初中英语语法系列-过去完成时.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,无锡市东降中学计静燕,simple past tense and present perfect tense,（,Simple past tense,一般过去时）,1.He has heard the song before.,（,Present perfect tense,现在完成时）,3.He said he had heard the song two years before.,（,Past perfect tense,过去完成时）,2.He heard it two years ago.,Simple past tense,一般过去时,表示在过去某个时候发生的动作或存在的状态,.,I went to school by bike this morning.,I was at school yesterday afternoon.,一般过去时,结构,:,am,is,are-was,were,V-ed,用法：,three days ago,Yesterday,Last,a moment ago=just now,in the past,in 1997,when+,过去时句子,一般过去时,时间状语：,Lets do some exercises:,1.It is said that the old church _(build)from the year 1845 to 1848.,(2005,无锡市中考）,2.In China,the number of Internet users _(be)55 million in 2002.,(2005,无锡市中考）,3.In1946,UNICEF _ (set)up to help children whose lives were changed because of the Second World War.,(2007,无锡市中考）,was built,was,was set,Present perfect tense,现在完成时,现在完成时,结构,：,助动词,have/has+,动词的过去分词,用法,1,：,1.I have already finished my homework.,表示过去发生的某一动作对现在造成的影响或结果,N,P,F,3.He _(lose)his key,and he cant get into his house now.,has lost,2.I have never seen him before.,现在完成时,用法,1,：,already,yet,just,ever,never,before,表示过去发生的某一动作对现在造成的影响或结果,时间状语：,两“去”,Have/has been(to),Have/has gone(to),去过某地,去了某地,两“去”,have/has been to,have/has gone to ,去过某地,去了某地,have/has been in,来,/,去,/,到,/,在某地,他来中国两年了,He has been in China for two years.,have/has,been(to),去过某地,我以前从未去过那儿,他们去过英国两次了,你曾经去过美国吗？,你去那里了？我去老师办公室了,I have,never,been there,before,.,I have been to England,twice,.,Have you,ever,been to the USA?,-Where have you been?-I have been to the teachers office.,another place,have/has gone to,去了某地,Tom isnt here.He _ Beijing.,2.-Where is Mr.Li?,-He _ Beijing,and he will come back in two weeks.,has gone to,has gone to,another place,现在完成时,用法,2,：,表示过去已经开始，并持续到现在（包括现在在内）的动作或状态,N,P,F,时间状语：,1.for+,一段时间,2.since,过去时间点,yesterday,last,three days ago,1997,this morning,then,since,过去时句子,3.how long,since I was born,We have learned English for six years.,He has worked in the factory,since he left school.,They have lived in Beijing since 1980.,How long have you studied in this school?,现在完成时,用法,2,：,1.,我们学英语六年了,2.,自,1980,年起他们就住在北京了,3.,自他毕业起他就在这个工厂工作了,4.,你在这个学校学习多长时间了,have,keep,be away(from),be in,be on,be dead,be a member of,be in,be in,遇到表示一段时间的时间状语,瞬间动词必须改成延续性动词或短语。,buy _ borrow _,begin _ leave _,die _ come/go to _,join _,arrive at/reach/get to _,现在完成时,用法,2,：,Please translate the sentences into English,李雷买这本字典,3,天了。,Lilei _ for three days.,2.,他们搬到这儿他的爷爷就去世了,His grandfather _since they moved here.,3.,他两年前就离开家乡了,He _ since two years ago.,has had the dictionary,has been dead,has been away from his hometown,现在完成时,时间状语：,in the past/last few years,recently,in recent years/months/days,by now/so far/up to now,1.There _(not be)much rain in my hometown since the beginning of this month.,(2005,无锡市中考）,2.It _,（,snow)twice in his hometown since a week ago.,(,2006,无锡市中考）,3.So far,China _(develop)about 1,360 kinds of green food.,(2007,无锡市中考,）,4.Look,the small park here _(turn)into a threater.,Lets do some exercises:,hasnt been,has snowed,has developed,has turned,一般过去时与过去完成时,1.A:I _(buy)a dictionary.,B:When _ you _(buy)it.,A:Last night.,B:Where _ you _(buy)it?,A:In the new bookshop.,did buy,did buy,have bought,2.My friend _(buy)a car.,He _(buy)it two years ago.,has bought,bought,past perfect tense,过去完成时,过去完成时,结构：,助动词,had+,动词的过去分词,用法一：,动作在过去某一时间或动作之前已经发生或完成，动作发生的时间是“过去的过去”,P,N,F,时间状语：,by+,过去时间,by the time+,过去时的句子,when/before+,过去时的句子,过去完成时,用法一：,4.By the end of last year,they had built more than ten bridges.,3.She had to go back to shool,because she has left her book there.,2.The train had already left when arrived at the station.,1.She had been a model before she became a Hollywood superstar.,动作在过去某一时间或动作之前已经发生或完成，动作发生的时间是“过去的过去”,用法二：,过去完成时,表示从过去某一个时候开始持续到过去的另一时间动作或状态,1.The film had been on for ten minutes when we arrived at the cinema.,2.She had worked in the factory by the end of last year.,P,N,F,Lets do some practice:,1.When his grandmother saw again,he _(grow)up into a tall yound man.,(2005,无锡市中考）,2.Xiao Wang didnt want to tell me anything about what he _ just _(hear).,(2006,无锡市中考）,3.By the time she was fifteen,Kitty _(teach)herself a foreign language.,(2006,无锡市中考）,had taught,had heard,had grown,Present perfect tense and past perfect tense,He _(see)the film twice,so he didnt go to the cinema with us.,He _(see)the film twice,so he knows it very well.,had seen,has seen,2.Its said that they _(live)there together since then.,Mr Green said that he _(buy)the book the day before.,Mr Green said that he _(keep)the book for two days.,have lived,had bought,had kept,When and where did the snowstorm happened?,What happened in the snownstorm?,What has the government done?what will you do?,Thanks for listening,