Earth is our mother.Without earth ,without life.It provides us with enough water，food，sunshine,mineral and so on.I can even say we can only live in the earth .There may isn't any celestial body like earth that our human can live .But there is only one earth in the world,so please protect it ,protect our "mother",we can do it from little things such as saving water,planting trees and so on. So please do it right now,for ourselfs,for our younger generation. 地球是我们的母亲，没有她就没有生命。她给我们提供了水，食物，阳光和矿物质等。

我们只能生活在地球上，可以说再没有哪个星球我们人类能居住了，但地球只有一个，说以我们要好好保护她-我们的母亲，我们可以从一些小事做起像节约水植树等。现在就开始做吧，为了我们自己，也为了我们下一代。