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92. The following is taken from an editorial in a local newspaper.
“Over the past decade, the price per pound of citrus fruit has increased substantially. Eleven years ago, Megamart charged 5 cents apiece for lemons, but today it commonly charges over 30 cents apiece. In only one of these last eleven years was the weather unfavorable for growing citrus crops. Evidently, then, citrus growers have been responsible for the excessive increase in the price of citrus fruit, and strict pricing regulations are needed to prevent them from continuing to inflate prices.”
当地报纸的社论:
过去的10年里,桔类水果的价格实际上上升了。11年前,Megamart每个柠檬要价5分,现在一般要价为30分一个。过去11年只有一年不适合桔类水果生长。显然,柑桔种植者应该对桔类水果价格过度上涨负责。为防止他们继续哄抬价格规范价格规定很有必要。
1,        小范围推大范围。
2,        忽略他因,是否只有一种因素导致价格上升——不适合生长。。。还有,比如环境保护,加工价格上升,人力成本上升,或者单纯的物价上涨。。。monetary inflation, increased distribution and labor costs, or alterations in supply and demand conditions

1,        柠檬缺乏代表性,或者说,柠檬有其特殊性,譬如柠檬都是进口的,比较贵;
2,        天气好不一定代表物价要低,因为种植柑橘的农民已经动用了可用的资源了,产量无法再多了;
3,        是否物价高就是农民肆意抬高的缘故,可能是dealers在其中的作用;
4,        政府是否要介入,虽然价格变贵了,但是targeted customers没有变化,对整个国民经济影响不大
In this editorial the author argues for the imposition of strict pricing regulations in order to prevent citrus growers from continued inflation of prices of citrus fruit. The need for such regulation is supported by the author’s contention that citrus growers have been unnecessarily raising prices of citrus fruit in the past. The evidence for this allegation is the fact that the price of lemons at Megamart has increased from 15 cents per pound to over a dollar a pound during the preceding 11-year period. The author maintains that this increase is unjustifiable because weather conditions have been favorable to citrus production in all but one of those years. This argument is flawed for several reasons.
First and foremost, the author assumes that the only factor that influences the price of citrus fruit is the weather. Other factors such as monetary inflation, increased distribution and labor costs, or alterations in supply and demand conditions are completely ignored as possible sources for the increase. The charge that citrus growers have unnecessarily raised prices can be sustained only if these and other possible factors can be completely ruled out as contributing to the price increases. Since the author fails to address these factors, the recommendation calling for strict pricing regulations can be dismissed out of hand as frivolous.
Second, the author assumes that the only way to combat increased prices is through government intervention. In a free enterprise system many other means of affecting the pricing of goods are available. For example, boycotting a product and thereby influencing supply and demand conditions of the commodity is an effective means of influencing the price of the product. In a free market economy the call for price regulation by the government should occur only when all other means to rectify the problem have been exhausted.
In conclusion, the author’s argument is unconvincing. To strengthen the argument it would be necessary to show that the only factor influencing the price increases is the growers’ desire for increased profits.
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95. The following appeared as part of an article in the business section of a local newspaper.
“Hippocrene Plumbing Supply recently opened a wholesale outlet in the location once occupied by the Cumquat Cafe. Hippocrene has apparently been quite successful there because it is planning to open a large outlet in a nearby city. But the Cumquat Cafe, one year after moving to its new location, has seen its volume of business drop somewhat from the previous year’s. Clearly, the former site is a better business location, and the Cumquat Cafe has made a mistake in moving to its new address.”
Discuss how well reasoned . . . etc.
Hippocrene铅管供应商在一度为Cumquat咖啡店的地方开了一家直销店。Hippocrene现在相当的成功,因为他们正计划在临近城市开一家大的直销店。但是Cumquat咖啡店在搬到新地址一年后发现它的业务量比前一年有所下降。很明显,它的前一个地址是一个更好的商务地址,Cumquat咖啡店作出搬迁决定是错误的。
1,        gratuitous assumption: It is absurd to say the Hippocrene has been quite successful in the original location of Cumquat Café Restaurant only because the former is planning to open a large outlet in a nearby city.
2,        false analogy
3,        causal oversimplification: Other factors other than the location that may contribute to the success of the H and the failure of the C should be considered and ruled out.

(原稿空缺)Business is obviously unsuitable to the location. On the other hand, a bank in the same location might be extremely successful simply because of its suitability to the location.
In the third place, the author’s claim that Hippocrene has been successful at Cumquat’s previous location is unwarranted. The fact that Hippocrene intends to open a new outlet is insufficient to establish this claim. It is possible that the plan to open a new outlet was prompted by a lack of business at the Cumquat location.
Finally, the author unfairly assumes that one year’s time at the new location is adequate to conclude whether Cumquat made a mistake in moving to that location. Its is entirely possible that given more time, perhaps another year or so, Cumquat will become profitable at the location. Common sense informs me that this is a distinct possibility, since it often takes more than one year for a restaurant to establish a customer base at a given location.
In conclusion, the author’s argument is unconvincing. To strengthen the conclusion the author would have to evaluate other possible causes of the performance of the businesses and eliminate all except location as the cause in each case. Additionally, it would be necessary to show that location rather than suitability to a location was the cause of the success of Hippocrene and the failure of Cumquat.
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97.  The following appeared as part of an article in a computer magazine.
“A year ago Apex Manufacturing bought its managers computers for their homes and paid for telephone connections so that the managers could access Apex computers and data files from home after normal business hours. Since last year, productivity at Apex has increased by 15 percent. Other companies can learn from the success at Apex: given home computers and access to company resources, employees will work additional hours at home and thereby increase company profits.”
电脑杂志的文章:
一年前Apex制造公司给它的经理们在家买了电脑,并支付电话费,这样他们就可以在工作时间以外从家里连接到Apex的电脑和数据文件。从去年开始,Apex的生产能力增长了15%。其他公司可以借鉴Apex的成功,提供家用电脑和到公司资源的链接,雇员会在家里加班并提高公司利润。

In this article the author attributes Apex Manufacturing’s 15 percent increase in productivity over the past year to its decision to equip its manager with computers and paid telephone connections for their homes so that they would access company computers and files from home after normal business hours. On the basis of Apex’s experience the author recommends that other companies follow Apex’s example and provide computers and access to company resources to their employees. The author believes that such a policy would increase productivity and profits for other companies, just as it did for Apex. The author’s line of reasoning is questionable for several reasons.
First, the author assumes that Apex’s increase in productivity is due to its equipping its managers with home computers and access to company resources. However, the only evidence offered in support of this claim is the fact that Apex’s increase in productivity occurred after the home computers and after-hours access was provided. Unfortunately, this evidence is insufficient to establish the causal claim in question. While temporal precedence is one of the conditions required to establish a causal relationship between two events, by itself it is not a sufficient condition. Consequently, it is possible that Apex’s increase in productivity is not related to its decision to equip its managers with computers and after-hours access in the fashion required by the author’s argument.
Second, the author assumes that Apex and other companies are sufficiently similar to warrant a conclusion based on an analogy between them. Even if we accept the view that Apex’s increase in productivity was brought about by its policy of enabling its managers to work from home, differences between Apex and other companies could nullify this result. Lacking detailed information about Apex and the other companies in question it is difficult to assess the author’s conclusion.
In conclusion, the author’s argument is unconvincing. To strengthen the argument the author would have to provide additional evidence for the claim that Apex’s decision to provide its managers with home computers and access to company resources was responsible for its increase in productivity. Furthermore, it would be necessary to show that Apex and other companies are sufficiently similar to justify t
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102. The following appeared in a memorandum sent by a vice-president of the Nadir Company to the company’s human resources department.
“Nadir does not need to adopt the costly ‘family-friendly’ programs that have been proposed, such as part-time work, work at home, and job-sharing. When these programs were made available at the Summit Company, the leader in its industry, only a small percentage of employees participated in them. Rather than adversely affecting our profitability by offering these programs, we should concentrate on offering extensive training that will enable employees to increase their productivity.”
Discuss how well reasoned . . . etc.
Nadir公司的副总给公司人力资源部的备忘录:
Nadir不需要采用推荐的昂贵的家庭友好项目,诸如半日工作,在家中工作,工作共享等等。当在其行业占据龙头位置的Summit公司采用了这些项目时,它的员工只有一小部分加入了。我们与其采用这些项目来影响我们的利润,不如集中提供一些扩展培训,来使员工提供他们的生产力。
1,        false analogy
2,        It is imprudent轻率的 to say the “family-friendly” programs are costly and not profitable.
3,        Likewise, it is also imprudent to say the “family-friendly” programs are counterproductive.
4,        either-or-choice

In this memorandum the vice president of Nadir Company recommends against the adoption of “family-friendly” program. The author’s line of reasoning is that family-friendly programs such as part-time work, work-at-home and job-sharing need not be adopted because Nadir’s employees will not widely participate in them. The vice president’s recommendation is unconvincing for several reasons.
In the first place, the fact that only a small percentage of Summit Company’s employees participated in these programs when they were offered is scant evidence that Nadir’s employees will do likewise. To warrant this inference the author must assume that Summit is representative of other companies such as Nadir. Unfortunately, the author has failed to provide evidence for this crucial assumption. For example, if Summit is an emerging high-tech company whose employees are young and unmarried whereas Nadir is an established low-tech company whose employees are middle-aged and married we can expect that the percentage of employees who desire to participate in family-friendly programs would be considerably different. Lacking specific information about the companies in question it is difficult to give much credence to the vice president’s position.
In the second place, the vice president has failed to make a case for the contention that the adoption of family-friendly programs will adversely affect Nadir’s profitability. On the face of it none of the programs mentioned require capital outlay for new equipment or additional office space. Unless the vice president assumes that employees who participate in such programs are less productive than their full-time counterparts it is difficult to comprehend the line of reasoning that leads to this view.
Finally, the vice president assumes that “family-friendly” programs will not increase Nadir’s productivity. Lacking evidence to the contrary, there is little motivation to accept this assumption as true. In fact, common sense suggests that part-time workers and job-sharers would be as productive as, or perhaps more productive than, full-time workers.
In conclusion, the vice president’s recommendation against adopting family-friendly programs is not convincing. To strengthen the conclusion it must be shown that Summit is representative of other companies such as Nadir. Additionally, evidence would have to be provided for the assumption that employees who participate in family-friendly programs are less productive than other employees.
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谢谢分享!!

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105. The following appeared in an editorial from a newspaper serving the town of Saluda.
“The Saluda Consolidated High School offers over 200 different courses from which its students can choose. A much smaller private school down the street offers a basic curriculum of only 80 different courses, but it consistently sends a higher proportion of its graduating seniors on to college than Consolidated does. By eliminating at least half of the courses offered there and focusing on a basic curriculum, we could improve student performance at Consolidated and also save many tax dollars.”
Saluda镇的报纸的编者按:
Saluda统一高中提过超过200中不同的课程供它的学生选择。路那头一所小的多的私立学校提供80种基本的课程,但是它的毕业生升入大学的比例始终比统一高中要高。去除至少一半的课程而着眼于基本课程,我们可以改善统一高中学生的表现并省下税收收入。
1.        是否上大学更多就意味着更好呢?概念不对equate——可能去的学校不好。
2.        忽略他因。
3.        错误类比。情况不同,人数多可能必须提供多种课,同时也可能兴趣多。。。

1.        causal oversimplification
2.        false analogy
3.        It is likely that the smaller private school is incapable of offering more courses, or else its students can have better performance.

In this editorial the author recommends that Saluda’s Consolidated High School eliminate half of its 200 courses and focus primarily on basic curriculum in order to improve student performance and save tax revenues. The author’s recommendation is problematic for several reasons.
To begin with, the author assumes that the only relevant difference between Consolidated and the private school is the number of courses offered by each. However, other relevant differences between the schools might account for the difference in the proportion of their graduates who go on to college. For example, the private school’s students might be selected from a pool of gifted or exceptional students, or might have to meet rigorous admission standards whereas Consolidated’s students might be drawn from the community at large with little or no qualification for admission.
Next, the author assumes that the proportion of students who go on to college is an overall measure of student performance. While this is a tempting assumption, its truth is by no means obvious. If student excellence is narrowly defined in terms of the student’s ability to gain access to college, this assumption is somewhat reasonable. However, given a broader conception of student excellence that takes into account student’s ability to learn and apply their knowledge to new situations, its is not obvious that college admission is reliable indicator of performance. For example, students in non-academic disciplines could conceivably perform at high levels within these disciplines but nevertheless be unable to meet college admission standards.
Finally, the author assumes that savings in tax revenues will result from the reduced costs of funding the paired-down curriculum. This is not necessarily true. For example, it could turn out that both programs serve the same number of students and require the same number of classrooms and teacher.
In conclusion, the author has not made a convincing case for the recommendation to eliminate courses at Consolidated and focus on a basic curriculum. To strengthen the conclusion the author would have to provide evidence that Consolidated and the private school were sufficiently similar to warrant the analogy between them. Moreover, the relationship between student performance and college admission and the mechanism whereby savings in tax revenues would be accomplished would have to be clarified.
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106. The following appeared as part of a business plan by the Capital Idea Investment firm.
“Currently more and more books are becoming available in electronic form — either free of charge on the Internet or for a very low price per book on CD-ROM.* People who would not pay bookstore prices will now have access to whatever book they want from their home or work computers. Consequently, literary classics are likely to be read more widely than ever before: 72 percent of those responding to a recent online survey said they would read books in electronic form, and 81 percent said they believed that reading classic works was important. Given this newly developing market, we should invest in E-Classics, a new company that sells electronic versions of literary classics.”
*A CD-ROM is a small portable disc capable of storing relatively large amounts of data that can be read by a computer.
报纸的图书版的文章:
现在越来越多的书有了电子版,或者放在网上免费获得,或者在光盘上以很低的价格出售。因此文学经典可以得到比以前更广泛的阅读。不能以书店价格购买这些书的人现在可以用很少的钱或者不花钱来阅读他们。类似的,觉得去图书馆或者等待其他人还书不方便的人现在可以通过家里或者工作用的电脑得到他想要的任何名著。这和文学名著接触的增长将从根本上影响公众的阅读品味,塑造比以前更成熟更博学的读者。
1.        More accesses to cheaper books do not necessarily guarantee the desire to read classics.
2.        the survey is doubtful
3.        It is hard to make profit when there are so many E-books available on the net.

In this article the author concludes that literary classics are likely to be read more widely than ever before. The author’s line of reasoning is that the availability of books in electronic form and access of books via the Internet has removed the two major impediments that prevented people from reading literary classics, namely price and convenient access. Since books can be accessed from home or work via computers at little or no cost, the author believes that significant changes in the society will occur. Specifically, the author maintains that access to literary classics will affect the public’s taste in reading and will result in a more learned and cultured reading audience. The author’s argument is unconvincing for several reasons.
First, the author assumes that price and convenient access are the primary reasons people fail to read literary classics. While this is a tempting assumption, it is not obviously true. For example, other reasons, such as lack of interest in these books or awareness of them on the part of the reading public could equally account for the failure to read them. Consequently, it may turn out that, contrary to the author’s expectation, the number of people who read literary classics is unaffected by their increased availability and lower cost.
Second, while it may be the case that access to books at affordable prices has increased as a result of new technology, the author provides no evidence for the assumption that access to literary classics at affordable prices has increased as well. On the face of it, this assumption seems innocuous; however there may be reasons that prevent literary classics from being marketed in the fashion described by the author. For example, the inability to secure the requisite permissions to reproduce these books in electronic form, or the lack of commercial interest in marketing them via the Internet could undermine the author’s assumption.
In conclusion, this argument is not convincing. To strengthen the argument the author would have to provide evidence for the assumption that price and accessibility are the main reasons people fail to read literary classics. Additionally, evidence would be required for the assumption that access to literary classics will be increased.
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many  thanks !

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108. The following appeared as part of a business plan created by the management of the Take Heart Fitness Center.
“After opening the new swimming pool early last summer, Take Heart saw a 12 percent increase in the use of the center by members. Therefore, in order to increase the number of our members and thus our revenues, which depend on membership fees, we should continue to add new recreational facilities in subsequent years: for example, a multipurpose game room, a tennis court, and a miniature golf course. Being the only center in the area offering this range of activities would give us a competitive advantage in the health and recreation market.”
Take Heart健身中心的管理者起草的商业计划:
去年夏天开了新的游泳池以后,TH发现会员对中心的使用率增加了12%。因此,为了增加我们的会员数量和决定于会员费的收入,我们应该在以后几年中继续增加新的娱乐设施:比如,一个多功能游戏室,一个网球场,一个迷你高尔夫球场。作为本地唯一一家提供各种活动的健身中心,我们将在健身和娱乐市场建立竞争优势。
1.        忽略他因。
2.        错误类比。
3.        收入和支出

1.        causal oversimplification
2.        a benefit-cost analysis should be given
3.        Whether the proposed recreational facilities are popular among the people of this area is unknown.

Because Take Heart Fitness Center experienced a 12 percent increase in member usage as a result of opening a new swimming pool last summer, the author recommends the addition of new recreational facilities in subsequent years as a means of increasing membership in Take Heart. The author’s recommendation is problematic for several reasons.
First, and foremost, the author assumes that an increase in member usage portends an increase in membership. This assumption may hold true in some cases. However, it is unlikely to hold true in the case at hand, because it is reasonable to expect that members would visit the fitness center to inspect and try out the new swimming pool. This would account for the increase in usage. However, since the author provides no evidence that this new rate of usage was sustained, the abrupt increase in usage provides little evidence that the addition of facilities such as the pool will attract new members.
Second, the author assumes that the addition of the swimming pool was responsible for the increase in member usage. However, the only evidence for this claim is insufficient to establish the causal claim in question. While temporal precedence is one of the conditions required to establish a causal relationship between two events, by itself it is not a sufficient condition. Consequently, it is possible that the addition of the pool was unrelated to the increase in usage in the manner required by the author’s argument.
Finally, the author has provided no evidence to support the contention that Take Heart will be the only center in the area to offer a wide range of activities to its members and thus have a competitive advantage in the fitness market.
In conclusion, the author’s belief that adding additional recreational facilities will increase Take Heart’s membership is ill-founded. To strengthen the argument the author would have to provide evidence that member usage is reliable indicator of new membership. Additionally, it would be necessary to show that the cause of the increase in usage was the opening of the new pool.
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110. The following appeared as part of a memorandum from the loan department of the Frostbite National Bank.
“We should not approve the business loan application of the local group that wants to open a franchise outlet for the Kool Kone chain of ice cream parlors. Frostbite is known for its cold winters, and cold weather can mean slow ice cream sales. For example, even though Frostbite is a town of 10,000 people, it has only one ice cream spot — the Frigid Cow. Despite the lack of competition, the Frigid Cow’s net revenues fell by 10 percent last winter.”
Frostbite国家银行的借贷部门的备忘录:
我们不应该批准那个希望开一家KK冰激凌连锁店的特许店的本地团体的借贷请求。Frostbite以其寒冷的冬天而闻名,而冷天气意味着冰激凌的销售不利。比如,虽然Frostbite是个有10000人的镇子,它却只有一家冰激凌店Frigid Cow。尽管缺乏竞争,Frigid Cow的净收入去年冬天下降了10%。
1.        Other factors in deciding whether to give loan to a company such as the credit of the company should be considered.
2.        Admittedly, the former and prospective performance of the company is also important when the bank have to make decision of whether or not should it give loan to a company. However, the author of the memorandum show no sufficient evidence to support his or her proposal that the bank should not give loan to Kool Kone chain of ice cream parlors.
3.        The statistics last year does not necessarily denote the future trend.

1,        排除他因,净收入下降的原因是什么?可能是经营不好,草率定价,甚至正因为缺乏竞争导致了这些。
2,        寒冷冬天不等于没有夏天,也不等于夏天短暂。不能说明原因。

In this memorandum the loan department of Frostbite National Bank recommends against approval of a business loan to a local group that wants to open an ice cream parlor. In support of this decision the loan department points out that Frostbite has a reputation for cold winters and sales of ice cream decrease in cold weather. This latter point is buttressed by the fact that Frostbite’s only ice cream parlor suffered a 10 percent decline in net revenues the previous winter. The loan department’s decision is questionable for the following reasons.
To begin with, since it is reasonable to expect a decline in ice cream sales during winter months, it is difficult to assess the relevance of the fact that Frostbite has cold winters to the potential success of the Kool Kone franchise. Common sense suggests that this fact would be significant only if it turned out that Frostbite’s winter season lasted 9 or 10 months as it does in arctic regions. In that case slow sales could be expected for most of the year and the loan department’s opposition to the loan would be readily understandable. If, on the other hand, Frostbite’s winter season lasts only a few months and the remainder of the year is warm or hot, it is difficult to comprehend the loan department’s reasoning.
Next, the loan department assumes that the Frigid Cow’s decline in net revenue last winter was a result of slow sales occasioned by cold weather. While this is a possible reason for the decline, it is not the only factor that could account for it. For example, other factors such as poor business practices or lack of inventory could be responsible for the Frigid Cow’s loss of revenue. The loan department’s failure to investigate or even consider these and other possible explanations for the Frigid Cow’s decline in revenue renders their decision highly suspect.
In conclusion, the loan department’s decision is ill-founded. To better evaluate the decision, we would need to know more about the length and severity of Frostbite’s winter season. Moreover, evidence would have to be provided to support the assumption that the Frigid Cow’s loss of revenue last winter was a direct result of the cold weather.
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