C.Ants, bees and spiders have been shrinking by 50% to 70% in the past decade.
D.A warming event causing species to become smaller has never happened before.
答案:A 细节理解题。根据第四段最后一句“There is a recent report on warmer temperatures' negative effects on plankton, the base of the marine ecosystem.”可知,气候变化已经对浮游生物产生了有害影响。故A项正确。
9.What's the author's attitude toward climate change in the passage?
A.Concerned.
B.Optimistic.
C.Indifferent.
D.Confident.
答案:A 观点态度题。根据文章最后一句“So, it is likely that more negative influences of climate change will be shown in future.”可知,作者对气候变暖对生物的影响有些担忧。故A项Concerned(关心的)符合语境。
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