英语六年级【知识精讲】8.动词时态(6)过去完成时课件PPT

这是一份英语六年级【知识精讲】8.动词时态(6)过去完成时课件PPT，共14页。PPT课件主要包含了我醒来时雨已停了，过去完成时构成，她丢失的钥匙找到了，答案A等内容，欢迎下载使用。
过去完成时表示过去某一时间或动作之前已经发生或完成了的动作，它表示动作发生的时间是“过去的过去”。
A B
6:00 7:00 现在
By the time I gt up, my sister had already washed all the clthes.
当我起床时我姐姐已经洗完了所有的衣服。
基本构成：had+过去分词如：When I wke up, it had already stpped raining. Befre he arrived, the train had left. By six ’clck yesterday evening, I had finished my wrk.
他到达之前，火车已经离开了。
到昨天晚上六点，我已经完成了我的工作 。
1.肯定句：主语+had+过去分词+其他.如：She fund the key that she had lst. 2.否定句：主语+had+nt+过去分词+其他.如：He hadn't finished reading the bk by the end f last mnth.
到上个月末他还没看完这本书。
3.一般疑问句：Had+主语+过去分词+其他？肯定回答：Yes, 主语+had.否定回答：N, 主语+hadn't.如：He had finished his hmewrk by the time yu gt there.
Yes,he had./ N,he hadn't.
Had he finished his hmewrk by the time yu gt there?
1.用by和befre引导的短语，如：by that/the time，by …'clck，by the end f...，befre 1993等表示。如：She had learnt 2, 000 English wrds by the end f last mnth.
到上个月末，她已经学了2 000个英语单词。
2.用when和befre等引导的状语从句表示。如：I had seen her befre she saw me. 3.用he said，he knew或he asked等表示。如：He said he had never been t Nanjing.
在她看见我之前，我已经看见她了。
他说他从没有到过南京。
择优录取。 (将正确答案的序号填在题前括号中)( )Tina ___________ her hmewrk when I came in.A. had finishedB. finshC. have finished
用动词的适当形式填空。He said he _____________already_________(give) the bk t the teacher.
答案： had given