人教版初中八年级下册英语精品教学课件Unit 5 第3课时（A Grammar Focus-4c）.ppt

Summary二、when与while引导的时间状语从句一、过去进行时定义构成常用的时间状语基本句式过去进行时与一般过去时的用法区别Grammar1.Reviewthegrammarofthisunit.2.Write10sentencesaccordingtoGrammarFocus.3.Dotheexercises.HomeworkUnit5Whatwereyoudoingwhentherainstormcame?SectionAGrammarFocus-4cR·八年级下册Curriculumwordsandusefulexpressions:FunctionsGrammarLearningObjectivesTalkaboutpasteventsandtellastory.havealook,icy,kid...when与while引导的时间状语从句；过去进行时Lookandfillintheblanks1.—Whatwereyoudoingateight

lastnight?—I____________ashower.2.—Whatwasshedoingatthetimeof

therainstorm?—She____________herhomework.wastakingwasdoing3.—Whatwashedoingwhenthe

rainstormcame?—He______________inthelibrarywhentherainstormcame.4.—WhatwasBendoingwhenitbegan

torainheavily?—______itbegantorain,Benwas

helpinghismommakedinner.Whenwasreading5.—WhatwasJennydoingwhileLindawassleeping?—______Lindawassleeping,Jennywashelping

Marywithherhomework.Hewasreadinginthelibrarywhentherainstormcame.Whatwereyoudoingateightlastnight?Iwastakingashower.Whatwasshedoingatthetimeoftherainstorm?Shewasdoingherhomework.Whatwashedoingwhentherainstormcame?Hewasreadinginthelibrarywhentherainstormcame.过去进行时WhatwasBendoingwhenitbegantorainheavily?Whenitbegantorain,Benwashelpinghismommakedinner.WhatwasJennydoingwhileLindawassleeping?WhileLindawassleeping,JennywashelpingMarywithherhomework.when与while引导的时间状语从句一、过去进行时定义：表示过去某个时刻或某一时间段内正在进行或发生的动作。常用的时间状语：atthis/thattimeyesterday,atsixyesterdaymorning,allnight等。构成：was/were+动词-ing形式当主语是第一人称单数形式或第三人称单数形式时，be动词用was，其余人称用were。过去进行时一般过去时表示过去某个时刻或某一时间段内正在进行或发生的动作，强调动作正在进行。表示过去发生的动作或存在的状态，强调动作已发生或已完成。过去进行时与一般过去时的用法区别昨天那个时候格雷丝