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

Unit 3 Environmental protection Reading and thinking Climate Change Requires The World’s Attention Learning objectives By the end of this class, we will be able to 1. know the main idea and the structure of the passage. 2. learn the “greenhouse effect” and create a diagram describing how it works. 3. figure out effective ways to deal with climate change What disasters are mentioned in the video? drought flood global warming animals dying fire Glaciers melting Consequences of global warming Look at the graph. What information can you get from it? What can you see in the photo? The earth is becoming warmer and warmer. Pre-reading The polar bear (北极熊) was skin and bones and starved to death. Q1. What's the type of this text? A. News report. B. Biography. C. Expository essay. D. Argumentation. Q2. In which part of a newspaper or magazine may we find this passage? A. Entertainment B. Economy C. Education D. Environment Read the text type In the expository text, the authors sometimes use some graphs or diagrams in their essays in order to convince their readers. Part 1 (para.1-2 ) Part 2 (para. 3) Part 3 (para. 4) Part 4 (para. 5) D. The evidence of dramatic climate change that had an impact on Earth’s ecology B. The causes of global warming A. The consequences of the rise in temperature C. The solutions to reducing greenhouse gas emissions Read and match the main idea with each part. What is the problem about climate change? Para 1 Read for details. The Earth is getting warmer and warmer. Evidence 3: ___________________ melting ice rising sea levels climate change Evidence 1: _______________ a warming ocean and atmosphere Evidence 2: ______________ Read for details. Para 2 瘦骨嶙峋 An example of climate change The news photo of a dead polar bear was taken in Norway’s Arctic of Svalbard in 2013. The polar bear was “ skin and bones”. Para 2: An example of climate change climate change starvation longer food-seeking travel lack of food low sea-ice level The following reasons account for the death of the polar bear, with one influencing another. Read paragraph 2 and put them in a correct logical order. What is the root cause? Read for details. Para 3 What are the cause of the increase in the global average surface temperature? __________ 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 Greenhouse Effect Function A big problem Read paragraph 3 and create a diagram describing how the greenhouse effect works. Heat released back into space Heat reflected back to Earth’s surface Reflected sunlight Atmosphere Sunlight The rise in temperature extreme weather natural disasters serious damage, costing human lives, economic losses leads to examples results What are the consequences of the global temperature rise? Read for details. Para 4 extreme rainstorms, heat waves What can be done to solve the global warming? Read for details. Para 5 solutions governments make policies take appropriate actions and measures individuals reduce our “carbon footprint” by… educate everyone about global warming Group discussion As a student, what can we do to reduce our “carbon footprint” ? plant more trees The ways to live a low-carbon lifestyle Take the stairs instead of elevator Don't litter Go to school by bike instead of by car/bus Turn off the lights when leaving Use handkerchief instead of facial tissue Use basket or environmental basket bag instead of plastic bag Climate change Problem Solutions Causes Effects government individuals extreme weather natural disasters Greenhouse effect natural greenhouse effect man-made greenhouse effect Summary Earth provides enough to satisfy every man’s needs, but not every man’s greed. — Mohandas K. Gandhi 地球能满足每个人的需要，但不能满足每个人的贪婪。 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. Critical Thinking HOMEWORK 1.Summarize the whole passage by drawing a mind map of your own. 2.Make a poster about how we can do to balance our needs and sustainable nature. Thank you for listening! Lavf58.20.100 null 239427.8 null 22386.982 Lavf58.20.100 null 64939.02 null 32522.725 null 45661.652 $