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课件网) 新人教版选择性必修三Unit3 Reading and thinking Discuss climate change Contents 3 2 1 Lead-in Reading Language points Lead-in 1. Before you read, look at the graph and the picture below and discuss these questions in groups. 1）What information can you get from the graph 2）What might be the story behind the photo The global surface temperature rose from 1920-2016. The story is that the polar bear might have starved to death. Video Time: The story behind the picture Reading 2) In which part of a newspaper or magazine may we find this passage A. Entertainment B. Economy C. Education D. Environment 1) According to the passage, help(s) Earth sustain life. A. the natural greenhouse effect B. the man-made greenhouse effect C. the carbon dioxide released into the atmosphere D. greenhouse gases produced by people Fast reading 1. Read the text quickly and choose the best answer. 4) What does the passage mainly tell us A. Some polar bears died of starvation. B. What the greenhouse effect is. C. How the polar bears find food. D. Global warming has caused some disasters and we must pay attention to it. 3) We can learn from the passage that . A. it doesn't matter whether we pay attention to global warming or not B. heat from the sun keeps Earth habitable C. the rise in temperature doesn't affect people's life D. the rise in temperature only affects some animals 2. Match the main idea of each paragraph. Para. 1 Para. 2 Para. 3 Para. 4 Para. 5 A. The danger of rising temperature B. We should seize every opportunity to reduce global warming. C. A major reason of global warming is “man-made”greenhouse effect. D. A specific example of the results of climate change E. The earth is getting warmer. E D C A B 3. Answer the questions. 1. What happened to the polar bear in the photo Why did the writer write about it 2. Why is the “natural”, greenhouse effect important and necessary The polar bear was found dead and all that remained was just “skin and bones”. The writer wants to arouse our awareness of climate change. Greenhouse gases in the atmosphere trap the heat from the sun and keep Earth's surface warm and habitable. Without this process, Earth could not sustain life. 3. What are the consequences of high greenhouse gas emissions 4. Why did the author mention the climate scientists' warning 5. What is the author’s purpose of writing this text It can lead to extreme weather and natural disasters. Because it is essential that we take action, so it needs to be brought to everyone's attention. To show us how serious the globle warming is and arouse our greater awearness of environmental protection. Careful reading 1. Read Para.1-2 and answer the question. What is the evidence of climate change a warming ocean and atmosphere melting ice rising sea levels a dead polar bear Definition Definition Function A big problem Function Heat from the sun enters the atmosphere and warms Earth’s surface as short ... ...
