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1、一、现在完成时一、现在完成时1.现在完成时的结构：have (has) +过去分词 2.现在完成时常用搭配词和短语：for, since, already, yet , just, never, before, latelyrecently, up to now, by now, so far, in recent years, duringinover the past(last)few years(months) 3.想一想，在现在完成时态的句子中, already 和 yet 的用法区别：since 和 for 的用法区别:Note：for+一段时间，不一定都用现在完成时。如果说的是过去
2、的一件事情，则用一般过一段时间，不一定都用现在完成时。如果说的是过去的一件事情，则用一般过 去时。去时。 My father_a worker for 10 years. He _ once in the army for 3 years. ( be) 父亲做工人 10 年了，他曾经在部队里呆过 3 年。 结论结论 : 1. 现在完成时强调过去的动作对现在造成的影响。现在完成时强调过去的动作对现在造成的影响。 2. 过去的一件事情持续多长时间或发生多少次，用一般过去时。过去的一件事情持续多长时间或发生多少次，用一般过去时。 练习：1） _ you _ my pen? Yes, I_ it on
3、 your desk just now. (see) 2） _ you _ dinner? Yes, I _ it with Mary. (have) 3）_the postman_ yet this morning? _ the postman_ this morning? (come) 4. 常用现在完成时态的几种句型常用现在完成时态的几种句型: a.ThisThat It is the first secondlast.time (that)sb. havehas done sth. b.ThisThat It is the best worst most interesting +n.
4、 (that) sb. havehas done sth. c.ThisThat It is the only . (that)sb. havehas done sth. d.It is( has been) + 一段时间一段时间+ since+一般过去时一般过去时 This is the first time that I _here. ( come) It is the best book I _. (read) 5. 在条件、时间、让步状语从句中，表示将来某时间以前已经完成的动作，用现在完成时。I will not believe you unless I _it with my own
5、 eyes.( see) 除非我亲眼看到，否则我不会相信你的。(强调“看完”) I will go with you as soon as I _my work. ( finish) 我做完了工作就和你一起去。 （ 强调“做完” ） NOTE: 在状语从句中，用一般现在时表将来；用现在完成时表将来完成时。在状语从句中，用一般现在时表将来；用现在完成时表将来完成时。 如：If it rains tomorrow, I will stay at home.( 状语从句中，用一般现在时表将来)二、现在完成进行时二、现在完成进行时1. 现在完成进行时的结构：have (has) been doing
6、2.与现在完成进行时常用搭配：all the time, all the morning daymonth, the whole dayweek 3. 现在完成进行时的用法：现在完成进行时表示一个动作开始于过去，持续到现在，并强 调现在还在进行。完成进行时是完成时和进行时的组合，因此，它具备完成时和进行时的 一些因素，如：它具备进行时的“未完成、暂时性、感情色彩未完成、暂时性、感情色彩” 。 He has been learning English for 6 years.(从过去某一时间开始学英语，强调现在还在学) It has been raining for 3 days.( 强调说话者
7、“抱怨”的感情色彩)Practice:1. Im sorry, but I dont quite follow you. Did you say you want to return on September20? Sorry, I _ myself clear. We want to return on October 20. A. hadnt made B. wouldnt make C. dont make D. havent made 2. Every year a flood of farmers arrive in Shenzhen for the money-making job
8、s they _ before leaving their hometowns.A. promised B. were promised C. have promised D. have been promised 3. Mother wanted to be a good provider, a role she _ since her marriage to Father.A. shoulders B. shouldered C. is shouldering D. has been shouldering 4. The book has been translated into thir
9、ty language since it _ on the market in 1973.A. had come B. has come C. came D. comes 5. Im tired out. I _ all the afternoon and I dont seem to have finished anything.A. shopped B. have shopped C. had shopped D. have been shopping 6. I have got a headache. No wonder. You _ in front of that computer
10、too long. A. work B. are working C. have been working D. worked 7. -_ you _ him around the museum yet?-Yes. We _a great time there.A. Have；shown；had B. Do；show；hadC. Have；shown；have had D. Did；show；have had 8. Is this the first time that you _here?A. visit B. are visiting C. had visited D. have visi
11、ted 9. Dont get off the bus until it _.A. is stopping B. has stopped C. will stop D. has been stopping10. -Im sure Tom will win the first prize in the final.-I cant agree more. He _for it for months. A. is preparing B. was preparing C. had been preparing D. has been preparing 11.-Look! Someone_ the
12、sofa.-Well, it wasnt me. I didnt do it.A. is cleaning B. was cleaning C. has cleaned D. had cleaned 12. a. He _football regularly for many years when he was young.b. He _football regularly for many years since he was young.A. was playing B. played C. has played D. had played 13. .-Have you been to t
13、he USA?- Yes, only once. I _ there only for 7 days.A. have stayed B. was staying C. stayed D. had stayed 14.-Have you visited the Great Wall?- Yes, when I was in Beijing I _it twice.A. have visited B. was visiting C. visited D. had visited 15. Until we have discussed all the details, no decision_ about any new operations.A. will be made B. is made C. is being made D. has been made
