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1、Module7Unit1 Livingwithtechnology ReadingTheevolutionofvideoandsounddevices影像与声音设备的发展 Readingstrategy understandingheadings Headingscanshowyouhowatextisorganized Theycangiveanideaastothecontentsofeachsection Thestructureofthetext Theevolutionofvideoandsounddevices TV Soundandvideorecorders Earlyhist
2、oryofTV Themodernage satelliteTV Earlyhistoryofsoundrecorders Soundandvideorecorders Soundandvideogodigital Thefuture EarlyhistoryofTV ThedevelopmentofTVbroadcast Peoplewhocontributedtothedevelopment ThedevelopmentofcolorTV EarlyhistoryofTV Howmanyaspectsarementionedinthispart ThefirstpublicTVbroadc
3、astsweremade Thefirstlong distanceTVbroadcastwasmadebetweentwocountries Regularpublicbroadcastingbegan in1925 in1928 in1928 in1929 in1928 Readthefirstparagraph thenfillintheform ThedevelopmentofTVbroadcast Peoplewhocontributedtothedevelopment JohnLogieBaird Hissystemwas andhad He in1928 PhiloFarnswo
4、rth He inthedevelopmentofTVinthelate1920sandearly1930s usedbyModernTVswerefirstdiscoveredbyFarnsworth primitive manydrawbacks constructedthefirstcolourTV madeimportantbreakthroughs Manyoftheprinciples ThedevelopmentofcolorTV WhenwasthefirstcolorTVconstructed Whendidregularcolorbroadcastsbegin Thefir
5、stcolorTVwasconstructedin1928 RegularcolorbroadcastsbeganintheUSAin1951andin1967intheUK Themodernage satelliteTV ThefeaturesofsatelliteTV bebroadcastlivevastdistances witheveryonereceivingthesamebroadcastatthesametime beaccessibletopeoplewholivefarawayfromcities benefitmostpeople Earlyhistoryofsound
6、recorders Ithadtobewoundupbyhand Hemadethefirstrecordingofahumanvoicein1877 ThomasEdison Thefirstrecordplayer EmileBerliner Soundandvideorecorders Soundandvideogodigital Thedevelopmentofsoundandvideorecorders 192819501960s1970s198219931995 steeltape papertapeplastictapeportablecassetteplayers videor
7、ecorderssmallandcheapvideorecordersCDSVCDsDVDs Thefuture Thiswillsoonmakerecords cassetterecorders CDs DVDsandevenTVsthingsofthepast Translatethesentence Whatdoes this referto ChoosethedevelopmentofTVorsoundandvideorecorders Trytotellyourpartneraboutitsdevelopment Rememberthatyoushouldorganizeyourreportinorderoftime Activity Whataresomepossibleadvantagesanddisadvantagesofhavingsoundandvideodevicesinourlives Discussion Homework FinishA1 A2onP98
