例句1:Finishing doing his homework, the boy played football.
Finishing doing his homework = ( 过去时间状语从句)When he finished doing his homework...
现在分词短语表示过去时的时间状语从句。
例句2:Given a difficult maths problem , I will think it over and solve it.
Given a difficult maths problem = ( When I am given a difficult maths problem ...
过去分词短语作时间状语,它在这里表示将来。
追答谢谢网友好评
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