高二英语教案：人教版高二Unit18Inventions.docx

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1、人教版高二Unit18InventionsPeriod1Let’slistenandspeak!Goals●Helpstudentsunderstandthecommonsenseaboutinventions.●Dolisteningandmakesurestudentsunderstandit.●Helpimprovethestudents’listeningandspeakingabilities.ProceduresLeadinginbyguessing.Today,wearegoingtolearnsomethingaboutinventionsthatwilld

2、ogoodtohumanbeingsorevensmoothawaydifficultiesbroughtbydisabilities.Herearesomeofthem.Pleaseguesswhattheyareorwhotheinventorsare.1.amanwhomademorethan1,000inventionsinhislifeandinventedelectricbulbs2.awomanwhodiscoveredawaytoalterandexpandtherangeofnaturalcottoncolorswithoutusingtintsordye

3、s3.acomputerthatfitscomfortablyonyournoseandweighslessthanapairofglasses4.amanbornin1876whoinventedaneffectivegasmotorengineandbuiltthefirstpracticalfour-strokeinternalcombustionenginecalledthe“OttoCycleEngine”5.ashoewhoseheelsmadeelectricitywitheverystepthewearertakesKey:1.ThomasAlvaEdiso

4、n2.SallyFox3.Nose-topcomputer4.NicolausOtto5.ElectricshoesTolearnmoreaboutinventionspleaseturntopage57orlookatthescreen.Task1:Lookinganddiscussing.Lookatpage57orthescreen.Therearefourpicturesandfourdescriptions.Readthedescriptionsindividuallyfirstandthenmatcheachpicturewiththecorrectdescri

5、ption.Picture1:Electricshoes第1页共9页Picture2:InflatablebicyclePicture3:EdiblechopsticksPicture4:Nose-topcomputerTask2:Discussing.Nowdiscussthefollowingquestionsinpairs:1.Whichofthefour“invention”doyouthinkwouldbemoreuseful?Why?2.Isthereanythingyouwouldliketoinvent?Ifso,whatandwhy?Task3:Liste

6、ningandansweringquestions.1.Nowwearegoingtolistentodialogue1onthetape,whichisaboutMr.DeanListencarefullyandtrytounderstandit.Thenyoushouldanswerthefollowingquestions:1)WhataretheadvantagesofMr.Dean’snewinvention?2)Howdoesitwork?3)Whatcanitbeusedfor?4)Whydoesthepatentofficernotwanttogivethe

7、manapatent?2.Listentothetapeofdialogue2,whichisaboutMr.Scolesinventionandthenanswer’thefollowingquestions:1)WhathasMr.Scolesinvented?2)Whydidthemaninventit?3)Doyouthinkitworks?Howdoesitwork?4)Whydoesthepatentofficernotwanttogivethemanapatent?Task4:Speakingup.I