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1、现在完成时态Present perfect tense一. 复习学习过的时态判断下列各句的时态。1. She works in a factory.2. I was doing my homework at this time yesterday.3. We are going to have a picnic this Sunday.4. They held a sports meeting last week.5. Are you helping your mother?二、现在完成时态（一）、概念： 1. 表示过去或已经完成的某一动作对现在 成的影响或结果。常与下列状语连用：alread
2、y, just, yet, ever, never, before I have just had my breakfast.(现在我不饿) 2. 表示过去已经发生，持续到现在的动作或状态，可以和表示从过去某一时刻延续到现在（包括“现在”在内）的 一段时间的状语连用。I have lived here since three years ago. a. for和表示一段时间的词组连用。 如：I have lived here for three years. b. since和表示过去某一时刻的词或词组连用。如：since 1997, since two years ago, since la
3、st week I have lived here since three years ago.（二）、构成: have / has + v 过去分词肯定句：I have finished my homework.否定句：I havent finished my homework.一般疑问句：Have you finished your homework? Yes, I have. / No, I havent.（三）相关知识1、already“已经”通常用于肯定句中。 I have already posted the letter.有时，也用在疑问句中表示惊讶。 Have you eate
4、n up all the food already?2、yet“仍然，还 ” 用在疑问句和否定句中。I havent read this book yet . Have you had breakfast yet ?3、ever“曾经”通常用于疑问句和肯定句中。 I have ever seen this film. Have you ever been to the USA ?4、never“从来不” 用在否定句中。Is he famous? I have never heard of him.5、just“刚刚 ”用在陈述句中。 I have just bought a novel.6、b
5、efore“以前”用在完成时中，放在句尾。have never read this kind of books before.7、动词的过去分词a.规则动词finish-finished-finished live-lived-lived carry-carried-carried stopstopped-stoppedb.不规则动词gowentgone see-sawseen forgetforgot-forgotten8. since 和for_three hours _three oclock _two days_yesterday afternoon _I came here _las
6、t Sunday_a week _a long time _1997_two weeks _three years ago _ last month9. 比较现在完成时和过去时的区别：*现在完成时所表示的是过去发生的动作对现在造成的影响或结果。*一般过去时表示的是过去发生的事实。现在完成时不能和确定的过去时间状语连用，如：yesterday, last year, in 1976，two days ago, just now但可以和一些不确定的时间状语连用，也可和包括现在在内的时间状语连用，如：already, yet, before, lately, recently, once, twic
7、e, ever, never1) She has already come.2) I havent read it yet.*gocomeleavedie等词语表示的动作是一时的，不能延续，不能与for、since等表示一段时间的词连用，如不能说：He has gone for two months. (F)但可以说：He has been away for 2months.10. 翻译下列句子。她成为一名护士已经三年了。 我五年前就认识李雷了。那些相片我已经寄给他了。（post）我来到这个学校后，他就一直教我。我刚丢了我的历史书。 (四) homework：现在完成时态专项练习题 I.用所给
8、动词的适当形式填空1. I_ already _ (see) the film. I _ (see) it last week.2. _ he _(finish) his work ? Not yet .3. _ you _(be) to Hong Kong ? Yes, I _ _ (be) there twice .4. He _ just _ (finish) his homework.5. _ the young woman ever _(travel) to England?6. _ each of you _(read) “Gone with the wind” yet?7. Ha
9、ve you _(get) any new CDs?8. My family have never _ (be) to Sanya.9. They _ ever _ (eat) fish and chips.10. I _ just _ (lose) my science book.11. Has Tom _ (finish) his work?12. I have already _ (read) this book.13. She hasnt _(return) her book yet.14. _ you ever _(eat ) chocolate sundaes ? No, neve
10、r.15. My father _ just _ (come) back from work. He is tired now.16. Wheres Li Ming ? He _ _ (go) to the teachers office.17. Shanghai _ (be) a small town hundreds of years ago. It _ _ (become) a large city since then.18. I _ _ (work) here since I _ (move) here in 1999.19. So far I _ _(make) quite a f
11、ew friends here.20. How long _ the Whites _(stay) here ? For two weeks.21. I _ just _ (finish) my homework. 22. He _ (go) to school on foot every day. 23. _ you _ (find) your science book yet? 24. The students _ (read) English when the teacher came in. 25. Look! The monkey _ (climb) the tree. 26. My
12、 mother _ _ (come) to see me next Sunday. 27. How many sheep _ you _ (get)? Only one. 28. Ive lost my pen. _ you _ (see) it anywhere? II.句型转换(每空一词)。1.I have been to Macau before.(改为否定句) I _ _ been to Macau before.2.He hasnt come to school because hes ill (就划线部分提问) _ _ he come to school?3.He has lear
13、ned English for 5 years.(就划线部分提问) _ _ _ _ learned English ?4.I bough a new bike just now.(用just改写) I _ just _a new bike.5.We began to learn English three years ago.(改为同义句) We _ _English _three yearsIII. 用for 或since填空。1. Jill has been in Ireland Monday.2. Jill has been in Ireland three days.3. My aun
14、t has lived in Australia 15 days.4. Margaret is in her office. She has been there 7 oclock.5. India has been an independent country 1974.6. The bus is late. Weve 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.
英语人教版八年级下册现在完成时态 Present perfect tense
