初中九年级英语课件Unit2Lifeisfulloftheunexpected语法

课题：Lifeisfulloftheunexpected.难点名称：语法（过去完成时）1参赛教师：时间：九年级-下册-第12单元参赛教师：乌鲁木齐第十五中学张燕时间：2020.8.20目录CONTENTS2导入知识讲解课堂练习小节1.

BythetimeI______,mybrother______________________.gotuphadgottenintheshowernowgotintheshowergotupPastperfecttenseⅠ.导入：2.

BythetimeI__________,thebus____already_____.hadgotoutsideleftnowthebusleftgotoutside3.BythetimeI___________,IrealizedI________mybackpackathome.hadleftgottoschoolnowleftmybackpackathomegottoschool1.构成：had＋过去分词2.用法：过去完成时可以表示过去某一时刻或某一动作之前完成的动作或呈现的状态。也就是说发生在“过去的过去”。Ⅱ.知识讲解：PastPerfectTense过去完成时

一1.规则动词的过去式，过去分词1)一般情况在动词V原形后+watchededpracticed2)以不发音e结尾的+3)以辅音加y结尾的,study---4)以重读闭音节结尾，末尾只有一个辅音字母,如：stop去y变i+edstudied双写尾字母，再+edpedd1.

build_________________make_________________2.speak________________write________________3.

cut_____________bet____________builtbuiltmade

madespokespokenwrotewrittencutcut2不规则动词的过去式和过去分词：ABBABCAAAABA4.

run____________become______________

ranrunbecamebecome

betbet形式多样，找规律，分门别类，要牢记！3.与过去完成时连用的时间状语

1.Ihadfinishedreadingthenovelbynineo’clocklastnight.2.WehadlearnedovertwothousandEnglishwordsbytheendoflastterm.3.TheyhadplantedsixhundredtreesbeforelastWednesday.

before+过去时间by+过去时间bytheendof+过去时间4.过去完成时态的用法：1)表示过去的过去，通常由when或by引导的短语或者从句作时间状语或时间状语从句①Bytheendoflastyear,IhadlearnedaboutonethousandEnglishwords.②Bythetimehewastwenty,hehadwonabouttenmedals.③WhenIgotthere,theyhadalreadyleft.2)常用在宾语从句中①Hetoldmehehadalreadyfinishedhishomework.②Irealizedhehadfooledmeagain.3)体现在上下文中Ididn’tgotothemoviesyesterdaybecauseIhadseenittwice.

Igottoschoolnow8:158:00amTheteachercameintotheclassroomBythetimeI

gottoschool,theteacher

hadcomeintotheclassroom.Ⅲ.课堂练习：MakeasentencewithPastPerfectTense.

6:007:00现在

BythetimeIgotup,mysisterhadalreadywashedalltheclothes.MakeasentencewithPastPerfectTenseIgothomenow9:00pm8:00pmMylittlebrotherwenttobedBythetimeI

got

home,mylittlebrotherhadgone

tobed.MakeasentencewithPastPerfectTense.When

Igottoschool,IrealizedthatIhadleftmybackpackathome.BythetimeIgotbacktoschool,thebellhadrung.Before

Igottothebusstop,thebushadalreadyleft.总结：由when,bythetime,before等引导时间状语从句时，若描述发生在过去的事，主句常用过去完成时(had+过去分词)表示动作发生在过去的过去。IV.总结与操练

Practice

Fillintheblankswiththecorrectformsofthewordsinthebox.

1.BythetimeIarrivedattheparty,everyoneelse________already_____________.2.Whenheputthenoodlesintoabowl,herealizedhe____________toaddthegreenbeans.3.Bythetimemymothercamebackfromthemarket,I_______already____________thedoortogoformypianolesson.4.Beforeshegottotheairport,she________________abouttheearthquake.5.Whenshe_____________themovietheater,sherememberedshehadforgo