拯救地球(Saving the earth) -环境教学课题

拯救地球(Saving the earth) 课题： 拯救地球(Saving the earth)  年级： 高中二年级第一学期第九单元第33、34课 目的'： 通过学习，使学生了解地球上土地荒漠化、空气和水的污染及动植物生存环境恶化的情况，培养学生以积极的态度善待周围的环境，从而为保护我们整个地球的环境做出自己的贡献。 工具： 世界地图或地球仪 　    The area of desert in the world is growing every year. Many parts of the world, which once had large popluations and produced plenty of crops, have become deserts....    Air pollution comes from factories, power stations and cars. Chemicals in the smoke from power stations cause a lot of damage.They can travel hundreds of miles in the wind, before falling to the ground in the rain....    Water pollution is caused by waste from factories and cities. Oceans are able to clean themselves , but certain seas, once they become dirty, are not able to do so....    Many of the animals are dying out. It is thought that between the years 1550 and 1950 an average of one kind of living things died out each year. By 1985 this had risen to one per day. Between 1980 and 2000 we may lose another half a million different kinds of living thing....Notes:    Activity 1:    Write the word/phrase which matches each description. The first letter of each word/phrase is given to help the students. The Ss should do this exercise individually. Check the answers with the whole class at the end of the activity.   Activity 2:    Write true if the statement is true. If false, change the underlined term to make the statement true. The students should do this exercise individually. Check the answers with the whole class at the end of the activity.    Activity 3 is an interview activity. The students are required to do in the following steps:     1. Read the report from a newspaper.     2. Divide the class into groups of four. Suppose one is a journalist     from China Environment News. He is interviewing the other three      about the event from the factory authorities, the local residents association, and the NEPA(国家环保总局).    3. Before the interview activity, the teacher gives each group the three cards which show what the three sides may say. (See teaching tips for activity 3)    4. Start the interview activity within the group.    5. Choose one or two groups to report their activity to the whole class.    (J. = Journalist; F. = Factory authorities; R. = Resident; S.=Scientist from NEPA)Matching

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