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哈尔滨三中、东北育才、大连育明、天津耀华2011年四校高三第二次高考模拟(英语)
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2015年 保定高三期末(第32-35题)
D“Plants were expected to get larger with increased carbon dioxide in the atmosphere，but changes in temperature，humidity（湿度）and nutrient availability seem to have&trumped&the benefits of increased carbon dioxide，”said researchers from the National University of Singapore．45 percent of the species studied now reach smaller adult sizes than they did in the past．The researchers pointed out that warmer temperatures and changing habitats，caused by climate change，are possible reasons for the shrinking of creatures．“We do not yet know the exact mechanisms（机制）involved，or why some organisms are getting smaller while others are unaffected，”the researchers said．“Until we understand more，we could be risking negative consequences that we can’t yet quantify．”The change is big in cold-blooded animals．Only two decades of warmer temperatures are enough to make creatures smaller．An increase of only 1℃causes nearly a 10 percent increase in metabolism（新陈代谢）．Greater use of energy results in tiny tortoises and little lizards．Fish are smaller now too．Though overfishing has played a part in reducing numbers，experiments show that warmer temperatures also stop fish growing．Warm-blooded animals aren’t immune（免除）from the size change caused by climate change．Many birds are now smaller．Red deer are weaker．And polar bears are smaller，compared with historical records．This isn’t the first time that has happened in Earth’s history．55 million years ago，a warming event similar to the current climate change caused bees，spiders and ants to shrink by 50 to 75 percent over several thousand years．That event happened over a longer time than the current climate change．The speed of modern climate change could mean organisms may not respond or adapt quickly enough，especially those with long generation times．So，it is likely that more negative influences of climate change will be shown in the future．
32、What does the text mainly talk about？
A.Why some species become smaller．
B.How climate changes in Earth’s history．
C.Climate change has many negative effects．
D.Species are becoming smaller as climate gets warmer．
33、The underlined word“trumped”in Paragraph 1 probably means“________”．
C.destroyed&
34、Researchers from the National University of Singapore believe that________．
A.they have found the exact causes for creatures getting smaller
B.increase in energy use can lead to creatures getting smaller
C.climate change has more negative effects on warm-blooded animals
D.all the animals on the earth have become smaller
35、What does the author feel about the climate change？
A.Worried．
B.Optimistic．
C.Disappointed．
D.Shameful．
【正确答案】
32:D33:A34:B35:A
【解题导语】
研究人员发现，气候变暖会导致地球上许多生物的个头变小。
【答案详解】32、主旨大意题。通读全文可知，本文主要介绍了气候变暖导致许多生物个头变小这一现象。故选D项。33、&词义猜测题。根据画线词所在句中的but可知，画线词所在部分与前面的内容，即大气中二氧化碳的增加将使生物个体变大之间为转折关系，从而可以推测气温、湿度、营养供应等的变化对生物的影响“战胜”了二氧化碳带来的好处。故选A项。34、&细节理解题。依据文章第四段中的“Greater use of energy results in tiny tortoises and little lizards”可知，生物体消耗自身的能量越多，其个头就越小。故选B项。35、观点态度题。根据文章最后一句的“so，it is likely that more negative influences of climate change will be shown in the future”可知，作者对气候变暖这一现象有些担忧。(
17:30:58 )
相关知识点We are expected to do与We expected to 有什么区别？_百度知道
We are expected to do与We expected to 有什么区别？
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