WhatwereyoudoingwhentheUFOarrived_6精品文档

1、what were you doing when the ufo arrived八年级下英语学案第13课时【课题】：unit3sectiona【励志小木屋】：idontthinkmuchofamanwhoisnotwisertodayhewasyesterday如果一个人今天没有比昨天变得更聪明，那我是不会看重他的。【预习目标】：1.识记p18-19单词、短语2.理解一般过去时与过去进行时的区别。3.理解when,while引导的时间状语从句【预习重难点】：重难点：1.when,while引导的时间状语从句。2.过去进行时。一自主预习（一）预习任务.写出下列单词、短语：在图书馆前面_做饭_理发

2、_睡过头_在浴室_getoutoftheshower_landon_takeoff_barbershop_2.英汉互译：1).theywroteletterstotheirfriendslastnight.2).theywerewritingletterstotheirfriendslastnight.3).昨天我们上了一节英语课。_4).昨天八点钟我们上了一节英语课。_5).当ufo到达的时候你正在干什么？_（二）预习诊断.词的适当形式填空：.iwasinthe_chair.2.he_latewhenitarrived.3.thealienvisitedthemuseumof_.4.what

3、wasthegirldoingwhentheufo_off?（三）预习反思doyouhaveanyquestions?二课中实施step1预习交流step2warming-upstep3lead-instep4pairworkstep4精讲点拨:.过去进行时：表示在过去某一时间内正在进行的动作。构成：was/were+现在分词用法：1）过去进行时表现过去某一时刻正在进行的动作。eg.shewaswritingaletterwhenicamein.我进来时，她正在写封信。2）过去进行时还表示过去某阶段正在进行的动作。eg.theywerewaitingforyouyesterday.他们昨天一直

4、在等你。2.when/while区别:_wewerewatchingthemovie,youclosedthedoor。wewerewatchingthemovie,_youclosedthedoor。when既可指时间点，也可指时间段。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。while指一段时间，其引导的时间状语从句，主句用一般过去时，从句用过去进行时，或主从句都可用过去进行时。step5拓展延伸：用when，while填空._thealienwasinthemuseum,icalledthepolice.2.theboywaswalkingdownthestree

5、t_aufolanded.3._thealienwasvisitingthemuseum,theboycalledthetvstation.4.iwascleaningmyroom_thefirebrokeout.5._lindawasshoutinghisname,somepeoplelookedather.6._lindafinallysawdavy,hewasjumpingwithadog.step6系统总结三、限时作业满分10分得分_单选：1.what_you_atthistimeyesterday?myhomework.a.did,dob.are,doingc.were,doing2

6、.where_you_lunchyesterday?atschool.a.did,haveb.were,havingc.do,have3._there_areportonhowtolearnenglishtomorrowafternoon?imnotsure.youmayaskdennis.a.will,haveb.is,goingtohavec.will,be4.therearesomebigtrees_ourclassroom.a.infrontofb.inthefrontofc.onthefront5.whatwereyoudoing_theaccidenthappened?a.whil

7、eb.whenc.that词的适当形式填空：6.whilewe_dinner,thetelephonerang.7.youarealways_.ifyoudothesamethingagain,illbeangry.8.we_bookswhilethey_tvyesterday.9.thetelephoneisbroken.itdoesntmatter.maybeyoucould_itbyyourself.0.what_you_whenyourmothercameback?homework:根据句意及首字母提示补全单词：.ineedtocutmyhair.doyouknowwhereisthenearestb_shop?2.whileiwascleaningtheroom,mumwascookinginthek_.3.idontbelieve