牛津深圳版英語(yǔ)七下chapter5electricityppt課件-文庫(kù)吧資料
2024-11-27 06:13本頁(yè)面
【正文】 2.The more the young students worked, the more energetic they became. 這些年青學(xué)生們?cè)礁稍接袆拧hapter 5 Electricity Task 1 What do we know about energy ? What is it ? It’s the power that makes things work . Lead in What happens if a machine doesn’t have energy ? It doesn’t work . Task 2 Invisible 看不見(jiàn)的 flow through a wire, like water What do we know about electricity ? Can we change electricity into energy ? What kinds ? ? Task 3 Heat energy Movement energy Light energy Sound energy Look at the following things . What kind of energy do they produce ? Discussion: Light energy Light energy Sound energy Movement energy Heat energy Light energy Movement energy Heat energy Movement energy air –conditioner washing machine vacuum cleaner rice cooker television iron fridge fan microwave oven recorder radio torch kettle How many home appliances can you tell us in our life ? What kinds of energy do they produce ? Where does electricity e from ? Task 3 1. Through thin wires . 2. Be connected to cables buried under the ground. 3. A power station. electricity n. 電 electrician n. 電工 There is a problem with the electricity in Tom’s flat . An electrician has e to deal with it . electric a. 電的 electric storm electric shock electrical a. 電氣科學(xué)的 electrical apparatus 電器 electrical engineer Words and expressions in Reading A What do you know about: change v/n. 變化 We can’t see electricity , but we can change it into energy . Great changes have taken place in Shenzhen since 1980. changeable a. The weather is changeable on top of the mountain . n. 找頭；（找回的）零錢(qián) Here is your change. energy n. Young people usually have more energy than the old. 年輕人通常比老年人有活力。
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