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托福阅读推断题范例(10)

2015-07-31 16:20:21来源:网络

  【托福阅读推断题范例(10)】托福阅读推断题本质是逻辑推理型事实信息题。新东方在线托福网为大家带来托福阅读推断题范例(10),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:托福阅读推断题范例及答案

  托福阅读推断题例题

  极端词:

  例题10:Meteorite Impact and Dinosaur Extinction

  Paragraph 3: The body that impacted Earth at the end of the Cretaceous period was a meteorite with a mass of more than a trillion tons and a diameter of at least 10 kilometers. Scientists first identified this impact in 1980 from the worldwide layer of sediment deposited from the dust cloud that enveloped the planet after the impact. This sediment layer is enriched in the rare metal iridium and other elements that are relatively abundant in a meteorite but very rare in the crust of Earth. Even diluted by the terrestrial material excavated from the crater, this component of meteorites is easily identified. By 1990 geologists had located the impact site itself in the Yucat region of Mexico. The crater, now deeply buried in sediment, was originally about 200 kilometers in diameter.

  Which of the following can be inferred from paragraph 3 about the location of the meteorite impact in Mexico?

  The location of the impact site in Mexico was kept secret by geologists from 1980 to 1990.

  It was a well-known fact that the impact had occurred in the Yucat region.

  Geologists knew that there had been an impact before they knew where it had occurred.

  The Yucat region was chosen by geologists as the most probable impact site because of its climate.

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