高中英语Unit1Living with technology reading课件人教选修七

1、2021/8/11 星期三1 M7 Unit1Living with technology2021/8/11 星期三2What would life be like without them?Free talk:2021/8/11 星期三32021/8/11 星期三4audio devices2021/8/11 星期三5Reading:TV and audio devices a reviewa report of past events2021/8/11 星期三6Guess according to the title:What does the passage talk about?Wha

2、t is the writers purpose in writing the passage?2021/8/11 星期三7How is the passage organized _.A. by paragraphs B. in chronological order C. by concepts D. by sub-topicsFast-reading:T2021/8/11 星期三8(by _ of equipment)_history of TVtypes(in order of_ )Early history of_ goes digitalTVAudio devicesEarlyti

3、memodernSoundage: Cable TV, satellite TV, digital TV, The _audio devicesTape recorders and players2021/8/11 星期三9careful-reading:specific yearsthe events2021/8/11 星期三10history of TVYearEvent First public showings of wireless TV transmissions were made in the USA.Cable TV began in the USA; 3 American

4、scientists invented the 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 星期三11Listen and answer:1. Who might be the invent

5、or 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. 2021/8/

6、11 星期三12careful-reading:specific yearsthe eventsaudio devices2021/8/11 星期三13audio 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

7、by using digital technology were made available.Development of MP3 technology started in Germany.Development of MD player began.19582021/8/11 星期三141.Who might have attributed to the development of the Walkman?A. two Japanese engineers. B. three American scientists.C. Thomas Edison. D. Emile Berliner

8、. 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:2021/8/11 星期三156.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

9、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 colourblack-and-white TVbe superior tohave access tocome on to the marketrespond to questionnaireschat to other viewersbe wound up by handan electric currentSound goes digital.as the name indicatesIt took 50 ye

10、ars before 66percent of American households had it.Underline the phrases.2021/8/11 星期三16advantagesdisadvantages discussion:2021/8/11 星期三17meet 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