Question

As space science develops, man has learned more and more about space. Space is not only amazing but also dangerous. While working in space, spacemen are facing danger as well as success.

Scientists have found out that radiation(辐射) is the greatest danger to spacemen in space. When spacemen are working in space, they are in danger of radiation from the sun and other stars, which is bad for their health. The damage(危害) done by radiation won't be discovered until their children or even grandchildren are born. Some special medicine may work a little, but no really helpful medicine has been.

Space junk is also thought a great danger to spacemen. It's reported that there are 9,000 man-made things flying in space. About 30% of these are satellites, 10% are spaceships, and the rest are space junk. An explosion(爆炸) in 1996 made a cloud of 300,000.fragments, each at least 4mm in size, and even a small piece of these knocked against a spaceship window and did some damage. Scientists are watching and reporting any possible danger all the time. They are working on helpful ways to do with space junk.

Although space is really dangerous, it interests everyone on the earth. In the near future, it may become usual for people to spend a few days in a space hotel. We may even choose to leave the earth and live in space in a few years. So we should care for space and do something to help improve the space environment.

1.__________ shows the man-made things in space in the correct way.

2.Space junk and radiation in space are dangerous to___________ .

A. spacemen working in space B. people only on the earth

C. all the people except children D. the old people on the earth

3.The underlined word “fragments” means “ ”.

A. 烟雾B. 泡沫 C.云块 D. 碎片

4.Which of the following about the passage(短文) is TRUE?

A. The passage tells us that radiation in space comes from the sun and other stars.

B. Every one of us can make a trip to space now.

C. Scientists have found out ways to solve any problem in space.

D. People are afraid to travel to space because it’s too dangerous.

5.The best title(标题) of the passage is .

A. Space RadiationB. Space Danger C. Space Junk D.Space Travel

 

Answer 1

1.C

2.A

3.D

4.A

5.B

【解析】

试题分析：短文大意：随着空间科学的发展，人类已经了解了许多太空知识。空间不仅是惊人的，还是危险的。在太空，宇航员面临着危险，以及成功。科学家们已经发现辐射是在空间里最大的危险。太空垃圾也被认为是十分危险的。所以我们应该关心空间和做一些事来帮助改善空间环境。

1.根据第三段第三句About 30% of these are satellites, 10% are spaceships, and the rest are space junk.可知该选C。

2.根据第二段首句Scientists have found out that radiation is the greatest danger to spacemen in space.和第三段首句Space junk is also thought a great danger to spacemen.可知该选A。

3.词义猜测题。根据句子An explosion in 1996 made a cloud of 300,000.fragments, each at least 4mm in size, and even a small piece of these knocked against a spaceship window and did some damage. 可推知选D。

4.根据第二段中they are in danger of radiation from the sun and other stars, 可知该选A。

5.读短文知，本文主要是说辐射和宇宙垃圾对太空工作人员的危害，所以选B。

考点：科普环保类阅读。