九年级全一册Unit6WhenwasitinventedUnit6Whenwa

Unit6Whenwasitinvented?SectionA1(la-2d)一、教学目标：.学习关于发明的单词。.能听懂并能简单地谈论发明史。.通过开展小组学习活动，能正确地使用一般过去时的被动语态，了解中美发明史的差异，更好地理解人类发明文化中的瑰宝。.通过交流表达和听力训练，引入一般过去时的被动语态“was/were+done”。,了解中美发明史的差异，更好地理解人类发明文化中的瑰宝。二、教学重难点.教学重点：1)本课时的单词、词组和句型，学习运用一般过去时态的被动语态。2)学会询问发明时间及用途的基本句型：一Whenwasthetelephoneinvented?一Ithinkitwasinventedin1876.一Whataretheyusedfor?一Theyareusedforseeingatnight..教学难点：运用一般过去时态的被动语态来讨论发明的发明时间及用途。三、教学过程Presentationinvent也发明inventorn.发明家inventionn.发明.Edison,agreatinventor,inventedmanygreatinventionsduringhislife.Warmingup1.展示一些近代发明的图片与近代发明的发明者，让学生们将图片与发明者相连。T:Doyouknowwhattheseinventionsare?It'sacar.It'satelephone.It'satelevision.T:Doyouknowwhotheseinventorsare?KarlBenzAlexanderBellJ.L.BairdLetSsmatchtheinventionsandtheinventors.Presentation通过图片引导学生们学习一般过去时态的被动语态结构。如：KarlBenzinventedthefirstcarin1885.Thefirstcarwasinvented(byKarlBenz)in1885.TalkingLookatthepicturesinla.Discusswithyourgroup,inwhatorderdoyouthinktheywereinvented?Trytonumberthem[1-4].Ssdiscusswiththeirpartnersandnumberthepictures.Talkingabouttheinventions:IthinktheTVwasinventedbeforethecar.Idon'tagreewithyou.IthinktheTVwasinventedafterthecar.V.Listening(lb)T:TellSslookatthepicturesandyearsontheleft.Finishlb.ListentothedialogueagainandpayattentiontoPassivevoice(pasttense)inthelisteningtext.Unit6Whenwasitinvented?SectionlbAlice：Unit6Whenwasitinvented?SectionlbAlice：Wasyourlifeverydifficultwhenyouwereakid?Grandma：OhFnotreallyWhy?Alice：Well,youdidn'thavemodeminventionslikeatelephone,right?Grandma：Ofcoursewedid!HowolddoyouthinkIam?Thetelephonewasinventedin1876,Youneedtotakeahistoryclass；Alice!Alice：Haha!Howaboutcars?Theyweren'tinventedyet,werethey?Grandma：Yes,theywere.Carswereinventedin1885.Myfamilyhadacar.Alice：Well,didyouhaveaTV?Grandma:No,wecouldntafibrdone.Theywereexpensiveinthosedays.TheTVwasinventedaround1927,1think.Alice:Well,Iknowthatyoudidn'thaveacomputerbecausewelearnedinschoolthatpersonalcomputerswereinventedin1976.Grandma：Youreright.ButIhaveonenow!Sstrytoremembertheinventionandtheyear.StudentB,coverthedates.StudentA,askStudentBwhenthethingsinthepictureinlbwereinvented.Thenchangerolesandpracticeagain.Letsomestudentsaskandanswerinpairs..A:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.VII.Listening(2a)Workon2a:T:TellSstheywillhearsomeinterestinginventions.Lookatthepicturesin2a.Discussthethingswhattheyareusedfor.PlaytherecordingfortheSstolistenandnumberthepictures.Playtherecordingagaintochecktheanswers.Workon2b:LetSsreadthechartbelow.ExplainsomemainsentencesfortheSs.Playtherecordingthenfillintheblanks.Playtherecordingagainandchecktheanswers.Listenagainandpayattentiontothestructure“beusedfor”.SectionA,2a,2bAlex:Hi,Carol.Wbw,whatarethose?Carol：Hello,Alex.Oh,thesearesomeoftheinterestinginventionsthatImwritingaboutformyEnglishhomework.Alex：Isee-What'sthat,then?getupatnightAlex：Oh,thatsacoolidea!IalwayshitmytoeonsomethingonthewaytothebathroomatnightgetupatnightAlex：Oh,thatsacoolidea!IalwayshitmytoeonsomethingonthewaytothebathroomatnightCarol：Nextisaspecialice-creamscoop.Thisismyfavoriteinvention.Itrunsonelectricityandbecomeshot.Akx：Iknowwhatitsfor!Itsusedforservingreallycoldice-cream.Carol：Yes,thatsright!ThelastinventionI'mgoingtowriteaboutisshoeswithspecialheels.Youcanmovetheheelsupanddown.Alex：Whataretheyusedfor?Carol：Well,youcanchangethestyleofyourshoes.Youcanraisetheheelsifyouaregoingtoapartyor