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4. (4) The following appeared in a letter from a homeowner to a friend.
"Of the two leading real estate firms in our town—Adams Realty and Fitch Realty—Adams Realty is clearly superior. Adams has 40 real estate agents; in contrast, Fitch has 25, many of whom work only part-time. Moreover, Adams' revenue last year was twice as high as that of Fitch and included home sales that averaged $168,000, compared to Fitch's $144,000. Homes listed with Adams sell faster as well: ten years ago I listed my home with Fitch, and it took more than four months to sell; last year, when I sold another home, I listed it with Adams, and it took only one month. Thus, if you want to sell your home quickly and at a good price, you should use Adams Realty."
Write a response in which you examine the stated and/or unstated assumptions of the argument. Be sure to explain how the argument depends on these assumptions and what the implications are for the argument if the assumptions prove unwarranted.
结论:卖得又快又好,应该选A
原因:1.A有40家代理商,F有25家代理商
2. A去年的收益是F的两倍
3.A去年的平均房价是168000 F是144000
4.A的房子卖得快:十年前,F花了4个多月才卖了房子.去年,A花了一个月
1.A未必比F好:
(1).代理商多不以为好,可能是管理不善,效率低
(2)收入高是否代表利润高,可能是成本高
(3)A与F的市场类型不同(房子类型)
(4)10年前的经济形势和去年可能不同,房子的类型,位置不同,十年前的AF与今天的也不同
2.是否有其他选择..公司的目标类型不同,不知名的可能也有优势
5.(20) 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.
背景:B岛的人口增多,moped是流行交通工具
目的:减少moped和行人的事故
措施:夏季限制moped的出租数量(50=>25)
原因:s岛这样做了,取得了效果(50% annual reduction)
1.这一措施是否会导致事故数量的下降?
(1)其他导致事故多发(岛上人员拥挤,路况不好,交通管理差,交通标志不足)
(2)虽然夏季的人数多,但不能断定夏季是事故的高发季节.(冬天路滑)
2.即使因moped的问题导致了事故多发,但采取这一措施不能保证取得与S相同的效果.(两个岛的环境不同,similar limits不具体)
3.若是采取了,是否会有副作用? 交通拥挤
6. (45) Arctic deer live on islands in Canada's arctic regions. They search for food by moving over ice from island to island during the course of the 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 purported decline in deer populations is the result of the deer's being unable to follow their age-old migration patterns across the frozen sea.
Write a response in which you discuss what specific evidence is needed to evaluate the argument and explain how the evidence would weaken or strengthen the argument.
结论:鹿的迁徙方式不能适应新形势导致其数目下降
原因:1.鹿需要有冰来使它们可以找食物
2.当地捕猎者说鹿的数量减少了,同时全球变暖使海冰融化
1.Reports from local hunters 是否科学可信?
2.Deer的数目下降是否因为气候变暖? 其他原因:过度打猎,外来物种入侵
3.即使是气候变暖导致deer的数目减少,是否是因为他们不能follow their age-old migration patterns? 气候变暖的其他影响: 食物减少,细菌增多爆发疾病.文章没有提到气候变暖是否影响了deer的迁徙路线 |
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