Unit 3 Environmental Protection Reading and Thinking 课件-2023-2024学年高中英语人教版（2019）选择性必修第三册

人教版 选性必修三 Period 1: Reading and Thinking Climate Change Requires the World’s Attention Unit 3 ENVIRONMENTAL PROTECTION 1 Starved polar bears Lead in The effects are destructive as follows: The sea level to rise. Severe storms, floods, droughts, famines, the spread of diseases, and destruction of species. Wide animals died because of starvation. Forest fire occurs frequently because of the extreme hot weather. What do you know about global warming? What is the graph about? 2. What information can you get from it? Research into the pictures It’s about the change of global surface temperature. It shows us that the global temperature is rising steadily and continuously. 2. What happened in the picture? What may be the cause of the death of the polar bear? Global warming causes the melting of iceberg and some polar bears may have suffered from the lack of food. A dead polar bear was found and it is “skin and bones.” Read the text and work out the main idea of each paragraph. 01 02 03 04 05 Global climate is changing dramatically. An alarming case about a bear starved to death What is causing the increase in the global average surface temperature The bad effects of the rise in temperature and the warning Further possible changes to the global climate and our duty Skimming Read the text and answer the questions: 1. What is the evidence of global warming? 2. Why is the “natural”greenhouse effect important and necessary? 3. What are the consequence of high greenhouse gas emissions? 4. Why did the author mention the climate scientists’ warning? 5. What is the author’s purpose of writing the text? Detailed-Reading 1. What is the evidence of global warming? 2. Why is the “natural ”greenhouse effect important and necessary? Because greenhouse gases trap heat and keeps the earth warm and habitable. Warming ocean and atmosphere; melting and rising sea level; the starved polar animals; the extreme weather and natural disasters Read the text a