译林牛津英语M7unit1-welcome&reading.ppt

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1、Unit1LivingwithtechnologyWelcome&ReadingLead-in:Technologyhasseensomeamazingdevelopmentsinthelastfewdecades.Canyougivemesomeexampleswhicharechangedbytechnologyinyourlife?DoTVsetslooklikeexactlythesameasolddays?Q1:developmentofTVblack-and-whiteTVcolourT

2、VLCDscreenHowdopeoplelistentomusic?Q2:developmentofaudio(音响)deviceGramophonephonographtaperecorderwalkmanCDplayerMP3MP4Howdopeoplelookupaword?Q3:developmentofdictionaryPaperdictionaryelectronicdictionarybooks,calendar,addresses,phonenumbers,clock,music

3、,games…Howdopeoplekeepintouchwithfriendsandfamilymembers?Q4:developmentofcommunicationletter/telegramtelephonebeepercellphonedevelopmentofcomputerdesktoplaptopPalmDisscussionHowhavetheseinventionsimprovedpeople’slives?Personally/Inmyopinion…,Ithinkthes

4、einventionsForexample,makepeople’slifebecomemorecolorfulwecanseemanyfunnyprogrammesandlearnalotofthingsthroughTV.”Howmuchdoyouknowabouttheseelectricdevices?ABCCompetition(2’)WhoistheinventorofthefirstcolorTV?A.VladimirZworykinB.PhiloFarnsworthC.JohnLog

5、ieBairdC(3’)Whomadethefirstrecordingofahumanvoice?A.VladimirZworykinB.PhiloFarnsworthC.ThomasEdisonC(4’)WhenandWherethefirsttaperecordersweremade?A.1928;GermanyB.1925;USAC.1929;UKATheevolutionofvideoandsounddevicesReadingFastReading1.Whodevelopedthesys

6、temusedformostearlyTVbroadcasts?2.Whomadethefirstrecordingofahumanvoice?3.Whatweredevelopedbythelate1960s?JohnLogieBaird.ThomasEdison.Portablecassetteplayersandvideorecorders.CarefulReading1YearEvent1877Thefirstrecordingofahumanvoicewasmade.18871925192

7、9193819621967198219931995YearEvent1877Thefirstrecordingofahumanvoicewasmade.188719251929EmileBerlinerinventedarecordplayerthatuseddiscstorecordon.ThefirstpublicTVbroadcastsweremade,intheUSA.RegularpublicbroadcastingbeganinLondon.1938196219671982Thefirs

8、tcolourTVprogrammewasbroadcast.SatelliteswereusedtobroadcastTV.RegularcolourTVbroadcastsbeganintheUK.ThefirstCDsweremadeavailable.YearEvent19931995TheDVDwasinvented.TheVCDwasborn.CarefulReading21.ColourTVbecamepopularwithinjustafewyears