Unit3WhatwereyoudoingwhentheUFOarrived？主备人：时间：执教人：教学目标:（一）知识目标单词和短语:Words:barbershop,bathroom,accident,earth,silence,playground,around,strange,kitchen,modern,follow,experience,amazing,climb,anywhere,takeplace,WorldTradeCenter,runaway,hearabout,comein,getout,takeoff.(二)能力目标学习过去进行时态以及when、while引导的状语从句，并能用过去进行时态叙述过去发生的事。（三）情感目标激发学生探索大自然奥秘的兴趣。教学重难点1.过去进行时态以及when、while引导的状语从句。2.过去进行时态的概念、构成及其用法。教学方法：1)Task-BasedLanguageTeaching2)Thecognitiveapproach3)Theoralapproach教学媒体:多媒体，录音机投影仪课时分配:Period1:SectionA(1a---Grammar)Period2:SectionA3a---SectionA4Period3：SectionB1a---Self-checkPeriod：4Reading教学过程Period1Step1OrganizationExchangegreetingswiththeSs.Dutyreport:Itisbetweentwostudents.Theyarehavingadialogue.EnjoyaclipoffilmabouttheUFOStep2Revision1.ShowfouranimationpicturesonthescreenAftershowingthepictures,ask:----WhatisPeter’smotherdoing?---Sheiscooking.---WhatisPeter’sfatherdoing?---HeiswatchingTV.---WhatisPeterdoing?---Heissleepinglate.---WhatisPeter’sbrotherdoing?.---Heisgettingoutoftheshower2.Leadthestudentsintotherealsituations:Askoneboystudent:Whatareyoudoingnow?Thestudentmayanswer:Iamlisteningtoyou.Askthewholeclass:Whatishedoing?Thewholeclassanswer:Heislisteningtoyou.Repeatthiswithonegirlstudent.Practicewiththewholeclass,tryingtorevisethetensewithdifferentpersonalpronouns.Step3Leadingin:introducethepastcontinuoustensetothestudents1.Askonestudent(studentA)toleavetheroomandwaitoutsidethedoorThenasktwostudentstodoactions,one(studentsB)iswritingontheblackboardandtheother(studentC)isdrawingapicture.TheykeepdoingitwithoutstoppinguntilIaskthemtostop.2.AskstudentB:Whatareyoudoing?StudentBanswers:Iamwritingontheblackboard.(Writethesentenceontheblackboardasblackboardwork)RepeatthiswithstudentC,write:Iamdrawingapicture3.Askthestudentoutsidetocomeinandsitdown.Thenaskthetwostudentswhoaredoingactionssitdowntoo.4.Askthefirststudentwhowaswritingontheblackboard.Ask:Whatwereyoudoingwhen(studentA)camein?Helphimtoanswer:Iwaswritingontheblackboardwhenhecamein.(WriteIwaswritingontheblackboardastheblackboardwork)Isaytotheclass:Hewaswritingontheblackboardwhen(studentA)camein.Asktheclasstorepeatthissentence.5.Repeatthiswiththesecondstudentwhowasdrawingapicture.(WriteIwasdrawingapicture)6.Asksomeotherstudentsthequestion:Whatwereyoudoingwhen(studentA)camein?Thenstudentsaskandanswerinpairs:Whatwereyoudoingwhen(studentA)camein?7.Pointtotheblackboard-writing(Duringmyteachingabove,Ihavewrittenitontheblackboardstepbystep).Helpthemtofindoutthedifferencesbetweenthetwopairsofsentences.Tellthestudents:Todaywearegoingtolearnanewtense----thepastcontinuoustense.Introducethepastcontinuoustense.Iamwritingontheblackboard.IwaswritingontheblackboardwhenAcamein.Iamdrawingapicture.IwasdrawingapicturewhenAcamein..8.Morepracticeaboutcontinuoustense.9.Comparison:makeacomparisonbetweenthetwotenses.时态现在进行时过去进行时用法表示现在正在进行的动作表示过去某个时刻正在进行的动作结构is/am/are+doingwas/were+doing例句IamhavinganEnglishclassIwashavinganEnglishclass.Step4SectionA1a1.ShowapictureofallkindsofUFOsandaskSs:WhatisUFO?Doyouknow?HelpSsanswer:UnidentifiedFlyingObject2.Showapictureofallkindsofaliensandask:Whatdoesthealienlooklike?Ssansweraccordingtotheirimaginati...
