The second reason is that young students have not yet ripe for the development of mental, emotional and emotional stability is not, they better act on impulse, poor self-control and could easily lose their senses.

• 原因之二是，青少年学生心理发展尚未成熟，情绪和情感还不稳定，他们好冲动，自制力差，极易丧失理智。