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 Reading and Thinking ——discuss climate change 1 After this class, you will: l. learn more about different environmental issues. 2. analyse the cause and effects of global warming. 3. draw a diagram describing how the greenhouse effect works. Learning Objectives Warm-up Part 1 3 1. What can you see in the picture? 2. What is the cause of this phenomenon? Global warming A large piece of ice breaking off a glacier. 4 What other influences of the global warming ? HELP! 5 the rise of sea level dying animals tsunami 6 drought extreme weather earthquake 7 Pre-reading Part 2 8 Look at the graph and picture below and answer the following questions Q1. What's the type of this text? A. News report. B. Biography.传记 C. Expository essay说明文 D. Argumentation.议论文 Q2. What is the graph about? What information can you get from it? the change in the Global Surface Temperature between 1920 and 2016. It shows the temperature anomaly.(气温反常) The earth is becoming warmer and warmer. While-reading Part 3 10 Read for structure-find out the topic sentence Para 1-2 Para 3 Para 4 Para 5 The evidence of dramatic climate change that had an impact on Earth's ecology. The causes of the increase in the global average surface temperature. The consequences of the rise in temperature. The solutions to reducing greenhouse gas emissions Reading for structure problems causes consequences solutions Read for details Evidence (para 1-2) The ________ is getting warmer and warmer. Evidence 1: Evidence 2: Evidence 3: Earth a warming ocean and atmosphere melting ice rising sea levels climate change Evidence 4: a dead polar bear 13 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. Read paragraph 2 and put them in a correct logical order. What is the root cause? Cause and effect Read for details Causes (para.3) natural man-made Definition Heat from the sun enters the __________ and warms Earth’s __________ as _________-wave radiation. Function Keeping Earth’s climate warm and_____________ Definition People produce huge amounts of_________ greenhouse gases by burning_____________. A big problem More ________ energy is trapped in the atmosphere and causes Earth’s surface tempreature to ________ quickly. habitable extra fossil fuels atmosphere surface short heat rise Greenhouse Effect 15 Read paragraph 3,4 and create a diagram describing how the greenhouse effect works. Sunlight Atmosphere Reflected sunlight Heat released back into space Heat reflected back to Earth’s surface Read for details Consequences (para. 4) What are the consequences of the global tempreature rise? consequence not only . but also . extreme and causing deaths and economic losses extreme weather natural disasters causing serious damage costing human lives rainstorms heatwaves Read for details solutions (para.5) solutions governments make policies take appropriate actions and measures individuals reduce our “carbon footprint” by… educate everyone about global warming Climate change Evidence Solutions Causes Consequences governments individuals extreme weather natural disasters Greenhouse effect natural greenhouse effect man-made greenhouse effect Summary: A better understanding of climate change? Post-reading Part 4 21 discuss How can we reduce our carbon footprint? carbon footprint: the amount of carbon dioxide that a person or organization produces by the things they do, used as a way of measuring the amount of harm they do to the environment. turn electrical appliances off when not using them walk or ride a bike, don’t drive recycle cans, bottles, plastic bags and newspapers buy things made from recycled materials plant more trees talk with family and friends about global warming Homework 1. exercises related to the text( a paper) 2. make a poster about how to protect the environment. 24 THANKS! As we know，Earth is getting warmer and warmer, 1.which results in melting ice and rising sea levels. In 2013, a dead polar bear 2.was found(find)on Norway’s Arctic island of Svalbard. Experts said that it was low sea-ice levels 3.caused(cause) by climate change 4.that killed the polar bear. Scientists often mention that the “man-made” greenhouse effect is a big problem. 5.The rise in temperature has led to an increase in extreme weather and natural disasters worldwide, causing serious damage and costing human lives.The further global warming that results 6.from the continued greenhouse gas emissions 7.requires(require) the attention of people all over the world. Governments need to make policies and take measures 8.to reduce(reduce) greenhouse gas emissions. As individuals, we should also reduce our “carbon footprint” by 9.restricting(restrict) the amount of carbon dioxide our 10.lifestyles(lifestyle) produce. 课文语法填空 $$