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第 2 页 共 ecialists, but also by every one of human beings.
some people may proudly say: we are the masters of nature. it is true that the idea of "man can conquer nature" has dominated people's mind for years, and it is true, man has kept acting like a master and doing whatever things he wants for thousands of years. however, as the consequence of this kind of "leadership" , now the "master" seems to be confronted with problems that are far beyond his control. facts are really very ample. the
green house effect leaves islands and cities along the coast, such as this oriental pearl-shanghai, in danger of the disaster of being drowned; the holes of the ozone layer make the earth lesuitable to live for some creatures including human beings; the phenomena of el nino and la nina leave the land with serious flood and drought, and the diseases, caused by pollution, are increasing at an incredible speed... seeing all these facts, can we still ignore the counterattack of nature? we are not the masters of nature. facing all the disasters made by ourselves, we, mankind as a whole should realize that we are just a normal member of the big