邮件的具体格式你可以自己写 我可以把大致内容给你写一下 hi i am glad to hear you will come to beijing for studing. before you come here i hope you can get some piece of advices. when you come here you would better arrange you time available. before the class you can scan your book so that when you are in the class you will know what you should pay more attention.in the class you should listen and take notes carefully. after class you can look through book again. i hope you also should your body when you have free time you can take more excise and have more rest 我想这个大致够你应付老师