第三部分：概括大意與完成句子 (第23～30題，每題1分，共8分)

閱讀下面這篇短文，短文后有2項測試任務(wù)：(1)第23～26題要求從所給的6個選項中為第2～5段每段選擇1個正確的小標(biāo)題；(2)第27～30題要求從所給的6個選項中選擇4

Global Warming

1 Smoke is clouding our view of global warming, protecting the planet from perhaps three-quarters of the greenhouse （溫室） effect. That might sound like good news, but experts say that as the cover diminishes in coming decades, we are facing a dramatic increase of warming that could be two or even three times as great as official best guesses. 2 This was the dramatic conclusion reached last week at a workshop in Dahlem, Berlin, where top atmospheric scientists got together, including Nobel prize winner Paul Crutzen and Swedish 4

scientist Bert Bolin, former chairman of the UN's Intergovernmental Panel on Climate Change （IPCC）. 3 IPCC scientists have suspected for a decade that aerosols （浮質(zhì)） of smoke and other particles from burning rainforest, crop waste and fossil fuels are blocking sunlight and counteracting the warming effect of carbon dioxide （二氧化物） emissions. Until now, they reckoned that aerosols reduced greenhouse warming by perhaps a quarter, cutting increases by 0.2℃. So the 0.6℃ of warming over the past century would have been 0.8℃ without aerosols. 4 But the Berlin workshop concluded that the real figure is even higher－aerosols may have reduced global warming by as much as three-quarters, cutting increases by 1.8℃. If so, the good news is that aerosols have prevented the world getting almost two degrees warmer than it is now. But the bad news is that the climate system is much more sensitive to greenhouse gases than previously guessed. 5 As those gases are expected to continue accumulating in the atmosphere while aerosols stabilize or fall, that means "dramatic consequences for estimates of future climate change", the scientists agreed in a draft report from the workshop.

23 Paragraph 2_______

24 Paragraph 3_______

25 Paragraph 4 ______

26 Paragraph 5_______

A Atmospheric Scientists

B The Calculations Made at the Berlin Workshop

C The Previous Calculations of the Effect of Aerosols

D The Scientists' Agreement

E The Authoritative Conclusion

F Greenhouse Gases

27 When the cover diminishes in the coming decades, temperature__________ . 28 The conclusion reached at the Berlin workshop__________. 29 The Berlin workshop concluded that the real figure__________. 30 The increase of greenhouse gases__________.

A will influence future climate change

B was somewhat surprising

C will rise rapidly

D was known to us all

E was much higher than had been expected

F will drop dramatically

參考答案：

23 E 第二段講了在柏林的達(dá)勒姆的一個研討會上得到了這個引人注目的結(jié)論。這個研討會聚集了很多權(quán)威的科學(xué)家。所以The Authoritative Conclusion概括了本段的內(nèi)容。

24 C 第三段講了IPCC的科學(xué)家之前懷疑煙霧中的浮質(zhì)以及熱帶雨林、廢棄物、化石燃料的燃燒而產(chǎn)生的顆粒物阻止了陽光的射入，抵消了二氧化物排放而引起的溫室效應(yīng)。所以The Previous Calculations of the Effect of Aerosols概括了本段的內(nèi)容。

25 B 第四段講了柏林研討會的結(jié)論。所以The Calculations Made at the Berlin Workshop概括了本段的內(nèi)容。

26 D 第五段講了科學(xué)家們對研討會上草擬的報告達(dá)成了一致。所以The Scientists' Agreement概括了本段的內(nèi)容。

27 C 文章第一段指出：隨著大氣覆蓋層的降低我們正面臨著溫度的快速升高，上升速度會是官方預(yù)測的兩倍甚至三倍。

28 B 文章第四段中柏林研討會上的結(jié)論指出：大氣中的浮質(zhì)已經(jīng)降低了地球溫度1.80C，較之前IPCC的科學(xué)家懷疑的溫度降低的更多。但是大氣會對溫室氣體更加的敏感。

29 E 文章第四段開頭即指出柏林研討會上的數(shù)據(jù)比之前IPCC預(yù)測的數(shù)據(jù)更高。

30 A 文章第四、五段指出科學(xué)家們對這次研討會的報告達(dá)成共識：大氣會對溫室氣體更加的敏感溫室氣體會影響未來氣候的變化。

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