I am Bill Jones. I am a teacher of English. My wife is Linda Jones. She is a nurse. We have a daughter and a son. We have many friends.
Look! These are my friends. This is Mr. Black. He is a worker. He works in a shoe factory He makes shoes there. That’s Mrs. Black. She is a worker on a farm near here. The girl is their daughter. She is a student. She is thirteen. The boy is their son. He is a young soldier（战士）. His name is Carl Black.

根据情境，按要求写作。

“曲圣”关汉卿骑着侧倾疾驰的摩托，欧阳修坐在电脑前聚精会神地上网，大词人辛弃疾举着双手摆出“V”字造型 ……这一幅幅涂鸦就出现在中学生的课本上。其实，课本涂鸦并非是新鲜事物，很多人在学生时代或许都做过类似的事情。记者随机采访了几位中学生，他们一致的观点是“好玩”，“有时上课觉得无聊，又不能随便说话，就在书上涂涂画画打发时间。”但教师们大都不赞成学生在课本上涂鸦，认为学生的课堂行为必须有规范和约束，自己的个性和爱好应该用适当的方式表现。

请你就“课本涂鸦”现象发表简要评论。

要求：态度鲜明，言之成理，条理清楚。字数在120—150之间。

世界卫生组织将“世界无烟日”定在每年的（  ）