逍遥学能 2015-01-16 20:41
【—过去完成时】下面是老师为同学们带来的关于过去完成时的具体介绍。供同学们学习的参考。
过去完成时态
1)过去完成时态的构成:
肯定式:had + 动词的过去分词
否定式:hadn't + 动词的过去分词
疑问式:Had … + 动词的过去分词
简略回答: Yes, 主 + have/has had.
No, 主 + had现在完成时的用法
过去完成时的用法:
1、表示在过去某一时间或动作之前已经发生或完成的动作。 他表示的时间是"过去 的过去 "常与by last year, by the time of yesterday,等连用。如:
She said she had seen the film 4 times.
When Mr Li got to the classroom, all the students had begun reading.
By the time they arrived, the bus had left.
2、表示 从过去某一时间开始一直延续到过去另一时间的动作或状态。常与for (后跟段时间)或since (后跟点时间)等连用.如:
She had worked in this school since it opened 25 years ago.
上面是老师为他们带来的关于过去完成时的介绍,同学们有不懂得要记得多看看哦!