had been done 怎么用?

来源：学生作业帮助网编辑：作业帮时间：2024/04/29 21:36:56

had been done 怎么用?
had been done 怎么用?

had been done 怎么用?
已经完成
The work has been finished.

已经做了。表过去完成

全部展开

这个是过去完成时的被动语态，其构成是：had + been + 及物动词的过去分词。过去完成时一般用于：
①表示发生在过去的动作对过去晚些时候造成的影响或结果
②过去某一动作一直持续到过去晚些时候将来可能还要延续。句中的动作发生在过去之前（过去的过去），即过去完成时动作发生在过去的过去。
He said he had been to Beijing twice. 他说他已经去过北京两次。（因为“说”said就是过去式，而去北京的动作发生在说said 的过去，所以用过去完成时。
所以，根据句意来，如果是过去完成时，而且动作是【被发生】的，那就需要用had been done的结构。
例句：
The classroom hadn’t been cleaned before the teacher came. 　
老师已经到了，教室还没有打扫。（教室是被打扫）　
The tickets had been sold out berore I came to the cinema.
当我到电影元的时候，票已经售完了。（票是被售完）

收起

had been done 怎么用? have done.have been done .had done.had been done 有什么区别?怎么用?有什么结构? has been done 与had been done要怎么用啊 what had been done had been done. 请用had been done造几个句子,并翻译 has been done,had been done 的区别是什么? having done和having been done怎么用如题 had been done和 had done有什么区别呢? 英语had done 和had been done区别 to have been done 怎么用 will have been done怎么用 had been doing 和had been done有什么差别 had been doing 和had been done有什么差别? had been done 用于什么时态? 什么情况下用主语+had+过去分词(done)什么时候用 /主语+had been+过 Asked if she would have done the same had children been involved怎么翻译? 分词作状语：doing ,done ,having been done ,noe having done ,都怎么用?not having done 1.在句子中什么时候使用副词?2.在英语中,什么时候用had been doing had done has been doing has done请分别举例,