Unit3Computers教案新部編本1

精選教課教課設(shè)計設(shè)計|Excellentteachingplan教師學(xué)科教課設(shè)計[20–20學(xué)年度第__學(xué)期]任教課科：_____________任教年級：_____________任教老師：_____________市實驗學(xué)校育人好像春風(fēng)化雨，授業(yè)不惜蠟炬成灰精選教課教課設(shè)計設(shè)計|ExcellentteachingplanUnit3Computers教課設(shè)計1WHOAMI?<PART1>)IntroductionInthisperiod,afterthewarmingup,studentswillfirstbeguidedtoimagineandsharetheirviewsaboutthetechnology.TheywillthenbehelpedtoreadanarrationentitledWHOAMI.Examplesof“WarmingUp”designsarepresentedinthisbookforteachers’reference.Compuandoverheadprojectormaybeusedtoaidtheteachingandlearning.ObjectivesTotalkaboutcomputerToreadaboutcomputerFocusWordssimplify,sum,operator,logically,solve,reality,personal,network,finance,applications,exploreExpressionstechnologicalrevolution,artificialintelligence,asaresult,anyhowPatternsFromthenon,Igrewrapidlybothinsizeandinbrainpower.AsaresultItotallychangedmyshape.Overtimemymemoryhasdevelopedsomuchthat,likeanelephant,IneverforgetanythingIhavebeentold!AidsMultimediafacilities,tape-recorder,photos,diagrams育人好像春風(fēng)化雨，授業(yè)不惜蠟炬成灰精選教課教課設(shè)計設(shè)計|ExcellentteachingplanProceduresI.Warmingup1.WarmingupbytalkingaboutcomputerLookatthepicturesonpage17.Whatarethey?Whatdotheyhaveincommon?Yes,theyarecomputers.Thenwhatisacomputer?Acomputerisamachinewhichstoresknowledgeinitsmemoryanddoescalculationsonthatknowledge.Thisknowledgeisstoredinsymbols;itiscalleddata.Acomputerusuallyhasamonitortoshowresults.However,somecomputerscanspeak;thesecomputerscanbeusedforvoicemail.計算機室Acomputerfrequentlyrequiresabootdevice.Thebootdevicecontainsthecomputer’soperating育人好像春風(fēng)化雨，授業(yè)不惜蠟炬成灰精選教課教課設(shè)計設(shè)計|Excellentteachingplansystemanddata.Computerprogramscanbeinstalledontoacomputer.SomepeoplethinkthatcomputersarelessusefuliftheydonothaveaccesstotheInternet.TheythinkthisbecausetheInternetallowsthecomputerstosendandreceivedataandemailacrosstheworld.曙光3000巨型計算機Acomputerisnowalmostalwaysanelectronicdevice.Itusuallycontainsmaterialswhicharetoxic;thesematerialswillbecometoxicwastewhendisposedof.Whenanewcomputerispurchasedinsomeplaces,lawsrequirethatthecostofitswastemanagementmustalsobepaidfor.Thisiscalledproductstewardship.Insomecountriesoldcomputersarerecycled(melteddown)togetgoldandothermetals.Thisisdangerous,becausethisprocedurereleasesthetoxicwasteintothewaterandsoil.Computersbecomeobsoletequickly.Veryoftentheyaregivenawayandnewonesreplacethem育人好像春風(fēng)化雨，授業(yè)不惜蠟炬成灰精選教課教課設(shè)計設(shè)計|Excellentteachingplanwithintwoorthreeyears.Thismakestheproblemworse.Computerrecyclingisthuscommon.Manyprojectstrytosendworkingcomputerstodevelopingnationssotheycanbere-usedandwillnotbecomewasteasquickly.育人好像春風(fēng)化雨，授業(yè)不惜蠟炬成灰精選教課教課設(shè)計設(shè)計|ExcellentteachingplanComputerjargon計算機行話Computerjargonmeanswordstodowithcomputersandsurroundingtopics.Knowingwhatthesewordsmeancanhelpyouknowmoreaboutcomputers.Somepeopleusethesewordstoimpressotherpeople(Alsoknownasbuzzwords).Examplesofjargon:Bit-Thesmallestdataunit,caneitherbea“0.”ora“1.”.Byte-unitofdata.SeealsoKilobyte,Megabyte,GigabyteandNibbleCPU–CentralProcessingUnit,AnothernameforprocessorData-InformationstoredonacomputerDisk-Aplacetostoredata.Email-Electronicmail.GHz-Gigahertz.Usedoftenincorrectlytodescribethespeedofaprocessor.Butwithsome2.4GHzprocessorsfasterthan3.6GHzones,itisclearthatitisjustasalesmantrick.Load-GetdatafromadiskNibble-HalfaByteSave-PutdataonadiskRAM–random-accessmemory(隨機存取儲藏器),themorethebetter.USB-UniversalSerialBus（通用串行總線，一種簡化了插接多種附件的薄型插座）WWW-WorldWideWeb,partoftheInternetII.Pre-reading1.QuestioningandansweringWhatdoyouknowaboutcomputer?Electronicmachinecapableofperformingcalculationsandothermanipulationsofvarioustypesofdata,underthecontrolofastoredsetofinstructions.Themachineitselfisthehardware;theinstructionsaretheprogramorsoftware.Dependinguponsize,computersarecalledmainframes,minicomputers,andmicrocomputers.Microcomputersincludedesk-topandportablepersonalcomputers.Amulti-functionelectronicdevicethatcanexecuteinstructionstoperformatask.Adevicethatacceptsinformation,processesit,andsuppliesanoutput.Acomputerusuallycontainsmemory,acontrolunit,arithmeticandlogicalunits,andameansforinputandoutput.育人好像春風(fēng)化雨，授業(yè)不惜蠟炬成灰精選教課教課設(shè)計設(shè)計|ExcellentteachingplanAprogrammablehardwarecomponentthatiscontrolledbyinternallystoredprogramsandthatcanperformsubstantialcomputations(includingarithmeticandlogicoperations)withouthumanintervention.Acomputertypicallyconsistsofoneormoreprocessingunits,memoryunits,andassociatedperipheralinputandoutputdevices.Relatedtoautomationandelectronicdataprocessing.TheLibraryofCongresscommonlyclassesmostcomputer-relatedbooksinHF5548,QA75-76,Z52,T385,andsomeTKranges.Amachineforperformingcalculationsautomaticallycalculator:anexpertatcalculation(oratoperatingcalculatingmachines)Acomputerisadeviceormachineformakingcalculationsorcontrollingoperationsthatareexpressibleinnumericalorlogicalterms.Computersareconstructedfromcomponentsthatperformsimplewell-definedfunctions.Thecomplexinteractionsofthesecomponentsendowcomputerswiththeabilitytoprocessinformation.Ifcorrectlyconfigured(usuallyby,programming)acomputercanbemadetorepresentsomeaspectofaproblemorpartofasystem.Ifacomputerconfiguredinthiswayisgive2.DiscussingandsharingHowhavecomputerschangedourlives?Somedaysoon,ifyouhaven’already,tyou’relikelytoplugintothecomputernetworknationgrowinginourmidst.Computerterminals,orsmallcomputersconnectedviamodem(amodulator/demodulatorcircuitforencoding/decodingcomputerchatter)toordinarytelephonelines,shouldbeasubiquitousasthetelephoneitself.They’reamuchmoreusefulandhumanetothanthephone,andwithcorporateAmericabehindthemthenetworkswillbeeverywherechangingourlivesmorethananytechnologysincetheautomobile.Joiningacomputernetworkisthesameasjoiningacommunity.Smallsystemsarelikevillages,wherenewmembersareformallywelcomed.Thelargernetworks,theSourceandCompuServe,forexample,arecities-anonymous,fulloflifeandevents,butdifficulttofitinto.III.Reading1.ListeningandreadingtotherecordingofthetextWHOAMI?Turntopage18andlistenandreadtotherecordingofthetext.Payattentiontothepauses,pronunciationandintonationofthenativereader.2.Readingaloudandunderliningexpressions育人好像春風(fēng)化雨，授業(yè)不惜蠟炬成灰精選教課教課設(shè)計設(shè)計|ExcellentteachingplanNowwearetoreadthetextonceagainandunderlinealltheexpressionsinthetext.Putthemdownintoyournotebookafterclassashomework.CollocationsfromWHOAMI?beginas,acalculatingmachine,bebuiltas,followinstructionsfrom,soundsimple,atthetime,atechnologicalrevolution,writeabook,makework,solveproblems,becomehuge,hadartificialintelligence,gobackto,thesizeof,goby,changbecomesmallandthin,getquick,standtherebyoneself,beconnectedby,shareinformationby,talkto,bringinto,dealwith,communicatewith,servethehumanrace3.Reading,identifyingandsettlingAttention,please!Itistimetoskimthetextonemoretimeandidentifythedi