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牛津英语模块七第一单元reading省公开课金奖全国赛课一等奖微课获奖PPT课件.pptx

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M7Unit1LivingwithtechnologyrefrigeratorwashingmachineAirconditionermicrowaveovendesktopTheevolutionofvideoandsounddevicesReadingstrategy:understandingheadings______historyofTV1.ColorTVbecamepopularwithinjustafewyearsafteritwasinvented.() 2.PeoplewithoutsatellitedishesdonotbenefitatallfromsatelliteTVbroadcasts.()3.Someofthefirsttaperecordersusedplastictapetorecordon.() 4.RecordsandcassettesdonotofferasgoodasoundqualityasCDs.() 5.Newtechnologywillsoonmakemanyofthethingstalkedaboutinthearticleoutofdate.()TVblack-and-whiteTVMakeatimelineofthedevelopmentofTVJohnLogieBairdPhiloFarnsworth1962SatelliteTVdishesPartTwo:(L26-52) Earlyhistoryofsounddevices(26-32)tubesIn1887,EmileBerliner used_______asalternativestotubes.taperecorders_____________________ weredevelopedbythe________Videorecorders___________(1982)KeysforactivityD. 1.____2.____3.____ 4.____5.____6.____ 7.____8.____KeysforactivityE. 1.__________2.____________ 3.__________4.____________ 5.__________6.____________ 7.__________