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1、新目標新目標八年級八年級(下下)Unit 6How long have you been collecting shells?Unit 6Discuss the following questions:Did youlast night/yesterday?When did you start?I startedatHow long have you?I haveforHow long have you been doing?Ive been doingfor+一段時間一段時間since+一個時間點一個時間點 Yao Ming1980:be born1989 2011:play basketb

2、allHe started playing basketball in 1989.He has been playing basketball since 1989.He has been playing basketball for 20 years.Li Yuchun 1984:be born1987 2011:singHow long has she been singing?When did she start singing?She started singing in 1987.She has been singing for 22 years.since 1987.成龍成龍(Ja

3、ckie Chan)1954:be born1961now:actHe has been acting for 49 years.How long has Jackie Chan been acting?He has been acting since 1961.Michael Jackson 1958:be born1963 2009:singerHow long has Michael Jackson been a singer?Michael Jackson has been a singer for 45 years.A:Whats your hobby?B:A:How long ha

4、ve you been?B:I have been for/since.1.How long did you sleep last night?2.When did you start class today?3.How long have you been in class today?I slept for hours last night.We started class at today.I have been in class for hours today.QuestionsIve been skating for five hours.How long have you been

5、 skating?1b Listening How long?AlisonSamVictor Celia Ive been skating for five hours.I skated for four hours.Ive been skating for five hours.I skated for two hours.PAIRWORK Ask and answer questions about the people in the picture.A:How long has Alison been skating?B:Shes been skating for five hours.

6、A:How long did Sam skate?B:He skated for four hours.2a Listening 1.How long did you skate today?2.How long have you been skating today?3.Was this your first skating marathon?4.Do you skate every day?5.When did you get your first pair of skates?6.How long have you been skating?Questions 1.How long di

7、d you skate today?2.How long have you been skating today?3.Was this your first skating marathon?4.Do you skate every day?5.When did you get your first pair of skates?6.How long have you been skating?2b ListeningAnswersa.No,I skated in a marathon last year.b.Yes,I do.c.For six hours.d.Since I was sev

8、en years old.1.Congratulations on winning the skating marathon!Congratulations!祝賀你！祝賀你！Congratulations on doing sth.祝賀你做了某事祝賀你做了某事2.I skated in a marathon last year.我在去年的一場馬拉松比賽中滑過冰。我在去年的一場馬拉松比賽中滑過冰。3.How long did you skate?(一般過去時一般過去時)How long have you been skating?(現(xiàn)在完成進行時現(xiàn)在完成進行時)How long have you

9、 been here?(現(xiàn)在完成時現(xiàn)在完成時)How long?多長時間多長時間?(疑問句疑問句)e.g.:How long have you been waiting?你已經等了多久你已經等了多久?How long will the meeting last?會議將持續(xù)多長時間會議將持續(xù)多長時間?4.I have been collecting shells for five years.現(xiàn)在完成進行時的構成現(xiàn)在完成進行時的構成:have/has been+現(xiàn)在分詞現(xiàn)在分詞,表示從過去某一時間開始一表示從過去某一時間開始一直延續(xù)到現(xiàn)在的動作直延續(xù)到現(xiàn)在的動作,并有肯能持續(xù)下去。并有肯能持續(xù)下

10、去。現(xiàn)在完成進行時的這種用法多用于延續(xù)性現(xiàn)在完成進行時的這種用法多用于延續(xù)性動詞動詞,比如：比如：work,live,study等等,它所表它所表示的動作可能一直延續(xù)到說話時為止示的動作可能一直延續(xù)到說話時為止,或或可能繼續(xù)持續(xù)下去?，F(xiàn)在完成進行時還可可能繼續(xù)持續(xù)下去?，F(xiàn)在完成進行時還可以表示從過去到現(xiàn)在的重復性動作。以表示從過去到現(xiàn)在的重復性動作?，F(xiàn)在完成時的語法作用現(xiàn)在完成時的語法作用(1)在強調指出動作還未結束在強調指出動作還未結束,還要繼續(xù)下還要繼續(xù)下去。如：去。如：Ive been reading this book for two hours,but I havent finish

11、ed it.這本書我已讀了兩個小時了這本書我已讀了兩個小時了,但我還沒讀完。但我還沒讀完。(2)強調動作延續(xù)時間的長久或帶感情色彩。強調動作延續(xù)時間的長久或帶感情色彩。She has always been working like that.她一貫是這樣工作的。她一貫是這樣工作的。(3)動作不包含持續(xù)意義的動作動作不包含持續(xù)意義的動作,要表示要表示延延 續(xù)到現(xiàn)在的動作續(xù)到現(xiàn)在的動作,要用現(xiàn)在完成進行時要用現(xiàn)在完成進行時。Theyve been building a ship.他們一直在造一艘船。他們一直在造一艘船。(在進行在進行)(4)現(xiàn)在完成進行時也可表示現(xiàn)在以前這現(xiàn)在完成進行時也可表示現(xiàn)

12、在以前這 段時間反復發(fā)生的事情。段時間反復發(fā)生的事情。Weve been seeing quite a lot of each other recently.最近我們經常見面。最近我們經常見面。2c PAIRWORKA:How long have you been skating?B:Ive been skating since I was seven years old.定義定義:表示某動作從過去開始表示某動作從過去開始,一直延一直延續(xù)到現(xiàn)在經歷了多長時間續(xù)到現(xiàn)在經歷了多長時間,常有可能持常有可能持續(xù)下去續(xù)下去,常和表示一段時間的狀語連用。常和表示一段時間的狀語連用。此時態(tài)包含現(xiàn)在進行時的含

13、義此時態(tài)包含現(xiàn)在進行時的含義,也包含也包含現(xiàn)在完成時的含義?，F(xiàn)在完成時的含義。時間狀語時間狀語:1.for+一段時間一段時間 2.since+過去的時間點過去的時間點 3.since+一般過去時的句子一般過去時的句子構成：構成：have/has been+V-ing+注意注意:for表示時間的持續(xù)表示時間的持續(xù),后跟時間段。后跟時間段。表示一段時間表示一段時間,多與帶數(shù)詞的名詞連用多與帶數(shù)詞的名詞連用,謂語需用延續(xù)性動詞。謂語需用延續(xù)性動詞。since表示表示“自從過去某一時間點以來自從過去某一時間點以來”,后面接時間點后面接時間點,強調動作或狀態(tài)一直強調動作或狀態(tài)一直延續(xù)到現(xiàn)在延續(xù)到現(xiàn)在,一

14、般用現(xiàn)在完成時或現(xiàn)在一般用現(xiàn)在完成時或現(xiàn)在完成進行時完成進行時。since后可接表時間的名詞后可接表時間的名詞或名詞短語或名詞短語,也可接一個時間狀語從句。也可接一個時間狀語從句。Ive been studying English for two years.Ive been studying English since two years ago.He has been collecting shells since he was ten.否定句：否定句：主語主語+have/has+not+doing (現(xiàn)在分詞現(xiàn)在分詞)1.I havent been writing the letter

15、for two hours.2.He hasnt been sleeping for 4 hours.3.一般疑問句：一般疑問句：Have/Has+主語主語+been 4.+doing(現(xiàn)在分詞）現(xiàn)在分詞）?5.1.Have you been writing the letter for two hours?6.2.Has he been sleeping for 4 hours?QuestionsAnswers DifferenceHow long did you do?I did forstopHow long have you been doing?I have been doing f

16、or since nine oclock since 1995.since ten year ago.since I was years old.continue現(xiàn)在完成進行時與一般過去時的區(qū)別現(xiàn)在完成進行時與一般過去時的區(qū)別 這兩種時態(tài)所表示的動作雖然都發(fā)這兩種時態(tài)所表示的動作雖然都發(fā)生在過去生在過去,但是但是現(xiàn)在完成進行時現(xiàn)在完成進行時強調的強調的是動作的持續(xù)或進行是動作的持續(xù)或進行,而而一般過去時一般過去時則則只表示過去的動作或狀態(tài)只表示過去的動作或狀態(tài),和現(xiàn)在沒有和現(xiàn)在沒有什么聯(lián)系。例如：什么聯(lián)系。例如：He has been swimming since four oclock.他從

17、四點起一直在游泳。他從四點起一直在游泳。(現(xiàn)在還在游現(xiàn)在還在游)He swam at four oclock.四點鐘他在游泳。四點鐘他在游泳。(不涉及現(xiàn)在是否還在游不涉及現(xiàn)在是否還在游)How long has she been dancing?She has been dancingfor 3 hours.since 3 hours ago.3 hours45 minutesHow long has she been learning?She has been learningfor 45 minutes.since 45 minutes ago.What is/are doing?How

18、long has/have.been?Using since/for:45 minutes half an hour 2 year 5 years 1 hour 2 hours一、選擇填空一、選擇填空()1.Ive been skating _ three hours today.A.about B.forC.since()2.Weve been studying English _ two years ago.A.for B.fromC.sinceBC()3.She started skating _ 9 oclock.A.for B.at C.since()4.Sam _ collecti

19、ng shells for five years.A.isB.started C.has been()5.How long have you _ today?A.swimming B.been swimming C.started swimmingBCB二、用二、用 for或或since填空填空1.I have been practicing my oral English _ 10:30.2.Mary has been running _ 15 minutes.3.Sarah has been sleeping _ 9:00.4.Dale has been talking on the ph

20、one _ 5 minutes.sinceforsincefor5.Louie has been studying Chinese _ he was 6 years old.6.I have been watching you _ 10 minutes.7.Lana has been running _ 15 minutes8.Tom has been sleeping _ 9:00.sinceforforsince9.He has been living here _ 2001.10.She has been doing her homework _ two hours.11.I have

21、been watching TV _ 10 minutes.12.How long has Mary been a teacher?_ two years ago.sinceSinceforforIII.將下列漢語翻譯成英語。將下列漢語翻譯成英語。1.雨已經下了兩個星期了。雨已經下了兩個星期了。_2.你奶奶從年輕時就一直運動嗎？你奶奶從年輕時就一直運動嗎？是的是的,她一直運動。她一直運動。_It has been raining for two weeks.Has your grandmother been doing sports since she was young?Yes,she has.3.這些天他一直沒有打籃球。這些天他一直沒有打籃球。_When did you start collecting stamps?