【学习目标】
（1）掌握skimming和scanning两种阅读方法
（2）通过学习，掌握和运用课文中的7种句型句式
【重点难点】
What are the effect of global warming?
【学习内容】
一．Fast reading:
Part 1:Divide the passage into four parts and write down the main idea of each part?
Paragraph ________: The background of this article.
Paragraph ________: Explanation about how global warming comes about.
Paragraph ________: Two different attitudes among scientists towards global warming.
Paragraph ________: Two choices of dealing with this problem.
Part 2: Read the text again and choose the best answer.
1. How much did the temperature rise in the 1900s?
A. One degree Fahrenheit B. One Celsius
C. Two degrees D. Thirty degrees Celsius
