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1、 M7 Unit1Living with technology2021/8/11 星期三1What would life be like without them?Free talk:2021/8/11 星期三22021/8/11 星期三3audio devices2021/8/11 星期三4Reading:TV and audio devices -a reviewa report of past events2021/8/11 星期三5Guess according to the title:What does the passage talk about?What is the writ
2、ers purpose in writing the passage?2021/8/11 星期三6How is the passage organized _.A.by paragraphs B.in chronological order C.by concepts D.by sub-topicsFast-reading:T2021/8/11 星期三7(by _ of equipment)_history of TVtypes(in order of_)Early history of_ goes digitalTVAudio devicesEarlytimemodernSoundage:C
3、able TV,satellite TV,digital TV,The _audio devicesTape recorders and players2021/8/11 星期三8careful-reading:specific yearsthe events2021/8/11 星期三9history of TVYearEvent First public showings of wireless TV transmissions were made in the USA.Cable TV began in the USA;3 American scientists invented the
4、transistor.19511962International standards for digital TV were established.First WebTV set-top boxes came onto the market.19251948Colour broadcasts began in the USA.Satellites began to be used to broadcast TV.198919962021/8/11 星期三10Listen and answer:1.Who might be the inventor of the first TV?A.Vlad
5、imir 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.2021/8/11 星期三11careful-reading:specific yearsthe e
6、ventsaudio devices2021/8/11 星期三12audio devicesYearEvent 18771954First LPs(long-play records)came onto the market.198219871992First 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 availab
7、le.Development of MP3 technology started in Germany.Development of MD player began.19582021/8/11 星期三131.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 we
8、bsites 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:2021/8/11 星期三146.6.对对作出贡献作出贡献13.13.彩色的彩色的14.14.黑白电视黑白电视19.19.比比好好;优于优于22.22.有机会使用有机会使用25.25.上市上市26.26.做问卷调查做问卷调查27.
9、27.与其他观众聊天与其他观众聊天32.32.被手动上发条被手动上发条38.38.电流电流45.45.声音数字化声音数字化.52.52.正如名称所示正如名称所示16.16.花了花了5050年才有年才有6666的美的美国家庭拥有了它国家庭拥有了它.contribute to in colourblack-and-white TVbe superior tohave access tocome on to the marketrespond to questionnaireschat to other viewersbe wound up by handan electric currentSou
10、nd goes digital.as the name indicatesIt took 50 years before 66percent of American households had it.Underline the phrases.2021/8/11 星期三15advantagesdisadvantages discussion:2021/8/11 星期三16meet 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 up2021/8/11 星期三17Read the text and try to memorize the words and expressions.Do Language practice on page 102.Homework:Homework:2021/8/11 星期三182021/8/11 星期三19