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好心的楼主帮我改改吧 谢啦 如果实在没有时间给个大概的分数也可以啊!!万分感谢!!
题目:ARGUMENT45 - The following appeared as an editorial in a wildlife journal.
"Arctic deer live on islands in Canada's arctic region. They search for food by moving over ice from island to island during the course of a year. Their habitat is limited to areas warm enough to sustain the plants on which they feed, and cold enough, at least some of the year, for the ice to cover the sea separating the islands, allowing the deer to travel over it. Unfortunately, according to reports from local hunters, the deer populations are declining. Since these reports coincide with recent global warming trends that have caused the sea ice to melt, we can conclude that the decline in arctic deer populations is the result of deer being unable to follow their age-old migration patterns across the frozen sea."
字数:432
According to the memorandum, the author draws the conclusion that the decline in arctic deer populations is the result of deer unable to follow their age-old migration pattern across the frozen sea and the green-house phenomenon .In order to corroborate the recommendation, the author states the habitat of the arctic deer and the information from the local hunter ,meanwhile, the author reinforces the assumption by the reports that recent global warming trends have caused the sea ice to melt .At first glimpse, the statement appears rational, however, stringent scrutiny reveals that it is unconvincing for the following fallacies.
Firstly, in the argument ,only by the reason that the global warming is a simultaneity with the decline of the arctic deer populations does the author claim that the green-house phenomenon is the exact reason for the decline. The factors, which can exert negative effects on the populations of the deer, is abundant. To illustrate, a special kind of virus can lead to a serious consequent on the number of the deer group. Apart from this probability, perhaps, the sudden change in their gene also can be the murder of the decrease in populations. Some other reasons are still not ruled out, for example, some change makes a increase on the populations of the deer's enemy, such as the arctic wolf , bear, therefore it can indirectly cause the decline in the deer's population. Based on the assumptions above, the author establishes the relationship between the global warming and the decreasing population of deer in mistake.
Even if the relation between two phenomenon is convincing, the author claims that the report concerning the decline of the arctic deer was presented by the local hunter. Apparently, the report is lack of scientific evidence. Can the local hunter do a scientific survey upon the population of the deer? Probablely not. Meanwhile, the author fails to provide us more detail information about the trends of the population, for example, the study's season. The season might be the time when the arctic deer migrate to other places, so the local hunters realize the decline on the number of the deer .If the author can offer us the exact statistics about the deer populations, the assumption can be supported entirely.
Even though the data is flawless, the author is also required to give us more present materials about their habitat. Maybe their habitat is not barely limited to such a few area, or they find another areas, to which it needn't migrating patterns across the frozen sea, to hunt food. By this assumption, we also can believe the conclusion of the argument.
To draw the conclusion, the argument is untenable as it stands. To enhance what the author suggests, he must provide clear evidence and more detail statistics. If we can be supplied the complements above, the argument can be a presuasive one. |
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