Young people can have problems with their minds. Some students become (worry) because they have to study very hard. Others have trouble on well with people like their parents and classmates.
Liu Wei, a junior 2 student, could not understand his teacher and was doing (bad) in his lessons. He became so nervous he started to cut his finger with a knife.
student, Xiao Li, wasn't good with his roommate, Xiao Huang. He (kill) Xiao Huang by poisoning the water in the drinking machine in their dormitory.
A recent report (say) about 18% of teenagers have mental (精神上的) problems. Their troubles include being nervous and very (happy), and having problems in learning and getting on with others. Many students who have problems won't ask for (advise) or help. Some think they will look stupid (傻的) they go to see a doctor. Others don't want to talk about their secrets.