现在完成时.doc

现在完成时构成：have/has +动词的过去分词肯定句：主语+have/has +动词的过去分词+其它否定句：主语+havent/hasnt+Ved+其它一般疑问句:Have/has +主语+Ved+其它? Yes,主语+have/has.( No,主语+ havent/hasnt)用法一:表示过去发生或已经完成的动作,对现在造成的影响和结果。 1.我吃早饭了。 I have eaten/had breakfast.2.我丢了我的钥匙。 I have lost my keys.3.李明倒垃圾了。 Li Ming has taken out the rubbish.4.他还没有完成作业。 He hasnt finished his homework?5. 我没有看过这部电影。 I havent seen the movie. 6. 他没有离开过文登。 He hasnt left Wendeng.7.你喂狗了吗？喂了。 Have you fed the dog? Yes, I have. 8.你朋友给你写信了吗？没有。 Has your friend written to you? No, she hasnt. 9.你爷爷浇花了吗？浇过水了。 Has your grandpa watered the flowers? Yes, he has. 10.你妈妈刷碗了吗？还没有。 Have your mother washed/done the dishes? No, she hasnt. 11.Jack找到他的自行车了吗？找到了。 Have Jack found his bike? Yes, he has. 12. 谁打扫的教室？李明。 Who has cleaned the classroom? Li Ming has. 昨天谁打扫的教室？王鹏。 Who cleaned the classroom yesterday?Wang Peng did. 关键词： 1.already (be/助动词后面，实意动词前面，也可放句末） 2.yet（否定句、疑问句一般放句末） 3. just (be/助动词后面，实意动词前面） 4.before（句末） 5.ever (be/助动词后面，实意动词前面） 6.never (be/助动词后面，实意动词前面） 7.once, twice, a few times.(次数放句末）1.我已经完成了我的作业。 I have already finished my homework.2.我还没完成作业。 I havent finished homework yet.3.你已经完成作业了吗？ Have you finished homework yet?4.我刚刚回来了。 I have just come back. 5.我叔叔刚刚离开了。 My uncle has just left.6.我以前看过这本书。 I have read the book before.7.我表妹以前看过这部电影。 My cousin has seen the movie before.8.你曾经听过这个故事吗？ Have you ever heard of the story?9.他们从未离开过他们的村庄。 They have never left their village.10.这部电影我看过两次。 I have seen the movie twice.1 我不能打开门，我丢了我的钥匙。 I cant open the door, I have lost my keys. 2 教室多么干净呀！谁打扫的呀？ How clean the classroom is! Who has cleaned it? 3 别把这本书还给图书馆，我还没读完。 Dont return the book to the library. I havent finished reading it . 4 这本书很有趣，我读过两遍了。 The book is very interesting. I have read it twice. 5 他还没有完成作业。 He hasnt finished his homework yet. 6 他们从来没有离开过他们的村庄。 They have never left their village. 8 Tom 刚刚离开办公室。 Tom has just left his office. 9 你以前看过这部电影吗？是。/不是。 Have you seen the movie before? Yes, I have./No, I havent.10 他曾经听过这个故事吗？ 听过。/没有。 Has he ever heard of the story ? Yes, he has./No, he hasnt. 11 你以前吃过这种食物吗？ 从来没有。 Have you eaten this kind of food before? No, never. 12 你父亲吃过早饭吗?还没有。 Has your father had breakfast? No, not yet. 1. I _(fly) to Canada before. My mother _(fly) to Canada two days ago.2. How long _ she_(know) the man?3. I _ never _ (eat) oranges.4. _ she _ (dig) a hole yet?5. So far, I _(choose) many good picture.4. Jack _ever _(be) to the park with his friend.5. _ he _ (read) the interesting book? - Not yet.6. _ you _ (visit) the Great Wall? Yes, I have. I _ (visit) it with my parents last year. 7. _your brother _(play) the violin this morning?8. -_ you _ (finish) your homework yet? -Yes, I have. -When _ you _ (finish) it? -Half an hour ago.9. I _ (lose) my keys. What should you do?10. Who _ (clean) the classroom? Its very clean.11. We _ already _ (hear) of the story.12. When I _(walk) down the street, I _(meet) an old friend of mine. 13. Mary _ her pen. _ you _ it here and there?14. _ you _ (find) your watch yet?15. -Are you thirsty?-No, I _ just _ (have) some orange用法二： 表示去过某地： have/has + been （表示去了又回来了）表示到某地去了： have/has + gone （表示去某地了，还没有回来）1 我去过北京两次。 I have been to Beijing twice. 2 我父亲不在家，他去北京了。 My father isnt at home, he has gone to Beijing. 3 你以前去过澳大利亚吗？从来没有。 Have you been to Australia before? No, I have never been there before. 4 Kate 在哪？她去澳大利亚了。 Where is Kate? She has gone to Australia. 5 我以前从来没有去过海南岛。 I have never been to Hainan Island before. 6 你曾经去过科学博物馆吗？是的，我去 年去那了。 Have you ever been to the Science Museum? Yes, I went there last year. 用法三： 表示过去某一时间开始并一直持续到现在的动作或状态，常与表示延续的时间状语连用。 常见时间状语： how long, for+一段时间，since+过去时间短语/过去时态的句子，since then, so far, in the last/past few years, these years/days 用since和for填空1. _ two years 2._ two years ago 3. _ 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 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. 12. He has lived in Nanjing _ the year before last. 13. Ive known 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. 1 我父亲教英语20年了。 My father has taught English for twenty years. 2 我父亲自从20年前就教英语。 My father has taught English since 20 years ago. 3 我父亲自从大学毕业就一直教英语。 My father has taught English since he finished the university.4 到目前为止，我们已经学了2000个英语单词。 So far, we have already learned 2000 English words.5 在过去的三年里，我们的学校变化很大。 Our school has changed a lot in the last three years. 6 这些年他们一直住在农村。 They have lived in the country these years. 7 Mike 离开他的家乡三年了。 Mike has been away from his hometown for three years. 8 电影已经开演十分钟了。 The film has been on for ten minutes. 9 我买这辆轿车三年了。 I have had the car for three years. 10 这本书你借了多长时间？ How long have you kept the book? 11 我父母去北京一个周了。 My parents have been in Beijing for a week12 我父母结婚十五年了。 My parents have been married for fifteen years. 13 她的狗死了两天。 Her dog has been dead for two days. 14 他们来中国多年了。 They have been in China for many years. 15 他参加学校篮球队半年了。 He has been in the school basketball team for half a year. 16 他成为音乐家两年了。 He has been a musician for two years.17.我叔叔已经搬到上海两年了。 My unc