Unit5Whatwereyoudoingwhentherainstormcame?Period3(SectionAGrammarFocus-4c)一、教学目标：1.能够帮助学生熟记并正确使用下列单词和短语：havealook、icy、kid、realize、wakeup、havealook、inbadshape、thenightbefore。2.教会学生如何正确使用过去进行时。3.让学生能够理解并正确使用when和while两个词。4.帮助学生学会讲故事；学会谈论难以忘记的事情2.情感态度价值观目标：在困难时期应该互相帮助二、教学重难点过去进行时的用法；when与while引导的时间状语从句三、教学过程Step1RevisionLookatthepicturesandmakeupthesentences.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过去进行时1.基本概念：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/we/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。)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.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.4b.Fillintheblankswithwas,were,whenorwhile.At7:00a.m.,Iwokeup._____I____makingmybreakfast,mybrother______listeningtotheradio.________Iwaseating,theradionewstalkedaboutacaraccidentnearourhome.MybrotherandIwentoutrightawaytohavealook._____wegottotheplaceoftheaccident,thecar_____inbadshapefromhittingatree.Butluckilythedriver____fine.Theroads______icybecauseoftheheavysnowfromthenightbefore.Step6Speaking4c.WhatwereyoudoingatthesetimeslastSunday?Fillinthechart.Thenyou’reyourpartner.YouYourpartner9:00a.m.11:00a.m.4:00p.m.JohnMaryTakephotosBuyadrinkPlaythepianoLeavethehouseCleanhisroomTurnontheradioShopTakethecartothecarwash9:00p.m.Step7HomeworkAfterclass,pleasemakesomedialogueswiththephrasesandsentencesin4c.Homework教学反思：
