托福考试阅读词汇150题【2】

  　　托福词汇备考的时候，光靠背单词作用是有限的，最好是把记单词这个步骤与习题结合在一起，或者结合着词汇题来分析，下面就是小编带来的托福考试阅读词汇150题，一起来认真的分析一下吧!

  　　aragraph 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 by moving 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. 【OG- The Origins　of Cetaceans】

  　　11. The word “propulsion” in the passage is closest in meaning to

  　　○staying afloat

  　　○changing direction

  　　○decreasing weight

  　　○moving forward

  　　新托福阅读词汇150题答案：(4)

  　　Paragraph 1: The deserts, which already occupy approximately a fourth of the Earth's land surface, have in recent decades been increasing at an alarming pace. The expansion of desert-like conditions into areas where they did not previously exist is called desertification. It has been estimated that an additional one-fourth of the Earth's land surface is threatened by this process. 【OG- Desert Formation】

  　　1. The word “threatened” in the passage is closest in meaning to

  　　○restricted

  　　○endangered

  　　○prevented

  　　○rejected

  　　新托福阅读词汇150题答案：(2)