根据下列题示,以Tree为题,写一篇100~120词的说明文（1）树木能为人们提供建筑和制造桌椅纸张的木材（2）制造氧气,净化空气(3)盛夏时遮阴,美化环境（4）防止土壤被雨水冲走（5）我们应该多

Question

根据下列题示,以Tree为题,写一篇100~120词的说明文
（1）树木能为人们提供建筑和制造桌椅纸张的木材（2）制造氧气,净化空气(3)盛夏时遮阴,美化环境（4）防止土壤被雨水冲走（5）我们应该多栽树,保护森林,禁止乱砍滥伐

Answer 1

As we all know,trees are very useful.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 help to prevent droughts and floods.Trees can clean air and beautiful 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 surface of the soil and this causes floods.
We ought to plant trees each year and carefully look after new trees in order not to make the forest slowly disappear.Only' in this way can we make the forest serve man forever.