现在完成时与一般过去时比较课件.ppt

1、现在完成时与一般过去时比较一般过去时和现在完成时的区别：现在完成时是表示过去的动作与现在的联系，主要说明的是现在的情况和状态；而一般过去时则强调动作发生在过去某一时间，与现在不发生联系.e.g.vWe havent seen him since last year.我们自从去年以来一直未见到他。（现在还未见到）vWe didnt see him last year.我们去年没见到他。（现在不一定未见到）Who has opened the door?谁把门开了？（现在门还开着）Who opened the door?谁开的门？(指过去，与现在无关。现在门是关着还是开着，没有说明。)Have y

2、ou had your lunch?你吃过午饭没有？（意即你现在不饿吗？）Yes,I have.吃了。（意即我现在饱了，不要再吃了。）When did you have it?你什么时候吃的？（说话人感兴趣的是“吃”这一动作发生在时。）2）用法不同 I had supper an hour ago我一小时前吃的晚饭。（表示过去的动作）I have just had supper我刚刚吃过晚饭。（强调对现在的影响我不饿）He was a teacher then他那时是个教师。（表示过去的状态）He has been a teacher since then他从那时起一直当教师。（他现在还是教师

3、）yesterday,once,last week,.ago,in 1980,in October,just now等具体的时间状语具体的时间状语。for,since,so far,ever,never,just,yet,till,up to now,always等不确定的时间状语不确定的时间状语。一般过去时和现在完成时的区别：3）所用时间状语不同 The children went to the zoo last Sunday 上星期天，孩子们去了动物园。I havent read the book before 我以前没看过这本书。They lived here in 1980 他们一九八

4、年住在这里。一般过去时常与具体的时间状语连用，现在完成时常与模糊的时间状语连用，或无时间状语。Make up sentences,please!go last yeareat this morningleave yesterdaygive a moment agoride just nowwrite last nightcatch when I was only 10make a mistake the day before yesterdaypay the next morningsweep after classLast SundayCorrect the passage:Last Sun

5、day,Ted and his father are at home.They movd to a new house.His father wantted to put the books in some boxes,but he cant find any boxes.Ted telled him the boxes was in the next room.Then he bought these boxes to his father.movedwantedcouldnttoldwere broughtwereExercises for the present perfect tens

6、e:7.Is Tom doing his homework?No,he _his homework already.(finish)8.Do you know Miss King?No,but I _ her before.(hear of)9.What about the film?Sorry,I dont know.I _ it yet.(see)10._ you ever _ to the Great Wall?No,never.(go)11.How does he get on with his classmate?Oh,he _ a lot these days.(change)12

7、.Help yourself,please.No,thanks.Im full.I _ just _ three eggs.(eat)alreadyhas finishedbeforehave heared ofyethavent seeneverneverHavebeenthese dayshas changedjusthaveeatenChoose the right answer,please!()1.How long has Mr Turner worked in this school?A.30 years.B.Since it was open.C.5 years.()2.What

8、 month is it now?A.October.B.November.C.December.()3.Whos ill in hospital?A.Kate.B.Mr Wu.C.Linda.()4.How long has the man been here?A.One year.B.half a year.C.Three months.()5.What is the teacher doing?A.Talking to a parent.B.giving a maths lesson.C.Playing basketball.CBCBA练习1.-I have seen the film

9、Titanic already.-When _ you _ it?A.have,seen B.will see C.did,see D.did,seen2.Mr.Black _ in China since five years ago.A.lived B.has lived C.lives D.is going to live3.-_ Uncle Wang _(mend)the TV yet?-Yes,he_.-When _ he _ it?-Yesterday.4.-I _(see)the film Chicken Run.-Where and when _ you _(see)it?-L

10、ast week.5.-_ you _(see)the film last night?-No,I _(see)it for several times.6.-_ you _(return)the book to the library?-Not yet.But I _(return)it this afternoon.7.Is Tom doing his homework?No,he _his homework already.(finish)8.Do you know Miss King?No,but I _ her before.(hear of)9.What about the fil

11、m?Sorry,I dont know.I _ it yet.(see)10._ you ever _ to the Great Wall?No,never.(go)11.How does he get on with his classmate?Oh,he _ a lot these days.(change)12.Help yourself,please.No,thanks.Im full.I _ just _ three eggs.(eat)练习Further exercises:1.I am busy these day.I _(not go)to the cinema for wee

12、ks.2.The boy is happy because he _(sell)out all the newspapers.3.They _(live)in Shanghai since 1991.4.Great changes _(take place)in our country since 1949.5.Miss Jane _(teach)us last year.She _(teach)in our school for 4 years.6.She _ already _(do)her homework.She _(do)it yesterday evening.7.-_ you e

13、ver _ to London?-Yes,I have.-When _ you _(go)there?-Last year.8.Who _(take)my dictionary away?I cant find it everywhere.9.It _ ten years since I _(leave)china.10.A lot of trees _(cut)down in the last 300 hundred years.Use the given words to make a dialogue,please!Shanghai,once,last yearan old man,help,yesterday,many timesJoin the League,last month,for a monthThank you!