(
课件网) 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 What leads to the melting of glaciers Ice is breaking off from glaciers. Global warming. in the Artic and Antarctica. I. Lead-in 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 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. Learning objectives 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 The polar bear looks skinny, and might die of disease or a lack of food. II. Pre-reading 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 Para 1: the evidences of dramatic global climate change Read for the main ideas Para 2: a case of global warming and its impact on Earth’s ecology Read for the main ideas Para 3: the cause of global warming——— the man-made greenhouse effect Read for the main ideas Para 4: the effects of the rise in temperature Read for the main ideas Para 5: the solutions to reducing greenhouse gas emissions Read for the main ideas Para 1: the evidences of dramatic global climate change Para 2: a case of global warming and its impact on Earth’s ecology Para 3: the cause of global warming———the man-made greenhouse effect Para 4: the effects of the rise in temperature Para 5: the solutions to reducing greenhouse gas emissions Read for the main ideas III. While-reading The phenomena/evidence of dramatic global climate change The causes of the increase in the global average surface temperature The effects/consequences of the rise in temperature The solutions to reducing greenhouse gas emissions Read for the main ideas expository Extend the mind map based on t ... ...
