【文章內(nèi)容簡(jiǎn)介】
re plants, animals and many other things. We live in nature, so to keep the balance of nature is very important for us. But today, too many trees are still being cut down in many countries and flood all over the world are getting more and more serious, A lot of land has gone with them. This is a lesson from nature. When people move into a new place, they often cut down trees or pull out many wild plants to make farmland. They donamp。rsquo。t know that trees can stop flood and wind from washing or blowing the earth away, and that many of these wild plants are food for some wild animals. If the animals canamp。rsquo。t 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 flowers. The mountain tigers th