Unit 3 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 Lesson 1 Reading and Thinking What can you see in the picture? Glaciers are melting What might happen if the glaciers continue to melt? I. Lead-in What leads to the melting of glaciers? Ice is breaking off from glaciers. Global warming. in the Artic and Antarctica. a tsunami a rise in sea level I. Lead-in What might happen if the glaciers continue to melt? loss of wildlife habitat What other consequences might the global warming bring about? I. Lead-in more frequent wildfires longer periods of drought and heat waves in some regions an increase in the number and intensity(强度) of tropical storms Earth provides enough to satify every man's needs, but not every man's greed. ——Mohandas K. Gandhi I. Lead-in Learning objectives In this unit, you will: read about different environmental problems. listen to an interview with an expert and talk about air pollution. write a report on an environmental issue. learn more about environmental issues and ways to protect our planet. Lesson 1 Reading and Thinking Learning objectives In this lesson, you will: 1. learn about global warming and its causes, effects and solutions; 2. use mind map to analyze the main idea, structure and language features of an cause-effect expository essay; 3. think about what might help deal with the problem of global warming, and provide possible solutions. What might the passage be about? II. Pre-reading The graph shows us that the global surface temperature is rising continuously and dramatically in recent decades. What information can you get from the graph? II. Pre-reading What might cause the death of the polar bear? II. Pre-reading The polar bear looks skinny, and might die of disease or a lack of food. How would the pictures below be related to the topic of the passage? II. Pre-reading Read for the main idea of each paragraph III. While-reading Main idea The opening sentence The closing sentence Standout sentence Summarize by