1. M7 U1 Living with technology Welcome to the unit

2. What electronic products do you have at home? Which do you think is the most useful? Why?

3. Electronic appliances

4. refrigerator washing machine

5. microwave oven air-conditioner

6. electric rice cooker drinking machine

7. water heater vacuum cleaner

8. mobile phonesdigital cameras

9. MP4 player MP3 player

10. electronic translator electronic dictionary

11. Do you think these products have made our lives more convenient? Why? Are they helpful or just make you lazier? What do you think life would be like without them? How have different electronic devices changed over time?

12. The development of some electric devices: development of TV black-and-white screen colour screen LCD screen What kind of a TV do you have at home? What other functions does a modern TV have?

13. Early TV was in ______________ and had bad ________ pictures. black and white fuzzy

14. What differences can you find between the TV in your home and the TV in this picture? Early TV had antennae on top. The _____ was very small and could show only black- and-white pictures. The size of the TV was small _________ with modern TV, and usually it looked like a _______ box. Early TV also did not have a ________ control. The control panel was on one side of the screen. screen compared wooden remote control

15. desktop laptop/ notebook palmtop development of computer

16. What functions does a computer have? … Now we can record music using computers.

17. What did people need when they wanted to record music in the past? Tapes and a tape recorder. Look at the picture. What devices do people need to record music now? A computer, an MP3 player and some recording software.

18. How do People record music using a computer? People copy the music from a CD to the computer using recording software. The music will then be digitalized in and played by an MP Player. ( 数字化 ) digitalized

19. development of dictionary dictionary electronic dictionary Dictionaries never looked like this before.

20. How do you look up a word in a paper dictionary? The words in a paper dictionary are arranged in alphabetical order from ‘A’ to ‘Z’. We need to look at the first letter of the word and use it to search in the dictionary. If two words start with the same letter, we look at the second letter to decide the alphabetical order. If the first and second letters are the same, we look at the third letter and so on.

21. How many of you have an electronic dictionary? How do you look up a word in such a dictionary? We key in the word we want to look up and click the button ‘Enter’. Then the word entry will appear on the screen.

22. Besides the dictionary, what else can be stored in your electronic dictionary? There can be a calendar, a list of addresses and phone numbers, memos or a clock. More recent electronic dictionaries have large memory space and some can be used as electronic books with hundreds of books stored inside. Which do you prefer, an electronic book or a traditional paper book? Why?

23. With the mobile phones, we can keep in touch with others _________ we are. wherever

24. How did people keep in touch in the past? People sent letters in the past, ______ letters were slow, and they took from a few days to several months to arrive. ______,people invented the telegraph, but the telegraph could send _____ short sentences.____, people could communicate via telephone, but the disadvantage was that not everyone had a telephone. but Then only Later

25. Now, people use e-mails to communicate. E-mails are quick, but people _________ computers and access to the Internet cannot send e-mails. Today, most people use mobile phones to keep in _______ with others. The ____ of a mobile phone is small so people can carry one in a pocket and receive and make calls wherever they are and _________ it is. without touch whenever size

26. What recent developments have been made to mobile phones? send text messages be used as digital cameras to take still or even moving pictures send the pictures they take to other mobile phones or e-mail addresses be connected to the Internet be used to look at web pages receive TV signals so that people can watch live TV programmes

27. Many high school students bring mobile phones to their schools. Do you think high school students should use mobile phones at school? Why or why not?

28. How have these inventions improved people’s lives? Technological developments in the last few decades have been ____________! breathtaking

29. meet people’s needs improve people’s lives to some degree help people save a lot of time make our lives more convenient Something in common:

30. Besides the advantages, what are the disadvantages of these products? ● The radiation from some of the electrical and electronic devices, such as mobile phones, may be harmful to people’s health. ● We cannot ignore that every year electronic waste is increasing considerably, much of which will do great harm to our environment if not properly dealt with.

31. 1.Collect more information about the development of some electronic devices. 2.Preview the Reading part. Homework ：