题目内容
7.________ the work,they have to stay there for another two weeks.( )A. | Not completing | B. | Not completed | ||
C. | Not having completed | D. | Having not completed |
分析 因为没有完成工作,他们不得不又在那待了两个星期.
解答 答案C complete the worke与句子主语they的关系是主动的,应该用现在分词形式,可以排除B项.notcomplete的动作发生在haveto stay之前,所以应该用完成式的现在分词,可以排除A项.D项的否定形式不对,非谓语动词的否定式一般是在其前加not.故答案为C
点评 对于非谓语动词的考查,应该学会先判断语态,根据主被动关系可以排除部分干扰项;再根据时态排除部分干扰项,对于非谓语动词否定式的表达归纳如下:(1)不定式to前面加not (2)过去分词前面加not(3)doing和havingdone的前面加not.
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