牛津版上海版八年級下冊unit3electricitymorepractice課件(完整版)
【正文】 __________________________________________ ? _______________________________________________ ? _______________________________________________ ? _______________________________________________ ? _______________________________________________ ? _______________________________________________ Electricity lights streets and buildings. Electricity heats food in cookers. Electricity drives trains. Electricity makes puters work. Electricity powers the underground. Electricity makes fans and air conditioners work in summer. A Look at the pictures below. Work in pairs and discuss what we must and must not do to save electricity. ____________________________________________________________________ _________________________
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