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题目:ARGUMENT131 - The following appeared in an environmental newsletter published in Tria Island.
"The marine sanctuary on Tria Island was established to protect certain marine mammals. Its regulations ban dumping and offshore oil drilling within 20 miles of Tria, but fishing is not banned. Currently many fish populations in Tria's waters are declining, a situation blamed on pollution. In contrast, the marine sanctuary on Omni Island has regulations that ban dumping, offshore oil drilling, and fishing within 10 miles of Omni and Omni reports no significant decline in its fish populations. Clearly, the decline in fish populations in Tria's waters is the result of over fishing, not pollution. Therefore, the best way to restore Tria's fish populations and to protect all of Tria's marine wildlife is to abandon our regulations and adopt those of Omni."
字数:420 用时:00:30:00 日期:2007-7-28下午 09:36:46
The argument is well-presented, but not thoroughly well-reasoned. By making a comparison of Tria's waters, where the fish populations is declining and regulations do not include banning fishing, with the Omni, where the regulations include banning fishing and fish population is steady, the argument for abandoning our regulations and adopt those of Omni seems logical.
However, the people of Tria Island are failing to consider other possible alternatives to the declining of fish population in Tria's waters. Perhaps it's due to the water pollution. There maybe some factories which release polluted waters in to the rivers. When these water flows into the sea, the fish is affected. Perhaps the climate is unusual in recent years, which causes the current in the sea to move in a different way from normal years. And the unusual water current makes the water too hot or too cold for the fish, or it didn't bring much food from the bottom of the sea for the fish. And there may be a hurricane which attacks and many of the fish around the island had died or gone to other safe places. If the fisherman didn't fish too excessively, it won't decrease the fish populations sharply.
Also, the author didn't provide evidence to show that the increase of fish population in Omni waters was due to it's banning of fishing. Perhaps the fisherman in Omni is raising fish for sale, and they have added large amount of fry of a certain kind of fish which will give them considerable profit. Or the natural enemy of a certain species has disappeared in the waters around Omni Island, thus that certain species has grown without constraint recently.
The argument also made a false analogy between Tria and Omni. The water condition and climate, the ecosystem, and the other conditions on the island may be completely different between these two places. Perhaps the fish population of Tria is mainly in the area between 10 miles and 20 miles around Tria Island, and within 10 miles there are very few fish. Or if there are some fish with 10 miles, they are not the kind which the fisherman pays any interest. If so, the adoption of banning of fishing within 10 miles is useless. Blindly copying the regulations in one place to another will not solve the problem.
In sum, the author must make a careful survey about the environmental problems in and around Tria Island, and then accordingly make up for the deficiency of the current regulation in Tria. |
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