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托福阅读词汇题:as long as

2015-08-20 18:11:55来源:网络

  【托福阅读题型:as long as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:as long as

  【Paragraph 3】The other part of the explanation is body size. Larger animals require more food than smaller  animals, but smaller animals have a higher metabolic rate. Smaller animals can therefore live where there is less food,  provided that such food is of high energy content. That is why the smallest of the herbivores, Thomson’s gazelle, lives on fruit that is very nutritious but too thin on the ground to support a larger animal. By contrast, the large zebra lives on themasses of low-quality stem material.(Feeding Habits of East African Herbivores)

  The phrase provided that in the passage is closest in meaning to

  ○ as long as

  ○ unless

  ○ as if

  ○ even though

  答案见下一页:

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