For many years,people have wondered whether we are the only living things in the universe. Some scientists believe that there must be 1on other planets because the universe is so big. 2.other scientists don' t think so,because plants 3 a very specific environment for life to 4. There are facts that 5 both sides of the argument.

    On the one hand,the universe is 6 . There are billions of stars and thousands of solar systems (太陽(yáng)系) .Many of these solar systems have pjanets that go round and round a sun like Earth

7 there are so many pl^iets in space,it is 8 that one of these planets could have theright conditions needed for life. Recently,experts found 54 planets similar to Earth. They 9 that one of these planets has the 10 atmosphere (大氣層) and temperature needed for life. 11 in our solar system,scientists have found 12 of water on Mars. They believe that this could 13 that there is,or was,a form of very simple life on these planets.

    On the other hand,a planet needs very special 14 to have life. A planet would need to have water,the right temperature and the right mix of (化學(xué)物質(zhì)) in the atmosphere.

In addition, 15 scientists believe that life might exist on other planets,we have never found evidence to 16 it. A recent report 17 that it is very unlikely that there is life on other planets. They believe we don't have enough evidence to 18 whether there is life on other planets.

     in conclusion(綜上所迷) ，i do not 19 that there is life on other planets. I do not think that any other planets could have 20 the same conditions as Earth. Therefore,I do not think that there could be life on other planets.

1. A. wonder   B. life   C. water   D. air

2. A. . Besides   B. So   C. However   D. Then

3. A. need   B. provide

   C. create   D. protect

4. A. continue   B. spare   C. start   D. save

5. A. cause   B. develop

   C. win   D. support

6. A. beautiful   B. huge   C. dark   D. open

7. A. Because   B. If   C. When   D. While

8. A. strange   B. likely   C. important   D. hard

9. A. realize   B. hear

   C. believe   D. remember

10. A. right   B. wet   C. clear   D. heavy

11. A. Just   B. Soon   C. Yet   D. Even

12. A. pictures   B. bottles

   C. evidence   D. plenty

13. A. find   B. mean   C. answer   D. add

14. A. places   B. chances

   C. attentions   D. conditions

15. A. although   B. unless

   C. as   D. until

16. A. improve   B. study

   C. collect   D. prove

17. A. doubts   B. suggests

  C. changes   D. expects

18. A. ask   B. guess

   C. decide   D. discover

19. A. agree   B. know   C. imagine   D. forget

20. A. always   B. only   C. simply   D.exactly

1. B. 根據(jù)上一句中的Whetherwea the only living things in 以及下文關(guān)于其他星球上是否有生命存在的正反兩方的觀點(diǎn)可知，有些科學(xué)家相信其他星球上有“生命（life) ”存在. 

2. C. 根據(jù)該空后的 other scientists  don't think so 可知，“然而(However) 其他科學(xué)家持不同觀點(diǎn)。 

3 A 4 C. 一些科學(xué)家認(rèn)為其他星球上沒(méi)有生命存在是因?yàn)樾乔颉靶枰?need) ”適合生命“開始(start) 的特殊環(huán)境。

5. D。根據(jù)接下來(lái)兩段具體介紹兩種不同的觀點(diǎn)可知，爭(zhēng)論雙方有各自的依據(jù)來(lái)“支持(support) ”其觀點(diǎn)。

6. B. 根據(jù)下一句 There are billions  stars and thousands of solar systems

知，宇宙“浩瀚無(wú)邊(huge).”

7. A. 8. B. 根據(jù)上文中的Many of these solar systems have planets和下文

中的 one of these planets could hag the right conditions needed for life 

知,“因?yàn)?Because) ”宇宙中有如此多的星球，因此“可能(likely）”有一顆星球上有適和生命存在的環(huán)境。

9.C 10.A該段主要介紹贊成其他星球上有生命存在的觀點(diǎn)，因此專家“相信aeliever”新發(fā)現(xiàn)的星球上有“適宜 (right) ”生命南大氣層和溫度。

11 D 上文中的 thousands of solar sterns和該空后的our solar system進(jìn)行比較，表示“甚至(Even) ”在我們自己的太陽(yáng)系里。

12. C.根據(jù)下一句中的there 1S,01Tas,a form of very simple life i

planets可知，科學(xué)家在火星上找到水的“證據(jù)(evidence) ”。

13.B上一句中的 water on Mars 意味著（mean） 星球上有生命存在或存在過(guò)。 

14. D.根據(jù)下一句中的need to water,the right temperature and the right mix of chemicals m the alLphere 可知，一顆星球需要特殊的“環(huán)境Conditions) ”來(lái)適合生命存在。

15. A 根據(jù)后半句中的 we have neve found evidence 可知“科學(xué)家相信其他星球上可能有生命”表示讓步，故填（although）

16 D  我們還沒(méi)有找到證據(jù) “證明(prove) ”其他星球上確實(shí)有生命存在。

17.B 根據(jù)下一句中的They believe we don't have enough evidence可知這

份報(bào)告“間接表明(suggfts) 其他星 上不太可能有生命存在。

18. C.根據(jù)上一句中的it is very unlikely that there is life on other

planet可知，我們沒(méi)有足夠的證據(jù)來(lái)對(duì)其他星球上的生命存在之說(shuō)“作出判斷(decide) ”。

19. A.根據(jù)最后一句 Therefore,I do not think that there could be life on other planets 可知，作者不”認(rèn)同（agree）“其他星球上有生命這一說(shuō)法。

20.D 作者認(rèn)為其他星球不可能有著和地球”完全（exactly）“一樣的環(huán)境。

題目來(lái)源：2016年英語(yǔ)周報(bào)高一新課標(biāo) > 第37期2015-2016年高一新課標(biāo)

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