模块七第一单元Welcome to the unit

• Which do you think is the most important?Why? Is there anything that you don’t think is useful?
Do you know how have these electrical and electronic devices
desktop
Palm
development of computer
laptop
How did people record music in the past?
Put the tapes into the recorder, then play the tape with music at one side and play the record button at the other side to record the music onto the blank tape.
flatiron vacuum cleaner
electromagnetic oven electric rice cooker
cooking utensils
kitchen ventilator
（炊具）
(油烟机)
desktop
laptop
DVD
digital camera
microphone
What else can be stored in your electronic dictionary ? There can be a calendar, a list of addresses and phone number, memos or a clock. More recent electronic dictionary have large memory space and some can be used as electronic books with hundreds of books stored inside.
MP3
MP4
telephone
cellphone
electronic calculator
tape recorder
electric fan
hair dryer
• Microwave ovens • Refrigerators • TV sets • Air conditioners • Washing machines • Vacuum cleaners • Dishwasher • Computers • CD players • Mobile phones • Digital camera • Electronic dictionaries •…
dictionary
Unit
1
Wห้องสมุดไป่ตู้lcome to the unit
By：Lily Liu
Brainstorming:
What electrical and electronic products do you have at home?
TV set
air-conditioner
refrigerator washing machine
How do you look up a word in an electronic dictionary?
We key in（键入） the word we want to look up and
click the button ‘Enter’. Then the word entry will appear on the screen.
How do people record music using a computer?
Copy the music from a CD to the computer using recording software. The music will then be digitalized and stored in and played by an MP3 player.
developed?
• Look at the pictures below and describle what you see.
The development of electric devices:
colour TV black-and-white TV
LCD screen
Early TV had antennae(天线) on top. The screen was very small and could show only black-and-white pictures. The size of the TV was small compared with modern TV, and usually it looked like a wooden box. Early TV also did not have a remote control. The control panel(仪表板) was on one side of the screen.
How do you look up a word in a paper dictionary?
The words in a paper dictionary are arranged in alphabetical order(字母顺序) 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 the second letters are the same, we look at the third letter and so on.