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Welcome1.Iamamachinewhichisagoodhelperindoinghousework.Iwashclothesforpeople.WhoamI?washingmachine2.Amachinethatyouusetotalktootherpeopleeveninafar-awayplace.Weareconnectedbywireorradio.Noweachofusoftenhasanumber.WhoamI?telephoneGuessing3.Iamamachine,whichyoucanusetoplaygames,watchmovies,listentomusic,communicatewithyourfriends,gatherinformation…WhoamI?AcomputerNowadayscomputersplayaveryimportantroleinourdailylife.Whatdoyouknowaboutcomputers?keyboard键盘mouse鼠标monitor显示器screen屏幕speaker音响mainframe主机WhatEnglishwordsdoyouknowaboutcomputers?quizNewwordsandexpression数学的计算器信息技术个人电脑依...看,据...认为优点缺点算盘掌上电脑.InformationTechnologyPersonalComputeradvantagedisadvantageabacuspalmtopInone’sopinionMathematicalCalculator(n.)IntelligenceAnalyticalmachineUniversalmachineTransistorArtificialintelligenceTechnologicalrevolutionfunction智力分析机通用机晶体管人工智能科技革命功能NewWordsandExpressionsListentothetapeandanswerthesequestions.Task1:Skimming1.Whoisthespeakerinthisstory?3.What’sthemainideaofthispassage?A.Thedevelopmentofcomputers.B.Thedevelopmentanduseofcomputers.C.Amachinewhichissimple-minded.D.Computersmayreplacehumanbeings.Itisacomputer.2.wecanknowthatthetextiswritteninanorderof___timeThesechangesonlybecamepossibleasmymemoryimproved.Sincethe1970smanynewapplicationshavebeenfoundforme.OvertimeIhavebeenchangedquitealot.Para1:Para2:Para3:4.Matchthemainideasandtheparagraphs.Task2Carefulreadingtimeline1642:1822:1936:1940s:1960s:1970s:Now:Thecomputerbeganasacalculatingmachine.theAnalyticalMachinewasbuiltbyCharlesBabbage.Thecomputergrewrapidlybothinsizeandinbrainpower.Computerhadgrownaslargeasaroom.Computerswereusedinofficersandhomes.Computersconnectpeopleallovertheworldtogether.Thefirstfamilyofcomputerswasconnectedtoeachother.TrueorFalse1.AlanTuringbuiltanAnalyticalMachinetosolveanymathematicalproblems.2.Peoplebegantorealizethatthecomputergotclevererandquickerwithtimepassing.3.Thecomputerbegantoservethehumanracesinceitwasbroughtintopeople’shomes.4.Sincethe1970s,thecomputerwasusedbypeoplearoundtheworldthroughtheInternet.5.Thelargerthecomputeris,themorememoryithas.FTFTFauniversalmachineitsbirthIbecamesmallandthinbutIgotclevererandcleverer,quickerandquicker.AndmymemorybecamesolargethatIcouldn’tbelieveit!Let’sdosummaryTask3:Fillintheblanks:Ibeganasa_______________in1642inFrance.In1822Iwasbuiltasan___________.Thenin1936AlanTuringwroteabookandbuilta_____________.Astheyearshave______,Ihavebeenmade__________butIgot___________,__________.Inthe1960stheygavemeafamily_____________.NowpeoplecallittheInternet.Iwas________________inthe1970s.SoIbecamePC.SincemybirthIhavetrulybeenbuilttoservethehumanrace.calculatingmachineAnalyticalMachineuniversalmachinegonebysmallerandsmallerclevererandclevererquickerandquickerconnectedbyanetworkbroughtintopeople’shomesWhataretheadvantagesanddisadvantagesofthecomputers?Inmyopinion,Icanusethecomputerto….DiscussionTask4Post-readingAdvantagesWecanusethecompuersto…1.useacomputerforschoolwork2.playgamesonthecomputer3.sendemailstofriends4.downloadmusicandfilms5.goshoppingonline6.useQQtomakefriends7.communicatewithothers8.usetheInternettosearchforinformation9.surfthewebforfun10.readnewsbothathomeandabroad,readbooksandmagazinesDisadvantages1.Somestudentsmaygettooaddicted(沉溺于)toit.2.Somestudentswastetoomuchtimeinplayingcomputergames.3.Somestudentsspendtoomuchtimeinchattingwithothersandmaybecheated(欺骗)bysomeoneonline.4.Asaresult,theyhavelittletimetostudy5.Itisbadforoureyesandhealthtospendlongtimeinfrontofcomputers.ConclusionThereisnodoubtthatcomputerhastwosides,too.Ifwemakegooduseofit,itwillmakeourlivesmorecolorfulandconvenient.Butdon’tloseyourselfinplayingcomputers.Justremember:Keepfit,studywellandworkhard.Homework:1.Reviewthepassage,findoutthelanguagepointsinthepassage.2.FinishExercise1and2inLearningaboutLanguageonpage20.