Unit 3-Reading(I)

How many electrical appliances can you remember ? air conditioner computer telephone rice cooker vacuum cleaner fridge microwave oven camera juicer TV torch hair dryer fan washing machine recorder electric iron heater cell phone DVD Electricity …...a kind of energy that we can not see sound energy light energy heat energy moving energy Yes, we can change it into four kinds of energy. Can we change electricity into different kinds of energy? ..

类型：课件 需要精品点：60点

上传者：root上传时间：2012-03-07 星级：四星级

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