托福阅读十大题型——The Origins of Cetaceans

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。那么，在以下内容中，我们就为大家带来一系列的托福简化题内容汇总希望能为大家的备考带来帮助。

托福阅读句子简化题：The Origins of Cetaceans

【Paragraph 5】An even more exciting find was reported in 1994, also from Pakistan. The now extinct whale　Ambulocetus natans ("the walking whale that swam") lived in the Tethys Sea 49 million years ago. It lived around 3　million years after Pakicetus but 9 million before Basilosaurus. The fossil luckily includes a good portion of the hind legs.

The legs were strong and ended in long feet very much like those of a modern pinniped. The legs were certainly　functional both on land and at sea. The whale retained a tail and lacked a fluke, the major means of locomotion in　modern cetaceans. The structure of the backbone shows, however, that Ambulocetus swam like modern whales bymoving the rear portion of its body up and down, even though a fluke was missing. The large hind legs were used for　propulsion in water. On land, where it probably bred and gave birth, Ambulocetus may have moved around very much like a modern sea lion. It was undoubtedly a whale that linked life on land with life at sea.(The Origins of Cetaceans)

Which of the sentences below best expresses the essential information in the highlighted sentence in the　passage? Incorrect choices change the meaning in important ways or leave out essential information.

○Even though Ambulocetus swam by moving its body up and down, it did not have a backbone.

○The backbone of Ambulocetus, which allowed it to swim, provides evidence of its missing fluke.

○Although Ambulocetus had no fluke, its backbone structure shows that it swam like modern whales.

○By moving the rear parts of their bodies up and down, modern whales swim in a different way from the way　Ambulocetus swam.

托福阅读句子简化题答案：3