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,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,M7 Unit1Living with technology,What would life be like without them?,Free talk:,TVs,audio devices,Reading:,TV and audio devices,a review,a report of past events,How is the passage organized _.,A.by paragraphs B.in chronological order,C.by concepts D.by subtitles,Fast-reading:,_history of TV,(in order of_),Early history of_,_,_ goes digital,TV,Audio,devices,Early,time,modern,Sound,age:Cable TV,satellite TV,digital TV,The,_,audio devices,Tape recorders and players,careful-reading:,specific,years,the events,history of TV,Year,Event,First public showings of wireless TV transmissions were made in the USA.,Cable TV began in the USA;3 American scientists invented the transistor.,1951,1962,International standards for digital TV were established.,First WebTV set-top boxes came onto the market.,1925,1948,Colour broadcasts began in the USA.,Satellites began to be used to broadcast TV.,1989,1996,Listen and answer:,1.Who might be the inventor of the first TV?,A.Vladimir Zworykin from Russia.,B.Philo Farnsworth in the USA.,C.John Logie,Baird from Scotland.,D.It remains uncertain.,2.How many countries have put digital TV into operation according to the passage?,A.Only one.B.Already two.,C.At most three.D.At least four.,careful-reading:,specific years,the,events,audio devices,audio devices,Year,Event,1877,1954,First LPs(long-play records)came onto the market.,1982,1987,1992,First recording of a human voice was made.,Invention of transistor led to the development of cassette recorders.,First CDs produced by using digital technology were made available.,Development of MP3 technology started in Germany.,Development of MD player began.,1958,1.Who might have attributed to the development of the Walkman?,A.two Japanese engineers.B.three American scientists.,C.Thomas Edison.D.Emile Berliner.,2.What is the main factor that causes the music websites to spring up all over the Internet?,A.The popularity of Walkman.,B.The development of the MD player.,C.The development of MPs technology.,D.The wide use of Discman.,listen and answer:,6.,对,作出贡献,13.,彩色的,14.,黑白电视,19.,比,好,;,优于,22.,有机会使用,25.,上市,26.,做问卷调查,27.,与其他观众聊天,32.,被手动上发条,38.,电流,45.,声音数字化,.,52.,正如名称所示,16.,花了,50,年才有,66,的美国家庭拥有了它,.,contribute to,in colour,black-and-white TV,be superior to,have access to,come on to the market,respond to questionnaires,chat to other viewers,be wound up by hand,an electric current,Sound goes digital.,as the name indicates,It took 50 years before 66percent of American households had it.,Underline the phrases.,advantagesdisadvantages,discussion:,meet peoples needs.,have improved peoples lives to some degree.,radiation from them may be harmful to peoples health.,generate large amount of waste,which is harmful to the environment.,to sum up,Read the text and try to memorize the words and expressions.,Do Language practice on page 102.,Homework:,
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