(课件网) UNIT 3 ENVIRONMENTAL PROTECTION Reading and thinking Learning objectives After this class, the students will be able to 1. grasp the main idea and the structure of the passage 2. figure out the causes and effects of climate change 3. Speak up their opinions on climate change, realizing the great influence from human activities on it. 4. raise their awareness of environmental protection. Activate and share 1.What is the video mainly about Polar bears starvation Low sea-ice level Natural disaster: drought Extreme weather :heatwaves economic losses Global warming melting ice the rising sea level 1.What is the video mainly about Read for textual structure Read the text and conclude the main idea of each paragraph. The evidence of dramatic climate change Para 1-2 Global warming problems A warming ocean and atmosphere Melting ice and rising sea Low sea-ice levels Bad impact on earth’s ecology (polar bears’ starvation) Para 3 The causes of global warming Q: What’s the function of the first sentence in the paragraph What’s the main cause of global warming Para 3 The causes of global warming causes Natural green house effect Man-made green house effect keep the earth's climate warm and habitable cause the earth's surface temperature to rise quickly Para 4 The effects of global warming effects Extreme weather Natural disaster examples results extreme rainstorms heatwaves cause serious damage cost human lives Para 5 The solution to global warming solutions governments individuals make policy reduce carbon footprint take appropriate actions and measures… seize every opportunity to educate 4. How to change a bad habit and create good ones. 3. The cycle of how habits are formed. 5. Changing habits gradually. 6. No easy way to change bad habits. 2. What a habit is. 1. Why bad teenage habits should be changed. Exposition (说明文) the problem the problem the problem raise analyse solve conclusion problem-solving pattern （问题解决模式） Unit 2 Reading and Thinking: Habits for a Healthy Lifestyle Make a mind map of the text’s structure. Read for textual structure Global warming problems causes solutions effects Cause-effect pattern Paras.1&2 Para.3 Para.4 Para.5 Q1. What's the type of this text A. News report. B. Biography. C. Expository essay. D. Argumentation. Q2. In which part of a newspaper or magazine may we find this passage A. Entertainment B. Economy C. Education D. Environment Text pattern 说明文常见语篇模式 Structure 结构特征 1. Description 事物描述 以描述为主介绍事物或者概念 2. Problem and solution 问题解决 提出问题--分析问题--解决问题 3. Cause and effect 因果关系 剖析现象背后的原因 4. Compare and Contrast 异同比较 比较两个人或事物的相似点或差异 5. Process/ sequence 程序解说 介绍流程步骤或工作原理 说明文常见语篇模式 Create a diagram describing how it works. Heat released back into space Heat reflected back to Earth’s surface Reflected sunlight Atmosphere Sunlight Read for details Ho ... ...
