The Importance of Trees(树的重要性)

                              The Importance of Trees
      As we all know, trees are very usel. They are of great benefit to man as follows: First, trees provide us with wood and other products; Second, their roots can allow the rain to sink in and keep the soil, so they to prnt droughts and floods. Trees can clean air and beautil life.
     Unfortunately, nowadays in many parts of the world lots of people fail to realize the importance of trees. They have cut trees down in large numbers without a plan,which makes the soil washed away. They don't know where there no trees, the rain washed away the suce of the soil and this causes floods.
     We ought to plant trees each year and carelly look after new trees in order not to make the forest slowly disappear. Only' in this way can we make the forest serve man forr. 

    树的重要性
      众所周知，树有很多的用处，人类从中得到如下很多益处：第一，树给我们提供了木材和其他一些产品。第二，它们的根能让雨水渗进并保持乒壤以免被水冲走，所以树木可以预防旱灾和水灾。同时树木还帮我们净化空气，美化生活。
    不幸的是，今天世界上很多地方人们没有意识到树木的重要性。他们无计划的大量砍伐树木，这样使得土壤被，他们不知道那没有树的地方，一下雨就把土壤的表层冲走了，导致洪灾。
    我们应该多植树，同时好好照顾小树，不要让森林一点点消失，只有这样才能让森林永远为人类服务。