对这些问题有疑问的同学可以通过小编的整理仔细理解一下逻辑题的解题思路，也可以和朋友一起讨论一下GWD逻辑套题中的难题。
GWD-8-Q38:
Unless tiger hunting decreases, tigers will soon be extinct in the wild. The countries in which the tigers’ habitats are located are currently debating joint legislation that would ban tiger hunting. Thus, if these countries can successfully enforce this legislation, the survival of tigers in the wild will be ensured.
如果猎虎行为不减少，老虎很快就要在野外灭绝了。那些有考虑栖息地的国家正在考虑制定共同法令以禁止猎虎。这样，如果这些国家能够很好的执行这个禁令，那么老虎在野外生存就可以保障。
The reasoning in the argument is most vulnerable to criticism on the grounds that the argument
assumes without sufficient warrant that a ban on tiger hunting could be successfully enforced 这个本来就是结论的前提，如果可以执行，那么老虎就不至于灭绝。也就是说如果不能很好的执行，老虎就会灭绝。所以没有让这句结论不成立。
considers the effects of hunting on tigers without also considering the effects of hunting on other endangered animal species 这儿只在谈老虎，所以其它的动物虽然也应该得到保护，但明显不在此题讨论范围内。
fails to take into account how often tiger hunters are unsuccessful in their attempts to kill tigers 现在打老虎的准确率不是那么高都弄得人家快要灭绝了，那如果成功率更高不是早就灭绝了吗?明显又错误又搞笑的选项。
neglects to consider the results of governmental attempts in the past to limit tiger hunting 原文并没有说以前有没有禁令，所以无关。
takes the removal of an impediment to the tigers’ survival as a guarantee of their survival
题干只说了减少猎虎行为，而结论是禁止猎虎行为。我只看出了这个差别。另外还想出的理由是前提并没有说猎虎是造成老虎快灭绝的唯一原因，而结论把猎虎当成是唯一的原因了。以下是LAWYER的分析：
原文推理：因为NOT EXTINCT----->HUNTING DECREASE。所以HUNTING DECREAS(BAN HUNTING成功)------>NOT EXTINCT。很容易看出逻辑错误为逆命题的错误，即将必要条件(HUNTING DECREASE)当作充分条件。即E。----------这是LAWYER说的)
GWD-8-Q40:
From 1973 to 1976, total United States consumption of cigarettes increased 3.4 percent, and total sales of chewing tobacco rose 18.0 percent. During the same period, total United States population increased 5.0 percent.
从1973年到1976年，美国总的香烟消费量增加了3.4%，咀嚼用的烟草销售上升了18%。在同时期，美国的总人口上升了5%。
If the statements above are true, which of the following conclusions can be properly drawn?
United States manufacturers of tobacco products had higher profits in 1976 than in 1973.，第一，基数不知道，百分比增加的多不一定就卖得多;第二，卖得多不一定赚得多
Per capita consumption of cigarettes in the United States was lower in 1976 than in 1973. 1973年的人均香烟消费比1976年的高。正确。
The proportion of nonsmokers in the United States population dropped slightly between 1973 and 1976.不知道是以前抽烟的人抽多了还是有新的抽烟的人，所以无法推出这个结论。
United States manufacturers of tobacco products realize a lower profit on cigarettes than on chewing tobacco. 同A
A large percentage of United States smokers switched from cigarettes to chewing tobacco between 1973 and 1976. 不知道是以前嚼烟的人嚼的更多了还是有新加入的嚼烟者。所以无法推出。
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