Unit 4 Global Warming

1. Unit 4Global Warming Period I Warming up www.themegallery.com

2. Things that use energy around us : www.themegallery.com

3. Place and The Related Energy windmills wind www.themegallery.com

4. Place and The Related Energy a coal power station coal www.themegallery.com

5. Place and The Related Energy oil refinery oil www.themegallery.com

6. Place and The Related Energy nuclear power plant nuclear www.themegallery.com

7. Place and The Related Energy solar panels solar power www.themegallery.com

8. Place and The Related Energy a hydro-electric dam water www.themegallery.com

9. Energy at Home things using energy sources of energy • Coal • Oil • Natural gas • Wind (wind power) • Sun (solar energy) • Uranium (nuclear energy) • Water (hydro-electric power) • Hot springs or geysers (geothermal energy) • The sea (tidal energy)_ • Lights • Heating • Television • Cassette player • Video recorder • Computer • Fridge • Stove • Washing machine • Hairdryer www.themegallery.com

10. Energy at Home renewable or not sources of energy • Coal • Oil • Natural gas • Wind (wind power) • Sun (solar energy) • Uranium (nuclear energy) • Water (hydro-electric power) • Hot springs or geysers (geothermal energy) • The sea (tidal energy)_ • Non-renewable • Non-renewable • Non-renewable • Renewable • Renewable • Non-renewable • Renewable • Renewable • Renewable www.themegallery.com

11. Words study Unit 4 Global warming Intensive reading www.themegallery.com

12. ? Pre-reading WINTER Picture reading www.themegallery.com

13. Picture reading How does it work? trap the heat from the sun keep it from escaping warm A greenhouse www.themegallery.com

14. Greenhouse gases Greenhouse Greenhouse Effect www.themegallery.com

15. Picture reading www.themegallery.com

16. Picture reading www.themegallery.com

17. ★ ★ Fast Reading Skim the article: Who wrote the article? What is the name of the magazine? What are the names of the three scientists mentioned in the article? Tip: In English, some nouns begin with a capital letter, such as names of people and places, titles of magazines, newspapers, stories and books, people’s titles, etc.. www.themegallery.com

18. Let’s check it: Sophie Armstrong Earth Care Dr Janice Foster, Charles Keeling, George Hambley www.themegallery.com

19. ★ ★ ★ What is the writing style? A.Expositive (说明文) B. Practical (应用文） C. Argumentative(议论文） D. Narrative（记叙文）  www.themegallery.com

20. The organization of an expositive essay: A title Introduction Para.1 Body Para.2-5 Para.6 Conclusion www.themegallery.com

21. ★ ★ ★ Look through the main text: Body Conclusion Introduction II Para. 2-4 I IV Para. 1 Para. 6 III Para. 5 www.themegallery.com

22. ★ ★ ★ Match the parts with the main ideas: • Explain how global warming comes about. Part 2 • Introduce the topic of global warming. Part I It’s up to readers to think and decide whether people should do something about global warming or not. Part 4 • List two different attitudes among scientists towards global warming. Part 3 www.themegallery.com

23. ★ ★ ★ Match the parts with the writing skills: • Usinga question, leaving readers to think over the issue Part 4 • Giving examples, using graphs, explanation Part 2 Part 3 • Giving examples, making contrast (comparison) Part 1 • Raising a question www.themegallery.com

24. ★ ★ ★ ★ ★ ★ ★ ★ ★ The 2 graphs are used to explain points by providing . Detailed reading Read the 2 graphs: evidence Evidence or argument? www.themegallery.com

25. ★ ★ ★ Detailed reading Read something more about the 2 graphs: The 1stgraph shows the global t between 1860 and . The temperature i and decreased over this period but on the whole it i by around one degree Fahrenheit. During this time, the earth reached its l temperature in about 1910 and its highest in . There was a steady increase in the temperature during the 20 years after 1980. We can see from the graph that the earth has become w since early last century. emperature 2000 ncreased ncreased owest 2000 armer www.themegallery.com

26. ★ ★ ★ Detailed reading arbon The 2ndgraph shows the amount of c d in the atmosphere from to 1997. The Co2 c steadily i over this forty-year period. It went up from 315 to parts p million. ioxide 1957 ontent ncreased 370 er Tip: While reading a graph, you’d better pay attention to the numbers. www.themegallery.com

27. ★ ★ ★ Detailed reading Are these statements true or false? 1. The temperature last century didn’t increase much. 2. It is believed that globalwarming is caused by the activities of humans. 3. Janice Foster believes that global warming is caused by burning fossil fuels. 4. George Hambley is worried about the effects of carbon dioxide on plant growth. 5. It is clear what the effects of global warming will be. F T T F F www.themegallery.com

28. ★ ★ ★ ★ Detailed reading Read the article carefully. What do the 3 scientists think about global warming? Do they agree with one another? They don't agree with each other. www.themegallery.com

29. ★ ★ ★ ★ Detailed reading Read the article carefully. Dr. Janice Fosterthinks the effects of global warming could be very serious. George Hambleythinks global warming will be mild with few bad environmental consequences. Charles Keelingbelieves it is the burning of more and more fossil fuels that is resulting in a big increase in carbon dioxide. Dr. Janice Foster thinks the effects of global warming could be very serious. George Hambley thinks global warming will be mild with few bad environmental consequences. Charles Keeling believes it is the burning of more and more fossil fuels that is resulting in a big increase in carbon dioxide. Dr. Janice Foster thinks the effects of global warming could be very serious. George Hambleythinks global warming will be mild with few bad environmental consequences. Charles Keeling believes it is the burning of more and more fossil fuels that is resulting in a big increase in carbon dioxide. thinks the effects of global warming could be very serious. thinks global warming will be mild with few bad environmental consequences. believes it is the burning of more and more fossil fuels that is resulting in a big increase in carbon dioxide. www.themegallery.com

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33. Maybe… The sea level will rise www.themegallery.com

34. Maybe… There will be more disasters, such as… flood! Famine! forest fire! … www.themegallery.com

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36. Group Discussion What should our government do to slow down global warming? www.themegallery.com

37. 1.Give money to green the surroundings and protect the forests. www.themegallery.com

38. 2.Encourage people to find and use more renewable energy. www.themegallery.com

39. rare plants rare animals 3.Make laws www.themegallery.com

40. 4.media www.themegallery.com

41. Let’s join hands to protect our home. One world, one dream! www.themegallery.com

42. Assignment • Talk about the effects of global warming. • Think about what individuals should do. • Call on people to protect the earth and design a slogan(口号）. Everyone can make a difference