http://fujian.hteacher.net 2021-11-09 15:35 福建教师资格证 [您的教师考试网]
秘诀三、being done 表示“正在被”,一般不作状语,只作定语。非谓语动词的完成时形式to have done或having done强调该动作发生在句子谓语动词之前。
例5.to reach them on the phone, we sent an email instead.
A. Fail B. Failed
C. To fail D. Having failed
【解析】根据句意“我们没有打通电话,就给他们发了个邮件”,没有打通电话应该发生在发邮件之前,所以用having done,答案为D。
例6.Tim Bemers-Lee is generally considered _____ the World Wide Web, on which all the information is shared by all.
A. to have founded B. having founded
C. founding D. to found
【解析】根据句意,Tim Bemers-Lee创立万维网应该是过去的事情,而且be considered后面应该用动词不定式,所以应该用to have done,答案为A。
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