英语人教版八年级下册Unit5 SectionA(Grammar-4c).ppt

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1、Unit5 What were you doing when the rainstorm came?Section A(Grammar-4c)湖北省十堰市东风七中湖北省十堰市东风七中 谢晋谢晋Make sentences one by one with when/while.(句子接龙)Warming upMake conversations in pairs with the Past Progressive TenseCheck homework on-lineShe were doing housework when I was doing my homework.What were y

2、ou doing at this time yesterday?I was doing my homework.What were your mother doing while you were doing your homework?12345Watch a video：What happened?A disaster(灾难灾难)took place in America.There were tornados(龙龙卷卷风风)coming.Luckily,it was OK in China.What were the famous persons doing at that time?G

3、uessingHewasexercising.WhatwasLuHandoingatthetimeofthetornado?WhatwasshedoingwhileLuHanwasexercising?Shewasdrinkingwater.Shewasreadinginthelibrary.Whatwasshedoingwhenthetornadocame?He was running.WhatwasYaoMingdoingwhenthedisastercame?Whatweretheydoingatthetimeofthetornado?Theywerecookingathome.1234

4、5探究一探究一 Review the Past progressive tense 过去进行时过去进行时过去某时刻或某时段过去某时刻或某时段正在发生的动作正在发生的动作at 8 yesterday,at that time,from 6 to 9 p.m.,when/while 时间状状语从句从句am/is/are1.1.含义：含义：过去进行时表示过去进行时表示 。2.2.时间状语：时间状语：。3.3.基本结构：基本结构：现在进行时：现在进行时：+动词动词-ing 过去进行时：过去进行时：+动词动词-ing was/were4.4.句型句型1)1)肯定句肯定句:主主语语+动词动词-ing形式形

5、式He(watch)TVatninelastnight.Myparents(cook)atthattime.2)2)否定句否定句:主主语语+动词动词-ing形式形式I(notplay)basketballwhenitbegantorain.was/werewas watchingwere cookingwas/were notwasnt playing3)一一般般疑疑问问句句:+主主语语+动动词词-ing形形式式+？肯定回答肯定回答:Yes,主主语语+.否定回答否定回答:No,主主语语+.you(have)supperatthetimeoftherainstorm?No,I.4)特殊疑特殊疑问

6、问句：句：疑疑问词问词+主主语语+动词动词-ing形式？形式？Whatthetwins(do)then?Was/Werewas/werewasnt/werentWere havingwasntwas/wereweredoingchant过去进行最好记，过去进行最好记，was/were后加加doing；动作发生在过去，时间状语别忘记；动作发生在过去，时间状语别忘记；肯定主语位句首，一般问句提前肯定主语位句首，一般问句提前be;否定句式更简单，否定句式更简单，be后仅把后仅把not添。添。2345观察以下两察以下两组短短语并得出并得出结论1.wait for the bus，play the pi

7、ano，clean the room,go e in,arrive here,leave the house,turn on the radio 第第一一组组为为 （能能/不不能能）持持续续发发生生的的动动作作，叫叫延延续续性性动动作。作。第第二二组组为为 （能能/不不能能）持持续续发发生生的的动动作作，叫叫非延非延续续性性动动作，也叫瞬作，也叫瞬间动间动作。作。探究二探究二 观察并探察并探讨when/while的用法的用法.能能不能不能观察以下四察以下四组句子并得出句子并得出结论1.1).When I first met Jim two years ago,he was working in

8、 the supermarket.2).We were having dinner when the phone rang.3).We were talking when the teacher came in.4).When the teacher came in,we were talking.主句为延续性动作，从句中的主句为延续性动作，从句中的 动作动作时态为时态为 ，只能由，只能由 引导。引导。从句若在主句之前，用逗号隔开。从句若在主句之前，用逗号隔开。瞬间瞬间when一般过去时一般过去时2.1).I was doing my homework while my parents wer

9、e cooking.2).We were singing while they were dancing.3).While they were dancing,we were singing.主句为延续性动作，从句中的主句为延续性动作，从句中的 动作动作时态为时态为 ，只能由，只能由 引导。引导。从句若在主句之前，用逗号隔开。从句若在主句之前，用逗号隔开。延续性延续性while过去进行时过去进行时3.When we arrived at the restaurant,we saw that it was closed.主句主句为为瞬瞬间动间动作，从句中的作，从句中的 动动作作时态为时态为 ，只

10、能由，只能由 引引导导。从句若在主句之前，用逗号隔开。从句若在主句之前，用逗号隔开。瞬间瞬间when一般过去时一般过去时4.1).While we were talking,the teacher came in.2).The teacher came in,while we were talking.3).I met my friend Jim when I was walking in the street.4).When I was walking in the street,I met my friend Jim.主句主句为为瞬瞬间动间动作作时时，从句中的，从句中的 动动作作既可以由既

11、可以由 引引导导，也可有由，也可有由 引引导导。从句若在主句之前，用逗号隔开。从句若在主句之前，用逗号隔开。延续性延续性whilewhenWhen/while 小小结当一个为瞬间动作，一个为延续性动作时，当一个为瞬间动作，一个为延续性动作时，瞬间动作只能由瞬间动作只能由 引导，引导，延续性动作延续性动作 和和 都可以引导。都可以引导。当两个都是延续性动作时，当两个都是延续性动作时，只能由只能由 来引导。来引导。whilewhenwhilewhen345Remember what you hear in the videoMicro-class1.John was playing the pia

12、no,Mary left the house.2.John was playing the piano Mary left the house.3.While John (打扫打扫)his room,Mary turned on the radio.=John was cleaning his room Mary turned on the radio.4.我在吃早我在吃早饭饭的的时时候，我候，我妈妈妈妈正在听收音机。正在听收音机。While/Whenwhenwas cleaningExercisewhenWhile I was eating my breakfast,my mother wa

13、s listening to the radio.5674连词成句连词成句主主语1延延续动作作3瞬瞬间动作作6延延续动作作4瞬瞬间动作作5 主主语2地点地点7地点地点8PracticePractice:Write and ConnectWrite and Connect连词成句主主语1延延续动作作3瞬瞬间动作作6延延续动作作4瞬瞬间动作作5 主主语2地点地点7地点地点8567CompetitionCompetitionFour students draw(抽出)cards and act out at the same time.The other students make sentence

14、s.The more,the better.你演我来猜 What were they doing?What were they doing?76Which group can get the tressure?1.The usage of past1.The usage of past progressive tense progressive tense2.2.when and whileSummaryHomework1.Finish 4b.2.Tell your friend about a story happened in the past with when and while like 4b.