资源描述：
《八下：Unit 5 Section A Period 3.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、Unit5 Whatwereyoudoingwhen therainstormarrived?Period3SectionA4a-4cGrammarfocusWhatwereyoudoingwhentherainstormcame?Iwastakingashower.Iwassleeping.Iwascooking.Whatwereyoudoingwhentherainstormcame?Iwascuttinghair.Iwasreading.Whatwereyoudoingwhentherainstormcame?Iwaswatch
2、ingTV.Whatwereyoudoingateightlastnight?Iwastakingashower.Whatwasshedoingatthetimeoftherainstorm?Shewasdoingherhomework.读下列句子,你能总结出句子中包含的语法吗？1.以when和while引导的时间状语从句1)延续性动词和非延续性动词延续性动词指动作可以延续一段时间,而不是瞬间结束。如:work、study、drink、eat等。非延续性动词指动作极为短暂，瞬间结束。如:start、begin、hit、jump、kno
3、ck等。2)在本单元中,出现了以when和while引导的时间状语从句。when表示“当……的时候”。从句中既可用延续性动词,又可用非延续性动词,这些动词既可以表示动作,又可表示状态。从句中的动作既可和主句的动作同时发生,又可在主句的动作之前或之后发生。如：MarywashavingdinnerwhenIsawher.Theboywasstillsleepingwhenhismothergothomeyesterdaymorning.while表示“在……的时候”、“在……期间”。它强调主句的动作与从句的动作同时发生或主句的动作发生在
4、从句的动作过程中。While从句中必须是表示动作或状态的延续性动词。如：TheweatherwasfinewhilewewereinBeijing.ShecalledwhileIwasout.如果主句的动作在从句的动作过程中发生，从句常用进行时。如:Whilewewereswimmingsomeonestoleourclothes.Don’ttalksoloudwhileothersareworking.总结1)when可指时间点,又可指时间段,从句中可用延续性动词,也可用非延续性动词。2)while总是指一个时间段,从句中必须用延续
5、性动词。过去进行时含义:表示过去某个时刻正在进行的动作。结构：was/were+doing例句：IwashavinganEnglishclassatthistimeyesterday.现在进行时含义:表示现在正在进行的动作。结构：is/am/are+doing例句：IamhavinganEnglishclass.6.Fillintheblankswithwas,were,whenorwhile.At7:00a.m.,Iwokeup.______I____makingmybreakfast,mybrother_____listening
6、totheradio._______Iwaseating,theradionewstalkedaboutacaraccidentnearourhome.MybrotherandIwentoutrightawaytohavealook._______wegottotheplaceoftheaccident,thecar______inbadshapefromhittingatree.Butluckily,thedriver______fine.Theroads______icybecauseoftheheavysnowfromtheni
7、ghtbefore.WhilewaswasWhileWhenwaswaswere4bWhatwereyoudoingatthesetimeslastSunday?Fillinthechart.Thenaskyourpartner.A:Whatwereyoudoingatnineo’clocklastSundaymorning?B:Iwassleeping.Howaboutyou?A:Iwasdoingmyhomework.B:You'rekidding!4cHomeworkWhatwereyoudoingatthesetimeslas
8、tSunday?Practicemorewithyourclassmates.
