# 托福阅读难点题型解题思路实例精讲 推理inference题高分答题方法介绍

1. 仔细审题

2. 理解段落主题

3. 巧用排除法

4. 留意极端词句

5. 小心包含术语词汇的选项

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 Yucatán 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 the paragraph about the location of the meteorite impact in Mexico?

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

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

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

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

C

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