- UID
- 725305
- 在线时间
- 小时
- 注册时间
- 2012-2-21
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
31. Society should make efforts to save endangered species only if the potential extinction of those species is the result of human activities.
The claimer suggests that efforts are supposed to be made to save species which are on the verge of extinction only caused by human activities. As for me, however, this statement is basically sound and it can be broadened into the protection of more endangered species even if they are not the consequence of improper movements of humans. A series of points and specific examples will be demonstrated in the article to bolster my argument.
At the very beginning, it is commonly acknowledged that the life of enormous creatures is disturbed by humans. Currently, with the sharp increase in the number of human beings, habitats of many species are gradually taken over, thus forced to somewhere less suitable for their survival. The white deer in America is a good case in this point. With the extreme expansion of humans, the trees in the forest, an ideal habitat of a large number of these deer, is supplanted by a mass of house, cutting though by artificial railways. As a result, killed by high-speeding trains are some deer accidentally rushes on the road. On the other hand, the severe aftermath from human activities is also the culprit to the extinction of these species. Specifically, with the skyrocketing development of industry, the greenhouse gases are released at a faster rate, ending up with the destruction of ozone layer in the polar regions. This casts inevitable threaten to polar creatures such as the polar bear and the penguin, which are exposed in the fierce sun rays.
What is more, the protection of animals and plants are of magnitude in the whole society, since they directly contributes to our material and spirit. The biological diversity is the great gift rendered by the nature. It is the various species that enhances better life for we humans. In particular, the horn of a antelope is an efficient and valuable medicine which can be used to cure hypertension; the corn is a major raw material for industrial production with which workers are able to brew and then produce alcohol, a basic chemical substance of multiple functions ranging from combustion to detergent. Without the imitation of birds, humans would have never realized the dream of flying in the sky, not mention conquering the outer space. Moreover, many species comes as our friend in our daily life. For example, the dog, which is viewed as the most considerate partner of humans. It not only shows loyalty to us but also teaches us how to be a good friend by accompanying us whenever we are elevated or grieved. So you see, it is those creatures that enrich our material and mental life.
Admittedly, I concede that many species which are confronted the fate of extinction need to be protected by humans, but we are not supposed to pitch efforts to some species whose fate are determined by natural choice. According to Darwin, a brilliant English biologist in seventeenth century, any species have to be faced with the fierce intra-competitions and inter-competitions for food, water and living space, and the species which fails to own the capabilities to compete with others will come to the end of its life. Thus, some extinctions of species may come from its intrinsical weakness such as poor ability to gather nutrients or to reproduce. Under these cases, it is justified that endeavors are not necessary to be poured.
Furthermore, hampered by the limitation of money, energy and time, the society cannot try its best to save the endangered species, instead a meticulous consideration should be put before any measures are taken into effect. For the aim to enhance the overall quality of people's life, the society ought to keep a good balance of the nation's economy as well as the protection of endangered species. To take the ecological experimental area as an example, the agricultural planation is friendly to the environment, for it takes good use of the waste of animals to provide nutrient to the plants. In return, a small proportion of plants is the food of these animals. Above all, it is an incessant circulation of nutrients and energy, which creates great profits while exerting little impact to the nearby surroundings. In this way, people can not only protect the habitats of creatures, but boost the acceleration of economy.
In a nutshell, we clearly become aware of the basic fact that human committed some negative influence on the survival of extinct species, and we have the obligation to protect them for we and the other creatures are the common owners of the planet and we are friends. Even if restricted by the available money and resource, we could throw effort on the economic construction which presents little harm to the environment and take efficient and applicable measures to achieve the goal, and ultimately shaper a brighter future for the overall creatures in the planet. 提纲: 人类的活动确实危害了某些种类(北极熊、企鹅) 生物对我们的物质、精神生活很有益(medicine,industrial production,friends) 有些生物灭绝是自然选择,我们难以保护 要兼顾经济发展(既保护环境也发展了经济) 结论:尽量减少活动队环境,对动物的危害(efficient and applicable measures) |
|