英语人教版八年级下册Unit5 Grammer.pptx

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1、Unit5Whatwereyoudoingwhentherainstormcame?SectionA3Grammarfocus-4c第一步，探究新知Whatwereyoudoingateightlastnight?Iwastakingashower.Whatwasshedoingatthetimeoftherainstorm?Shewasdoingherhomework.读下列句子,找出下列句子的共同点和时间状语。环节1；师友探究Whatwashedoingwhentherainstormcame?Hewasreadinginthelibra

2、rywhentherainstormcame.WhatwasBendoingwhenitbegantorainheavily?Whenitbegantorain,Benwashelpinghismommakedinner.WhatwasJennydoingwhileLindawassleeping?WhileLindawassleeping,JennywashelpingMarywithherhomework.1.昨晚八点你在做什么？What________________ateightlastnight?2.我在冲澡。I__________

3、_________.根据汉语意思完成句子。wereyoudoingwastakingashower环节2；师友检测3.暴风雨来的时候她在做什么？What_____________atthetimeoftherainstorm?4.她在做家庭作业。She_______________________.wasshedoingwasdoingherhomework5.暴风雨来的时候他在做什么？Whatwashedoing______therainstormcame?6.暴风雨来的时候他在图书馆看书。Hewasreadinginthelibrary_

4、______________________.whenwhentherainstormcame7.琳达在睡觉的时候，珍妮在做什么？WhatwasJennydoing_____Lindawassleeping?8.琳达在睡觉的时候,珍妮在帮助玛丽做作业。_______________________,JennywashelpingMarywithherhomework.whileWhileLindawassleeping第二步；总结归纳过去进行时态结构：_________________was用于_______,were用于_______和__

5、___时间状语：_____________________________________________________________was/weredoing单数主语复数主语youat点钟/yesterday/lastnightatthattimewhen+过去时态的句子环节1，师友总结·1.构成及用法过去进行时由“was/were+动词-ing”构成，表示在过去某一时刻或某一段时间正在进行的动作。常与过去进行时连用的时间状语有ateight/nine...(o’clock)yesterdaymorning,atthattime，fro

6、meighttotenyesterdaymorning或者when+过去时态的句子等。过去进行时环节2，教师提升·如:Alicewasdoingherhomeworkatsixyesterdayevening.Mikeandhisbrotherwereplayingsoccerfromthreetofouryesterdayafternoon.肯定式：主语+was/were+动词-ing(+其他).如：Iwasswimmingatthattime.否定式:主语+wasn’t/weren’t+动词-ing(+其他).如：Theyweren’tl

7、isteningtomusicattenyesterdaymorning.2.句式疑问式:Was/Were+主语+动词-ing(+其他)?其肯定回答为：Yes,主语(人称代词)+was/were.；否定回答为：No,主语(人称代词)+wasn’t/weren’t.如：—WasJoereadingatthetimeoftherainstorm?—Yes,hewas./No,hewasn’t.第三步；互助释疑when和while都可表示“当……的时候”,引导时间状语从句。你知道两者在过去进行时中的用法有什么不同吗？请仔细观察下面的例句，然后补全空

8、格中的内容。过去进行时中的when和while环节1，师友释疑·①IwaswalkingtoschoolwhenIsawacatinatree.②WhenSally