Unit10Whenwasitinvented？TheThirdPeriodⅠ．TeachingAimsandDemands1．KnowledgeObjects(1)KeyVocabularybulb,lightbulb,microwave,oven,microwaveoven,island(2)TargetLanguageWhatisthemicrowaveovenusedfor?Itisusedforcooking.2．AbilityObjectsTrainthestudents'writingandspeakingskillswiththetargetlanguage.3．MoralObjectsIfyouarealoneonatinyisland,whatinventionswouldyouliketohaveontheislandwithyou?Ⅱ．TeachingKeyPoints1．Talkaboutthehelpfulinventionsandannoyinginventions.2．Guidethestudentstodiscusstheiropinionsontheinventions.Ⅲ．TeachingDifficultPoints1．Discusstheopinionsontheinventions.2．Usethetargetlanguagetodescribetheinventions.Ⅳ．TeachingMethods1．Pairwork2．GroupworkⅤ．TeachingAidsSomepicturesofthehelpfulinventionsandannoyinginventions.Ⅵ．TeachingProceduresStepⅠRevision1．Revisethethreeinventionstalkedlastclass.Askaboutthenamesofthethreeinventions.Helpthestudentsanswer:shoeswithadjustableheelsbattery-operatedsneakersheatedicecreamscoopThenaskthetwoquestionsbelowoneachinvention:a.Whowasitinventedby?b.Whatisitusedfor?2．RevisethetargetlanguagewiththePassiveVoiceinGrammarFocusbyaskingseveralonestoreadthesentences.3．Checkthehomework.Dictatethewordsbelow:bulb,lightbulb,microwaveoven,islandStepⅡ3aThisactivityprovidespracticewithlistening,speaking,readingandwritingusingthetargetlanguage.Callthestudents'attentiontothethreepicturesofthreeinventions.Teachthemtoreadthenamesoftheinventions.Doitlikethis:T:Lookatthefirstpicture,please.Wecanseethenameunderthepicture.Nowreadafterme,alarmclock.Ss:Alarmclock.Dothesamewithlightbulbandmicrowaveoven.Thenreadtheinstructionstothestudents.Explainhelpfulinventionsandannoyinginventionstothestudentslikethis,showingapictureofavacuumcleaner,Avacuumcleanerishelpful.Thenshowapictureofatrucktotheclass.Averyloudtruckisannoying.Thenletthestudentslookatthethreepicturesinthetextbook.Askthesequestionsoneachinvention:1．Isthisinventionusefulorannoying?2．Whatisitusedfor?Thenaskthewholeclassaskandanswerthetwoquestionsaboveinpairs.Readtheinstructionstothestudentsagain.Pointtothechartinthetextbook.Tellthestudentstofillintheblankswithotherhelpfulandannoyinginventionsontheirown.Givetheclassaboutfiveminutestodothis.Astheywork,movearoundtheroomprovidingsomenamesofinventionstothemandansweringquestionsasnecessary.Pointoutthesampleanswerintheboxbeforetheystartwriting.Aftertheyhaveallfinished,asksomestudentstoreadtheiranswerstotheclass.Thengetthestudentstoworkwiththeirpartners.Haveeachstudenttalkabouttheirlistwithanotherstudent,askingeachotherquestions.Forexample,Whatisyourfirsthelpfulinvention?Whydoyouthinkitishelpful?SampleanswersHelpfulInventionsAnnoyingInventions1．bike1．recorder2．TVset2．guitar3．computer3．tractor4．plane4．loudspeaker5．umbrella5．mobilephoneStepⅢ3bThisactivityprovideslisteningandspeakingpracticeusingthetargetlanguage.Askthestudentstoreadtheinstructionstogether.Ithinkthemosthelpfulinventionisthecomputerbecauseithaschangedtheworldalot.Thenaskapairofthestudentstomodelthesampledialogue:SA:Whatdoyouthinkisthemosthelpfulinvention?SB:Ithinkthemosthelpfulinventionisthelightbulb.SA:Whyisthat?SB:Well,itgivespeoplemoretimetoworkandplayeveryday.Correctanypronunciationerrors.Makesuretheyareprovidingagoodmodel.Writetheconversationontheblackboard.Afterthat,gettheclasstoworkinpairsandcompletethework.PleasediscussyouropinionsinActivity3awithyourpartnern...
