Unit4《Globalwarming》thethirdperiod课件（新人教版选修6）.ppt

;Unit 4; Teaching methods situational teaching method ; cooperative learning method; programmed teaching method; task-based and assessment teaching methods.;Teaching aims and demands;Arrangement of teaching;;The Earth Is Becoming Warmer – But Does It Matter?;Fast Reading;It has a title, a first paragraph that runs across the page and is in bold, the main text in two columns, graphs/diagrams, two quotes.;Reading comprehension;Sophie Armstrong wrote the magazine article. The name of the magazine is “Earth care”.;3.What do they think about global warming? Do they agree with one another?;4.What are the two graphs about?;5.What is the main topic of the article?;1.The temperature last century didn’t increase much. 2.Everyone believes that global warming is caused by the activities of humans. 3.Janice Foster believes that global warming is caused by burning fossil fuels. 4.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. ;Detailed-Reading ;listening;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;3. How has the global warming come about?;4.What are the effects of global warming?;;1. What is the purpose of the paragraph that is in