中考专题复习 Protect our environment (共21张PPT)

Protect Our EnvironmentProtect Our Environment the same place at different time in 1996 now The reason of the difference between the two pictures environment pollution air pollution Watch a video and thinkWatch a video and think Explore The coming of the air pollution poisonous gas 有毒气体有毒气体 industrial gas 工业气体工业气体 What can you see in the photos? plastic bag 塑料袋塑料袋 white pollution 白色污染白色污染 flood of the Yangtze River The reason of flood of the Yangtze River human activity 人类活动人类活动 vegetation destruction 破坏植被破坏植被 habitat 栖息地栖息地 desertification 荒漠化荒漠化 glacier melting 冰川融化冰川融化 How to improve our environment? air pollution: forbid the fatory from disorderly discharge white pollution : no longer use plastic bags vegetation destruction : not deforestation plant more trees Lets learn the new words forbid： fbd sb (from doing sth) 禁止；不准禁止；不准 poisonous:英英 pzns 有毒的有毒的;有害的有害的;恶意的恶意的; glacier:英英 glsi(r) 冰河，冰川冰河，冰川 habitat: hbtt 产地产地;（动物的）栖息地，住处（动物的）栖息地，住处; gas (n.) 气体气体;汽油汽油;瓦斯瓦斯;毒气毒气 poisonous gas 有毒气体有毒气体 vegetation vedten 植物（总称）植物（总称） destruction 英英 dstrkn 摧毁摧毁;破坏破坏 desertification 英英 dz:tfken 沙漠化沙漠化 melt melt 熔化，溶解熔化，溶解;逐渐融合逐渐融合;逐渐消失逐渐消失 glacier melting 冰川融化冰川融化 Please make a sentence forbid： sb (from doing sth) 禁止；不准禁止；不准 The government should forbid people from cutting down trees. poisonous The emission of poisonous gas can cause air to be polluted Grammar: Passive Voice structure: be done The floor was swept. 地板地板被被打扫了打扫了 The glass was broken by the boy. 杯子杯子被被那个男孩打破了那个男孩打破了 这个工作这个工作做完做完了了 The work has been done. Grammar: Present Perfect structure: have/has done He has lived here since 1978. 自从自从1978年以来年以来,他一直住在这儿他一直住在这儿. I have just turned off the light. 我我刚刚刚刚把灯关上把灯关上. She has taught in the school for ten years. 她在这所学校教书她在这所学校教书已经已经10年了年了. Grammar: Present Perfect have/has 在前面，过去分词在后面在前面，过去分词在后面 以前以前(before)从来不从来不(never)出现出现 最近最近(recently)曾经曾经(ever)一两遍一两遍(once.) 自从自从(since)刚刚刚刚(just)一段后一段后(for+一段时间一段时间) 今天今天(today)已经已经(already)很明显很明显 1.I _ the book for 20 years. A buy B have bought C have had D have been 2.I _ Australia twice.What about you? A went to B have been to C had been to D would go to Single chooseSingle choose C B 1.我刚刚丢了的化学书我刚刚丢了的化学书 I have just lost my chemistry book. 2.我以前从来没去过那个农场我以前从来没去过那个农场 I have never been to the farm bedore. 3.他已经吃过午饭他已经吃过午饭 He has already had lunch 4.你已经看过这部电影了吗？你已经看过这部电影了吗？ Have you seen the movie yet? T Translation exercisesranslation exercises Oral Composition 假如你是中学生假如你是中学生John，你想就环境保护的问题向，你想就环境保护的问题向市领导写一封信谈谈你的想法。市领导写一封信谈谈你的想法。 内容：内容： 本市存在的环境问题及造成的影响本市存在的环境问题及造成的影响 针对问题提出的合理化建议针对问题提出的合理化建议 Summary 1.passive voice structure: be done 2.present perfect structure: have/has done Homework Writing: 假如你是中学生假如你是中学生Tom，你想就环境保护的问题向，你想就环境保护的问题向市民发出呼吁，希望市民一起行动起来，保护生市民发出呼吁，希望市民一起行动起来，保护生态环境，共筑美好家园。以上述材料为题材，写态环境，共筑美好家园。以上述材料为题材，写一篇不少于一篇不少于100词的作文。词的作文。 Thank you for your cooperationThank you for your cooperation