情景：你刚上大学，想给高中班主任写一封信。

　　任务：请你用英语给高中班主任写一封50左右的信。告诉他：
　　1 你对大学生活的感觉如何；
　　2 大学与高中有什么区别；
　　3 简单谈谈自己的专业，课程情况。

　　请用下面格式：
　　Mr. Zhang ,
　　……外语学习网
　　Chen Feng

　　范文：
　　Mr. Zhang ,
　　Everything here is new to me . I think college life is very interesting . But we are busier at college than at middle school . And my classmates come from different parts of our country . The teachers use different ways of teaching too . I study physics . We have many course to attend . And we have to work hard to pass all the them .
　　Chen Feng