【学霸速记巧练】八年级英语上册Unit 7 When Tomorrow Comes 基础达标评价卷（含答案解析）

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Unit 7 When Tomorrow Comes基础达标评价卷
(时间: 70 分钟 满分:90分)
一、单项选择(本大题共20小题，每小题1分，共20分)
1．—Do you want to go to the ________ with me this weekend
—Sure. I love listening to music and watching the singers performing.
A．cinema B．library C．museum D．concert
2．—There is a new job for Jack, but he doesn’t ________ it.
—Maybe he has his own plans.
A．form B．pass C．accept D．miss
3．The teacher always encourages us to keep a ________ mind when we meet difficulties.
A．positive B．boring C．direct D．lazy
4．—Who ________ will come to the party tomorrow
—Fred.
A．other B．else C．another D．others
5．—I don’t know ________ to work out the math problem. What can I do
—You can ask your teachers for help.
A．what B．when C．where D．how
6．—Can you tell me something ________ your school life in the USA
—Sure. It’s quite different from that in China.
A．from B．about C．in D．for
7．—What time shall we leave for the party
—It ________ the traffic. If the traffic is heavy, we may need to leave earlier.
A．waits for B．depends on C．looks at D．thinks about
8．—I’m not sure if I can pass the English test.
—Be confident! You can pass it ________ you study hard every day.
A．as soon as B．as well as C．as long as D．as far as
9．—Hey, Lisa! You look unhappy. ________
—I failed the math exam again. I don’t know what to do.
A．What’s up B．What’s that C．How are you D．How’s the weather
10．—Do you think there will be world peace
—________ It’s the common wish of all humans.
A．I hope so. B．I don’t think so. C．I have no idea. D．That sounds great.
11．—Zhang Guimei has given the lifetime of __________ to girls’ education.
—What a great effort she has made.
A．service B．competition C．difference D．date
12．If Open AI technology is used properly, the world ________ better and better.
A．becomes B．become C．is becoming D．will become
13．It is helpful ________ a good habit of reading in language learning.
A．to show B．to offer C．to develop D．to match
14．Mr White was looking for his key ______, but he couldn’t find it ______.
A．everywhere; anywhere B．everywhere; somewhere
C．somewhere; everywhere D．anywhere; somewhere
15．She ________ a gift yesterday, but she didn’t ________ it.
A．received; accept B．received; accepted C．accepted; receive D．accepted; accept
16．Mike is the ________ in our class because he often thinks out new ideas.
A．most careful B．most outgoing C．most creative D．most friendly
17．Cutting down too many trees ________ it ________ for us to protect wildlife in the world.
A．make; impossible B．makes; impossible C．make; possible D．makes; possible
18．The thing flew very fast in the sky and soon it .Nobody knew what it was.
A．appeared B．disappeared C．arrived D．reached
19．All life on earth depends ________ the sun.
A．with B．on C．under D．by
20．China has the world’s ________ population of university graduates（毕业生）, so providing them with jobs is really a ________ for the government.
A．largest; situation B．most; competition C．largest; challenge D．most; change
二、完形填空(本大题共10小题，每小题1分，共10分)
阅读下面短文，掌握其大意，然后从各题所给的A、B、C和D项中选出最佳选项，并在答题卡上
将该项涂黑。
Science and technology (科技) are developing faster and faster. They change the world a lot and become 21 parts of our daily lives. In recent years, a new technology called Artificial Intelligence (AI) has become very popular. It is 22 our lives in amazing ways. It makes many things no longer just 23 . They may come true one day.
AI can do many things, such as cleaning houses, driving cars, and even playing chess. Surprisingly, some 24 are also using AI to help with their daily teaching. For example, teachers can use AI to analyze (分析) students’ performance. So that they can use different teaching ways to meet different students’ 25 . What’s more, AI can help students solve their learning problems by answering questions and providing answers, just like a real 26 . With AI, teaching and learning become better and more 27 .
Some scientists believe that AI will become even more 28 in the future. It will be able to do almost everything instead of humans. However, some people are becoming worried, because AI can do many things faster and better than humans. They are afraid that they might 29 their jobs in the future.
So please remember: Every coin has two sides. We can use AI to improve our lives, but we can’t let it 30 our lives.
21．A．strange B．important C．healthy D．terrible
22．A．changing B．breaking C．filling D．leading
23．A．jokes B．dreams C．questions D．news
24．A．houses B．cinemas C．schools D．markets
25．A．feelings B．hobbies C．wishes D．needs
26．A．teacher B．student C．friend D．parent
27．A．boring B．enjoyable C．correct D．difficult
28．A．possible B．dangerous C．colorful D．powerful
29．A．get B．create C．finish D．lose
30．A．leave B．enter C．control D．beautify
三、阅读理解(本大题共15小题，每小题1分，共30分)
A
Four students are talking about the future after class.
In 2050, China will be much richer than it is now. Shanghai will be ready for the 40th Olympic Games in 2052. The sky will be bluer and cleaner and the air will be fresher. ▲
A holiday on the moon will not be a dream. We can also travel to other planets and talk with aliens (外星人). We might eat something like pills instead of today’s meals. Everyone will enjoy a longer life.
Robots will be very popular. They’ll do what people don’t want to do. We’ll build new homes on other planets. By then, I’ll be over thirty years old. Maybe I’ll have an exciting talk with my friends in my new home on another planet!
In 2050, cloning (克隆) will be used in many ways . It will bring back animals that disappeared many years ago. The whole world will be a big family. We’ll live a much easier and better life.
31．What are the four students talking about
A．Robots. B．Traveling.
C．Protecting the environment. D．The life in the future.
32．Which of the following can be put in ▲
A．We will live in big houses. B．We will travel around the world.
C．We will buy lots of beautiful things. D．Humans and animals share the world peacefully.
33．Which of the words can replace the underlined word “pills”
A．Oil. B．Fruit. C．Medicine. D．Food.
34．What does Zhang Lan think will happen in 2050
A．Many animals will disappear. B．Cloning will be very useful.
C．We’ll live on other plants. D．People will have a much harder life.
35．What’s the attitude of the four students
A．Positive. B．Sad. C．Negative (消极的). D．Unbelievable.
B
In real life, you can see science and technology everywhere now. In the near future, your life will be full of more amazing technologies. They will make your life easier and make learning more exciting!
Before school
Imagine waking up in the morning, your breakfast machine has already prepared a meal for your family. There is no need to carry heavy schoolbags because all your textbooks, notebooks, and even homework will be in a small magical tablet (平板电脑). As you sit down at the table, your tablet will show you a to-do list (清单) for the day.
On the way to school
Instead of walking to school, you will usually use self-driving cars. They can take you right there. These cars know where to go and can even tell you fun facts about science or history. If the road is busy, you might even take school planes.
At school
The walls of classrooms can turn into big screens for you to watch 10D videos. The school library can “think” and make you feel the “real” environment. When the teacher tells a story about the forest, the trees will “appear” around you. You can smell the flowers and hear the birds singing. You can even feel the raindrops falling on your faces. Lunchtime will be super cool! There might even be a robot cook in the dining hall who prepares healthy and delicious meals just for you.
▲
Your family smart helper knows about your learning needs. They can help you practice reading or math skills in a fun way. You can join clubs like “Robot Builders”. In the clubs, you can make your own robots
that can do housework or play games with you.
A better future is within (在……之内) reach. Scientists and engineers are working hard to make it come true. Soon, life will be more wonderful.
36．What kind of life is this passage about
A．School life. B．Family life. C．Future life. D．Space life.
37．How will you usually go to school according to the passage
A．By car. B．On foot. C．By bus. D．By bike.
38．Where can you feel the “real” environment
A．In the school library. B．In the dining hall.
C．In the classroom. D．In the teachers’ office.
39．Which one can you put in the “ ▲ ”
A．On the playground. B．After school.
C．In school clubs. D．In the classroom.
40．What’s the structure of the passage
A． B． C． D．
C
阅读短文及文后A~E选项，选出可以填入各题空白处的最佳选项，并在答题卡上将该项涂黑。
Do you want to visit Mars(火星) For many years, only astronauts could go there. 41
From 2044 on, our fast, wonderful spaceship, the Martian Express, will take us to Mars. Our travelling from Earth to Mars will take just six weeks. We plan to travel to Mars once every two years, because this is when the two planets are the closest. 42 You’ll stay on Mars for three weeks, and then return to Earth on the spaceship.
43 There you’ll stay in our great hotels. You’ll eat food from our special farms. You’ll hear scientists talking about who live on Mars. You can even try working with them. You’ll enjoy walking around, because the gravity on Mars is weaker than the gravity on Earth. Dancing is great fun on Mars! You can also take a cable car up to the top of Olympus Mons, the tallest mountain on Mars. 44 You’ll be able to get a bird’s-eye view!
Hurry! 45 Soon you’ll be on the way to Mars!
A．Different kinds of activities are waiting for you on Mars.
B．But soon everybody will be able to take a holiday on this planet.
C．It is much higher than the Earth’s tallest mountain.
D．Call us to get a place on the Martian Express NOW!
E．So our next leaving will be in 2046, and you can go.
四、选词填空(本大题共10小题，每小题1.5分，共15分)
阅读短文，从方框中选出恰当的单词并用其适当形式填空，使短文通顺、意义完整。每空仅填一词，每词仅用一次。
although impossible live send fast in one true earth careful
Humans might live on another planet one day! That seemed 46 years ago. But now the idea might come 47 . According to Stephen Hawking, a British scientist, humans only have about 1,000 years to live on the 48 . It means that humans will fly to another planet in 1,000 years.
49 fact, we have found one red planet — Mars (火星). For many years, scientists have studied Mars. Some years ago, they 50 robots there and wanted to find water and life on Mars. Luckily, they found that there was water on it. The idea of living there looks possible. Because of science, the steps to Mars are getting 51 than before.
For example, in 2013, some experts planned the 52 step to take humans to Mars. They offered (提供) people one-way tickets to go and build a new home on Mars. 53 it was dangerous, over 200,000 people still wanted to have a try.
Now experts from other countries are also making plans to get humans to Mars. They are also making preparations 54 to help people get back to the earth. I am looking forward to 55 on Mars. Will you join us
五、书面表达
56．随着科学的进步，社会的发展，未来的生活将会变成什么样子呢？请以“The life in the future”为题写一篇文章，按下列提示完成。
1. 想象一下未来生活会是什么样子；
2. 具体介绍一下未来的生活：很多事情都由电脑和机器人完成。例如：料理家务、购物、看病，孩子们通过网络把课堂搬到家里，人们可以活到200岁等；
3. 为了未来美好的生活，我们现在应该怎么做？80词左右。
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参考答案
一、
1．D
【详解】句意：——这个周末你想和我一起去音乐会吗？——当然。我喜欢听音乐和看歌手表演。
考查名词辨析。cinema电影院；library图书馆；museum博物馆；concert音乐会。根据“listening to music and watching the singers performing.”可知，既能听音乐又能看歌手表演的地方是音乐会。故选D。
2．C
【详解】句意：——有一份给杰克的新工作，但他没有接受它。——也许他有自己的计划。
考查动词辨析。form形成；pass通过；accept接受；miss错过。根据“There is a new job for Jack, but he doesn’t…it.”以及“Maybe he has his own plans.”可知，此处指杰克没有接受新工作。故选C。
3．A
【详解】句意：当我们遇到困难时，老师总是鼓励我们保持积极的心态。
考查形容词辨析。positive积极的；boring无聊的；direct直接的；lazy懒惰的。根据“when we meet difficulties”可知，遇到困难时应保持积极心态，positive“积极的”，符合语境。故选A。
4．B
【详解】句意：——明天还有谁会来参加聚会？——弗雷德。
考查词汇辨析。other其他的，后需接可数名词复数形式；else其他的、别的，常用于疑问词或不定代词之后；another三者或三者以上的另一个，后接单数名词；others其他的人或物，相当于“other+复数名词”。此处“who”是疑问代词，else放在其后表示“其他谁”，符合语境。故选B。
5．D
【详解】句意：——我不知道怎么解这道数学题。我该怎么办？——你可以向老师求助。
考查疑问词+不定式。what什么；when什么时候；where在哪里；how怎样。根据“What can I do ”以及“You can ask your teachers for help.”可知，此处指解决数学题的方式方法，how符合。故选D。
6．B
【详解】句意：——你能告诉我一些关于你在美国的学校生活的事情吗？——当然。它和中国的学校生活很不一样。
考查介词辨析。from来自；about关于；in在……里面；for为了。根据“something ... your school life in the USA”可知，这里需要表达“关于……的事情”，因此about“关于”，符合语境。故选B。
7．B
【详解】句意：——我们什么时候出发去参加聚会？——这取决于交通情况。如果交通拥堵，我们可能需要早点出发。
考查动词短语辨析。waits for等待；depends on取决于，依赖；looks at看；thinks about考虑。根据“If the traffic is heavy, we may need to leave earlier.”可知，出发时间由交通状况决定，depends on“取决于，依赖”，符合语境。故选B。
8．C
【详解】句意：——我不确定能否通过英语考试。——要有信心！只要你每天努力学习，就能通过。
考查连词短语辨析。as soon as一……就……；as well as也，和……一样好；as long as只要，引导条件状语从句；as far as就……而言，远至。根据“You can pass it ... you study hard every day.”可知，“每天努力学习”是“通过考试”的条件，as long as“只要”，引导条件状语从句，符合语境。故选C。
9．A
【详解】句意：——嘿，莉萨！你看起来不高兴。怎么了？——我数学考试又不及格。我不知道该怎么办。
考查情境交际用语。What’s up怎么了，用于询问对方发生了什么事；What’s that那是什么，用于询问事物；How are you你好吗，是常见的问候语；How’s the weather天气怎么样，用于询问天气情况。根据“You look unhappy.”和回答可知，此处是询问对方不开心的原因，What’s up“怎么了”，符合语境。故选A。
10．A
【详解】句意：——你认为世界会和平吗？——我希望如此。这是全人类的共同愿望。
考查情景交际。I hope so.我希望如此；I don’t think so.我不这么认为；I have no idea.我不知道；That sounds great. 那听起来很棒。根据“It’s the common wish of all humans.”可知，世界和平是全人类的共同愿望，“I hope so.”表达了对“世界和平”的积极期望，符合语境。故选A。
11．A
【详解】句意：——张桂梅为女孩们的教育奉献了一生。——她做出了多么伟大的努力啊。
考查名词辨析。service服务；competition竞争；difference差异；date日期。根据“given the lifetime of ... to girls’ education”可知，张桂梅奉献了一生，符合语境的应该是service。故选A。
12．D
【详解】句意：如果Open AI技术使用得当，世界将变得越来越好。
考查动词时态。由“If Open AI technology is used properly”及“the world…better and better.”可知，此处是由if引导的条件状语从句，遵循主将从现原则，主句应用一般将来时，其结构为“will do”。故选D。
13．C
【详解】句意：形成好的阅读习惯对语言的学习很有帮助。
考查动词辨析。show展示；offer提供；develop发展，培养；match匹配。根据“good habit”可知，是指养成好的习惯，故选C。
14．A
【详解】句意：怀特先生到处找他的钥匙，但他在任何地方都找不到它。
考查副词辨析。everywhere到处；anywhere任何地方；somewhere某个地方。根据“Mr White was looking for his key ...”可知第一空表示“到处找”，用“everywhere”；第二空表示“在任何地方都找不到”，否定句中用“anywhere”。故选A。
15．A
【详解】句意：她昨天收到了一份礼物，但她没有接受它。
考查动词词义与时态辨析。receive收到，强调客观上收到某物；received收到，动词过去式；accept接受，强调主观上愿意接受；accepted接受，动词过去式。第一个空根据“yesterday”可知，应用一般过去时，“received”是“receive”的过去式，故第一个空用received。第二个空因为前面有“didn’t”，助动词后接动词原形，故第二个空用accept。故选A。
16．C
【详解】句意：迈克是我们班最有创造力的，因为他经常想出新点子。
考查形容词最高级辨析。most careful最细心的；most outgoing最外向的；most creative最有创造力的；most friendly 最友好的。根据“because he often thinks out new ideas”可知，迈克经常想出新点子，所以他是最有创造力的，most creative 符合语境。故选C。
17．B
【详解】句意：砍伐太多树木使人们保护世界上的野生动物成为不可能。
考查主谓一致和形容词辨析。possible可能的；impossible不可能的；动名词“Cutting down too many trees”作主语时，谓语动词用第三人称单数形式，故排除选项A、C；根据“Cutting down too many trees”可知砍太多树使保护野生动物成为不可能。故选B。
18．B
【详解】句意：这东西在空中飞得很快，很快就消失了。没人知道它是什么。A. appeared出现；B. disappeared 消失；C. arrived到达；D. reached到达。由“very fast”可知，物体快速消失，答案为B。
19．B
【详解】句意：地球上所有的生命都依赖太阳。
考查介词辨析。with和……一起”；on在……上；under在……之下；by通过……方式。根据“All life on earth”可知，所有生命都要依赖太阳。depend on“依赖”。故选B。
20．C
【详解】句意：中国拥有世界上最多的大学毕业生，因此为他们提供工作对政府来说确实是一个挑战。
考查形容词最高级和名词辨析。largest最大的；most最多的；situation情况；competition竞争；challenge挑战；change变化。根据“population”可知此处讲人口数量，应用largest修饰，排除选项B、D；根据“so providing them with jobs is really a…for the government.”可知，应该是”挑战”符合语境。故选C。
二、
21．B 22．A 23．B 24．C 25．D 26．A 27．B 28．D 29．D 30．C
【导语】本文主要介绍了科技发展迅速，人工智能流行并以惊人方式改变生活，在教育等领域应用广泛且让教学更优质高效，虽有科学家认为其未来将更强大，但也有人担忧因此失业，需明白科技有利有弊，我们应利用它改善而非被其控制生活。
21．句意：它们极大地改变了世界，并且成为了我们日常生活中重要的一部分。
strange奇怪的；important重要的；healthy健康的；terrible糟糕的。根据“Science and technology (科技) are developing faster and faster. They change the world a lot”可知，科技快速发展且极大地改变了世界，所以科技成为了我们日常生活中重要的部分，故选B。
22．句意：它正以惊人的方式改变着我们的生活。
changing改变；breaking打破；filling充满；leading带领。根据前文“They change the world a lot”以及提到人工智能很流行，可知人工智能正以惊人的方式改变着我们的生活，故选A。
23．句意：它使得很多事情不再仅仅是梦想。有一天它们可能会实现。
jokes笑话；dreams梦想；questions问题；news新闻。根据“They may come true one day.”可知，以前很多看似不能实现的事情，因为人工智能可能会实现，所以不再仅仅是梦想，故选B。
24．句意：令人惊讶的是，一些学校也在使用人工智能来辅助他们的日常教学。
houses房子；cinemas电影院；schools学校；markets市场。根据“using AI to help with their daily teaching”以及后面举例“teachers can use AI to analyze (分析) students’ performance”可知，是学校在使用人工智能辅助教学，故选C。
25．句意：这样他们就可以使用不同的教学方法来满足不同学生的需求。
feelings感觉；hobbies爱好；wishes愿望；needs需求。根据“use different teaching ways to meet different students’”以及前文提到老师可以用人工智能分析学生表现，可知是为了满足不同学生的需求，故选D。
26．句意：此外，人工智能可以通过回答问题和提供答案来帮助学生解决他们的学习问题，就像一个真正的老师。
teacher老师；student学生；friend朋友；parent父母。根据“help students solve their learning problems by answering questions and providing answers”可知，能帮助学生解决学习问题、回答问题的像真正的老师，故选A。
27．句意：有了人工智能，教学变得更好且更令人愉快。
boring无聊的；enjoyable令人愉快的；correct正确的；difficult困难的。根据“teaching and learning become better and more”可知，此处应填积极意义的词，有了人工智能教学变得更好，所以是更令人愉快，故选B。
28．句意：一些科学家认为人工智能在未来将会变得更强大。
possible可能的；dangerous危险的；colorful多彩的；powerful强大的。根据“It will be able to do almost everything instead of humans.”可知，人工智能几乎能代替人类做所有事情，所以是变得更强大，故选D。
29．句意：他们担心在未来他们可能会失去他们的工作。
get得到；create创造；finish完成；lose失去。根据“because AI can do many things faster and better than humans.”可知，人工智能比人类做得又快又好，所以人们担心会失去工作，故选D。
30．句意：我们可以使用人工智能来改善我们的生活，但我们不能让它控制我们的生活。
leave离开；enter进入；control控制；beautify美化。根据“Every coin has two sides.”以及前文提到人们担心失去工作等内容，可知我们不能让人工智能控制我们的生活，故选C。
三、
31．D 32．D 33．C 34．B 35．A
【导语】本文记录了四名学生课后关于未来的讨论，他们分别畅想了2050年及以后的生活。
31．主旨大意题。根据“Four students are talking about the future after class”及后文对2050年生活、科技、环境等的畅想可知，四人讨论的是未来的生活。故选D。
32．推理判断题。根据“In 2050, China will be much richer tha n it is now. Shanghai will be ready for the 40th Olympic Games in 2052. The sky will be bluer and cleaner and the air will be fresher.”可知，第一段描述2050年中国更富裕、上海可能举办奥运会、环境更优（天空更蓝、空气更新鲜），空格处应延续“美好未来”的主题，选项D符合语境。故选D。
33．词义猜测题。根据“We might eat something like pills instead of today’s meals.”可知，我们可能会吃类似药片的东西来代替现在的食物。“pills”意为“药片”，与“medicine”相近。故选C。
34．理解理解题。根据第四段“cloning will be used in many ways. It will bring back animals... We’ll live a much easier and better life”可知，张兰认为克隆技术会有很多用途。故选B。
35．观点态度题。学生们畅想未来中国更富裕、环境更好、科技进步（星际旅行、机器人、克隆技术）、生活更美好，整体态度是积极乐观的。故选A。
36．C 37．A 38．A 39．B 40．C
【导语】本文是一篇说明文，文章主要预测了未来学生的生活。
36．细节理解题。根据“In the near future, your life will be full of more amazing technologies.”可知本文讲的是未来生活，故选C。
37．细节理解题。根据“Instead of (代替) walking to school, you will usually use self-driving cars.”可知未来会坐自动驾驶车去学校，故选A。
38．细节理解题。根据“The school library can ‘think’ and make you feel the ‘real’ environment.”可知在图书馆能感受到“真实的”环境，故选A。
39．推理判断题。根据小标题“Before school”“On the way to school”“At school”可知接下来要讲放学后的生活，且根据“Your family smart helper knows about your learning needs. They can help you practice reading or math skills in a fun way. You can join clubs like...”可知，接下来介绍的是课后的生活，故选B。
40．篇章结构题。文章第一段是引出话题，第二、三、四、五段分别说明学生不同时段的未来生活，最后一段总结，故是总分总结构，故选C。
41．B 42．E 43．A 44．C 45．D
【导语】本文主要介绍未来人们去火星旅行以及在火星生活的情况。
41．根据“Do you want to visit Mars(火星) For many years, only astronauts could go there.”可知，你想参观火星吗？多年来，只有宇航员才能去那里。此处介绍以前只有宇航员能去，选项B“但很快，每个人都可以在这个星球上度假。”符合语境，故选B。
42．根据“We plan to travel to Mars once every two years, because this is when the two planets are the closest.”可知，我们计划每两年去一次火星，因为这是两颗行星最近的时候。此处介绍下次火星旅行的情况，选项E“所以我们下次离开是在2046年，你可以去了。”符合语境，故选E。
43．根据“There you’ll stay in our great hotels. You’ll eat food from our special farms. You’ll hear scientists talking about who live on Mars. You can even try working with them. You’ll enjoy walking around, because the gravity on Mars is weaker than the gravity on Earth. Dancing is great fun on Mars! You can also take a cable car up to the top of Olympus Mons, the tallest mountain on Mars.”可知，此处介绍火星上的一些活动，选项A“火星上有各种各样的活动等着你。”符合语境，故选A。
44．根据“You can also take a cable car up to the top of Olympus Mons, the tallest mountain on Mars.”可知，你也可以乘坐缆车到奥林匹斯山的山顶，那是火星上最高的山。此处提到高山，选项C“它比地球上最高的山高得多。”符合语境，故选C。
45．根据“Hurry! ... Soon you’ll be on the way to Mars!”可知，让你赶快预订位置，选项D“现在就打电话给我们，让我们在火星快车上占有一席之地！”符合语境，故选D。
四、
46．impossible 47．true 48．earth 49．In 50．sent 51．faster 52．first 53．Although 54．carefully 55．living
【导语】本文是一篇说明文，主要介绍了人类未来可能居住在火星上的计划和准备。
46．句意：这在几年前似乎是不可能的。根据“Humans might live on another planet one day!”及“years ago”可知，此处指几年前人类居住在另一个星球上是不可能的，impossible“不可能的”，符合语境。故填impossible。
47．句意：但现在这个想法可能会成真。根据“But now the idea might come…”可知，此处指但现在这个想法可能会成真，true“真实的”，符合语境。故填true。
48．句意：根据英国科学家斯蒂芬·霍金的说法，人类只能在地球上生活大约1000年。根据“According to Stephen Hawking, a British scientist”及常识可知，此处指人类只能在地球上生活大约1000年，earth“地球”，符合语境。故填earth。
49．句意：事实上，我们已经发现了一个红色星球——火星。根据“we have found one red planet — Mars”可知，此处指事实上，in fact“事实上”，固定短语，符合语境。故填In。
50．句意：几年前，他们向那里发送了机器人，并想在火星上找到水和生命。根据“robots there”可知，此处指发送机器人到火星，send“发送”，动词，根据“Some years ago”可知，此处用一般过去时，send的过去式是sent。故填sent。
51．句意：由于科学，通往火星的步伐比以前更快了。根据“than before”可知，此处用比较级，fast“快的”，形容词，其比较级是faster“更快的”。故填faster。
52．句意：例如，2013年，一些专家计划第一步将人类送往火星。根据“to take humans to Mars”及“the…step”可知，此处指第一步将人类送往火星，first“第一”，序数词，符合语境。故填first。
53．句意：尽管这很危险，但仍有超过20万人想试一试。根据“it was dangerous”及“over 200,000 people still wanted to have a try”可知，前后句之间为让步关系，although“尽管”，引导让步状语从句，符合语境。故填Although。
54．句意：他们也在仔细地做准备，以帮助人们回到地球。根据“They are also making preparations…”可知，此处指他们也在做准备，此处修饰动词making preparations用副词carefully“仔细地”，符合语境。故填carefully。
55．句意：我期待在火星上生活。根据“I am looking forward to…”可知，此处指我期待在火星上生活，look forward to doing sth.“期待做某事”，固定短语，living“居住”，动名词，符合语境。故填living。
五、
56．例文
The life in the future
In the future, life will be very different from what it is today. With the development of science and society, many things will change for the better.
Imagine a world where computers and robots do most of the work. They will take care of our houses, do the shopping, and even help us see doctors. Children won’t need to go to school. They can study at home through the Internet. What’s more, because of medical advances, people may live to be 200 years old!
To enjoy such a wonderful life in the future, we need to work hard now. We should study science and technology to make these dreams come true. At the same time, we must learn to use technology wisely and protect our environment. Only in this way can we ensure a bright future for ourselves and generations to come.
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