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1、Unit 12 Life Is Full of the unexpected Section A,Are there something unexpected happened in your life? Share with us.,Discuss the questions:,Look at the pictures tell us what happened to the girl.,Life is full of the unexpected,Practice the conversation with your partner.,Role-play conversation:,Rea
2、d the passage and tell us what happened in the mans life.,Reading:,World Trade Center,World Trade Center,过去完成时可以表示过去某一时刻 或某一动作之前完成的动作或呈现 的状态。也就是说发生在“过去的 过去”。,定义：,构成：had过去分词,过去完成时,6:00 7:00 现在,By the time I got up, my sister had already washed all the clothes.,1.我到家时她已经睡了。,By the time I got home, she
3、 had already gone to bed.,2.到昨天晚上时消息已传遍全球。,By yesterday evening the news had spread through the world.,3.他走以后我找到了那封信。,I found the letter after he had gone away.,We reached the cinema late. The film had already been on for ten minutes.,4.我们到电影院晚了,电影已经开始十分钟了。,过去分词的构成：,1. 规则动词的变化 (regular verbs )：,a) 一
4、般情况下在动词后面加 ed,work - worked,play - played,b) 以 e 结尾的动词直接加 d,use - used,refuse - refused,c) 以辅音字母加 y 结尾的动词，把 y 改 i 再加 ed,study - studied,carry - carried,d) 以重读闭音节结尾的，前面有单个元音字母时，双写辅音字母，再加 ed,stop - stopped,drop - dropped,过去完成时的构成：由助动词had + 动词的过去分词（V.pp),admit - admitted,beg-begged,drop; prefer; plan;,
5、常用的时间状语等标志词：,1、by，before，when， by the time等构成的短语或引导的从句。,Eg. 1)By the time she came to the bus stop, the bus had already gone.,2) We had finished the task before last midnight.,3) When I arrived at the post office, I found that I had left the letter at home.,4) After I had finished my homework, I wen
6、t to bed.,3、 从过去开始，一直持续到过去的另一时间的动作、状态。常用since，for。 E.g. She said that she had learned English for years since he came to our school. 注意：瞬间动词不能和一段时间状语，及since， for引导的从句和短语连用。,2、 由said，told，knew，heard，thought 等引导的宾语从句中。 E.g He told me that he had heard of it. I thought my homework had been finished. Bu
7、t I didnt.,构成：had过去分词,否定式：,主语+hadnt+p.p.+.,疑问式：,Had+主语+p.p.+?,肯定答语：,Yes，主语+had,否定答语：,No， 主语+hadnt,肯定式：主语+had+p.p.+.,构成：had过去分词,1：I had learnt 5000 English words by the end of last week. 2：I hadnt learnt 5000 English words by the end of last week. 3：Had you learnt 5000 English words by the end of last week? 4：How many English word had you learnt by the end of last week?,
