九年级英语上册 unit 4 topic 2 when was it developed section d教案 仁爱版

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1、九年级上仁爱版英语Unit4Topic2WhenwasitdevelopedSectionD教案Themainactivitiesare1aand3.本课重点活动是1a和3。Ⅰ.Teachingaimsanddemands教学目标1.Learnnewphrasesandusefulexpressions:aslongas,runaway,inshortInshort,thisrobotisveryusefultous.2.Sumupthesimplepastpassivevoice.3.Talkaboutnewtechnologiesandinventions.Ⅱ.Teachinga

2、ids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?T:I’mverywell.Sofar,wehavelearnedsomethingaboutthenewtechnologiesandinventionsintheworld.Doyour

3、ememberthemall?Ss:Yes,welearnedthelightbulb,thecar,thecellphone…T:Veryclever.Butwhocantellmewhenthelightbulbwasinvented?Andwhoinventedit?S1:Itwasinventedin1879.S2:I’mnotsure,butitwasinventedbyThomasEdison.T:Doyouremembertheplar?Ss:Yes.T:Whenwasitinvented?Ss:Around2008.T:Wherewasitinvented?Ss:I’

4、mnotsure.MaybeitwasinventedinKangkang’shome.T:OK,verygood.(板书)Whenwasitinvented?Around2008.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:Cellphonesarewidelyusedalloverthewo

5、rld.It’sreportedthatover93%offamiliesincitiesowncellphones,butcellphonesarelosteasily.Haveyouwatchedthemovie“AWorldWithoutThieves”?Ss:Yes.T:Inthemovie,alotofcellphoneswerestolenby“LiuDehua”.Nowadays,oneofthenewtechnologiescanbeusedtofindthelostcellphoneseasily.Isitamazing?OK,let’sread1candthink

6、aboutthequestion: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

7、球的，世界的GPS=theGlobalPositioningSystemGPSislikeman-made“stars”.Wecanuseitatanytime,inanyplaceandinanyweathertofindoutourposition.Theearlyexplorersusedthestarsaslandmarkstoknowwheretheywereandinwhichdirectiontheyweregoing.Butthismeth