历年托福考试语法真题全面解析68
16. Porcelain is not a single clay, and a compound of kaolin, ball clay, feldspar, and silica.答案:C
测试点;not…but…用法.
分析:看到not…,应想到后文有表示转折关系的but与之连用,不能用表示并列关系的and连接.
17. The bison, know for the hump over its shoulders, is usually called a buffalo in North America.
答案:A
测试点:词形
分析:分词短语作后置定语.know是动词原形,而修饰主语应当用分词应为known.
18. Perspiration, the body’s built-in cooling mechanism occurs as a natural reaction to nervousness, intense heat, or vigorously exercise.
答案:D
测试点:词性/并列结构.
分析:连词or两边的成份应同词性、同性质,故exercise应与nervousness和heat一样,是名词而非动词。修饰名词应当用形容词vigorous,不用副词vigorously。
解题要点;遇到划线的-ly结尾的副词时,应首先考虑它是否与其形容词形式错用.
19. Because of the rising cost of fuel, scientists are building automobile engines who will conserve gasoline but still run smoothly.
答案:D
测试点:who和which的用法.
分析:定语从句修饰的engines是物而不是人,作为从句主语的关系词不能用who,而应为that或which.
20. The primary function of a sonometer is to calculate and demonstrate the relations mathematical of melodious tones.
答案:C
测试点:词序.
分析:单个的形容词修饰名词时,应放在名词前面.应为mathematical relations.
解题要点;形容词(定语) +名词这一结构的词序颠倒是TOEFL常考题型。
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