初中时态讲解:现在完成时.doc
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1、Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-date初中时态讲解:现在完成时、时态讲解:现在完成时 初中时态讲解:现在完成时1)构成:现在完成时由助动词have+ 过去分词构成,助动词have 有人称和数的变化。第三人称单数用has,其余用have. 现在完成时的否定式直接在助动词后面加上not、疑问式是把助动词提到主语之前。以study为例,其否定式、疑问式和简单回答形式如下:(2)用法:1)现在完成时通常表示在说话
2、之前已经完成的动作或存在的状态。说话人强调的是该动作或状态对现在的结果或影响。My daughter has just gone out. 我女儿刚出去。Im sure weve met before. 我肯定我们以前见过面。She has arrived. 她到了。2)表示持续到现在的动作或状态,往往和包括现在在内的表示一段时间的状语连用,如recently, already, just, lately, for, since,yet 等。如:I havent heard from her these days. 这些日子我没有收到她的信。We havent seen you recentl
3、y. 最近我们没有见到你。They have been away for two years. 他们离开已经两年了。She has been with us since Monday. 注意:a)since和for的区别since后接时间点,如1993,last term, yesterday, the time I got there for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 Ir
4、eland _ three days. 3. His aunt has lived in Australia _15 days. 4. Mary is in her office. She 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
5、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, 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 wee
6、ks. The old man has _ _ for 4 months. They have _ _ only for 5 minutes 2)have (has) been 和have (has) gone的区别:表示“曾到过某地”要用“have (has) been”; 表示 “已经去某地”要用“have (has) gone”。试比较: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。(现在已经不在加拿大)They have gone t
7、o Canada. 他们到加拿大去了。(可能在路上和已经到加拿大)3)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,但是可以和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 met him
8、 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。Irregular Verbs ()见附件)Exercise: I. Fill in the blanks with the proper form. 1. I_ already _ (see) the film. I _
9、(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. So far I _(make) quite a few friends here. 7. How long _ the Wangs _
10、(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. The students _ (read) English when the teacher came in. 13. Look! The monkey _ (climb) the tree. 14
11、. My mother _ (come) to see me next Sunday. 15. 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. been 2. 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
12、. She will come back tomorrow. A. been B. gone C. went D. never been 4. It is ten years _ I last saw her. A. after B. since C. for D. that 5.-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 meet 6. -What a nice dress! How long _ you _ i
13、t? -Just 2 weeks. A. will, buy B. did, buy C. are, having D. have, had 7.-Do you know Lydia very well? -Yes, She and I _ friends since we were very young. A. have made B. have become C. have been D. have turned 8. The Smiths _ in China for 8 years. A. has lived B. lived C. have been D. live 9. -Hell
14、o, this is Mr. Green speaking. Can I speak to Mr. Black? - Sorry. He _ the Bainiao Park. A. has been to B. has gone to C. went to D. will go to 10. -_ you ever _ to the US? - Yes, twice. A. Have, gone B. Have, been C, Do, go D. were, going III. Rewrite the sentences. 1. I have been to Macau before.
15、(改为否定句) I _ _ been to Macau before. 2. He hasnt come to school because he was ill. (就划线部分提问) _ _ he come to school? 3. I bough a new bike just now. (用just改写) I _ just _ a new bike. 4. We began to learn English three years ago.(改为同义句) We _ _English _three years 5. He has never surfed, _ _? (改成反意疑问句)6
16、. They have been here since 2000. (对划线部分提问) _ _have they been here? 7. The old man _ last year. He has _ _for a year. (die) (动词填空)8. Miss Gao left an hour ago. (同义句转换) Miss Gao has _ _ _ an hour ago. Ask the questions 1) I have been there for two days. _ _ _ you _ _? 2) My father has lived here sinc
17、e 2000. _ _ _ your father _ _? 3) He left here yesterday. _ _ he _ _? 4) They bought a book two hours ago. _ _ they _ a book? Use never, ever, already, just, yet, for, sinceto fill in the blanks. 1. I have _ seen him before, so I have no idea about him. 2. Jack has _ finished his homework. 3. Mr. Wa
18、ng has taught in this school _ ten years. 4. “Have you _ seen the film?” “No, I have _ seen it.”5. “Has the bus left _?” “Yes, it has _ left.”现在完成时练习题及答案一、翻译下列句子:1.你曾经吃过鱼和薯条吗?2. 我刚刚丢了我的化学书。3. 我以前从来没去过那个农场。4. 他已经吃过午饭5. 你已经看过这部电影了吗?6. 我哥哥还没回来。7.这本字典我已买了三年了。8.他离开中国三年了。9.我认识他们五年了。10.他们已去了美国五年了。11.自从他搬到济
19、宁,他就住这儿了。12.我妹妹成为一个大学生已经三年。13.自从1999年以来他们就认识。14.我来到这个学校已3年多了。二、用since和for填空1._two years 2._two years ago3._last month 4._ 1999 5._yesterday 6._ 4 oclock 7 _4 hours 8._an hour ago 9. _we were children 10._ lunch time 11._ she left here 12. He has lived in Nanjing _ the year before last. 13. Ive known
20、 him _ we were children.14. Our teacher has studied Japanese _ three years. 15. She has been away from the city _ about ten years. 16. Its about ten years _ she left the city.三、结束性动词转换为以下延续性动词或者表示可以延续的状态的短语。arrive at / in sp / get to / reach sp / come / go / move to sp be in sp / at school / at home
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