Unit5SectionAGrammarFocus-4c课件-人教版英语八年级下册

Unit5Whatwereyoudoingwhentherainstormcame?SectionAGF-4c起初首先等待atthetimeof洗个热水澡醒来步行回家diedownSpeakoutthephrases!接电话fallasleep发出响声GrammarFocusTranslatethesesentencesandlet’sread.昨天晚上八点你在做什么?暴风雨来临时,他正在做什么?当开始下大雨时，本在做什么?我正在洗澡。当暴风雨来的时候，他正在图书馆里看书。开始下雨时，本正在帮他的妈妈做晚饭。琳达睡觉时，珍妮在做什么?琳达睡觉时，珍妮正在帮玛丽做家庭作业。暴风雨来临时,她正在做什么?她正在做她的家庭作业。Languagepoints过去进行时PastProgressiveTense过去某一时刻正在进行的动作昨天八点他们正在打篮球。Theywereplayingbasketballat8:00yesterday.过去一段时间正在进行的动作她昨天从八点到十点一直在做作业。Shewasdoinghomeworkfrom8:00to10:00yesterday.过去进行时表示在过去某一时刻或某一段时间正在进行的动作。其基本结构为“was/were+v.-ing”Languagepoints过去进行时PastProgressiveTenseLanguagepointsSummarizethesentencestructureforPastProgressiveTense.肯定句主语+was/were+v.-ing+其他.特殊疑问句特殊疑问词+was/were+主语+v.-ing+其他?LanguagepointsSummarizethesentencestructureforPastProgressiveTense.我昨天晚上九点没在看电视。Iwasn’twatchingTVatnineo’clocklastnight.否定句主语+was/were+not+v.-ing+其他.他们那时候没在工作。Theyweren’tworkingatthattime.LanguagepointsSummarizethesentencestructureforPastProgressiveTense.一般疑问句Was/Were+主语+v.-ing+其他?肯定回答:Yes,主语+was/were.否定回答:No,主语+wasn’t/weren’t.那时候你在打篮球吗？是的，我在打。/不，我不在打。Wereyouplayingbasketballthen? Yes,Iwas./No,Iwasn’t.他们昨天4点在写作业吗？是的，他们在写。/不，他们不在写。Weretheydoingtheirhomeworkatfouryesterday?Yes,theywere./No,theyweren’t.肯定句主语+was/were+

v.-ing+

其他.否定句主语+wasn’t/weren’t

+v.-ing

+其他.一般疑问句Was/Were

+主语+v.-ing

+其他？肯定回答Yes,主语+was/were.否定回答No,主语+wasn’t/weren’t.特殊疑问句特殊疑问词+was/were+主语+v.-ing+其他?LanguagepointsThesentencestructureforPastProgressiveTense.口诀规则直1.一般情况下，直接在动词后加-ing。去2.动词以不发音的-e结尾，要去-e加-ing。双3.重读闭音节的动词，要双写词尾字母，再加-ing。变4.

以-ie结尾的动词，把ie变成y再加-ing。动词ing（现在分词）的构成规则do--_____doingread--______readingsing--______singinghave--_____havingwrite--_____writinguse--_____usingrun--________runningswim--_________swimminglie--_____lyingdie--_____dying重读闭音节三要素：1.必须是重读音节；2.最后只有一个辅音字母；3.元音字母发短元音。shop--_________shoppingcut--________cuttingLanguagepointsLanguagepointsMakersforPastProgressiveTense.1.过去时间点at+过去时间点/过去时刻at8:00lastnight;at3o’clockyesterdayafternoon;atthistimeyesterday;atthattime/moment;then...2.过去时间段from...to...+过去时间;atthetimeof…;thosedays,thewholeday/night,alldayyesterday,yesterdaymorning,lastSundayafternoon3.when/while引导的时间状语从句LanguagepointsMakersforPastProgressiveTense.现在进行时、一般过去时和过去进行时区别现在进行时一般过去时过去进行时用法现在/最近正在发生的动作。过去某个时间发生过的动作/存在的状态。强调动作已结束/结果过去某一时刻或某一时间正在发生的动作。强调过程、持续、未完成。构成am/is/are+v.-ingv.-edwas/were+v-ing时间now(或引起注意的look/listen等动词);

etc.yesterday;lastnight;twoyearsago;etc.ateightlastnight,atthetimeoftherainstorm;whentherainstormcame;whilehewassleeping;etc.LanguagepointsLanguagepointswhen/while(当…时候)引导的时间状语从句我们到达时正下着大雨。Itwasrainingheavilywhenwearrived.(arrive为瞬间性动词,从句要用when,不用while)当他正在读书的时候，电话铃响了。While/Whenhewasreading,thetelephonerang.(read为延续性动词,用while和when均可)当他们到达车站的时候，火车已经离开了。Whentheyarrivedatthestation,thetrainhadleft.(left发生在arrived之前,从句只能用when)当我们说话的时候，老师进来了。While/Whenweweretalking,theteachercamein.(talking和came同时发生,用while和when均可)Languagepointswhen/while(当…时候)引导的时间状语从句相同点不同点1（从句的谓语动词）不同点2（主句从句里的动作）when当...时侯引导时间状语从句延续性动词瞬间性动词同时发生一前一后while延续性动词同时发生Languagepointswhen/while(当…时候)引导的时间状语从句VS延续性动词瞬间性动词能够持续一段时间的动作eg:study,work,read...动作发生后立即结束eg:open,arrive,come...

Languagepointswhen/while(当…时候)引导的时间状语从句从句位于主句之前或之后，当位于主句之前时，与主句要用逗号分开。Languagepointswhen/while(当…时候)引导的时间状语从句我6岁时开始学习弹钢琴。

IstartedtolearntoplaythepianowhenIwassix.当他们长大时，他们将不得不做家务。Whentheygetolder,theywillhavetodohousework.(主将从现)when可以用于表示过去/将来的年龄或一段时间,while不可以。Languagepointswhen/while(当…时候)引导的时间状语从句当我妈妈在做饭的时候，我在看电视。IwaswatchingTVwhilemymomwascooking.昨天晚上8点我在读书，我妹妹在睡觉。

Iwasreadingwhilemysisterwassleepingateightyesterday.while表示主从句中两个延续性动作同时进行，when不可以。4a.Lookatthetableandwritesentenceswithbothwhileandwhen.JohnMarytakephotosbuyadrinkplaythepianoleavethehousecleanhisroomturnontheradioshoptakethecartothecarwashWhileJohnwastakingphotos,Maryboughtadrink.JohnwastakingphotoswhenMaryboughtadrink.洗车延续性瞬间性WhileJohnwasplayingthepiano,Maryleftthehouse.

JohnwasplayingthepianowhenMaryleftthehouse.WhileJohnwascleaninghisroom,Maryturnedontheradio.

JohnwascleaninghisroomwhenMaryturnedontheradio.WhileJohnwasshopping,Marytookthecartothecarwash.

JohnwasshoppingwhenMarytookthecartothecarwash.At7:00a.m.,Iwokeup.______I_____makingmybreakfast,mybrother_____listeningtotheradio.______Iwaseating,theradionewstalkedaboutacaraccidentnearourhome.MybrotherandIwentoutrightawaytohavealook.______wegottotheplaceoftheaccident,thecar_____inbadshapefromhittingatree.Butluckily,thedriver_____fine.Theroads______icybecauseoftheheavysnowfromthenightbefore.WhilewaswasWhileWhenwaswaswereadj.覆盖着冰的；冰冷的icen.冰看一看4b.Fillintheblankswithwas,we