31. During the 1600’s skilled shoemakers scarce were in what is now the United States. ! B, q4 u. Q3 z# A0 e( E( X
' Q2 }1 U: U& m8 M6 ~! o答案:C , n- `* V0 q2 s2 R3 S. p$ M! R7 M
测试点:词序. 9 q' E5 d9 x% n. t
分析:形容词scarce应置于系词were的后面,作表语. $ C( K. {+ W! Q8 F+ D
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32. If a atom loses any of its electrons, it becomes positively charged and can combine chemically with other atoms.
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s9 } K# ~9 U- J3 m5 x5 Q6 U$ C答案:A 8 `) z W' r$ S" y+ s( ?/ C+ D
测试点:冠词. 4 C2 b! v2 W2 ?
分析:a和an的用法atom是以元音开头的名词,前面冠词要用an而不用a.
% J% C8 d3 l$ @) o' D9 {解题要点:注意划线的冠词a或an是否用错. ' [2 C* a6 J& H# m9 d% P$ e
6 O# I! q$ r& ^33. The National Education Association conduct extensive research on a great many aspects of education.
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答案:A
$ t: x9 S5 v. R5 ?1 V( u测试点:主谓数的一致。
/ q$ e$ G6 F5 O0 ~. l分析:主语Association为单数,谓语动词也要用单数形式。应为conducts。 4 H" ^- h2 l2 |2 N4 H: F6 ~! C. e: C8 w
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34. The pain-killing agent most commonly administered in dentistry is the local anesthetic, who produces loss of feeling only in a specific area. 8 E0 x0 a4 y; S+ S$ ?( L
, V& D1 J: F# g# Y! r答案:C
- k T+ h$ x6 p7 ?8 m测试点:从句连接词who和which的用法.
; Q8 k S) Y/ W' n( k分析:定语从句修饰说明anesthetic(麻醉剂),作主语的关系代词,指代的是物不是人,不能用who.应为which.
7 }2 p6 L$ H. f7 Z) ~解题要点:who/which混淆用错的题型在TOEFL考题中很常见.遇到这两个关系代词划线时,应务必认清它所限定的先行词是人还是物.
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35. Certain types of computers work properly only in environments with controlled precisely temperatures.
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答案:D 9 b3 A" p( ^9 W3 d, Z0 A
测试点:词序.
) r$ n9 K E# k分析:分词作定语时,与其所修饰的名词之间不要加入副词.应为precisely controlled(temperature)。 |