中考复习备考《Writing Practice》教学课件(共26张PPT)

Writing Practice Qiaoyi Junior School Yao Wei * Our earth is badly polluted in so many ways. * What kind of pollution is it ? Discuss in groups : How to solve the water problem? Let’s watch a video! * Saving the water begins from myself. What kind of pollution is it ? Haze /heiz/雾霾(a kind of air pollution) 雾霾，是雾和霾的组合词。雾霾常见于城市。中国不少地区将雾并入霾一起作为灾害性天气现象进行预警预报，统称为“雾霾天气”。 雾霾是特定气候条件与人类活动相互作用的结果。高密度人口的经济及社会活动必然会排放大量细颗粒物（PM 2.5），一旦排放超过大气循环能力和承载度，细颗粒物浓度将持续积聚，此时如果受静稳天气等影响，极易出现大范围的雾霾。 * The main causes of haze? The first one : The second one : tail gas Industrial waste （[ɪn'dʌstrɪəl] 工业的） The dangers of haze to people and environment: * We can’t breathe the fresh air. It may make us have a bad cough and even cancer (癌症). The dangers of haze to people and environmen