学英语四级改错题常考要点-谓语动词(2)

网络资源 Freekaoyan.com/2008-04-25


(二) 谓语动词的时态
①、主要考察时间状语

例 The metal aluminum has been first isolated early in the nineteenth century.
   A        B  C     D
分析:Metal, aluminum同位语,in the nineteenth century为明显表示过去时间的状语, 因此应该用过去时态,把has been改为was

②、For和since的区别
区别一:For 后面使用时间段,since 后面使用时间点
区别二:Since 只能用在现在完成时态,For 最主要用在现在完成时和一般过去时
  I has been a teacher for three years.
  I has been a teacher since 1996.
  I was a teacher for three years. 这种表达可以,for three years表示一段时间,was 表示过去做了三年,现在不是老师了
例: Since 1921 the budget of the United States became
   A      B             
  the primary responsibility of the president.
     C    D
分析:A错,应改 In. since一般要求主句用完成时态,而句中谓语动词为过去式,其时间状语应与之呼应,故改Since为In。
例:Adella Prentiss Hrghes served as manager of
             A  B  C  
  the Cleveland Orchestra since fifteen years.
            D
分析:D错,应改为for。since引导时间状语时,主句谓语动词为一般完成时;主句谓语动词为一般过去时要用介词for;而且一段时间用for, 而不是since。

52. In general, prawns lived in shallow coastal waters or in streams. 
   A       B        C     D
自然现象和客观事实用一般现在时态,live

(三) 谓语的语态
语态主要表示是主动语态还是被动语态。
有四组动词是改错题中常考的:
①、prove
My advice proved to be wrong. 我的建议被证明是错的
尽管是被证明,但习惯上用主动;

例:A majority of the reports received from people claiming
                      A 
  to have seen the legendary Loch Ness Monster have proven to be
    B                  C
  mistakes, misconceptions, or they were being tricked.
                  D
分析:D错,应改为tricks。并列连词 or在此连接名词,如果把D理解为并列句,不仅时态不对,语义也有问题,故将整个句子改为名词。have proven to be是正确的。

②、Locate,Situate
这两个词可以用作主动,表示把…放置在…地方;确定…的位置
  Bats locate obstacles.蝙蝠确定障碍物的位置
这两个词也可以用作被动
  My school was located near the river.
区分locate的主动和被动比较难,但是有一个技巧存在:locate如果用作主动,后面必须跟宾语
例:The center of gravity of the human body ---- behind the hip joint.
   (A)locates
   (B)locating
   (C)to locate
   (D)is located
分析:空格处显然缺谓语动词,故首先排除不能作谓语的B和C。动词locate后面没有宾语,所以用作被动,表示“位于”,所以D为正确选项。
③、表示需要概念的动词
need, want, require等
My watch needed repairing
My watch needed to be repaired.
④、表示人的情感的动词
move, annoy, surprise, please等
He is so moving.  他令人感到感动。
He is greatly moved. 他感到非常感动。
主动和被动技巧总结:
如果句子中有一个“过去分词+by”, 如果断定它是谓语的话,前面必然有be动词
例:The Tennessee Valley Authority has chartered by the
                 A     
  United States Congress in 1933 to construct dams,
                 B
  power structures, and flood-control works along
                    C
  the Tennessee River and its tributary streams.
                D
分析:A错,应改为has been chartered。由信号词by可知前面的谓语动词为被动语态形式。

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