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1、过去进行时(第一课时)学案亲爱的同学们,截止今日,我们已经学习了一般现在时、一般过去时、现在进行时以及一般将来时等四种时态。现在,请你根据所学,判断出下列句子使用了什么时态。1.Iwillalwaysstaybyyourside.()2.Heneverhelpshisparentsaroundthehouse.()3.Tomranoutofallhismoney.()4.Look!Thegirlstudentsaredancingunderthebigtree.()5.Wewerehavingamathcl
2、assatthistimeofyesterday.()今天,我们将学习一种新的时态,即过去进行时,就如我们第五个句子,当我们要表示:在过去某一时刻或某一段时间正在进行的动作时,我们就用过去进行时。I.过去进行时的结构过去进行时是由:“助动词be(was/were)+动词ing形式+过去的时间状语”构成。例如:MymotherwascookingwhenIgothomelastFridayevening.TheTaylorswerehavingdinnerwhentheearthquaketookplace.
3、II.过去进行时的三问题①助动词be(was/were):什么时候用was?什么时候用were?A:当句子的主语是人称代词I,he,she,it以及单数名词或不可数名词时用was。如:Iwasdoinghomeworkwhentheteachercamein.B:当句子的主语是人称代词we,you,they以及复数名词时用were。如:TheywereswimmingwhileIwasfishing.②动词ing形式,即动词现在分词的构成请你写出下列动词的现在分词形式ask—lie—swim—put—loo
4、k—take—get—begin—carry—ride—sit—travel—③过去的时间状语在过去进行时态中,有一个特定的过去的时间,除了上下文暗示以外,一般用时间状语来表示。A:用一个具体的表示过去的时间点。例如:ateightlastnight;atthistimeofyesterday;atthattime…B:用连词when或while引导的时间状语从句来表示。★when“当…..时候”,后面跟的动词多数是短暂性动词,常用一般过去时态。WhentheUFOtookoff,theboywastaki
5、ngphotos.★while“当…..时候”,后面跟的动词必须是延续性动词,常用进行时态。Whiletheboywastakingphotos,theUFOtookoff.试比较:1.Whenthealiengotout,thegirlwasshopping.=Whilethegirlwasshopping,thealiengotout.2.WhentheUFOlanded,theboywaswalkingdownthestreet.=Whiletheboywaswalkingdownthestreet,
6、theUFOlanded(ThenpracticeinpairsusingthepicturesinPPT.)小试牛刀:I.用was或were填空。1.Anoldman______fishingbytheriverwhenthefloodcame.2.TheMillers______havinglunch,whenthefirehappened.3.~What____youdoingat11:00lastnight?~I______takingashower.4.They_____playingthepia
7、nowhenIsawthemjustnow.5.AT9:00a.m.yesterday,busNo.26_____goingalongZhonghuaRoad.II.用when或while填空。6.Tomwaseatingdinner,itbegantorainoutside.7.WhatwereyoudoingMr.Zhoucamein?8.Peterwassleeping,athiefbrokeintohishouse.9.ShewasreadinghersisterwaswatchingTV.10._
8、_______therainstormcame,Marywasdoingherhomework.III.根据汉语意思完成下列英语句子,每空一词。11.昨天下午五点钟你哥哥在做什么?What________yourbrother________atfiveyesterdayafternoon?12.昨天我回到家时,我妈妈在洗衣服。Mymother_____________clothes________I______