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托福阅读词汇题:Vast

2015-08-20 17:53:31来源:网络

  【托福阅读题型:Vast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:Vast

  【Paragraph 4】More recent geologic studies documented deglaciation and the existence of ice-free areas  throughout major coastal areas of British Columbia, Canada, by 13,000 years ago. Research now indicates that sizable areas of southeastern Alaska along the inner continental shelf were not covered by ice toward the end of the last Ice Age. One study suggests that except for a 250-mile coastal area between southwestern British Columbia and Washington State, the Northwest Coast of North America was largely free of ice by approximately 16,000 years ago. Vast areas along the coast may have been deglaciated beginning around 16,000 years ago, possibly providing a coastal corridor for the movement of plants, animals, and humans sometime between 13,000 and 14,000 years ago. (Colonizing the Americas via the Northwest Coast)

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

  ○Frozen

  ○Various

  ○Isolated

  ○Huge

  ○ not reachable

  答案见下一页:

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