《Unit4Topic2SectionA》教案Ⅰ.Teachingaimsanddemands1.Learnsomenewwords:metal,toothbrush,ink,recorder2.Learnsomeusefulsentences:—What’sitmadeof/from?—It’smadeof/from…—What’situsedfor?—It’susedfor…3.Learnthesimplepastpassivevoice:(1)—Whenwasitdeveloped?—Around1998.(2)—Wherewasitdeveloped?—ItwasdevelopedinKorea.4.Learnhowtoexpresshopesandwishes:(1)IwishIcouldgointospacesomeday.(2)Ihopeyourdreamwillcometrue.5.Talkaboutnewtechnologiesandinventions.Ⅱ.TeachingprocedureStep1.GreetingStep2.Revision1.RevisethenewwordsinSectionA(Wordscompetition)1)火箭rocket2)金属metal3)卫星satellite4)牙刷toothbrush5)墨水ink6)录音机recorder7)数字，数码的digitalStep3.Presentation1.Showtwopictures,acomputerdeskandapieceofpaper.Askandanswer.Masterthephrases“bemadeof”,“bemadefrom”and“beusedfor”.T:What'sthisinEnglish?Ss:It’sacomputerdesk.T:What'sitmadeof?Ss:It’smadeofwood.T:What’situsedfor?Ss:It’susedforholdingacomputer.2.Talkaboutthepictureofapaper.Teachthephrase“bemadefrom”inthesamewayandaskstudentstolearnandmasterit.Letstudentscomparethetwophrases,andhelpthemsumuptheusagesanddifferencesbetweenthem.bemadeof+材料：表示原材料容易被看出。bemadefrom+材料：表示原材料经过化学变化，不易被看出。3.DialoggamesT:OK,let’simitatetheexamplesin1btomakesimilarconversationsandfinish1b.youcanchooseonepicturefromAtoHtodopairwork.Actthemoutinthefrontoftheclassroom.LetSspayattentiontheprepositions.A.toothbrush/plastic/brushteethB.redwine/grapes/drinkC.ruler/steel/measureD.sweater/cotton/keepwarmE.towel/cotton/cleanfaceF.ink/carbon/writeinG.lift/iron/goupanddownH.bed/iron/sleep4.Letstudentslistento1aandunderlinethesentenceswiththepassivevoice.Answertwoquestions.1)What’sitmadeof?2)Doyouknowwhatitisusedfor?5.Letstudentsread1aandleadthemtofindoutthekeysentencesandthedifficultlanguagepointsin1a.Theteacherexplainsthem.Forexample:1)I’mnotallowedtoplaycomputergames.2)IwishIcouldgointospacesomeday.3)Ihopeyourdreamwillcometrue.Step4Consolidation1.T:Listentothetapecarefullyandfinishthetable.Answerthefollowingquestions.1)Whenwasitdeveloped?2)Wherewasitdeveloped?3)What’situsedfor?2.Finish2b.Step5Practice1.Workinpairs.Letstudentsread2aandactitout.2.Letstudentsobservethedifferencesbetweenthesentencepattern“Itisusedfor…”andthesentencepattern“Itwasdevelopedin…”.Leadtothepastpassivevoice.Letstudentsmasterthesentencepatterns“Whenwasitdeveloped?”and“Wherewasitdeveloped?”was/were+Vpp.ItwasdevelopedinKorea.Thebridgewasbuiltin1990.Thecupwasusedinolddays.3.T:Read2a,andunderlinethekeywords.anMP3player,beusedfor,helpustoimproveourEnglish,develop,around1998,Korea,moreuseful,recorder,buy4.Workinpairs.Letstudentsusethecontentof2btomakedialogssimilarto2aandpracticetheusageofthesimplepastpassivevoice.Actthemout.Finish2b.T:HowdoyousayitinEnglish?Ss:Digitalcamera.T:Whenwasitdeveloped?Ss:Itwasdevelopedin1975.T:Wherewasitdeveloped?Ss:ItwasdevelopedinAmerica.T:What’situsedfor?Ss:It’susedfortakingphotos.T:Doyouunderstand?Practicethedialogswithyourpartner.Let’sbegin.…5.DosomeexercisesI.Choosetherightanswers.Youcandoit.()1.He___playcomputergamesunlesshefinishedhishomework.A.wasallowedtoB.wasnotallowedtoC.allowto()2.Weallknowthatpaper___wood.A.ismadeofB.ismadeintoC.ismadefrom()3.Thiskindofmachine___in2006.A.isinventedB.ismadeC.wasinvented()4.A(An)___isusedfortakingphotos.A.CameraB.LiftC.MP3player()5.Weshouldspendmo...
