Unit 3 Environmental Protection Reading and Thinking 课件-2025-2026学年高中英语人教版选择性必修第三册

该高中英语课件围绕“环境保护”主题，聚焦气候变化的证据、成因、影响及解决方案，通过“冰川之眼”图片分析、地球变暖图表解读、北极熊死亡案例讨论等导入活动，搭建从现象观察到深层探究的学习支架，引导学生逐步构建知识脉络。 其亮点在于融合思维品质与语言能力培养，通过批判性讨论（如“气候变化是否由人类活动导致”）、段落结构分析（Evidence-Causes-Effects-Solutions）及句型运用（如观点表达句式），提升学生逻辑思维与表达能力。采用任务型教学（绘制温室效应示意图、小组设计班级气候行动方案）和分层作业（基础背诵、提升写作、拓展实践），既落实语言知识，又培养环保意识与学习能力，助力教师高效开展主题式教学。

Unit 3 Environmental Protection Reading and Thinking 1. What can you see in the picture? 2.What is the cause of this phenomenon? Lead-in A large piece of ice is breaking off a glacier. Global warming (The ice is melting.) 2 Brainstorm: influences of the greenhouse effect? natural disasters extreme weather the rise of sea level dying animals coastal cities submerged Look at the graph. What is it about? What information can you get from it? What can you see in the photo? What might be the story behind it? The earth is becoming warmer and warmer. Before-reading The polar bear may have died because of lack of food. While-reading 1. What is the writing type of this passage? A. Argumentative writing. B. Narrative writing. C. Expository writing. D. Advertising writing. 2. In which part of a newspaper or magazine can we find this passage? A. Entertainment. B. Economy. C. Education. D. Environment. Summarize the main idea of each paragraph and the development of the whole passage 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。 Climate change Evidence Solutions Causes Effects careful reading draw a mind map Task 1 Evidence1:_______ Evidence2:_______ Evidence3:_______ problem example_______ natural greenhouse effect ____________________ extreme weather _____________ government: _________ __________: _______ function:____ problem:____ result:_______ (para1-2) (para3) (para4) (para5) example_______ Careful reading :Read for details Evidence (para.1-2) 1 The ________ is getting warmer and warmer. Evidence 1: Evidence 2: Evidence 3: Earth a ________ocean and atmosphere ice sea levels climate change Example 4: a polar bear warming melting rising dead Para 2: An example of climate change Time Where What happened Why did it happen 2013 Norway’s Arctic Island of Svalbard. A polar bear died of starvation. The bear cannot hunt seals as before. Read for details Causes (para.3) natural greenhouse effect man-madegreenhouseffect Function Keeping Earth’s warm and_____________ A big problem More ________ energy is trapped in the atmosphere and causes Earth’s surface temperature to ________ quickly. habitable heat rise Greenhouse Effect 2. Can you draw a diagram describing how the greenhouse effect works. Heat released back into space Heat reflected back to Earth’s surface Reflected sunlight 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. Para 4: The influences of the rise in temperature The rise in temperature led to extreme weather/ natural disasters example result extreme rainstorms, heat waves serious damage, costing human lives, economic losses Reading for the details (Para.5: solutions) solutions governments make policies take appropriate actions and measures individuals reduce our “carbon footprint” by… educate everyone about global warming Activity 1　Discussion 1．Do you think climate change is the result of human activity？Give your reasons.(Critical thinking) Yes，humans burn fossil fuels like coal，natural gas and oil to produce energy，along with some by-products called greenhouse gases like carbon dioxide，methane and water vapour，which trap heat from the sun and therefore warm the Earth.So，the growth of the greenhouse gas，carbon dioxide in the air actually comes as a result of things we do every day and the way we produce and use energy. Post-reading As a student, what can we do to protect the environment in our daily life? Group discussion Sentence patterns: 1 From my point of view , I think we can take actions from small steps in our daily life, for example: 2 In my view/opinion, we should put great efforts in changing it into a better place ,for instance/ such as 3 As far as I’m concerned, I suggest that each of us should do our parts to protect the earth,firstly...........secondly ................. ................................................... plant more trees Take the stairs instead of elevator Go to school by bike instead of by car/bus Don't litter Turn off the lights when leaving Use basket or environmental basket/ bag Climate change Evidence Solutions Causes Effects government individuals extreme weather natural disasters Greenhouse effect natural greenhouse effect man-made greenhouse effect A better understanding of climate change Summary 基础层（必做） 1.整理并背诵本课重点话题短语（如 climate change, greenhouse effect, carbon emissions, carbon footprint, fossil fuels 等），完成英汉互译。 2.口头复述文章“证据—案例—成因—危害—对策”的行文结构。 提升层（选做，二选一） 选项一：绘制本课完整思维导图，并分析作者使用了哪些写作手法（如：列数据、举实例、作对比、因果分析等）。 选项二：运用课堂所学表达句型，结合生活实例，撰写80词左右短文 My Contribution to Fighting Climate Change，至少使用5个本课核心话题短语。 拓展层（挑战） 以小组为单位，设计一份“班级气候行动方案”，需包含：目标、具体措施（至少3条）、预期效果，并尝试在真实生活中执行其中1-2条，下节课展示交流。 Homework x264 0.128.2216+688+32 a17ff54 tMod [8-bit@4:2:0 X86] $