Lesson from the nature大自然的课堂作文

　　在日常学习、工作或生活中，大家都不可避免地要接触到作文吧，作文是从内部言语向外部言语的过渡，即从经过压缩的简要的、自己能明白的`语言，向开展的、具有规范语法结构的、能为他人所理解的外部语言形式的转化。那么，怎么去写作文呢？下面是小编帮大家整理的Lesson from the nature（大自然的课堂）作文，仅供参考，希望能够帮助到大家。

　　Lesson from the natureToday too many trees are still being cut down in many countries and floods all over the world are getting more and more serious. A lot of land has gone with them. This is lesson from the nature.When people move into a new place they often cut down trees or pull out many wild plants to make farmland. Maybe they don’t think they can eat trees or grass. They don’t know very much that trees can stop floods and the wind from washing or blowing the earth away and that many of these wild plants are food for some wild animals. If the animals cannot find enough plants to eat they will die or have to leave the place.In one part of the United States for example the deer there like to eat a kind of wild flower. The mountain tigers there eat the deer. But people killed many mountain tigers to protect the deer. Soon there were so many deer that they ate up all the wild flowers. Then the deer began to eat the green leaves of the young trees. So the farmers thought of ways to protect their trees. Now the deer had nothing to eat and many of them died.The number of trees deer tigers wild flowers and plants has changed much---less and less. We need to do more to keep the balance of the nature.Now more“Great Green Walls”are needed to save a lot of land and wild animals all over the world. People try to plant many more trees and grass to protect wild plants and all kinds of wild animals even tigers. People came to understand: to protect all living things on the earth means protecting people themselves.