Lesson 26
【课时衔接】
一、用方框中所给单词的适当形式填空
force, method, pressure, correct
1.I don't know which answer is .
2.Don't give your child too much on study.
3.Sometimes we can't imagine the of the air.
4.I think we should try his of organizing the work.
【基础通关】
二、用所给单词的适当形式填空
5.Five (six) of the books are written in Chinese.
6.He (light) the candle just now.
7.The twin brothers always keep (argue) about what TV programmes to watch.
8.We can use (match) to light the candles.
三、单项选择
( )9.—You look so tired. What's wrong
—I didn't go to bed I finished watching In the Name of People last night.
A.until B.if
C.though D.unless
( )10. of the land in that town covered with trees and grass.
A.Two fifth; is
B.Two fifth; are
C.Two fifths; is
D.Two fifths; are
( )11.The girl kept the text until she can recite it.
A.read
B.to read
C.reading
D.reads
【素养提升】
四、阅读理解
Let's learn how to make a rainbow with this fun science experiment! Using just a few things, you can find out how rainbows work.
What you need: ◆A triple prism (三棱镜) ◆A piece of white paper rainbow ◆A sunny day
Instructions: Take the triple prism and white paper to a room with sunlight. Hold the triple prism beside the paper. Watch as sunlight passes through the triple prism, is refracted (折射) and forms a rainbow of colors on the paper. Hold the triple prism at different heights and angles (角度) to see the effect.
What's happening: Rainbows appear in the sky when sunlight is refracted as it passes through raindrops. Sunlight acts in the same way when it passes through a triple prism. It is divided into the colors red, orange, yellow, green, blue, indigo and violet.
( )12.What is NOT needed in the experiment
A.A sunny day.
B.A triple prism.
C.A piece of white paper.
D.A ball pen.
( )13.Where do we hold the triple prism according to the instructions
A.Under the paper.
B.In front of the paper.
C.Beside the paper.
D.Behind the paper.
( )14.When do rainbows appear in the sky
A.When sunlight is refracted as it passes through raindrops.
B.When sunlight passes through a triple prism.
C.When a room is full of sunlight.
D.When the sky is blue.
2
参考答案
Lesson 26
课时衔接
1.correct 2.pressure 3.force 4.method
基础通关
5.sixths 6.lit 7.arguing 8.matches
9.A 10.C 11.C
素养提升
12.D 细节理解题。根据第一栏“What you need”的内容可知,没有提到A ball pen。故选D。
13.C 细节理解题。根据第二栏中“Hold the triple prism beside the paper.”可知选C。
14.A 细节理解题。根据第三栏中“Rainbows appear in the sky when sunlight is refracted as it passes through raindrops.”可知选A。
2Unit 5 Review
【课时衔接】
一、根据句意及汉语提示填写单词
1.Their opinions will not (影响) my decision.
2.He (建议) taking the children to the zoo.
3.With the (发展)of economy, my hometown is becoming more and more beautiful.
4.Scientists have made many important (发现) since last century.
【基础通关】
二、单项选择
( )5.We should look up to those scientists sent Tianzhou-1 Cargo Spaceship (天舟一号货运飞船) to space.
A.which B.who
C.what D.they
( )6.Lily loves music she can sing along with.
A.which B.who
C.what D.whom
( )7.A kind of shared bike is called bluegogo is getting more and more popular in Chengdu.
A.it B.who
C.which D.what
【素养提升】
三、完形填空
On Oct. 16, 2016,Chinese astronauts of the Shenzhou-11, Jing Haipeng and Chen Dong, met the Press (新闻发布会) on Sunday ahead of Monday's launch.
Sitting under a national flag, the astronauts 8 in good spirits and answered several questions.
“ 9 the job is challenging, risky and dangerous, there is nothing more I would rather do,” Jing Haipeng, 50, who is the commander of this mission, told reporters. It will be Jing's 10 spaceflight following his Shenzhou-7 mission in September 2008 and Shenzhou-9 mission in March 2012.
On Monday, China successfully launched (发射) spacecraft Shenzhou-11 carrying the two astronauts who will remain in space for 33 days. The spacecraft was sent up at the Jiuquan Satellite launch Center in 11 China's Gobi desert at 7:30 a. m. Beijing time Monday with a Long Maxch-2F YII carrier rocket.
The spacecraft has entered its designed orbit(轨道). The launch 12 a success by Zhang Youxia, about 19 minutes after the blast-off (发射). Three weeks before the task, the family members of Jing Haipeng and Chen Dong still knew nothing. Chen Dong has been a(n) 13 for many years before joining the space team. He and his wife now have a pair of five-year-old twin sons. One-month mission is not the longest time that Chen 14 away from home. When he was pilot, he once did not come back home for half a year during a mission.
Chen Dong described the experience as “no seeing, no 15 . ” But with the help of Virtual Reality(虚拟现实)(VR) technology, astronauts will meet their family during free time. “If I see them (family members),it will be different somehow, ” Chen said.
For Jing, he looks very calm. In his first space mission in ShengzhouⅦ,his wife was so nervous 16 she almost did not sleep during three days. Now that it is his third time, his wife has 17 it.
( )8.A.met B.came C.appeared D.stood
( )9.A.Until B.Although C.Because D.But
( )10.A.first B.second C.third D.fourth
( )11.A.northwest B.southwest C.northeast D.southeast
( )12.A.was told B.was announced C.was spoken D.was said
( )13.A.astronaut B.engineer C.pilot D.scientist
( )14.A.has stayed B.left C.has left D.stayed
( )15.A.listening B.watching C.noticing D.missing
( )16.A.who B.which C.when D.that
( )17.A.got used to B.used to C.been used for D.been used by
四、阅读理解
Nie Haisheng once dreamt that he had two big wings and flew on the back of a cow in the sky when he was a child. In 2021, together with two teammates, Nie Haisheng flew to space to carry out his third space task. He lived and worked in the Tianhe core module (核心舱) from June 17th to September 17th.
Born in Hubei Province in 1964, Nie Haisheng comes from a poor family. When he was a little boy, he lived in the village with his six sisters and a brother. They usually did farm work. Nie Haisheng has showed a deep love for planes and has read a lot of books since he was a child.
After graduating from high school, Nie Haisheng joined the army and was trained to be a fighter pilot (战斗机飞行员). Once in 1989, his plane broke down when he was flying and he nearly lost his life. In 1998, Nie Haisheng joined China's first team of astronauts, receiving much tougher (更严厉的) training. On October 12th, 2005, Nie Haisheng went into space with Fei Junlong for the first time in Shenzhou VI spacecraft. In 2013, Nie Haisheng went into space for the second time in Shenzhou X spacecraft together with two teammates, and successfully completed his task. Nie Haisheng's success came from his hard work. He once practised for a task more than 2 000 times.
As one of China's most experienced astronauts, Nie Haisheng is spoken highly of by his workmates. Yang Liwei, China's first astronaut who went into space, described Nie Haisheng as a brave, careful and patient astronaut. Wang Yaping once said, “Nie Haisheng is strict with himself. Because of him, we have nothing to worry about.”
“The oldest astronaut in the world to travel in space was 77 years old, so I am still young,” Nie Haisheng said. “I'm looking forward to more space challenges.”
( )18.How many children are there in Nie Haisheng's family
A.Six. B.Seven.
C.Eight. D.Ten.
( )19.What's the fourth paragraph mainly about
A.Nie Haisheng's family.
B.Nie Haisheng's experiences.
C.Nie Haisheng's life.
D.Nie Haisheng's character.
( )20.What can we know about Nie Haisheng
A.Nie Haisheng stayed in the Tianhe core module for 4 months.
B.Nie Haisheng was born in Hubei Province.
C.Nie Haisheng has been to space twice with his teammates.
D.Nie Haisheng is the oldest astronaut in the world that has traveled in space.
( )21.Put the things that happened to Nie Haisheng in the correct order.
a.Nie Haisheng joined the army and was trained to be a fighter pilot.
b.Nie Haisheng went into space with Fei Junlong for the first time in Shenzhou VI spacecraft.
c.He lived in the village with his family.
d.He went into space for the second time in Shenzhou X spacecraft.
e.Nie Haisheng joined China's first team of astronauts.
A.c-b-a-d-e
B.c-a-e-b-d
C.b-c-e-d-a
D.c-e-b-d-a
( )22.The passage is probably from a magazine about .
A.art B.medicine
C.people D.history
2
参考答案
Unit 5 Review
课时衔接
1.affect 2.suggests 3.development
4.discoveries
基础通关
5.B 6.A 7.C
素养提升
8.C 考查动词的辨析。结合句意可知他们显得精神很好。appear in good spirit“显得精神状态好”。故选C。
9.B 考查连词的辨析。句意:虽然这项工作具有挑战性,冒险性和危险性,但是我没有其他更愿意做的事情了。故选B。
10.C 考查数词的辨析。根据下文介绍了两次的飞行,可知这是他第三次进入太空。故选C。
11.A 考查方位词的辨析。酒泉卫星发射中心位于我国西北部。故选A。
12.B 考查动词词义的辨析。结合语境可知是“宣布了发射成功”。announce意为“宣布”,故选B。
13.C 考查名词辨析。根据本段最后一句“When he was pilot”可知,他以前是个飞行员。故选C。
14.A 考查动词时态的辨析。根据时间状语“for many years”可知为现在完成时态且使用延续性动词。故选A。
15.D 考查语境。结合语境可知为“见不到,也不想”。故选D。
16.D 考查连词的用法。句意:他的妻子如此紧张以至于在那三天她几乎整夜睡不着。so...that意为“如此……以至于”,故选D。
17.A 考查固定短语的用法。句意:现在是他第三次上太空,他的妻子已经习惯了。get used to意为“习惯于”。故选A。
18.C 19.D 20.B 21.B 22.C
2Lesson 27
【课时衔接】
一、根据句意及汉语提示填写单词
1.He can only swim in a (浅的) river.
2.There is a (打火机) in his pocket.
3.There is a shortage of (氧气) at the top of the mountain. We can't breathe as usual.
4.He bought a packet of cigarettes and a box of (火柴) in the store.
【基础通关】
二、根据汉语意思完成句子(每空一词)
5.这个杂志一个月出一期。
The magazine once a month.
6.《红船精神:启航的梦想》这本书很流行,我们大部分人都认为它值得一看。
The book Red Boat Spirit: Sailing Dream is so popular that most of us think it is .
7.即使明天下雨,我们也决不改变计划。
it rains tomorrow, we won't change our plan.
8.你不能带走不属于你的东西。
You can't take the things away that don't you.
【素养提升】
三、阅读理解
The sun is always shining. But it can only shine on one side of the earth at one time. When the sun is shining on one side of the earth, it is night on the other side.
At night, you can see the stars. The stars are in the sky all day. But the light from the sun is so bright that you can't see them. When night comes, there is no light, and the stars are bright enough to see. The stars look very small. But some of them are even bigger than the sun. They look small because they are so far away from you. Big things look much smaller when they are far away. The sun is closer to the earth than other stars, so it looks bigger.
( )9.When it is night, the sun .
A.doesn't shine
B.shines for a short time
C.disappears
D.shines on the other side of the earth
( )10.The stars look small because .
A.they are far away
B.they are small
C.they have no light
D.they are in the sky
( )11.Small things may look when they are close.
A.bigger B.small
C.near D.far away
( )12.The sun looks bigger than other stars because .
A.it's bigger
B.it's far away in the sky
C.it gives much bright light
D.it's closer to the earth than other stars
2
参考答案
Lesson 27
课时衔接
1.shallow 2.lighter 3.oxygen 4.matches
基础通关
5.comes out 6.worth reading 7.Even if
8.belong to
素养提升
9.D 细节理解题。根据文中“When the sun is shining on one side of the earth, it is night on the other side.”可知选D。
10.A 细节理解题。根据“They look small because they are so far away from you.”可知答案。
11.A 推理判断题。根据“Big things look much smaller when they are far away.”可推断,小的事物离得近看起来就大。故选A。
12.D 细节理解题。根据“The sun is closer to the earth than other stars, so it looks bigger.”可知答案。
2Lesson 25
【课时衔接】
一、根据句意及汉语提示填写单词
1.Tom answered the question with a (故事).
2.He is a man with a double (特点).
3.What is the next (情节)
4.Mr. Jones is a (幽默的) man. He likes telling jokes.
【基础通关】
二、用方框中所给单词的适当形式填空,可重复使用
fill, full, invent, discover
5.He often his bag with the books.
6.The rooms are with the students.
7.My pocket is of money.
8.Who the truth
9.Computers were in 1946.
三、根据汉语意思完成句子(每空一词)
10.这些外国人把篮子里装满了水果。
The foreigners the basket fruit.
11.把你的被子反过来,晒晒太阳。
your quilt and dry it in the sun.
12.Lucy,请给你的叔叔倒茶。
Lucy, please the tea for your uncle.
【素养提升】
四、阅读理解
Have you ever rubbed (搓) your hands together when they get cold Why do we do that We do that for friction. Friction happens when two things that aren't very smooth rub together to make heat energy. The faster you rub two things together, the more friction (and heat) you can make. Let's discover friction!
WHAT YOU'LL NEED:
●Soap ●Water ●Your hands!
WHAT TO DO:
1.Make sure your hands are dry.
2.Rub your hands together until you feel the heat of your hands.
3.Now, use soap and water to get your hands very slippery (滑的).
4.Try to make friction happen while your hands are slippery.
5.Please write down what has happened.
LET'S TALK!
Friction can produce energy that happens when two things rub together. When friction happens, it makes heat! When your hands are slippery, they won't make very much friction and your hands won't get so hot.
DID YOU KNOW
1.Friction happens when you stop your fast running bike.
2.Ancient people made fires by rubbing two pieces of wood together. Friction happened though they didn't know it.
Friction is everywhere. Have you ever noticed situations where friction is happening If not, ask your parents to take you out in a car. If it is not too hot, touch the tires (轮胎) of the car before and after a short drive to see how much warmer they get from friction.
( )13.You'd better make your hands to get heat when you rub them.
A.slippery B.dry
C.wet D.smooth
( )14.What does the underlined word “friction” in this text mean in Chinese
A.摩擦 B.冷却
C.膨胀 D.震动
( )15. is NOT an example of friction.
A.Bike riding
B.Car driving
C.Hands rubbing
D.Friction discovering
( )16.This text is most probably .
A.a science report
B.a car advertisement
C.a rubbing introduction
D.a chemistry programme
2
参考答案
Lesson 25
课时衔接
1.tale 2.characters 3.plot 4.humorous
基础通关
5.fills 6.filled 7.full 8.discovered
9.invented 10.filled with
11.Turn upside down 12.pour out
素养提升
13.B 细节理解题。由WHAT TO DO中的前两条的描述可知答案为B。
14.A 词义猜测题。根据上下文内容可推测,friction意为“摩擦”。
15.D 细节理解题。本题是询问哪一项不是有关摩擦的例子。A、B、C项文中都有提到。故选D。
16.A 推理判断题。本文是关于摩擦的实验报告,故选A。
2Lesson 29
【课时衔接】
一、根据句意及汉语提示填写单词
1.Although Ye Shiwen is so young, she is a (了不起的) swimmer.
2.My favourite subject is (生物). It's so interesting.
3.It was (令人费解的) that Lucy didn't pass the exam.
4.The old couple have several (外孙).
【基础通关】
二、连词成句
5.story, to, the, related, Second World War, the, is
.
6.good, is, he, a, except, man, temper, for, hot
.
7.can, problems, for, scientists, it, look, health, in
.
8.DNA, the, with, knew, these, scientists, questions
.
【素养提升】
三、阅读理解
DNA is the whole “map” of the human body. It is something that all humans have, and it tells the body what to do. DNA is the reason that we look like our parents, because we get some of their DNA to make our own.
People have been trying to understand the human body for a long time. In 1860, Mr. Mendel discovered why we look the same as other people in our family. It is because of small things called “genes” (基因) in our body. In 1953, two scientists, Watson and Crick, found out that those small parts are really messages. They're written in the DNA with a special language.
In 1961, another two scientists found the first “word” that they could understand in that language. It shows how DNA tells the cell (细胞) to build its parts, so far scientists have found all the words in the DNA map, but we still do not understand what they all do. By understanding what just one “word” means, we can help to save people from several illnesses. So the more we understand, the more doctors will be able to do.
Most people hope that this will help to make better medicine and save sick people; Other people worry that when we learn more “words” and find out more information, we will use it in the wrong way, just to make people more attractive (有吸引力的), or stop sick people getting jobs.
( )9.When did Mr. Mendel discover why we look the same as other people in our family
A.In 2000. B.In 1961.
C.In 1953. D.In 1860.
( )10.What did the two scientists find in 1961
A.All the words in the DNA map.
B.Small things called “genes” in our body.
C.The first “word” they could understand in that language.
D.Those small parts are written in the DNA with a special language.
( )11.How can we help sick people if we understand more “words” in the DNA map
A.Make better medicine.
B.Make them get jobs.
C.Make maps for them.
D.Make them attractive.
( )12.What do people think about this research about DNA
A.It can be only bad.
B.It can be only good.
C.It can be good but won't work.
D.It can be good or bad.
2
参考答案
Lesson 29
课时衔接
1.fantastic 2.biology 3.puzzling 4.grandsons
基础通关
5.The story is related to the Second World War
6.He is a good man except for hot temper
7.Scientists can look for health problems in it
8.The scientists knew these questions with DNA
素养提升
9.D 根据“In 1860, Mr. Mendel discovered why we look the same as other people in our family.”可知选D。
10.C 由“In 1961, another two scientists found the first ‘word’ that they could understand in that language.”可知选C。
11.A 理解四个选项,只有A项与帮助弱势的人有关系。
12.D 根据最后一段中“Most people hope...; Other people...”可推断出D项表达的是正确的。
2Lesson 30
【课时衔接】
一、根据句意及汉语提示填写单词
1.Would you like to (重复) your question
2.Please read the (说明) on the box before using it.
3.Everyone else in my class was invited (除了) me, and I don't know why.
4.The two brothers look the same. Maybe they are (双胞胎).
【基础通关】
二、用方框中所给单词的适当形式填空
discover, affect, suggest, develop
5.Jenny them using a stronger piece of cardboard for the experiment.
6.The air pressure the result of the experiment.
7.The experiment led to a wonderful .
8.What are your plans for the of your company
【素养提升】
三、阅读理解
China has been famous around the world since ancient times. In the past, we had the Four Great Inventions. Nowadays, more inventions and creations have made China stronger and greater in the world.
On May 5th, 2017, at Shanghai Pudong International Airport, China's first large homemade jet airliner (喷气式客机), the C919, took off successfully for the first time. It has taken about ten years, for the scientists and researchers to make this Chinese dream come true. It's a pride of the whole nation. So far, more than 23 companies have already ordered 570 C919 planes from China. But we still have a long way to go before the C919 carries passengers by 2020. It also faces the challenge of competing with the Airbus A320 and the new Boeing B737.
What's more, China is working on the new high-speed trains with the highest speed of 400 km/h. It will be ready by 2020. The new trains are exported to push area cooperation (合作) and create new business for China and foreign countries. Many countries, especially the ones in Central Asia, Southeast Asia, the Middle East and Eastern Europe, are planning to build high-speed rail lines or to improve their railways with the help of China. They'd like to get support in technology from China.
China has made great progress in both science and technology. And it makes a great contribution (贡献) to humans, too. All of these are changing the daily life of Chinese people, even of the people around the world.
( )9.The C919 will have a competition with and the new Boeing B737.
A.the Airbus A320
B.the Boeing B777
C.the Airbus A380
D.the Boeing B787
( )10.From the passage, we know that many countries in are planning to build high-speed rail lines or to improve their railways.
①Southeast Asia
②North America
③Eastern Europe
④Central Asia
⑤South America
⑥the Middle East
A.①③④⑤
B.①③④⑥
C.②③⑤⑥
D.②④⑤⑥
( )11.Which of the following is TRUE according to the passage
A.Over 32 companies ordered 570 C919 planes from China.
B.Successfully, the C919 took off for the first time on May 5th, 2017.
C.Many countries in Central Asia help China build high-speed rail lines.
D.The high-speed trains with the speed of 400 km/h can carry more passengers.
( )12.The passage mainly wants to tell us .
A.the Chinese scientists are better at science and technology than before
B.the Four Great Inventions make China strong and great in the world
C.China has increased the international influence with its development
D.China has produced the new high-speed trains with the speed of 400 km/h
2
参考答案
Lesson 30
课时衔接
1.repeat 2.instruction 3.except 4.twins
基础通关
5.suggests 6.affects 7.discovery
8.development
素养提升
9.A 细节理解题。根据第二段的最后一句“It also faces the challenge of competing with the Airbus A320 and the new Boeing B737.”可知和我们竞争的飞机类型。故选A。
10.B 细节理解题。根据第三段的倒数第二句“Many countries, especially the ones in Central Asia, Southeast Asia, the Middle East and Eastern Europe, are planning to build high-speed rail lines or to improve their railways with the help of China.”可知,有中亚,东南亚,中东和东欧地区有这种计划。故选B。
11.B 推理判断题。根据第二段的第一句“On May 5th, 2017, at Shanghai Pudong International Airport, China's first large homemade jet airliner (喷气式客机), the C919, took off successfully for the first time.”可知选B。
12.C 主旨大意题。本文介绍了中国近年来在科技方面的重大发展。文章首先介绍了中国飞机C919的试飞成功,然后介绍了中国高铁的发展,以及一些发展中国家希望得到中国在高铁方面的技术支持,展示了中国的发展对世界产生了更大的影响力。故选C。
2Lesson 28
【课时衔接】
一、根据句意首字母或汉语提示填写单词
1.We shall (肯定) win the match.
2.The house is (值) a lot of money.
3.Don't ask me to explain the question u you really don't understand.
4.According to the research, the total output is d that of last year.
【基础通关】
二、用方框中所给单词或短语的适当形式填空
cut down, fantastic, draw...attention,
butterfly, complete
5.Look! There are many among the flowers.
6.If you the tree, you would do harm to the environment here.
7.The flowers are .
8.I forgot about it.
9.The stranger the policemen's .
【素养提升】
三、阅读理解
Monarch butterflies from eastern Canada make the most amazing journey in the insect world. Each year, this butterfly travels about 3 000 miles to its winter home in central Mexico (墨西哥). How can it fly so far And why does it make this long and dangerous trip Scientists still don't have an answer.
For many years, people in Mexico wondered where the orange-and-black butterflies came from every winter. Then, in 1937, a scientist started to follow and study the butterflies. For the next 20 years, he discovered that one butterfly started its journey in Canada. Four months later, it arrived in Mexico.
The length of the butterflies' trip is only one part of the mystery. Another amazing thing is that the butterflies always return to the same area in central Mexico.
How do the butterflies find their way back to the same place This is an interesting question because only every fourth generation (代) makes the trip south. In other words, the butterfly that travels to Mexico this year is the great-great-grandchild of the butterfly that traveled there last year.
Each year, four generations of a Monarch butterfly family are born. Each generation of the family has a very different life. The first generation is born in the south in late April. It slowly moves north, reproduces (繁衍), and then dies. Each generation of butterflies is to be born, reproduce and die. Each of these generations of butterflies lives for only two or five weeks. In the autumn, the fourth generation of butterflies is born. This generation has a much longer life. It lives for about eight months. This generation of butterflies makes the amazing journey back to the winter there, and in the spring it reproduces and then dies. Their offspring will be the first generation of the next circle of life.
Today, people are still studying the Monarch butterflies. But they are not clear about everything.
( )10.The best title of the passage can be .
A.Family of Monarch Butterflies
B.Mystery of Monarch Butterflies
C.Monarch Butterflies' Birthplace
D.Monarch Butterflies' Winter Home
( )11.It took the scientist to find out that Monarch butterflies came from Canada.
A.20 years B.four months
C.five weeks D.eight months
( )12.We know that the generation of Monarch butterflies travel back to central Mexico.
A.first B.second
C.third D.fourth
( )13.The underlined word “offspring” in the passage is closest to in meaning.
A.seasons B.butterflies
C.children D.parents
( )14.Which statement is true according to the text
A.Monarch butterflies spend winter in eastern Canada.
B.Four generations have the same length of life.
C.Some generations die on the way north of Canada.
D.Scientists are clear about everything of the butterflies.
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参考答案
Lesson 28
课时衔接
1.certainly 2.worth 3.unless 4.double
基础通关
5.butterflies 6.cut down 7.fantastic
8.completely 9.drew attention
素养提升
10.B 主旨大意题。本文主要介绍一种神秘的黑脉金斑蝶 (Monarch butterflies)。
11.A 细节理解题。根据文章第二段中的“For the next 20 years, he discovered that one butterfly started its journey in Canada.”可知选A。
12.D 细节理解题。根据文章第五段中的“In the autumn, the fourth generation of butterflies is born. This generation has a much longer life. It lives for about eight months. This generation of butterflies makes the amazing journey back to the winter there...”可知选D。
13.C 词义猜测题。根据“Their offspring will be the first generation of the next circle of life.”可知它们的后代将是下一个生命轮回的第一代。故offspring的含义为“子孙,后代”。
14.C 推理判断题。A选项意为“黑脉金斑蝶在加拿大东部过冬。”根据文章第一段中“Each year, this butterfly travels about 3 000 miles to its winter home in central Mexico(墨西哥).”可排除选项A;B选项意为“四代有着相同时间的寿命。”根据文章第五段中的“In the autumn, the fourth generation of butterflies is born. This generation has a much longer life.”可知选项B是错误的;综合第五段文意,可知四代黑脉金斑蝶长途迁徙中,不断地繁衍,死去。故选项C是正确的;选项D意为“科学家们对黑脉金斑蝶的一切都很了解”,根据文章最后一段可知是错误的。
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