Question

【題目】As space science develops（發(fā)展）, 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（輻射）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（傷害）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（有效的）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（損壞）.

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.

【1】Most of the man-made things flying in space are____________.

A.satellites B.spaceships

C.space shuttles D.space rubbish

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

A. good B. helpful

C. useful D. harmful

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

A. 碎片 B. 泡沫 C. 煙霧 D. 飛碟

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

A. two B. three C. four D. five

【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.

Answer 1

【答案】

【1】D

【2】D

【3】A

【4】A

【5】C

【解析】

試題分析：本文敘述了宇航員在天空遇到的危險�？芍�在太空中宇航員可能遇到的兩種危險有：輻射和太空垃圾。輻射的危害可能直到宇航員的孩子甚至孫子才被發(fā)現(xiàn)。在太空中人造的東西中，大約有30%是人造衛(wèi)星，10%是太空飛船，剩下的都是太空垃圾。爆炸會產(chǎn)生碎片，一片小的碎片會給飛船帶來損害。科學(xué)家正在觀察和報道太空中的危險，正在想辦法解決這些危險。

【1】D推理判斷題。根據(jù)About 30% of these are satellites, 10% are spaceships, and the rest are space rubbish.可知人造的東西在太空中成為垃圾的比例為1-30%-10%=60%。故選D。

【2】D細節(jié)理解題。根據(jù)文中信息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. 可知來自太陽和其他星體的輻射對宇航員有害，故選D。

【3】A詞義猜測題。根據(jù)A small piece of these even knocked a spaceship window and caused some damage（損壞）.可知爆炸會產(chǎn)生碎片，一片小的碎片會給飛船帶來損害。故選A。

【4】A細節(jié)理解題。根據(jù)Scientists have found out that the radiation(輻射)is the greatest danger to spacemen in space.和 Space rubbish is also thought to be a great danger to spacemen.可知在太空中宇航員可能遇到的危險有：輻射和太空垃圾，共兩種。故選A。

【5】C細節(jié)理解題。根據(jù)The harm of the radiation won’t be found until their children even grandchildren are born.可知輻射的危害可能在宇航員的孩子甚至孫子身上發(fā)生。故選C。