Unit 3 Environmental Protection Reading and Thinking 课件-2022-2023学年高中英语人教版（2019）选择性必修第三册

Book 6 Unit 3 Environmental Protection What do you know about climate change? 1. Prediction 2. What is the style of the passage? A. Narration 记叙文 B. Exposition 说明文 C. Argumentation 议论文 Exposition is used to explain, describe, give information or inform. Divide the passage into four parts 1 2 3 4 5 The evidence of dramatic climate change Cause Consequences Solutions Part 1：Para1-2 What is the graph about? What information can you get from it? The earth is getting warmer and warmer in nearly a hundred years. Para 2 climate change had to travel greater distances to find food bears couldn't hunt seals low sea-ice levels starved to death Put these events in order Q: How does climate change impact wildlife? climate change low sea-ice levels bears couldn't hunt seals had to travel greater distances to find food starved to death Global warming is an issue affecting all of us on this planet. It requires the attention of people all over the world. Part 2: Cause Q: Is greenhouse effect entirely harmful? =keep/maintain life维持生命 habitat 栖息地 habitable 可栖息的 keep Earth’s climate warm ,habitable and sustain life natural greenhouse effect burn too much fossil fuel → produce huge extra CO2 → trap too much heat energy →global warming man-made greenhouse effect Greenhouse effect The causes necessary A big problem heat released back into space heat enter atmosphere as short-wave radiation _____________________________________ __________________________________ Greenhouse gases trap some of the heat in the atmosphere and keep earth’s climate warm and habitable. If more heat energy is trapped, it will cause global warming. Diagram: how greenhouse gases increase Earth’s temperature Part 3: Consequences the rise in temperature extreme weather/ natural disasters extreme rainstorms , heatwaves serious damage, costing human lives, deaths and economic losses led to results examples Name other terrible consequences of global warming. NASA's satellite shows fires aro