2023学年完整公开课版Unit4Topic2SectionD教案1

SectionDThemainactivitiesare1aand3.本课重点活动是1Ⅰ.Teachingaimsanddemands教学目标1.Learnnewphrasesandusefulexpressions:aslongas,runaway,inshortInshort,thisrobotisveryusefultous.2.Sumupthesimplepastpassivevoice.3.Talkaboutnewtechnologiesandinventions.Ⅱ.Teachingaids教具讲解GPS的有声多媒体课件(没条件的就用小黑板事先写好)/标有发明物的卡片/录音机Ⅲ.Five-fingerTeachingPlan五指教学方案Step1Review第一步复习(时间:13分钟)1.(师生互动，带学生一起复习归纳本话题的语法及语言点。激发学生的兴趣，培养学生的口语表达能力。)T:Howareyou,boysandgirls?Ss:Fine,thankyou.Andyou?Ss:Yes,welearnedthelightbulb,thecar,thecellphone…T:Veryclever.Butwhocantellmewhenthelightbulbwasinvented?Andwhoinventedit?S1:Itwasinventedin1879.S2:I’mnotsure,butitwasinventedbyThomasEdison.T:Doyouremembertheplar?Ss:Yes.T:Whenwasitinvented?Ss:Around2022.T:Wherewasitinvented?Ss:I’mnotsure.MaybeitwasinventedinKangkang’shome.T:OK,verygood.(板书)Whenwasitinvented?Around2022.Wherewasitinvented?Itwasinvented…(出示手机的卡片)T:Whenwasthecellphoneinvented?S3:Itwasinventedin1973.T:Wherewasitinvented?S4:ItwasinventedinAmerica.2.(紧承上面的话题，以手机为切入点，导入新课。)T: Cellphonesarewidelyusedallovertheworld.It’sreportedthatover93%offamiliesincitiesowncellphones,butcellphonesarelosteasily.Haveyouwatchedthemovie“AWorldWithoutThieves”?Ss:Yes.T:Inthemovie,alotofcellphoneswerestolenby“LiuDehua”.Nowadays,oneofthenewtechnologiescanbeusedtofindthelostcellphoneseasily.Isitamazing?OK,let’sread1candthinkaboutthequestion:Whycouldthepolicecatchthethiefeasily?(板书并解释)runaway逃跑，失控(一分钟后)Haveyoufinishedreading?Doyouwanttoknowtheanswer?Well,let’sbeginthenewlesson.Step2Presentation第二步呈现(时间:10分钟)1.(播放多媒体，简介GPS，让学生了解其意义，展示GPS的背景知识。)T:Lookatthescreen.GPSisshortfortheGlobalPositioningSystem.(板书)globaladj.全球的，世界的GPS=theGlobalPositioningSystemGPSislikeman-made“stars”.Wecanuseitatanytime,inanyplaceandinanyweathertofindoutourposition.Theearlyexplorersusedthestarsaslandmarkstoknowwheretheywereandinwhichdirectiontheyweregoing.Butthismethodworkedwellatnightaslongastheweatherwasgood.(板书并解释。)landmarkn.aslongas…只要Thismethodworkedwellatnightaslongastheweatherwasgood.2.(让学生打开课本，播放录音。要求学生认真听录音的同时，注意划出关键词。教师板书。)T:Boysandgirls,justnowItalkedsomethingaboutGPS.Nowlet’slistentothetapetolearnapassageaboutGPS,andunderlinethekeywords.(板书)question,explorers,landmarks,findout,direction,aslongas,problem,like,use,shape3.(让学生阅读1a，然后讨论下列问题，四人一组。完成1b。)Questions:1.Whatwouldyoudoifyoulostyourwayinaforest?2.Howdidtheearlyexplorersknowwheretheywere?3.WhatisGPS?Isitusefultous?4.WhatdoyouthinkGPSwillbeusedforinthefuture?(学生讨论完后，小组长要整理好答案汇报。教师抽查部分小组的答案，再归纳总结。)Step3Consolidation第三步巩固(时间:8分钟)1.(根据板书的关键词来复述1a，分男、女两组竞赛方式，激发学生的兴趣，熟悉所学的知识。)T:Boysandgirls,let’sbeginourcompetition.question.Girls:Thatwasabigquestionwhenwefirstexploredourworldlongago.T:explorers.Boys:Theearlyexplorersfoundthatthestarsintheskyweregoodlandmarks.T:findout.Girls:Usingthestars,theycouldfindoutwheretheywereandinwhichdirectiontheywere going.T:aslongas.Boys:Thismethodworkedwellatnightaslongastheweatherwasgoodandthestarscouldbeseen.T:problem.Girls: Butitdidn’tworksowellduringtherestofthetime.Thiswasaproblem.T:like.Boys:GPSislikeman-made“stars”.T:use.Girls:Wecanuseitatanytime,inanyplaceandinanyweathertofindoutourposition.T:shape.Boys:GPScanalsobeusedtostudytheshapeoftheearth.T:OK,youdidverywell.Boysandgirlsarebothexcellent.2.(归纳总结，回应呈现部分。)T:Now,wehaveknownGPSverywell.Ithinkyouhavefoundouttheanswertothequestion.S5,couldyoutellmewhythepolicecancatchthethiefeasily?S5:GPS.T:That’sright.Whenthethiefwasusingthecellphone,thepolicecouldusetheinformationGPSofferedtofindoutthepositionofthecellphone.SowecansayitwasGPSthathelpedthepolicecatchthethief.S6,whatdoyouthinkGPSwillbeusedforinthefuture?S6:Itcanbeusedtostudytheshapeoftheearth.T:Whatdoyouthinkofit,S7?S7:Wecanuseitatanytime,inanyplaceandinanyweathertofindoutourposition.T:OK,inshort,itisveryusefultous.(板书并且讲解。)inshortInshort,itisveryusefultous.Step4Practice第四步练习(时间:10分钟)1.(学生整理本话题的语言点、重点句型并放入到自己的“百宝箱”里。培养学生自主学习，动脑归纳的能力。)(语言点及重点句型)bemadeof/frombedeveloped/inventedin/bybeusedfordoingsomethingcometrueItissaidthat…DNAisthesameineverypartofyourbody.besimilartoNooneknowsforcertain.Theywillnolongerwanttobeourservants,butourmasters.aslongasInshort,thisrobotisveryusefultous.(学生做完后，教师进行抽查并指导。)2.(让学生听2a和2b的录音，并跟读。复习本话题语法及功能意念句。)3.(给出本话题中的功能意念句或其他重点句型，两人一组进行游戏。让一个学生说出一个句子的前一部分，另一个学生必须快速说出整个句子，然后交换分工。统计说完所有句子的时间，时间最短的为优胜者。)T:Boysandgirls,let’splayagame.Iwillgiveyousomeimportantsentencesofthistopicontheblackboard.Youplaythegameinpairs.Onesaysthefrontpartofasentence,theothersaysthewholesentenceasquicklyaspossible.Justlikethis:A:Iwish…B:IwishIcouldgointospacesomeday.Areyouclear?Ss:Yes.T:Whenonestudentfinishesallthesentences,changetheroles.Theonewhofinishesintheshortesttimeisthebest.OK,begin!(1)IwishIcouldgointospacesomeday.(2)Ihopeyourdreamwillcometrue.(3)Asyouknow,thereisDNAinmostlivingthings,includinghumanbeings.(4)Nooneknowsforcertain,butmostpeoplethinkthatrobotswillbepartofourlives.(5)In