人教新目標(biāo)版九上英語Unit6SectionA（2a-2d）【教案】

Unit6Whenwasitinvented?SectionA（2a-2d）TeachingAims1.語言能力：了解發(fā)明的用處。2.文化意識：懂得發(fā)明的重要性。3.思維品質(zhì)：學(xué)會表達(dá)發(fā)明被用作什么。4.學(xué)習(xí)能力：用一般過去時的被動語態(tài)談?wù)摪l(fā)明的歷史。TeachingDifficulties用一般過去時的被動語態(tài)談?wù)摪l(fā)明的歷史。TeachingAidsmultimediacoursewareorotherrealiathattheTneedsforteachingTeachingProceduresTipsStep1WarmingupGiveSsacontextandaskthemtothinkaboutsolutionsfortheproblems.Whatinventionscanyoumaketosolvetheseproblems?1.Youalwayshityourtoeagainstsomethingonthewaytosomewhereatnight!2.Youwantedtogetascoopofice-creamfromthebucket,buttheice-creamwastoohard!Step2Presentation&PracticePre-listeningShowSsPPTP9,askthemtolookatthepictureandanswerthequestions.1.Whatcanyouseeonthetable?2.Whatistheboydoing?3.Whatisthegirldoing?4.Whatisthescoopusedfor?5.Whataretheshoesusedfor?While-listening2aPlaytherecording,askSstolistenandnumbertheinventionsintheordertheyhear.Answers:3shoeswithspecialheels1shoeswithlights2hotice-creamscoop,runsonelectricity2bPlaytherecordingagain.AskSstolistenandcompletethechart.Answers:1.changing2.inthedark3.servingOptionalchoice:AskSstolistenagainandanswerthequestions.1.Whyareshoeswithlightsneededbypeople?2.Whyisthehotice-creamscoopneededbypeople?3.Howisthestyleofshoeschanged?Post-listening2cInpairs,getSstospeakwitheachotherabouttheinventionsmentionedin2aand2b.AskSstomaketheirconversationsmoreinterestingbycomingupwithmoreusesforthethreeinventions.(Tip:EachSshouldcomeupwithonealternativeuse.)Optionalchoice:Showmoreinterestinginventions(PPTP16-20)toSsandaskthemtotelltheusageforeach.Step3Presentation&ReadingPre-readingShowapictureofzipperandaskwheretheycanseeit.GivesomeexamplestoSs(backpack,jacket,wallet,keychain)andencouragethemtothinkaboutmorethingswithzippers.While-readingAskSstoreadtheconversationin2dandanswerthequestions.1.Whoinventedthezipper?2.Whenwasthezipperinvented?3.Whenwasitfirstusedwidely?PlaythevideoforSs.Askthemtorole-playtheconversation.Post-readingAskSstothinkandanswerthequestions:Arethereanyotherinventionsthathavegreatinfluenceonpeople’slives?Howdotheychangepeople’slives?(Tip:Tcanalsotreatthesequestionsasaproject.TcanaskSstoworkingroups,lookupsomeinformationabout“inventionswhichhaveinfluenceonpeoplelives”onnetandmakeapresentationinnextclass.)Step4Languagepointslearningbeusedforsth./doingsth.意為“被用來做某事”，表示用途或目的，后接名詞或動名詞，相當(dāng)于beusedtodosth.beusedfor,beusedby和beusedas的區(qū)別是：beusedfor意為“用來做”，后面跟名詞、代詞或者是v-ing形式，表示目的、用途，相當(dāng)于beusedtodosth。beusedby意為“被使用者”，后面跟使用者。beusedas意為“被當(dāng)做使用”。Mypleasure也可說成It’sa/mypleasure.或Apleasure.意思是“我的榮幸；愿為你效勞；這是件愉快的事”。mention表示“提到；提及”，是及物動詞，其后接名詞或代詞作賓語時，無需用任何介詞；另外注意不接雙賓語。若后接動詞，要用動名詞，不能用不定式。nottomention意為“更不用說；還不算”?？谡Z中說Don’tmentionit.主要用來回答感謝，有時也用來回答道歉。Step5Summary&HomeworkSummaryAskSstodotheexercisesonPPTP35.Homework:Previewthepassagein3a.Dotheexercisesinstudents’book.TeachingReflectionInthislesson,themostimportantthingistolearnthepassivevoiceinthepasttenseandteachstudentspastparticipleforms.We