例:1996年6月四级第28题
If I correct someone, I will do it with as much good humor and self-restraint as if I were the one ________.
A) to correct B) correcting
C) having corrected D) being corrected
结合选项来看,全句的意思是:如果我去更正别人的看法,我会尽可能用幽默和自我克制的态度去做,就象是我被别人更正一样.这里,要求填入一个表示正在被人更正的意思的选项,答案是D)。
having been done和having done的道理是一样的,只不过前者的分词动作是主动动作,后者的分词动作是被动动作。即,如果要表达的被动动作是从过去开始的,一直延续到现在,则必须用完成式表示,而过去分词没有完成形式,所以使用Having been done.
例:There seemed little hope that the explorer, ________ in the tropical forest, would find his way through it.
A) to be deserted B) having deserted
C) to have been deserted D) having been deserted
答案是D) having been deserted.这是现在分词的完成式(被动态)在句中做状语,具有原因和时间意义。
2. 注意事项
1) 不及物动词的过去分词有两种形式:
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