Unit 3 Reading and Thinking阅读学案--高中英语人教版选择性必修第三册 -.docx

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1、课堂学生导学提纲（高二英语）Unit 3 Environmental ProtectionReading and ThinkingClimate change requires the worlds attention课型：新授课 课时：2课时班级:_姓名:_小组:_【学习目标】Teaching Objectives：1. To explain causes and negative effects of global warming2. To realize the importance of cutting greenhouse gases and take effective actio

2、n to do it 3. To learn to identify the style of this text and infer the writers purpose .了解感知 1. What causes the climate change?2. What are the solutions to stop climate change?_.深入学习Step 1 Pre-readingTask1. Read the pictures and answer some questions:What is the graph about? What information can yo

3、u get from it?_What happened in the picture? Do you know what caused it?_Task2. 根据课文内容选择正确答案What type of writing is this passage?A. Argumentative writing B. Narrative writingC. Expository writing D. Advertising writingIn which part of a newspaper or magazine may we find this passage?A. Entertainment

4、 B. EconomyC. Education D. EnvironmentTask3. Read the text and sum up the main idea of each paragraphPara1: Global climate is .Para2: An about a bear starved to deathPara3: What is causing the increase in the global temperaturePara4: The of the rise in temperature and the warningPara5: Further possi

5、ble changes to the and our dutyStep2. While readingTask1. StructurePartPara.Main idea11-2The of dramatic climate change that had an impact on Earths ecology23The of the increase in the global average surface temperature34The of the rise in temperature45The to reducing greenhouse gas emissionsPart 1

6、Evidence1. What happened to the polar bear in the photo? Why did the writer write about it? The polar bear in the photo . Because it showed one of the effects of due to climate change.2. Can you use your words to describe how climate change have influenced the polar bears life?Climate change low sea

7、-ice levels bears could not hunt had to travel greater distances to find food starved to death its dead body foundPart 2 Cause1. Why is the “natural” greenhouse effect important and necessary?The “natural” greenhouse effect is important because .2. the consequences of high greenhouse gas: 3. Figure

8、out the reason why earths temperature rising. “Natural” greenhouse effectGreenhouse effect “Man-made” greenhouse effectPart 3 consequences1. The consequences of global temperature rise: resultsThe rise in temperatureled toextreme weather/ natural disastersexample 2. Why did the author mention the cl

9、imate scientists warning?The author mentioned the climate scientists warning because it is essential that we and it needs to be brought to .3. What is the authors purpose of writing this text? Part 4 solutionsAs individuals, what can we do in our daily life to help to minimize climate change? Step3.

10、 Post-readingChoose the right item from the box to make the summary complete. Change the form when necessary.Starve, natural, ecology, natural disaster, carbon footprint, fossil fuelWarming oceans, melting ice and rising sea levels prove climate change is happening. Its shocking impact on Earths 1.

11、_ could be seen in a 2013 photo of a polar bear on the Norways Arctic island of Svalbard that had 2. _ to death. Unable to hunt seals as before, scientists concluded low sea-ice levels due to climate change had forced it to travel long distances to find food. When explaining climate changes causes,

12、scientists often talk about two types of “greenhouse effect” “3. _” and “man-made.” As the sun warms earth, greenhouse gases in the atmosphere such as methane and carbon dioxide trap some heat in, making Earth warm enough to live on. Extra man-made greenhouse gases from burning 4. _ trap even more h

13、eat in the atmosphere, leading to extreme weather and 5. _.Scientists warn of more disasters to come if this man-made global warming is not stopped. Both government and individual actions are required to reduce the carbon dioxide or “6. _” our lifestyles produce. So what will you do to help with the most serious issue?.课后思考Free Talk:In our daily life, what you should do to do to do with greenhouse effect?第 4 页 共 4 页What is worth doing is worth doing well.值得做的事情都值得被做好！学科网（北京）股份有限公司