牛津译林-模块七第一单元-M7U1-reading课件.ppt

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1、M7Unit1LivingwithtechnologyrefrigeratorwashingmachineAirconditionermicrowaveovenvacuumcleanerdesktoppclaptopTheevolutionofvideoandsounddevicesGuessaccordingtothetitle:Whatdoesthepassagetalkabout?Readingstrategy:understandingheadingsIfyouwanttoobtainsomespecificinformation,

2、forinstance,informationaboutsatelliteTV,fromthispassageasfastaspossible,whatwillyoudo?Lookingatsubtitles______historyofTV(inorderof______)Earlyhistoryof____________________________goesdigitalTVAudiodevicesEarlytimemodernage:CableTV,satelliteTV,digitalTV,…The_______soundrecor

3、dersSoundandvideoFastreadingTVPartOne:Carefulreadingblack-and-whiteTVMakeatimelineofthedevelopmentofTV1925ThefirstpublicTVbroadcastweremadeintheUSA1928Long-distanceTVbroadcastwasmadebetweentheUKandtheUSA.Regularpublicbroadcastingbegan.1938ThefirstcolorTVprogramwasbroadcast19

4、51RegularcolorTVbroadcastsbeganintheUSAby1967Mostbroadcastswereincolor.TherearemanydifferentpeoplecontributedtothedevelopmentofTV.JohnLogieBairdMostearlyTVbroadcastsweremadeusinghissystem.However,hissystemwasvery________andhadmany____________.primitivedrawbacksPhiloFarnswort

5、hHemadeimportant______________inthedevelopmentofTV.ModernTVsusemanyoftheprinciplesfirstdiscoveredbyhim.breakthroughPhiloFarnsworthconceived（构思）theworld’sfirstall-electronictelevisionattheageof15.Bythetimehedied,hehadearnedover300USandforeignpatents（专利）forelectronicandmechani

6、caldevices.FatherofTelevision1962SatelliteswereusedtobroadcastTVTheModernageSatellitesmakeTV_________topeoplewholivefarawayfromcities.accessibleSatelliteTVdishesTheycanoftenbeseendistributedthroughoutthecountrysideandremoteareas.However,mostpeoplebenefit______satelliteTV,asl

7、ocalTVcompaniesbroadcastthe_______tothepopulationlivingnearby.fromsignalsPartTwo:AudioDevicesEarlyhistoryofaudiodevicesRecorder_____________________(1877)_____________________(1958)Thefirstrecordingofahumanvoicewasrecordedthefirstrecordplayerwasinvented.phonographtubesUsedis

8、csasalternativestotubes.TaperecordersSteeltapePortablecassetteplayerVideore