时间状语从句复习.pptx

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1、1什么是时间状语？表示行为发生的时间，一般由副词，介词短语或相当于副词的词组或短语来充当。For example:1.He is leaving for Shanghai2.I bought a computer 3.The school sports meeting will be held3.I get up 4.He doesnt go to schooltomorrow.2 days ago.the day after tomorrow.at 6 oclocktoday.every day.第1页/共33页2如果状语不是简单的“单词或短语”，而是句子呢？称为状语从句eg:I feel

2、very happy eg:I was sleeping.状语从句可位于主句之前，也可位于主句之后。when you come to see me.When he knocked at the door,第2页/共33页1、时间状语从句：引导时间状语从句的从属连词有：when,while,as,whenever,before,after,since,till,until,as soon as,once等引导。如：第3页/共33页选when？还是as比较像，选while吧！崩溃ING！第4页/共33页（1）when/while/asWhen 既可指某一时间点,也可指一段时间;表示主句与从句动作同

3、时或先后发生。译为“当时候”while指“在某一段时间里”，“在期间”，引导的动作必须是持续性的;强调主从句动作同时发生（可表对比）。as强调主句和从句的动作同时发生,可译为”一边一边”发生，或“随着”。第5页/共33页When he returned,his wife was cooking.While he was reading,his wife came in.As he was reading,he was listening to the radio.第6页/共33页while when 从句动词从句动词意义意义when延续性动延续性动词词，或，或短短暂性动词暂性动词同时同时发生，

4、或从发生，或从句的动作发生在句的动作发生在主句动作前后主句动作前后。While延续性动延续性动词词,同时发生同时发生，往往，往往侧重主句和从句侧重主句和从句动作的动作的对比对比第7页/共33页1.When 从句中的动词既可以是短暂从句中的动词既可以是短暂动词，也可以是延续动词。而动词，也可以是延续动词。而while从句中的动词只能从句中的动词只能是延续性动词。是延续性动词。He took a bath while I was watching TV.While he took a bath,I was watching TV.第8页/共33页while&when()1._ the teache

5、r came in,the students were talking and laughing.A.while B.since C.when D.the time()2.Sandy was operating on her patient _ Sammy was putting out fires.A.while B.by C.when D.before()3.I dont like Mike.He is lazy.He was always playing computer games _ her mother was working hard at their housework.A.a

6、s B.while C.until D.whenCAB第9页/共33页用when,while,as填空1._ I was walking down the street,I noticed a police car in front of the store.2._ John arrived,I was cooking lunch.3._ we were discussing problems,they rushed in.4._ I was playing computer games,father was cleaning the car.5._ he grew older,he lost

7、 interest in everything except gardening.6.Mary sang a song _ she washed.7.His brother is good at maths_ he does well in English.When/While/AsWhenAsWhileWhileaswhile第10页/共33页Translation1.当老师走进教室时，他们正在讲话When the teacher came into the classroom,they were speaking.2.我们正在吃晚餐，突然电话铃响了。We were having dinne

8、r when the telephone rang.3.随着时间的推移，天气越来越冷。As time goes by,it is becoming colder and colder.4.我在听音乐而他在读书。I am listening to music while he is reading.第11页/共33页BACKTOSCHOOL表“时间点时”用when表“对比”时 用while表“随着”，或“一边一边”用as注意第12页/共33页2.before 和和 after 引导的从句：引导的从句：before表示主句的动作发生在从句动作表示主句的动作发生在从句动作之前，之前，after表示主

9、句的动作发生在从句表示主句的动作发生在从句动作之后。动作之后。Before he played chess with his child,he had finished his work.After he had finished his work,he played chess with his child.第13页/共33页before It will be+一段时间+before从句(do/does)要过.才能做It will be three days before you can open the cover of the jar.It will not be+一段时间+before

10、从句 要不了 就能做It will not be ten years before we meet again.It was+一段时间+before从句(did)过了做了It was ten years before we did the experiment.It was not+一段时间+before从句(did)没过做了It was not long before we returned back.第14页/共33页翻译1.Each time I was in trouble,He could come to help me out.2.It will be half a year be

11、fore I came back.3.we had sailed four days and four nights before we saw land.4.Before I could get in a word,he had measured me.第15页/共33页“一一就就”1.As soon as I arrive in Shanghai,Ill write to you.介词短语 On arriving(leaving,returning)On arriving in Shanghai,Ill write to you.一到上海我就会写信给你。2.the+时间名词(minute/

12、moment)+句子I recognized him the moment I saw him.第16页/共33页我刚一到家，就下雨了。I had hardly got home when it began to rain.=Hardly had I got home when it began to rain.=I had no sooner got home than it began to rain.=No sooner had I got home than it began to rain.hardlywhenno soonerthan第17页/共33页until直到We waite

13、d until he came back.我们一直等到他回来。She didnt stop working until eleven oclock.她到11点钟才停止工作。It was not until you told me that I had any idea of it.（强调句）如主句动词是延续性动作，常用肯定式，表示“直到为止”;如主句动词是瞬间动词，常用否定式，表示“直到才”第18页/共33页not until 句型与强调句型结合（强调结构：it is/was+被强调+that+其他）I didnt go to sleep until he came back.与倒装句式结合I

14、t was not until he came back that I went to sleep.Not until he came back did I go to sleep.状第19页/共33页sincehave/has donesince did自从就已经做了某事eg:I have dreamed about becoming a doctor since I was a child.It is/has been+一段时间since 从句(did)自从以来有It is/has been 3 years since the war broke out.自从战争爆发已经有3年。第20页/

15、共33页过去进行时态定义：过去某个时间正在发生的动作He was cooking at six last night.过去某段时间正在发生的动作 I was staying here from March to May last year.第21页/共33页2.过去进行时的构成：主+waswere+Ving3.与过去进行时连用的时间状语，常见的有 at nine last night/at that time=then/at this time yesterday /或有when the teacher came in/while he was reading的提示第22页/共33页请比较：H

16、e watched TV last night.（过去时间last night,用一般过去时）He was watching TV at nine last night.(过去时间last night+点时间at nine,用过去进行时第23页/共33页过去完成时1.定义：过去完成时表示在过去某一时间的动作之前已经发生或完成了的动作，即“过去的过去（past-in-the-past）2.结构：主+had+过去分词They had already had breakfast before they arrived at the hotel.She had finished writing the

17、 composition by 10：00 this morning.第24页/共33页3.过去完成时的判断依据1.由时间状语来判定（1）by+过去的时间点如：I had finished reading the novel by nine oclock last night.（2）by the end of+过去的时间点We had learned over two thousand English words by the end of last term.（3）before+过去的时间点They had planted six hundred trees before last Wedn

18、esday.第25页/共33页2.由“过去的过去”来判定（1）宾语从句中 当宾语从句的主句为一般过去时，且从句的动作先于主句的动作时，从句要用过去完成时。在told,said,knew,heard,thought等动词后的宾语从句。如：She said that she had seen the film before.第26页/共33页（2）状语从句中在时间、条件、原因、方式等状语从句中，主、从句的动作发生有先后关系，动作在前的，要用过去完成时，动作在后的要用一般过去时。如：When I got to the station,the train hadalready left.After h

19、e had finished his homework,hewent to bed.第27页/共33页1.We _ TV when the telephone _.A.watched;was ringing B.were watching;rang C.watch;rings D.are watching;rang 2.By the end of last term,I_ ten books.A.had finished reading B.have finish reading C.had finish to read D.finish read第28页/共33页1.He _(watch)T

20、V at nine last night.2.What _the twins _(do)then?3._Lily _(draw)a cat when the teacher came in?-No,she _.4._you _(have)supper at that time?5.Jack _(not read)a book at nine yesterday evening.第29页/共33页6.We _(watch)TV when suddenly the telephone rang.7.We _(paint)the house before we _(move)in.8.The rob

21、bers _(run away)before the policemen _ (arrive).9.I _(turn off)all the lights before I _(go)to bed.10.She didnt go to Qingdao because she _(go)there before.第30页/共33页11.We found the key _ she had left it.12.We found the books two days _ he had gone away.13.She told me she _(be)to Sanya three times.14

22、.The Reads _ (have)lunch when I _(get)to their house.15.After we_(have)the exam,we went on a holiday.第31页/共33页16.We cooked the dumplings.We ate them up.（after）17.(before)He opened the front door.Then he showed us around the house.18.We talked.The teacher came in.(when)19.Alan walked along the street.Alan met Tony.(when)20.Father drove the car.Mother slept in the car.(While)第32页/共33页感谢您的观看！第33页/共33页