Issue 121.doc
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Today the protection of environment is attracting more attention from people than ever before. Among all hot issues concerning environmental affairs, the prevention of endangered species from extinction has won great attention from the society. Some people, however, regard the costly and hard job futile and a waste of money and labors. Since there have been numerous extinguished species as a result of natural processes, they claim that we should not try to save those endangered species at such a great cost.
In my view, their view is rather egocentric than rational and I believe that our efforts on saving the endangered species is far from enough.
It is true that in the geological past, many species became extinct due to unavoidable catastrophes or observation of Darwin’s law of selection. However, with the industrialization and colonization of human society, the extinction speed of animals and plants are accelerating. People can no longer shirk their liability of becoming the biggest threat to other species.
Those who are in camp of against the preservation of endangered species hold two major points. First, since there seem to be no apparent direct or indirect profits those species will bring to human beings, especially economic profits, the great cost and jobs invested will be totally unrequited and thus stupid. This point of view reveals the selfishness and egocentricity of these people, who regard themselves to be the dominator of the world and all other species should serve human beings or they will be ruled out. Considering the benefits of preserving various species, we can actually find the money and jobs are not a waste at all. Any species contributes to the keeping of balance of environment, without which even human beings will be in danger of extinction. Numerous scientific researches prove that endangered species are of great generic and environmental values to human beings. Although they may not seem to be of medical values today, it is highly possible that the specific genes of different species will be the key to longevity and health of human beings.
For example, Yuan longping, the father of hybrid rice, developed the first hybrid rice varieties after finding an important species of wild rice for the creation.
Pessimistic view holders insist that endangered species doom to extinct some day in the future and what we can do is just postpone it. This viewpoint is somewhat shrugging off responsibility because no evidence shows any endangered species cannot be saved. It may not be easy to salvage those in danger because of their own deficiencies or incompatibility with environment. However, since a number of species are actually impacted mainly because of improper human behaviors, chances are that we can change the situation by re-providing them with a clean and sufficient habitat.
For example, oil spill puts fisheries, birds at risk, which we human beings should do our utmost to avoid such things to happen again. If each time one species endangered, we are engraved with such erroneous notion, there will be more and more species become extinct in this way. And the world then will be solely comprised of our human beings. What a world would it be? No plants to convert carbon dioxide into oxygen;
no trees to hold soil in the mountains; no animals or herbs to provide us with precious raw material for medicine; and much else.
In conclusion, the species extinction as a result of natural in the past is on a different basis with the environmental crisis we met now. We human should look more at how our behavior makes this difference happen and how can we make the negative effect to the minimum. We cannot act like a coward, prevaricate with the geological history and push all the obligations to the nature. We should hold the consciousness and takes up responsibility to salvage all those endangered species, and in turn, ourselves. 我是参考了猴哥满分作文的,确切的说是整理的,不是我的原创,不过里面的两个例子是我自己加上去的,不知道合适不?恩,感谢猴哥,谢谢大家的点评~ |