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2014年托福阅读趋势是什么

2014-04-15 19:25:43来源:新东方在线编辑整理

nswer Choices

  1. Recent discoveries of fossils have helped to show the link between land mammals and cetaceans.

  2. The discovery of Ambulocetus natans provided evidence for a whale that lived both on land and at sea.

  3. The skeleton of Basilosaurus was found in what had been the Tethys Sea, an area rich in fossil evidence.

  4. Pakicetus is the oldest fossil whale yet to be found.

  5. Fossils thought to be transitional forms between walking mammals and swimming whales were found.

  6. Ambulocetus' hind legs were used for propulsion in the water.

  这是每篇文章最后的一个大题,基于全文的基础进行提问,所以,我们可以根据文章的关键句,先来判断这篇文章的主要内容。以下摘选了文章的每个自然段的关键句,我们一起来看一下:

  THE ORIGINS OF CETACEANS

  第一自然段:It should be obvious that cetaceans-whales, porpoises, and dolphins-are mammals. They breathe through lungs, not through gills, and give birth to live young. …

  第二自然段:Very exciting discoveries have finallyallowed scientists to reconstruct the most likely origins of cetaceans. …

  第三自然段:The fossil consists of a complete skull of an archaeocyte, an extinct group of ancestors of modern cetaceans. Although limited to a skull, the Pakicetus

  fossil provides precious details on the origins of cetaceans. …

第四自然段:Another major discovery was made in Egypt in 1989. Several

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