完成时态专题.ppt

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1、现在完成时用法一现在完成时用法一 表示表示: 过去发生的动作对现在造成的影响和结过去发生的动作对现在造成的影响和结果果. 构成构成: have/has + 过去分词过去分词 时间状语: already, yet,never,ever, before,just already 和和 yet 的的区别区别表示过去发生的某个动作对现在造成的影响表示过去发生的某个动作对现在造成的影响或结果。或结果。 Have you finished your work yet? Yes,I have.Ive just finished it. Ive already finished it. No, I haven

2、t finished it yet.现在完成时谓语动词的构成：现在完成时谓语动词的构成：助动词have/has(not) +V-ed（P.P.过去分词） I _(finish) the composition already. He _(learn) English for three years. We/You/ They. She/It.Can you find out the sentences of the present perfect tense?1.Youve missed him.2.Hes just left. 3.Youve just missed it.4.Hes jus

3、t gone. 5.Ive only just started.6.Ive had a silly morning.7. Ive just followed you all over the city.时间状语：时间状语：already-yet ever-never just once/twice before I _ (do) my homework already. He _(not finished) his homework yet. _you ever _ (be) to Haiwaii? We _ never _ (see) such an exciting match befor

4、e. Mother _ just _(clean) the house. Please dont come in. They _(practice) this dialogue twice. I _ (see) this girl before.have donehas not finishedHavebeenhaveseenhascleanedhave practicedhave seenalready 和和 yet 的区别的区别yet 只用于否定句和疑问句当中只用于否定句和疑问句当中,yet 表示表示“已已经经”,notyet表示表示“还没有还没有” 1.Im not ready yet.

5、2.Have you finished your homework yet?already 也表也表“已经已经”,强调动作的完成强调动作的完成,常与肯定常与肯定的陈述句连用的陈述句连用 (可用于疑问句可用于疑问句,表示惊讶表示惊讶)1.I have already read the book four times.2.Have you finished lunch already? Its only 11 oclock!现在完成时用法二现在完成时用法二表示表示: 过去发生的动作过去发生的动作,一直延续到现在一直延续到现在, 甚至有可能继续延续下去甚至有可能继续延续下去. 时间状语时间状语: 通

6、常和通常和for, since 引导的时间状引导的时间状语连用语连用. for和和since的区别的区别 用法用法2：表示动作或状态从过去开：表示动作或状态从过去开始一直持续到现在甚至将来始一直持续到现在甚至将来Jeff borrowed the books two days ago.Jeff has kept the books for two days.标志时间短语标志时间短语：for +一段时间, since+过去的时间点, these years, so far, in the past/last years We _ (learn) English for three years/

7、since two years ago/since 2000. Mr. Green _ (be) in China these years. They _(write) 15 songs so far. The population _ (grow) more slowly in the past ten years.have learnedhas beenhave writtenhas grown选用选用forfor和和sincesince填空填空: :1.We havent seen each other _ a long time.1.We havent seen each other

8、_ a long time.2.His father has been in the Party _ 10 years 2.His father has been in the Party _ 10 years ago.ago.3.The film has been on _ 20 minutes.3.The film has been on _ 20 minutes.4.Mr Green has worked here _ he came to 4.Mr Green has worked here _ he came to China.China.5.His grandparents hav

9、e been dead _ several 5.His grandparents have been dead _ several years.years.6. Its five years _ we met last time.6. Its five years _ we met last time.forforsincesinceforforsincesinceforforsincesince切记用法切记用法2的动词仅限于持续动词的动词仅限于持续动词短暂性动词不能和短暂性动词不能和for, since 引导的时间状语连用引导的时间状语连用必须改成延续性动词必须改成延续性动词短暂性动词短暂性

10、动词变变延续性动词最常见的有：延续性动词最常见的有：buy-have, borrow-keepleave-be away (from) die-be dead open-be open, close-be closed come-be here/be in begin/start-be on put on-wear catch a cold-have a cold 举例：举例：1.1.我买了这块手表五年了。我买了这块手表五年了。2.2.这位老人已经死了十年了。这位老人已经死了十年了。 I I have boughthave bought this watch for five years/ t

11、his watch for five years/sincesince 5 years 5 years ago.ago. I I have hadhave had this watch this watch forfor five years. five years. The old man The old man has been deadhas been dead forfor ten years/ ten years/sincesince 10 10 years years agoago. .The old man The old man has diedhas died for ten

12、 years. for ten years. have been to ,have gone to的的 区别区别have been to have been to 曾经去过曾经去过 ( (不在那儿不在那儿) )have gone to have gone to 已经去了已经去了( (不在这儿不在这儿) )have been in have been in 到到 来来 (come(come的延续性动词的延续性动词) )3.3.他已经回来三天了。他已经回来三天了。4.4.自从六点钟他就来这儿了。自从六点钟他就来这儿了。5.5.我离开家乡已十年了。我离开家乡已十年了。 He He has comeh

13、as come back for 3 days. back for 3 days. He He has beenhas been back back forfor 3 days/ 3 days/sincesince 3 days 3 days agoago. . He He has beenhas been here since 6 oclock. here since 6 oclock. He He has comehas come here since 6 oclock. here since 6 oclock. I I have lefthave left hometown for 10

14、 years. hometown for 10 years. I I have been awayhave been away from hometown for 10 years. from hometown for 10 years.1.A: Wheres Jim, Li Lei?B: He _he school library.2.The Greens _China for three years.We _the Great Wall twice. Its very beautiful.has gone tohave been inhave been to BAABB stay A用用H

15、ave been to, have gone to, have been in 填空填空1.Mike and his parents _ the north for half a year.2.Mum is not at home now. she _ the shop.3._ you ever _ to kunming ? Never.4.Where _ you _ these days?5.Has Jim arrived yet? Yes, he _ here for several days.6.Where is Peter? I dont know where he _.7. Hi J

16、im! Where _ you _ ? Li Lei is looking for you.have been inhas gone tohave beenHave beenhas been has gonehave beenHe _(work) in our school for one year.He _(come) to our school last year/in 2002.They _(cook) the supper already.They _ (cook) the supper half an hour ago.Have been & have goneI have been

17、 to Beijing.He has gone to Beijing.我去过北京他已经去了北京Lets practice:Have you done.? When did you do it? Exercises:Turn these sentences into another way without changing the meaning.1. I bought the calculator a week ago .I _ _ the calculator for a week .2. Tom joined the Young Pioneer last month .Tom _ _ a

18、Young Pioneer for a month.3. Its 10 oclock now .The meeting began at 8:30.The meeting _ _ for one hour and a half.havehadhas beenhaslasted4. Mr. Li left just now .Mr. Li _ just _ .5. I came here in 2000.I _ _ here_ 2000.6. The cat died three days ago .The cat _ _ _ for three days .7. He borrowed the

19、 book last Friday.He _ _ the book for several days .8. Ken closed the window because of the heavy rain.Ken _ _ the window _ it began to rain.has gonehavebeensincehasbeendeadhaskepthasclosedsinceREWRITE THE SENTENXES1. I have already found one.（否定句）（否定句）2. Has the rain stopped yet?（肯、否定回答）（肯、否定回答）3.

20、Have you rented the video yet?（同上）（同上）4. Its going to rain all day.（提问）（提问）5. She took a video off the shelf. （提问）（提问）6. Peter went to the video shop alone.（同义句）（同义句） Peter went to the video shop _ _ . by himselfChoose the correct answers1.Ken was _ trouble again. A.intoB.inC.atD.on2.We congratulate

21、d him _ the good mark. A.forB.onC.inD.about3.Listen carefully and reply _ my question. A./ B.onC.toD.of4.Everyone was amazed _ the bad news. A.ofB.withC.at D.to5.My schoolbag is quite different _ yours A.between B.fromC.inD.with6.I _ you can get it.Its too high for you. A.dont thinkB.believe C.cant

22、think BBCCBAeat _ _ do_ _buy_ _ come_ _lose_ _ see _ _finish_ _ clean_ _fall_ _ cut _ _turn _ _ go_ _ate eatendid donebought boughtcame comelost lostsaw seenfinished finishedcleaned cleaned fell fallencut cutturned turnedwent gone Write the past and past participle forms of the verbs:1.Give out the

23、past form and past participle leave _ _ go _ _ do (does)_ _ make_ _ take _ _ have(has)_ _ get_ _ is(am)_ _ are_ _ feed_ _2.Give the proper form of each of the words. amaze(adj)_ selfish(opp.)_ tidy (adj) _ behave(n)_ strange(adv)_ tidy (syn.)_ congratulate(n)_ immediately(syn)_ _amazedtidystrangelyc

24、ongratulationat once right now/awayunselfishbehaviorcleanRewrite the sentences1.I think Ken is well.（改为否定句）（改为否定句）2.He is behaving very strangely. （划线提问）（划线提问）3.Im bored with the exercises.（改为同义句）（改为同义句）4.Make a word with these letters.（同上）（同上） 5.You havent got any money.（同上）（同上）6.Ken was very good

25、for a week.（划线提问）（划线提问）I dont think Ken is well.How is he behaving?Im fed up(tired of) the exercises.Use these letters to make a word.You havent any money.How long was Ken very good?Fill in the blanks with already or yet.1.“Where is Kate?” “Shes _left”2.Its nearly 10 oclock. Has Anne woken up _?3.Th

26、ey havent finished dinner _.4.She has gone _.5.I havent worn my new coat_.6.-Could you do the washing up? -I have _ done it.alreadyyetyetalreadyyetalreadyGIVE THE PROPER FORM OF EACH OF THE WORDS rain（形容词）（形容词） good （最高级）（最高级） real（副词）（副词） good（副词）（副词） own（名词）（名词） suggest（名词）（名词） see（过去分词）（过去分词） pay

27、（过去分词）（过去分词） son（同音词）（同音词） indoors（反义词）（反义词） rainy best really well owner suggestion seen paid sun outdoorsRewrite the sentences:1. Have you packed your suitcase?(作肯定和作肯定和否否 定回答）定回答）(already）_ (yet) _2. I booked my ticket last month.Yes ,I have already packed my suitcase.No, I havent packed my suitcase yet.When did you book your ticket?