题目：请以"Why Are Trees Important"为题，写一篇不少于60单词的作文。

    Why Are Trees Important树为什么重要

    Trees are very important to us. Do you know why？ Let me tell you.树对于我们非常重要，你知道为什么吗？让我来告诉你吧。

    Trees take in carbon dioxide from the air and make oxygen. That's important. People and animals need oxygen to live. Many small animals and inserts live in the trees. Some of them also get food from trees. Trees can also stop water and soil from going away. If we have a lot of trees， we stop deserts from being large. I think this is very important. You know， trees are green. They can make our country even more beautuful.树木可以吸收二氧化碳，并释放氧气，这非常重要。人类和动物需要依靠氧气生存。很多小动物和昆虫居住在树里，有些从树里获取食物。树木还可以防止水土流失。如果我们有很多树就可以阻止沙漠扩大。我认为这非常重要。众所周知，树是绿色的，它们能使我们的国家更加美丽。

    Trees are our good friends. We should plant more trees and take good care of them.树是我们的好朋友。我们应该种更多的树，并好好照料它们。

    点评：文章先阐明观点，接着论证，最后重申自己的观点。