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发表于 2007-1-16 00:26:03
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TOPIC: ARGUMENT2 - The following appeared in a letter sent by a committee of homeowners from the Deerhaven Acres to all homeowners in Deerhaven Acres.
"Seven years ago, homeowners in nearby Brookville community adopted a set of restrictions on how the community's yards should be landscaped and what colors the exteriors of homes should be painted. Since then, average property values have tripled in Brookville. In order to raise property values in Deerhaven Acres, we should adopt our own set of restrictions on landscaping and housepainting."
WORDS: 615 TIME: 1:03:51 DATE: 2007-1-16
提纲:
① “Fails to establish the causal relationship,因果错误”。题目中的一个短语“since then”为我们揭示了这个可能的逻辑谬误。Brookville的地产均价翻了三番,并不一定就是由于采纳了一系列有关房屋的限制措施的原因。可能的原因会有国民经济势头良好,居民收入增加导致对房屋的需求上升从而引起房屋均价的上涨;有大量的外地人口持续迁入导致的对房屋需求的上升,等等。而那些限制措施倒反而有可能导致房屋均价的下降。因此,仅仅是时间上的先后,并不能在“采纳限制措施”和“房屋均价上升”之间建立因果关系。
② “all things are equal,以过去证据推断现在或将来”。即使“Brookville的地产均价翻了三番”是因为“采纳了限制措施”,但是这是七年前的事情:“seven years ago”。那么现在再来采纳这样的限制措施,能否取得效果就不得而知了。
③ “False analogy,类比错误”。“nearby Brookville community”,虽然在结论中提到的是“own set of restriction”,但是内容仍然是关于“庭院美化和外漆颜色”方面的。很有可能对于Brookville community,庭院的美化和房屋外表油漆是影响其房价的主要因素,却不是Deerhaven Acres房产价格较低的原因。如果采取针对这方面的限制措施,很可能无法得到想要的结果。
④即使关于“庭院美化和外漆颜色”方面的限制措施对于Deerhaven Acres也是很有针对性的,那么光靠这些限制措施,是不是就足够了呢?有可能要想提高该地区地产的价格,其他的一系列配套措施也是必须的。
At first glance, the arguer's reasoning seems to be quite sound. According to his conclusion, the property values will be raised if they adopt their own set of restrictions on landscaping and housepainting. But unfortunately, if we make a careful consideration of his evidence, doubt will be cast on this conclusion and apprehension will be heaped on this committee's future performance.
To begin with, the author unjustifiably assumes that the increased average property values in Brookville(B) is attributable to the implementation of these restrictions. However, the author obviously overlooks various alternative explanations for these phenomena. For instance, it is entirely possible that the government of B carried out a series of policies to attract foreign enterprises. They invested B's business and offered many new jobs living and working conditions. Under such favorable circumstance, the prosperous transportation around the houses in B could be undoubtedly responsible for the increase in B. Without considering and ruling out these and other possible scenarios, the author cannot persuade me that the increased property values in B is resulted from the implement of the restrictions in B.
Granted it is true that the increased property values in B is attributable to its implementation of restrictions, the author unfairly infers from the comparatively effective result that took place in the past that such implementation must also comparatively work well today. Nevertheless, absent evidence to support this inference, it is highly possible that the situation has changed dramatically and therefore such courses of action are no longer accepted by the potential vendee. For example, perhaps the current fashionable color style tends to be a single color rather than the mixed style advocated in the restrictions. If this is the case, the implementation of any arbitrary simulation will undoubtedly lead to be abortive.
Even assuming that such action adopted in D is really effective, the author commits a false analogy that such policy will have the same function on B. The analogy depends on the assumption that all the conditions that affect the property values and environment in both areas are similar. However, the housebuyers' taste in D might quite differ from the interest of group in B. For that matter, perhaps the housebuyers in B do not care about the exterior appearance of houses and what they are mostly interested in is the fastness of the houses or the facility of the transportation around these houses. In this case, adopting these restrictions might be useless or even counteractive to raise property values. Without accounting for these and other possible dissimilarities, the author cannot convince me that such restrictions will also be effective in D.
Even if we accept that such guideline will also exert comparative influence on D Acres, the author's claim is based on the assumption that no alternative means of raising the property values are available. However, the author fails to offer any evidence to substantiate this crucial assumption. For example, perhaps other factors such as ameliorating the condition of the investment environment, appropriate tax rate or convenient transportation will be more effective for D rather than just solely implementing the advocated restrictions. Without considering and eliminating these and other alternative means, it is difficult to assess the merit of the author's recommendation that such implementation provides the optimal selection for the homeowners in D.
In summary, the argument is not well reasoned as it stands. The evidence provided in the analysis does not lend strong support to what the author maintains. To strengthen the argument, the arguer would have to present more evidence that the housebuyers in D is also interested in the exterior appearance and other alternatives to raise the property values should be taken into account. |
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