Focus on global warming.ppt

1、Senior English For Vocational SchoolStudents Book 1,Unit 15 Environmental protection Period 3 Reading,Focus on global warming Background and Vocabulary,Teaching Aims:,Be familiar with the topic “Global warming”. Discuss how to reduce the greenhouse gases. Learn and master the useful words and phrase

2、s,Review,Whats the environmental situation today?,New Lesson,1. Vocabularies in the text “Focus on global warming”,incurable adj.不能治愈的,plague n.瘟疫；灾难,atmosphere n.大气；气氛,global warming 温室效应,hurricane n.飓风,tornado n.龙卷风,Common Knowledge,龙卷风、飓风与台风区别： 龙卷风是极具强烈破坏性的漏斗状旋转风旋转速度可高达每小时500 英里，并可在几秒钟内毁灭所有在它经过时遇

3、到的东西。 飓风hurricane 和台风typhoon其实都是指风速达到33米/秒以上的热带气旋，只是因为发生的地域不同，才有了不同的名称。 发生在大西洋、加勒比海和北太平洋东部的则称为“飓风” ；出现在西北太平洋和我国南海的强烈热带气旋被称为“台风” 。,飓风hurricane 影响的范围,台风typhoon 影响的范围,2. Useful Sentences,1.With the possible exception of another world war or incurable plague, global warming may be the largest threat to

4、our planet. 除了可能爆发的另一次世界大战或出现不能治愈的瘟疫之外，全球变暖可能是对我们这颗行星的最大威胁。,2.What could be the results if we dont curb the greenhouse gas emissions? Low-lying nations could be flooded, rain and drought patterns across the world could change, hurricanes could become more frequent, and El Ninos could become more int

5、ense. 如果我们不能减少温室气体的排放，那后果会是怎样的呢？地势低洼的国家可能会被洪水淹没，全球雨带和旱区的模式可能会发生改变，飓风可能会出现的更频繁，厄尔尼诺现象可能会变得更加剧烈。,3.Actions can be taken to slow global warming. 应该改采取行动减缓全球变暖。 4. But we must be fully aware that global warming is a huge problem. 但是我们应该充分意识到，全球变暖是一个巨大的问题。,3. Vocabulary Development:,可持续发展 可再生能源 白色污染 酸雨 二

6、氧化碳 温室效应 自然保护区 世界环境日,Sustainable development Renewable energy White pollution Acid rain Carbon dioxide Greenhouse effect Nature reserve World Environment Day,Discussion,What can we do to protect our school environment?,Summary and Homework,We have discussed a serious problem Global Warming. How to reduce greenhouse gases is an important task. We have learned some words