逻辑问题求助-prep 4-Q16-Overweight

susieffy

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.

研究发现非常胖的人（一般也有很低的能量消耗）通过节食减肥，但是热量消耗不变。所以他们会消耗比一般那么重的人少很多的热量。所以他们减肥了以后最终还会变回原来那么重。

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. （正确答案）

比较来讲很少有特别胖的人减肥到新体重以后还继续消耗比一般那个体重的人少得多的热量
==特胖的人减肥以后消耗的热量并不比一般那么重的人少
如果assumption错，那么特别胖的人减到新体重以后消耗的热量就会比一般人少，conclusion holds

　　(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.

如果热量消耗和体重有关的话，那么瘦人也许就导致消耗的多了，那么conclusion就错了因为胖人减肥就不会变回去。
C看起来是个可以的选项啊，我选的C

　　(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.

求问为什么选A？

susieffy

求助！！！逻辑笔记上也没有这道题

susieffy

求助！！！!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Irene20

我这道题在A和C中犹豫，最后选了C，同样想知道为什么

susieffy

这道题我明白了，burns是指消耗卡路里，consume是指吃对少，这样楼上应该也明白了吧？