Teaching aims（教学目标）
1.通过对本单元语法的复习与巩固，学会归纳与总结。
2. 通过对写作内容和写作方法的分析， 完成写作任务。
3.让学生学会有礼貌地询问信息，寻求帮助。
4. Language points（语言点）
要求掌握以下句式： Excuse me, do you know where I can buy some medicine?
Sure. There is a supermarket down the street.
Could you please tell me how to get to the pos t office?
Sorry, I’m not sure how to get there.
Go along Main Street until you pass Center Street. The bookstore is on your right, next to the bank.
