Unit 3 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

Unit 3 Where do you think this photo was taken? What does this photo make you think of? I think this photo was taken in either the Arctic or Antarctica, as those places have large ice sheets like this. The photo makes me think of the problem of global warming. What can you see in the photo? What’s happening? Where is it? What do you know about glaciers melting on earth? What will happen if glaciers are melting faster than before? How do you feel when you look at the picture? Earth provides enough to satisfy every man’s needs, but not every man’s greed. — Mohandas K. Gandhi What is the difference between “needs” and “greed”? Can you brainstorm some examples of “needs” and “greed”? How do you understand the quote? How is it related to the theme of the unit? To discuss climate change To learn to identify the style of this text and infer the writer’s purpose To learn to draw a diagram To think about how we can do to deal with climate change Climate change is a heat topic for the scientists around the world. They all try to find out the truth about these questions: What causes climate change? What are the solutions to stop climate change? View the video. What other consequences may global warming bring about? Global warming animals dying the rise of sea level unpredictable future of human coastal cities submerged extreme weather economic losses natural disasters The graph shows the change in the Global Surface Temperature between 1920 and 2016. It shows the temperature anomaly, which shows how much the temperature has risen above what it would usually be at a base level. Before you read, look at the graph and the picture on Page 26 and discuss these questions in groups. 1. What is the graph about? What information can you get from it? In which year did the temperature start to increase quickly? why? What do you think may have caused the global temperature rise? Greenhouse gas emissions Deforestation Industrialization and human activities Changes in land use Natur