31. Pewter, a metal with an ancient heritage, is still practical medium for the nonprofessional metalworker.

答案：C

测试点：冠词。

分析：可数名词前应有冠词或代词。(C)后的medium是可数名词，其前虽有形容词practical，但缺少冠词。应为still a practical…。

32. According to cognitive theories of emotion, anger occurs when individuals believe that A they have been harmed and that the harm was either avoidable and undeserved.

答案：D

测试点：either…or和both…and的用法。

分析： 这两个连词词组在TOEFL考题中经常错误搭配。后文有and而无or，以此为线索，分析此处either错用，应当是both…and的结构。

33. Jackie Mclean’s recordings have shown that he is one of the few jazz musicians who style A B of playing has kept pace with the evolution of modern jazz.

答案：B

测试点：代词。

分析：名词前面应当用形容词性的代词修饰、限制。此处，名词style前应当用所有格的whose，而不用主格的who。

34. How Native Americans developed corn is a puzzling, for no wild corn has ever been discovered, and it grows only where people plant and tend it.

答案：B

测试点：词性。

分析：看到句中的系动词its应想到其后的a…是表语，此表语由a+名词构成。puzzling是形容词，应用名词puzzle。

35. A principle of manager is to ensure that every action or decision achieves a carefully planned goal.

答案：A

测试点：近义词。

分析：manager用以指“人”，前面应有冠词。a或the。此处应用指“事”的名词management

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