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Welcome to the unit板块：教学设计课件 作者：沈轶UnitUnit2 2Unit 2 Unit 2 1. What is the most impressive event in 2008 in Beijing? 2. But do you know some people were against holding the Olympic Games in Beijing? Why? sandstormSandstorm3. Actually, the environment has become a serious problem in the world. Can you think of other environmental problems nowadays?pollutiondroughtfloodtyphoonfireearthquakeacid rainGlobal warmingclear-cut logging(皆伐原木 ) What can we do to protect the environment?导
