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《Warm-up》集体备课教案优质课下载
Emotion aims：
1) The students are able to realize the importance of protecting our environment and heighten their awareness of environmental protection.
2) The students are able to take action to protect our environment with their efforts.
Teaching key points（教学重点）:
The key words and useful expressions about the environment.
To analyze the whole text and know about structure and the main idea of the text.
Teaching difficult points(教学难点):
1.To use the key words and expressions.
2. Understand the difficult sentences
Teaching methods（教学方法）:
1) Task-based and students-centered;
2) Individual work, pair work and group work
Teaching aids（教具）: multi-media; work sheets and blackboard
Teaching procedures（教学过程）:
Step 1 Lead-in
以戴着的口罩和柴静的调查视频《穹顶之下》 视频图片导入本课，引出Topic: Air pollution.
Step 2 Reading （阅读）
At the beginning, explain some reading strategies to the students.
Task1. Fast reading. (10mins)
Ask the ss to read the text as fast as they can. They should read it silently. Then answer the following questions:（ 方法引导：略读或浏览阅读，忽略不懂的句子和生词，快速阅读课文。目的只是为了了解阅读材料的内容大意，不求甚解。题目的作用不可忽略。）
True or False.
1.The sky is as blue as it used to be. ( )
2.There is more fresh air for people to breathe. ( )
3.That too many cars are running in the street causes traffic jams. ( )
4.The unreasonable production doesn’t cause pollution. ( )