11. It is often said that people should be rewarded for doing a given job in proportion to the effort it costs them to do it. However, a little reflection will show that this is, in fact, a very bad idea, since it would mean that those people with the least skill or natural aptitude for a particular task would be the ones given the most incentive to do it.
Which one of the following argumentative strategies is used above?
(A) stating a general principle and then presenting reasons in favor of adopting it
(B) providing evidence that where the principle under discussion has been adopted, the results usually have been undesirable
(C) demonstrating that a consequence that had been assumed to follow from the principle under consideration need not follow from it
(D) attempting to undermine a general principle by arguing that undesirable consequences would follow from it
(E) showing that, in practice, the principle under consideration could not be uniformly applied.
B和D就差个evidence嘛？这样来分辨太困难了。
还是evidence的范畴有比较确切的定义的？
20. In Brazil, side-by-side comparisons of Africanized honeybees and the native honeybees have shown that the Africanized bees are far superior honey producers. Therefore, there is no reason to fear that domestic commercial honey production will decline in the United States if local honeybees are displaced by Africanized honeybees.
Each of the following, if true, would weaken the argument EXCEPT:
(A) The honeybees native to Brazil are not of the same variety as those most frequently used in the commercial beekeeping industry in the United States.
(B) Commercial honey production is far more complicated and expensive with Africanized honeybees than it is with the more docile honeybees common in the United States.
(C) If Africanized honeybees replace local honeybees, certain types of ornamental trees will be less effectively pollinated.
(D) In the United States a significant proportion of the commercial honey supply comes from hobby beekeepers, many of whom are likely to abandon beekeeping with the influx of Africanized bees.
(E) The area of Brazil where the comparative study was done is far better suited to the foraging habits of the Africanized honeybees than are most areas of the United States.
我觉得5个选项都weaken了 
还望大家指点。
[此贴子已经被作者于2003-8-9 21:26:13编辑过] | 
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发表于 2003-8-9 18:19:00
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