Dear classmates:

　　I'm Li Hua After the discussion we found that 70% of the students think they should take all kinds of exercise every day but not spend too much time. They think exercise builds body and can keep them healthy. Sports also let them have a good rest so that their study will be more effective.

　　On the other hand 30% students believe taking exercise is tiring and it's a waste of time. They say that after having sports they are too excited for a long time to focus on their lessons. And it's possible to be hurt while doing sports.