九年級(jí)英語(yǔ) Unit5 Grammar1課件 牛津版

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1、1)自從他出生以來(lái)，他就住在這里了。自從他出生以來(lái)，他就住在這里了。2)我們已經(jīng)住在這里三年了。我們已經(jīng)住在這里三年了。 What tense is used in the above sentences? He has lived here since he was born.We have lived here for four years.Present perfect tense have/ has + p.p. (past participle)1.Audrey had put all her effort into ballet training before she entere

2、d the film industry.2.Audrey had been a model before she became a Hollywood superstar.3.Audery had already won an Oscar for Best Actress when she won the Tony Awards.We use the past perfect tense to talk about an action that happened before another action in the past. The earlier action is expressed

3、 in the past perfect tense and the later action is expressed in the simple past tense.The Past perfect tense:過(guò)去完成時(shí)表示：過(guò)去完成時(shí)表示：(1)(1)在過(guò)去某一動(dòng)作之前已經(jīng)完成的動(dòng)作在過(guò)去某一動(dòng)作之前已經(jīng)完成的動(dòng)作 或存在的狀態(tài)；或存在的狀態(tài)；(2)(2)在過(guò)去某一時(shí)間之前發(fā)生的動(dòng)作或存在過(guò)去某一時(shí)間之前發(fā)生的動(dòng)作或存 在的狀態(tài)。在的狀態(tài)。1. Her grandmother had been ill before 2000.2. I had got everything ready

4、 by 11 a.m. yesterday.3. Tommy had finished his work before 10:00 last night.4. They had left the cinema by the time I arrived there.The structure of the past perfect tense: had + p.p (past participle) Which action happened first / earlier?1.Millie ran back to school because she had left her magazin

5、e in the classroom.2.Simon left school late because the football game had started late.3.Daniel arrived out of breath- he had gone to the wrong cinema.4.Amy had lost her purse and had to go to the police station. Which action happened first?1.They had already had breakfast before they arrived at the

6、 school.2.I had finished my homework by the time my mother came back home yesterday.3.By the time we got there, the bus had already gone.4.When I got to the classroom, I realized I had left my schoolbag at home.5.He said he had never seen such an exciting match before.6.The film had been on for 15 m

7、inutes when I got there.THE PAST PERFECT TENSE 構(gòu)成：構(gòu)成： 過(guò)去完成時(shí)由過(guò)去完成時(shí)由“助動(dòng)詞助動(dòng)詞hadhad（通用于各種人稱和數(shù)）（通用于各種人稱和數(shù)）+ +過(guò)去分詞過(guò)去分詞構(gòu)成。構(gòu)成。 用法：過(guò)去完成時(shí)表示用法：過(guò)去完成時(shí)表示在過(guò)去某一時(shí)間或動(dòng)作之前已經(jīng)發(fā)生或在過(guò)去某一時(shí)間或動(dòng)作之前已經(jīng)發(fā)生或完成了的動(dòng)作。它表示動(dòng)作發(fā)生的時(shí)間是完成了的動(dòng)作。它表示動(dòng)作發(fā)生的時(shí)間是“過(guò)去的過(guò)去過(guò)去的過(guò)去”。用。用byby、beforebefore等構(gòu)成的短語(yǔ)。等構(gòu)成的短語(yǔ)。 1.過(guò)去完成時(shí)常與過(guò)去完成時(shí)常與by, before 等詞構(gòu)成的短語(yǔ)連用。等詞構(gòu)成的短

8、語(yǔ)連用。如：1) 到上學(xué)期末為止我們已學(xué)了三千多個(gè)英語(yǔ)單詞了。到上學(xué)期末為止我們已學(xué)了三千多個(gè)英語(yǔ)單詞了。 We had learned over 3,000 English words by the end of last term.2) 他們?cè)谧蛱焓c(diǎn)以前已完成了任務(wù)。他們?cè)谧蛱焓c(diǎn)以前已完成了任務(wù)。 They had finished the task before ten oclock yesterday.2. 過(guò)去完成時(shí)常與過(guò)去完成時(shí)常與when, before, after引導(dǎo)的從句連用。引導(dǎo)的從句連用。如如: 1) 當(dāng)我們到達(dá)車站時(shí)火車已開走了。當(dāng)我們到達(dá)車站時(shí)火車已開走了。 T

9、he train had left when we got to the station.2) 在我們到家之前媽媽已做好了晚飯。在我們到家之前媽媽已做好了晚飯。 Mother had cooked supper before we got home.3) Tom喂好狗后就帶它去溜達(dá)。喂好狗后就帶它去溜達(dá)。 After Tom had fed the dog, he took it for a walk.3.3.如果時(shí)間狀語(yǔ)從句的動(dòng)作在主句動(dòng)作之前，則從句用如果時(shí)間狀語(yǔ)從句的動(dòng)作在主句動(dòng)作之前，則從句用 過(guò)去完成時(shí)，主句用一般過(guò)去時(shí)。如：過(guò)去完成時(shí)，主句用一般過(guò)去時(shí)。如： 1)做完作業(yè)后，他上床

10、睡覺了。做完作業(yè)后，他上床睡覺了。 After he had finished his homework, he went to bed. 2)當(dāng)他關(guān)了燈后當(dāng)他關(guān)了燈后, 就鎖上門回家了。就鎖上門回家了。 When he had turned off the light, he locked the door and went home. 4.4.過(guò)去完成時(shí)可用在賓語(yǔ)從句中或通過(guò)上下文表示。如：過(guò)去完成時(shí)可用在賓語(yǔ)從句中或通過(guò)上下文表示。如： 1)1)他說(shuō)他已買了一輛新自行車。他說(shuō)他已買了一輛新自行車。 He said he had bought a new bike. 2) 我同桌告訴我她去

11、過(guò)北京兩次了。我同桌告訴我她去過(guò)北京兩次了。 My partener told me she had been to Beijing trwice.1.Teddy rushed to the studio because he had got up late.2.Teddy drove back home because he had left his key to the office at home.3.Teddy had phoned the director before he arrived at the studio.4.Before Teddy appeared, his fan

12、s had waited outside the studio for two hours.5.Teddy arrived home at 1 a.m. when he had finished acting.Read and understand the following sntences.1._ you ever_(be) to Shanghai before you came here in 2003?2._ they _(do) their homework before they watched TV?3._ she _(go) to school already when her house was broken into this morning?4._ he _ (visit) the museum before it was torn down?5._ the film _ (start) when you arrived at the cinema?Fill in the blanks with the correct tense.HadbeenHaddoneHadgoneHadvisitedHadstarted