Nowadays, the enviroment of our school is getting more and more pollute,so I think we should take action to protect them.Firstly, we do not throw rubbish inside or outside classrooms. It is easy to put our wastes in dustbins instead of throwing away. Secondly, we should not write or draw anything on desks or walls. I suppose that this action is not good because we are destroying the school property. Furthermore, the classrooms should be cleaned every day by not eating or making too many litters at chool. Finally, we should water trees and plants at school regularly. Morever, planting more trees help us to respiratory benefit and limit air pollution. In clusion, these ways bring us manu benefit becaus it is not only protect enviroment of school but only make us to become more healthy.