人教版B6+U4+Warming+up++Reading+40张.ppt

2. But there are some very different attitudes among scientists towards this issue.”“issue here means the same as the one in___ .A. I bought the new stamp the day of its issue. B. They are talking about one of the key issues in the election campaign.C. The government is expected to issue a statement about the election.D. The magazine has 12 issues each year. 3. The author probably agrees that ________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. Questionnaires -I 1.Does Sophie Armstrong support a clear opinion? 2.Does George Hambley believe that we should worry much about the global warming? No. he doesn’t state it clearly. No, he doesn’t. 3. How has the global warming come about? ①Human activity burning of fossil fuels. ② Greenhouse effect greenhouse gases we need those gases. ③ Huge quantities of extra carbon dioxidefrom 1957 to 1997from around 315 parts per million to around 370 parts per million. 4.What are the effects of global warming? ④ Encourage a greater range of animals. ①The sea level to rise. ② Severe storms, droughts, famines, the spread of diseases, and destruction of species. ③ Make plants grow faster. Crops will produce more. main idea Part1 (para1) Introduce a debate over the issue of global warming Part 2 (para2) Part 3 (para3-8) Part 4 (para9) Illustrate how global warming comes about List two different attitudes among scientists towards global warming It’s up to readers to think and decide whether people should do sth about global warming or not 4 parts 1. What is the purpose of the paragraph that is in bold? To introduce the topic. To illustrate(阐述) points by providing evidence. 2. What are the diagrams for? Questionnaires -II 3. Why are there two quotes? Because they are important or interesting points. Their aim is to attract your attenti