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

UNIT 3 ENVIRONMENTAL PROTECTION Learning Objectives By reading, explain causes and negative effects of global warming; Be aware of the importance of cutting greenhouse gases and take effective action to do it; By teamwork, present how to solve the problem of global warming in groups. Warming-up What does the video mainly talk about? Climate Change Requires The World`s Attention --by Alice Xu Reading and Thinking What does the graph show ? The graph shows the change in the Global Surface Temperature between 1920 and 2016. Temperature Anomaly(n.异常) The Global Surface temperature is abnormal and rising. Pre-reading 5 While-Reading Q1. What's the type of this text? A. Argumentative writing B. Narrative writing C. Expository writing D. Advertising writing C Q2. In which part of a newspaper or magazine may we find this passage? A. Entertainment B. Economy C. Education D. Environment D 本文是一篇说明文。说明文是客观说明事物的一种文体，以解说或介绍事物的形状、性质、成因、构造、功用、类别等为主要内容。说明文主要通过对客观事物或事理的介绍说明，达到以知识教人的目的，因此说明文以客观、准确为基本要求，强调科学性和客观性。 Skim for text type.(1min) Task 1 7 Read for main ideas.(2mins) Para.1 Para.2 Para.3 Para.4 Para.5 D. The problem: the earth is getting warmer and warmer. . B. The causes: the greenhouse effect A. The influences: the rise in temperature C. The solutions: require the attention of people all over the world. Task 2 E. A case:a polar bear was starved to death. Para.1: Problem Para.2: case/example Para.3: Reasons/Causes Para.4:Influences/Impacts Para.5: Solutions The structure of the passage The development of the passage. problem example causes influences solutions [ɪkˈspɒzɪtərɪ] Expository writing 本文按照“现象—原因—危害—措施”的逻辑顺序展开，环环相扣，步步深入。标题Climate Change Requires the World’s Attention点明了作者的诉求：气候变化对地球生态系统的影响是巨大的，需要全人类共同关注和面对。 10 Climate Change Requires the World`s Attention Problem Solutions Causes Influences Scanning: mind map Evidence1:____________ Evidence2:____________ Evidence3:____________ problem case _____________________ (P1:para1-2) (P2:para3) P3:(para4) P4:(para5) Task 3 a warming ocean and atmosphere melting ice rising see levels the death of a polar bear (para.2) (para.1) climate change starved to death travel longer to find food bears couldn`t hunt low sea-ice levels Find the cause and effect that led to the death of the polar bear.(1min) What is the root cause? Task 3 Listen to Para. 3 and find information about “greenhouse effect”.(2mins) __________ greenhouse effect _________ greenhouse effect causing Earth’s surface temperature ______________ if too much heat energy is _______ keeping Earth’s climate _______ and __________ natural man-made warm habitable to rise quickly trapped Task 4 Careful Reading 13 Create a diagram describing how the greenhouse effect works. Heat released back into space greenhouse gases in the atmosphere trap some heat short- wave radiation atmosphere sunlight 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 visualise the problems more clearly but also can help demonstrate your creative thinking and problem-solving. The difference between natural greenhouse effect and man-made greenhouse effect 15 Read Para. 4 and sort out the information. The rise in temperature and led to examples results Q: What are the consequences of the global temperature rise? serious damage, costing human lives extreme rainstorms, heatwaves extreme weather natural disasters (2mins) 16 Read Para 5 and answer the questions(2mins) 1.What can be done to solve the global warming? Governments: need to make policies and take appropriate actions and measures to reduce greenhouse gas emissions. To arouse our awareness of the problem and to inspire readers to take proper actions to deal with global warming. Para. 5 Individuals: should reduce our “carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce. 2. What is the author’s purpose of writing this text? Post-reading for critical thinking and talking Group Discuss What can you do to reduce “carbon footprint”? (4mins) What we can do to reduce“carbon footprint” Post-reading for critical thinking and talking What we can do to reduce“carbon footprint” 1.Take the stairs instead of the elevator. 2.Go to school or work by sustainable transports 3.Turn off the lights when you are not in the room. 4.Use recycled bags, bottles and baskets. 5. Buy things made from recycled materials. 6.Plant more trees. 7.Put on more clothes instead of turning up the heat. 8.Talk with family and friends about global warming. ... ... Climate Change Requires the World`s Attention Problem Solutions Causes Influences Evidence1:____________ Evidence2:____________ Evidence3:____________ problem case _____________________ natural greenhouse effect _________________________ extreme weather _____________ government:_______________ _________ : __________________ results:_______ ________________________ P1:(para1-2) P2:(para3) P3:(para4) P4:(para5) a warming ocean&atmosphere melting ice rising see levels the death of a polar bear (para.2) (para.1) man-made greenhouse effect natural disastes serious damage, costing human lives, economic losses individuals make policies and take appropriate actions and measures reduce “carbon footprint” Summary Earth provides enough to satisfy every man’s needs, but not every man’s greed. — Mohandas K. Gandhi 地球能满足人类的需要，但满足不了人类的贪婪。 we should cherish what we have and do whatever we can to make the world a better place, leaving the green mountains and blue waters for our offsprings. 1.Write a composition on “saving energy in the home”. 2. Design a poster to call on more people to deal with climate change. Homework Only by changing the way we treat the environment can we get along well with it. 只有改变我们对待环境对方式，我们才能与之和睦相处。 Only by saving the environment can we save ourselves. 只有保护环境，我们才能保护我们自己 Lucid waters and lush mountains are valuable as "mountains of gold and silver". 绿水青山就是金山银山。 If we don't save water, the last drop of water will be our tear. 如果我们不节约用水，那么最后一滴水将会是我们的眼泪。 Let’s keep the words in mind: Thank you for your attention ! null 64939.02 $$