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1、Unit5Whatwereyoudoingwhentherainstormcame?Period3SectionAGrammarFocus4c【课型】语法课学习目标1.能听、说、读、写下列单词和短语:icy,kid,have a look2.能掌握when与while引导时间状语从句时的区别。3.能熟练掌握和运用过去进行时的构成和用法。(1)肯定句:主语+was/were+doing+时间状语或从句(2)否定句:主语+was/were+not+doing+时间状语或从句(3)一般疑问句:Was/Were+主语+doing+时间状语或从句?(4)特殊疑问句:特殊疑问词+was/were+主语+d
2、oing+时间状语或从句?学习过程【课前预习】根据所给汉语提示完成句子。1.The black clouds were making the sky very dark.Please (打开) the light.2.Let me (看一看) at your family photo.3.The kid (在开玩笑) now.You cant believe him.4.She was late for the competition (由于) the car accident.5.While Linda was sleeping,Jenny was Mary (帮助) her homewor
3、k.6.My father went out (立刻) to have a look at the car accident.7.The streets are (覆盖着冰的) after the heavy snow.【课堂探究】探究:过去进行时(1)过去进行时的构成过去进行时由“”构成,当主语是第一人称单数或第三人称单数时be动词用,当主语是其他的人称和数时be动词用。(2)过去进行时的句式肯定句:主语+v.-ing+其他.否定句:主语+v.-ing+其他.一般疑问句:+主语 +v.-ing+其他?肯定回答:Yes,主语+was/were.否定回答:No,主语+wasnt/werent.特
4、殊疑问句:+主语+v.-ing +其他?提示:当特殊疑问词作主语时,用“特殊疑问词+was/were+v.-ing +其他?”的形式。(3)过去进行时的用法过去进行时表示,时间状语往往是表示过去的某一时间点,如at this time yesterday,at+时刻+yesterday/last night,when sb.did sth.等时间状语或时间状语从句。如:I was playing football at this time yesterday.What were you doing at 8:00 this morning?When I called him,he was ha
5、ving dinner.过去进行时还表示过去某段时间内。They were waiting for you the whole afternoon yesterday.I was doing my homework from 6:30 to 8:00 yesterday evening.(4)when与while引导的时间状语从句when引导的时间状语从句:说明一个动作发生时,另一个动作;也可表示正在进行某一动作时,另一动作了。When the teacher came into the classroom,we were reading English.当老师走进教室时,我们正在读英语。Wh
6、en Kate was flying a kite,she found a wallet lying on the ground.当凯特正在放风筝时,她发现地上有个钱包。while引导的时间状语从句:表示某个动作正在进行的同时,另一动作也在进行之中,这时主从句都用时,有对同类的两个动作进行对比的意味;也可表示某个动作正在进行时,另一动作发生了(该动作用时)。While I was playing the piano,she was dancing.当我在弹钢琴时,她在跳舞。While she was reading,the telephone rang.当她正在看书时,电话铃响了。(5)一般过
7、去时与过去进行时的区别过去进行时强调,一般用到的动词是表示具体行动,动作可延续,同时用到的时间状语表示的范围要小且具体。而一般过去时着重表示,基本上是一个结束了的动作。表示过去状态、抽象、不表具体动作行为的动词不能用过去进行时,但可以用一般过去时。如:He was mending his daughters bike this morning.(强调动作正在进行)He mended his daughters bike this morning.(表明动作做过,并结束了)【课堂练习】一、单项选择。1.John was cleaning his room Mary turned on the r
8、adio.A.whenB.whileC.sinceD.until2.Mary left the house while John the piano.A.playedB.playingC.is playingD.was playing3.Kate was helping make lunch while Jim .A.bought a drinkB.was playing gamesC.arrived homeD.was leaving the house4.He was late for class the car accident.A.thanks forB.becauseC.becaus
9、e ofD.thanks to二、用括号内所给单词的适当形式填空。1.He (sleep) from 12:30 p.m.to 2:00 p.m.yesterday.2.At 8:10 yesterday,they (have) an English class.3.When my mom (buy) a drink,I (take) photos.4.While we (shop),Tom took the car to the car wash.5.When it (begin) to rain,Ben was helping his mom make dinner.6.I went ou
10、t right away (look) at what happened when I heard a strange noise.7.The roads were (ice) because of the heavy snow from night before.8.The car was in bad shape from (hit) a tree.9.(lucky),the driver and passengers were fine in the bus accident.10.It began to snow (heavy) at 9:00 last night.【自我反思】1.我
11、的收获:2.我的易错点:参考答案课前预习1.turn on2.have a look3.is kidding4.because of5.helping;with6.right away7.icy课堂探究探究:(1)was/were+v.-ing;was;were(2)was/werewas not(wasnt)/were not(werent)Was/Were特殊疑问词;was/were(3)过去某一时刻正在进行的动作正在进行的动作(4)正在进行;发生过去进行;一般过去(5)过去某一时刻正在进行或发生的动作;在过去做过课堂练习一、14.ADBC二、1.was sleeping2.were having3.bought;was taking4.were shopping5.began6.to look7.icy8.hitting9.Luckily10.heavily
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