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1、UNIT 1 PAST AND PRESENTGrammarTHE PRESENT PERFECT TENSE現(xiàn)在完成時(shí)態(tài)We use the simple past tense to talk about what happened at a definite time in the past.Past present Eddie was born four years ago.We use the present perfect tense to talk about things that started in the past and still have some connectio

2、n with the present. Eddie has lived with Millie since he was born. Eddie has lived with Millie for four years. presentPastPastpresent4 years一、現(xiàn)在完成時(shí)的構(gòu)成一、現(xiàn)在完成時(shí)的構(gòu)成1. 現(xiàn)在完成時(shí)的肯定句現(xiàn)在完成時(shí)的肯定句句型句型 主語（第一、二人稱單、復(fù)數(shù)）主語（第一、二人稱單、復(fù)數(shù)）+HAVE 主語（第三人稱復(fù)數(shù)）主語（第三人稱復(fù)數(shù)） +HAVE +過去分詞過去分詞 主語（第三人稱單數(shù)）主語（第三人稱單數(shù)） +HAS We have lived in

3、Beijing. He has lived in Beijing. I have finished my homework.一、現(xiàn)在完成時(shí)的構(gòu)成一、現(xiàn)在完成時(shí)的構(gòu)成2. 現(xiàn)在完成時(shí)的否定句現(xiàn)在完成時(shí)的否定句 句型句型 主語主語+have/has+not+過去分詞過去分詞+ I have not seen the movie yet. He hasnt been to Beijing since then.I / They/ We / You have moved.He / She / It hasHave you.? Has he.?Yes, I have Yes, he has.No, I

4、havent. No, he hasnt . has not = hasnt have not= havent The table below shows how we form the past particles of some verbs. most verbs Irregular verbs Infinitive Past particle Infinitive Past particlevisitvisitedcomecomelivelivedseeseenrepairrepairedbebeenfinishfinishedgivegivenmovemovedwritewritten

5、watchwatchedmakemadetraveltravelledputputMaking sentencesMr.Wu.Wu asks the students to complete the asks the students to complete the sentences below using the present perfect sentences below using the present perfect tense. Help them complete the sentences.tense. Help them complete the sentences.1.

6、1. They_(finishThey_(finish) their homework.) their homework.2.2. Mr. And Mr. And Mrs.LiMrs.Li _(not come) back yet. _(not come) back yet.3.3. John_ (play) this computer game a few John_ (play) this computer game a few times.times.4.4. We _ (not We _ (not see)thatsee)that film yet film yet5.5. MrMr

7、Dong _ (repair) over ten Dong _ (repair) over ten bicycle since last Monday.bicycle since last Monday.6.6. You _ (not You _ (not visit)mevisit)me for a long for a long time.time.have finishedhavent comehas playedhave not seenhave not repairedhave not visited3. 現(xiàn)在完成時(shí)的一般疑問句現(xiàn)在完成時(shí)的一般疑問句句型句型 Have/Has+Hav

8、e/Has+主語主語+ +過去分詞過去分詞+ +. .Have you finished the work?Have you finished the work?Has she arrived here?Has she arrived here?4. 4. 現(xiàn)在完成時(shí)的特殊疑問句現(xiàn)在完成時(shí)的特殊疑問句句型句型 特殊疑問詞特殊疑問詞+have/has+have/has+主語主語+ +過去分詞過去分詞+ +. .How many times have you been How many times have you been to the Great Wall?to the Great Wall?

9、Chat timeMillie and Sandy are talking about an exhibition of and Sandy are talking about an exhibition of the history of Beijing. Complete their the history of Beijing. Complete their conversation. Use the correct forms of the verbs conversation. Use the correct forms of the verbs in the brackets.in

10、 the brackets.M : _ you _ (M : _ you _ (see)anysee)any exhibition exhibition recently, Sandy?recently, Sandy?S : No, I _.What about you?S : No, I _.What about you?M : Yes, I _ (see) one. I saw M : Yes, I _ (see) one. I saw it at the history museum last week. it at the history museum last week. S : W

11、hat is it about?S : What is it about?M : I _ (forget) the M : I _ (forget) the title.Ittitle.Its s about changes in Beijing over the past about changes in Beijing over the past century.century.Haveseenhaventhave seenhave forgottenS: Oh, yes. I _ (hear) about S: Oh, yes. I _ (hear) about it._ your co

12、usin _ (go) with it._ your cousin _ (go) with you?you?M : No, he _.He _ (be) very M : No, he _.He _ (be) very busy this week.busy this week.S : Did you enjoy the exhibition? S : Did you enjoy the exhibition? M : Yes, I M : Yes, I did.Idid.I _ ( _ (learn)alearn)a lot lot about Beijingabout Beijings p

13、ast and present. Its past and present. Its s a good exhibition and I _ a good exhibition and I _ (decide) to see it again. Do you want (decide) to see it again. Do you want to go with me? to go with me? S : Sure. I wonS : Sure. I wont miss it this time.t miss it this time.have heardgoDidhas beenlear

14、nthave decidedidnt用括號(hào)中動(dòng)詞的適當(dāng)形式填空用括號(hào)中動(dòng)詞的適當(dāng)形式填空1. He _ (wait) for an hour. 2. I (not finish) the work yet.3. you (know) him since then?4. I _ (hear) from my father recently.5. We _ (be) there many times in the past 3 years.6. The dog _ (die) since 3 days ago.7. They _ (finish)the work so far.8. How lon

15、g you _ (stay) at home already?has waitedhavent finishedHaveknownhave heardhave beenhas been deadhave finishedhavestayedHomework9. I _ (not read) the book before.10. He just (do) it.11. My sister _ (walk) to school every day last year.12. We _ (have) an exam again sometime next week.13. By 2000, we _ (plant) 2000 trees.14. Lucy _ _ (go) to Shanghai. She _ (leave)this morning. 15. Tom _ (buy) the bike for 2 years.hasdonewalkedwill havehad plantedhas gonelefthave boughthavent read