高中英语_高中英语4.4 Global warming教学课件设计.ppt

人教版高二英语选修6  Unit4 Global Warming Writing 点我 地球怎么了？ What happens to the earth? 地球变暖的 原因 factory fumes Vehicle/car exhaust 汽车尾气 There are more and more private cars. What’s the harmful effects of global warming? 全球变暖的危害是什么？ Glacier melt drought floods What measures should we take to reduce the global warming? 面对日益恶化的环境，我们能做什么？ We should plant more trees . The plants can turn carbon dioxide into oxygen. We should go to work on foot or ride a bike instead of driving private cars if possible. We should not use plastic bags. If you feel hot or cold, please take off or put on clothes rather than turn up the heat. 如果你不用电灯，电视，电脑等，就把他们关掉。 If you are not using the lights, TVs, and computers, turn them off. 当堂演练 How can you design a writing about global warming? 地球热了（phenomenon)—— 变暖的原因(reasons)—— 变暖的危害(harmful effects) —— 采取的措施(measures)—— 合作探究 Groups 1 and 2 Reasons Groups 3 and 4 Effects Group 5 and 6 Measures 句型连接 With the development of economy; As economy develops…… ……,which is considered to be…… This is the reason why…… It is……that…… I would rather do than do…… 7.Measures should be taken to stop……from…… 8. To solve the problem, you can do the following things. Firstly,…Secondly,…Finally/Last but not least… 9.Here are a few suggestions that will reduce the carbon dioxide content in the air. 10. It’s a good idea to do … 巧妙串联， 合理优化 With the economy developing, more and more greenhouse gases are being released into the air. CO2 makes up about 70% of the greenhouse gases, which is considered to be one of the greatest causes of global warming. It has harmful effects, causing the sea level to rise and many natural disasters to happen. Here are a few suggestions that will reduce the carbon dioxide content in the air. 完美呈现 Firstly, we should use more clean energy and less coal and oil. Secondly, we should go to work on foot or by bus instead of driving a car if possible. Besides, we should plant more trees to absorb t