7、逻辑问题例文剖析 Case Study 4: The following appeared in the editorial section of a corporate1 newsletter: The common notion that workers are generally apathetic2 about management issues is false, or at least outdated3: a recently published survey indicates that 79 percent of the nearly 1,200 workers who responded to survey questionnaires expressed a high level of interest in the TOPics of corporate restructuring and redesign of benefits programs. Student Essay First, the argument does not address how the nearly 1200 workers were selected, so the representativeness of the sample is doubtful. If the workers were selected by voluntary participation4, then there is possibility that these voluntary workers tended to care more about management issues. Second, the argument does not prove the credibility of the answers of the workers. It leaves open the possibility that workers who actually did not care about management issues may in a survey gave positive answers for various reasons.
Third, the argument only confines to such management issues as corporate restructuring and redesign of benefits programs, which happen to have close and main influence on workers. Revised Essay based upon a survey among workers that indicates a high level of interest in the TOPics of corporate restructuring and redesigning of benefits programs, the arguer concludes that workers are not apathetic about management issues. Specifically, the arguer assumes that since 79 percent of the 1200 workers who responded to the survey expressed interest in these TOPics, the notion that workers are generally apathetic about management issues is incorrect. The reasoning in this argument is problematic inseveral respects. First, the survey itself is open to question.
The argument does not indicate how the nearly 1200 workers were selected. If the workers were selected by voluntary participation instead of random5 sampling, then there is the possibility that these voluntary workers tended to care more about management issues.
In this case, the representiveness of the sample is problematic. In addition, the statistics cited in the editorial may be misleading because the total number of workers employed by the corporation is not specified6. For example, if the corporation employs 2000 workers, the fact that 79 percent of the nearly 1200 respondents showed interest in these TOPics provides strong support for the conclusion. On the other hand, if the corporation employs 200,000 workers, the conclusion would be much weaker. Furthermore, the survey does not involve workers of other companies throughout the country. Another problem with the argument is that it makes a hasty generalization7 about the types of issues that workers are interested in. It accords with common sense that workers would be interested in corporate restructuring and redesigning of benefits programs, since these issues affect workers very directly. However, it is unfair to assume that workers would be similarly interested in other management issues, ones that do not affect them or affect them less directly. In conclusion, this argument is not convincing as it stands. To strengthen it, the arguer would have to show that the respondents account for a significant and representative portion of all workers. Additionally, the arguer must provide evidence to prove that workers do have general interest in other management TOPics--not just those that affect them directly.
8、Argument结尾段模式练习
Example 1: 上文的最后一段
Example 2: The following appeared in a letter from a staff member in the office of admissions at Argent University. The most recent nationwide surveys show that undergraduates choose their major field primarily based on their perception of job prospects8 in that field. At our university, economics is now the most popular major, so students must perceive this field as having the best job prospects. Therefore, we can increase our enrollment9 if we focus our advertising10 and recruiting on publicizing the accomplishments11 of our best-known economics professors and the success of our economics graduates in finding employment.
