CR PREP2-42

tasteofbit

Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolisms generally remain unchanged.  They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level.  Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

The conclusion of the argument above depends on which of the following assumptions?
(A) Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.
(B) The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.
(C) The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.
(D) Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.
(E) Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.

答案A。请教一下，A不是和题目说的意思相反么？

lxzmonica

这道题我选错了，但是现在觉得可能选a与题目最终的结论有关，与lz探讨一下拉~

Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

是说这些好不容易减肥成功的人最终又反弹了吧？所以a假设他们不会一直坚持吃低卡

sammin2008

这样想不知道对不对：

假设胖人F和瘦人T一开始每天都吃N卡食物，但是F新陈代谢比较慢，所以会比T积聚更多的脂肪。

现在F结食吃的比T少了许多（N-10000）卡，所以开始变瘦到一定程度。

当F在到达那个程度后又恢复到每天N卡食物（A),由于新陈代谢速度不变，所有又开始积聚脂肪，恢复到原来的体重。（The conclusion)

tasteofbit

以下是引用sammin2008在2007-5-13 17:10:00的发言：

这样想不知道对不对：

假设胖人F和瘦人T一开始每天都吃N卡食物，但是F新陈代谢比较慢，所以会比T积聚更多的脂肪。

现在F结食吃的比T少了许多（N-10000）卡，所以开始变瘦到一定程度。

当F在到达那个程度后又恢复到每天N卡食物（A),由于新陈代谢速度不变，所有又开始积聚脂肪，恢复到原来的体重。（The conclusion)

sammin，谢谢你的解答。我觉得2楼的MM解释的很有道理。

A答案是将排除另一种解释的可能性。再次谢谢两位的答复！

hsummer

consume low calories是吃低卡食物?晕,我理解为burn fewer calories的意思了.........................

qxlsh

以下是引用hsummer在2007-5-19 20:19:00的发言：
consume low calories是吃低卡食物?晕,我理解为burn fewer calories的意思了.........................

郁闷!  我也一样.

russellguo

觉得解题思路和GWD完全不同啊～我居然选了C，居然认为是排除他因了

Mars861227

42．Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolisms generally remain unchanged.  They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level.  Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.

研究者发现当肥胖的人（新陈代谢率低）通过节食来减轻体重时，新陈代谢率不变，因此，他们变瘦后燃烧的能量比正常人少（瘦人因为代谢率依然很低），所以对于这些瘦人来说，他们将一直增肥（直到他们身体的大小和他们的新陈代谢率相匹配）为止。

 

The conclusion of the argument above depends on which of the following assumptions?

Gap：瘦人（从胖人变瘦的）至少要和正常人持同样多的东西（因为这样才能增肥，否则如果瘦人吃少了，虽然消耗少，但不一定增肥）

 

A．  Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.

几乎没有人在变瘦后继续吃食物(consume)比正常体重人少（补充GAP）

追梦爱我

觉得这种题目好难

hytulip

把burn calories和 consume calories都想成burn calories。

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