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whEn Doing是什么结构

可以理解为连词加动名词的结构.一般都是做状语,表示当的时候.

这句话when talking about ..的主语就是前面的主语,这是语意造成的,是正在谈论的时候,省略了he was,你查省略句,别查现在分词

朋友,我可以明确地告诉你,英语中,是存在“when+doing”这种表达法的.当前后主语一致时,可以省略谓语动词,用when doing表示.比如:when doing the exam,we should be careful.当考试时,我们应该仔细一些.实际上,上面句中,省略了“we are ”,因为这与后面的主语相同,这里可以省略,所以就变成了“when+doing”这种结构了.你明白了吗?如有问题,请及时追问,

这种用法是正确的,when playing basketball game 在这个句子当中,就等于when they are playing basketball game.when+doing 在句中,就相当于when +时间状语从句

进行时态吧.比如:When leaving, just remind of me to see you off.走的时候,提醒我一声去送送你.

when 是当..时候I was doing homework when i father came back yesterday当我爸回来时,我正在做作业

when doing:when teacher came in the students were talkingwhile doing :i was dancing while my sister was singing前者是:A在做什么(打电话等时间较多的事情)的时候,发生了一件事(短时间的,比如有一个很大的声音发出来了)后者:两者同时做,时间差不多的``

这句话when talking about ..的主语就是前面的主语,这是语意造成的,是正在谈论的时候,省略了he was,你查省略句,别查现在分词

be doing sth…when正要做某事,恰好 when 后面的那件事情发生 例句:1、I was watching the football match when he came in.当他走进来的时候我正在看足球赛.2、He asked me what I would be doing when he came the next day. 他问我当他第

只要主语 和 状语从句 主语一致 都可以用 分词作状语 来代替状语从句 , 可根据情况 用现在分词 现在分词的完成形式 过去分词 等 作状语.如 when passing the house, he saw a girl playing the piano.= when he passed the house ,he saw.when asked ,he didn't answer .= when he was asked ,he didn't answer.

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