2019-2020年高中英语Unit3Computer教案新课标人教版必修2

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1、2019-2020年高中英语Unit3puter教案新课标人教版必修2PartOne:TeachingDesign(第一部分：教学设计)Period1:Asamplelessonplanforreading(WHOAMI?)AimsTotalkaboutputerToreadaboutputerProceduresI.WarmingupWarmingupbytalkingaboutputerLookatthepicturesonpage17.Whatarethey?Whatdotheyhaveinmon?Yes,theyareputers.Thenwhat

2、isaputer?Aputerisamachinewhichstoresknowledgeinitsmemoryanddoescalculationsonthatknowledge.Thisknowledgeisstoredinsymbols;itiscalleddata.Aputerusuallyhasamonitortoshowresults.However,someputerscanspeak;theseputerscanbeusedforvoicemail.计算机室Aputerfrequentlyrequiresabootdevice.Theboo

3、tdevicecontainstheputer’soperatingsystemanddata.puterprogramscanbeinstalledontoaputer.SomepeoplethinkthatputersarelessusefuliftheydonothaveaccesstotheInternet.TheythinkthisbecausetheInternetallowstheputerstosendandreceivedataandemailacrosstheworld.曙光3000巨型计算机Aputerisnowalmostalway

4、sanelectronicdevice.Itusuallycontainsmaterialswhicharetoxic;thesematerialswillbeetoxicwastewhendisposedof.Whenanewputerispurchasedinsomeplaces,lawsrequirethatthecostofitswastemanagementmustalsobepaidfor.Thisiscalledproductstewardship.Insomecountriesoldputersarerecycled(melteddown)

5、togetgoldandothermetals.Thisisdangerous,becausethisprocedurereleasesthetoxicwasteintothewaterandsoil.putersbeeobsoletequickly.Veryoftentheyaregivenawayandnewonesreplacethemwithintwoorthreeyears.Thismakestheproblemworse.puterrecyclingisthusmon.Manyprojectstrytosendworkingputerstode

6、velopingnationssotheycanbere-usedandwillnotbeewasteasquickly.puterjargon计算机行话puterjargonmeanswordstodowithputersandsurroundingtopics.Knowingwhatthesewordsmeancanhelpyouknowmoreaboutputers.Somepeopleusethesewordstoimpressotherpeople(Alsoknownasbuzzwords).Examplesofjargon:Bit-Thesma

7、llestdataunit,caneitherbea“0.”ora“1.”.Byte-unitofdata.SeealsoKilobyte,Megabyte,GigabyteandNibbleCPU–CentralProcessingUnit,AnothernameforprocessorData-InformationstoredonaputerDisk-Aplacetostoredata.Email-Electronicmail.GHz-Gigahertz.Usedoftenincorrectlytodescribethespeedofaprocess

8、or.Butwithsome2.4GHzprocessorsfas