D.they are growing and flowering much faster than before
60. What can be inferred from the last two paragraphs about the world’s temperature?
A.It has risen nearly 0.2℃ since 1979.
B.Its change will lead to weather extremes.
C.It is 0.8 higher in 1979 than that of 1900.
D.It needs to be controlled within 2 in this century.
【答案解析】【要点综述】本文为科普类文章。文章论述了全球变暖的气候环境会让植物提前开花,进而影响整个食物链及生态系统。
57. B 细节理解题。第一段话给读者传达的主要信息存在于主句,而不是which所引导的定语从句上。根据“Plants are flowering faster than scientists predicted”可知,作者是要告知读者植物开花的增速超出了科学家的预期。故选B。A为次要信息。
58. C 推理判断题。第五段话“It found that some experiments had underestimated(低估)the speed of flowering by 8.5 times and leafing by 4 times.”暗示读者:对于植物所设计的实验应该有所改进,故答案选C。
59. B 细节理解题。根据第四段“They said plants had been the key object of study because their reaction to climate change could have an effect on food chains and ecosystem services.”可知植物对气候变化的反应对整个食物链和生态系统都至关重要。故答案选B。
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