八年级英语下册Unit5Whatwereyoudoingwhentherainstormcame第三

第三课时SectionA(GrammarFocus～4c)单元语法精讲精练1．定义：表示在过去某一时刻或某一段时间内正在进行的动作。2．构成：was/were＋v.ing说明：第一人称单数和第三人称单数用was，其余用were。3．句型结构：肯定句：主语＋was/were＋v.ing＋其他．否定句：主语＋was/were＋not＋v.ing＋其他．一般疑问句：Was/Were＋主语＋v.ing＋其他？回答：Yes，主语＋was/were.；No，主语＋wasn't/weren't.4．常用时间状语：atthattime，thistimeyesterday，from6a．m.to9a．m.，lastMonday，when＋一般过去时的时间状语从句等。过去进行时5．过去进行时和一般过去时的区别：过去进行时表示在过去某时刻或某段时间内发生的动作，强调动作正在进行。一般过去时表示过去发生的动作，多侧重于动作已经完成。eg：HewaswatchingTVthistimeyesterday.HewatchedTVyesterday.【辨析】when与while(1)when引导时间状语从句，表示“当……的时候”，它引导的从句的谓语动词可以是延续性动词，也可以是非延续性动词，从句的谓语可以是进行时态，也可以是非进行时态。(2)while常指一段时间，不指具体时间点，引导的从句中谓语动词必须是延续性动词，谓语常用进行时态。一、用所给词的适当形式填空。1．WhenIgothomeyesterdayafternoon，it____________(rain)hard.2．Tom_______________(write)hislessonswhenheheardaterriblenoiseoutside.3．I_____________(read)anovellastnightwhenIheardknocksatthedoor.(2015，兰州)4．—Whydidthepolicemanstopyourcar?—I_______________(make)acallatthatmoment.Whatabadday！(2015，无锡)5．Weweretalkingabouttheschoolbuswhentheteacher______(come)intotheclassroom.wasrainingwaswritingwasreadingwasmakingcame二、单项选择。6．Mysisterwaswritinganemail____IwaswatchingTVatthistimeyesterday.(2015，北海)A．untilB．afterC．whileD．assoonas7．—Whydidn'tyoupickupmyphoneyesterdayevening?—Oh，I____inthekitchenatthattime.(2015，崇左)A．cookingB．cooksC．wascookingD．cooked8．—Mike，whatwereyourparentsdoingat8：00lastnight?—Mymotherwasreading____myfatherwasplayingcomputergames.(2015，黄冈)A．whileB．whenC．unlessD．aslongasCCA9．I____withmyparentswhenherangmeupyesterdayafternoon.(2015，兰州)A．amshoppingB．amshopingC．wasshoppingD．wasshoping10．Ididn'thearthephonebecausemyfather____TVthen.A．iswatchingB．waswatchingC．watchedD．watches11．Eddiewassleeping____Milliewasreadingamagazine.(2015，宿迁)A．untilB．whileC．beforeD．afterCBB三、按要求完成句子，每空一词。12．Frankwaswashing_clothesatthetimeoftherainstorm.(对划线部分提问)___________Frank_______atthetimeoftherainstorm?13．TheyarewatchingTVnow.(用atthistimeyesterday替代now改写句子)They___________________atthistimeyesterday.14．WhenJimcalledhimforhelp，Jackwastakingarest.(改成同义句)_______Jackwastalkingarest，Jimcalledhimforhelp.15．Wereyoudoingyourhomeworkat5：00yesterdayafternoon？(作肯定回答)____________________．WhatwasdoingwerewatchingTVWhileYes，I/wewas/were