Unit 4 Life on Mars 限时提高训练一(含答案）

9BU4 限时提高训练一
一、单项选择 （本大题共10小题，每小题1分，共10分）
1. It is almost a year __________ workers started to build the underground Line 3 in Wuxi.
A. when B. since C. before D. after
2. ---How is your local government going to deal with the office building
---It will be ___________ a public library.
A. turned out B. turned on C. turned off D. turned into
3. People move easily and quickly on the moon, because its gravity is six times______than Earth’s.
A. much B. more C. little D. less
4. Now it seems to me that the task wasn’t as______as I first thought. I showed some interest in it.
A. exciting B. excited C. boring D. bored
5. ---Excuse me, but can you ____________ to your general manager
--- Sorry, she has gone to the USA.
A. put me back B. put me through C.put me away D. put me on
6. ---Are you going to take part in the English competition
---________It's too good a chance to miss.
A.No problem! B. That's for sure. C.Why me D.Why bother
7. The Tourism City has_______thousands of job chances for the local people after its opening.
A. offered B. given C. created D.shown
8. ______ with the size of the whole earth, the highest mountain doesn’t seem high at all.
A.Comparing B. To compare C.By comparing D.Compared
9. Even if you study every day, it can _______ years to master some languages.
A. take B. spend C. pay D. cost
10. When thinking of the four years spent in college, I feel it a period of time of hardness___happiness.
A. as good as B. as often as C. as well as D. as many as
二、词汇运用 （本大题共12小题，每小题1分，共12分）
1.If you drive to work, keep healthy snacks in your car, such as_______(dry) fruit, and a bottle of water.
2.Have you heard that red wine makes you __________ (sleep) than white wine
3.There are many postcards in the shop and this style is_________ (special) designed for the New Year.
4.If you have any ideas or __________ (think) about this, please share them with us at once.
5.___________ (比较) with walking forward, walking backward is better for our memories.
6.Since the year 2000, China’s Newspaper Groups have had a _________ (迅速的) development.
7.As the plane was ready to take off, all the ___________ (乘客) fastened their seat belts.
8.The surface of Mars is more like the surface of Earth than any other ___________(行星) in our solar system.
9.The shopkeeper rubbed the apples to give them a shine and to make them look much _______ (tasty).
10.Boston Harbor is so _________(pollute) that scientists say it won’t recover(恢复) until the next century at least.
11.Jack was feeling __________(comfort) in that old jacket because all his classmates laughed at him.
12.By the end of the twentieth century, about seven __________ (twelve) of adult women had jobs.
三、动词填空（本大题共8小题，每小题1分，共8分）
1. The disease first appeared in Thailand and it ___________ (spread) rapidly all over the world.
2. It’s expected that the first passengers ___________ (send) to Mars by the year 2050.
3. It is the first time that I ___________(regret) marrying such a lazy and selfish man.
4. The price of oil____________ (increase) all the time. No one knows when it will go down.
5. It __________ (hope) that the new coach may be able to pull the football team together.
6. Many foreign people, especially the young people, __________ (be) interested in Chinese culture since they came here for the first time.
7. He said that if he had a lot of money, he __________ (travel) around the world.
8. Jack began to count the people in his mind while they ___________ (have) the delicious food.
四、完成句子 （本大题共8小题，每小题1分，共8分）
1. 众所周知，金属主要是以合金的形式使用。
It is known to all that metals ___________________________________________ alloys.
2. 我们都知道火星上的重力只有地球上的八分之三。
We all know the gravity on Mars is only _____________________________ on the Earth.
3. 如果你需要打印文件，你得把电脑和打印机连接在一起。
If you need to print the papers, you ____________________________ the printer together.
4. 政府有望在下个月控制这种新型病毒。
______________________________________________________________the new virus.
5. 和以前的生活相比较，我们觉得阳光镇已经发生了很大的变化。
_______________________________________, we think Sunshine town has changed a lot.
6. 目前，宇宙飞船太慢，搭载不了大量的乘客去火星。
At present, our spacecraft _____________________________________________________.
7. 人们只能穿特殊的靴子以防自己飘入太空。
People have to wear __________________________________________________________.
8.看，这班车挤满了人，我们等下一班吧。
Look, the bus __________________________________________. Let’s wait for the next one.
五、阅读理解 （本大题共4小题，每小题2分，共8分）
Many people know that rubbish is a big problem on planet Earth. What many people don't know is that junk(垃圾) has become a problem in outer space, too.
According to BBC News, there are more than 22，000 pieces of space junk floating around the earth. And these are just the things that we can see from the surface of the earth by telescopes(望远镜). There are also millions of smaller pieces of junk that we can't see.
Objects, like bits of old space rockets or satellites, move around the planet at very high speeds, so fast that even a very small piece can break important satellites or become dangerous to astronauts. If the tiniest piece of junk crashed into a spaceship, it could damage the vehicle.
To make things worse, when two objects in space crash, they break into many smaller pieces. For example, when a US satellite hit an old Russian rocket in 2009, it broke into more than 2，000 pieces, increasing the amount of space junk.
To reduce additional space junk, countries have agreed that all new space tools can only stay in space for 25 years at most. Each tool must be built to fall safely into the earth's atmosphere after that time. In the upper parts of the atmosphere, it will burn up.
Many scientists are also suggesting different ways to clean up space junk. In England scientists are testing metal net that can be fired into space junk. The net catches the junk and then pulls it into the earth's atmosphere to burn up. The Germans are building robots that can collect pieces of space junk and bring them back to the earth to be safely destroyed.
“The problem is becoming more challenging because we're sending more objects into space to help people use their mobile phones and computers,” says Marco Castronuovo, an Italian space researcher.
“The time to act is now. The longer we leave the problem, the bigger it will become，” he says.
1.What does the underlined word “these” in Paragraph 2 refer to
A.Telescopes. B.Satellites.
C.Pieces of space junk. D.BBC News reports.
2.Why is space junk considered a problem
A.It burns up after it re enters the atmosphere.
B.It often stops the view of telescopes on Earth.
C.It could force new space tools to travel at slower speeds.
D.It may crash into other space tools causing damage or death.
3.Countries want future space tools to be fall back into the earth's atmosphere so that ．
A.the tools can be reused later B.the tools don't become space junk
C.the earth's atmosphere can stay clean D.the effects of space flight can be studied
4.How do the Germans plan to deal with space junk
A.Catch it with nets. B.Use robots to collect it.
C.Burn it in the earth's atmosphere. D.Send it further away from the earth.
参考答案
单项选择：
1-5 BDDCB 6-10 BCDAC
词汇运用：
1.dried 2. sleepier 3.specially 4. thoughts
5. compared 6. rapid 7. passengers 8. planet
9. tastier 10. polluted 11. uncomfortable 12.twelfths
动词填空：
1. spread 2. will be sent 3.have regretted 4. is increasing
5. is hoped 6. have been 7. would travel 8. were having
完成句子：
1. are used in the form of
2. three eighths of that
3. have to connect the computer to
4. It's hoped the government will control
5.Compared with the life before
6. are too slow to carry numbers of passengers to Mars
7. special boots to prevent themselves from floating off into space
8. is crowded with people
阅读理解
CDBB