Living with technology Module 7 Unit 1 Living with technology
Welcome to the unit
I. Lead –in What electrical and electric products do you have at home?
TV set remote control
refrigerator washing machine
air-conditioner microwave oven
desktop laptop
DVD digital camera microphone
MP4 MP3
telephone cellphone
electronic calculator tape recorder
II. The development of electric devices
Development of TV black-and-white TV colour TV LCD screen
laptop desktop Palm development of computer
Development of audio (音响) device gramophone (留声机) CD player radio/tape recorder MP3
beeper telephone letter/telegram development of communication cellphone
Development of dictionary electronic dictionary
Advantages or disadvantages III. Discussion: Advantages or disadvantages
Advantages: 1) meet people’s needs 2) improve people’s lives to some degree Disadvantages: 1) radiation may be harmful to people’s health 2) when people buy new electrical or electronic devices ,they throw away the old ones, which not only cause waste, but also be harmful to the environment
Summary With people’s hard work and intelligence, human beings own lots of useful and handy electric and electronic devices. These devices do make us save a lot of time and energy. Besides, they free us from heavy housework. But we should not depend completely on them. We human beings should make reasonable use of them so that we can relax ourselves and find pleasure and happiness in our life.
Word power
Guessing Game
It can be stationed on the wall It can be stationed on the wall. It can make our room warm in winter and cool in summer. An air-conditioner
It’s a type of oven which cooks food very quickly using microwaves. A microwave oven
A cabinet or room in which food is kept cold. A refrigerator
A electric machine for washing clothes. A washing machine
A electrical appliance that takes up dust, dirt, etc. by suction. A vacuum cleaners
air-conditioners TVs washing machines refrigerators vacuum cleaners household appliances
Household appliances: Description and Functions of household appliances: freezer section Refrigerators Electric rice cookers
microwave ovens washing machines
Works with Teflon Vacuum cleaners
Refrigerators ___________can have a freezer section at the top or the bottom.
Electric cookers _________________have been popular for a long time. They can also be used to cook other things.
Microwave ovens _______________are useful for both cooking and heating food.
washing machines Modern _______________ use digital controls.
Electric works ___________are usually coated with Teflon and easy to clean.
Vacuum cleaners _____________ are the best way to keep carpets clean.
Do exercises on page 7
Thank you!