2024年中考英热点专题题型考前必练之神秘的外星人（含解析）
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神秘的外星人
专题内容切合2022年版新课标主题内容“人与自然”范畴之“宇宙探索”主题群中“地球与宇宙探秘，航天事业发展”子主题内容。
一、阅读理解
A
Strange events in the sky, such as speeding lights or flying objects, which cannot be explained are called UFOs. Some people believe they could be a sign of aliens.
Many people think there are intelligent life forms in the universe (宇宙) other than humans. However, millions of pounds have been spent searching for aliens and no one has found proof (证据). Some people think it is a waste of money and people’s skills. So, is searching for aliens worth the money and effort Here are two different voices.
It’s a mystery that needs to be solved. “Are humans alone in the universe ” is a question that has inspired centuries of debate (辩论), dating back thousands of years and at least as far as the ancient Greeks. It is a question that has inspired hundreds of books and films, which shows how important it is to people. If someone sees a UFO, we need to find out what it is. Scientists searching for aliens could create new technologies and these could do good to Earth. For example, the small, lightweight camera on phones was developed so astronauts could take photos in space. Plus, if we were to discover aliens, we might be able to share knowledge with each other and create friendships across the universe.
________ There are many important problems here on Earth—such as climate (气候) change. People should focus energy on these rather than searching the universe for aliens that might not even exist (存在). Many people have spent lots of money trying to find signs of alien life and there is no result. Videos of flashing lights and strange objects in the sky might make good stories but in fact there is probably a reasonable explanation, such as a dirty mark on the camera lens (镜头). Besides, if aliens do exist, they will probably find us first so we might as well stop wasting our energy on them and spend it making Earth a better place to live.
1．Paragraph 2 mainly focuses on ________.
A．what aliens are like B．what people’s different opinions are
C．how people found proof D．how much money has been wasted
2．According to paragraph 3, searching for aliens could ________.
A．make people more friendly B．have started from ancient Greeks
C．inspire humans’ creativity D．develop the entertainment business
3．Which of the following can be put in ________
A．Humans have tried for years to find UFOs B．People should put more effort into space
C．The money could be put to better use D．More discoveries do good to Earth
4．The underlined word “these” refers to ________.
A．signs of alien life B．stories on science
C．videos of flashing lights D．problems on Earth
5．A debate is given to make readers ________.
A．discuss a subject B．show off abilities
C．compete for a prize D．learn from mistakes
【答案】1．B 2．C 3．C 4．D 5．A
【导语】本文是一篇议论文。文章主要介绍了人们对于“花很多钱和精力去寻找外星人是否值得”这一问题，所给出的不同想法和观点。
1．主旨大意题。根据“Many people think there are intelligent life forms in the universe (宇宙) other than humans. However, millions of pounds have been spent searching for aliens and no one has found proof (证据). Some people think it is a waste of money and people’s skills”可知，许多人认为除了人类之外，宇宙中还有智慧生命。然而，已经花费了数百万英镑寻找外星人，但没有人找到证据。有些人认为这是浪费金钱和人们的技能。故第二段主要聚焦于人们的不同意见是什么。故选B。
2．推理判断题。根据“Scientists searching for aliens could create new technologies and these could do good to Earth”可知，寻找外星人的科学家可以创造新技术，这些技术对地球有好处。故可推测出，寻找外星人这件事可以激发人类的创造力。故选C。
3．推理判断题。根据“Here are two different voices”、“It’s a mystery that needs to be solved”和“There are many important problems here on Earth—such as climate (气候) change”可知，此处针对“花很多钱和精力去寻找外星人是否值得”这一问题，有两种观点，一种是支持的，认为这是一个需要解开的谜。而另一种应该是反对的，他们认为地球上就有许多重要的问题，故可推测出，空格处句子应是反对寻找外星人的，并且认为用来找外星人的钱和精力应该用于解决地球上的问题。选项C“这笔钱可以用在更好的地方”符合语境。故选C。
4．词句猜测题。根据“There are many important problems here on Earth—such as climate (气候) change. People should focus energy on these rather than searching the universe for aliens that might not even exist (存在)”可知，地球上有许多重要的问题，比如气候变化。人们应该把精力集中在这些方面，而不是在宇宙中寻找可能根本不存在的外星人，故划线单词指代的是地球上的许多重要问题。故选D。
5．推理判断题。通读全文和“‘Are humans alone in the universe ’ is a question that has inspired
centuries of debate (辩论)...It is a question that has inspired hundreds of books and films...”可推测出，辩论是为了让读者讨论一个话题。故选A。
B
Do you ever get the feeling that you’re being watched Well, you might be right.
According to a study published in Nature on June 23 th, astronomers have found that 1,715 stars have had a direct view of Earth since humans have been here.
In order to do this, scientists used a method that looked for life on other planets. But instead, they changed the method so it could try to decide what places could see us.
The team looked at 331,312 stars within 326 light-years of Earth. Out of all those stars, only 1,715 of them could see Earth within the last 5,000 years, with an extra 319 stars that will be able to see us in the next 5,000 years.
“When I look up at the sky, it looks a little bit friendlier because it’s like, maybe someone is waving,” said Lisa Kaltenegger, director of the Carl Sagan Institute at Cornell University, US, and the study’s lead writer.
If a planet circling around one of those 1,715 stars is home to advanced (高级的) life, they could easily see that there is life here because of the oxygen on Earth. If that didn’t give it away, then the radio waves we have sent out into space would also be an indicator (标志). In fact, human-made radio waves have already travelled through 75 of the closest stars on Kaltenegger’s list.
Why haven’t we heard from anyone yet, then It takes a long time for messages to travel between star systems. By the time a message could be received, that advanced civilization (文明) would probably not exist any more.
Alan Boss, a scientist at the Carnegie Institution for Science in the US who wasn’t part of the study, wrote in an email that this long time would limit the chances for different life to exchange “emails and TikTok videos. ”
“So we should not expect aliens to show up anytime soon,” Boss said.
6．How many stars will be able to see us in the next 5,000 years
A．319. B．1,715. C．1,396. D．2,034.
7．What does the underlined word “that” in paragraph 6 refer to
A．A planet circling around one of those 1. 715 stars. B．Advanced life.
C．Oxygen on Earth. D．Human-made radio waves.
8．What could prevent humans from exchanging messages with aliens according to Boss
A．Human-made radio waves cannot travel far. B．Aliens don’t exist.
C．They can’t understand each other. D．It takes a long time for messages to travel.
9．What is the purpose of the text
A．To show new findings published in a study.
B．To discuss if there is advanced life on other stars.
C．To raise readers’ interest in aliens.
D．To explain how messages travel between different star systems.
【答案】6．D 7．C 8．D 9．A
【导语】本文是一篇说明文，文章介绍了天文家们发现宇宙中有上千颗恒星都可以看到地球，但是因为两者之间的距离过远，信息传递需要很长时间，所以短时间内无法与外星人交换信息。
6．细节理解题。根据“Out of all those stars, only 1,715 of them could see Earth within the last 5,000 years, with an extra 319 stars that will be able to see us in the next 5,000 years.”可知，在接下来的5000年里，将会有1715+319=2034颗星球看到我们。故选D。
7．词义猜测题。根据“they could easily see that there is life here because of the oxygen on Earth.”可知，划线部分指代的是“the oxygen on Earth”，其所在句子意为：如果地球上的氧气没有泄露这个信息，那么我们发射到太空的无线电波也将是一个指示器。故选C。
8．细节理解题。根据“It takes a long time for messages to travel between star systems.”可知，信息在恒星系统之间传播需要很长时间这一点阻碍了人类与外星人交换信息。故选D。
9．主旨大意题。根据“According to a study published in Nature on June 23, astronomers (天文学家) have found that 1,715 stars have had a direct view of Earth since humans were here.”并通读全文可知，本文介绍了天文学家在研究中的一项新发现，即有上千颗恒星都可以观测到地球，故选A。
C
NASA has been building a new telescope, called James Webb Space Telescope. Scientists think it could help them search for signs of alien life! They can watch exoplanets（外行星）with the help of the new telescope.
So far, all the exoplanets we have found are too distant to send astronauts or spaceships to them. Researchers hope the new telescope will help them find out whether there are aliens on these exoplanets!
The new telescope should be able to find out if the exoplanets have oxygen on them. Oxygen is a gas. On the earth, all animals need to breathe oxygen to live. It’s produced by plants and some bacteria（细菌）. This means if there is oxygen on a planet, there might be living things as well.
These aliens probably won’t be green people. Instead, they might be tiny bacteria. Scientists say that finding oxygen doesn’t mean there must be alien life. “We don’t know if life is the only cause of oxygen in an atmosphere（大气层）, ” NASA scientist Edward Schwieterman said.
The telescope can do more than search for aliens. It can study light from billions of light years away. This will help scientists learn more about what happened at the start of the universe.
10．________ could help scientists search for signs of alien life.
A．Exoplanets
B．Astronauts
C．Spaceships
D．James Webb Space Telescope
11．The underlined word “distant” in Paragraph 2 means ________.
A．cold B．difficult
C．far away D．dangerous
12．________ produce oxygen.
A．Plants and animals
B．Plants and some bacteria
C．Only plants
D．Only some bacteria
13．Scientists say that finding oxygen doesn’t mean there must be alien life because ________.
A．scientists think that if we find oxygen we must find alien life
B．scientists think all animals need to breathe oxygen to live
C．scientists don’t know if life is the only cause of oxygen in an atmosphere
D．scientists don’t think aliens are green people
14．According to the passage, which is NOT RIGHT ________
A．Scientists think the new telescope can help them search for exoplanets.
B．The new telescope should be able to find out if there is oxygen on exoplanets.
C．The aliens might be tiny bacteria.
D．The telescope can study light from billions of light years away.
【答案】10．D 11．C 12．B 13．C 14．A
【导语】本文是一篇说明文。主要讲了美国国家航空航天局一直在建造一台新的望远镜，名为詹姆斯·韦伯太空望远镜。科学家们认为这可以帮助他们寻找外星生命的迹象！他们可以在新望远镜的帮助下观测系外行星。
10．细节理解题。根据第一段“NASA has been building a new telescope, called James Webb Space Telescope. Scientists think it could help them search for signs of alien life!”可知，詹姆斯 韦伯太空望远镜可以帮助科学家寻找外星生命的迹象。故选D。
11．词义猜测题。根据第二段“So far, all the exoplanets we have found are too distant to send astronauts or spaceships to them.Researchers hope the new telescope will help them find out whether there are aliens on these exoplanets!”可知研究人员因为距离太远而希望新望远镜能帮助他们发现这些系外行星上是否有外星人。因此，下划线的“distant”一词的意思是“很远”相当于far away。故选C。
12．细节理解题。根据第三段“On the earth, all animals need to breathe oxygen to live. It’s produced by plants and some bacteria”可知，植物和一些细菌产生氧气。故选B。
13．细节理解题。根据第四段“Scientists say that finding oxygen doesn’t mean there must be alien life.We don’t know if life is the only cause of oxygen in an atmosphere”可知，科学家说找到氧气并不意味着一定有外星生命，因为科学家不知道生命是否是大气中氧气的唯一原因。故选C。
14．细节理解题。根据第一段“They can watch exoplanets with the help of the new telescope.”可知，他们可以在新望远镜的帮助下观测系外行星；选项A“科学家们认为新望远镜可以帮助他们搜寻系外行星”是错误的。故选A。
C
Our Milky Way Galaxy may be home to 2 billion planets that have the right conditions to support life. These planets have the correct temperature for liquid water. While no one knows what alien life would look like, if it is anything like life on earth, it would need water to keep alive. According to the research, there are nearly 2 billion habitable planets in the Milky Way Galaxy, which is just one of 100 to 200 billion galaxies in the universe.
The earth was formed 9 billion years after the Big Bang. Many of the planets in the Milky Way were formed millions and some even billions of years before the earth. If intelligent life had existed on any of these planets, they would be much more developed than humans. With that much time to develop the technology for space travel, we should have been visited by aliens many times.
So where is everyone Some people believe that aliens have visited earth many times, and some governments of the world might have known very well. some believe that we have also been visited many times in the ancient past. They point to the Egyptian pyramids or the huge heads of Easter Island. They say that there was no way that ancient humans were able to create these structures without alien assistance.
According to Harvard professor Avi Loeb, . For example, in 2017, a cigar-shaped object came within 33 million km of the earth as it passed through our solar system. It was named Oumuamua, which means “messenger from the distant past reaching out to us” in Hawaiian. Loeb says that its unusual shape and the fact that it sped up as it left our solar system sets it apart from anything else we’ve seen. He thinks it was a probe sent by an alien civilization. Jackie Fairey, says everyone should have reservation about this. She is one of many scientists who say there are more reasonable explanations for Oumuamua. That hasn’t stopped Professor Loeb. He has written a new book on Oumuamua called Extraterrestrial: The First Sign of Intelligent Life Beyond Earth.
15．According to the passage, if there were aliens, they ________.
A．could be similar to humans on the earth
B．must help build the Great Wall
C．would be smarter than humans on the earth
D．have a shorter history than humans
16．Which of the following can be put into the blank ________ in the passage
A．we hasn’t been visited by aliens for we got nothing from the universe
B．we not only have been visited by aliens, but also have evidence
C．no one could be sure about whether the evidence we’ve got is true
D．all of researchers doubt about the fact that we have been visited
17．From the passage, we can infer that ________.
A．there are fewer than 100 billion habitable planets in the universe
B．some aliens did actually, and on the earth in ancient times
C．some governments received information from the oumuamua
D．scientists Leob doesn’t agree with the idea that Fairey holds
18．What’s the best title of the passage
A．Where are all the aliens
B．When will the aliens visit us
C．Oumuamua: Have you ever been here
D．How many habitable planets are there
【答案】15．C 16．B 17．D 18．B
【导语】本文主要对是否有外星人到访过地球进行了猜测，科学家们对此有着不同的观点。
15．推理判断题。由第二段句子“If intelligent life had existed on any of these planets, they would be much more developed than humans.”可知，如果有外星人，它们会比人类发达得多，也就是会比人类更聪明，故选C。
16．推理判断题。由后句“For example, in 2017, a cigar-shaped object came within 33 million km of the earth as it passed through our solar system.”可知，此句应该是说我们被外星人拜访过，而且是有证据的，2017年，一个雪茄形状的物体穿过太阳系时，距离地球不到3300万公里。
B项“我们不仅被外星人拜访过，而且还有证据”，符合语境，故选B。
17．推理判断题。由最后一段句子“Jackie Fairey, says everyone should have reservation about this. She is one of many scientists who say there are more reasonable explanations for Oumuamua.”可知，Jackie Fairey认为那个雪茄形状物体不一定是外星人，应该有更合理的解释，所以科学家Leob与她的观点不同，故选D。
18．标题归纳题。本文主要讲述了人类对是否有外星人的猜测，而且有的科学家认为有些不明天体就是外星人到访过地球的证据，但有的科学家并不这样认为，所以最佳标题是“外星人何时拜访我们？”，故选B。
D
We have seen lots of science fiction movies about aliens (外星人). People travel to stars and even fight with aliens in the movies. But are there real aliens in the universe (宇宙) Most of us think it is impossible, just like fairy tales. But the answer of some scientists is yes. So they have been searching for aliens in outer space for many years. They hope to find life signs of aliens.
Some scientists are used to using radio telescopes (望远镜) to search for aliens in space. In order to find aliens, they have worked hard for over half a century, but so far they have found nothing. Then some scientists guessed aliens might not want to connect us, but aliens could answer our messages. So some scientists sent radio signals into the universe. They hope one day they would be picked up by alien technology. These scientists want to prove (证明) that we are not alone in the universe.
But what should we do if the “alien phone” rings one day Should we answer it Stephen Hawking, the famous physicist, thught it could be dangerous to connect aliens. He said that the main purpose of aliens’ visit to the earth could be searching for our resources (资源). But other scientists think we have no need to worry. David Morrison, a NASA scientist, said, “If an alien radio signal reaches the earth from a planet thousands of light-years away, then they almost surely have solved all the problems we still have including the short of resources. Maybe they are much smarter than us, but why do they want to hurt us I think we can try to connect them.”
19．________ scientists believe there are aliens.
A．Few B．All C．Most D．Some
20．Scientists have worked hard to find aliens for ________.
A．50 years B．more than 50 years C．40 years D．more than 100 years
21．Stephen Hawking’s opinion is that aliens ________.
A．are friendly B．are dangerous C．can’t be found D．have been on the earth
22．David Morrison thinks we want to connect aliens may because ________.
A．we want to find aliens B．aliens have many skills
C．we want to help aliens D．aliens are much smarter than us
23．The best title for the passage is “ ________”.
A．Ideas about aliensB．Protect our earth C．Stephen Hawking’s idea D．How to find aliens
【答案】19．D 20．B 21．B 22．D 23．A
【导语】本文是一篇说明文。这篇短文主要讲述了外星人是否存在以及不同的人对外星人的看法。
19．细节理解题。根据“But are there real aliens in the universe (宇宙) ...But the answer of some scientists is yes.”可知一些科学家给出了肯定的回答，也就是他们认为有外星人的存在。故选D。
20．推理判断题。根据“In order to find aliens, they have worked hard for over half a century, but so far they have found nothing.”可知，为了寻找外星人，他们辛苦了半个多世纪，但至今一无所获。半个多世纪也就是50多年。故选B。
21．细节理解题。根据“Stephen Hawking, the famous physicist, thought it could be dangerous to connect aliens.”可知著名物理学家Stephen Hawking认为联系外星人可能很危险。故选B。
22．细节理解题。根据“Maybe they are much smarter than us, but why do they want to hurt us ”可知，他认为也许外星人比我们聪明得多，所以人们想要联系外星人。故选D。
23．最佳标题题。这篇短文主要讲述了外星人是否存在以及不同的人对外星人的看法，以选项A“对外星人的看法”为标题最合适。故选A。
E
In many science fiction (科幻) movies, men travel to faraway stars and even fight with aliens. But are there real aliens in the universe (宇宙) The answer of some scientists is yes. So they have been searching for aliens in outer space for many years. They hope io find life signs of aliens.
Some scientists are used to using radio telescopes (望远镜) to search for aliens in space. In order to find aliens, they have worked hard for over half a century, but so far they have found nothing. Then some scientists guessed aliens might not want to connect us, but aliens could answer our messages. So some scientists sent radio signals into the universe. They hope one day they would be picked up by alien technology. These scientists want to prove (证明) that we are not alone in the universe.
But what should we do if the “alien phone” rings one day Should we answer it Stephen Hawking, the famous physicist, thought it could be dangerous to connect aliens. He said that the main purpose of aliens’ visiting to our solar system could be searching for our resources (资源). But other scientists think we have no need to worry. David Morrison. a NASA scientist, said, “If an alien radio signal reaches the earth from a planet thousands of light-years away, then they almost surely have solved all the problems we still have including the short of resources. Maybe they are much smarter than us, but why don’t they hurt us I think we can try to connect them.”
根据短文内容，选择最佳答案
24．______ scientists believe there are aliens.
A．Few B．Some C．Most D．All
25．Scientists have worked hard to find aliens for ______.
A．more than 50 years B．50 years C．40 years D．30 years
26．What is Stephen Hawking’s opinion
A．Aliens are dangerous. B．Aliens are friendly.
C．Aliens can’t be found. D．Aliens have been on the earth.
27．Why does David Morrison think we want to connect aliens
A．Because we want to find aliens. B．Because aliens are much smarter than us.
C．Because we want to help aliens. D．Because aliens have many skills.
28．What the best title for passage
A．How to Use Radio Telescope. B．Stephen Hawking’s Idea.
C．Protect Our Earth. D．Are We Alone
【答案】24．B 25．A 26．A 27．B 28．D
【导语】本文是一篇说明文。这篇短文主要讲述了外星人是否存在以及不同的人对外星人的看法。
24．细节理解题。根据“The answer of some scientists is yes”可知，一些科学家给出了肯定的回答，也就是他们认为有外星人的存在。故选B。
25．推理判断题。根据“In order to find aliens, they have worked hard for over half a century, but so far they have found nothing.”可知，为了寻找外星人，他们辛苦了半个多世纪，但至今一无所获。半个多世纪也就是50多年。故选A。
26．细节理解题。根据“Stephen Hawking, the famous physicist, thought it could be dangerous to connect aliens.”可知，著名物理学家Stephen Hawking认为联系外星人可能很危险。故选A。
27．细节理解题。根据“Maybe they are much smarter than us, but why do they want to hurt us ”可知，他认为也许外星人比我们聪明得多，所以人们想要联系外星人。故选B。
28．最佳标题题。结合全文内容，文章主要讲述了科学家在努力与外星人联系，同时也介绍了科学家对此的不同看法，因此选项D“我们是孤单的吗？”符合。故选D。
F
We have seen lots of science fiction movies about aliens. People travel to stars and even fight with aliens in the movies. But are there real aliens in the universe（宇宙） Most of us think it is impossible, just like fairy tales. But the answer of some scientists is yes. So they have been searching for aliens in outer space for many years. They hope to find life signs of aliens.
Some scientists are used to using radio telescopes（望远镜）to search for aliens in space. In order to find aliens, they have worked hard for over half a century, but so far they have found nothing. Then some scientists guessed aliens might not want to connect us, but aliens could answer our messages. So some scientists sent radio signals into the universe. They hope one day they would be picked up by alien technology. These scientists want to prove（证明）that we are not alone in the universe.
But what should we do if the “alien phone” rings one day Should we answer it Stephen Hawking, the famous physicist, thought it could be dangerous to connect aliens. He said that the main purpose of aliens’ visiting to the earth could be searching for our resources（资源）. But other scientists think we have no need to worry. David Morrison, a NASA scientist, said, “If an alien radio signal reaches the earth from a planet thousands of light-years away, then they almost
surely have solved all the problems we still have including the short of resources. Maybe they are much smarter than us, but why do they want to hurt us I think we can try to connect them.”
根据短文内容，选择最佳答案。
29．________ scientists believe there are aliens.
A．Few B．All C．Most D．Some
30．Scientists have worked hard to find aliens for ________.
A．50 years B．more than 50 years
C．40 years D．more than 100 years
31．What is Stephen Hawking’s opinion ________
A．Aliens are friendly. B．Aliens are dangerous.
C．Aliens can’t be found. D．Aliens have been on the earth.
32．Why does David Morrison think we want to connect aliens ________
A．Because we want to find aliens.
B．Because aliens have many skills.
C．Because we want to help aliens.
D．Because aliens are much smarter than us.
33．What’s the best title for the passage ________
A．Are We Alone B．Stephen Hawking’s Idea
C．Protect Our Earth D．How to find aliens
【答案】29．D 30．B 31．B 32．D 33．A
【导语】本文是一篇说明文。这篇短文主要讲述了外星人是否存在以及不同的人对外星人的看法。
29．细节理解题。根据“But are there real aliens in the universe（宇宙） …But the answer of some scientists is yes.”可知一些科学家给出了肯定的回答，也就是他们认为有外星人的存在。故选D。
30．推理判断题。根据“In order to find aliens, they have worked hard for over half a century, but so far they have found nothing.”可知，为了寻找外星人，他们辛苦了半个多世纪，但至今一无所获。半个多世纪也就是50多年。故选B。
31．细节理解题。根据“Stephen Hawking, the famous physicist, thought it could be dangerous to connect aliens.”可知著名物理学家Stephen Hawking认为联系外星人可能很危险。故选B。
32．细节理解题。根据“Maybe they are much smarter than us, but why do they want to hurt us ”可知，他认为也许外星人比我们聪明得多，所以人们想要联系外星人。故选D。
33．最佳标题题。结合全文内容，文章主要讲述了科学家在努力与外星人联系，同时也介绍了科学家对此的不同看法，由此可知本文的标题应为“我们是孤单的吗？”。故选A。
G
The idea of life in outer space has been talked about for a long time. Some scientists say that life development on Earth was far too unlikely for it to have happened anywhere else. Things had to be perfect for us to make it on this planet.
Other scientists say that space is too big. Stars and other planets are far too numerous for there to be no other life in the universe.
For many years, there have been reports of visitors from other planets. People all around the world have claimed to see alien spaceships or even aliens themselves.
There have been glimpses of these so-called UFOs (unidentified flying objects) flying through the air and they have even ben captured on video. Some Americans believe that the U.S. Army found an alien spaceship crashed in the desert and then lied to the press about it. Although these sightings may be true, scientists have not found significant evidence that aliens exist.
If you go out into the countryside on a clear night and look up, you can see thousands of stars. Those stars make up a tiny part of our universe. There are more stars, planets, and galaxies than we can count. Even the smartest scientists can’t even come close to defining how big space is. The number of possible stars and planets out there is bigger than our ability to count. If we are really on the only planet that can sustain life, then we are very special in a universe full of amazing things.
34．What have some people claimed about aliens
A．Aliens often appear in dreams. B．They have encountered aliens.
C．Aliens are extremely dangerous. D．Aliens are always kidnapping people.
35．Why does the author mention “reports of visitors from other planets”
A．To give an example of people who do not believe in science.
B．To explain why scientists are not interested in studying aliens.
C．To raise the issue of whether or not we are alone in the universe.
D．To inform people that a spaceship crashed in the American desert.
36．What can be inferred about finding aliens
A．It’s not possible yet. B．It’s already been done.
C．Aliens can be found in the USA． D．Scientists already know the truth.
37．What would be the best title for this passage
A．Visitors from Faraway Planets B．The Life and Times of an Alien Life
C．The Mysterious Crash Landing in America D．The Possibility of Life on Other Worlds
38．What is the genre of the article
A．Narration. B．Exposition. C．Argumentation. D．Description
【答案】34．B 35．C 36．A 37．D 38．B
【导语】本文主要介绍了在外太空有生命的想法已经被讨论了很长时间，列举了一些例子以及科学家的看法。
34．细节理解题。根据第三段的“People all around the world have claimed to see alien spaceships or even aliens themselves.”可知世界各地的人们都声称看到了外星飞船，甚至外星人自己。故选B。
35．推理判断题。根据第三段的“For many years, there have been reports of visitors from other planets. People all around the world have claimed to see alien spaceships or even aliens themselves.”可知多年来，一直有来自其他星球的访客的报道。世界各地的人们都声称看到了外星飞船，甚至外星人自己。因此是为了引出地外是否有生命的话题。故选C。
36．推理判断题。根据第四段的“Although these sightings may be true, scientists have not found significant evidence that aliens exist.”可知尽管这些目击事件可能是真的，但科学家们还没有发现外星人存在的重要证据。因此找到外星人还不可能。故选A。
37．最佳标题题。通读全文可知，主要讨论了地外太空是否存在生命，选项D“其他世界生命的可能性”符合。故选D。
38．细节理解题。通读全文可知，作者通过列举人们遇到的例子以及科学家的观点来讨论外太空是否有生命，应是论述文。故选B。
H
Do you ever get the feeling that you’re being watched Well, you might be right.
According to a study published in Nature on June 23, astronomers(天文学家) have found that 1,715 stars have had a direct view of Earth since humans were here.
In order to do this, scientists used a method that looked for life on other planets. But instead, they changed the method so it could try to decide what places could see us.
The team looked at 331,312 stars within 326 light-years of Earth. Out of all those stars, only 1,715 of them could see Earth within the last 5,000 years, with an extra 319 stars that will be able to see us in the next 5,000 years.
“When I look up at the sky, it looks a little bit friendlier because it’s like, maybe somebody is waving,” said Lisa Kaltenegger, director of the Carl Sagan Institute at Cornell University, US, and the study’s lead writer.
If a planet circling around one of those 1,715 stars is home to advanced life, they could easily see that there is life here because of the oxygen on Earth. If that didn’t give it away, then the radio waves we have sent out into space would also be an indicator. In fact, human-made radio waves have already travelled through 75 of the closest stars on Kaltenegger’s list.
Why haven’t we heard from anyone yet, then
It takes a long time for messages to travel between star systems. By the time a message could be received, that advanced life would probably not exist anymore.
Alan Boss, a scientist at the Carnegie Institution for Science in the US who wasn’t part of the study, wrote in an email that this long time would limit the chances for different life to exchange “emails and TikTok videos”.
“So we should not expect aliens to show up anytime soon,” Boss said.
39．How many stars will be able to see us in the next 5,000 years
A．2,034 B．1,715 C．1,396 D．319
40．What does the underlined word “that” in paragraph 6 refer to
A．Advanced life. B．The oxygen on Earth. C．Human-made radio waves. D．A planet circling around one of those 1,715 stars.
41．What could prevent humans from exchanging messages with aliens according to Boss
A．Aliens don’t exist. B．They cannot understand each other.
C．Human-made radio waves cannot travel far. D．It takes a long time for messages to travel.
42．What is the purpose of the text
A．To raise reader’s interest in Aliens. B．To present new findings published in a study.
C．To discuss if there is advanced life on other stars. D．To explain how messages travel between different star systems.
【答案】39．A 40．B 41．D 42．B
【导语】本文是一篇说明文，文章介绍了天文家们发现宇宙中有上千颗恒星都可以看到地球，但是因为两者之间的距离过远，信息传递需要很长时间，所以短时间内无法与外星人交换信息。
39．细节理解题。根据“Out of all those stars, only 1,715 of them could see Earth within the last 5,000 years, with an extra 319 stars that will be able to see us in the next 5,000 years.”可知，在接下来的5000年里，将会有1715+319=2034颗星球看到我们。故选A。
40．词义猜测题。根据“they could easily see that there is life here because of the oxygen on Earth.”可知，划线部分指代的是“the oxygen on Earth”，说明如果地球上的氧气没有泄露这个信息，那么我们发射到太空的无线电波也将是一个指示器。故选B。
41．细节理解题。根据“It takes a long time for messages to travel between star systems.”可知，信息在恒星系统之间传播需要很长时间这一点阻碍了人类与外星人交换信息。故选D。
42．主旨大意题。根据“According to a study published in Nature on June 23, astronomers(天文学家) have found that 1,715 stars have had a direct view of Earth since humans were here.”并通读全文可知，本文介绍了天文学家在研究中的一项新发现，即有上千颗恒星都可以观测到地球，故选B。
二、完形填空
通读下面短文，掌握其大意，然后在每小题所给的四个选项中，选出一个最佳答案，并将答题卡上对应题目所选的选项涂黑。
Many kids are crazy about space. Last month, a space agency (机构) told the public that they were 43 “a planet protection officer.” Some people laughed at the funny job title, but a
9-year-old boy took the information 44 . He wrote a letter to the agency, saying that he wanted the job.
“Dear sirs, my name is Sam Lee. I think I am the 45 person for the job,” he wrote.
What are Sam’s 46 For one, he wrote, “My sister says I act like an alien (外星人)” Sam also said he had watched almost all the 47 movies he could find. His last sentence may touch people’s hearts: “I am young, so I can learn to think like an alien.”
Sam soon got a 48 from Bill Black, director of the agency. “We have received your letter. It is great that you are interested in the job. This job is to 49 the earth from germs (细菌) on things brought back from other planets.” Bill ended the letter with some warm words, 50 Sam to study hard and do well in school. “We hope to 51 you at the agency one day.” he wrote.
“Among kids, there are 52 space scientists.” Bill told a newspaper. “We think of this letter as a chance that may forever change our kids’ life.”
43．A．waking up B．looking for C．dealing with D．talking about
44．A．simply B．lightly C．seriously D．clearly
45．A．right B．kind C．important D．favorite
46．A．dreams B．problems C．discoveries D．advantages
47．A．war B．road C．space D．sports
48．A．job B．test C．reply D．ticket
49．A．move B．protect C．pull D．collect
50．A．warming B．helping C．ordering D．encouraging
51．A．see B．tell C．thank D．search
52．A．past B．future C．recent D．present
【答案】
43．B 44．C 45．A 46．D 47．C 48．C 49．B 50．D 51．A 52．B
【分析】本文主要讲述一个航天机构要招聘“行星保护员”，一名九岁的男孩写信应聘该职位，最后他收到了机构负责人的回信，鼓励他好好学习，希望将来能在航天机构看到他。
43．句意：上个月，一家航天机构告诉公众，他们正在寻找“一名行星保护员”。
waking up醒来；looking for寻找；dealing with处理；talking about谈论。根据“He wrote a letter to the agency, saying that he wanted the job.”可知，航天机构在招聘行星保护员。故选B。
44．句意：有人嘲笑这个有趣的职位，但一个九岁的男孩却认真对待这条信息。
simply简单地；lightly轻地；seriously认真地，严肃地；clearly清晰地。根据“He wrote a letter to the agency, saying that he wanted the job.”小男孩写信去应聘。可知，男孩认真对待这条招聘信息。故选C。
45．句意：我想我是这个工作的合适人选。
right正确的，合适的；kind善良的；important重要的；favorite喜爱的。根据“I think I am the person for the job”可知，男孩想要这份工作，此处是写信自荐，认为自己是合适的人选。故选A。
46．句意：萨姆的优点是什么？
dreams梦想；problems问题；discoveries发现；advantages优点。根据“My sister says I act like an alien ”以及“Sam also said he had watched almost all the...movies he could find.”可知，此处在介绍萨姆的优点。故选D。
47．句意：萨姆还说，他几乎看了他能找到的所有太空电影。
war战争；road路；space太空；sports运动。根据“Last month, a space agency told the public that they were...”可知，男孩想要的工作与航天有关，所以他看的电影应该与太空有关。故选C。
48．句意：萨姆很快就得到了该机构主任比尔·布莱克的答复。
job工作；test测试；reply答复；ticket票。根据“We have received your letter. It is great that you are interested in the job. This job is to...”以及“Bill ended the letter with some warm words”可知，此处指男孩收到了回信。故选C。
49．句意：这项工作是保护地球免受从其他星球带回的东西上的细菌的侵害。
move移动；protect保护；pull拉；collect收集。根据“a planet protection officer”可知，这份工作是保护地球，protect...from...表示“保护……免受……”。故选B。
50．句意：比尔在信的结尾说了几句温暖的话，鼓励萨姆努力学习，在学校取得好成绩。
warming温暖；helping帮助；ordering命令；encouraging鼓励。根据“Bill ended the letter with some warm words”可知，此处表示鼓励男孩好好学习，encourage sb. to do sth.表示“鼓励某人做某事”。故选D。
51．句意：我们希望有一天能在机构里见到你。
see看见；tell告诉；thank感谢；search搜索。根据“We hope to...you at the agency one day.”可知，比尔鼓励男孩好好学习，希望将来有一天他真的能来机构工作。故选A。
52．句意：在孩子们当中，有未来的太空科学家。
past过去的；future将来的；recent最近的；present现在的。根据“Among kids, there are...space scientists.”可知，此处指孩子们中有未来的科学家。故选B。
三、语法选择
Is there life beyond(在……之外) the Earth Many people are interested in this question and try 53 out the answer.
54 April 28, 2020, China’s radio telescope(射电望远镜) FAST 55 to look for aliens.
Radio telescopes 56 find signals(信号) from space. On the Earth, 57 TVs and radios give out signals. Scientists 58 that if there are aliens beyond the Earth, their technology would also give out signals like ours does.
Many radio telescopes 59 the world are being used to look for aliens. In 1977, for example, the Big Ear radio telescope in the US found 60 strong signal from space. Many 61 believe it may have come from aliens.
FAST is the world’s largest and most sensitive radio telescope. 62 can find even the weakest signals from space. Scientists are 63 about what it might find in the future.
Finding aliens might sound exciting, 64 some scientists think that we should not contact(联系) aliens. For example, the famous British scientist Stephen Hawking believed that aliens 65 dangerous. 66 they find us, they might take resources from the Earth. That would be very bad 67 us. What do you think
53．A．find B．to find C．finding D．to findding
54．A．In B．After C．On D．Under
55．A．begins B．began C．is beginning D．will begin
56．A．can B．must C．need D．have to
57．A．we B．ours C．our D．us
58．A．believe B．were believing C．will believe D．are believing
59．A．around B．from C．by D．between
60．A．an B．a C．the D．/
61．A．people B．peoples C．people’s D．peoples’
62．A．It B．Its C．It’s D．They
63．A．exciting B．excitement C．excite D．excited
64．A．when B．until C．but D．so
65．A．were B．is C．was D．am
66．A．And B．Before C．Or D．If
67．A．for B．of C．with D．over
【答案】
53．B 54．C 55．B 56．A 57．C 58．A 59．A 60．B 61．A 62．A 63．D 64．C 65．A 66．D 67．A
【导语】本文讲述了中国的FAST射电望远镜是世界上最大、最灵敏的射电望远镜，它甚至可以发现来自太空的最微弱的信号，中国科学家使用它进行地外文明探索。
53．句意：许多人对这个问题感兴趣，并努力找到答案。
find找到，动词原形；to find动词不定式；finding动名词；to finding中的to是介词。根据“Many people are interested in this question and try...out the answer.”可知很多人尽力去找到答案，try to do sth“努力做某事”，故选B。
54．句意：2020年4月28日，中国的FAST射电望远镜开始寻找外星人。
In后加某年某月某季节；After在……之后；On后加具体的某一天；Under在……下面。根据“April 28, 2020”可知是具体到某一天，应用介词on，故选C。
55．句意：2020年4月28日，中国的FAST射电望远镜开始寻找外星人。
begins开始，动词三单；began动词过去式；is beginning现在进行时；will begin一般将来时。根据“April 28, 2020”可知是发生在过去的事情，应用一般过去时，故选B。
56．句意：射电望远镜可以发现来自太空的信号。
can能；must必须；need需要；have to不得不。根据“Radio telescopes...find signals(信号) from space.”可知射电望远镜可以发现来自太空的信号，应用can表示“能够”，故选A。
57．句意：在地球上，我们的电视和收音机发出信号。
we我们；ours我们的，名词性物主代词；our我们的，形容词性物主代词；us我们，宾格。空后是名词，应用形容词性物主代词修饰，故选C。
58．句意：科学家们相信，如果地球之外有外星人，他们的技术也会像我们的一样发出信号。
believe相信，动词原形；were believing过去进行时；will believe一般将来时；are believing现在进行时。此句是陈述一个客观事实，表示“科学家们的观点”，应用一般现在时，故选A。
59．句意：世界各地的许多射电望远镜都被用来寻找外星人。
around周围；from从；by通过；between在……之间。固定短语around the world“全世界”，故选A。
60．句意：例如，1977年，美国的Big Ear射电望远镜发现了一个来自太空的强信号。
an用于元音音素前；a用于辅音音素前；the表示特指；/不填。根据“found...strong signal”可知是发现一个太空信号，应用不定冠词，strong是以辅音音素开头，应用a修饰，故选B。
61．句意：许多人认为它可能来自外星人。
people人们；peoples民族；people’s人们的；peoples’民族的。根据“Many...believe it may have come from aliens.”可知是指许多人，people表示“人们”，故选A。
62．句意：它甚至可以发现来自太空的最微弱的信号。
It它；Its它的；It’s它是；They他们。此空是作主语，代指FAST，应用it，故选A。
63．句意：科学家们对它未来可能发现的东西感到兴奋。
exciting令人激动的；excitement激动，名词；excite激动，动词；excited感到激动的。主语是人，应用形容词excited修饰，be excited about“对……感到兴奋”，故选D。
64．句意：发现外星人可能听起来令人兴奋，但一些科学家认为我们不应该接触外星人。
when当……时候；until直到；but但是；so所以。前后语境是转折关系，应用but连接，故选C。
65．句意：例如，著名的英国科学家斯蒂芬·霍金认为外星人是危险的。
were是，are的过去式；is是，be动词第三人称单数；was是，am和is的过去式；am是，主语是I。主语aliens是复数，主句是一般过去时，从句也用过去的时态，were符合语境，故选A。
66．句意：如果他们找到我们，他们可能会从地球上掠夺资源。
And和；Before在……以前；Or或者；If如果。前后句是条件关系，应用if引导条件状语从句，故选D。
67．句意：那对我们很不利。
for为了；of……的；with和；over在……上面。固定短语be bad for“对……有坏处”，故选A。
四、短文填空
根据短文内容和所给中文提示，写出空白处各单词的正确形式。
Are we alone in the vast universe
Since Neil Armstrong set foot on the moon, humans have never stopped 68 (explore) the outer space. Are there any creatures out there 69 (在) some unknown planets We 70 (发现) a clear evidence, yet.
In the 71 (太阳的) system, there are 8 planets going around the sun. While in the Milky Way, there are hundreds of billions of sun-like stars. What if some, or only few of them have their own earth-like planets Don’t forget about this: there are hundreds of billions of 72 (星系) like the Milky Way in the universe!
If, I say if, we are the only creatures in the whole universe, what a tremendous waste of space and time it 73 (是)!
So why haven’t any aliens contacted us It’s the distance. The far-far-away distance makes it impossible for both to 74 (到达) each other.
75 (然而), what if we 76 (最终) find each other Will it be a peaceful trans-species communication, a long-lasting war, or a one-side slaughter The answer 77 (lie) in warnings of Stephen Hawking, and in the famous series novels The Three-body Problem (三体).
【答案】
68．exploring 69．on 70．haven’t found 71．solar 72．galaxies 73．will be 74．reach 75．However/Anyway 76．finally 77．lies
【导语】本文主要介绍了人类一直在探索外太空，探索在一些未知的星球是否存在生物。
68．句意：自从Neil Armstrong踏上月球以来，人类就从未停止过对外太空的探索。根据stop doing sth.“停止做某事”可知，此处要用explore的动名词exploring。故填exploring。
69．句意：在一些未知的星球上有生物吗？根据“some unknown planets”和汉语提示可知，此处指在一些未知的星球上；on“在……上”符合语境。故填on。
70．句意：我们还没有找到明确的证据。find“发现”，动词；由“yet”可知，时态为现在完成时，结构为have done；再根据下文“If, I say if, we are the only creatures in the whole universe ...”可推知，目前还没有明确的证据证实外太空存在其他生物，故应用否定结构。故填haven’t found。
71．句意：在太阳系中，有8颗行星绕着太阳转。根据汉语提示可知，应填solar，solar system“太阳系”。故填solar。
72．句意：别忘了：宇宙中有数千亿个像银河系这样的星系！galaxy“星系”，名词；由空前的“hundreds of billions of ”可知，此处要用名词复数。故填galaxies。
73．句意：如果，我说如果，我们是整个宇宙中唯一的生物，那将是多么巨大的空间和时间浪费啊！be“是”，动词；分析句子可知，该句为if引导的条件状语从句，遵循“主将从现”原则，故主句要用一般将来时，结构为will+动词原形。故填will be。
74．句意：遥远的距离使双方不可能相互接触。reach“到达”，动词；空前的“to”为不定式符号，故此处用动词原形。故填reach。
75．句意：然而，如果我们最终找到彼此呢？however/anyway“然而”，副词，句首首字母大写。故填However/Anyway。
76．句意：然而，如果我们最终找到彼此呢？finally“最终”，副词修饰动词“find”。故填finally。
77．句意：答案就在Stephen Hawking的警告中，在著名的系列小说《三体》中。主语“The answer”为名词单数，时态为一般现在时，故谓语动词要用第三人称单数。故填lies。
专题内容切合2022年版新课标主题内容“人与自然”范畴之“宇宙探索”主题群中“地球与宇宙探秘，航天事业发展”子主题内容。
一、阅读理解
A
Strange events in the sky, such as speeding lights or flying objects, which cannot be explained are called UFOs. Some people believe they could be a sign of aliens.
Many people think there are intelligent life forms in the universe (宇宙) other than humans. However, millions of pounds have been spent searching for aliens and no one has found proof (证据). Some people think it is a waste of money and people’s skills. So, is searching for aliens worth the money and effort Here are two different voices.
It’s a mystery that needs to be solved. “Are humans alone in the universe ” is a question that has inspired centuries of debate (辩论), dating back thousands of years and at least as far as the ancient Greeks. It is a question that has inspired hundreds of books and films, which shows how important it is to people. If someone sees a UFO, we need to find out what it is. Scientists searching for aliens could create new technologies and these could do good to Earth. For example, the small, lightweight camera on phones was developed so astronauts could take photos in space. Plus, if we were to discover aliens, we might be able to share knowledge with each other and create friendships across the universe.
________ There are many important problems here on Earth—such as climate (气候) change. People should focus energy on these rather than searching the universe for aliens that might not even exist (存在). Many people have spent lots of money trying to find signs of alien life and there is no result. Videos of flashing lights and strange objects in the sky might make good stories but in fact there is probably a reasonable explanation, such as a dirty mark on the camera lens (镜头). Besides, if aliens do exist, they will probably find us first so we might as well stop wasting our energy on them and spend it making Earth a better place to live.
1．Paragraph 2 mainly focuses on ________.
A．what aliens are like B．what people’s different opinions are
C．how people found proof D．how much money has been wasted
2．According to paragraph 3, searching for aliens could ________.
A．make people more friendly B．have started from ancient Greeks
C．inspire humans’ creativity D．develop the entertainment business
3．Which of the following can be put in ________
A．Humans have tried for years to find UFOs B．People should put more effort into space
C．The money could be put to better use D．More discoveries do good to Earth
4．The underlined word “these” refers to ________.
A．signs of alien life B．stories on science
C．videos of flashing lights D．problems on Earth
5．A debate is given to make readers ________.
A．discuss a subject B．show off abilities
C．compete for a prize D．learn from mistakes
【答案】1．B 2．C 3．C 4．D 5．A
【导语】本文是一篇议论文。文章主要介绍了人们对于“花很多钱和精力去寻找外星人是否值得”这一问题，所给出的不同想法和观点。
1．主旨大意题。根据“Many people think there are intelligent life forms in the universe (宇宙) other than humans. However, millions of pounds have been spent searching for aliens and no one has found proof (证据). Some people think it is a waste of money and people’s skills”可知，许多人认为除了人类之外，宇宙中还有智慧生命。然而，已经花费了数百万英镑寻找外星人，但没有人找到证据。有些人认为这是浪费金钱和人们的技能。故第二段主要聚焦于人们的不同意见是什么。故选B。
2．推理判断题。根据“Scientists searching for aliens could create new technologies and these could do good to Earth”可知，寻找外星人的科学家可以创造新技术，这些技术对地球有好处。故可推测出，寻找外星人这件事可以激发人类的创造力。故选C。
3．推理判断题。根据“Here are two different voices”、“It’s a mystery that needs to be solved”和“There are many important problems here on Earth—such as climate (气候) change”可知，此处针对“花很多钱和精力去寻找外星人是否值得”这一问题，有两种观点，一种是支持的，认为这是一个需要解开的谜。而另一种应该是反对的，他们认为地球上就有许多重要的问题，故可推测出，空格处句子应是反对寻找外星人的，并且认为用来找外星人的钱和精力应该用于解决地球上的问题。选项C“这笔钱可以用在更好的地方”符合语境。故选C。
4．词句猜测题。根据“There are many important problems here on Earth—such as climate (气候) change. People should focus energy on these rather than searching the universe for aliens that might not even exist (存在)”可知，地球上有许多重要的问题，比如气候变化。人们应该把精力集中在这些方面，而不是在宇宙中寻找可能根本不存在的外星人，故划线单词指代的是地球上的许多重要问题。故选D。
5．推理判断题。通读全文和“‘Are humans alone in the universe ’ is a question that has inspired
centuries of debate (辩论)...It is a question that has inspired hundreds of books and films...”可推测出，辩论是为了让读者讨论一个话题。故选A。
B
Do you ever get the feeling that you’re being watched Well, you might be right.
According to a study published in Nature on June 23 th, astronomers have found that 1,715 stars have had a direct view of Earth since humans have been here.
In order to do this, scientists used a method that looked for life on other planets. But instead, they changed the method so it could try to decide what places could see us.
The team looked at 331,312 stars within 326 light-years of Earth. Out of all those stars, only 1,715 of them could see Earth within the last 5,000 years, with an extra 319 stars that will be able to see us in the next 5,000 years.
“When I look up at the sky, it looks a little bit friendlier because it’s like, maybe someone is waving,” said Lisa Kaltenegger, director of the Carl Sagan Institute at Cornell University, US, and the study’s lead writer.
If a planet circling around one of those 1,715 stars is home to advanced (高级的) life, they could easily see that there is life here because of the oxygen on Earth. If that didn’t give it away, then the radio waves we have sent out into space would also be an indicator (标志). In fact, human-made radio waves have already travelled through 75 of the closest stars on Kaltenegger’s list.
Why haven’t we heard from anyone yet, then It takes a long time for messages to travel between star systems. By the time a message could be received, that advanced civilization (文明) would probably not exist any more.
Alan Boss, a scientist at the Carnegie Institution for Science in the US who wasn’t part of the study, wrote in an email that this long time would limit the chances for different life to exchange “emails and TikTok videos. ”
“So we should not expect aliens to show up anytime soon,” Boss said.
6．How many stars will be able to see us in the next 5,000 years
A．319. B．1,715. C．1,396. D．2,034.
7．What does the underlined word “that” in paragraph 6 refer to
A．A planet circling around one of those 1. 715 stars. B．Advanced life.
C．Oxygen on Earth. D．Human-made radio waves.
8．What could prevent humans from exchanging messages with aliens according to Boss
A．Human-made radio waves cannot travel far. B．Aliens don’t exist.
C．They can’t understand each other. D．It takes a long time for messages to travel.
9．What is the purpose of the text
A．To show new findings published in a study.
B．To discuss if there is advanced life on other stars.
C．To raise readers’ interest in aliens.
D．To explain how messages travel between different star systems.
【答案】6．D 7．C 8．D 9．A
【导语】本文是一篇说明文，文章介绍了天文家们发现宇宙中有上千颗恒星都可以看到地球，但是因为两者之间的距离过远，信息传递需要很长时间，所以短时间内无法与外星人交换信息。
6．细节理解题。根据“Out of all those stars, only 1,715 of them could see Earth within the last 5,000 years, with an extra 319 stars that will be able to see us in the next 5,000 years.”可知，在接下来的5000年里，将会有1715+319=2034颗星球看到我们。故选D。
7．词义猜测题。根据“they could easily see that there is life here because of the oxygen on Earth.”可知，划线部分指代的是“the oxygen on Earth”，其所在句子意为：如果地球上的氧气没有泄露这个信息，那么我们发射到太空的无线电波也将是一个指示器。故选C。
8．细节理解题。根据“It takes a long time for messages to travel between star systems.”可知，信息在恒星系统之间传播需要很长时间这一点阻碍了人类与外星人交换信息。故选D。
9．主旨大意题。根据“According to a study published in Nature on June 23, astronomers (天文学家) have found that 1,715 stars have had a direct view of Earth since humans were here.”并通读全文可知，本文介绍了天文学家在研究中的一项新发现，即有上千颗恒星都可以观测到地球，故选A。
C
NASA has been building a new telescope, called James Webb Space Telescope. Scientists think it could help them search for signs of alien life! They can watch exoplanets（外行星）with the help of the new telescope.
So far, all the exoplanets we have found are too distant to send astronauts or spaceships to them. Researchers hope the new telescope will help them find out whether there are aliens on these exoplanets!
The new telescope should be able to find out if the exoplanets have oxygen on them. Oxygen is a gas. On the earth, all animals need to breathe oxygen to live. It’s produced by plants and some bacteria（细菌）. This means if there is oxygen on a planet, there might be living things as well.
These aliens probably won’t be green people. Instead, they might be tiny bacteria. Scientists say that finding oxygen doesn’t mean there must be alien life. “We don’t know if life is the only cause of oxygen in an atmosphere（大气层）, ” NASA scientist Edward Schwieterman said.
The telescope can do more than search for aliens. It can study light from billions of light years away. This will help scientists learn more about what happened at the start of the universe.
10．________ could help scientists search for signs of alien life.
A．Exoplanets
B．Astronauts
C．Spaceships
D．James Webb Space Telescope
11．The underlined word “distant” in Paragraph 2 means ________.
A．cold B．difficult
C．far away D．dangerous
12．________ produce oxygen.
A．Plants and animals
B．Plants and some bacteria
C．Only plants
D．Only some bacteria
13．Scientists say that finding oxygen doesn’t mean there must be alien life because ________.
A．scientists think that if we find oxygen we must find alien life
B．scientists think all animals need to breathe oxygen to live
C．scientists don’t know if life is the only cause of oxygen in an atmosphere
D．scientists don’t think aliens are green people
14．According to the passage, which is NOT RIGHT ________
A．Scientists think the new telescope can help them search for exoplanets.
B．The new telescope should be able to find out if there is oxygen on exoplanets.
C．The aliens might be tiny bacteria.
D．The telescope can study light from billions of light years away.
【答案】10．D 11．C 12．B 13．C 14．A
【导语】本文是一篇说明文。主要讲了美国国家航空航天局一直在建造一台新的望远镜，名为詹姆斯·韦伯太空望远镜。科学家们认为这可以帮助他们寻找外星生命的迹象！他们可以在新望远镜的帮助下观测系外行星。
10．细节理解题。根据第一段“NASA has been building a new telescope, called James Webb Space Telescope. Scientists think it could help them search for signs of alien life!”可知，詹姆斯 韦伯太空望远镜可以帮助科学家寻找外星生命的迹象。故选D。
11．词义猜测题。根据第二段“So far, all the exoplanets we have found are too distant to send astronauts or spaceships to them.Researchers hope the new telescope will help them find out whether there are aliens on these exoplanets!”可知研究人员因为距离太远而希望新望远镜能帮助他们发现这些系外行星上是否有外星人。因此，下划线的“distant”一词的意思是“很远”相当于far away。故选C。
12．细节理解题。根据第三段“On the earth, all animals need to breathe oxygen to live. It’s produced by plants and some bacteria”可知，植物和一些细菌产生氧气。故选B。
13．细节理解题。根据第四段“Scientists say that finding oxygen doesn’t mean there must be alien life.We don’t know if life is the only cause of oxygen in an atmosphere”可知，科学家说找到氧气并不意味着一定有外星生命，因为科学家不知道生命是否是大气中氧气的唯一原因。故选C。
14．细节理解题。根据第一段“They can watch exoplanets with the help of the new telescope.”可知，他们可以在新望远镜的帮助下观测系外行星；选项A“科学家们认为新望远镜可以帮助他们搜寻系外行星”是错误的。故选A。
C
Our Milky Way Galaxy may be home to 2 billion planets that have the right conditions to support life. These planets have the correct temperature for liquid water. While no one knows what alien life would look like, if it is anything like life on earth, it would need water to keep alive. According to the research, there are nearly 2 billion habitable planets in the Milky Way Galaxy, which is just one of 100 to 200 billion galaxies in the universe.
The earth was formed 9 billion years after the Big Bang. Many of the planets in the Milky Way were formed millions and some even billions of years before the earth. If intelligent life had existed on any of these planets, they would be much more developed than humans. With that much time to develop the technology for space travel, we should have been visited by aliens many times.
So where is everyone Some people believe that aliens have visited earth many times, and some governments of the world might have known very well. some believe that we have also been visited many times in the ancient past. They point to the Egyptian pyramids or the huge heads of Easter Island. They say that there was no way that ancient humans were able to create these structures without alien assistance.
According to Harvard professor Avi Loeb, . For example, in 2017, a cigar-shaped object came within 33 million km of the earth as it passed through our solar system. It was named Oumuamua, which means “messenger from the distant past reaching out to us” in Hawaiian. Loeb says that its unusual shape and the fact that it sped up as it left our solar system sets it apart from anything else we’ve seen. He thinks it was a probe sent by an alien civilization. Jackie Fairey, says everyone should have reservation about this. She is one of many scientists who say there are more reasonable explanations for Oumuamua. That hasn’t stopped Professor Loeb. He has written a new book on Oumuamua called Extraterrestrial: The First Sign of Intelligent Life Beyond Earth.
15．According to the passage, if there were aliens, they ________.
A．could be similar to humans on the earth
B．must help build the Great Wall
C．would be smarter than humans on the earth
D．have a shorter history than humans
16．Which of the following can be put into the blank ________ in the passage
A．we hasn’t been visited by aliens for we got nothing from the universe
B．we not only have been visited by aliens, but also have evidence
C．no one could be sure about whether the evidence we’ve got is true
D．all of researchers doubt about the fact that we have been visited
17．From the passage, we can infer that ________.
A．there are fewer than 100 billion habitable planets in the universe
B．some aliens did actually, and on the earth in ancient times
C．some governments received information from the oumuamua
D．scientists Leob doesn’t agree with the idea that Fairey holds
18．What’s the best title of the passage
A．Where are all the aliens
B．When will the aliens visit us
C．Oumuamua: Have you ever been here
D．How many habitable planets are there
【答案】15．C 16．B 17．D 18．B
【导语】本文主要对是否有外星人到访过地球进行了猜测，科学家们对此有着不同的观点。
15．推理判断题。由第二段句子“If intelligent life had existed on any of these planets, they would be much more developed than humans.”可知，如果有外星人，它们会比人类发达得多，也就是会比人类更聪明，故选C。
16．推理判断题。由后句“For example, in 2017, a cigar-shaped object came within 33 million km of the earth as it passed through our solar system.”可知，此句应该是说我们被外星人拜访过，而且是有证据的，2017年，一个雪茄形状的物体穿过太阳系时，距离地球不到3300万公里。
B项“我们不仅被外星人拜访过，而且还有证据”，符合语境，故选B。
17．推理判断题。由最后一段句子“Jackie Fairey, says everyone should have reservation about this. She is one of many scientists who say there are more reasonable explanations for Oumuamua.”可知，Jackie Fairey认为那个雪茄形状物体不一定是外星人，应该有更合理的解释，所以科学家Leob与她的观点不同，故选D。
18．标题归纳题。本文主要讲述了人类对是否有外星人的猜测，而且有的科学家认为有些不明天体就是外星人到访过地球的证据，但有的科学家并不这样认为，所以最佳标题是“外星人何时拜访我们？”，故选B。
D
We have seen lots of science fiction movies about aliens (外星人). People travel to stars and even fight with aliens in the movies. But are there real aliens in the universe (宇宙) Most of us think it is impossible, just like fairy tales. But the answer of some scientists is yes. So they have been searching for aliens in outer space for many years. They hope to find life signs of aliens.
Some scientists are used to using radio telescopes (望远镜) to search for aliens in space. In order to find aliens, they have worked hard for over half a century, but so far they have found nothing. Then some scientists guessed aliens might not want to connect us, but aliens could answer our messages. So some scientists sent radio signals into the universe. They hope one day they would be picked up by alien technology. These scientists want to prove (证明) that we are not alone in the universe.
But what should we do if the “alien phone” rings one day Should we answer it Stephen Hawking, the famous physicist, thught it could be dangerous to connect aliens. He said that the main purpose of aliens’ visit to the earth could be searching for our resources (资源). But other scientists think we have no need to worry. David Morrison, a NASA scientist, said, “If an alien radio signal reaches the earth from a planet thousands of light-years away, then they almost surely have solved all the problems we still have including the short of resources. Maybe they are much smarter than us, but why do they want to hurt us I think we can try to connect them.”
19．________ scientists believe there are aliens.
A．Few B．All C．Most D．Some
20．Scientists have worked hard to find aliens for ________.
A．50 years B．more than 50 years C．40 years D．more than 100 years
21．Stephen Hawking’s opinion is that aliens ________.
A．are friendly B．are dangerous C．can’t be found D．have been on the earth
22．David Morrison thinks we want to connect aliens may because ________.
A．we want to find aliens B．aliens have many skills
C．we want to help aliens D．aliens are much smarter than us
23．The best title for the passage is “ ________”.
A．Ideas about aliensB．Protect our earth C．Stephen Hawking’s idea D．How to find aliens
【答案】19．D 20．B 21．B 22．D 23．A
【导语】本文是一篇说明文。这篇短文主要讲述了外星人是否存在以及不同的人对外星人的看法。
19．细节理解题。根据“But are there real aliens in the universe (宇宙) ...But the answer of some scientists is yes.”可知一些科学家给出了肯定的回答，也就是他们认为有外星人的存在。故选D。
20．推理判断题。根据“In order to find aliens, they have worked hard for over half a century, but so far they have found nothing.”可知，为了寻找外星人，他们辛苦了半个多世纪，但至今一无所获。半个多世纪也就是50多年。故选B。
21．细节理解题。根据“Stephen Hawking, the famous physicist, thought it could be dangerous to connect aliens.”可知著名物理学家Stephen Hawking认为联系外星人可能很危险。故选B。
22．细节理解题。根据“Maybe they are much smarter than us, but why do they want to hurt us ”可知，他认为也许外星人比我们聪明得多，所以人们想要联系外星人。故选D。
23．最佳标题题。这篇短文主要讲述了外星人是否存在以及不同的人对外星人的看法，以选项A“对外星人的看法”为标题最合适。故选A。
E
In many science fiction (科幻) movies, men travel to faraway stars and even fight with aliens. But are there real aliens in the universe (宇宙) The answer of some scientists is yes. So they have been searching for aliens in outer space for many years. They hope io find life signs of aliens.
Some scientists are used to using radio telescopes (望远镜) to search for aliens in space. In order to find aliens, they have worked hard for over half a century, but so far they have found nothing. Then some scientists guessed aliens might not want to connect us, but aliens could answer our messages. So some scientists sent radio signals into the universe. They hope one day they would be picked up by alien technology. These scientists want to prove (证明) that we are not alone in the universe.
But what should we do if the “alien phone” rings one day Should we answer it Stephen Hawking, the famous physicist, thought it could be dangerous to connect aliens. He said that the main purpose of aliens’ visiting to our solar system could be searching for our resources (资源). But other scientists think we have no need to worry. David Morrison. a NASA scientist, said, “If an alien radio signal reaches the earth from a planet thousands of light-years away, then they almost surely have solved all the problems we still have including the short of resources. Maybe they are much smarter than us, but why don’t they hurt us I think we can try to connect them.”
根据短文内容，选择最佳答案
24．______ scientists believe there are aliens.
A．Few B．Some C．Most D．All
25．Scientists have worked hard to find aliens for ______.
A．more than 50 years B．50 years C．40 years D．30 years
26．What is Stephen Hawking’s opinion
A．Aliens are dangerous. B．Aliens are friendly.
C．Aliens can’t be found. D．Aliens have been on the earth.
27．Why does David Morrison think we want to connect aliens
A．Because we want to find aliens. B．Because aliens are much smarter than us.
C．Because we want to help aliens. D．Because aliens have many skills.
28．What the best title for passage
A．How to Use Radio Telescope. B．Stephen Hawking’s Idea.
C．Protect Our Earth. D．Are We Alone
【答案】24．B 25．A 26．A 27．B 28．D
【导语】本文是一篇说明文。这篇短文主要讲述了外星人是否存在以及不同的人对外星人的看法。
24．细节理解题。根据“The answer of some scientists is yes”可知，一些科学家给出了肯定的回答，也就是他们认为有外星人的存在。故选B。
25．推理判断题。根据“In order to find aliens, they have worked hard for over half a century, but so far they have found nothing.”可知，为了寻找外星人，他们辛苦了半个多世纪，但至今一无所获。半个多世纪也就是50多年。故选A。
26．细节理解题。根据“Stephen Hawking, the famous physicist, thought it could be dangerous to connect aliens.”可知，著名物理学家Stephen Hawking认为联系外星人可能很危险。故选A。
27．细节理解题。根据“Maybe they are much smarter than us, but why do they want to hurt us ”可知，他认为也许外星人比我们聪明得多，所以人们想要联系外星人。故选B。
28．最佳标题题。结合全文内容，文章主要讲述了科学家在努力与外星人联系，同时也介绍了科学家对此的不同看法，因此选项D“我们是孤单的吗？”符合。故选D。
F
We have seen lots of science fiction movies about aliens. People travel to stars and even fight with aliens in the movies. But are there real aliens in the universe（宇宙） Most of us think it is impossible, just like fairy tales. But the answer of some scientists is yes. So they have been searching for aliens in outer space for many years. They hope to find life signs of aliens.
Some scientists are used to using radio telescopes（望远镜）to search for aliens in space. In order to find aliens, they have worked hard for over half a century, but so far they have found nothing. Then some scientists guessed aliens might not want to connect us, but aliens could answer our messages. So some scientists sent radio signals into the universe. They hope one day they would be picked up by alien technology. These scientists want to prove（证明）that we are not alone in the universe.
But what should we do if the “alien phone” rings one day Should we answer it Stephen Hawking, the famous physicist, thought it could be dangerous to connect aliens. He said that the main purpose of aliens’ visiting to the earth could be searching for our resources（资源）. But other scientists think we have no need to worry. David Morrison, a NASA scientist, said, “If an alien radio signal reaches the earth from a planet thousands of light-years away, then they almost
surely have solved all the problems we still have including the short of resources. Maybe they are much smarter than us, but why do they want to hurt us I think we can try to connect them.”
根据短文内容，选择最佳答案。
29．________ scientists believe there are aliens.
A．Few B．All C．Most D．Some
30．Scientists have worked hard to find aliens for ________.
A．50 years B．more than 50 years
C．40 years D．more than 100 years
31．What is Stephen Hawking’s opinion ________
A．Aliens are friendly. B．Aliens are dangerous.
C．Aliens can’t be found. D．Aliens have been on the earth.
32．Why does David Morrison think we want to connect aliens ________
A．Because we want to find aliens.
B．Because aliens have many skills.
C．Because we want to help aliens.
D．Because aliens are much smarter than us.
33．What’s the best title for the passage ________
A．Are We Alone B．Stephen Hawking’s Idea
C．Protect Our Earth D．How to find aliens
【答案】29．D 30．B 31．B 32．D 33．A
【导语】本文是一篇说明文。这篇短文主要讲述了外星人是否存在以及不同的人对外星人的看法。
29．细节理解题。根据“But are there real aliens in the universe（宇宙） …But the answer of some scientists is yes.”可知一些科学家给出了肯定的回答，也就是他们认为有外星人的存在。故选D。
30．推理判断题。根据“In order to find aliens, they have worked hard for over half a century, but so far they have found nothing.”可知，为了寻找外星人，他们辛苦了半个多世纪，但至今一无所获。半个多世纪也就是50多年。故选B。
31．细节理解题。根据“Stephen Hawking, the famous physicist, thought it could be dangerous to connect aliens.”可知著名物理学家Stephen Hawking认为联系外星人可能很危险。故选B。
32．细节理解题。根据“Maybe they are much smarter than us, but why do they want to hurt us ”可知，他认为也许外星人比我们聪明得多，所以人们想要联系外星人。故选D。
33．最佳标题题。结合全文内容，文章主要讲述了科学家在努力与外星人联系，同时也介绍了科学家对此的不同看法，由此可知本文的标题应为“我们是孤单的吗？”。故选A。
G
The idea of life in outer space has been talked about for a long time. Some scientists say that life development on Earth was far too unlikely for it to have happened anywhere else. Things had to be perfect for us to make it on this planet.
Other scientists say that space is too big. Stars and other planets are far too numerous for there to be no other life in the universe.
For many years, there have been reports of visitors from other planets. People all around the world have claimed to see alien spaceships or even aliens themselves.
There have been glimpses of these so-called UFOs (unidentified flying objects) flying through the air and they have even ben captured on video. Some Americans believe that the U.S. Army found an alien spaceship crashed in the desert and then lied to the press about it. Although these sightings may be true, scientists have not found significant evidence that aliens exist.
If you go out into the countryside on a clear night and look up, you can see thousands of stars. Those stars make up a tiny part of our universe. There are more stars, planets, and galaxies than we can count. Even the smartest scientists can’t even come close to defining how big space is. The number of possible stars and planets out there is bigger than our ability to count. If we are really on the only planet that can sustain life, then we are very special in a universe full of amazing things.
34．What have some people claimed about aliens
A．Aliens often appear in dreams. B．They have encountered aliens.
C．Aliens are extremely dangerous. D．Aliens are always kidnapping people.
35．Why does the author mention “reports of visitors from other planets”
A．To give an example of people who do not believe in science.
B．To explain why scientists are not interested in studying aliens.
C．To raise the issue of whether or not we are alone in the universe.
D．To inform people that a spaceship crashed in the American desert.
36．What can be inferred about finding aliens
A．It’s not possible yet. B．It’s already been done.
C．Aliens can be found in the USA． D．Scientists already know the truth.
37．What would be the best title for this passage
A．Visitors from Faraway Planets B．The Life and Times of an Alien Life
C．The Mysterious Crash Landing in America D．The Possibility of Life on Other Worlds
38．What is the genre of the article
A．Narration. B．Exposition. C．Argumentation. D．Description
【答案】34．B 35．C 36．A 37．D 38．B
【导语】本文主要介绍了在外太空有生命的想法已经被讨论了很长时间，列举了一些例子以及科学家的看法。
34．细节理解题。根据第三段的“People all around the world have claimed to see alien spaceships or even aliens themselves.”可知世界各地的人们都声称看到了外星飞船，甚至外星人自己。故选B。
35．推理判断题。根据第三段的“For many years, there have been reports of visitors from other planets. People all around the world have claimed to see alien spaceships or even aliens themselves.”可知多年来，一直有来自其他星球的访客的报道。世界各地的人们都声称看到了外星飞船，甚至外星人自己。因此是为了引出地外是否有生命的话题。故选C。
36．推理判断题。根据第四段的“Although these sightings may be true, scientists have not found significant evidence that aliens exist.”可知尽管这些目击事件可能是真的，但科学家们还没有发现外星人存在的重要证据。因此找到外星人还不可能。故选A。
37．最佳标题题。通读全文可知，主要讨论了地外太空是否存在生命，选项D“其他世界生命的可能性”符合。故选D。
38．细节理解题。通读全文可知，作者通过列举人们遇到的例子以及科学家的观点来讨论外太空是否有生命，应是论述文。故选B。
H
Do you ever get the feeling that you’re being watched Well, you might be right.
According to a study published in Nature on June 23, astronomers(天文学家) have found that 1,715 stars have had a direct view of Earth since humans were here.
In order to do this, scientists used a method that looked for life on other planets. But instead, they changed the method so it could try to decide what places could see us.
The team looked at 331,312 stars within 326 light-years of Earth. Out of all those stars, only 1,715 of them could see Earth within the last 5,000 years, with an extra 319 stars that will be able to see us in the next 5,000 years.
“When I look up at the sky, it looks a little bit friendlier because it’s like, maybe somebody is waving,” said Lisa Kaltenegger, director of the Carl Sagan Institute at Cornell University, US, and the study’s lead writer.
If a planet circling around one of those 1,715 stars is home to advanced life, they could easily see that there is life here because of the oxygen on Earth. If that didn’t give it away, then the radio waves we have sent out into space would also be an indicator. In fact, human-made radio waves have already travelled through 75 of the closest stars on Kaltenegger’s list.
Why haven’t we heard from anyone yet, then
It takes a long time for messages to travel between star systems. By the time a message could be received, that advanced life would probably not exist anymore.
Alan Boss, a scientist at the Carnegie Institution for Science in the US who wasn’t part of the study, wrote in an email that this long time would limit the chances for different life to exchange “emails and TikTok videos”.
“So we should not expect aliens to show up anytime soon,” Boss said.
39．How many stars will be able to see us in the next 5,000 years
A．2,034 B．1,715 C．1,396 D．319
40．What does the underlined word “that” in paragraph 6 refer to
A．Advanced life. B．The oxygen on Earth. C．Human-made radio waves. D．A planet circling around one of those 1,715 stars.
41．What could prevent humans from exchanging messages with aliens according to Boss
A．Aliens don’t exist. B．They cannot understand each other.
C．Human-made radio waves cannot travel far. D．It takes a long time for messages to travel.
42．What is the purpose of the text
A．To raise reader’s interest in Aliens. B．To present new findings published in a study.
C．To discuss if there is advanced life on other stars. D．To explain how messages travel between different star systems.
【答案】39．A 40．B 41．D 42．B
【导语】本文是一篇说明文，文章介绍了天文家们发现宇宙中有上千颗恒星都可以看到地球，但是因为两者之间的距离过远，信息传递需要很长时间，所以短时间内无法与外星人交换信息。
39．细节理解题。根据“Out of all those stars, only 1,715 of them could see Earth within the last 5,000 years, with an extra 319 stars that will be able to see us in the next 5,000 years.”可知，在接下来的5000年里，将会有1715+319=2034颗星球看到我们。故选A。
40．词义猜测题。根据“they could easily see that there is life here because of the oxygen on Earth.”可知，划线部分指代的是“the oxygen on Earth”，说明如果地球上的氧气没有泄露这个信息，那么我们发射到太空的无线电波也将是一个指示器。故选B。
41．细节理解题。根据“It takes a long time for messages to travel between star systems.”可知，信息在恒星系统之间传播需要很长时间这一点阻碍了人类与外星人交换信息。故选D。
42．主旨大意题。根据“According to a study published in Nature on June 23, astronomers(天文学家) have found that 1,715 stars have had a direct view of Earth since humans were here.”并通读全文可知，本文介绍了天文学家在研究中的一项新发现，即有上千颗恒星都可以观测到地球，故选B。
二、完形填空
通读下面短文，掌握其大意，然后在每小题所给的四个选项中，选出一个最佳答案，并将答题卡上对应题目所选的选项涂黑。
Many kids are crazy about space. Last month, a space agency (机构) told the public that they were 43 “a planet protection officer.” Some people laughed at the funny job title, but a
9-year-old boy took the information 44 . He wrote a letter to the agency, saying that he wanted the job.
“Dear sirs, my name is Sam Lee. I think I am the 45 person for the job,” he wrote.
What are Sam’s 46 For one, he wrote, “My sister says I act like an alien (外星人)” Sam also said he had watched almost all the 47 movies he could find. His last sentence may touch people’s hearts: “I am young, so I can learn to think like an alien.”
Sam soon got a 48 from Bill Black, director of the agency. “We have received your letter. It is great that you are interested in the job. This job is to 49 the earth from germs (细菌) on things brought back from other planets.” Bill ended the letter with some warm words, 50 Sam to study hard and do well in school. “We hope to 51 you at the agency one day.” he wrote.
“Among kids, there are 52 space scientists.” Bill told a newspaper. “We think of this letter as a chance that may forever change our kids’ life.”
43．A．waking up B．looking for C．dealing with D．talking about
44．A．simply B．lightly C．seriously D．clearly
45．A．right B．kind C．important D．favorite
46．A．dreams B．problems C．discoveries D．advantages
47．A．war B．road C．space D．sports
48．A．job B．test C．reply D．ticket
49．A．move B．protect C．pull D．collect
50．A．warming B．helping C．ordering D．encouraging
51．A．see B．tell C．thank D．search
52．A．past B．future C．recent D．present
【答案】
43．B 44．C 45．A 46．D 47．C 48．C 49．B 50．D 51．A 52．B
【分析】本文主要讲述一个航天机构要招聘“行星保护员”，一名九岁的男孩写信应聘该职位，最后他收到了机构负责人的回信，鼓励他好好学习，希望将来能在航天机构看到他。
43．句意：上个月，一家航天机构告诉公众，他们正在寻找“一名行星保护员”。
waking up醒来；looking for寻找；dealing with处理；talking about谈论。根据“He wrote a letter to the agency, saying that he wanted the job.”可知，航天机构在招聘行星保护员。故选B。
44．句意：有人嘲笑这个有趣的职位，但一个九岁的男孩却认真对待这条信息。
simply简单地；lightly轻地；seriously认真地，严肃地；clearly清晰地。根据“He wrote a letter to the agency, saying that he wanted the job.”小男孩写信去应聘。可知，男孩认真对待这条招聘信息。故选C。
45．句意：我想我是这个工作的合适人选。
right正确的，合适的；kind善良的；important重要的；favorite喜爱的。根据“I think I am the person for the job”可知，男孩想要这份工作，此处是写信自荐，认为自己是合适的人选。故选A。
46．句意：萨姆的优点是什么？
dreams梦想；problems问题；discoveries发现；advantages优点。根据“My sister says I act like an alien ”以及“Sam also said he had watched almost all the...movies he could find.”可知，此处在介绍萨姆的优点。故选D。
47．句意：萨姆还说，他几乎看了他能找到的所有太空电影。
war战争；road路；space太空；sports运动。根据“Last month, a space agency told the public that they were...”可知，男孩想要的工作与航天有关，所以他看的电影应该与太空有关。故选C。
48．句意：萨姆很快就得到了该机构主任比尔·布莱克的答复。
job工作；test测试；reply答复；ticket票。根据“We have received your letter. It is great that you are interested in the job. This job is to...”以及“Bill ended the letter with some warm words”可知，此处指男孩收到了回信。故选C。
49．句意：这项工作是保护地球免受从其他星球带回的东西上的细菌的侵害。
move移动；protect保护；pull拉；collect收集。根据“a planet protection officer”可知，这份工作是保护地球，protect...from...表示“保护……免受……”。故选B。
50．句意：比尔在信的结尾说了几句温暖的话，鼓励萨姆努力学习，在学校取得好成绩。
warming温暖；helping帮助；ordering命令；encouraging鼓励。根据“Bill ended the letter with some warm words”可知，此处表示鼓励男孩好好学习，encourage sb. to do sth.表示“鼓励某人做某事”。故选D。
51．句意：我们希望有一天能在机构里见到你。
see看见；tell告诉；thank感谢；search搜索。根据“We hope to...you at the agency one day.”可知，比尔鼓励男孩好好学习，希望将来有一天他真的能来机构工作。故选A。
52．句意：在孩子们当中，有未来的太空科学家。
past过去的；future将来的；recent最近的；present现在的。根据“Among kids, there are...space scientists.”可知，此处指孩子们中有未来的科学家。故选B。
三、语法选择
Is there life beyond(在……之外) the Earth Many people are interested in this question and try 53 out the answer.
54 April 28, 2020, China’s radio telescope(射电望远镜) FAST 55 to look for aliens.
Radio telescopes 56 find signals(信号) from space. On the Earth, 57 TVs and radios give out signals. Scientists 58 that if there are aliens beyond the Earth, their technology would also give out signals like ours does.
Many radio telescopes 59 the world are being used to look for aliens. In 1977, for example, the Big Ear radio telescope in the US found 60 strong signal from space. Many 61 believe it may have come from aliens.
FAST is the world’s largest and most sensitive radio telescope. 62 can find even the weakest signals from space. Scientists are 63 about what it might find in the future.
Finding aliens might sound exciting, 64 some scientists think that we should not contact(联系) aliens. For example, the famous British scientist Stephen Hawking believed that aliens 65 dangerous. 66 they find us, they might take resources from the Earth. That would be very bad 67 us. What do you think
53．A．find B．to find C．finding D．to findding
54．A．In B．After C．On D．Under
55．A．begins B．began C．is beginning D．will begin
56．A．can B．must C．need D．have to
57．A．we B．ours C．our D．us
58．A．believe B．were believing C．will believe D．are believing
59．A．around B．from C．by D．between
60．A．an B．a C．the D．/
61．A．people B．peoples C．people’s D．peoples’
62．A．It B．Its C．It’s D．They
63．A．exciting B．excitement C．excite D．excited
64．A．when B．until C．but D．so
65．A．were B．is C．was D．am
66．A．And B．Before C．Or D．If
67．A．for B．of C．with D．over
【答案】
53．B 54．C 55．B 56．A 57．C 58．A 59．A 60．B 61．A 62．A 63．D 64．C 65．A 66．D 67．A
【导语】本文讲述了中国的FAST射电望远镜是世界上最大、最灵敏的射电望远镜，它甚至可以发现来自太空的最微弱的信号，中国科学家使用它进行地外文明探索。
53．句意：许多人对这个问题感兴趣，并努力找到答案。
find找到，动词原形；to find动词不定式；finding动名词；to finding中的to是介词。根据“Many people are interested in this question and try...out the answer.”可知很多人尽力去找到答案，try to do sth“努力做某事”，故选B。
54．句意：2020年4月28日，中国的FAST射电望远镜开始寻找外星人。
In后加某年某月某季节；After在……之后；On后加具体的某一天；Under在……下面。根据“April 28, 2020”可知是具体到某一天，应用介词on，故选C。
55．句意：2020年4月28日，中国的FAST射电望远镜开始寻找外星人。
begins开始，动词三单；began动词过去式；is beginning现在进行时；will begin一般将来时。根据“April 28, 2020”可知是发生在过去的事情，应用一般过去时，故选B。
56．句意：射电望远镜可以发现来自太空的信号。
can能；must必须；need需要；have to不得不。根据“Radio telescopes...find signals(信号) from space.”可知射电望远镜可以发现来自太空的信号，应用can表示“能够”，故选A。
57．句意：在地球上，我们的电视和收音机发出信号。
we我们；ours我们的，名词性物主代词；our我们的，形容词性物主代词；us我们，宾格。空后是名词，应用形容词性物主代词修饰，故选C。
58．句意：科学家们相信，如果地球之外有外星人，他们的技术也会像我们的一样发出信号。
believe相信，动词原形；were believing过去进行时；will believe一般将来时；are believing现在进行时。此句是陈述一个客观事实，表示“科学家们的观点”，应用一般现在时，故选A。
59．句意：世界各地的许多射电望远镜都被用来寻找外星人。
around周围；from从；by通过；between在……之间。固定短语around the world“全世界”，故选A。
60．句意：例如，1977年，美国的Big Ear射电望远镜发现了一个来自太空的强信号。
an用于元音音素前；a用于辅音音素前；the表示特指；/不填。根据“found...strong signal”可知是发现一个太空信号，应用不定冠词，strong是以辅音音素开头，应用a修饰，故选B。
61．句意：许多人认为它可能来自外星人。
people人们；peoples民族；people’s人们的；peoples’民族的。根据“Many...believe it may have come from aliens.”可知是指许多人，people表示“人们”，故选A。
62．句意：它甚至可以发现来自太空的最微弱的信号。
It它；Its它的；It’s它是；They他们。此空是作主语，代指FAST，应用it，故选A。
63．句意：科学家们对它未来可能发现的东西感到兴奋。
exciting令人激动的；excitement激动，名词；excite激动，动词；excited感到激动的。主语是人，应用形容词excited修饰，be excited about“对……感到兴奋”，故选D。
64．句意：发现外星人可能听起来令人兴奋，但一些科学家认为我们不应该接触外星人。
when当……时候；until直到；but但是；so所以。前后语境是转折关系，应用but连接，故选C。
65．句意：例如，著名的英国科学家斯蒂芬·霍金认为外星人是危险的。
were是，are的过去式；is是，be动词第三人称单数；was是，am和is的过去式；am是，主语是I。主语aliens是复数，主句是一般过去时，从句也用过去的时态，were符合语境，故选A。
66．句意：如果他们找到我们，他们可能会从地球上掠夺资源。
And和；Before在……以前；Or或者；If如果。前后句是条件关系，应用if引导条件状语从句，故选D。
67．句意：那对我们很不利。
for为了；of……的；with和；over在……上面。固定短语be bad for“对……有坏处”，故选A。
四、短文填空
根据短文内容和所给中文提示，写出空白处各单词的正确形式。
Are we alone in the vast universe
Since Neil Armstrong set foot on the moon, humans have never stopped 68 (explore) the outer space. Are there any creatures out there 69 (在) some unknown planets We 70 (发现) a clear evidence, yet.
In the 71 (太阳的) system, there are 8 planets going around the sun. While in the Milky Way, there are hundreds of billions of sun-like stars. What if some, or only few of them have their own earth-like planets Don’t forget about this: there are hundreds of billions of 72 (星系) like the Milky Way in the universe!
If, I say if, we are the only creatures in the whole universe, what a tremendous waste of space and time it 73 (是)!
So why haven’t any aliens contacted us It’s the distance. The far-far-away distance makes it impossible for both to 74 (到达) each other.
75 (然而), what if we 76 (最终) find each other Will it be a peaceful trans-species communication, a long-lasting war, or a one-side slaughter The answer 77 (lie) in warnings of Stephen Hawking, and in the famous series novels The Three-body Problem (三体).
【答案】
68．exploring 69．on 70．haven’t found 71．solar 72．galaxies 73．will be 74．reach 75．However/Anyway 76．finally 77．lies
【导语】本文主要介绍了人类一直在探索外太空，探索在一些未知的星球是否存在生物。
68．句意：自从Neil Armstrong踏上月球以来，人类就从未停止过对外太空的探索。根据stop doing sth.“停止做某事”可知，此处要用explore的动名词exploring。故填exploring。
69．句意：在一些未知的星球上有生物吗？根据“some unknown planets”和汉语提示可知，此处指在一些未知的星球上；on“在……上”符合语境。故填on。
70．句意：我们还没有找到明确的证据。find“发现”，动词；由“yet”可知，时态为现在完成时，结构为have done；再根据下文“If, I say if, we are the only creatures in the whole universe ...”可推知，目前还没有明确的证据证实外太空存在其他生物，故应用否定结构。故填haven’t found。
71．句意：在太阳系中，有8颗行星绕着太阳转。根据汉语提示可知，应填solar，solar system“太阳系”。故填solar。
72．句意：别忘了：宇宙中有数千亿个像银河系这样的星系！galaxy“星系”，名词；由空前的“hundreds of billions of ”可知，此处要用名词复数。故填galaxies。
73．句意：如果，我说如果，我们是整个宇宙中唯一的生物，那将是多么巨大的空间和时间浪费啊！be“是”，动词；分析句子可知，该句为if引导的条件状语从句，遵循“主将从现”原则，故主句要用一般将来时，结构为will+动词原形。故填will be。
74．句意：遥远的距离使双方不可能相互接触。reach“到达”，动词；空前的“to”为不定式符号，故此处用动词原形。故填reach。
75．句意：然而，如果我们最终找到彼此呢？however/anyway“然而”，副词，句首首字母大写。故填However/Anyway。
76．句意：然而，如果我们最终找到彼此呢？finally“最终”，副词修饰动词“find”。故填finally。
77．句意：答案就在Stephen Hawking的警告中，在著名的系列小说《三体》中。主语“The answer”为名词单数，时态为一般现在时，故谓语动词要用第三人称单数。故填lies。
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