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 future.
文章大意:本文是一篇科普说明文。主要报道了一项新发现,研究人员发现了气候变暖会导致地球上许多生物个体变小的现象。
16.Which of the following would be the best title for the passage?
A.Why do some species become smaller?
B.How does temperature change in Earth's history?
C.Climate change has many negative effects
D.Species become smaller as climate warms
答案:D 标题概括题。通读全文及第二段首句“45 percent of the species studied now reach smaller adult sizes than they did in the past.”可知,本文主要讲述了气候变暖会导致许多生物个体变小的现象,故D项正确。
17.The underlined word “trumped” in the first paragraph can be replaced by ________.
A.been neglected by
B.had strong influences than
C.been weakened by
D.been less than
答案:B 词义猜测题。根据本句中的but可知,画线词与其前面的内容“大气中二氧化碳的增加会使植物个体变大”是转折关系,并根据下文中气温、湿度、可利用的营养等条件对生物的影响可知,这些条件的改变似乎比二氧化碳浓度增加更有影响力。故B项正确。
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