1. The evolution of video and sound devices Reading (1)

2. Free talk What do you like to do in your free time? Do you often watch TV or play digital devices in your free time? How often do you use these digital devices? Do you like them? Are you interested in the evolution of video and sound devices?

3. Reading Strategy: understanding headings You may want to obtain some specific information as fast as possible when you are doing research. If a text has headlines, these are the first thing to look at. Headlines appear before each section of a text. They can show you how a text is organized, and give an idea as to the contents of each section.

4. Pre-reading Who developed the system used for most early TV broadcasts? Who made the first recording of a human voice? What were developed by the late 1960s? John Logie Baird Thomas Edison Portable cassette players

5. While- reading 1.The first long-distance TV broadcast was made between the UK and Germany. 2. Satellites were used to broadcast TV beginning in 1877. 3. Emile Berliner invented the modern record player in 1887 4. CDs and VCDs are often used for storing and playing music. 5. With the development of the digital technology, people will not use sound and video devices any more. F F T T F

6. Detail reading : Part 1 - 2 1. When and where were the first public TV broadcasts made? 2. Who made important breakthroughs in the development of TV in the late 1920s and early 1930s. 3. When was the first colour TV programme broadcast? 4. Why do people use satellite to broadcast TV? It was made in the USA in 1925. Philo Farnsworth, an American. Not until 1938. Satellite allow TV to be broadcast live over vast distances, with everyone receiving the same broadcast at the same time.

7. Detail reading : Part 3 In 1877, Thomas Edison made the first ______ of a human voice on his _________, the record player. Early record players used ______ ______ to record on. In 1887, Emile Berliner, a ________ living in the USA, _________ a record player that used discs as __________ to tubes, and so the modern record player was born. recordinginvention roundtubes German invented alternatives

8. Detail reading : Part 4-5 steel tape paper tape plastic tape heavy and difficult to use easy to use but often broke small and cheap enough

9. Post-reading Group discussion: 1. How does the digital technology influence our daily life? Can you give us some examples? 2. Is it good for us to keep pace with the development of digital technology? 3. How should we use the digital devices properly?

10. Homework Find out more information on video and sound devices on the Internet after class, and try to make a poster to show the evolution of video and sound devices.