2010年菏泽市骨干教师评选英语讲课课件global

鄄城县第一中学 祁秋娟,全球变暖视频,What happened in the video?,What has caused these phenomena?,Unit4 Global Warming Reading The Earth Is Becoming Warmer But Does It Matter?,Read the passage quickly and silently, try your best to grasp the main idea of the whole passage. 1.Whats the passage mainly about? 2.Wheres the passage probably taken from? 3.Whats the authors attitude towards the effects of global warming?,1.Whats the passage mainly about? Global warming / the warming of the earth. 2.Wheres the passage probably taken from?( ) A. A science fiction B. A travel journal C. An environmental magazine D. A health magazine, , ,C,3. Whats the authors attitude towards the effects of global warming? ( ) A. actually global warming is good for man. B. we should do nothing about the global warming. C. catastrophes will happen if the globe keeps on warming. D. a lot remains to be found out about the effects of global warming.,D, , ,Read the passage carefully, and try to get some detailed information about the passage. The passage can be divided into four parts, please find out the main idea of each part.,Find out the main idea of each part. Part1(paragraph1) _; Part2(paragraphs2-4) _; Part3(paragraph5) _; Part4(paragraph6) _.,Find out the main idea of each part,Part 1: Part 2: Part 3: Part 4:,Introduce a debate over the issue of global warming. Explain how global warming comes about. List two different attitudes about the effects of global warming. Its time to think and decide whether people should do something about global warming.,Read part 1 and answer the following question. There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon. Whats the purpose of part 1? To introduce the topic of the passage.,Read part 2 and decide the following statements are true or false: 1.All scientists subscribe to the view that the increase in the earths temperature is due to the burning of fossil fuels. 2.Natural gas is a greenhouse gas. 3.Janice Foster made accurate measurements of the amount of carbon dioxide in the atmosphere. 4.They agree that the burning of more fossil fuels has resulted in the increase in carbon dioxide.,T,F,F,T,Charles keeling,How has global warming come about?,According to part 2, please think over the following question:,The increase of the earths temperature is due to_.,the burning of fossil fuels,Some byproducts of the burning process are called_, the most one of which is_.,“greenhouse” gases,carbon dioxide,If we add _extra carbon dioxide into the atmosphere, more heat energy will _be trapped in the atmosphere causing global warming. This phenomenon is called_.,huge quantities of,tend to,greenhouse effect,Different attitudes towards the effects of global warming between Dr. Janice Foster and George Hambley. (Read part 3 and fill in the blanks),go up,catastrophe,very serious,positive,produce,a greater range of animals,consequences,Whose attitude do you agree with, Dr Fosters or George Hambleys? Why?,the melting of glaciers,the rise of the sea level.,floods,severe storms,droughts,famines,the spread of diseases,the disappearance of species,What should we do about global warming?,Discussion,?,If we take good care of our environment, our world will be more beautiful.