高中英语 Unit 3 Inventors and inventions教案 新人教版选修8.doc

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1、Unit3　Inventorsandinventions【美文阅读】　Wirelesschargingformobilephonesby2012近日，日本的富士通公司宣布，他们开发出了一套能为手机等便携式电子设备无线充电的系统。Fujitsu，aJapanesetechnologycompany，hascreatedasystemcapableofsimultaneously(同时地)chargingmanyportableelectronicdevicessuchasmobilephones，digitalcamerasandlaptopswitho

2、uttheneedforcable(电缆)connections.ElectriccarusersmayalsoeventuallybeabletochargetheirvehicleswirelesslyusingthesametechnologyaccordingtoFujitsu，whichdisplayedamodelsystematanInstituteofElectronics，InformationandCommunicationEngineersconference.Claimingtobetheworld'sfirstofitskin

3、d，thetechnologyworksonthebasisofthetransmissionofelectricityusingmagnetic(磁的)fieldsbetweenthechargerandtheelectronicdevice.Thesystemmakesitpossibletochargewirelesslyatdistancesofuptoseveralmeters，andFujitsuaimstoprovidepublic“chargingspots”onthestreetsinordertoprovideeasychargin

4、gdayandnight.ScientistsatFujitsuLaboratoriesareplanningtocommerciallysellproductscombiningthenewwirelesschargingsystemasearlyas2012.MobilephoneusersinJapancancurrentlychargetheirbatteriesusingportablebatterydevicesavailableatmosttrainstationsandconveniencestores－althoughphonecom

5、panieswarnthiscandamagethephones.ThenewsysteminventedbyFujitsu，however，ismuchmoreadvancedandrepresentsthenextgenerationofportablerechargingsystemsusingflexiblewirelesstechnology.Thecompanyadded，“Wearealsolookingatapplyingtheresultsofthisworktofieldsotherthanportableelectronics，i

6、ncludingpowertransmissionbetweencircuitboards(电路板)orcomputerchips，andprovidingmobilechargingsystemsforelectriccars.”【诱思导学】　1．Howdoesthewirelesschargingtechnologywork?____________________________________________________________________________________________【答案】　Itworksonthebasi

7、softhetransmissionofelectricityusingmagneticfieldsbetweenthechargerandtheelectronicdevice.2．Whencanconsumersprobablybuyproductsusingthenewwirelesschargingsystem?______________________________________________【答案】　Asearlyas2012.PeriodⅠPreviewing(教师用书独具)●教学目标本课时主要是通过学生对学案所给出的内容的学习，

8、了解本课文中所出现的词汇，初步了解课文以及相关的背景知识，为下一堂课对课文的全面理解起到一个铺