历年托福考试语法真题全面解析21
21.It has been calculated that the Earth’s circumference around the equator is over forty longer miles than the circumference around the two poles.答案：D
测试点：词序。
分析：表示数量、程度的形容词(或副词)比较级的正确语序为：数词十量词+比较词+than，即forty miles longer(than…)。
22. A fish must constantly to gulp water in order to keep a current flowing through its delicate gills.
答案：A
测试点：词形。
分析：看到must或call，may这几个情态动词，要注意其后应接原形的动词。此处to gulp是不定式，应去掉to。
23. Maria Martinez, a Pueblo Indian, rediscovered the ancient art of Pueblo black pottery A and, by teaching the process to family and friends, develop a lucrative business.
答案：D
测试点：并列结构／时态一致。
分析：主谓数的一致本句比第20题多了两个插入语，但仍可看出其基本结构也是and连接并列的谓语部分(A)和(D)。主语是第三人称单数的Maria Martincz，谓语动词不能用原形的develop。故(D)错，应用developed与rediscovered并列。
24. Muscular motion is caused by the stimulate of specific nerve cells in the brain and spinal cord.
答案：B
测试点：词性。
分析：定冠词the后要接名词而stimulate是动词，应用名词stimulation或stimulus。
解题要点：注意the…of之间的划线词是否为名词。
25. The first libraries in the North American colonies was established in Massachusetts in the year 1638.
答案：A
测试点：主谓数的一致。
分析：后文助动词was为单数，说明其主语也应是单数。应为library。注意此处library的单、复数与前面的first无关。
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