Unit 3 Environmental Protection Reading and Thinking 课件-2024-2025学年高中英语人教版（2019）选择性必修第三册

Unit 3 Environmental Protection Reading and Thinking Before Reading 1. What is the graph about? What information can you get from it? 2. Have you ever seen the photo before? What might be the story behind it? Activity 1: Before you read, look at the graph and the picture below and discuss these questions in groups. Activity 1: Before you read, look at the graph and the picture below and discuss these questions in groups. 1. What is the graph about? What information can you get from it? 2. Have you ever seen the photo before? What might be the story behind it? No, I haven’t seen this photo before. The story may be that the polar bear suffered from the increasing global temperature. The graph is about the change of the global surface temperature. It shows that the global temperature is rising. Before Reading Activity 2: Read the text and answer the questions. 1. What happened to the polar bear in the photo? Why did the writer write about it? 2. Why is the “natural” greenhouse effect important and necessary? 3. What are the consequences of high greenhouse gas emissions? 4. Why did the author mention the climate scientists’ warning? 5. What is the author’s purpose of writing this text? While Reading 1. The polar bear in the photo died of starvation. The writer wrote about it because it showed one of the effects of rising temperatures due to climate change. 2. The “natural” greenhouse effect is important because it warms the Earth’s surface and keeps it habitable. 3. High greenhouse gas emissions lead to more heat energy being trapped in the atmosphere and rising temperatures. 4. Because the writer wanted to warn us of how urgent it was for us to take appropriate actions. 5. To arouse our awareness of the problem and encourage us to take appropriate measures to deal with global warming. Activity 2: Read the text and answer the questions. While Reading Fast reading. 1. What does the passage mainly tell us? A. Some polar bears died of starvation. B. What the greenhouse effect is. C. How the polar bears find food. D. Global warming has caused some disasters and we must pay attention to it. While Reading 2. Read the text and find out the main idea of each paragraph. Para. 1 A. We need to do something to reduce greenhouse gas emissions. Para. 2 B. The rise in temperature has caused natural disasters. Para. 3 C. Earth is getting warmer and warmer. Para. 4 D. A dead polar bear was found, which alarmed some experts. Para. 5 E. Why is Earth getting warmer and warmer? Fast reading. While Reading Careful reading. Read the passage carefully and choose the best answer. 1. From the second paragraph we can learn that . A. all the polar bears have died of starvation B. the expert knows nothing about the polar bear C. the polar bear couldn’t find enough food because of climate change D. the polar bear liked travelling long distances While Reading 2. According to the passage, help(s) Earth sustain life. A. the natural greenhouse effect B. the man-made greenhouse effect C. the carbon dioxide released into the atmosphere D. greenhouse gases produced by people Careful reading. While Reading 3. Which of the following statements is TRUE according to the passage? A. According to climate scientists, the warming trend will stop. B. Extreme weather results from the rise in temperature. C. People should burn more fossil fuels. D. It is the government’s responsibility to reduce greenhouse gas emissions. Careful reading. While Reading 4. We can learn from the passage that . A. it doesn’t matter whether we pay attention to global warming or not B. heat from the sun keeps Earth habitable C. the rise in temperature doesn’t affect people’s life D. the rise in temperature only affects some animals Careful reading. While Reading Activity 3: Read the text again and create a diagram describing how the greenhouse effect works. Draw a diagram Diagrams are very useful tools that can be used to brainstorm ideas, map out processes, show cause and effect relationships, explain a new idea or concept, and so on. When you read an essay about scientific issues, you can try drawing a diagram, which will not only allow you to visualize the problems more clearly but also can help demonstrate your creative thinking and problem-solving. After Reading Activity 3: Read the text again and create a diagram describing how the greenhouse effect works. After Reading Activity 4: Discuss these questions in groups. 1. What examples of extreme weather and disasters do you know? Can you make a list? 2. Do you think climate change is the result of human activity? Give your reasons. 3. Who do you think should take responsibility for dealing with climate change? What can we do? Homework Activity 4: Discuss these questions in groups. 1. Tornado, hail, typhoon, strong cold wave, sandstorm, etc. 2. Yes, I think so. It is the burning of fossil fuels by human beings that has added more heat to the atmosphere. 3. Everyone of us should take responsibility for it. We can buy things that are economical with energy and recycle paper bags, cans and bottles. Homework Goodbye! 学科网 rbm.xkw.com rbm.xkw.com 238278.3 $$