請教一道advanced explain題

Eres

Beets and carrots are higher in sugar than many other vegetables. They are also high on the glycemic index, a scale that measures the rate at which a food increases blood sugar levels. But while nutritionists usually advise people to avoid high-sugar and high-glycemic-index foods, despite any nutritional benefits they may confer, they are not very concerned about the consumption of beets and carrots.

Which of the following, if true, would best explain the nutritionists’ lack of concern?

A Foods with added sugar are much higher in sugar, and have a larger effect on blood sugar levels, than do beets and carrots.

B Most consumption of beets and carrots occurs in combination with higher-protein foods, which reduce blood sugar fluctuations.

C Beets and carrots contain many nutrients, such as folate, beta-carotene, and vitamin C, of which many people fail to consume optimal quantities.

D The glycemic index measures the extent to which a food increases blood sugar levels as compared to white bread, a food that is much less healthy than beets and carrots.

E Nutritionists have only recently come to understand that a food’s effect on blood sugar levels is an important determinant of that food’s impact on a person’s health.

本題我理解答案是B因為只有B相關

但是無法理解premise說Beets and carrots會升高血糖,卻可以控制血糖blood sugar fluctuations,這樣血糖就不會升高嗎? EX.升高後維持

或是我漏想了什麼請NN指點了

先謝謝回答~~~

Carol凡凡

还是会升高，但是protein会让血糖升高的幅度没有那么大~

Eres

Carol凡凡 发表于 2020-4-1 10:47
还是会升高，但是protein会让血糖升高的幅度没有那么大~

恩我理解妳的意思 是相較之下最好的答案了 謝謝妳~
檢討一下本題我誤選A:其他食物會造成更高血糖,但並沒有解釋beets and carrots本身為何不需擔心升高血糖問題

補充一下官方解釋:

Argument Construction

This question requires us to identify an explanation for nutritionists' lack of
concern regarding consumption of beets and carrots, despite the fact that they
have higher sugar levels than many other vegetables and rate high on the
glycemic index.
Normally, nutritionists would advise people against consuming foods that rate
high on the glycemic index, whatever their other nutritional benefits.
To explain why nutritionists might hold such apparently conflicting positions,
consider whether there might be something notable about the consumption of
beets and carrots that makes their consumption an exception to the rule.
A. The fact that some foods may be even more problematic than beets and
carrots does not explain nutritionists' lack of concern about beets and
carrots.
B. Correct. This provides a reason that consumption of beets and carrots
may be, at least within the suggested context, exempt from nutritionists'
concern about consumption of high-sugar, high-glycemic-index foods.
Remember, nutritionists' general concern arises from the effects such
foods have on those who consume them. If we suggest that beets and
carrots are usually consumed with high-protein foods that counteract
these unwanted effects, we have good reason not to be concerned about
their consumption, at least in regard to their sugar level and glycemic
index.
C. The nutritionists advise people to avoid foods high in sugar and high on
the glycemic index despite any nutritional benefits they may confer.
Therefore, the fact that beets and carrots have such nutritional benefits
does not explain why nutritionists would not be concerned about
consuming beets and carrots, given that they both high in sugar and rate
high on the glycemic index.
D. Whatever measure the glycemic index is based on, we know that beets and
carrots are high on that index. Furthermore, we know that nutritionists
usually advise people to avoid high-sugar and high-glycemic-index foods,
despite any nutritional benefits they may confer. Therefore, the fact that
beets and carrots are more nutritious than white bread does not in any
way explain the nutritionists' lack of concern.
E. The fact that nutritionists have only recently become concerned about
high-sugar and high-glycemic-level foods does not explain their particular
lack of concern regarding beets and carrots.
The correct answer is B.

一粒黄豆。

可能是fluctuation和increases blood sugar levels这两个概念让你觉得这不是一回事？ 我的解题思路是：high sugar和high GI foods--->increase blood sugar level--->nutritionists advise avoiding these foods; however, nutritionists aren't concerned about beets and carrots. 在看选项前，我就预想了答案应该是破坏了第一个逻辑链：high sugar&GI foods--->increase blood sugar level. 选项B解释说beets/carrots一般跟其他东西一起吃，导致对血糖影响不大（这里不用太纠结这个影响到底是不是increase），破坏了第一个逻辑链，解释了为什么nutritionists aren't concerned about beets and carrots.

希望有帮助。