题目题目:
5 The following appeared in a letter to the editor of the Balmer IslandGazette. "On Balmer Island, where mopeds serve as a popular form oftransportation, the population increases to 100,000 during the summer months.To reduce the number of accidents involving mopeds and pedestrians, the towncouncil of Balmer Island should limit the number of mopeds rented by theisland's moped rental companies from 50 per day to 25 per day during the summerseason. By limiting the number of rentals, the town council will attain the 50percent annual reduction in moped accidents that was achieved last year on theneighboring island of Seaville, when Seaville's town council enforced similarlimits on moped rentals." Write a response in which you discuss what questions would need to beanswered in order to decide whether the recommendation is likely to have thepredicted result. Be sure to explain how the answers to these questions wouldhelp to evaluate the recommendation.
正文:
Inthis argument, the author concludes that the Balmer Island should limit thenumber of mopeds rented by the island's moped rental companies in order toreduce the number of mopeds. The argument is not convincing because the authorrelies on unreliable survey and unsubstantial assumption.
Itis unreasonable to draw a conclusion based on the fact that happened 1 yearago. The author assumes without justification that the background conditionsremain the same in different years. The assumption is groundless because thingsseldom remain alike as time pass by. For example, the number of personal mopedsthis year in Seaville is greater that of last year, therefore limiting therentals cannot take the same effect like last year. Without ruling out allthese factors, the author cannot draw any conclusion based on the fact thathappened 1 year ago.
Theauthor commits the fallacy of "All things are equal". In thisargument, the author failed to consider possible differences between BalmerIsland and Seaville Island that will bring a different result to Balmer. For example,the number of mopeds rented by the Seaville island's moped rental companiestake a larger proportion than that in Balmer, so limiting the rental mopeds inSeaville Island can be more useful than in Balmer. Without ruling out otherfactor, the author cannot claim justifiably that base on the experience of Seaville,Balmer can also achieve its goal.
Finally, the author observes the correlation between the limit of thenumber of rental mopeds and the moped accidents then draw a conclusion that Bylimiting the number of the rentals, the town council will attain reduction inmoped accidents. However, the author failed to consider the possible factors ofthe moped accidents. For example, the moped accidents may be caused greatly bythe terrain in the Balmer Island, therefore limiting the number of the rentalscannot solve this problem efficiently. These scenarios, if true, would serve toimpair the claim that limiting the number of rentals can reduce the mopedaccidents.
Insummary, the argument is flawed in several respects. To bolster this argument,the author should provide clear evidence that the background conditions remainthe same in this year in Seaville. In addition, the author should considerabout the difference between Balmer Island and Seaville Island. Moreover theauthor had better proved that the possible factors between limiting the numberof the rentals and the moped accidents.
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