资源描述:
《英语人教版八年级下册Unit 5 SectionA Period 3》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、SectionA3(Grammarfocus-4c)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.Whatwashedoingwhentherainstorm
2、came?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
3、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
4、.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:Davidwrotealettertohisf
5、riendlastnight.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。①Iwaswalkingtosc
6、hoolwhenIsawacatinatree.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_____
7、____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.Lookatthetableandwritesentenceswit
8、hbothwhileandwhen.JohnMarytakephotosbuyadrinkplaythepianoleavethehousecleanhisroomturnontheradioshoptakethecartothecarwash4b.Fillintheblankswithwas,were