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九年级上仁爱版英语Unit4Topic2Whenwasitdeveloped:jSectionD教案、、、、、、、、、、、、、、、、、、・・・•・・・•・•・・・.・.・•・.Themainactivitiesarelaand
3.本课重点活动是la和3I.Teachingaimsanddemands教学目标Learnnewphrasesandusefulexpressions:aslongasrunawayinshortInshortthisrobotisveryusefultous.Sumupthesimplepastpassivevoice.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IH.Five-fingerTeachingPlan五指教学方案Step1Review第一步复习(时间13分钟)(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:HowareyouboysandgirlsSs:Finethankyou.AndyouT:Vmverywell.Sofarwehavelearnedsomethingaboutthenewtechnologiesandinventionsintheworld.DoyourememberthemallSs:Yeswelearnedthelightbulbthecarthecellphone・•T:Veryclever.ButwhocantellmewhenthelightbulbwasinventedAndwhoinventeditSi Itwasinventedin
1879.S2TmnotsurebutitwasinventedbyThomasEdison.T:DoyouremembertheplarSs:Yes.T:WhenwasitinventedSs:Around
2008.T:WherewasitinventedSs:Imnotsure.MaybeitwasinventedinKangkangshome.T:OKverygood.(板书)WhenwasitinventedAround
2008.WherewasitinventedItwasinvented•••(出示手机的卡片)T:WhenwasthecellphoneinventedS3Itwasinventedin
1973.T:WherewasitinventedS4ItwasinventedinAmerica.(紧承上面的话题,以手机为切入点,导入新课)T:Cellphonesarewidelyusedallovertheworld.Itsreportedthatover93%offamiliesincitiesowncellphonesbutcellphonesarelosteasily.Haveyouwatchedthemovie“AWorldWithoutThievesvSs:Yes.T:InthemoviealotofcellphoneswerestolenbyLiuDehua”Nowadaysoneofthenewtechnologiescanbeusedtofindthelostcellphoneseasily.IsitamazingOKletsread1candthinkaboutthequestion:Whycouldthepolicecatchthethiefeasily(板书并解释)runaway逃跑,失控(一分钟后)HaveyoufinishedreadingDoyouwanttoknowtheanswerWellletsbeginthenewlesson.Step2Presentation第二步呈现(时间10分钟)(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-madestars”.Wecanuseitatanytimeinanyplaceandinanyweathertofindoutourposition.Theearlyexplorersusedthestarsaslandmarkstoknowwheretheywereandinwhichdirectiontheyweregoing.Butthismethodworkedwellatnightaslongastheweatherwasgood.(板书并解释)landmarkn.aslongas••-只要Thismethodworkedwellatnightaslongastheweatherwasgood.(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:BoysandgirlsjustnowItalkedsomethingaboutGPS.NowletslistentothetapetolearnapassageaboutGPSandunderlinethekeywords.(板书)questionexplorerslandmarksfindoutdirectionaslongasproblemlikeuseshape(让学生阅读la然后讨论下列问题,四人一组完成lb)Questions:WhatwouldyoudoifyoulostyourwayinaforestHowdidtheearlyexplorersknowwheretheywereWhatisGPSIsitusefultousWhatdoyouthinkGPSwillbeusedforinthefuture(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)(根据板书的关键词来复述1分男、女两组竞赛方式,激发学生的兴趣,熟悉所学的知识)T:Boysandgirlsletsbeginourcompetitionquestion.Girls:Thatwasabigquestionwhenwefirstexploredourworldlongago.T:explorers.Boys:Theearlyexplorersfoundthatthestarsintheskyweregoodlandmarks.T:findout.Girls:Usingthestarstheycouldfindoutwheretheywereandinwhichdirectiontheyweregoing.T:aslongas.Boys:Thismethodworkedwellatnightaslongastheweatherwasgoodandthestarscouldbeseen.T:problem.Girls:Butitdidntworksowellduringtherestofthetime.Thiswasaproblem.T:like.Boys:GPSislikeman-madestars”.T:use.Girls:Wecanuseitatanytimeinanyplaceandinanyweathertofindoutourposition.T:shape.Boys:GPScanalsobeusedtostudytheshapeoftheearth.T:OKyoudidverywell.Boysandgirlsarebothexcellent.(归纳总结,回应呈现部分)T:NowwehaveknownGPSverywell.Ithinkyouhavefoundouttheanswertothequestion.S5couldyoutellmewhythepolicecancatchthethiefeasilyS5:GPS.T:Thatsright.WhenthethiefwasusingthecellphonethepolicecouldusetheinformationGPSofferedtofindoutthepositionofthecellphone.SowecansayitwasGPSthathelpedthepolicecatchthethief.S6whatdoyouthinkGPSwillbeusedforinthefutureS6:Itcanbeusedtostudytheshapeoftheearth.T:WhatdoyouthinkofitS7S7:Wecanuseitatanytimeinanyplaceandinanyweathertofindoutourposition.T:OKinshortitisveryusefultous.(板书并且讲解)inshortInshortitisveryusefultous.Step4Practice第四步练习(时间10分钟)(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.Theywillnolongerwanttobeourservantsbutourmasters.aslongasInshortthisrobotisveryusefultous.(学生做完后,教师进行抽查并指导)(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)(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:Boysandgirlsletsplayagame.Iwillgiveyousomeimportantsentencesofthistopicontheblackboard.Youplaythegameinpairs.Onesaysthefrontpartofasentencetheothersaysthewholesentenceasquicklyaspossible.Justlikethis:A:Iwish…B:IwishIcouldgointospacesomeday.AreyouclearSs:Yes.T:Whenonestudentfinishesallthesentenceschangetheroles.Theonewhofinishesintheshortesttimeisthebest.OKbegin!
(1)IwishIcouldgointospacesomeday.
(2)Ihopeyourdreamwillcometrue.
(3)AsyouknowthereisDNAinmostlivingthingsincludinghumanbeings.
(4)Nooneknowsforcertainbutmostpeoplethinkthatrobotswillbepartofourlives.
(5)Inshortthisrobotisveryusefultous.Step5Project第五步综合探究活动(时间:4分钟)(设计一个机器人,并让学生写一篇有关自己设计的机器人的文章学生可参照以下问题完成3o)WhatdoesitlooklikeWhatsitsnameWhatcanitdoforusCanitthinkforitselfWhatareitsadvantagesanddisadvantagesHomework:Thinkitoverandmakeasimilarcardforyourrobot.Name:Inventor:Year:Use:板书设计:WhenwasitdevelopedSectionDGPStheGlobalPositioningSystemThismethodworkedwellatnightaslongastheweatherwasgood.Inshortitisveryusefultous.。