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问题: 独立主格可以这样改吗?

Our homework has been finished,we went to play football.改成独立主格结构可以这样改吗?Our homework was finished ,we went to play football.不用having我觉得这题不必要用having因为has been finished与our homework 只是构成被动关系,哪里有主动关系?我的看法对吗?

解答:

这样不对,你改后的句子本身就是一个错句,并没有突出时间的先后顺序,且两个分句连接应用then或and
独立主格是特殊句式,应为Our homework having been finished,we went to play football

having在这里并不是主动,而是因为一句话里只能有一个谓语,having只能退步作非谓语
注意:这里have done (从时间先后上考虑) + be done (从主动被动角度考虑)= have been done 只是被动的含义,没有主动