约2140字。

　　人教版 高中英语 选修6
　　Unit 4  Global warming
　　Reading:  The earth is becoming warmer
　　—But Does it Matter?
　　Teaching aims:
　　1)Learn the causes of global warming and different attitudes.
　　2) Master the reading skills.
　　3) Save energy and prevent the global warming.
　　Important point:
　　understand the causes and effects of global warming 
　　Difficult point:
　　how to write a meaningful passage about global warming
　　Teaching methods:
　　individual, pair worp discussion
　　Teaching aids
　　a computer, some slides, a projector
　　Teaching procedures:
　　Step 1 Lead- in
　　1 Play a game—wheel of fortune
　　设计意图：激发学习兴趣, 为阅读课文做好铺垫
　　2 play a video and answer two questions
　　设计意图：提前预知课文内容以便更好理解
　　Step 2 Skimming
　　1 Structure of the passage
　　1 Introduction
　　2 Body
　　3 Conclusion
　　2 Match the main idea of each part
　　Part 1         (A) How has global warming come about?
　　Part 2         (B) List two different attitudes
　　Part 3         (C) Should we do anything?
　　Part 4         (D) The earth is becoming warmer
　　设计意图：整体把握文章结构，思路清晰，便于理解文章内容
　　Step 3 Scanning
　　1 Fill the table
　　1Who wrote the article? Sophie Armstrong
　　2What is the main idea of the passage? Global warming/
　　the warming of the earth.
　　3What are the names of the 3 scientists? Dr Janice Foster,
　　Charles Keeling,
　　George Hambley
　　2 The Outline of different opinions
　　Dr Janice Foster         Charles Keeling         George Hambley