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标题: [求助]OG的一道题，不理解，不明白！啊啊啊啊啊啊啊。请一定帮忙！ [打印本页]

作者: grape262001 时间: 2009-1-4 11:29
标题: [求助]OG的一道题，不理解，不明白！啊啊啊啊啊啊啊。请一定帮忙！

A physically active lifestyle has been shown to help increase longevity. In the Wistar region of Bellaria, the average age at death is considerably higher than in any other part of the country. Wistar is the only mountainous part of Bellaria. A mountainous terrain makes even such basic activities as walking relatively strenuous; it essentially imposes a physically active lifestyle on people. Clearly, this circumstance explains the long lives of people in Wistar.

which of the following , if true, most seriously weaken the argument?

C Many people who live in the Wistar region have moved there in middle age or upon retirement.

E er capita spending on recreation activities is no higher in Wistar than it is in other regions of Bellaria.

OG的解释看不太懂呢！答案给的是C。可是虽然E我觉得不太有道理，但是要我选的话，我还是会选E呢！C完全不理解为什么会是正确答案呢！

作者: grape262001 时间: 2009-1-4 16:53

没人关心俺呢

我把OG的解释也贴出来吧

作者: grape262001 时间: 2009-1-4 17:17
Consider what assumption underlies the argument that the physically active lifestyle required of living in Wistar is responsible for its residents' relative longevity . The mountainous environment necessitates lifelong levels of rigorous physical activity that build a more robust population . What if a significant portion of the population has not been conditioned since childhood to the demands of the terrain ? It is assumed here that the healthy lifestyle imposed by the terrain has shaped residents from birth and accounts for their longer life span . If many residents only moved there later in life , the argument is weakened .

作者: callyfido 时间: 2009-1-4 18:04

没看到其他答案啊，可以用排除法做做嘛

光看C，我觉得是个干扰的无关选项吧

作者: hlz8601 时间: 2009-1-5 00:24
C项是说搬到那里的人很多是中年或快退休的人。这些人年龄已经很大，所以造成了该地区的平均死亡年龄很大，而不是因为锻炼的缘故。这部分人年龄大的人很多，可直接增加平均寿命。

作者: grape262001 时间: 2009-1-5 11:07

谢谢解答。但再问！

OG的解释的意思我怎么看着觉得它好像认为LIFESTYLE是应该从小培养的意思，就是说如果你不是从小开始锻炼的话，那么即使你长寿，那么锻炼也不是你长寿的原因。

我很困惑！

而且这道题旨在问你，是不是因为山的地形提供了很多可运动的机会，以至于人们长寿吧？即使是退休之后去那里，只要锻炼能够使人长寿不就可以了吗？

请指教！

作者: winniebxf 时间: 2009-1-5 11:07
E是无关选项。无论在recreation上花费多少，这与active life无关，因而也与longevity无关哦

记住，推理建立在题目给出的信息上
不知道我理解对不？

作者: grape262001 时间: 2009-1-5 11:08
我觉得E确实比较牵强，可是C就对吗？不理解

作者: callyfido 时间: 2009-1-5 15:43

我觉得C也不见得对

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