英语必修二第三单元课文.ppt

Unit3Computers,Reading,Sendorreceiveemails,COMPUTER,Unit3Computers,keyboard,mouse,monitor,screen,speaker,hostcomputer,camera,1,2,3,4,5,6,7,WhatisitinEnglish?,CPU(centralprocessingUnit)中央处理器,WhatisitinEnglish?,Mainboard(主板),WhatisitinEnglish?,harddisc硬盘,WhatisitinEnglish?,displaycard显卡,DVDROMDigitalVersatileDiscReadOnlyMemory数字通用光盘,WhatisitinEnglish?,Thefirstcomputer?,ThefirstcalculatingmachinewasinventedbyPascalinFrancein1642.,Intheearly1960s,peoplecouldcommunicatewitheachotherthroughWorldWideWeb.,WhoamI?,Reading:,IbeganasacalculatingmachineinFrancein1642.AlthoughIwasyoungIcouldsimplifydifficultsums.IdevelopedveryslowlyandittooknearlytwohundredyearsbeforeIwasbuiltasananalyticalmachinebyCharlesBabbage.AfterIwasprogrammedbyanoperatorwhousedcardswithholes,Icouldthinklogicallyandproduceananswerquickerthananyperson.Atthattimeitwasconsideredatechnologicalrevolutionandthestartofmyartificialintelligence.In1936myrealfather,AlanTuring,wroteabookabouthowIcouldbemadetoworkasauniversalmachinetosolveanydifficultmathematicalproblem.Fromthenon,Igrewrapidlybothinsizeandinbrainpower.Bythe1940sIhadgrownaslargeasaroom,andIwonderedifIwouldgrowanylarger.However,thisrealityalsoworriedmydesigners.Astimewentby,Iwasmadesmaller.FirstasaPC(personalcomputer)andthenasalaptop,Ihavebeenusedinofficesandhomessincethe1970s.,OvertimeIhavebeenchangedquitealot.,Firstitwasstoredintubes,thenontransistorsandlateronverysmallchips.AsaresultItotallychangedmyshape.AsIhavegrownolderIhavealsogrownsmaller.Overtimemymemoryhasdevelopedsomuchthat,likeanelephant,IneverforgetanythingIhavebeentold!AndmymemorybecamesolargethatevenIcouldntbelieveit!ButIwasalwayssolonelystandingtherebymyself,untilintheearly1960stheygavemeafamilyconnectedbyanetwork.IwasabletosharemyknowledgewithothersthroughtheWorldWideWeb.,Thesechangesonlybecamepossibleasmymemoryimproved.,Ihavebecomeveryimportantincommunication,financeandtrade.Ihavealsobeenputintorobotsandusedtomakemobilephonesaswellashelpwithmedicaloperations.IhaveevenbeenputintospacerocketsandsenttoexploretheMoonandMars.Anyhow,mygoalistoprovidehumanswithalifeofhighquality.IamnowtrulyfilledwithhappinessthatIamadevotedfriendandhelperofthehumanrace!,Sincethe1970smanynewapplicationshavebeenfoundforme.,Paragraph1:OvertimeIhavebeenchangedquitealot.calculatingmachineanalyticalmachineuniversalmachinePClaptopParagraph2:Thesechangesonlybecamepossibleasmymemoryimproved.tubestransistorschipsnetworkWorldWideWebParagraph3:Smunicationsfinancetraderobotsmobilephonesmedicaloperationsspacerockets,Fillintheblanks,Thecomputerbeganasacalculatingmachine.,1936,Thecomputerhadgrownaslargeasaroom.,1960s,Computerswereusedinofficesandhomes.,Thecomputerisadevotedfriendandhelperofthehumanrace.,Thecomputergrewrapidlybothinsizeandinbrainpower.,AlthoughIwasyoungIcouldsimplifydifficultsums.,simplify:tomakesomethingeasytodoorunderstand,IhavebeenputintospacerocketsandsenttoexplorethemoonandtheMars.,explore:traveltoaplaceinordertoknowaboutit,untilintheearly1960stheygavemeafamilyconnectedbyanetwork.IwasabletosharemyknowledgewithothersthroughtheWorldWideWeb.,connect:bringsomethingtogether,Sincethe1970smanynewapplicationshavebeenfoundforme.Ihavebecomeveryimportantincommunication,financeandtrade.,application:practicaluses,Whilereadingforthemainideaofaparagraph,weshould,Sumup(总结)thereadingskills.,Tofindthetopicsentenceofapapagraph,wecanlookforsome_tohelp.Atopicsentenceisusuallyatthe_oftheparagraph.Itsbetterforusto_themeaningofsomenewwordsaccordingtothe_.,Sumup(总结)thereadingskills.,detailsorkeywords,beginning,guess,context,Bettercomputer,betterlife?,Discussion:Bettercomputer,betterlife?,Iagree/dontagreewiththesaying.InmyopinionIbelievethatbecauseTheadvantage/disadvantageisGiveyourreasons.Whatmakesyouth