Living with technology
• 1925 wireless tv transmissions
• 1923-1927 early forms of tv invented
• 1928 first long-distance tv broadcast
• 1928-1929 regular public broadcasting
• 1929 color tv shown
• 1948 cable tv
• 1951 color broadcasts
• 1962 satellite tv
• 1989 international standards for digital tv
• 1996 webtv set-up boxes
step 2 reading the history of audio devices
1877 the first recording of a human voice
1931 the first tape recorders
1948 transistor invented
1954 cassette recorders developed
1958 the first lps (long-play records)
1979 the walkman introduced
1982 the first cds produced
1986 walkman was added to the oxford english dictionary
1987 development of mp3 technology started in germany
1992 the md player was developed
step 3 detailed questions
1. because many people contributed to the development of tv
2. because digital tv allows the same services to be delivered with clearer pictures than before.
3. webtv set-top boxes combines the tv set with the world wide web. with interactive tv programming, you can play along with game shows, respond to questionnaires and chat to other viewers.
4. the first record player had to be wound up by hand and only played a record for two minutes.
5. major corporations are taking over the portable music player market with mp3 players.
step 4 true or false exercises
true : 1267 false: 3 4 5
step 5 read the text again and choose the best answers according to the text:
ddbacc
reading strategy: understanding subtitles
tv early history of tv
(in order of time){the modern age: cable tv, satellite tv, digital tv
audio devices
early history of audio devices
(by types of equipment) { tape recorders and players
sound goes digital
fill in the blanks with words given in the box.
1 . wireless 2.broadcasting 3. britain 4. 65
5. 200 6. households 7. households 8. recorders 9. compact 10. germany
隨堂檢測：
1. contributions 2. 1925 3. 20 4. using 5. international 6. combines 7. recorded 8. available
9. germany 10. patent