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托福阅读词汇题:Desert

2015-08-11 15:53:33来源:网络

  【托福阅读题型:Desert 词汇题】托福阅读中词汇题是重要题型之一。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词汇题

  托福阅读词汇题:Desert

  【Paragraph 6】Four specific activities have been identified as major contributors to the desertification processes: overcultivation, overgrazing, firewood gathering, and overirrigation. The cultivation of crops has expanded into progressively drier regions as population densities have grown. These regions are especially likely to have periods of severe dryness, so that crop failures are common. Since the raising of most crops necessitates the prior removal of the natural vegetation, crop failures leave extensive tracts of land devoid of a plant cover and susceptible to wind and water erosion. (Desert Formation)

  The word “progressively” in the passage is closest in meaning to

  ○openly

  ○impressively

  ○objectively

  ○increasingly

  The phrase “devoid of” in the passage is closest in meaning to

  ○consisting of

  ○hidden by

  ○except for

  ○lacking in

  答案见下一页:

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