Q11: Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover. Which of the following, if true, most seriously undermines the argument? (A)Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese. (B)It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date. (C)The number of snow geese taken by hunters each year has grown every year for several years. (D)As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons. (E)In the snow gooses winter habitats, the goose faces no significant natural predation. 答案给的是B 讲一下我自己的看法: (A)只提出设定limit的原因是啥，跟argument无关 (E)若鹅没天敌，那就没有其他天然因素控制它族群大小，更应该捕猎鹅 接下来是争议最多的(B)和(D) (B) 很多人都认为句子是在说"打猎季节已经有好几年未因限管而比预期时间提早结束" 但我个人认为刚好相反，它是在说"已经有好几年打猎季节都因限管而比预期早结束" 照我的解释的话，根据题目的条件说要捕到5%的量打猎季节才会结束， 那会提早结束就只有两个可能1.鹅的量很少，一下就捕完 (跟原叙述的shapr increases很明显违背，不可能) 2.猎人技术很好，一下子就捕到5%的量 因此若解除限制，被猎捕的鹅一定会更多，这样岂不是加强argument? (D) 尽管鹅现在连很多别的地方都开始繁殖了， 那如果解禁开放打猎，若是猎捕的量够大的话还是可以减少鹅对其他鸟类的威胁不是? (C) 这是我选的答案 因为题目是说那些鸟are threatened by recent sharp increases in the population of snow geese ^^^^^^ 而C选项是在说这些年来其实这些鹅一直都有在增加的趋势， 我是觉得这边可以对原argument一个质疑 "数量会突然大量增加一定是某个原本没有的因素出现， 所以若是没把那个因素去除，尽管开放猎捕，鹅的数量还是会突然大量增加" 因此就算是开放打猎也没有效。 以上是我对这题的看法，希望大家可以帮忙回答一下，谢谢 --

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