题目内容
5.It's important for the figures ___regularly.( )A. | to be undated | B. | to have been updated | ||
C. | to update | D. | to have updated |
分析 句意:经常更新数据是很重要的.
解答 答案:A.
分析句子结构可知,动词update(更新)的逻辑主语是the figures(数据),它们之间构成动宾关系,the figures应该是被update,所以应该用被动式,排除C、D;再根据句子中的副词regularly可知,此处应该用动词不定式的一般式的被动式,即to be updated,故A正确.
点评 本题考查的是不定式的被动式.做题时,先找不定式的逻辑主语,看它们之间是主动还是被动关系,确定语态;然后再看不定式所表示的动作跟主句的谓语动词之间的先后关系,确定时态.
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