历年托福考试语法真题全面解析24
36. A good exercise program helps teach people to avoid the habits that might shorten the lives.答案：D
测试点：冠词／代词。
分析：复数名词在泛指时前面不加任何冠词。lives是复数名词，其意义又并非特指哪些人的生命，故the为多余。或者亦可以用their代替the，与前面的people相呼应。
37. Classicism as a doctrine seeks what is universally truth and good.
答案：C
测试点：词性／并列结构。
历年托福考试语法真题全面解析24
分析：连词and两边的成份应同词性、同性质。这里and一边是形容词good，另一边truth却是名词。应为形容词true。38. Researchers at the University of Colorado are investigating a series of indicators that A B could help themselves to predict earthquakes.
答案：D
测试点：反身代词。
分析：只有当主语和宾语为同一人物或事物时，宾语成分才可用反身代词。此句为复合句，定语从句的主语为indicators，而themselves指的是主句的主语Researchers，故应为them。解题要点； 反身代词为TOEFL考题中常考的题型。见到划线的-self或-selves结尾的词，应注意它在句意上主语(动作施行者)是否一致。
39.Fungi are important in the process of decay, which returns ingredients to the soil, enhances soil fertility, and decompose animal debris.
答案：D
测试点：并列结构。
分析：与第37题类似，本题中的and连接了并列的谓语部分。and前用了returns和enhances,它后面也应与之一致，用第三人称单数的decomposes。另请注意fungi是fungus的复数形式，(A)正确。
40. A common use with gold in the nineteenth century was as a standard for the value of money.
答案：B
测试点：介词。
分析：根据句意，(B)with应为of. use of gold指黄金的用途。注意TOEFL的改错题中介词时常用错，需根据句意确定介词，是否正确。
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