人教版八年级英语下册unit5教案.doc

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Unit5Whatwereyoudoingwhentherainstormcame?单元备课AnalysisofTeachingMaterial　本单元的话题是难忘的事件，通过学习学生学会谈论过去发生的事情、学会讲故事。能正确使用连词when和while，能恰当运用过去进行时结构进行提问和叙述。如何使用过去进行时，使用when、while引导的时间状语从句和进一步熟悉一般过去时和过去进行时的搭配使用是本单元的重点内容。本单元难点是体会while和when在引导时间状语从句时用法上的区别和用一般过去时和过去进行时描述事件。 Analysisofthestudents八年级学生“两极分化”现象较为严重，优生和中等生数量少，部分学生有厌学情绪。学习任务加重，学习习惯不是很好，没有形成一定的适合自己的方法，都有待改善.Teachingaims1语言目标：能运用过去时态描写过去发生的事情2技能目标：能听懂有关过去发生事件，能简单描写过去发生的事件 3情感目标：让学生知道在灾害面前要更团结，友善，互相帮助Teachingfocus1.掌握以下单词：alarm.storm,wind,light,area,wood,window,match,passage,pupil,silence,date,tower,truth,report,realize,strange,asleep,fallen,icy,heavily,suddenly,completely,recently,against2.掌握以下表达：gooff，pickup,fallasleep,diedown,makeone’sway,insilence,takedown...3.语法和时态：过去进行时、when和while引导的时间状语从句。Teachingdifficulty(1）能在没有具体时间状语的情况下，理解和正确运用过去进行时。(2）能弄清when和while的区别(3)能正确运用一般过去时和过去进行时在作文描述事件。Teachingmethod采用直观教学法，遵循以学生为主体的原则。 Learningmethod采用独立思考与小组合作与交流相结合的方法，在老师的引领下相对独立地学习知识，培养能力。 TeachingaidsAtaperecorder，multimediaTeachingtimesThefirstperiodSectionA1(1a-2d)ThesecondperiodSectionA2(3a-3c)ThethirdperiodSectionA3(GrammarFocus-4c)ThefourthperiodSectionB1(1a-2e)ThefifthperiodSectionB2(3a-selfcheck) ThefirstperiodSection A 1a-2dTeachingaims一、知识与技能 1.掌握重点词汇和句型:What were you / was he (she) doing when…? I / He / She was doing…when…. 2. 初步掌握使用过去进行时来询问或描述过去进行的事情，并学会用when描述某动作或某事件的发生。 3. 能在交际过程中较流利地运用所学结构和句型。 4. 提高抓取和记录关键信息的听力技能。 二、过程与方法 采用目标和直观教学法，调动学生的积极性，引导他们积极参与课堂。  三、情感态度与价值观 让学生爱上英语课堂活动，鼓励他们在课堂上进行合作交流。 Teachingfocus1. 掌握过去进行时态：“was / were + doing”结构。 2. 掌握when 引导的时间状语从句。 Teachingdifficulty掌握由when引导的时间状语从句以及如何使用过去进行时。 Teachingmethod任务型教学法，情景教学法，交际教学法。 Learningmethod模仿，讨论与交流。 Teachingaids图片，多媒体。  TeachingstepsStep1WarmingupYesterday,therewasarainstorm.Whereweretheywhentherainstormcame?Herearesomereports.Forexample:A:Wherewereyouwhentherainstormcame?B:Iwasinthelibrary.A:Whatwereyoudoingwhentherainstormcame?B:Iwaswaitingforthebusatthebusstop.1aWherewerethepeopleatthetimeoftherainstorm?Matchthestatements.Step2Listening1b：Whatweretheydoingwhentherainstormcame?Let’slisten.Payattentionto“was/were+doing”.ListentotheTVreportandcirclethecorrectresponse.Step3Speaking1cLookatthepicturesandanswerthequestionsbyusing“was/were+doing”eg:A:Whatwastheboydoingatthetimeoftherainstorm?B:He_______.Pairwork:1cTalkaboutwhatthepeoplein1aweredoingatthetimeoftherainstorm Step4Listening2aListenandnumberthepictures1-5.2bListenagain.Fillintheblanksinthesentencesin2a.Step5Speaking2cUsetheinformationin2atoretellthestoryinaconversationbetweentheboyandaTVreporter.2dRoleplaytheconversation.Step6Languagepoints1.Myalarmdidn’tgooffsoIwokeuplate.alarmn.闹钟gooff发出响声e.g.WhattimeshallIsetthealarmfor?我该把闹钟拨到几点钟响？2.Iwaswaitingforthebuswhenitbegantorainheavily.1)beginv.(began)开始e.g.I’llbeginwheneveryou’reready.一般来说，begintodo和begindoing可以互换，但在以下三种情况下，用todo。I.主语不是指人，而是it等。如：Itbegantorain.II.begin+心理活动的词。如：begintoknow/believe/wonder/think/realize等词。III.begin本身是ing形式，为避免重复后接todo。即：beginningtodo2)heavilyadv.在很大程度上；大量地e.g.movingheavily吃力地移动Itwasrainingheavily.雨下得很大。(此时heavily相当于hard)3.So,whentherainstormsuddenlycame,…suddenlyadv.突然；忽然e.g.IsuddenlyrememberedthatIhadn’tlockedthedoor.我忽然想起没有锁门。4.That’sstrange.strangeadj.奇怪的；不可思议的strangern.陌生人5.Icalledatsevenandyoudidn’tpickup.pickup(=pickupthephone)接电话pickup还有以下含义：1)拾起；捡起  e.g.Pick them up.  把它们捡起来。The kids picked up many sea shells at the seashore.  孩子们在海边捡到许多贝壳。    2)（开车）接某人  e.g.The car stopped to pick me up.  汽车停下来接我。Step7SpeakingMakeasurvey.Askyourpartnersinyourgroupwhattheyweredoingatthefollowingtime.Fillintheformthengiveareport.TimeNamesdoingYesterday7:00TomreadingPetershoppingYesterday8:00TomwalkingPeter… Yesterday9:00……Report:Tomwasreading.Peterwasshopping…A:Whatwereyoudoingyesterdayat7:00?B:Iwasreading.Step8Summary1.在图书馆inthelibrary2.在的时候atthetimeof3.去上班gotowork4.等公共汽车waitforthebus5.走路回家walkhome6.在街上onthestreet7.打篮球playbasketball8.弹钢琴playthepianoStep9Exercise根据上下文内容填空。（2dRole-play巩固）Mary:What______youdoinglastnight?Icalledatsevenandyoudidn’tpick____.Linda:Oh,Iwasinthekitchenhelpingmymom.Mary:Isee.Icalled_____at8andyoudidn’t_______theneither.Linda:WhatwasIdoingat8?Oh,Iknow.Whenyoucalled,Iwas______ashower.Mary:ButthenIcalledagainat9.Linda:Oh,I_____sleepingatthattime.Mary:Soearly?That’sstrange.Linda:Yeah,Iwastired.Why_____youcallsomanytimes?Mary:Ineededhelpwithmyhomework.Sowhileyouwere________,IcalledJennyandshehelpedme.BlackboardDesignUnit5Whatwereyoudoingwhentherainstormcame?ThefirstperiodSection A 1a-2dWhat were you / was he (she) doing when…? I / He / She was doing…when…. Teachingintrospection Thesecondperiod SectionA2(3a-3c)Teachingaims 一、知识与技能 1. 掌握重点词汇和短语。 2. 培养学生的阅读能力及技巧。 3. 复习、运用过去进行时。二、过程与方法 采用目标和直观教学法，调动学生的积极性，引导他们积极参与课堂。  三、情感态度与价值观 培养学生在灾害面前要更团结，更友善，更懂得互相帮助。Teachingfocus1. 掌握重点词汇和短语。 2. 复习、运用过去进行时。 Teachingdifficulty1. 培养学生的阅读能力及技巧。 2. when和while的区别。 Teachingmethod 教师引导，学生自主探究，小组合作。 Learningmethod自主探究与小组合作相结合。 Teachingaids图片，多媒体。 TeachingstepsStep1Revision1.Askstudentstotalkaboutwhattheyweredoinglastnightingroupsoffourthengiveareport.2.复习短语在……的时候atthetimeof走路回家walkhomeStep2Presentation（3a）Askthestudentstolookatthepictureandthinkaboutwhathashappened.Step3Reading3aReadthepassagequicklyandanswerthequestions1)Whatwastheweatherlikebeforetheheavyranstarted?2）Whatwastheneighborhoodlikeafterthestorm?Keys:1.Blackcloudsweremakingtheskyverydark.Withnolightoutside,itfeltlikemidnight.2.Theneighborhoodwasinamess.3bReadthepassageagainandcompletethesentences.Keys:1)wereblowing2)wasputtingpiecesofwoodoverthewindows3)washelpinghismommakedinner4)fellasleep:wasdyingdownStep4Speaking3cDiscussthequestions.KunMingstationevents Step5Languagepoints1.Withnolightoutside,itfeltlikemidnight.此句中介词with表示一种伴随状况，同时还包含着某种因果关系，表示“因某种状况的存在而导致……”,因此可翻译成“由于；因为”等。e.g.Withmyparentsaway,I’mthekingofthehouse.我爸妈不在家，可是家中的“王”了！Ican’tworkwithallthatnoisegoingon.由于那噪音响着，我无法工作。2.Ben’sdad…whilehismomwasmakingsuretheflashlightsandradiowereworking.1)此句中的连词while的意思是“当……的时候；和……同时”，while还可以表示“而；然而；但”之意。e.g.TomisactiveandoutgoingwhilehissisterRosaisshyandquiet.汤姆活跃外向，而他的妹妹罗莎却害羞腼腆。2)makesure“确认，查明，核实；确保；设法保证”，其后可接句子，或接介词of及宾语，用来引入需要确认的内容。e.g.Couldyoumakesurewhattimehe’sarriving?你能确认一下他几点到达吗？MakesureyouturnofftheTVbeforeyouleavethehouse.在你离开屋子前确认关闭了电视。3)此句中的work表示机器，器官等“运作，运转,奏效”e.g.Mywatchiswaterproof—thatmeansitwouldworkfineevenifit’sinwater.我的手表是防水的—这就是说即便在水里它也会正常运转。3.Itwashardtohavefunwithaseriousstormhappeningoutside.Itisadj.forsb.todosth.对某人来说做……怎么样。e.g.ItisimportantforustolearnEnglish.对我们来说学英语很重要。练习：1.在街上踢球很危险。Itis____________socceronthestreet.2.早上读书对你来说很有必要。Itis________foryou_______inthemorning.3.对他来说完成作业很容易Itis____forhim__________________.4.Hefinallyfellasleepwhenthewindwasdyingdownataround3:00a.m.fallasleep进入梦乡，睡着asleepadj.睡着区别：sleepy&asleep&sleep&sleepingsleepy是形容词，可意为“困倦的；瞌睡的”，可作定语和表语。如：I’llgotobed.I’msleepy.我要去睡觉了。我困了。asleep是形容词，意思是“睡着的”，强调状态，常作表语。fallasleep意为“入睡；睡着”。如：GrandmafellasleepwhenwatchingTV.奶奶看电视时睡着了。sleep可作动词，意为“睡觉”，也可作名词，意为“睡眠；睡觉”。如：Myfatherissleeping.Pleasekeepquiet.我父亲在睡觉，请保持安静。 sleepingadj.睡着的；供睡觉的~beauty睡美人~bag睡袋~pills安眠药diedown逐渐变弱，逐渐平息e.g.Whenyousawhim,hisangerhaddieddownabit.你看见他的时候，他的火气已经下去了。5.Whenhewokeup,thesunwasrising.rise是不及物动词，意为：（价格、水位等）上涨；（月亮、太阳等）上升。e.g.Itistoohot.Thetemperaturerisesby6℃today.太热了。今天的气温一下子上升了6摄氏度。Step6重点短语feellikeatfirstfallasleepdiedownmakesurewakeupinamesscleanuphelpeachotherintimesofdifficultyHomeworkReadthetextandrememberthelanguagepoints.Previewnextlesson.BlackboardDesignThesecondperiodSectionA2(3a-3c)Whenhewokeup,thesunwasrising.feellikefallasleepsleepydiedownmakesurewakeupTeachingintrospection ThethirdperiodSectionA3(Grammarfocus-4c)Teachingaims 一、知识与技能 1. 掌握重点词汇和短语。 2. 培养学生的阅读能力及技巧。 3. 复习、运用过去进行时。三、情感态度与价值观 培养学生在灾害面前要更团结，更友善，更懂得互相帮助。 Teachingfocus1. 掌握重点词汇和短语。 2. 复习、运用过去进行时。 Teachingdifficult1. 培养学生的阅读能力及技巧。 2. when和while的区别。 Teachingmethod教师引导，学生自主探究，小组合作。 Learningmethod自主探究与小组合作相结合。 Teachingaids 多媒体。 TeachingstepsStep1RevisionLookatthepicturesandmakeupthesentences.Step2GrammarFocus读下列句子，能否总结出句子中包含的语法？1.Whatwereyoudoingateightlastnight?Iwastakingashower.2.Whatwasshedoingatthetimeoftherainstorm?Shewasdoingherhomework.3.Whatwashedoingwhentherainstormcame?Hewasreadinginthelibrarywhentherainstormcame.4.WhatwasBendoingwhenitbegantorainheavily?Whenitbegantorain,Benwashelpinghismommakedinner.5.WhatwasJennydoingwhileLindawassleeping?WhileLindawassleeping,JennywashelpingMarywithherhomework.Step3语法：过去进行时1.概念：过去进行时表示在过去某一时刻或一段时间内正在进行的动作.这一特定的过去时间除有上下文暗示以外,一般用时间状语来表示。2.结构was/were(not)+动词-ing3.句式肯定式：I/He/She/Itwasworking.We/You/They/wereworking. 否定式:I/He/She/Itwasnotworking.We/You/They/werenotworking.疑问式和简略回答:WasIworking?Yes,youwere.No,youwerenot.Wereyouworking?Yes,Iwas.No,Iwasnot.Washe/she/itworking?Yes,he/she/itwas.No,he/she/itwasnot.Werewe/you/theyworking?Yes,you/we/theywere.No,you/theywerenot.注：1)wasnot常缩略为wasn’t;werenot常缩略为weren’t.2)一般过去时与过去进行时用法的比较:一般过去时表示在过去某个时间发生过的动作或存在的状态,而过去进行时则表示在过去某一时刻或某一段时间正在进行的动作。例如:Davidwrotealettertohisfriendlastnight.大卫昨晚给他的朋友写了封信。(信写完了。)Davidwaswritingalettertohisfriendlastnight.大卫昨晚一直在给他的朋友写信。(信不一定写完。昨晚那个时候正在写)Practice:Lookatthepictureandmakeupthedialogues.Step4过去进行时中的when和whilewhen和while都可表示“当……的时候”，引导时间状语从句。你知道两者在过去进行时中的用法有什么不同吗？请仔细观察下面的例句，然后补全空格中的内容。①IwaswalkingtoschoolwhenIsawacatinatree.（划线部分为从句）②WhenSallyarrivedhome,hermotherwascleaningthehouse.主句的动作是持续性的，而从句动作是短暂性的，此时用_______引导时间状语从句，主句用_____________时态，从句用一般过去时态。③WhileIwassleepinginthebedroom,someoneknockedatthedoor.④Davidfellwhilehewasridinghisbike.主句的动作是短暂性的，从句的动作是持续性的，此时用_________引导从句，主句用____________时态，从句用过去进行时态。⑤WhileAndywaswaitingforthebus,hewasreadinganewspaper.⑥HewascleaninghiscarwhileIwascooking.主句和从句的动作在过去的某时刻或某段时间同时发生，而且动作都是持续性的，此时用_________引导从句，而且主句和从句都用_____________时态。Practice:汉译英。Step5活学活用4a.Lookatthetableandwritesentenceswithbothwhileandwhen.JohnMarytakephotosbuyadrinkplaythepianoleavethehouse cleanhisroomturnontheradioshoptakethecartothecarwash4b.Fillintheblankswithwas,were,whenorwhile.At7:00a.m.,Iwokeup._____I____makingmybreakfast,mybrother______listeningtotheradio.________Iwaseating,theradionewstalkedaboutacaraccidentnearourhome.MybrotherandIwentoutrightawaytohavealook._____wegottotheplaceoftheaccident,thecar_____inbadshapefromhittingatree.Butluckilythedriver____fine.Theroads______icybecauseoftheheavysnowfromthenightbefore.Step6Speaking4c.WhatwereyoudoingatthesetimeslastSunday?Fillinthechart.Thenchecktheanswers.Step7ExercisesI.根据汉语意思完成下列英语句子，每空一词。1.昨天下午五点钟你哥哥在做什么？What________yourbrother________atfiveyesterdayafternoon?2.昨天我回到家时，我妈妈在洗衣服。Mymother____________clothes________I________homeyesterday. 3.你做作业时，你妹妹在干什么？What______yoursister__________you____________yourhomework.Ⅱ.根据各题后括号内的要求完成下列各题，每空一词（含缩略形式）。1.Iwasrunningintheparkat7:00yesterdaymorning. (改为一般疑问句并作肯定回答)2.IwasflyingkiteswithmyfriendsatthistimelastSunday. (对划线部分提问)3.Theywereplayingbasketballfromthreetofouryesterday.  (改为否定句)Step8HomeworkAfterclass,pleasemakesomedialogueswiththephrasesandsentencesin4c.BlackboardDesignThethirdperiodSection B 1a-2e1. What is the common problem for Chinese and American families? 2. Who gives their opinions about the problems?  TeachingintrospectionThefourthperiodSectionB1(1a-2e)Teachingaims一、知识与技能 1. 掌握重点词汇和短语。 2. 通过听力训练来掌握提高学生们综合听说能力。 3. 通过阅读训练来让学生们逐步提高英语阅读能力。 二、过程与方法: 上网查阅相关资料，反复听力，操练对话。  三、情感态度与价值观 能用一般过去时和过去进行时叙述过去的事，特别是重大突发事件。Teachingfocus通过阅读训练来让学生们逐步提高英语阅读能力。 Teachingdifficulty阅读训练，来培养学生们的综合阅读能力。 Teachingmethod听、说、读、写四项基本技能相结合。引导学生进行泛读和精读。 Learningmethod通过多种形式的运用，培养各种能力。 Teachingaid图片，多媒体。 TeachingstepsStep1Presentation1aThinkofatimewhenyouwerelatefororcouldn’tgotoanevent.whatwastheevent?Whatwasthereasonwhyyouwerelateorcouldn’tgo?Tellyourpartnerthestory.Step2ListeningWhathappenedtothegirl?Let’slisten.1b.Listenandwriteshortanswerstothequestions.1cListenagain.Numbertheevents1-6intheordertheyhappened.Step3Speakingnote:makingherwaytoschoolStep4Presentation2a.Lookatthepicturesandthetitleinthepassage.Whatdoyouthinkthepassageisabout?阅读指导：ReadthetitleandfirstSentences.Step5Reading2b.Readthepassageandanswerthequestions.1.Whatarethetwoeventsinthepassage?2.Whendidtheyhappen?2c.Readthepassageagain.Arethestatementstrue(T)orfalse(F),oristheinformationnotgiven(NG)?2d.Underlinesentencesfromthepassagewithsimilarmeaningstotheonesbelow.Step6Languagepoints 1.passagen.章节，段落passage作“(文章的)段落”解时,不限于文章的一个自然段,也可以由若干句话或若干个paragraphs组成。passage也可作“一段,一节”解,一般指讲话、文章或乐曲的一部分。e.g.Theteacherspentanhourinexplainingthispassage.老师用了一小时来讲解这一段。Choosethecorrectorderofthefollowingsentencestoformapassage.把下列句子排好顺序组成一篇短文。2.Myparentswerecompletelyshocked!completelyadv.彻底地,完全地e.g.Iunderstandcompletely.我完全明白。shockedadj.惊愕的；受震惊的e.g.Shewassoshockedthatshecouldhardlysayaword.她如此震惊以致于几乎一句话也说不出来。[即学即练]翻译下列句子。1)看到邻居那样对待孩子我很惊愕。2)他对她抽烟感到很震惊。3.Myparentsdidnottalkafterthat,andwefinishedtherestofourdinnerinsilence.insilence沉默，无声withoutspeakingormakingasounde.g.Manypatientswerewaitinginsilence.许多病人在静静地等候着。Ahundredandfiftyreporterssatinsilence.在场的150名记者静静地坐在那里。相当于silently.类似于insurprise吃惊地4.Ididn’tbelievehimatfirst.atfirst“起初，首先”，作为介词短语，只起副词作用（在句中用作状语）。atfirst主要用于强调前后对照，暗示接下去的动作与前面的动作不同甚至相反，暗指后来的情况有变化，因此常有but,afterwards,soon,atlast等相呼应。e.g.Atfirstweusedhandtools.首先我们使用手工工具。AtfirstIdidn’twanttogo,butsoonIchangedmymind.我开始不想去，但我很快就改变了主意。Step7Speaking2e.Howmuchdoyourememberabouttheeventsinthepassage?Testyourpartner.A:WhendidDr.MartinLutherKingdie?B:Hediedon…Step8Summary1.在历史上inhistory2.默默地insilence3.首先atfirst4.讲实话tellthetruth5.做......感到吃惊beshockedtodosth.6.做某事有麻烦havetroubledoingsth.7.如此......以致so…thatStep9Homework1.Rememberthewordsandphrasesinthislesson.2.Finishtheexercisesintheworkbook.Teachingintrospection ThefifthperiodSectionB2(3a–Selfcheck)Teachingaims一、知识与技能 1. 复习本单元所学重点词汇、短语和句型。 2. 能熟练运用过去进行时描述过去的事。 3. 培养写作能力。 二、过程与方法  通过各种形式复习巩固本单元内容，并能内化为自己的能力，用书面的形式表达出来。 三、情感态度与价值观 遇到困境不要慌张，冷静处理，邻里之间要互相帮助，共渡难关。一些记忆，尽管是不好的，也是我们生活的组成部分，我们要正视这些不美好的记忆并能从中吸取经验教训。 教学重点 1. 复习本单元所学重点词汇，短语和句型。 2. 能熟练运用过去进行时描述过去的事。Teachingfocus培养写作能力。 Teachingmethod总结复习，大量练习。 Learningmethod将所学应用到练习中。 Teachingaids图片，多媒体。 Teachingsteps Step1FreetalkLookatthepictureandtalkaboutwhattheyweredoingwhentheplanehittheWorldTradeCenter.Step2Presentation3aMakenotesaboutaneventyourememberwell.Whatwastheevent?Whendidithappen?Wheredidithappen?Whatwereyoudoing?Whatwereyourfriendsdoing?Whywasitimportant?Whydoyourememberthisevent?Step3Writing3bWriteashortarticleabouttheimportanteventin3a.Trytowritethreeparagraphs.First,writeabouttheevent(whenandwhereithappened).Next,writeaboutwhatyouandsomeofyourfriendsweredoingwhenthiseventhappened.Then,writeaboutwhythiseventwasimportant.AnimportanteventthatIrememberwellwas_____________________.Ithappenedin/on_____________at/in__________________.WhenIheardthenewsofthisevent/Whenthiseventhappened,Iwas____________.Myfriends were_________________.Thiseventisveryimportanttomebecause_____________./Irememberthiseventwellbecause_________________.OnepossibleversionAnimportanteventthatIrememberwellwasWenchuanEarthquake.IthappenedonMay12,2008inWenchuan,Sichuan.WhenIheardthenewsofthisevent,Iwasworking.MyfriendswerewatchinggamesonTV.Thiseventisveryimportanttomebecausemanypeoplediedintheearthquake.Theyneedsomehelp.Lotsofpeoplecametohelpthem.Step4单元复习过去进行时1.概念:表示过去某个时刻或过去一段时间正在进行的动作。2.句子结构:主语+was/were+doingsth.+时间状语3.时间状语词:at5:00yesterdayafternoon,atthattime,then等连用,或者用另一动作来表示过去的时间。如：Theywereplayingbasketballwhenshearrived.Whiletheywereplayingbasketball,shearrived.过去进行时与一般过去时的区别过去进行时着重描述当时正在持续进行的动作，它的特点是：暂时，持续和未完成，强调过程；一般过去时表示发生过的动作或存在的状态，即表示动作发生过，而且已经结束了，强调结果。1)Shirley______abookaboutChinalastyearbutIdon’tknowwhethershehadfinishedit．A.haswrittenB.wroteC.hadwrittenD.waswriting2)Mary____adresswhenshecutherfinger.A.madeB.ismakingC.wasmakingD.makeswasmaking表示正在做衣服的过程，如用made则表示这一动作已结束，做衣服的动作已结束与cutherfinger就没有联系。3)He_______(write)aletter,thenwenttobed.wrote表示动作已结束，做另一件事，如用waswriting就与wenttobed在逻辑上相矛盾。过去进行时侧重表示动作延长的时间长度;一般过去时表示过去某时发生过某事，侧重说明事实。He___________allnightlastnight.（昨晚他一直写……）He________somethinglastnight．（说明他写了……的事实）注：下列几类动词通常不用过去进行时。①表示状态的动词be；②感官动词：feel,hear,see,smell,taste等; ③表示思维或心理状态的动词：believe(认为),forget,consider,know,remember,hope,wish,want等；④表示所属关系的动词：belong,have,own,hold(容纳)等。when,while区别：1.由when引导的时间状语从句，主句用过去进行时，从句应用一般过去时；由while引导的时间状语从句，主句用一般过去时，从句应用过去进行时。Whentheteachercamein,weweretalking.当此句改变主从句的位置时，则为：Whileweweretalking,theteachercamein.2.如果从句和主句的动作同时发生，两句都用过去进行时的时候，多用while引导。如：Theyweresingingwhileweweredancing.【活学活用】1.I_________myhomeworkwhenMike______lastnight.昨天晚上迈克来的时候我正在写作业。2.WhileAnn____________TV,herfather_______home.安正在看电视时，她父亲回来了。3.WhatwereyoudoingwhenI________atthedoor?我敲门(knock)的时候你在干什么？4.She______________theroomwhenI______toseeher.我去看她的时候她不是在打扫房间。BlackboardDesignThefifthperiodSection B 3a-Self Check过去进行时1.概念:表示过去某个时刻或过去一段时间正在进行的动作。2.句子结构:主语+was/were+doingsth.+时间状语Theywereplayingbasketballwhenshearrived.Whiletheywereplayingbasketball,shearrived.Teachingintrospection