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Should societies try to save every plant and animal species, regardless of the humans in effort, time, and financial well-being? My answer to this question is absolutely not. We should treat this problem in (a)distinguished way. Because there are fundamentally two reasons which lead to species exterminates, one is irresistible historical and natural factors, and the other is human activities.
On one hand, since life began on the earth, countless creatures have come and gone---rendered extinct(extinction) by naturally changing physical and biological conditions. In this view, we need not to save these endangered species which(定语从句指代? 应改成and) extinction is a part of natural order. Let me take the following example to illustrate the problem(感觉这句有点废话~~呵呵,就用For example显得简洁点). From(According to) a analysis of a very famous ecologist, Professor Wilson in Harvard University, there have been five to six (big scale species extinctions 改成periods of big-scale species' extinction) on the earth, which are caused by geological, topography disasters or significant astronomy phenomenon (which are the result of 前面有which,后面换个表达如何:resulting) the star hits. As well known, the dinosaur had dominated the planet(这句显得太简单了,后面加个时间: in....时期). The explanations about the extinction of dinosaur are so many, yet we still do not know the real reason. [Confirmed by scientific research, that natural exterminates, occurs and evolves are complements of one another. We do not regard all species disappear as harmful](这句与前面说的是不同内容,完全可以自成一段,可以写到你的第四段去,进行正反论证). It is a historical process of natural exterminates and natural occurrence result from the earth interacts with environment. Thereby, we should not view this type of exterminates as incorrectness, and put any effort, time, financial well-being in endeavoring save them. Moreover, it will break the laws of natural and interrupt the balance of ecology, if we take effort in saving these endangered species.
On the other hand, we can not attribute all the accelerating decline of our wild animals and plants to "natural" processes, undoubtedly, (most of) today’s dangerous to wildlife (most写在前面去) often result from inhabitant degradation, environment pollution, the introduction of exotic (non-native) organisms, and exploitation----all (of which are) generally (considered) as a direct result of human activities.(赞~~这句话写的真漂亮) Although conservation efforts have begun in recent years, mankind is still exterminating entire species(making entire species exterminate) at an ever-increasing rate. Since Industrial Revolution, because of the population inflation(inflation of population) and the fast development of economic, the type and quantity of wild animals and plants reduce sharply. According to the estimates of scientists, in(for)the reason of strong disturbance by human being, the speed of species lose is 1000 times quicker than natural, (and) is 100 ten-thousand faster than form new species. The speed of exterminates(extermination) speeds up approximately from 1 kind every day to 1 kind each hour. Nevertheless, it is obvious that the benefits of natural diversity, the contribution to medicine and agriculture(从句没谓语??). What’s more, industrial is also making use of wild plants, hence, it provides economic value to mankind too. In all above, other species are widely used in human life. Taking an assumption, if the other creatures disappearing gradually, mankind would also lose; being accustomed to diversity in nature, the quality of human life would be diminished. Thus, we should try our best to save these creatures which are endangered by human activities.
In addition, exterminates(extermination) worsen the living environment of human being, and the damage of environment rapids the speed of species disappearing. Therefore, we should pay more attention on protecting environment and keeping the balance of ecology. (一个中心句+一个结论句就是一段???)
In conclusion, we have no need to hamper the natural process in saving natural exterminates, but we should put all effort, time, money to save these innocent creatures which are harmed by human activities. Besides natural process, human activities are the main reason of accelerating decline of our wild animals and plants. Thus, we should put more effort on protecting environment to save more and more endangered species. |
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