一般过去时、现在完成时、过去完成时复习一．比较过去时与现在完成时1）过去时表示过去某时发生的动作或单纯叙述过去的事情，强调动作；现在完成时为过去发生的，强调过去的事情对现在的影响，强调的是影响。
2）过去时常与具体的时间状语连用，而现在完成时通常与模糊的时间状语连用，或无时间状语。
一般过去时的时间状语:yesterday, last week，…ago, in1980, in October, just now, 具体的时间状语共同的时间状语:this morning, tonight,this April, now, once，before, already, recently，lately现在完成时的时间状语for, since, so far, ever, never, just, yet, till / until, up to now, in past years, always, 不确定的时间状语3）现在完成时可表示持续到现在的动作或状态，动词一般是延续性的，如live, teach, learn, work, study, know.过去时常用的非持续性动词有come, go, leave, start, die, finish, become, get married 等。
举例：I saw this film yesterday.（强调看的动作发生过了。
）I have seen this film.（强调对现在的影响，电影的内容已经知道了。
）Why did you get up so early?（强调起床的动作已发生过了。
）Who hasn't handed in his paper?（强调有卷子，可能为不公平竞争。
）She has returned from Paris.她已从巴黎回来了。
She returned yesterday.她是昨天回来了。
He has been in the League for three years.(在团内的状态可延续)He has been a League member for three years.(是团员的状态可持续)He joined the League three years ago.( 三年前入团，joined为短暂行为。
)I have finished my homework now.一般过去时和现在完成时练习题1. A. 用already或yet1) Have they taken down the old pictures ___ ___? No, they haven’t____ ___.2) Most of us have finished our compositions _____ .3) He said he hadn’t visited the exhibition _____ ___.B.用since或for1) We have learned five lessons __ __ _ the beginning of this term.2) Mrs Liao has been in hospital __ _ ___last week.3) I have stayed at my aunt’s ___ __two weeks.C. 用have gone或have been1) Where are the boy students? They _____ to the school factory.2) Is your father in? No, he ___ _ to Shenzhen. _______he ever ______ there before ?Yes, he ___ there several times3) He asked me if I___ __ to Hangzhou before.I told him that I wanted to go there for a visit as I __ __ never _ ___ to that city before.2. 选择填空1.Mother __ __me a new coat yesterday. I _______ it on. It fits me well.A. had made…have triedB. made…have triedC. has made…tr iedD. made…tried2 “He ____to draw horses already”. “When ______ he ?” “ Last year “A. learned...has B. learned (i)C. has learned...has D. has learned (i)3.Tom _____up into the tree. Look, he ____ high up there !A. has got…isB. has clim bed…wasC. got …wasD. climbed…is4.____ you _____ the text yet ? Yes, we ____ it two hours ago.A. Did…copy…didB. Have…copied…haveC. Have…copied…didD. Did …copy…had5. “Why ______ she _______ angry ?” “Because he _____ at her just now .”A. did…get…shoutedB. has…got…shoutedC. did…get…has shoutedD. has…got…has shouted6. ______you __________ the film before ? Where _____ you ____ it ?A. Have …seen…did…seeB. Did …see…did…watchC. Have…seen…have…seenD. Did …see…have…s een7.You ____ me waiting for two hours. I ____ for you since five.A. kept…waitedB. have kept…waitedC. kept…have waitedD. have kept…have waited8.Where ______ John _______ ? To the library. He _________ there for an hour.A.has…been…has goneB. has…gone…has beenC. did…go…wentD. did…be…went9.______ the baby still _____ ? No, it _______ crying.A. Has…cried…has stoppedB. Is…crying…stoppedC. Did …cry…stoppedD. Is…crying…has stopped10. I _______ the way. I ________ here for quite many years.A. knew...have lived B. knew (iv)C. know...have lived D. know (iv)11. _____ you ever _____ America ? Yes, I have.A. Have…gone toB. Have…gone inC. Have…been toD. Have …been in12. My brother ____college for over three years.A. has gone toB. has been toC. has been inD. has been at13.He ________ the Army by the end of 1989. He ______ in the army since then.A. joined…isB. has joined…has beenC. had joined…isD. h ad joined …has been14. By the time I _____ back they ____ up ten satellites.A. came…have sentB. came…had sentC. come…have sentD. had come…sent15. Jack ____ over five lessons by seven o’clock. Then he ____ a rest.A. went…tookB. went…had takenC. had gone…tookD. had gone…had taken16. We ____ out by that time that he ____ a spy for a long time.A. had found…had beenB. had found…wasC. found…had beenD. found…was17. Before the news ____ him, he ____ to know about it.A. reaches…has gotB. reached…had gotC. reached…gotD. had reached…got18. I _____ him a second letter before I ____ from him.A. wrote…heardB. wrote…had heardC. had written…heardD. have written…hear19. People ____ that the soldiers _____ fighting.A. say…had sto ppedB. said…has stoppedC. say…stoppedD. said…had stopped20. We ____ in a good harvest because we ____ enough rain.A. didn’t get…had hadB. got…had hadC. had got…had hadD. got…hadn’t had21. They _______ for five hours when they ______ in New York.A. flew…arrivedB. had flown…had arrivedC. flew…had arrivedD. had flown…arrived22. She ____ that it _____ for two days by that day.A. says…has rainedB. says…had rainedC. said…had rainedD. said…rained23. John _____ there since the year before, so he _____ them.A. had worked…knewB. had worked…had knownC. worked…knewD. worked…had known24. He _____ angry because he ____ for a long time.A. had got…had waitedB. got…waitedC. had got…waitedD. got…had waited25. -I have seen the film “Titanic” already.-When __________ you __________ it？-The day before yesterday.A. have；seenB. will；seeC. did；seeD. did；seen26. Mr Black __________ in China since five years ago.A. livedB. has livedC. livesD. is going to live27. We ____________ trees last Sunday. So far we __________ over 3，000 trees there.A. planted；plantedB. planted；have plantedC. have planted；plantedD. have planted；have planted二过去完成时1）概念：表示过去的过去----|-------|-----|---->其构成是had +过去分词构成。