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[i习作temp] Issue121【Triple Week】第1次练习by 八零年代的蛋 [复制链接]

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发表于 2009-7-13 03:38:57 |显示全部楼层

题目：ISSUE121 - "At various times in the geological past, many species have become extinct as a result of natural, rather than human, processes. Thus, there is no justification for society to make extraordinary efforts, especially at a great cost in money and jobs, to save endangered species."
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用时：01:08:08
日期：2009-7-13 0:19:27

Should human being make extraordinary efforts, especially at a great cost in money and jobs, to save endangered species? The statement raises an issue about the relationship between human being and nature. From the personal perspective, I conceive it is necessary.

As we know, the biosphere is composed by variety living creatures. It's has a complex organized system. Each species depends on many others for its survival. When the relationship between species break, it will cause a series knockdown destroy. According to a science research, if a kind of vegetation extinguish, it will lead to 10 to 30 kinds of other vegetations, insects or animals which straightly or mediate depend on the vegetation die out after. It shows the close relationship between all kinds of species. Admittedly, human being is one part of the biosphere, we can say, every other creatures has an inseparable influence on human being. If the domino effect switched on, ultimately it will endanger our own survival as a species.

Another reason why I endorsement human being should make extraordinary efforts to save endangered species is human being's developing process accelerate the speed of other creatures extinction. History is replete with evidence to demonstrate this point. A notable case in point is the American buffalo. Millions of his kind of species once lived on the prairie of American. But because of over killing by human being, the numbers of the American buffalos sharp decline. Till the 18th century 90's, only 500 to 600 American buffalos survived. Then the American government decreed to prevent buffalos from killed. Today the number of buffalos resume it’s before. This evidence shows clear what human being can do. Human being has responsibility for the creatures’ extinction.

On the other hand are two compelling arguments against placing a duty on humans to protect endangered species. First, some people insist that endangered species doom to extinguish some day in the future and what we can do is just postpone it. Because of Darwin's natural selection, only stronger species will survive while weaker ones do not. We human being belong to natural creatures, we just do what we should do, as animals must.

From the analysis made above, I commit to the notion that we need to make some efforts to save endangered species. But extraordinary efforts is unnecessary. In the final analysis, at a point when it becomes critical for own survival as a species to save certain others, then we humans will do so.

121, GRE, IUSSE