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 space men 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 mas been．

Space junk(垃圾)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(卫星), 10％are spaceships, and the rest are space junk．An explosion(爆炸)in l996 made a cloud of 300,000 fragments, each at least 4ram 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．

根据短文内容选择最佳答案。

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

3．The underlined word “fragments” means            ．

A．碎片                   B．泡沫                    C．烟雾

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．

5．％e best title(标题)of the passage is                ．

A．Space Radiation     B．Space Danger       C．Space Junk

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(垃圾) 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 m space in a few years. So we should care for space and do something to help improve the space environment.

51．_________shows the man-made things in Space in the correct way.

52. 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. All the spacemen

53. The underlined word “fragments” means “_______”.

A.碎片　　　 B.泡沫　　　 C.烟雾　　　 D.粉末

54. Which of the following about the passage is TRUE'?

A. The spaceships, are not dangerous in space.

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

55. The best title of the passage is______.

A. Space Radiation　 B. Space Danger C. Space Junk　 D. Space explosion

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 the radiation（辐射） is the greatest danger to spacemen in space. When spacemen are working in space, they are in danger of the radiation from the sun and other stars, which is bad for their health. The harm of the radiation won’t be found until their children even grandchildren are born. Some special medicine may work a little, but no really effective medicine has been found so far.
Space rubbish is also thought to be a great danger to spacemen. It’s reported that there were 9,000 man-made things flying in space. About 30% of these are satellites, 10% are spaceships, and the rest are space rubbish. An explosion（爆炸）in space in 1999 made a cloud of 300,000 fragments, each at least 4mm in size. A small piece of these even knocked a spaceship window and caused some damage（损坏）.
Scientists are watching and reporting any possible danger all the time. They are working to deal with space rubbish. Although space is really dangerous, it interests many people on the earth. In the near future, it may become possible 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 do something to help improve the space environment.
【小题1】 ______ shows the man-made things in space in the correct way.
   

A．

B．

C．

D．

【小题2】The radiation from the sun and other stars is ______ to spacemen.

A．good

B．helpful

C．useful

D．harmful

【小题3】 The underlined word “fragments”means “______”.

A．碎片

B．泡沫

C．烟雾

D．飞碟

【小题4】 The passage talks about _________ kinds of danger in space.

A．two

B．three

C．four

D．five

【小题5】 Which of the following is TRUE?

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

B．Every one of us can have a travel to space in ten years.

C．The harm of the radiation may be found in the spacemen’s children.

D．Space is really dangerous, so it doesn’t interest anyone on the earth.

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 the radiation（辐射） is the greatest danger to spacemen in space. When spacemen are working in space, they are in danger of the radiation from the sun and other stars, which is bad for their health. The harm of the radiation won’t be found until their children even grandchildren are born. Some special medicine may work a little, but no really effective medicine has been found so far.
Space rubbish is also thought to be a great danger to spacemen. It’s reported that there were 9,000 man-made things flying in space. About 30% of these are satellites, 10% are spaceships, and the rest are space rubbish. An explosion（爆炸）in space in 1999 made a cloud of 300,000 fragments, each at least 4mm in size. A small piece of these even knocked a spaceship window and caused some damage（损坏）.
Scientists are watching and reporting any possible danger all the time. They are working to deal with space rubbish. Although space is really dangerous, it interests many people on the earth. In the near future, it may become possible 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 do something to help improve the space environment.
【小题1】 ______ shows the man-made things in space in the correct way.
   

A．

B．

C．

D．

【小题2】The radiation from the sun and other stars is ______ to spacemen.

A．good

B．helpful

C．useful

D．harmful

【小题3】 The underlined word “fragments”means “______”.

A．碎片

B．泡沫

C．烟雾

D．飞碟

【小题4】 The passage talks about _________ kinds of danger in space.

A．two

B．three

C．four

D．five

【小题5】 Which of the following is TRUE?

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

B．Every one of us can have a travel to space in ten years.

C．The harm of the radiation may be found in the spacemen’s children.

D．Space is really dangerous, so it doesn’t interest anyone on the earth.