Unit18 Inventions Unit18 Inventions教案 Unit18 Inventions教案

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1、Unit18InventionsPeriod1Let’slistenandspeak!Goals●Helpstudentsunderstandthecommonsenseaboutinventions.●Dolisteningandmakesurestudentsunderstandit.●Helpimprovethestudents’listeningandspeakingabilities.ProceduresLeadinginbyguessing.Today,wearegoingtolearnsomethingaboutinventionsthatwilldogoodtohumanbe

2、ingsorevensmoothawaydifficultiesbroughtbydisabilities.Herearesomeofthem.Pleaseguesswhattheyareorwhotheinventorsare.1.amanwhomademorethan1,000inventionsinhislifeandinventedelectricbulbs2.awomanwhodiscoveredawaytoalterandexpandtherangeofnaturalcottoncolorswithoutusingtintsordyes3.acomputerthatfitscom

3、fortablyonyournoseandweighslessthanapairofglasses4.amanbornin1876whoinventedaneffectivegasmotorengineandbuiltthefirstpracticalfour-strokeinternalcombustionenginecalledthe“OttoCycleEngine”5.ashoewhoseheelsmadeelectricitywitheverystepthewearertakesKey:1.ThomasAlvaEdison2.SallyFox3.Nose-topcomputer4.N

4、icolausOtto5.ElectricshoesTolearnmoreaboutinventionspleaseturntopage57orlookatthescreen.Task1:Lookinganddiscussing.Lookatpage57orthescreen.Therearefourpicturesandfourdescriptions.Readthedescriptionsindividuallyfirstandthenmatcheachpicturewiththecorrectdescription.Picture1:ElectricshoesPicture2:Infl

5、atablebicyclePicture3:EdiblechopsticksPicture4:Nose-topcomputerTask2:Discussing.Nowdiscussthefollowingquestionsinpairs:1.Whichofthefour“invention”doyouthinkwouldbemoreuseful?Why?2.Isthereanythingyouwouldliketoinvent?Ifso,whatandwhy?Task3:Listeningandansweringquestions.1.Nowwearegoingtolistentodialo

6、gue1onthetape,whichisaboutMr.Dean’snewinvention.Listencarefullyandtrytounderstandit.Thenyoushouldanswerthefollowingquestions:1)WhataretheadvantagesofMr.Dean’snewinvention?2)Howdoesitwork?3)Whatcanitbeusedfor?4)Whydoesthepatentofficernotwanttogivethemanapatent?2.Listentothetapeofdialogue2,whichisabo

7、utMr.Scoles’inventionandthenanswerthefollowingquestions:1)WhathasMr.Scolesinvented?2)Whydidthemaninventit?3)Doyouthinkitworks?Howdoesitwork?4)Whydoesthepatentofficernotwanttogivethemanapatent?Task4:Speaking