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发表于 2012-5-22 18:38:39
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argument 5
5) The following appeared in a letter to the editor of the Balmer Island Gazette. On Balmer Island, where mopeds serve as a popular form of transportation, the population increases to 100,000 during the summer months. To reduce the number of accidents involving mopeds and pedestrians, the town council of Balmer Island should limit the number of mopeds rented by the island's moped rental companies from 50 per day to 25 per day during the summer season. By limiting the number of rentals, the town council will attain the 50 percent annual reduction in moped accidents that was achieved last year on the neighboring island of Seaville, when Seaville's town council enforced similar limits on moped rentals. Write a response in which you discuss what questions would need to be answered in order to decide whether the recommendation is likely to have the predicted result. Be sure to explain how the answers to these questions would help to evaluate the recommendation. 提纲:人口100,000能代表增长很多吗?如果不能怎么就能说明moped的量会由于人口增加而增加呢? moped租赁限制导致了SI moped事故减少吗? 租赁限制也能给BI带来同样的效果吗? In this letter the author recommends the town council of Balmer Island(BI) limiting the number of mopeds rented by the island's moped rental companies from 50 to 25 per day during the summer season. In order to support the recommendation the author cites the following facts in BI 1)the population has increases to 100,000 during the summer months;(2)the Seaville Island(SI)which has taken the same measures has attained 50% annual reduction in moped accidents .Close scrutiny the facts, however, reveals both of them would rend a credible support to the recommendation. First, did BI's population raised rapidly? In this letter the author only tells us that the population increases to 100,000,but don't tell us the new population number. So it is quite possible that the population indeed has raised a little. Since there are no significant population raising, I would think maybe the moped rent number would not increase either. If so, the fact would undermine the effectiveness of this recommendation. Second, SI's accidents reduction is owe to the moped rented limit? Perhaps it is just because that SI take gives secure education to the drivers. or they population happens to be lower in the moment due to a lot of tourist leaving SI, that result in the accident number to be low. Because there is no evidence on this, so the author couldn't make a sound recommendation on basis of this. Third, even assuming the SI's measure on moped rented limit is the major reason that caused the accident decrease, the BI take the same measure can get the same result? It is possible that BI's quantity of moped rented is too low in summer months to rent 25 mopeds off, residents own the majority of mopeds, in this case the limit is useless. And perhaps SI's render is almost tourist who don't have moped in SI, and as a result the SI's measures is effective. In sum, in order to convince me accepting the recommendation absolutely, the author, in minimum, need to answer to above question. And at the same time, to assess the recommendation, I also need to know the number of people who would rent mopeds in BI, and whether there is other measures taken in SI to reduce the accident. 感觉这一篇还不如上一篇好,还是打字问题,老是打错,后面都没有什么时间了,字数也很少…… 明天看看能不能有方法提高打字速度,减少错误率。 亲,加油哦 |
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