文档介绍：Learning Aims: develop the students' reading ability by skimming and scanning the . To learn about some health problems and how to live a healthy develop students' sense of cooperative learning(合作意识).RevisionWords and phrases:cigaretteadolescent ustomwithdrawal mentaldecide ,, ......;;;智力上的SingingHealthyDancingHealthyPlaying basketballHealthySmoking, coughing(咳嗽)UnhealthyWhat do the pictures tell us?Smoking mitting progressive suicide(慢性***) many parts does the reading text consist of? wrote the letter? To whom?3. Why did he write the letter? JamesGrandad