The question whether there is life on Mars (火星) has made the public think a lot for more than a century. The closest look showed Mars to be a dusty, cold world, covered by air too thin to breathe. A British spaceship and Europe's Mars spaceship plan to land on Mars or enter orbit (軌道) around it. One of the NASA’s (美國宇航局) spaceships is expected to land on January 3, the other is going to land on the opposite side of Mars on January 24. Since 1960, over twenty spaceships sent to Mars have failed. Most have been lost on flying up or landing because those are the most difficult times of any flights.     Scientists wanted to find out whether there was water in Mars. In October, a team of scientists reported that Mars had been a dry wasteland. But weeks later, a second team reported differently that they had found some marks showed clearly that they were made by the rivers. Such marks told us that Mars was a warmer place billions of years ago — just as life first appeared here on Earth. Scientists at once raise a question: if what they said is true, what happened on Mars? Then what about the earth?
小題1:Which is right about Mars?
A．It’s cold without dust.
B．There is no water or air.
C．It’s warm with some thin air.
D．It’s a dusty, cold world almost without air.
小題2:Two NASA’s spaceships _______________.
A．will land on the different sides of Mars
B．will land on the same day
C．will enter orbit around Mars
D．will land with a man
小題3:The most difficult times of a flight are _______________.
A．taking off
B．flying up and arriving
C．entering the orbit and landing
D．leaving the earth and entering the orbit
小題4:A team of scientists reported that there might be_____________ in Mars.
A．nothing but air
B．nothing
C．water billions of years ago
D．thick air and lakes
小題5:What are scientists worried about when they raise the question?
A．Life disappeared on Mars.
B．Spaceships can’t land on Mars.
C．The air on the earth gets less and less.
D．The earth might be changed like Mars

小題1:D
小題2:A
小題3:B
小題4:C
小題5:D

試題分析：一個多世紀(jì)火星上是否有生命的問題讓公眾想了很多。最接近的發(fā)現(xiàn)表明，火星是一個塵土飛揚(yáng)的，寒冷的世界，覆蓋太薄的空氣。一英國飛船和歐洲的火星飛船計(jì)劃降落在火星或進(jìn)入它周圍的軌道。美國航空航天局的太空飛船，預(yù)計(jì)1月3日土地，另一種是在1月24日降落在火星的另一側(cè)。自1960年以來，超過20飛船送往火星，都失敗了。大部分已遺失或著陸飛不起來了�？茖W(xué)家們想找出在火星上是否有水。 10月，研究小組的科學(xué)家報告說，火星一直干荒地。但幾周后，第二小組的報告，他們發(fā)現(xiàn)了一些痕跡清楚地表明，。這類標(biāo)記告訴我們，火星數(shù)十億年前一個溫暖的地方，科學(xué)家們立刻提出了一個問題：如果他們說的是真實(shí)的，在火星上發(fā)生了什么事？那地球呢？
小題1:細(xì)節(jié)理解題，根據(jù)文中語句“The closest look showed Mars to be a dusty, cold world, covered by air too thin to breathe.”理解可知�；鹦巧嫌袎m土，寒冷和太薄的空氣，故選D。
小題2:細(xì)節(jié)理解題，根據(jù)文中語句“One of the NASA’s (美國宇航局) spaceships is expected to land on January 3, the other is going to land on the opposite side of Mars on January 24.”理解可知。兩艘宇宙飛船在不同的時間不同的地點(diǎn)著陸火星，故選A。
小題3:細(xì)節(jié)理解題，根據(jù)文中語句“Most have been lost on flying up or landing because those are the most difficult times of any flights.”理解可知。故選擇B。
小題4:細(xì)節(jié)理解題，根據(jù)文中語句“a second team reported differently that they had found some marks showed clearly that they were made by the rivers.”理解可知。幾十億年以前，火星上有水資源，故選C。
小題5:細(xì)節(jié)理解題，根據(jù)文中語句“Scientists at once raise a question: if what they said is true, what happened on Mars? Then what about the earth?”理解可知�？茖W(xué)家們擔(dān)心地球也會有同樣的Mike命運(yùn)，故選D。
點(diǎn)評：這類文章經(jīng)常會有較多的生詞，但是這些生詞對文章并沒有實(shí)質(zhì)的影響，考生要抓住主要的細(xì)節(jié)要點(diǎn)進(jìn)行分析。
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根據(jù)短文內(nèi)容，選最佳擇答案,并在答題卡上按要求作答。
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