选修6 global warming 单元课件.ppt

Agreement Disagreement Exactly. All right. That’s right. That’s a good idea. I think so. I couldn’t agree more. That’s exactly my opinion. I don’t think so. I’m afraid not. I’m afraid I disagree with you. I’m afraid I have a different opinion.. I think you are absolutely wrong. The different ideas between Dr. Janice Foster George Hambley Dr. Janice Foster George Hambley Carbon dioxide has caused the global temperature to __________. An increase of five degrees would be a ____________ and could be ______________. More carbon dioxide is a __________ thing, which makes crops __________ and will encourage ____________________. go up catastrophe very serious positive produce a greater range of animals predict_____________ __________,________,______,____________________________, and ____________________________. The sea level ______________ ______________. others Some people rise by several metres severe storms droughts famines the spread of diseases the disppearance of species Other people’s idea floods Maybe… The sea level will rise. Maybe… There will be some disasters, such as… Flood! Drought Famine Forest Fire! … Discussion: What are the effects of global warming? Bad points: 1. The sea level to rise 2.Severe storms,droughts,floods, famines,the spread of diseases and the destruction of species. Good points: 1.Make plants grow faster 2.Crops will produce more 3.Encourage a greater range of animals Yes or no? 2. Should we do anything about global warming? 1.Do you think the risks of global warming are great? Debate We should do something about global warming. We should do nothing about global warming. Group A : Group B : What are problems facing the earth? Overpopulation * Unit 4 Global Warming warming-upReading Energy sources? International relations? Money? Technology? Which is the most important to a country? … Man power? energy sources We depend on energ