牛津译林 模块七第一单元 M7U1 reading

M7Unit1Livingwithtechnology,refrigerator,washingmachine,Airconditioner,microwaveoven,vacuumcleaner,desktoppc,laptop,Theevolutionofvideoandsounddevices,Guessaccordingtothetitle:,Whatdoesthepassagetalkabout?,Readingstrategy:understandingheadings,Ifyouwanttoobtainsomespecificinformation,forinstance,informationaboutsatelliteTV,fromthispassageasfastaspossible,whatwillyoudo?,Lookingatsubtitles,_historyofTV,(inorderof_),Earlyhistoryof_goesdigital,TV,Audiodevices,Early,time,modern,age:CableTV,satelliteTV,digitalTV,The,_,soundrecorders,Soundandvideo,Fastreading,TV,PartOne:,Carefulreading,black-and-whiteTV,MakeatimelineofthedevelopmentofTV,1925,ThefirstpublicTVbroadcastweremadeintheUSA,1928,Long-distanceTVbroadcastwasmadebetweentheUKandtheUSA.Regularpublicbroadcastingbegan.,1938,ThefirstcolorTVprogramwasbroadcast,1951,RegularcolorTVbroadcastsbeganintheUSA,by1967,Mostbroadcastswereincolor.,TherearemanydifferentpeoplecontributedtothedevelopmentofTV.,JohnLogieBaird,MostearlyTVbroadcastsweremadeusinghissystem.However,hissystemwasvery_andhadmany_.,primitive,drawbacks,PhiloFarnsworth,Hemadeimportant_inthedevelopmentofTV.ModernTVsusemanyoftheprinciplesfirstdiscoveredbyhim.,breakthrough,PhiloFarnsworthconceived（构思）theworldsfirstall-electronictelevisionattheageof15.Bythetimehedied,hehadearnedover300USandforeignpatents（专利）forelectronicandmechanicaldevices.,FatherofTelevision,1962,SatelliteswereusedtobroadcastTV,TheModernage,SatellitesmakeTV_topeoplewholivefarawayfromcities.,accessible,SatelliteTVdishes,Theycanoftenbeseendistributedthroughoutthecountrysideandremoteareas.However,mostpeoplebenefit_satelliteTV,aslocalTVcompaniesbroadcastthe_tothepopulationlivingnearby.,from,signals,PartTwo:,AudioDevices,Earlyhistoryofaudiodevices,Recorder,_(1877)_(1958),Thefirstrecordingofahumanvoicewasrecorded,thefirstrecordplayerwasinvented.,phonograph,tubes,Usediscsasalternativestotubes.,Taperecorders,Steeltape,Portablecassetteplayer,Videorecorders,TheywereusedbyTVstationsfirst.Bythelate1970s,videorecordersforhomeusewereintroduced.,_(1982),Digitalera数字时代,_(1993),_(1995),VCD,DVD,thefirstCDs,S