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1、人教版初中英語八年級下冊Unit5Whatwereyoudoingwhentherainstormcame?SectionA（3a-3c）永年區(qū)第八中學寧獻龍Iwasreading.Whatwereyoudoingwhentherainstormcame?Iwascooking.Iwasinthekitchen.Wherewereyouwhentherainstormcame?Iwasintheliving-room.WhenI…Hewasdoing…WhenIcalledhimup,hewassleeping.Makeupthes
2、entences.WhileI…Hewasdoing…WhileIwalkedtoschool,hewaseating.WhenI…Hewasdoing…WhenIreadthenewspaper,hewaswatchingTV.Whatwereyoudoingateightlastnight?Iwastakingashower.Whatwasshedoingatthetimeoftherainstorm?Shewasdoingherhomework.GrammarFocus讀下列句子,你能總結出句子中包含的語法嗎？Whatwash
3、edoingwhentherainstormcame?Hewasreadinginthelibrarywhentherainstormcame.WhatwasBendoingwhenitbegantorainheavily?Whenitbegantorain,Benwashelpinghismommakedinner.WhatwasJennydoingwhileLindawassleeping?WhileLindawassleeping,JennywashelpingMarywithherhomework.when和while都可表
4、示“當……的時候”，引導時間狀語從句。你知道兩者在過去進行時中的用法有什么不同嗎？1.過去進行時中的when和while合作與探究when表示“當……的時候”。從句中既可用延續(xù)性動詞,又可用非延續(xù)性動詞,這些動詞既可以表示動作,又可表示狀態(tài)。從句中的動作既可和主句的動作同時發(fā)生,又可在主句的動作之前或之后發(fā)生。如：MarywashavingdinnerwhenIsawher.Theboywasstillsleepingwhenhismothergothomeyesterdaymorning.①Iwaswalkingtoschoolw
5、henIsawacatinatree.②WhenSallyarrivedhome,hermotherwascleaningthehouse.主句的動作是持續(xù)性的，而從句動作是短暫性的，此時用______引導時間狀語從句，主句用__________時態(tài)，從句用一般過去時態(tài)。過去進行when③WhileIwassleepinginthebedroom,someoneknockedatthedoor.④Davidfellwhilehewasridinghisbike.主句的動作是短暫性的，從句的動作是持續(xù)性的，此時用_______引導從句
6、，主句用__________時態(tài)，從句用過去進行時態(tài)。一般過去while1.總結1)when可指時間點,又可指時間段,從句中可用延續(xù)性動詞,也可用非延續(xù)性動詞。2)while總是指一個時間段,從句中必須用延續(xù)性動詞。2.過去進行時1.概念:表示過去某一時刻或某段時間內(nèi)正進行的動作。2.構成:was/were+動詞現(xiàn)在分詞3.用法:a:表示某一時刻正進行的行為,與特定的過去時間狀語連用,常見的時間有:at8lastnight,atthistimeatthattime,atthatmoment等e.g.Whatwereyoudoinga
7、t10yesterdaymorning?Iwaswritingalettertomyfatheratthatmoment.b:表示過去某段時間內(nèi)正進行的動作。e.g.Wewerebuildingahouselastwinter.Theywerewaitingforyouyesterday.否定句和疑問句：e.g.Wewerenotsleepingathome.Washefeelingwell?Lookatthetableandwritesentenceswithbothwhileandwhen.活學活用4a1.WhileJohnwa
8、stakingphotos,Maryboughtadrink.JohnwastakingphotoswhenMaryboughtadrink.2.WhileJohnwasplayingthepiano,Maryleftthehouse
