资源描述：
《英语人教版八年级下册Unit 5 3B-Self -check.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?单元目标when,while过去进行时Unit5过去进行时定义1.表示过去某一时刻正在进行或发生的动作。They were playing footballat ten o’clockyesterday morning.2.表示过去某一阶段一直在进行的动作。I was watchingTvfrom7:00to9:00yesterday.过去进行时的结构否定形式一般疑问句形式主语+was/were+not+doingWas/Were
2、+主语+doing?主语+was/were+doing+其他Hewassleepingatthattime.Hewasn’tsleepingatthattime.Washesleepingatthattime?肯定形式特殊疑问句构成：What/Where/Why/How等疑问词+was/were+主语+V-ing(其他）？例：Whatwereyoudoingatthistimeyesterday.过去进行时标志词then,atthattime/moment,thistimeyesterday,at5o’clock
3、lastnight,allnight,allthemorning,from7:00to9:00yesterday…whensb.Didsth.等动名词变化规则区别：1.由when引导的时间状语从句，主句用过去进行时，从句应用一般过去时；由while引导的时间状语从句，主句用一般过去时，从句应用过去进行时。Whentheteachercamein,weweretalking.当此句改变主从句的位置时，则为：Whileweweretalking,theteachercamein.when,whileTheywerep
4、layingbasketballwhenshearrived.可改为：Whiletheywereplayingbasketball,shearrived.Practice2.如果从句和主句的动作同时发生，两句都用过去进行时的时候，多用while引导。如：Theyweresingingwhileweweredancing.1._______weweretalkingintheclassroom,theteachercamein.2._______theygottotheairport,itwasraining.3.
5、_______shewasreadingabook,thephonerang.4._______Isawtheboy,hewaswearinganewcoat.5._______hewasreading,hefellasleep.用when或while填空。WhileWhenWhileWhenWhile1.Wewerecampingonthehillwhenitbegantorain.=andthen2.Ilikecoffee,whilemysisterlikestea.3.Whilethereiswater,t
6、hereishopeoflife.4.WhileIwaswalkingalongthestreet,Imetmyfriend.Whilewalkingalongthestreet,Imetmyfriend.你知道吗？1.I_________myhomeworkwhenMike______lastnight.昨天晚上迈克来的时候我正在写作业。2.WhileAnn____________TV,herfather_______home.安正在看电视时，她父亲回来了。wasdoingcamewaswatchingcame
7、活学活用3.WhatwereyoudoingwhenI________atthedoor?我敲门(knock)的时候你在干什么？4.She______________theroomwhenI______toseeher.我去看她的时候她不是在打扫房间。wasn’tcleaningwentknocked5.上课铃响时,你在干什么?What_____you______whentheclassbellrang?6.当我妈妈进来时我正在看书.I_____________whenmymothercamein.7.昨天晚上十
8、点钟她正在做饭.She____________atteno’clock_____________.weredoingwasreadingwascookinglastnight1.感觉像2.首先3.入睡4.逐渐变弱5.确信6.醒来7.凌乱8.清洁9.互相帮助feellikeatfirstfallasleepdiedownmakesurewakeupinamesscleanu
