1、人教版选修 6unit4Reading-The earth is becoming warmer-but does it matter?Analysis of the textThis text belongs to book6unit 4,concerning global warming. The text mainly illustrates the cause of global warming, two different attitudes towards global warming and the possible effects of global warming. It i
2、s aimed at improving peoples environmental protective awareness. As a student ,we should try our best to reduce the release of carbon dioxide to prevent the earth becoming warmer, to make the earth a better place to live in. while explaining the text the author has used different writing styles: exp
3、lanation, graph, comparison.Analysis of the studentsThe students are senior two ,who can be armed with some basic knowledge of reading skills ,they can find the main idea ,giving key points of each paragraph. At the same time they can identify some simple writing methods, for example, comparison, ex
4、planation, using graphs or diagrams.Analysis of teaching methods来源:Zxxk.ComWe can show some slides suggesting global warming ,we can use scanning to ask questions about the cause, the two different attitudes, we can use detailed reading to further understand the text. we can also adopt group work to
5、 discuss the effect of global warming.Step 1 Lead in T: enjoy a video of global warming , ask students why the ice-cream meltSS: It is because global warming and global warming is because of greenhouse effect.设计意图：激发学生学习兴趣，为阅读课文做好铺垫。Step 2 Skimming1 the structure of the passage1 introduction2 body3
6、conclusion2 Match the main idea of each partPart 1 The earth is becoming warmer.Part 2 How has global warming come about ?Part List two different attitudes .part 4 Should we do anything?设计意图： 整体把握 文章结构，思路清晰，便于理解文章内容。Step 3 ScanningRead the text quickly and find the answer to the questions:1. Who wro
7、te the magazine article? What is the name of the magazine?Sophie Armstrong, Earth Care.来源:学科网2. What are the names of the three scientists mentioned in the article?Dr Janice Foster, Charles Keeling, George Hambley.3. What do they think about global warming? Do they agree with one another?They dont a
8、gree with each other. Dr. Janice Foster thinks the effects of global warming could be very serious.【来. 源：全, 品中& 高* 考* 网】George Hambley thinks global warming will be mild with few bad environmental 【来.源：全,品中&高* 考*网】consequences.【来.源：全, 品中& 高* 考*网】Charles Keeling believes it is the burning of more and
9、 more fossil fuels that is resulting in a big来源:Zxxk.Comincrease in carbon dioxide.The first graph shows the temperature increase of one degree Fahrenheit between 1860to 2000.The second graph shows the carbon dioxide content in the atmosphere from 1957 to 1977.4. What are the two graphs about?The fi
10、rst graph shows the temperature increase of one degree Fahrenheit between 1860to 2000. The second graph shows the carbon dioxide content in the atmosphere from 1957 to 1977.5. What is the main topic of the article?Global warming/ the warming of the earth.设计意图： 提高学生査读能力，练习阅读技巧。Step 4 Detailed reading
11、Read the passage carefully and judge whether the statements are true or false.1. The temperature last century didnt increase much.来源:Z&xx&k.Com2. Everyone believes that global warming is caused by the activities of humans.3. Janice Foster believes that global warming is caused b the burning fossil f
12、uels.4. Natural gas is a greenhouse gas.5. Carbon dioxide is a byproduct of burning fossil fuels.6. People accept Charles Keelings data because he took accurate measurements.7. Flooding could be one of the effects of future global warming.8. George Hambley believes scientists are just guessing about
13、 the effects of global 【来. 源：全,品中&高*考* 网】warming.9. George Hambley is worried about the effects of carbon dioxide on plant growth.10. It is clear what the effects of global warming will be.Keys: True: 3, 5, 6, 7, and 8 False: 1, 2, 4, 9, 10来源:学科网 ZXXK设计意图： 深化对文章内容理解，把握文章细节。Step 4 Group work-Discussi
14、on (enjoy a video of low-carbon lifestyle)As a student , what should we do as the global warming keeps going on?设计意图：，小组展示，升华感情目标，学以致用，具体如何做到保护环境，阻止全球变暖。Step 5 HomeworkMake a summary of the text.设计意图： 锤炼学生的分析概况能力。教学反思： 通过本课学习 ，学生基本掌握文章主要内容，也理清文章脉络，同时也提高査读，细读及分析概括能力，培养了爱护环境，保护地球能源的意识，深刻理解了全球变暖的危害及阻止全球变暖的重要性。不足之处，学生英语口语表达不充分，词汇量短缺有语法错误倾向，应进一步加强阅读与词汇的培养。
