初中英語人教版八年級(jí)下冊(cè)現(xiàn)在完成時(shí)復(fù)習(xí).ppt

1、The Present Perfect Tense(Revision),現(xiàn)在完成時(shí)復(fù)習(xí),Welcome,請(qǐng)同學(xué)們回憶自己曾經(jīng)做過的動(dòng)作：,For example: 1. I did my homework last night. 2. I bought a book last Sunday.,那么哪些動(dòng)作對(duì)現(xiàn)在的情況造成了影響呢？請(qǐng)你說出來,For example: 1. I have finished my homework now. 2. I have had a book for a week.,表示動(dòng)作發(fā)生在過去，,對(duì)現(xiàn)在的影響或結(jié)果,或 動(dòng)作持續(xù)的狀態(tài)，且可能繼續(xù)下去。,Wow! T

2、he Classroom is so clean. Who has cleaned it? 意義： We have known each other for about ten years. 意義：,教室已經(jīng)打掃，對(duì)現(xiàn)在的情況產(chǎn)生了影響,說明我們從十年前認(rèn)識(shí)一直到現(xiàn)在，且繼續(xù)延續(xù)。,下面請(qǐng)同學(xué)們歸納出現(xiàn)在完成時(shí)的基本結(jié)構(gòu)：,1、肯定句：,2、否定句：,3、一般疑問句：,主語+have/has+not+過去分詞+,Have/Has +主語+ 過去分詞+? Yes，主語+have/has； No， 主語+havent/hasnt,試一試： 1.A: Do you want a pen ? B: N

3、o, I dont . I _ already _ (buy) one . 2. _ you ever _(be) to Paris? 3.A:Where is your mother ? B: She _ (go) shopping today. 4. I _ ( not finish) the homework yet. 5.Li Lei _ just _ (give) the cakes to Polly. 6. There _(be) great changes in Rugao these years. 7.My father _ (go) to Beijing . He isnt

4、at home . 8 I _never_ (be) to London ?,have,been,Have,bought,has gone,have been,given,has,havent finished,has gone,been,have,用法(一): 1.表示過去發(fā)生的某一動(dòng)作對(duì)現(xiàn)在造成的影響或結(jié)果,常與一些時(shí)間狀語,如:already, yet, ever, never, just, before, once, twice等連用，也可以和包括現(xiàn)在在內(nèi)的時(shí)間狀語，如these days, today, this year, so far等連用。,用法2、 表示過去發(fā)生的動(dòng)作或存在的

5、狀態(tài)，一直持續(xù)到現(xiàn)在，可以和表示從過去某一時(shí)刻延續(xù)到現(xiàn)在的一段時(shí)間的狀語連用，標(biāo)志性時(shí)間短語for +時(shí)間段，since+時(shí)間點(diǎn)/從句，in the last ten years等，謂語只可用延續(xù)性動(dòng)詞。,borrow,keep,open,be open,英語中行為動(dòng)詞根據(jù)詞義可分為兩種，一種是延續(xù)性的，如teach, study, learn, live等。一種是非延續(xù)性的，如open, close, die, buy, leave, come等，表示動(dòng)作的發(fā)生與結(jié)束于一瞬間完成，不能再延續(xù)，所以它的現(xiàn)在完成時(shí)不能和表示延續(xù)的時(shí)間狀語連用，即不能與for+時(shí)間段, since+時(shí)間點(diǎn)/從句連

6、用，也不能用在how long引導(dǎo)的特殊疑問句中。,常見瞬間動(dòng)詞巧記：,開始離去，借來還， （begin, leave, go, borrow, come, return） 出生入死，買到家。 (join, die, buy, arrive),常見非延續(xù)性動(dòng)詞與延續(xù)性動(dòng)詞之間的轉(zhuǎn)換： open - 2. die - start/begin- 4. finish - get up - 6. become- join- 8. leave- fall ill/asleep- 10. arrive- 11. borrow- 12. buy-,be open,be in/at,be on,have,ke

7、ep,be up,be ill/asleep,be a member/be in,be away,be,be over,be dead,請(qǐng)你來找茬兒： 1.The film has begun for five minutes. 2.His mother has died since two years ago. 3.I have bought the computer for a long time. 4.Helen has joined the Youth League since 2000. 5.How long have you fallen ill?,been on,been dea

8、d,had,been in,been ill,實(shí)力測(cè)驗(yàn) 根據(jù)提示填空 He _ (離開) for an hour. I _ (到達(dá)) at the station for five minutes. -May I _(借) your dictionary? -Sorry, I _ (借) it to Mary. -when _ she _ (借) it? - Two days ago，she_ it for two days. 4. The factory _(開業(yè)) since last year. 5.We _ (參加) the Youth League for two years. 6.

9、The dog _ (死) since 3 days ago. 7.The film _ (開始) for five minutes. 8.How long _ you_ (待在) in London?,has been away,have been,borrow,has been open,have been in,has been dead,has been on,have lent,has kept,Tom four years ago.,現(xiàn)在完成時(shí)與一般過去時(shí),Tom for four years.,Tom since he was born.,was born,has lived,h

10、as lived,He _(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.,has worked,came,cooked,have cooked,have/has gone to have/has been in have/has been to,A,B,A,A,B stay,B,1.A: Wheres Jim, Li Lei? B: He _ the school library.