约1770字。

　　Unit 1 How often do you exercise? 第四课时教学设计
　　单元
　　名称 Unit 1 How often do you exercise? 课时安排 
　　第四课时
　　教学目标 1．能够谈论关于自己和他人健康方面的话题并恰当运用频率副词和短语。
　　2．学习完成任务所需要的语言：
　　1) 词汇：habit, try, of course, look after, lifestyle, grade, better, same, as, different, difference, unhealthy, yuaybe, although
　　2) 句子：Is her lifestyle the same as yours or different? What are the differences?
　　I try to eat junk food only once a week.
　　My healthy lifestyle helps me get good grades. 
　　So maybe I'm not very healthy, although I have one healthy habit.
　　3. 完成课本第5页3a, 3b, 3c和 4 的教学任务。
　　教学
　　内容 环节
　　突出                             教师活动                 学生活动
　　复习
　　回顾 
　　板书单词unhealthy
　　1. Hello, boys and girls. Nice to see you again. Did you read the listening part aloud after class? 在课后你大声朗读听力材料了吗？Do you remember Katrina and Bill? Ｗho is healthy？
　　Yes. Because she eats a lot of healthy food．Then what is healthy food?
　　Very good. And what is unhealthy（手指板书） food?
　　What is junk food?
　　Yes. And coffee is also unhealthy drink.
　　2. So we must eat healthy food. What else should we do if we want to keep healthy?
　　1. Katrina!
　　Milk, vegetables, fruit
　　Junk food！
　　Cola, chocolate, chips ...
　　2. S1: We should often exercise.
　　S2: We should have enough sleep.