内容正文:
Unit 7 Space exploration
单元测试卷
班级:________ 姓名:________ 得分:________
一、选词填空(共 10 小题,每小题 1 分,满分 10 分)
从方框中选择恰当的词或短语,并用其适当形式填空,每词限用一次。
impossible, progress, radiation, explore, challenge,
similar, possibility, give up, recognize, unlikely
1. With new technology, scientists have made great ______ in space travel.
2. It is ______ for humans to live on Mars without special protection now.
3. Many planets have environment not ______ to the Earth at all.
4. Too much ______ in space is harmful to astronauts’ health.
5. There is a ______ that humans will build bases on Mars one day.
6. It is ______ for people to move to Mars in less than ten years.
7. Never ______ your dream if you really want to be an astronaut.
8. Astronauts face lots of physical and mental ______ in their work.
9. Scientists keep ______ the universe to find more secrets.
10. People ______ the great astronaut for his great contributions.
二、用所给词的适当形式填空(共 10 小题,每小题 1 分,满分 10 分)
1. It’s necessary for us ______ (learn) more knowledge about space.
2. The low temperature on Mars makes human life ______ (possible) at present.
3. He is one of the famous ______ (astronaut) in our country.
4. The ______ (temperate) on Mars is much lower than that on Earth.
5. We should try our best ______ (solve) the problems of space junk.
6. Nothing can stop us from ______ (explore) the outer space.
7. It ______ (take) astronauts a long time to train before space tasks.
8. Many young people look forward to ______ (live) on other planets.
9. The scientist thinks it is ______ (like) to find real life on Mars.
10. The government has paid much attention to space ______ (develop).
三、阅读理解 A(共 4 小题,每小题 2 分,满分 8 分)
A
Living in space is quite different from living on Earth. Astronauts have to get used to weightless environment. They can’t walk as we do on Earth; instead, they float everywhere.
Their daily life is well planned. They get up, eat meals, do experiments and exercise on time. Exercising is very important. Without gravity, their muscles will become weak easily, so they must exercise for hours every day to keep healthy.
Eating in space is also special. All the food is specially prepared. Some food is dried, and some is packed in small bags. They can’t eat food that may produce small pieces, because the pieces will float around and influence the equipment.
Sleeping is not easy either. Astronauts must sleep in fixed sleeping bags, or they will float around the room during sleep. Though space life is hard and full of challenges, many astronauts still love their job and enjoy the beautiful view of the Earth from space.
1. What is the main difference of space life?
A. No fresh food B. Weightless environment
C. No time to rest D. Too much homework
2. Why do astronauts exercise every day?
A. To kill time B. To lose weight
C. To keep muscles strong D. To enjoy fun
3. What kind of food can’t astronauts eat in space?
A. Dried food B. Food with small easy-falling pieces
C. Packed food D. Special space food
4. Which of the following is TRUE?
A. Astronauts can walk freely in space.
B. Astronauts sleep in common beds.
C. Space life has no challenges at all.
D. Astronauts follow a strict daily plan.
四、完形填空(共 10 小题,每小题 1 分,满分 10 分)
阅读短文,从 A、B、C、D 四个选项中选出最佳选项。
Space exploration has become an important part of modern science. More and more countries are trying to send spacecraft into space and learn more about the universe.
At first, people knew 1______ about other planets. They could only watch the stars and planets with simple telescopes. As time went by, modern technology 2______ quickly. Scientists began to send unmanned spacecraft to fly close to planets.
These spacecraft can take photos, collect information and send 3______ back to Earth. They help scientists know the temperature, air and environment of different planets.
Mars is one of the most 4______ planets for scientists. It is close to Earth and has many similar conditions. Many missions have been sent to Mars. Some rovers have landed on its surface and 5______ around to study the land and rocks.
Space exploration is not 6______. It costs lots of money and needs top scientists. There are also many 7______ and unknown risks. However, no one wants to 8 ______up researching space.
Humans always have a dream to leave Earth and step into the universe. Maybe one day, we can travel to other planets just like traveling to 9______ cities. The road is long, but our steps of exploration will never 10______.
1. A. little B. much C. many D. few
2. A. fell B. developed C. stopped D. disappeared
3. A. mistakes B. problems C. messages D. wishes
4. A. boring B. interesting C. dangerous D. meaningless
5. A. walk B. swim C. fly D. move
6. A. easy B. hard C. strange D. difficult
7. A. chances B. challenges C. games D. holidays
8. A. give B. stand C. get D. wake
9. A. other B. another C. the other D. others
10. A. turn B. start C. stop D. begin
五、五选四(共 4 小题,每小题 2 分,满分 8 分)
根据短文内容,从 A—E 中选出能填入空白处的最佳选项,有一项为多余选项。
The Future of Space Travel
Space travel is no longer just a dream for humans. 1______ More common people may have the chance to go into space in the future.
Now some private companies are working hard to develop space planes. 2______ They aim to make space travel cheaper and safer for ordinary people.
Living on other planets is also a hot topic. Mars is the first choice. 3______ It has seasons and a day length similar to Earth’s. Scientists are trying to solve problems like air, water and radiation.
4______ We still need to solve lots of difficult problems. But with the fast development of science, our space dream will come true step by step.
A. It is the most similar planet to Earth.
B. However, space travel still faces many difficulties now.
C. They want to open up space travel for everyone.
D. People have already lived on Mars for many years.
E. It may become real in the near future.
参考答案
一、选词填空
1. progress 2. impossible 3. similar 4. radiation 5. possibility
6.unlikely 7. give up 8. challenges 9. exploring 10. recognize
二、适当形式填空
1. to learn 2. impossible 3. astronauts 4. temperature 5. to solve
6.exploring 7. takes 8. living 9. likely 10. development
三、阅读理解 A
1.B 2.C 3.B 4.D
四、完形填空
1.A 2.B 3.C 4.B 5.D
6.A 7.B 8.A 9.A 10.C
五、五选四
1.E 2.C 3.A 4.B
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