SAT语法改错题中动词知识点讲解

2022-06-09 19:46:45

  动词里面,SAT改错题主要考三个考点:主谓搭配一致;平行结构;时态语态一致。

  主谓搭配一致主要就是指谓语的单复数要和它所对应的主语的单复数一致。比如有这么一道题:

  The existence of consistent rules are(A) important if(B) a teacher wants to run (C) a classroom efficiently(D).NO ERROR(E)

  很明显这道题目当中主语是一个A of B结构The existence of consistent rules,这种结构的中心词应该是前面一个词A即existence,它是单数,而后面的谓语动词却是复数are,所以主谓搭配不一致了,答案应该选 A.再请看下面一道题:

  Like every other(A) sociological system, the commune has(B) a way of functioning that may be easily upset(C), either slightly or extreme(D). NO ERROR(E)

  这道题目所考察的就是平行结构,因为either or所紧连接的两个词在语法功能和时态结构上应该保持一致,前面是副词slightly,所以后面也应该是副词extremely.答案选D.

  时态和语态一致即指前后的时态和主被动的语态应该保持一致,比如:

  Many(A) biographers had stated(B) that Samuel Langhorne Clemens changed(C) his name to Mark Twain to echo the riverboat captain’s call ascertaining the safe navigation(D) depth of the Mississippi River. NO ERROR(E)

  很明显这句话的主句应该是用一般过去时而不应该是过去完成时,所以答案应该选B,将had去掉。

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