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发表于 2005-8-23 17:21:49
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issue121
提纲:
1.表明观点,不同意此说法
2.承认物种的消失在以前的确是进化的作用
3.现在物种消失绝大部分原因是因为人类对环境的改变远远超过了物种可进化的速度,人们应对物种的消失负责
4.科研需要也应该尽全力保护保护物种
5.总结,重复我的观点
-----题目------
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.
------正文------
Various species, developed from the very begining of the earth's originality, are playing important roles in balancing the relationshipsof the natrue that many of them are being threatened to distinct toady. Is it only the result of naturue? Does this due to any other but more serious factors? Should people make extrordinary effors to protect the spicies in great danger? Answers vary considerablely amongst different people. As for me, there is much to be done to save the endanger animals however hard may be.
I do not deny that some nature catasophy happended thoughout history accounts for the distinction."Nature selects the strong and discards the weak." THis is the main opionion according to Darlwin's Revolution Theoery. Many spicies disappeared because of their own disability to adopt the naturue ( such as climate and enimies ).The distinction of earth largest species which is ever known as disonaur is also the result of nature rather than huan's processes. However, with a further inspaction to the cliam that no need for human to protect the animals which are in danger ,we will find how fallicious it is. In terms of substantive level, the reasons mentioned below semm to be advisable and deserve more consideration.
The essential point for my propensity is that the rate of environmental changes has reached a more fast speed than ever before, and much of it based on human's progresses. The deforestation for farming, unrecycle waste dropped into the sea, buring more fossils than the earth could bear all have made the changing velosity too fast for species to follow or adopt. A survey , recently, issued by environmental department in the University of Pennsylvennia suggests until today, 90.4% of distinct spicies on the earth were disappeared in the last two decays whilst 87.9% of them suffer from the changing environment. They also pointed out acoording to their 7 years continuos researching program, the real killer of the species is the high speed in changing which is 10 times more than 7 years before. Today 3.7 kinds of animals and plants could never be found every minutes. For instance, swimming bees, a special spicies of bees living beside the lakes in China died out in the year 1996 because people fill all the lakes in the West in order to develop ecnomics, which iwas the last land for the tiny animals to survive. Losing the lakes leaded to the defastration of their homes and food resources. No matter how well they could perform in the chain of living, those changes made by men would hardly be adopted. Therefore, human beings have the resposibility to adjust themselves in the way of processing to save the species.
What is more, scientists devote to find the laws of nature and the improvements of human's health conditions need old aged animals to do the research. In China, gigaint pandas are well protected not only because they are the symbol of the nation but also they are precious representative species in ancient times.How they survive in the long time revolutions? What did they possess after thousands of years living? Could human being progress in a more efficient way by learning from our ancesters? From them researchers may be able to answer these questions and thus they would investigate living habits or the clues of human's originality.
By presenting all the factors above, I strongly buttress the ideal that extraordinary efforts for saving species is in great need.
用了70分钟, 566words, 速度还得加油!
大家纷纷指出这篇文章的错字太多,本人已总结教训,以后的习作每次自己用word修改了再传上来,绝对再不会让大家费好大的力气读完文章以后只记得满篇的错字了:p
[ Last edited by flealda on 2005-8-23 at 23:06 ] |
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