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1、1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：车子已在门口）S
2、omeone 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例如：你以前去过北京么？例如：A: Is Mr.Wang at home?B: No,he is not in,（他去香港了）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
3、示一段时间的状语或 so far， now，today，this week (month，year)等表示包括现在时间在内的状语。eg. He has studied English for 5 years.He has studied English since 2001.Now I have finished the work.注意：表示短暂时间动作的词，如:come，go，die，marry ，buy 等的完成时不能与 for，since 等表示一段时间的词连用。用来持续的动作或状态或表过去重复的动作，如 live，study，be，wait 等，常和 since（自从）或 for（经历
4、）引导的词语连用。如：I have lived here for more than thirty years.我已在此住了 30 多年。由非延续性动词到延续性动词的转换：arrive be here 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 ofc
5、lose be closedgo to school be a studentborrow keepbuy have catch(a cold) have(a cold)get to know knowbegin to study studycome to work work2例题 （ ）1.When he arrived at the bus stop, the bus _ for 20 minutes.A. has left B. had left C. has been away D. had been away（ ）2. I _ the League for 5 years so fa
6、r. 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. have been C. made D. have become（ ）5.You mustnt_ until he comes back. A. be away B. leave
7、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. A. has been B. has become C. was D. became（ ）9. I _ home for a week. A. have returned
8、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 week. A. bought B. has bought C. has had （ ）13.-How long _ you _ ill ? -Two weeks. A. did f
9、all 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练习单项选择（ ）1、Both his parents look sad. Maybe they _whats happened to him.A. knew B. have know
10、n 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 book in the past two year .3A. is writing B. was writing C. wrote D. has written（ ）5、Our country
11、_ 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; study C. has; studied D. are; studying（ ）7、We _ Xiao Li since she was a little girl .A. know B.
12、 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. will they go B. did they go C. do they go D. have they gone （ ）10、_ you _ your homework yet?Yes. I _ i
13、t a moment ago.A.Did; do; finished B.Have; done; finishedC.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、Do you know her well? Sure .We _ friends since ten years ago.A. were B. have been C. have become D. have
14、 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、It _ ten years since he came Chengdu.A. is B. has C. will D. was（ ）16、Miss Green isnt in the office. She _ to the l
