while时间状语从句课件.ppt

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1、Part 1 Review ：Past Continuous Tense,过去进行时,Sentence Pattern ： S + was / were doing （+ time expressions）.,Time Expressions: at 6:00 yesterday morning ; at that time; from 2:00 to 4:00 yesterday afternoon,Part 1 Review ：Past Continuous,What was he doing at 9:00 yesterday morning?,Lets practice,What wa

2、s he doing at 9:00 yest,yesterday morning,What happened?,yesterday morningWhat happened,What was the boy doing from 6:00 to 9:00 last night?,What was the boy doing from 6:,Lazy Goat was sleeping on the meadow.,Big big wolf and his wife came.,While Lazy goat was sleeping on the meadow, big big wolf a

3、nd his wife came.,While：during a period of time （conj.） 当的时候 （连词）,Lazy Goat was sleeping on the,Part 2 : While-clause in adverbial of time,while引导的时间状语从句,How to use,While sth was happening，sth happened. or While sb/sth was prep. /adv，sth happened.当某事情正在发生的时候，另一件事情发生了。当某人/事处于某种状态下，另一件事情发生了。（while从句为背

4、景动作,主句发生在从句过程之中）,2. While sth be happening, another one be happening. (be should change with the tense)当一件事情发生的时候，另一件事情也同时正在进行。（while从句可以和主句互换位置，两个动作正在同时发生）,Part 2 : While-clause in adver, While he was doing his homework，the bell rang.,subordinate clause：从句（背景）,rinciple clause：主句,Focus on situation

5、1：,（while从句为背景动作,主句发生在从句过程之中）, While he was doing his homew, While she was away，her friend helped me.,subordinate clause：从句（背景）,rinciple clause：主句,Tips: While 引导的句子为从句，表示事情发生的背景动作。 While从句中，出现实意动词时，表示一段时间，所以只能选择延续性 动词，用过去进行时 短暂性动词：瞬间发生就结束 eg：come，arrive，die etc. 延续性动词：动作发生后可以持续进行 eg：eat ，sing，live e

6、tc., While she was away，her frien,Lets find it，then put them in one sentence！,Which one is the While-clause?,Which one is the principle clause?,Eg: He was walking. A man stole his wallet.= While he was walking, a man stole his wallet. She fell down. She was climbing a ladder.= While she was climbing

7、 a ladder, she fell down. She was away. Her friend looked after her child.= While she was away, her friend looked after her child.,Lets find it，then put them in,Part 3: Lets learn,upset,a bad day,He burned himself while he was cooking.,A： You look upset.B： I had a bad day.A： Why？ What happened？B: I

8、burned myself while I was cooking.A: Im sorry to hear that.,Part 3: Lets learnupseta bad,A： You look .B： I had a day.A： Why？ What ？B: A dog me while I was .A: Im to hear that.,upset,bad,happened,bit,delivering the mail,sorry,A： You look . upset,A： You look .B： I had a day.A： Why？ What ？B: I myself w

9、hile I was my fence.A: Im to hear that.,upset,bad,happened,cut,fixing,sorry,A： You look . upset,Part 4：Lets say：oral time！,Talk about an unlucky/a lucky thing！,Here is a model: I was very upset yesterday. Because I had a very bad day. I lost my purse while I was shopping. I couldnt buy anything. I w

10、as really angry. What a bad day for me!,Part 4：Lets say：oral time！Tal,While he was reading，she was cooking.,Focus on situation 2：,（while从句可以和主句互换位置，表示两个动作同时发生）,While she was cooking，he was reading.,Tips: 两个动作同时发生，主从句调换位置，句意不变！主从句均选择进行 时，动词选择延续性动词！,While he was reading，she was, he - sleep she - do he

11、r homework,While he was sleeping，she was doing her homework., it - rain we - wait for the bus,While we were waiting for the bus，it was raining., I - walk he - run,While I was walking ，he was running.,Part 5：Lets write！, he - sleep she - do he,Part 6：Lets compare!,When & While(初步了解) 跟动词时，while后面只能跟延续性动词 - 进行时； when既可以跟延续性动词，也可跟短暂性动词- 进行时 、一般过去时都可以！Eg： While/When he was singing，the lights went out. 表示两个动作同时发生，用while更合适.Eg: While he was shopping, she was shopping. when除“当的时候”意义之外，还含有先后顺序可译为“一就”Eg: When I heard the news, I ran out of the room.,Part 6：Lets compare!When & Wh,