急求英语比赛演讲稿

Harmony between man and nature is economic and social development to a certain extent, a certain stage， the only way is to sum up experiences and lessons of humanity after the inevitable choice, time goes by, the dramatic increase in population, human experience and the accumulation of knowledge and the development of science and technology , especially after the industrial revolution, human transformation of nature, affect the ability of the natural growing .more than 100 years ago, Engels pointed out that human beings can change the natural order to make the natural world for their own purposes, to dominate the natural world, but every step we take must be kept in mind that human domination of nature is not standing outside nature.

Everybody knows that our human beings belongs to the great nature.What's more,we are not living in the desert by ourselves!We have to set up a relation with the other people.Therefore,being natural,friendly,honest, frank and full of hope ca