资源描述：
《Unit 5 Section A (grammar focus-4c) 新授课课件 .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、Unit5Whatwereyoudoingwhentherainstormcame?SectionA3Grammarfocus-4cWhenI…Hewasdoing…WhenIcalledhimup,hewassleeping.Makeupthesentences.WhileI…Hewasdoing…WhileIwalkedtoschool,hewaseating.WhenI…Hewasdoing…WhenIreadthenewspaper,hewaswatchingTV.Whatwereyoudoingateightlastnight?Iwastakingash
2、ower.Whatwasshedoingatthetimeoftherainstorm?Shewasdoingherhomework.GrammarFocus读下列句子,你能总结出句子中包含的语法吗？Whatwashedoingwhentherainstormcame?Hewasreadinginthelibrarywhentherainstormcame.WhatwasBendoingwhenitbegantorainheavily?Whenitbegantorain,Benwashelpinghismommakedinner.WhatwasJennydoing
3、whileLindawassleeping?WhileLindawassleeping,JennywashelpingMarywithherhomework.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+动词-ing过去进行时例如:A:Whatwereyoudoingateightlastnight?昨晚八点你在干什么？B:Iwastakingashower.我(当时)在淋浴。A:Whatwashedoingwhentherainstormcame?暴风雨来
4、的时候他在干什么？B:Hewasreadinginthelibrarywhentherainstormcame.暴风雨来的时候他在图书馆看书。A:WhatwasJennydoingwhileLindawassleeping?琳达在睡觉的时候,珍妮在做什么？B:WhileLindawassleeping,JennywashelpingMarywithherhomework.琳达在睡觉的时候,珍妮在帮助玛丽做作业。肯定式：I/He/She/Itwasworking.We/You/They/wereworking.否定式:I/He/She/Itwasnotworking
5、.We/You/They/werenotworking.3.句式(以work为例)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
6、)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。)atfiveyesterdayafternoonA:Whatwastheboydoingattableatfiveyesterdayafternoon?B:Hew
7、asspeakingwithagirl.A:Wasthegirlatthetablewriting?B:No,shewasn’t.when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。过去进行时中的when和while①IwaswalkingtoschoolwhenIsawacatinatree.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
8、语从句，主
