M7 Unit1 Living with technology

What would life be like without them? Free talk:

audio devices

Reading: TV and audio devices --- a review a report of past events

Guess according to the title: What does the passage talk about? What is the writer’s purpose in writing the passage?

How is the passage organized ___________________. A. by paragraphs B. in chronological order C. by concepts D. by sub-topics Fast-reading: T ① ②③ ④ ⑤

(by _______ of equipment) ______history of TV types (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 YearEvent First public showings of wireless TV transmissions were made in the USA. Cable TV began in the USA; 3 American scientists invented the transistor International standards for digital TV were established. First WebTV set-top boxes came onto the market Colour broadcasts began in the USA. Satellites began to be used to broadcast TV

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 t h e e v e n t s audio devices

YearEvent First LPs (long-play records) came onto the market 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.

advantages disadvantages advantages disadvantages discussion:

♠meet people’s needs. ♠ have improved people’s lives to some degree. ♦ radiation from them may be harmful to people’s 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.