为了提高学生自身素质，你校正在开展“创建文明班级，区建和谐校园”活动，请根据以下内容，以“A Meaningful Activity”为题写一篇英语短文，介绍有关情况。
主题：同陋习告别，与文明握手。
目的：根除乱扔、乱吐，留长发，吸烟，喝酒等现象； 提倡穿校服，讲礼貌。
内容：举办图片展，进行教室和宿舍美化评比等。注意：1 词数100左右。2 参考词汇：和谐的 harmonious 与文明握手meet civilization

A Meaningful Activity
　　In order to improve the quality of the students, our school has now started an activity called"Build Civilised Classes and a Harmonious Campus".The topic is to get rid of bad habits and meet civilization. liuxuepaper.com
　　Bad habits do exist. Some students throw rabbish and plastic bags everywhere or spit in public. Some boy students wear long hair. Others are even addicted to smoking and drinking. We require that students break away from these bad habits .We urge the students to wear their school uniforms and be polite to others.
　　During the activity, we'll have picture shows, competitions of classrooms and dormitories decoration.