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人教版选修六unit4 global warming period7writing

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?We mustРTask 2 Summarize plete structure of expository writing.РDo you know what's this ?environment problem?РHaze [hez]!РStep2 BrainstormingРTask 1 Watch the video about haze and answer the following questions.Р1)What cause the formation ? of haze?Р2) How does it affect people’s ? life?Р3) What can we do to prevent ? it?РQuestions:Р1)What cause the formation ? of haze?Р2) How does it affect people’s ? life?Р3) What can we do to prevent ? it?РTask 2 Discuss and find information to get outline more detailed.Рwords you can use: ?automobile exhaust(汽车尾气)?emission/i'mɪʃn/(废气排放)?coal(煤) burning ?cutting down trees?toxic/'tɑːksɪk/(有毒的) gas ?breathe /briːð/?lung/lʌŋ/(肺)cancer?cough/kɔːf/咳嗽?maskРstructures you can use: ?It is caused by...?It makes/ leads to/ causes...?We should/must/need to do...

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