英语必修二第三单元课文

Sendorreceiveemails……COMPUTERUnit3Computerskeyboardmousemonitorscreenspeakerhostcomputercamera1234567WhatisitinEnglish?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!AndmymemorybecamesolargethatevenIcouldn'tbelieveit!ButIwasalwayssolonelystandingtherebymyself,untilintheearly1960stheygavemeafamilyconnectedbyanetwork.IwasabletosharemyknowledgewithothersthroughtheWorldWideWeb.Thesechangesonlybecamepossibleasmymemoryimproved.Ihavebecomeveryimportantincommunication,financeandtrade.Ihavealsobeenputintorobotsandusedtomakemobilephonesaswellashelpwithmedicaloperations.IhaveevenbeenputintospacerocketsandsenttoexploretheMoonandMars.Anyhow,mygoalistoprovidehumanswithalifeofhighquality.IamnowtrulyfilledwithhappinessthatIamadevotedfriendandhelperofthehumanrace!Sincethe1970smanynewapplicationshavebeenfoundforme.Paragraph1:OvertimeIhavebeenchangedquitealot.1.calculatingmachine2.analyticalmachine3.universalmachine4.PC5.laptopParagraph2:Thesechangesonlybecamepossibleasmymemoryimproved.1.tubes2.transistors3.chips4.network5.WorldWideWebParagraph3:Sincethe1970smanynewapplicationshavebeenfoundforme.1.communications2.finance3.trade4.robots5.mobilephones6.medicaloperations7.spacerocketsTimeEvents16421822TheanalyticalmachinewasmadebyCharlesBabbage.1940sThefirstfamilyofcomputerswasconnectedtoeachother.1970snowFillintheblanksThecomputerbeganasacalculatingmachine.1936Thecomputerhadgrownaslargeasaroom.1960sComputerswereusedinofficesandhomes.Thecomputerisadevotedfriendandhelperofthehumanrace.Thecomputergrewrapidlybothinsizeandinbrainpower.AlthoughIwasyoungIcouldsimplifydifficultsums.simplify:tomakesomethingeasytodoorunderstandIhavebeenputintospacerocketsandsenttoexplorethemoonandtheMars.explore:traveltoaplaceinordertoknowaboutit…untilintheearly1960stheygavemeafamilyconnectedbyanetwork.IwasabletosharemyknowledgewithothersthroughtheWorldWideWeb.connect:bringsomethingtogetherSincethe1970smanynewapplicationshavebeenfoundforme.Ihavebecomeveryimportantincommunication,financeandtrade.application:practicalusesWhilereadingforthemainideaofaparagraph,weshould………1.Tofindthetopicsentenceofapapagraph,wecanlookforsome_________________tohelp.2.Atopicsentenceisusuallyatthe_____________oftheparagraph.3.It’sbetterforusto___________themeaningofsomenewwordsaccordingtothe____________.detailsorkeywordsbeginningguesscontextBettercomputer,betterlife?Discussion:Bettercomputer,betterlife?Iagree/don’tagreewiththesaying.Inmyopinion…Ibelievethat…because…Theadvantage/disadvantageis…Giveyourreasons.Whatmakesyouthinkso?First…Second…Tobeginwith…besides…what’smore…Inaddition…what’sworse…Let’sdecide…Let’smakeadecision.Theexpressionsbelowmaybehelpfultoyou.Homework:Writeareportofourdiscussioninaround100words.