1、初中英现在完成时讲解与练习现在完成时【现在完成时】 A. 表示过去发生或已经完成的动作对现在造成的影响或结果，或从过去已经开始，持续到现在的动作或状态。【常用时间状语】recently, lately, since+时间点, for+数字+时间名词, in the past few months/years等【构成】 肯定形式：have/has + done 否定形式：have/has + not +done 一般疑问句：have或has放于句首 B.现在完成时的用法1）现在完成时所表示的动作在说话之前已完成，而对现在有影响。 eg. The car has arrived.车子来了。（结果：
2、车子已在门口） Someone has broken the window.有人把窗户打破了。（结果：窗户仍破着）区别：have been to, have gone to, have been inhave been to,表示去过某个地方，不过现在已经回来了have gone to表示去了，但还没有回来，也许是在去的途中have been in指的是在某个地方，从过去一直延续到现在Where has he been? 他刚才到哪里去了？（已经回来了）Where has he gone? 他上哪儿去了？（人不在）They have been to Canada. 他们到过加拿大。（现在已经不
3、在加拿大）They have gone to Canada. 他们到加拿大去了。（可能在路上和已经到加拿大） Jill has been in Ireland for three days.2）现在完成时所表示的动作开始于过去，持续到现在，也许还会持续下去。常用for和since表示一段时间的状语eg. He has studied English for 5 years. He has studied English since 2001. Now I have finished the work.I have lived here for more than thirty years.我已
4、在此住了30多年。since和for的区别since后接时间点，如1993，last term, yesterday, the time I got therefor后接一段时间，表示“长达多久”，如ten years, a while, two days等。Exercise: 用since和for填空1. Jim has been in Ireland _ Monday.2. Jill has been in Ireland _ three days.3. His aunt has lived in Australia _15 days.4. Mary is in her office. S
5、he has been there _ 7 oclock.5. India has been an independent country _1974.6. The bus is late. Theyve been waiting _ 20 minutes.7. Nobody lives in those houses. They have been empty _ many years.8. Mike has been ill _a long time. He has been in hospital _ October.2）表示短暂意义的动词如arrive, leave, borrow,
6、buy, begin, start, die等，在完成时当中不能和表示一段时间的状语连用，因为它们表示的动作不可能持续。因此，不能说： He has come here for 2 weeks. The old man has died for 4 months. They have left only for 5 minutes. 以上三句话可以改为：He has been here for 2 weeks.The old man has _ _ for 4 months.They have _ _ only for 5 minutes由非延续性动词到延续性动词的转换：arrive be h
7、ere begin(start)be ondie be dead come back be backleave be awayfall ill(sick, asleep) be ill(sick, asleep)get up be upgo out be outfinish be overput on wear 或be onopen be openjoin be in或be a member ofclose be closedgo to school be a student borrow keepbuy have catch(a cold) have(a cold)get to know k
8、nowbegin to study studycome to work work3）现在完成时不能和表示过去的时间状语连用，如yesterday, last year, in 1976, two days ago, just now, when I came in，但可以和already, yet, sometimes, always, often, before, lately, recently, once, twice, ever, never等连用。例如：She has already come. 她已经来了。I havent read it yet. 我还没读过这个。I have m
9、et him before. 我从前曾见过他。Ma Hong has always been a good student. 马红一直是个好学生。I have often seen him in the street. 我经常在街上看见他。They have never been to Yanan. 他们从未去过延安。I havent seen him lately. 我近来没看到他。英语动词变过去式、过去分词不规则变化大全不规则动词过去式【AAA型】： Cost cost costcut cut cut put put put read read read hit hit hit hurt
10、hurt hurt let let let【ABB型】：(原形aught/oughtaught/ought)catch caught caughtteach taught taughtbring brought broughtbuy bought boughtthink thought thought(原形元音变化元音变化)sit sat satmeet met metfind found foundget got gotstand stood stoodunderstand understood understoodwin won won(原形 “t” “t”)lose lost lostb
11、uild built builtsend sent sentspend spent spentsmell smelt smeltfeel felt feltlearn learnt/learned learnt/learnedlend lent lent(原形 “d” “d”)Hear heard heardMake made madehave(has) had hadpay paid paidsay said saidtell told told(“ee/ea” “e.t” “e.t”)sleep slept sleptsweep swept sweptkeep kept keptleave
12、 left left【ABC型】：(原形变形原形+en/ne)be(am,is) was beenbe(are) were beensee saw seendo did donego went goneeat ate eatengive gave givenmistake mistook mistakentake took takendrive drove drivenwrite wrote written(原形 “-o-” “过去式-n”)break broke brokenspeak spoke spokenforget forgot forgotten(原形 “ew” “原形-n”)sh
13、ow showed shownfly flew flowngrow grew grownthrow threw thrownknow knew known(原形 “-a-” “-u-”)Begin began begunring rang rungdrink drank drunksing sang sungswim swam swum【ABA型】become became becomecome came comerun ran run一、 典型例题 （ ）1.When he arrived at the bus stop, the bus _ for 20 minutes.A. has le
14、ft B. had left C. has been away D. had been away（ ）2. I _ the League for 5 years so far. A. joined B. have joined C. have been in（ ）3.The factory _ since the February of 1988. A . has been open B. has opened C. was open D. opened（ ）4.Mary and Rose _friends since they met in 2000. A. have made B. hav
15、e been C. made D. have become（ ）5.You mustnt_ until he comes back. A. be away B. leave C. be left（ ）6.The meeting _ for a week now. A. has finished B. has ended C. has been over（ ）7.Miss Gao _ this school for nearly 5 years. A. has been in B. has come to C. has taught（ ）8.Ben _ a teacher for 4 years
16、. A. has been B. has become C. was D. became（ ）9. I _ home for a week. A. have returned B. have been back C. returned（ ）10. How long _ he _ ? A. died B. has, died C. has, been dead（ ）11. He _ at eight yesterday afternoon. A. slept B. was sleeping C. has sleep D. had slept（ ）12.He _ the car for a wee
17、k. A. bought B. has bought C. has had （ ）13.-How long _ you _ ill ? -Two weeks. A. did fall B. have, fell C. have, been（ ）14.Since 2000, he _ his hometown. A. has left B. has moved away C. has been away from（ ）15.Ill lend you the book , but you can only _ it for 2 days. A. borrow B. keep C. take三、课后
18、练习单项选择 （ ）1、Both his parents look sad. Maybe they _whats happened to him. A. knew B. have known C. must know D. will know（ ）2、He has _ been to Shanghai, has he ?A. already B. never C. ever D. still（ ）3、Have you met Mr Li _？ A. just B. ago C. before D. a moment ago（ ）4、The famous writer _ one new boo
19、k in the past two year . A. is writing B. was writing C. wrote D. has written（ ）5、Our country _ a lot so far . Yes. I hope it will be even _. A. has changed; well B. changed; good C. has changed; better D. changed; better（ ）6、Zhao Lan _already _in this school for two years . A. was; studying B. will
20、; study C. has; studied D. are; studying（ ）7、We _ Xiao Li since she was a little girl . A. know B. had known C. have known D. knew（ ）8、Harry Potter is a very nice film. I _ it twice. A. will see B. have seen C. saw D. see（ ）9、These farmers have been to the United States . Really? When _ there? A. wi
21、ll they go B. did they go C. do they go D. have they gone （ ）10、_ you _ your homework yet? Yes. I _ it a moment ago. A.Did; do; finished B.Have; done; finished C.Have; done; have finished D.will; do; finish（ ）11、His father _ the club since 1988. A. joined B. has joined C. was in D. has been in（ ）12、
22、Do you know her well? Sure .We _ friends since ten years ago. A. were B. have been C. have become D. have made（ ）13、How long have you _ here? About seven years. A. been B. gone C. come D. arrived（ ）14、Hurry up! The program _ for five minutes . A. has begun B. had begun C. has been on D. began（ ）15、I
23、t _ ten years since he came Chengdu. A. is B. has C. will D. was（ ）16、Miss Green isnt in the office. She _ to the library. A. has gone B. went C. will go D. has been（ ）17、My parents _ Shandong for ten years . A. have been in B. have been to C. have gone to D. have been（ ）18、He _ for 2 hours. A. got
24、up B. has got up C. has been up（ ）19、Tom is ill in hospital. He _ a cold for several days. A. is B. catches C. has caught D. has had（ ）20、His grandparents _ for more than 9 years.A. has come here B. has started to work C. has lived there D. has left the university汉译英1、 吉姆已做完作业，他现在有空了。2、 他昨天收到一封信。3、
25、我父亲以前到过长城。4、 她还没有看过那部新电影。5、 她去过上海。1、Jim has finished doing his homework already. He is free now.2、He received a letter yesterday.3、My father has been to the Great Wall before.4、She hasnt seen the new film yet.5、She has been to Shanghai. Exercise:I. Fill in the blanks with the proper form.1. I_ alrea
26、dy _ (see) the film. I _ (see) it last week.2. _ he _ (finish) his work today? Not yet.3. My father _ just _ (come) back from work. He is tired now.4. Wheres Li Ming ? He _ (go) to the teachers office.5. I _ (work) here since I _ (move) here in 1999.6. I _(make) quite a few friends here.7. How long
27、_ the Wangs _(stay) here ? For two weeks.8. I _ just _ (finish) my homework. 9. He _ (go) to school on foot every day. 10._ you _ (find) your science book yet? 11. If it _ (be) fine tomorrow, Ill go with you. 12. Look! The monkey _ (climb) the tree. 13. My mother _ (come) to see me next Sunday. 14.
28、Ive lost my pen. _ you _ (see) it anywhere? II. Choose the best answer. 1. How long have you _ here?A. come B. got C. arrived D. been2. My grandpa died _.A. at the age of my 2 B. for 2 years C. when I was 2. D. my age was 6.3. Jane has _ to BeiJing. She will come back tomorrow.A. been B. gone C. wen
29、t D. never been4. It is ten years _ I last saw her.A. after B. since C. for D. that5.-Who will go to the station to meet Lorry? -I will. I _ her several times.A. met B. have met C. had met D. will meet6. -What a nice dress! How long _ you _ it? -Just 2 weeks.A. will, buy B. did, buy C. are, having D. have, had7.-Do you know Lydia very well? -Yes, She and I _ friends since we were very young. A. have made
