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托福阅读修辞目的题:a cherry

2015-08-12 16:49:16来源:网络

  【托福阅读题型:a cherry修辞目的题】托福阅读中句子插入题是重要题型之一。根据托福阅读题型不同来进行专项练习,是短期提高托福阅读能力的有效方法。同学们需要多加练习哦!

  查看全部:托福阅读题型分类练习之修辞目的题

  托福阅读修辞目的题:a cherry

  【Paragraph 4】Many millions of years after ferns evolved (but long before the Hawaiian Islands were born from the se○, another kind of flora evolved on Earth: the seed-bearing plants. This was a wonderful biological invention. The seed has an outer coating that surrounds the genetic material of the new plant, and inside this covering is a concentrated supply of nutrients. Thus the seed’s chances of survival are greatly enhanced over those of the naked spore. One type of seed-bearing plant, the angiosperm, includes all forms of blooming vegetation. In the angiosperm the seeds are wrapped  in an additional layer of covering. Some of these coats are hard–like the shell of a nut–for extra protection. Some are soft and tempting, like a peach or a cherry. In some angiosperms the seeds are equipped with gossamer wings, like the dandelion and milkweed seeds. These new characteristics offered better ways for the seed to move to new habitats. They could travel through the air, float in water, and lie dormant for many months.(The Arrival of Plant Life in Hawaii)

  Why does the author mention “a nut”, “a peach”, and “a cherry”?

  ○To indicate that some seeds are less likely to survive than others

  ○To point out that many angiosperms can be eaten

  ○To provide examples of blooming plants

  ○To illustrate the variety of coverings among angiosperm seeds

  答案见下一页:

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