人教版高一英语必修二unit3_computers(reading)课件.ppt

Unit3,reading,computers,1.Lookatthesepictures.Discusswhattheyhaveincommon.Predictwhatitisgoingtobeabout.,Whatsnext?,Whatdotheyhaveincommon?,1.Theycanbeusedforcalculating.2.Theycandealwithmathsproblems.3.Theyareourfriends.4.Theyareusefulandhelpful.,Discussion,robot,artificialintelligence,robot,2.Lookatthesepicturesandguesswhattheyare.,acalculatingmachine,analyticalmachine,universalmachine,solvedifficultmathematicalproblems,computeraslargeasaroom,3.Lookattheseinventions.Canyouputtheminanorderaccordingtothetimewhentheyappeared?Afterreadingthepassage,checktoseeifyouareright.()analyticalmachine()laptop()calculatingmachine()robot()PC()universalmachine,1,2,3,4,5,6,Reading,WHOAMI?,1.Whoisthespeakerinthisstory?,2.Whatsthemainideaofthispassage?A.Thedevelopmentofcomputers.B.Thedevelopmentanduseofcomputers.C.Amachinewhichissimple-minded.D.Computersmayreplacehumanbeings.3.Thetextiswrittenintheorderof.A.timeB.spaceC.logicD.alltheabove,Acomputer.,While-reading(1):,timeline,1642:1822:1936:1940s:1960s:1970s:,Thecomputerbeganasacalculatingmachine.,TheAnalyticalMachinewasbuiltbyCharlesBabbage.,Thecomputergrewrapidlybothinsizeandinbrainpower.,Computerhadgrownaslargeasaroom.,Computerswereusedinofficesandhomes.,Thefirstfamilyofcomputerswasconnectedbyanetwork.,Manynewapplicationshavebeenfoundforcomputers.,Now:,Computersconnectpeopleallovertheworldtogether.,While-reading(2):,(Universalmachine),While-reading(3):carefulreading,ReadthepassageagaincarefullyandfinishEx.2onP19inthestudentbook.,OvertimeIhavebeenchangedquitealot.,calculatingmachine,analyticalmachine,universalmachine,PC,laptop,Whycouldyou“think”logicallyandproduceananswerquickerthananyperson?BecauseIwasprogrammedbyanoperatorwhousedcardswithholes.,While-reading(3):,Thosechangesonlybecamepossibleasmymemoryimproved,tubes,transistors,chips,network,WorldWideWeb,2.Itotallychangedmyshape,because,mymemorywasfirststoredintubes,thenontransistorsandlateronvery,smallchips.,Itotallychangedmyshape！,While-reading(3):,Sincethe1970smanynewapplicationshavebeenfoundforme.,communications,finance,trade,robots,mobilephones,medicaloperations,spacerockets,providealifeofhighquality,3.Manynewapplicationshavebeenfoundforme,suchas,incommuni-,cation/finance/trade/robots/mobile,Rockets.,Careful-reading:,phones/medicaloperations/space,4.(translation)Overtimemymemoryhasdevelopedsomuchthat,likeanelephant,IneverforgetanythingIhavebeentold.随着时间的推移，我的记忆力发展的如此之快，就像一头大象，我从来不会忘记告诉我的任何事情。,While-reading(3):,Howcomputershavechangedourlives?Brainstormalistofthingsthatyou,yourschoolandyourfamilyusecomputerfor.,Discussion:,Post-reading:pair-work,Advantageslistentothemusics