关于环境保护（水资源节约）的话题
our environment is very important for our lives . we need the fresh air, the clean water and so on . in the past, there were many trees around us ,the air was fresh and the river was clean.but now,people cut down many trees. air pollution and water polloution are very serious . the environment around us becomes very terrible . we should protect our environment. first, we should plant many trees to keep water. second , we can ride a *ke or walk to the school and work.. third , we shouldn’t throw the dirty water into the river . fourth, we shouldn’t use the plastic bags. finally, we can ask * people to join us.
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