新人教版必修二Unit3_Warming_up课件.ppt

,Unit3ComputersPeriod1Warmingup,Heavy!Difficult!Hard!Tired!,keyboard,mouse,monitor,screen,speaker,hostcomputer,camera,Whatdotheyhaveincommon?,anabacus,acalculator,adesktop,anotebookcomputeralaptop,digitalcamera,arobot,(Whatdotheyhaveincommon?),IthinkthatInmyopinionIbelievethatWhatsyourreason?Whydoyouthinkso?,1.Theycanbeusedforcalculating.2.Theycandealwithmathsproblems.3.Theyareourfriends.4.Theyareusefulandhelpful.,Discussion,workforusinMars(火星),Whatsnext?,carrythings,workinwars(战斗),仿真机器人,entertainment娱乐,Whatdoyouthinkwillbethenextdevelopment?,CD-DVD-ROM-DVDRW,CRTmonitor,LCDmonitor,CPU,harddisc,chips/motherboard,somehardware:,使用阴极射线管(CathodeRayTube)的显示器,LiquidCrystalDisplay,keyboard,mouse,modem,scanner,printer,speaker,floppydisc/disk,USBflashdisc,CD/VCD/DVD,MP3player,MP4player,Memory:(存储器),移动硬盘,USBFlashdisc,1TB固态硬盘,T硬盘,Harddisc:,Core2Duo,酷睿2:4核,龙芯8核,cpu:,otherusefulwordsandexpressionsaboutcomputer:,Network网络Virus病毒Download下载Upload上传Program程序Website站点Hacker黑客,Homepage主页Password密码Desktop桌面Username用户名Click点击Software软件Hardware硬件,Homepage主页,Reading:WhoamI?,Skimming:Readandanswerthesequestions:,2.Whowasthefirstpersontoinventtheearliestcomputer?3.Whowasthenextimportantpersontodesigncomputers?,CharlesBabbage,AlanTuring,1.WhoamI?,Acomputer.,timeline,1642:1822:1936:1940s:1960s:1970s:Now:,Scanning:,Thecomputerbeganasacalculatingmachine.,theAnalyticalMachinewasbuiltbyCharlesBabbage.,Thecomputergrewrapidlybothinsizeandinbrainpower.,Computerhadgrownaslargeasaroom.,Computerswereusedinofficersandhomes.,Computersconnectpeopleallovertheworldtogether.,thefirstfamilyofcomputerswasconnectedtoeachother,Thehistoryofcomputers,thesecondgeneration(1956-1963),thethirdgeneration(1964-1971),thefourthgeneration(1971-),Thefirstgeneration(1945-1956),Thedevelopmentofcomputers:,Calculatingmachine,Analyticalmachine,Universalmachine,Artificialintelligence,Computer,Internet,计算器,分析机,万能机,通用机器,人工智能,calculating,analytical,universal,mathematicalproblems,Medicaloperations,Memory,Transistors,Applications,Communication,Trade,Intensivereading:Underlinethephrases&sentencesthatyouthinkareimportant,Starsentences:,P1L2I_instructionsfromcardswithholes.P15EarlierIwasnotverybig,butthenIbecame_.P1L6However,peoplethoughtIwas_untilthey_Ihad“artificialintelligence.”,我执行穿孔卡的指令,早些时候我并不是很大，但是后来我变得非常大,可是，人们认为我头脑简单，直到发现我有人工智能时，他们才不那么想了。,followed,huge,simple-minded,discovered,P1L8Astheyearshave_,Ihavebeenmadesmallerandsmaller.P2L1Therewere_whenmysizewas_changed.P2L3ButIwasalwayssolonely_therebymyself,untilintheearly1960s,theygavemeafamily_byanetwork.,随着岁月的流逝，我被做得越来越小了.,有段时期我的体积完全变了,但是我总是孤孤单单地站在那里，直到60年代初，人们才给了我一个用网络连接的家庭。,goneby,times,totally,standing,connected,Advantagesanddisadvantagesofthecomputers.,Discussion,advantageswecancommunicatewithfriendslistentothemusicseefilms&watchnewsplaygamesdoshoppingsavealotoftimedoalotofusefulthings,DisadvantagesSomepeopleespeciallytheteenagersabandon(沉迷于)themselvestothecomputergam