1 减数人类对大自然的依赖；
2 随着 人类对大自然的发展 生态平衡遭到破坏，人类的生存环境受到严重污染，人类正在受到大自然的惩罚；
3 我们要善待自然，自然也会关照我们。
（数字一百字左右）
參考答案:您好，希望我的答复能够让你满意！
NATURE
The reliance of human being to nature is apparent. Without the fascinating nature, the world we know won't be what it is anymore. As far as concerned, human is reponsible for their own deed. It is apparently shown that the nature is destroying gradually, the environment mankind living is severely polluted. Water contaminated, species extincted, trees cut down... not knowing what they have done, mankind are still doing things that harms themselves. That is the punishment of nature.
We must bear in mind, if we take good care to the nature, it will take good care of us too...
