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1、现在完成时与过去完成时的区别The present perfect tense&The past perfect tense,I have finished my homework.,I had finished my homework by 10:00 this morning.,现在完成时,用法结构搭配用语辨析瞬间动词 VS.延续性动词固定句型,强调过去发生的动作对现在造成的影响。2.过去发生的动作一直持续到现在，常搭配一段时间,与for或since连用.,He has just left.,He has been here for two weeks.We have lived here
2、 since 1998,现在完成时含义,肯定式 sb.+have/has done+sth.,sb.have/has not done+sth.,Have/has sb.Done+sth.?,They have already finished the work.They havent finished the work yet.Have they finished the work yet?,否定式一般疑问句式,现在完成时：句子结构,与现在完成时搭配的时间状语,ever at any time Have you ever visited New York?never not at any t
3、ime Yes,I have.No,Ive never visited New York.already 用于肯定句(用于一般疑问句表示惊讶的语气)We got there at 6:30 but she had already gone.Have you finished already?yet 用于否定和一般疑问句Has it stopped raining yet?Just 刚刚;用于不同句式He has just returned from France.,用“just/already/yet.”填空,Do you know where Julia is?-Yes,I _(just s
4、ee)her.2.What time is David leaving?-He _(already/leave)3.Whats in the newspaper today?-I dont know.I _(not read yet)4.What does Tim think of your plan?-I _(not/tell/yet).5.Is Ann coming to the cinema with us?-No,she _ the film.(already/see),have just seen,has already left,havent read it yet,havent
5、told him yet,has already seen,1._you _(hear)from George recently?2.Lin _(not meet)those people in the last few days.3.Everything is going well.They _(not have)any problems so far.4.Im hungry.I _(not eat)anything since breakfast.5.Its nice to see you again.We _(not see)each other for a long time.6.He
6、 _ the novel twice in the last few days.(read),Have,heard,hasnt met,havent had,havent eaten,havent seen,has read,请改变动词形式，并注意副词,have been to/have gone to/have been in,1.The child cant find his mother.His mother _ the supermarket.2.We _ the Great Wall twice.3._ you ever _ Japan?4.-May I speak to Dora?
7、-She _ Canada.,has gone to,have been to,Have been to,has gone to,Jake has gone to America.去过.We have been to the Summer Palace.去.了We have been in China for about a year.呆在某地(常加一段时间),Right or Wrong,I have bought this car for ten years.,buy-have,I have had this car for ten years.,瞬间动词 VS.延续性动词,The old
8、 man has died for 2 years.,The old man has been dead for 2 years.,die-be dead,since 与 for,Usage Example,since+过去时间/名词 since 1970/his arrival,since+一段时间+ago since two years ago,since+句子(过去时)since he left here,for+一段时间 for two years,固定句型,It is the first/second time.that结构中,that 从句用现在完成时。It is the firs
9、t time that I have visited the city.It was the third time that the boy had been late.This is the that结构,that 从句要用现在完成时.This is the best film that Ive(ever)seen.This is the first time(that)Ive heard him sing.,1.He has never driven a car before.Its the first time he _ a car.2.Linda has lost her passpo
10、rt again.Its the second time this _(happen)3.Bill is phoning his pen pal again.Thats the third time he _ him this evening.4.This is a lovely meal.Its the first good meal I _(have),has driven,has happened,has phoned,have had,练习,过去完成时,表示过去的过去发生的动作；都是过去发生的动作，先发生的用过去完成时，后发生的用一般过去时.常和by或since,for引导的表时间的从
11、句或短语连用,但必须要与一个表示过去时的动作相对照.,构成方式:,肯定句:sb.haddone sth.,否定句:sb.+had not done+sth.,一般疑问句:Had+sb.+done sth.?,肯定回答:Yes,sb.had.否定回答:No,sb.hadnt.,过去完成时通常连用的时间状语：by by the end of+过去的时间点 beforeeg.He had read the text before he came to school.By the end of last year,he had work in the factory for 10 years.They
12、 had planted 100 trees before last Sunday.,When 引导的从句 主语+过去完成时+By the time 引导的从句 从句谓语动词为过去式 Before引导的从句eg.When I got there,the bus had already gone.Before I met her,I had heard a lot about her.By the time we got to the cinema,the film had been on for five minutes.,基本用法,1.过去完成时表示在过去某时或某个动作之前发生的动作或存在的
13、状态,(1)我到达电影院之前电影早已经开始了.,The film had begun before we got to the cinema.,(2)他来我们学校之前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.,（3）.当我赶到学校时,已经开始上课了.,The class had begun when I got to school.,2.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
14、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,More practice,When I arrived there,they_(leave)already.The film_(start),when we got to the cinema.I _(read)the book before I started scho
15、ol.They thought that they_(try)their best.The poor girl never saw her grandpa because he _(pass away)before she was born.I _(not realize)she wasnt Chinese until she spoke.,had left,had started,had read,had tried,had passed away,hadnt realized,过去完成时与现在完成时的区别,现在完成时表示的动作发生在过去,但侧重对现在产生的结果或造成的影响,与现在有关.其结
16、构为”助动词have/has+过去分词”;过去完成时则是一个相对的时态,它所表示的动作不仅发生在过去,更强调”过去的过去”,只有和过去的某时或某动作相比较时,才用到它.,到目前为止我已经学会了3000个单词.,到这学期期末之前我已经学会了3000个英语单词.,I have learned 3000 English words so far.,I had learned 3000 English words by the end of this term.,练 习,1.I have this nice watch for two years(A)had(B)bought(C)borrowed(D
17、)lend2.The train from Beijing _ten minutes ago.(A)has arrived(B)was arriving(C)arrived(D)had arrived3.The famous writer _one new book in the past two years.(A)had written(B)was writing(C)wrote(D)has written4.I _900 English words by the time I was ten.(A)learned(B)was learning(C)had learned(D)learnt,
