My hometown There were many trees and clear rivers in many my hometown in the past.You can see it was hugged by the green trees and the fishes resident in the rivers. the buildings and streets were narrow,people worked and lived a poor life.In nowadays,the buildings has become hamper.there are too many cars in the street which was divered too fast by people.The worse environment is caused by the development of industries.it is also caused the discreasion of forsts and the extinction of the local fish.It is significent emergce to deal with the pollution.