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Unit 1 Living with technology Welcome to the unit(牛津译林版 选修七).ppt
1. Go over the content in this lesson. 2. Preview the next period, especially the new words in the instructions or requirements but not included in the wordlist. Can you think of the disadvantages or possible disadvantages of these electrical and electronic devices? The radiation from some of the electrical and electronic devices, such as mobile phones, may be harmful to people’s health. When people buy new electrical or electronic devices, they throw away the old ones. This may generate large amount of waste, which is harmful to the environment. 1. What can our human beings benefit from the development of electric and electronic appliances? Can we depend on these appliances completely? * Unit 1 Living with technology Leading-in What electrical and electronic products do you have at home? Which do you think is the most useful? Is there anything that you don’t think is useful? Why? Do you think these products have made our lives more convenient? Why? What do you think life would be like without them? Electronic appliances MP8 MP5 digital camera cell phone TV set PSP laptop DVD refrigerator washing machine microwave oven air-condition electric rice cooker electromagnetic oven kitchen ventilator (油烟机) vacuum cleaner How have these electrical and electronic devices improved our lives? Make a group of four and talk about their functions. washing machine refrigerator cell phone TV How to improve our life Device How to improve our life Device U-disk MP5/MP8 computer microwave oven air-condition Early TV was in black and white and had a poor picture. Speaking What kind of TV do you have at home? What differences can you find between the TV in your home and the TV in this picture? What kind of pictures did early TV have? The development of electric devices: development of TV black-and-white TV colour TV LCD screen Now we can record music using computers. In the
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