一个案背景资料范××,男,十六岁,我校高一年级住校学生。军训后刚转到我班上的一位男生。初次见面,当我问他话时,他总是低头小声应答。当时除了觉得他长得眉清目秀、性格有些腼腆外,没有其他不良感觉。大约一周后,就开始出现许多不尽人意的状况了。先是陆续有同学报告他说脏话、不友好、对同学态度粗暴;接下来就开始出现不完成作业的现象,晚自修不安分,一直说话,大家安静写作业时,他有时会突然大叫一声,喜欢做一些莫名其妙的动作,引得大家哄笑;对 A case background information Fan × ×, male, 16 years old, my grade one high school students. Just after the military training to a boy in my class. When I first met, he always bowed and whispered when I asked him. At that time, in addition to thinking that he looks very bright, disconcerting, there are no other bad feelings. About a week later, many unsatisfactory conditions began to emerge. First, one after another classmate reported that he was abusive, unfriendly, his attitude towards students was brutal; then the phenomenon of incomplete homework began to appear, he was relieved from his studies lately, and kept talking. When he quietly wrote homework, he sometimes shouted suddenly, Like to do some inexplicable action, attracted everyone laugh; right