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托福阅读插入题范例(7)

2015-08-03 11:17:28来源:网络

  【托福阅读插入题范例(7)】托福阅读插入题本质考察考生的关联句子能力,语法及逻辑关系。新东方在线托福网为大家带来托福阅读插入题范例(7),希望对大家托福备考有所帮助。更多精彩尽请关注新东方在线托福网!

  查看全部:托福阅读插入题范例

  托福阅读插入题例题

  例题7:

  Under very cold conditions, rocks can be shattered by ice and frost. Glaciers may form in permanently cold areas, and these slowly moving masses of ice cut out valleys, carrying with them huge quantities of eroded rock debris. █In dry areas the wind is the principal agent of erosion. █It carries fine particles of sand, which bombard exposed rock surfaces, thereby wearing them into yet more sand. █Even living things contribute to the formation of landscapes. █Tree roots force their way into cracks in rocks and, in so doing, speed their splitting. In contrast, the roots of grasses and other small plants may help to hold loose soil fragments together, thereby helping to prevent erosion by the wind.

  Look at the four squares [█] that indicate where the following sentence could be added to the passage.

  Under different climatic conditions, another type of destructive force contributes to erosion.

  答案见下一页>>>>


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