推 lovekyoko:謝謝 我懂了 03/26 15:53
コ
: 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?
推論: (overweight) lose weight but their metabolisms remains low
-->regain weight
: (A) "Mostly" 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.
把few改成mostly:
大部分減重後的人會持續攝取較低的calories
言下之意就是 既使他們新陳代謝較低,但吃得較同體重的人少-->不會復胖
這樣就weaken了前面的結論(regain weight)
結論被推翻 推論當然也就沒辦法成立了
所以一般遇到assumption的題目
就可以找選項180度翻轉後會weaken文章推論的
此選項就是推論中不可缺少的前提假設囉
: (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.
: 請問這題 我碰到假設題目都不知道怎麼解
: 我看傷咖有人說 把Relatively few 改成mostly 就否定結論
: 但我還是看不懂a哪裡有假設
: 其他選項 我可以排除
: 但a實在看不懂
: 謝謝
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