介绍班级的英语作文可以这样写：

My class

This is my classroom. It's bright and clean. There are two blackboards in our classroom. One is on the front wall. It is for our teachers 。

A diverse and lively group

My class is a diverse and lively group of students. We come from various cultural backgrounds and have different interests and talents 。

希望这些示例能帮助你写出一篇精彩的班级介绍英语作文!