m7u1the evolution of video and sound devicesppt课件

M7Unit1,LivingwithtechnologyWelcomeandreading,microwaveovenrefrigeratorTVsetairconditionerwashingmachinevacuumcleanerdishwashercomputerCDplayermobilephonedigitalcameraelectronicdictionary,微波炉冰箱，冷库电视空调；冷气机洗衣机真空吸尘器洗碗机电脑激光唱机；CD播放器手机数码相机电子词典,.,ReadthetextandfinishPartAonP2.,1.WhodevelopedthesystemusedformostearlyTVbroadcasts?2.Whomadethefirstrecordingofahumanvoice?3.Whatweredevelopedbythelate1960s?,JohnLogieBaird.,ThomasEdison.,Portablecassetteplayersweredeveloped.,Firstreading,.,1.ColourTVbecamepopularwithinjustafewyearsafteritwasinvented.2.PeoplewithoutsatellitedishesdonotbenefitatallfromsatelliteTVbroadcasts.3.Someofthefirsttaperecordersusedplastictapetorecordon.4.RecordsandcassettesdonotofferasgoodasoundqualityasCDs.5.Newtechnologywillsoonmakemanyofthethingstalkedaboutinthearticleoutofdate.,Secondreading:TrueorFalse,steelorpaper,morethantwodecades,still,.,PartC21.1887EmileBerlinerinventedarecordplayerthatuseddiscostorecordon.2.1925ThefirstpublicTVbroadcastsweremadeintheUSA.3.1929RegularpublicbroadcastingbeganinLondon.4.1938ThefirstcolorTVprogrammewasbroadcast.5.1962SatelliteswereusedtobroadcastTV.6.1967RegularcolorTVbroadcastsbeganintheUK.7.1982ThefirstCDsweremadeavailable.8.1993TheVCDwasborn.9.1995TheDVDwasinvented.,.,Task-basedreading,presentTVsdecaderecordedusingpaperwide/widespreadcheapreceivemore,.,Understandingdifficultsentences,1.Regularpublicbroadcastingfollowedshortlyafterwards,firstbeginningon11May1928inNewYork.Regularpublicbroadcastingfollowedshortlyafterwardsandfirst_on11May1928inNewYork.,began,.,2.SatelliteswereusedtobroadcastTVbeginningin1962.SatelliteswereusedtobroadcastTVandthis_in1962.3.broadcastthesignalstheygetfromsatellitereceiverstothepopulationlivingnearby.broadcastthesignalstheygetfromsatellitereceiverstothepopulation_nearby.,began,wholive,.,4.usemanyoftheprinciplesfirstdiscoveredbyFarnsworth.usemanyoftheprinciples_byFarnsworth.5.andsosatellitedishescanoftenbeseendistributedthroughoutthecountrysideandtheremoteareas.andsoyoucanoftensee_throughoutthecountrysideandtheremoteareas.,whichwerefirstdiscovered,satellitedishesdistributed,.,6.itwasnotuntil1938thatthefirstcolourTVprogrammewasbroadcast.ThefirstcolourTVprogramme_.Notuntil1938_.7.Technologyisnowchangingfasterthanmostpeoplecankeeppacewith.Mostpeople_thefastdevelopmentoftechnology.,wasntbroadcastuntil1938.,wasthefirstcolourTVprogrammebroadcast,cantkeeppacewith,.,1.影像和声音设备的发展2.之后不久L43.对作贡献L64.有许多缺点L85.在电视的发展上取得了重大突破L96.受益于L247.被用手上发条L318.随着数码技术的发展L489.跟上步伐L51,theevolutionofvideoandsounddevices,shortlyafterwards,contributeto,havemanydrawbacks,makeimportantbreakthroughsinthedevelopmentofTV,benefitfrom,bewoundupbyhand,Withthedevelopmentofdigitaltechnology,keeppacewith,Phrases,1.影像和声音设备的发展2.定期向公众播放3.之后不久4.有许多缺点5.在电视的发展上取得了重大突破6.由法恩斯沃斯首先发现的原理7.制造出第一台彩色电视机,theevolutionofvideoandsounddevices,regularpublicbroadcasting,shortlyafterwards,havemanydrawbacks,makeimportantbreakthroughsinthedevelopmentofTV,theprinciplesfirstdiscoveredbyFarnsworth,constructthefirstcolorTV,8.被现场直播9.使得远离城市的人们也能收看电视10.受益于11.使用唱片来代替圆管12.被用手上发条13.随着数码技术的发展14.某种形式的便携式存储设备15.跟上步伐,bebroadcastlive,makeTVaccessibletopeoplewholivefarawayfromcities,benefitfrom,usediscsasalternativestotubes,bewoundupbyhand,Withthedevelopmentofdigitaltechnology,someformofportablestorage,keeppacewith,.,IIReadthefollowingsentencesfluently,1.MostearlyTVbroadcastsweremadeusingasystemdevelopedbyJohnbairdintheUK.(L7)2.However,in1887EmileBerliner,aGermanlivingintheUSA,inventedarecordplayerthatuseddiscsasalternativetotubes,andsothemodernrecordplayerwasborn.(L29)3.JohnLogieBairdconstructedthefirstcolourTVin1928，butitwasnotuntil1938thatthefirstcolourTVprogrammewasbroadcast.(L12)4.Ittookmorethantwodecades,though,until1951,forregularcolourTVbroadcaststobeginintheUSA.(L13)5.Meanwhile,electricalcomponentseventuallybecamesosmallthat,bythelate1960s,portablecassetteplayersweredeveloped,alongwithvideorecorderswhichwereusedbyTVstations.(L38),languagepoints,JohnconstructedthefirstcolorTVin1928,butitwasnotuntil1938thatthefirstcolorTVprogrammewasbroadcast.(L12-13),Wewaitedtill(until)hecameback.我们一直等到他回来。如主句动词是延续性动作，常用肯定式，表示“直到为止”;Shedidntstopworkinguntilelevenoclock.她到11点钟才停止工作。如主句动词是瞬间动词，常用否定式，表示“直到才”,Theydidntgohomeuntilitwasgettingdark.与强调句型结合Itwasnotuntilitwasgettingdarkthattheywenthome.与倒装句式结合Notuntilitwasgettingdarkdidtheygohome.（主倒从不倒）,notuntil句型,beforeItwillbe+一段时间+before从句(does)要过多久才能做Itwillbe3yearsbeforewemeetagain.Itwillnotbe+一段时间+before从句要不了多久就能做Itwillnotbelongbeforehefinisheshisjob.Itwas+一段时间+before从句(did)过了很久才Itwas3daysbeforehewenttoBeijing.Itwasnot+一段时间+before从句(did)没过多久就Itwasnotlongbeforethefirewasputout.,since,Itis/hasbeen+一段时间since从句(did),ItstwoyearssinceIjoinedthearmy.自从我参军以来，已是两年了。ItstwoyearssinceIwasinthearmy.自从我退役/不在军队中以来，已是两年了。,短暂性动词:直接翻译,延续性动词:反过来翻译,1.Itsyears_(since,before,after,that)Ipaintedthisbeautifulpicture.2.Itwillbeyears_(since,before,after,that)Ipaintthisbeautifulpicture.3.Itwasyears_(since,before,after,that)Ipaintedthisbeautifulpicture.4.Itsforfiveyears_(since,before,after,that)Ihavepaintedthisbeautifulpicture.,易误辨析:,表示从since从句谓语动作发生以后到现在所经过的一段时间，译为“自从.以来已多久了”,Itis+时间段+since(过去时).,表示从过去某一时间到before从句谓语动作发生所经过的一段时间,译为“多长时间后才/就做了”,It+was+时间段+before(过去时),表示从现在起到before从句谓语动作发生所经过的一段时间,译为“多长时间后才会/就会做”,It+willbe+时间段+before(一般现在时),_,_,_,_,2.Ittookmorethantwodecades,though,until1951,forcolorbroadcaststobeginintheUSA.(P2)(L13-14)但是彩色电视节目一直到1951年才得以在美国开播,这其间一共尽力了二十多年的时间.thoughconj.1)虽然,尽管ThoughIadmitthattheproblemisdifficult,Idontthinkitcantbesolved.2)但是,可是,不过(引接补充说明）Theyrecomingnextweek,thoughIdontknowwhichday.adv.可是,不过(一般置于句末)Idontthinkitcantbesolved.Iadmitthattheproblemisdifficult,though.,1._hehaslimitedtechnicalknowledge,theoldworkerhasalotofexperience.(2009全国I）A.SinceB.UnlessC.AsD.Although2.Though_money,hisparentsmanagedtosendhimtouniversity.（2008上海）A.lackedB.lackingofC.lackingD.lackedin3.-HowiseverythinggoingonwithyouinEurope?-Quitewell.NotsosmoothlyasIhoped,_.(2009江苏)A.thoughB.insteadC.eitherD.too,高考链接,5.Mostearlyrecordersemployedsteeltapetorecordon,whichmadethemheavyanddifficulttouse,orpapertape,whichwaseasiertousebutoftenbroke.(L34-36)employ在本句中意思是“使用，利用”，employsomethingtodo用某物来做。eg.我们可以驾驶这种新型汽车，以便节约能源。Wecanemploythistypeofnewcarstoridesothatwecansaveenergy.sb.beemployedindoingsth.“从事于，忙于”eg.我女儿总是忙于做家庭作业。Mydaughterisalwaysemployedindoingherhomework.,(2)两个which均引导非限制性定语从句，分别修饰steeltape和papertape.(3)makethemheavyanddifficulttouse使他们笨重并难于使用makesth.adj.todo其中动词不定式为主动形式表被动含义。eg.这些大窗子使人们住进这所房子很舒适。Thebigwindowsmakethehousecomfortabletolivein.(4)waseasiertouse使用起来更容易eg.Thegirliseasytogetalongwith.,.,Translation,1.直到天黑他们才回家。（三种表达）2.再过三年他们才能再次重逢。3.没过多久大火就被扑灭了。4.他们不在这儿工作已经5年了。5.尽管我承认问题很难，但我并不认为它不能解决。6.这座小岛只能坐船到达。7.每个孩子都有机会接受义务教育。8.我女儿总是忙于做家庭作业。9.这些大窗子使人们住进这所房子很舒适。,.,直到天黑他们才回家。（三种表达）Itwasnotuntilitwasgettingdarkthattheywenthome.Theydidntgohomeuntilitwasgettingdark.Notuntilitwasgettingdarkdidtheygohome.2.再过三年他们才能再次重逢。Itwillbe3yearsbeforewemeetagain.3.没过多久大火就被扑灭了。、Itwasnotlongbeforethefirewasputout.4.他们不在这儿工作已经5年了。Itis/hasbeen5yearssincetheyworkedhere.5.这座小岛只能坐船到达。Theislandisonlyaccessiblebyboat.,.,6.尽管我承认问题很难，但我并不认为它不能解决。Idontthinkitcantbesolved,though,Iadmitthattheproblemisdifficult.=Idontthinkitcantbesolved,Iadmitthattheproblemisdifficult,though.7.每个孩子都有机会接受义务教育。Everychildhasaccesstocompulsoryeducation.8.我女儿总是忙于做家庭作业。Mydaughterisalwaysemployedindoingherhomework.9.这些大窗子使人们住进这所房子很舒适。Thebigwindowsmakethehousecomfortabletolivein.,.,ThefirstpublicTVbroadcastsweremadeintheUSAin1925.Later,in1928,thefirstlong-distanceTVbroadcastwasmadebetweentheUKandtheUSA.Manypeople1_tothedevelopmentofTV.JohnlogieBaird2_thefirstcolourTVin1928,butitwasnotuntil1938thatthefirstcolourTVprogrammewasbroadcast.However,withinashorttimenearlyallTVbroadcastsweremadein3_.SatelliteswereusedtobroadcastTVbeginningin1962.TheymakeTV4_topeoplewholivefarawayfromcities,andsatellitesdishescanoftenbeseen5_throughoutthecountrysideandremoteareas.ThomasEdisonmadethefirstrecordingofahumanvoiceonhisinvention,therecordplayerin1877.Thefirstrecordplayershadto