unit4《Globalwarming》period12warmingupandreading1课件31（人教版选修6）.ppt

;;Things that use energy around us or at any other places:;Things that use energy;Windmills, renewable.;What? What kind? Renewable?;What? What kind? Renewable?;What? What kind? Renewable?;What? What kind? Renewable?;Guess it!;What source of energy?;Geothermal (地热的) Energy Plant; ;What are fossil fuels?;What about the weather?;The sun.; How about the plants?;If lack of solar energy, the plants…;Greenhouse gases!;Let’s see the following picture about it.;Global Warming;Read the passage again to find out the answers to the questions in Ex.1;1.Who wrote the magazine article? What is the name of the magazine? 2.What are the names of the three scientists mentioned in the article? ; → There are some very different attitudes among scientists towards this issue. Some think the effects will be terrible, while some others believe that we should not worry about it. ;→ The first graph shows the temperature increase of one degree Fahrenheit between 1860 to 2000. The second graph shows the carbon dioxide content in the atmosphere from 1957 to 1977. → Global warming / the warming of the earth; Read the passage carefully and judge whether the statements are true or false? The temperature last century didn’t increase much. Everyone believes that global warming is caused by the activities of humans. Janice Foster believes that global warming is caused b the burning fossil fuels. Natural gas is a greenhouse gas.;5. Carbon dioxide is a byproduct of burning fossil fuels. 6. People accept Charles Keeling’s 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 the effects of global 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.; How many parts can the text be divided into? Tips: Part 1 (para __) Part 2 (para ___ to ___) Part 3 (para ___ to ___) Part 4 (para ___ to ___);