人教新课标必修2 Unit1 Cultural relice Learning about language 过去完成时课件(34张PPT)

课件34张PPT。过去完成时即： 过去的过去构成否定句: had not+ 过去分词肯定句: had+动词的过去分词 一般疑问句:had+ 主语+ 过去分词肯定回答: Yes, 主语+ had. 否定回答: No, 主语+ hadn’t.I got homeMy little brother went to bedBy the time I got home, my little brother had gone to bedBy the time I got outside, the bus had already left.1. cleaned the blackboard2. closed the windowhad cleaned the blackboardclosed the windowShe had cleaned the blackboard before she closed the window.After she had cleaned the blackboard , she closed the window.1. ate an apple2. slepthad eaten an applesleptShe had eaten an apple before she slept.After she had eaten an apple , she slept. 2. played ping pong1. did his homework played ping ponghad done his homeworkHe had done his homework before he played ping pong.After he had done his homework , he played Ping pong.主语+had + 动词的过去分词 (p.p.)定义：过去完成时：强调过去某一个动作发生在 另一个动作前常常用过去完成时态。1.在老师进入教室前, 李磊擦了黑 板.LiLei _____ (clean) the blackboard before the teacher came into the classroom.had cleaned2. 当我们到那儿时火车已经离开了。The train _____ (leave) when we arrived there.had leftWe use it to talk about an action that happened before another action in the past.构成： 一：过去完成时表示在某一动作之前已经完成的动作. 过去的时间由before, after, when, by the time引导的时间从句表示出来.1. 我在你回来之前就已经把晚饭准备好了.2. 当我赶到学校时, 已经开始上课了.3. 在我到家之前他已经走了.I had finished cooking dinner before you came back.The class had begun when I got to school.He had left before I got home. 二 在told, said, knew, heard, thought等动词引导的宾语从句中，一般用过去完成时。 1. 她说她从来没有去过巴黎。 She said (that) she had never been to Paris. 2. 我觉得我以前见过他。 I thought that I had seen him before. 3. Tom说他借了这本书两周了。 Tom said he had borrowed the book for 2 weeks. kept试作比较：昨天我见到王先生了．自从他离开北京我们就一直未曾见过面。 I saw Mr. Wang yesterday. We had not seen each other since he left Beijing. 自从他离开北京我们就一直未曾见过面。 We have not seen each other since he left Beijing. 试比较： 1. 我在这工作已经五年了。(for five years) 2. 到2014年年底，我在这工作已经五年了。（By the end of ）1. I have worked here for five years. 2. I had worked here for five years by the end of 2014.Competition: If you think you can, you can. Go-Go加油！用所给动词的正确形式填空．(10’/1)1.The poor girl never saw her grandpa because he _____ (pass away) before she was born.2. She_____ already_____ (clean) the blackboard before I entered the classroom.had passed awaycleanedhad句型转换 (10’/1) He had stood up before he cleaned the window. _____ he had stood up, he cleaned the window. His father went to Beijing. He arrived home. (用before合并句子) His father_____ _____ ____ Beijing before he _____ home.Afterhad gone toarrived按要求改写下列句子．(5’/1) Simon had finished his homework before he watched TV. 否定句： 疑问句： 肯定回答： 否定回答：Simon hadn’t finished his homewo ... ...