2017届高考英语一轮复习课时作业30 Unit 5（人教版选修6）_高考复习指南

　　6. The writer sets the example of the marmot so as to　.

　　A. explain that global warming influences animals’ hibernation

　　B. indicate that the weather gets warmer and warmer now

　　C. show that the weather in the United States is quite different

　　D. say some animals do not hibernate now due to warm weather

　　【解析】选A。细节理解题。根据第二段最后一句话可知作者是想借这个例子来说明全球变暖使得动物的冬眠期缩短了。

　　7. The underlined word“slumber”in the fourth paragraph means“　”.

　　A. weather

　　B. activityC. nestD. sleep

　　【解析】选D。词义猜测题。联系本句中的awake from可知答案为D项。

　　8. Why can’t marmots find enough food when they wake up?

　　A. Because there are too many marmots in the wild now.

　　B. Because plants haven’t received enough sunlight for spring growth.

　　C. Because winter days end much earlier than before.

　　D. Because more and more animal species skip hibernation now.

　　【解析】选B。细节理解题。由倒数第二段中的but plants will not have got the amount of sun they need to signal their spring period of growth可知答案为B项。

　　9. Terry Root holds a(n)　attitude towards the future of animals.

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