1. The evolution of video and sound devices
Book 10_课件_U1_Reading2-8
Unit1 Reading 1
The evolution of video and sound devices

2. New words study
( P4 D )

3. Lead-in
Where is this piece of writing taken from?
What is it about?

4. 1. P2 A John Logie Baird. Thomas Edison.
The Portable cassette players.

5. Reading strategies
What do you think is the best way to get the most important information in such a long passage?
Follow the chronological (按时间顺序的) order.
P4 C2

6. 1887—Emile Berliner invented a record
player that used discs to record on.
1925—The first public TV broadcasts were
made, in the USA.
1929—Regular public broadcasting began in London.
1938—The first colour TV programme was
broadcast.
1962—Satellites were used to broadcast TV.
1967—Regular colour TV broadcasts began
in the UK.
1982—The first CDs were made available.
1993—The VCD was born.
1995—The DVD was invented.

7. Reading strategies 2 Subtitles are helpful!
How is so much information organized?
Take a close look at the structure of the passage and you’ll find out:
Subtitles are helpful!

8. P4 C1
1. F F F T 5. T

9. Understanding difficult sentences
1. Regular public broadcasting followed shortly after, first beginning on 11 May 1928 in New York.
Regular public broadcasting followed shortly after.
Regular public broadcasting first ____ on 11 May 1928 in New York.

10. 2. Satellites were used to broadcast TV beginning in 1962.
Satellites were used to broadcast TV and this ____ in 1962.
3. … broadcast the signals they get from satellite receivers to the population living nearby.
… broadcast the signals they get from satellite receivers to the population ____ ____ nearby.

11. 4. … adopt many of the principles first discovered by Fransworth.
…adopt many of the principles ____ ____ ____ ____by Fransworth.
5. … and so satellite dishes can often be seen distributed throughout the countryside and the remote areas.
… and so you can often see ____ ____ ____ throughout the countryside and the remote areas.

12. 6. … it was not until 1938 that the first colour TV programme was broadcast.
7. Technology is now changing faster than most people can keep pace with.
Most people _____________________.

13. a summary
Can you briefly introduce the evolution of video and sound devices?

14. Homework
KYB Period2