Task1.Revision:Electronicappliances43152black-and-whiteTVColorTVLCDscreenTVOLEDscreenTVTask2.Lead-in:Whichisbetter?1234M7Unit1Reading:TheevolutionofvideoandsounddevicesHeadings/subtitlesQ1:Howisthepassageorganized？_______A.byparagraphsB.inorderoftimeC.byconceptsD.byheadings/subtitlesTask3.Readingstrategy.Q2:What’sthefunctionofheadings?Headingsappearbeforeeachsectionofatext.Theycanshowyouhowatextisorganizedandgiveanideaastothecontentsofeachsection.DConclusion:SaveyourtimeandeffortTask4.Scanning:1.WhodevelopedthesystemusedformostearlyTVbroadcasts?JoneLogieBaird.2.Whomadethefirstrecordingofahumanvoice?ThomasEdison.3.Whatweredevelopedbythelate1960s?Portablecassetteplayersandvideorecorders.Task5.Skimming:Structureofthepassage.TVEarlyhistoryofTVThemodernage:satelliteTV19251928(Thepassageisorganizedinorderof______)time1920s-30s193819511967ThefirstpublicTVbroadcastsweremade,theUSA.Thefirstlong-distanceTVbroadcastwasmadebetweentheUKandtheUSA.PhiloFarnsworthmadeimportantbreakthroughs.JohnLogieBairdconstructedthefirstcolourTV.ThefirstcolourTVprogramwasbroadcast.1962SatelliteswereusedtobroadcastTV.RegularcolourTVbroadcastsbeganintheUK.RegularcolourTVbroadcastsbeganintheUSA.Canyoudrawastructureofrecorders?RecordersEarlyhistoryofsoundrecordersSoundandvideorecordersSoundandvideogodigitalThefutureRecordersYearsEvents18771887Firsttaperecordersusedtocopysoundweremade.198219931995Firstrecordingofahumanvoicewasmade.EmileBerlinerinventedarecordplayerthatuseddiscs.1928FirstCDsweremadeavailable.TheVCDwasborn.TheDVDwasinvented.AccordingtothepassageweknowthatthefirstpublicTVbroadcastsweremadeintheUSAin1925whileregularpublicbroadcastingfollowed1._______(short)afterwards.Manydifferentpeoplecontributed2.__thedevelopmentofTV.JohnLogieBaird3.___________(construct)thefirstcolorTVin1928,butitwasnotuntil19384.____thefirstcolourTVprogrammewasbroadcast.Satellites5._________(use)tobroadcastTVbeginningin1962.MostpeoplebenefitfromsatelliteTV,6.____localTVcompaniesbroadcastthesignalstheygetfromsatellite7.________(receive)tothepopulation8._____(live)nearby.In1877,ThomasEdisoninventedtherecordplayer9._____usedroundtubestorecordon.Bythelate1960s,portablecassetteplayersweredeveloped,alongwithvideorecorders.In1982,the10.____(one)CDsweremadeavailable.In1993,theVCDwasborn,andin1995,theDVDwasinvented.shortlytoconstructedthatwereusedasreceiverslivingwhichfirstTask6.Listeningandfillingtheblanks:Task7.TheevolutionofCommunicationEquipment:1.CompleteC1andD、Eonpage4and5.2.WriteanarticleabouttheevolutionofCommunicationEquipment.
