Unit3语法专项课件过去进行时与连词whenwhile鲁教版五四制八年级英语上册

教学课件鲁教（五四制）英语八年级上册Unit3语法专项——过去进行时与连词when,while

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学习目标1.掌握过去进行时的定义、结构与用法2.熟练运用动词-ing形式的变化规则3.区分过去进行时与一般过去时4.掌握连词when和while的用法区别5.能完成各类习题并正确运用语法知识

过去进行时——定义与语境1.核心定义：描述过去某时刻/时间段正在进行的动作2.强调动作进行中，不强调是否完成3.常用时间标志：at8:00lastnight，atthistimeyesterdaywhentherainstormcame，allmorningyesterday

过去进行时——肯定句结构1.基本结构：主语+was/were+动词-ing2.单数主语用was，复数主语用were

例句：Iwastakingashowerat8:00lastnight.Theywereplayingbasketballwhenitrained.过去进行时——否定句结构1.结构：主语+was/were+not+动词-ing2.缩写形式：wasn’t/weren’t

例句：Shewasn’tdoinghomeworkatthattime.Weweren’twatchingTVwhenyoucalled.过去进行时——一般疑问句1.结构：Was/Were+主语+动词-ing?2.肯定回答：Yes,主语+was/were.3.否定回答：No,主语+wasn’t/weren’t.

例句：—Wereyoureadingat9:00?—Yes,Iwas./No,Iwasn’t.过去进行时——特殊疑问句1.结构：疑问词+was/were+主语+动词-ing?2.常用疑问词：what,where,who

例句：Whatwereyoudoingatthetimeoftherainstorm?WhowashetalkingtowhenIsawhim?动词-ing变化规则

1.一般情况：直接加-ing，work→working，play→playing2.以不发音e结尾：去e加-ing，take→taking，write→writing3.以ie结尾：变ie为y加-ing，lie→lying，die→dying4.重读闭音节（辅+元+辅），双写尾字母加-ing

stop→stopping，run→running过去进行时vs一般过去时时态侧重点时间标志例句过去进行时过去正在进行at8:00,when...Iwasreadingat8:00.一般过去时过去已完成yesterday,lastweekIreadabookyesterday.连词when的用法（1）1.含义：当……时候2.句型：主句（过去进行时）+when+从句（一般过去时）3.逻辑：一个动作正在进行，另一个突然发生

例句：Hewasreadingwhentherainstormcame.连词when的用法（2）句型：When+从句（过去进行时）+主句（一般过去时）逻辑：一个动作进行中，另一个动作发生例句：WhenIwaswalkinghome,itbegantorain.句型：When+一般过去时+主句（一般过去时）逻辑：两个动作先后发生连词while的用法（1）含义：当……时候；与此同时句型：While+过去进行时+主句（过去进行时）逻辑：两个动作同时进行

例句：WhileLindawassleeping,Jennywasworking.连词while的用法（2）句型：While+过去进行时+主句（一般过去时）逻辑：一个动作进行中，另一个动作发生

例句：WhileIwasreading,mybrothercalledme.注意：while从句多用进行时when与while对比表连词从句时态主句时态核心逻辑when一般过去时过去进行时一动作发生，另一正在进行when过去进行时一般过去时一动作进行，另一发生while过去进行时过去进行时两个动作同时进行while过去进行时一般过去时一动作进行，另一发生单项选择

1.——Whatwereyoudoingat8:00lastnight?——I__________ashower.A.takeB.tookC.wastakingD.amtaking2.Whatwasshedoingwhenitrained?She__________herhomework.A.doB.didC.wasdoingD.isdoing3.He__________inthelibrarywhenthestormcame.A.readB.readsC.wasreadingD.isreading4.WhileI__________,mymomcooked.A.sleptB.wassleepingC.sleepD.amsleeping5.__________Iwasreading,hecamein.A.WhenB.WhileC.UntilD.IfCCCBB6.We__________TVwhenthepowerwentoff.A.watchedB.werewatchingC.watchD.arewatching7.What________you________atthistimeyesterday?A.do;doB.did;doC.were;doingD.are;doing8.She__________tomusicwhenIarrived.A.listenedB.waslisteningC.listensD.islistening9.__________hegothome,Iwascooking.A.WhenB.WhileC.BeforeD.After10.They__________footballat4:00yesterdayafternoon.A.playedB.wereplayingC.playD.areplayingBCBAB

11.Ithoughtyou__________gamesatthattime.A.playB.playedC.wereplayingD.areplaying12.WhileMary__________,Johnwasdrawing.A.readB.wasreadingC.readsD.isreading13.Whenthebellrang,we__________theclassroom.A.cleanedB.werecleaningC.cleanD.arecleaning14.Mybrother__________whileI__________.A.sang;dancedB.wassinging;wasdancingC.sings;dancesD.issinging;isdancing15.Thedriver__________fineaftertheaccident.A.wasB.wereC.isD.areCBBBA16.Iwasn’t__________TVatthattime.A.watchB.watchedC.watchingD.watches17.Wereyouwritingat9:00?Yes,I______.A.amB.wasC.wereD.did18.Shewasn’t__________clotheswhenyoucalled.A.washB.washedC.washingD.washes19.Whilewe__________,someoneknockedatthedoor.A.listenedB.werelisteningC.listenD.arelistening20.WhenI__________home,shewasreading.A.getB.gotC.amgettingD.willgetCBCBB句型转换1.Iwassleepingat10:00lastnight.（一般疑问句）________you________at10:00lastnight?2.HewasreadingwhenIcame.（否定句）He________________readingwhenIcame.3.Theywereplayingbasketballatthattime.（划线提问）________________they________atthattime?4.Iwasdoinghomework.Mymomcamein.（用when合并）_____________Iwasdoinghomework,mymomcamein.5.Shewascooking.IwaswatchingTV.（用while合并）Whileshewascooking,I________________TV.WeresleepingwasnotWhatweredoing

When/Whilewaswatching6.Hewasworkingat8:00.（划线提问）________________he________at8:00?7.Wereyouwritingaletter?（肯定回答）

Yes,________________.8.Theyweren’tplayingsoccer.（肯定句）They________________soccer.9.WhenIarrived,hewasdrawing.（同义句）Hewasdrawing________Iarrived.10.Whilehewaswalking,itsnowed.（同义句）________hewaswalking,itsnowed.WhatwasdoingIwaswereplayingwhenWhen用所给词的适当形式填空1.——What________you________(do)at7:00yesterday?——I______________(eat)dinner.2.She________________(notwatch)TVwhenyoucalled.3.Whilethey_______________(play),itbegantorain.4.WhenI________(get)home,mydad_________________(read).5.We______________(have)apartyatthistimelastweek.waseatingwasn’twatchingwereplayinggotwasreadingwerehavingweredoing情景对话补全A:Hi,Linda.1.__________________________（昨晚九点你在做什么？）