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[Critical Reasoning]
试题详情
题目：
Certain groups of Asian snails include both “left-handed” and “right-handed” species, with shells coiling to the left and right, respectively. Some left-handed species have evolved from right-handed ones. Also, researchers found that snail-eating snakes in the same habitat have asymmetrical jaws, allowing them to grasp right-handed snail shells more easily. If these snakes ate more right-handed snails over time, this would have given left-handed snails an evolutionary advantage over right-handed snails, with the left-handed snails eventually becoming a new species. Thus, the snakes’ asymmetrical jaws probably helped drive the emergence of the left-handed snail species.
Which of the following would, if true, most strengthen the argument that asymmetrical snake jaws helped drive left-handed snail evolution?
选项:
A、In one snake species, the snakes with asymmetrical jaws eat snails, while the snakes with symmetrical jaws do not eat snails.
B、Some species of Asian snails contain either all right-handed snails, or all left-handed snails.
C、Anatomical differences prevent left-handed snails from mating easily with right-handed snails.
D、Some right-handed snails in this habitat have shells with a very narrow opening that helps prevent snakes from extracting the snails from inside their shells.
E、Experiments show that the snail-eating snakes in this habitat fail more often in trying to eat left-handed snails than in trying to eat right-handed snails.
答案:
E
提问：
想问一下英吉老师，E选项是抬杠吗？不是重述了原文的事实吗？介于原文已经说过snakes in the same habitat可以把right的蜗牛更容易抓住。然后C选项可以是一个排除他因的选项吗？如果left和right不可以mate，那就可以增强不是这个因素而是asymmetrical snakes jaws drive left-handed snails evolution的可信度？请老师解答，谢谢！
解答：
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提问：
请唐瑭老师按照您的方法把这道题的每个选项讲解一下，谢谢！（错选了A）
解答：
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提问：
老师麻烦解释下a选项，我觉得是其他蛇不吃蜗牛 所以对蜗牛进化没影响，所以其实增加了不对称蛇的导致进化的可能性。类似于“你的同桌不是美女”。所以在做题过程中 我最后留下了a和e，在当时的理解精度下我就觉得e是重复原文，所以最后选了a
解答：
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提问：
我理解题目意思是说不对称的蛇是否促使了左手蜗牛的进化。而a选项说其他的蛇不吃蜗牛，所以其他的蛇不会导致蜗牛的进化。也就是增强了不对称的蛇可能促使了进化的可能性。类比于“你的同桌不是美女”。
我也觉得e是重复原文。请老师不要不答重复原文的解释问题。我现在很多题都是分不清重复原文和支持中搞混。比如691的a选项，694的a选项。对我来说都是重复原文，但是有的就是正确选项，有的不是。如果我分不清楚重复原文和支持原文的区别，那我会每道题都选可能重复原文那个选项。因为那个是最贴近问题的。所以还请老师解释一下这两者区别。或者考场遇到这样的问题怎么解决。
解答：
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阅读5028
提问：
想问一下英吉老师，E选项是抬杠吗？不是重述了原文的事实吗？介于原文已经说过snakes in the same habitat可以把right的蜗牛更容易抓住。然后C选项可以是一个排除他因的选项吗？如果left和right不可以mate，那就可以增强不是这个因素而是asymmetrical snakes jaws drive left-handed snails evolution的可信度？请老师解答，谢谢！
解答：
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阅读5271
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