1、Unit 1GrammarPast and presentyetrecentlypastadv. 還，仍adv. 近來，最近adj. 過去的Words reviewTo learn to use the present perfect tenseTo learn to form the past participles of regular verbsTo learn to form the past participles of irregular verbsObjectivesPresent Perfect Tense語法講解建議采用歸納法，如盡可能多的呈現(xiàn)一些相關(guān)例句，或可讓學(xué)生從已學(xué)課

2、文中找相應(yīng)例句，引導(dǎo)學(xué)生試著從所觀察到的語言現(xiàn)象中總結(jié)出語言規(guī)則和語法規(guī)律。Look at the following sentences.1. We havent got much tea or coffee, and we havent got any sugar or jam. (新概念1 L79)2. Ive already had my holiday this year. (新概念1 L83)3. Have your mechanics (機(jī)修工) finished yet? (新概念1 L87)4. He has always been a good neighbour. (新概

3、念1 L91) 5. I have just arrived in Scotland and Im staying at a Youth Hostel (青年旅社). (新概念1 L101)6. Have you finished already? (新概念1 L125)7. Eddie, have you seen my food? (P6) Yes, Ive just eaten it. What? Youve eaten my food? Why? 8. Youve changed, Eddie. You used to share food with me! Youve changed

4、 too. You used to be so kind to me. (P6)9. Ive lived here since I was born. (P8)10. Have you ever moved house? (P8)11. , my wife and I moved two blocks away and weve lived in this area since then. (P8)12. Has the town changed a lot over the years? (P8)13. Now, the government has turned part of the t

5、own centre into a new park. (P8)14. However, most of my old friends have moved away. (P9)Guessing Gameto test your sense of observationto test your ability of short-term memory to test your ability to highlight the language pointsGuess1. We _ much tea or coffee, and we _ any sugar or jam. 2. I_ alre

6、ady _ my holiday this year. 3. _ your mechanics _ yet? 4. He _ always _ a good neighbour. 5. I _ just _ in Scotland and Im staying at a Youth Hostel. 6. _ you _ already? Fill in the blanks.havent gothavent gotvehadHavefinishedhasbeenhavearrivedHavefinished7. Eddie, _ you _ my food? Yes, I_ just _ it

7、. What? You_ my food? Why? 8. You_, Eddie. You used to share food with me! You_ too. You used to be so kind to me. 9. I_ here since I was born. 10. _ you ever _ house? haveseenveeatenve eatenve changedve changedve livedHavemoved11. , my wife and I moved two blocks away and we_ in this area since the

8、n. 12. _ the town _ a lot over the years? 13. Now, the government _ part of the town centre into a new park. 14. However, most of my old friends _ away. ve livedHaschangedhas turnedhave moved1. You work in Luoyang, dont you? Yes. I _ in this city for three years. A. work B. worked C. have worked D.

9、will work2. The book is very thin, but Jack thinks its the best book that he _. A. read B. has read C. will read D. reads3. Would you like to go and see Despicable Me 2 with me tonight? Id like to, but I _ it twice. A. see B. will see C. have seen D. am seeing以上我們已經(jīng)通過歸納總結(jié)和練習(xí)對本課的語法內(nèi)容有了一定的了解，下面就讓我們根據(jù)之

10、前練習(xí)的考察情況進(jìn)一步選擇講解該語法項的重難點(diǎn)。We use the present perfect tense to talk about an action that started in the past and continues to the present.I have lived here since I was born.He has lived here since he came to Nanjing.現(xiàn)在完成時-用法We use the present perfect tense to talk about an action that happened in the p

11、ast and has a connection with the present.Eddie has just eaten Hobos food.(Eddie ate the food, and now Hobo has nothing to eat.)I have lost my mobile phone.(I lost my mobile phone, and now I have no mobile phone to use.)We also use the present perfect tense to talk about how many times an action has

12、 happened till now.I have already read this book many times.We can use these time expressions with the present perfect tense. already yet ever never just recently since for現(xiàn)在完成時-與already，yet，ever，never，just，recently連用1. already 已經(jīng)，常用于肯定句中。 I have already seen the film. 我已經(jīng)看過這部電影了。2. yet 1) 已經(jīng)，常用在疑問句

13、中。 Has Linda read the book yet? 琳達(dá)已看過這本書了嗎? 2) 還，仍然，常用于否定句和疑問句。 He has not begun to work yet. 他還未開始工作。3. ever 曾經(jīng)，主要用于疑問句 Have you ever wanted to travel around the world? 你曾經(jīng)想要周游世界嗎？4. never 從來沒有，表示否定 He has never seen such a tall building. 他從未見過這么高的樓。 5. just 剛剛，常用于肯定句中 I havejust finished lunch. 我剛

14、吃過午飯。6. recently 不久前，最近 I havent seen them recently. 我近來沒見過他們。 Have you used it recently? 你最近用過它么？since, for的用法詳見下單元語法課件。現(xiàn)在完成時-構(gòu)成1. 現(xiàn)在完成時的肯定句句型 主語（第一, 二人稱單, 復(fù)數(shù)）+ have （第三人稱復(fù)數(shù)） + have （第三人稱單數(shù)） + has + 過去分詞e.g.I have finished my homework.He has written six poems. They have seen that film. 2. 現(xiàn)在完成時的否定句

15、句型 主語 + have / has + not + 過去分詞 + e.g.I have not seen the movie yet.He hasnt come here yet.hasnt = has nothavent = have not3. 現(xiàn)在完成時的一般疑問句句型 Have / Has + 主語 + 過去分詞 + Yes, 主語 + have / has.No, 主語 + have / has not.e.g.Have you finished the work?Yes, I have. / No, I havent.Has she arrived here?Yes, she h

16、as. / No, she hasnt.Regular verbsIrregular verbsBase formPast participleBase formPast participlevisitvisitedhithitrepairrepairedputputlivelivedmeetmetmovemovedmakemadetrytriedsellsoldstudystudiedgivegivenfitfittedwritewritten動詞的過去分詞planplannedthinkthought規(guī)則動詞的過去分詞的構(gòu)成大多數(shù)的動詞的過去分詞是規(guī)則的，只需在動詞后加-ed；例如： wo

17、rkworked listenlistened jumpjumped visitvisited2.在以-e結(jié)尾的動詞后只加-d；例如： closeclosed likeliked agreeagreed movemoved3.在以輔音字母加y結(jié)尾的動詞，應(yīng)將y改 為i再加ed；例如： studystudied carrycarried trytried worryworried4.以重讀閉音節(jié)結(jié)尾的動詞，要雙寫末尾 的輔音字母再加-ed；例如： stopstopped dropdropped 不規(guī)則動詞的過去分詞的構(gòu)成有些動詞的原形和過去分詞相同；例如： putput hurthurt bec

18、omebecome runrun2.改變單詞中間元音字母；例如： sitsat winwon holdheld3.把單詞結(jié)尾的字母d改為t；例如： lendlent spendspent sendsent還有些動詞的過去分詞是不規(guī)則的，需要特殊記憶。（課本第122-123頁）4.以eep結(jié)尾的動詞，把eep改為ept；例如： keepkept sleepslept 5. 過去分詞以aught或ought結(jié)尾；例如： teachtaught buybought 6.以ay結(jié)尾的動詞，把a(bǔ)y變成aid；例如： saysaid paypaid7.在原形詞尾加n或en；例如： givegiven ea

19、teatenSpeakingAn exampleM: _ you _ (see) any films recently, Sandy?S: No, I havent. What about you?M: I _ (see) one last Saturday. S: Whats it about?M: Its about the changes in Beijing over the past century. From this film, I _ (learn) more about Beijings past and present.S: Oh, I think I _ (hear) a

20、bout the film. Do you plan to see it again.M: Yes, Id like to.Haveseensawhave learnthave heard Lets practiseA: Have you ? B: Yes, I have. / No, I havent.A: Has he / she ? B: Yes, he / she has. No, he / she hasnt.brush your teethbrushed your teethA: Have you ? B: Yes, I have. / No, I havent. read the

21、 book read the bookA: Has she ?B: Yes, she has. / No, she hasnt.have PizzaA: Have they ?B: Yes, they have. / No, they havent.had Pizza Making sentencesMr. Wu asks the students to completethe sentences below using the present perfect tense. Help them complete the sentences.1. They _ (finish) their ho

22、mework already.2. John _ never _ (visit) China.3. Mr Li _ (repair) over ten bicycles since Monday.4. We _ (not see) each other for years.5. My parents _ (come) back yet.6. Our teacher _ (teach) us a lot about the history of China.have finishedhave not comehas taughthave not seenhas repairedhas visit

23、edPresent Perfect Tense - Mind mapTime for reflection _ you ever _ with a group? Yes, I have. A. Did, study B. Are, studying C. Were, studying D. Have, studied2. Lucy, _ you _ your ticket? Not yet. A. did; find B. have; found C. has; found D. do; findI. Multiple choice.3. My grandmother _ a lot of c

24、hanges in Tianjin since she came here. (2011天津) A. sees B. can see C. will see D. has seen4. My aunt is a writer. She _ more than ten books since 1980. (2011北京) A. writes B. wrote C. has written D. will write 5. Why wont you go to the movie with me, Gina? Because I _ it twice. (2011襄陽) A. see B. hav

25、e seen C. saw D. will see6. China develops so fast. Thats true. It _ a lot already. (2011安徽蕪湖) A. changes B. changed C. will change D. has changed 7. Id like to introduce my best friend to you, Peter. Thank you, Lucy. But we _ already. (2012河南) A. meet B. met C. will meet D. have met8. Since 2000, J

26、ingmen has become a new city. Everything _. (2013湖北荊州) A. is changed B. was changed C. had changedD. has changed 9. Julia isnt going to the cinema with us because she _ the film. (2013浙江湖州) A. sees B. saw C. will see D. has seen10. Look at these stamps. I _ them for five years. Wow, they are wonderf

27、ul. (2013湖南衡陽) A. kept B. have kept C. have bought1. I _ (have) dinner. I am full.2. We _ (read) this story.3. They _ (see) the movie.4. She _ (buy) some nice toys.5. Hurry up! Lunch _ already _ (begin).6. We _ (wash) our clothes. Theyre clean now.7. _ he ever _ (ride) a bike? have had have readhave seenhas bought have washedII. Fill in the blanks.Has riddenhasbegun1. Ive already had dinner. (否) I _ _ dinner _.2. He has