题目内容
20._______many times,they succeeded _____ the experiment.( )A. | Having tried,in doing | B. | Tried,in doing | ||
C. | Having tried,to do | D. | Tried,to do |
分析 尝试了许多次之后,他们成功地做成了那项实验.
解答 答案:A
此处在句中作时间状语,由于动词try与其逻辑主语they之间是主动关系,所以应使用现在分词形式,故排除B.D;根据句意可知,此处分词表示的动作发生在谓语动词所表示的动作之前,所以用现在分词的完成式;第二个空考查的是固定搭配succeed in doing sth.(成功做成了某事)的用法,故选A.
点评 做本题时,首先需要掌握现在分词的完成时以及过去分词的意义及用法区别,其次应掌握固定搭配succeed in doing sth.的用法
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