过去完成时(详细讲解)PPT课件.ppt
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1、1,Unit 5 films,Grammar (A) The Past Perfect Tense,2,The present perfect tense(现在完成时),Have / has + the past participle,I have received a letter from Lily recently.,Has he handed in her homework yet?,He has just gone to Beijing.,They have never been to the USA.,We have lived here for ten years.,3,过去完成
2、时使用要点:1两个动作都发生在过去。2一个先发生,一个后发生。先发生的动作用过去完成,后发生的动作用一般过去。,Audrey had put all her effort into ballet training before she entered the film industry. Audrey had been a model before she became a Hollywood superstar. Audrey had won an Oscar for Best Actress already when she won the Tony Awards.,former acti
3、on,later action,later action,former action,former action,later action,4,Which happened first?,1. Millie ran back to school. Millie left her magazine in the classroom. 2. Simon left school late. The football game started late. 3. Daniel arrived out of breath. Daniel went to the wrong cinema.,because,
4、because,because,Millie ran back to school because she had left her magazine in the classroom.,Simon left school late because the football game had started late.,Daniel arrived out of breath because he had gone to the wrong cinema.,5,Which happened first?,1. Millie ran back to school. Millie left her
5、 magazine in the classroom. 2. Simon left school late. The football game started late. 3. Daniel arrived out of breath. Daniel went to the wrong cinema.,because,because,because,Millie ran back to school because she had left her magazine in the classroom.,Simon left school late because the football g
6、ame had started late.,Daniel arrived out of breath because he had gone to the wrong cinema.,6,4. Amy lost her purse. Amy went to the police station. 5. The program was on for half an hour. I got home. 6. She learnt many English words. She came to our school.,after,when,before,Amy went to the police
7、station after she had lost her purse.,The program had been on for half an hour when I got home.,She had learnt many English words before she came to our school.,7,Something in Greens family yesterday,Mr. Green got up at 6:30 a.m.,Mrs. Green got ready for the breakfast before 6:30 a.m.,Mrs. Green had
8、 got ready for the breakfast when Mr. Green got up at 6:30 a.m.,8,Something in Greens family yesterday,Jim finished his homework at 7:00p.m.,Mr. Green drove back home at 7:30 p.m.,Jim had finished his homework when his father drove back last night.,9,Something in Greens family yesterday,Sara finishe
9、d her computer work at 12:00 p.m.,Jim went to sleep at 10:00 p.m.,Jim had gone to sleep when Sara finished her computer work.,10,past perfect tense(过去完成时),由had +过去分词构成 表示过去的过去生的动作,构成方式:,肯定句: had+动词的过去分词,否定句: had not+ 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+ hadnt.,11,基本用法:,1. 过去完成时
10、表示在过去某时或某个动作之前发生的动作或存在的状态或表示经历或经验.,(1) 我说自从你搬到这儿以来妈妈一直为你的懒惰 而生气.,辨别:自从你搬到这儿以来妈妈一直为你的懒惰而生气.,I said mother had been angry about your laziness since we moved here.,Mother has been angry about your laziness since we moved here.,12,The film had begun before we got to the cinema.,(2) 我到达电影院之前电影早已经开始了.,13,
11、2. 过去完成时表示过去某一时间以前开始一直延续到那个时间并可能延续下去的动作。常和by或since, for引导的表时间的从句或短语连用,但必须要与一个表示过去时的动作相对照.,1) 他来我们学校之前已经在那所学校工作了三年。,辨别:他已经在那所学校工作了三年。,He had worked in that school for three years before he came to our school.,He has worked in that school for three years,14,我到达电影院之前电影早已经开始了.,The film had begun before
12、we got to the cinema.,2) 当Millie到达电影院的时候, 电影已经开始了半个小时了.,The film had already been on for half an hour when Millie got to the cinema.,15,3)到2005年,我在这工作已经五年了。,试比较:,By the year 2005, I had worked here for 5years.,我在这工作已经五年了。,I have worked here for 5 years.,到目前为止,我在这工作已经五年了。,By now, I have worked here f
13、or 5 years.,到上学期末为止,我在这工作已经五年了。,By the end of last term , I had worked here for 5 years.,到下学期末,我将完成学业。,By the end of next term, I will finish school.,16,3. 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 d
14、inner before you came back.,The class had begun when I got to school.,He had left before I got home.,17,试比较:,I had finished cooking dinner when you came back.,1. 你回来的时候,我已经把晚饭做好了.,辨别: 你回来的时候,我正在做晚饭.所以没时间和你聊天。,I was cooking dinner when you came back. So I had no time to talk with you.,18,试比较:,2. 在我到家
15、之前,他已经走了。,He had left before I arrived home.,He was getting ready to leave when I arrived home.,辨别:当我到家的时候,他正准备离开。,19,4.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
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