八年级英语下册Unit5WhatwereyoudoingwhentherainstormcamePeriod3SectionAGrammarFocus_4c学案设计.doc
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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
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