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题库 / GMATAdvanced-CR-30
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?
Foods with added sugar are much higher in sugar, and have a larger effect on blood sugar levels, than do beets and carrots.
Most consumption of beets and carrots occurs in combination with higher-protein foods, which reduce blood sugar fluctuations.
Beets and carrots contain many nutrients, such as folate, beta-carotene, and vitamin C, of which many people fail to consume optimal quantities.
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.
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.
c选项和But while nutritionists usually advise people to avoid high-sugar and high-glycemic-index foods, despite any nutritional benefits they may confer,这句话冲突了
∵甜菜根和胡萝卜含糖量和升糖指数高
∴营养学家不建议摄入高糖高升糖指数食物，但【矛盾】营养学家不介意甜菜根和胡萝卜
选项B. 大部分甜菜根和胡萝卜摄入伴随着高蛋白食物，他们降低血糖波动（他因补充了摄入这两种不会导致高糖高升糖，√）
尽管能提出与一些营养性的好处，他们也没提，直接忽略。所以c不对，除了营养还有什么原因才是重要的
因为吃高蛋白的食物就中和了了B和C的缺点，那么吃B和C就没问题了。
原文中用的usually，没说所有都是不让。
选项C. B和C有好的营养元素，其他高糖高GI的食物也有好的营养，都是一样的好，但为什么不担心B和C？还是解释不了
cr
又是没读懂c长难句而选错c
去掉无关紧要的成分提炼句子主干
Beets and carrots contain many nutrients, , of which many people fail to consume optmal quantities.-> many people fail to consume optimal 最佳的quantities of the nutrients.
题干： nutritionists usually advise people to avoid high-sugar and high-glycemic-index foods, despite any nutritional benefits they may confer重要的是让步句despite，帮助排除了选项c
尤其注意让步句，尽管despite，条件句，等等，不要只读题干主语
But while nutritionists usually advise people to avoid high-sugar and high-glycemic-index foods, despite any nutritional benefits they may confer
c选项和But while nutritionists usually advise people to avoid high-sugar and high-glycemic-index foods, despite any nutritional benefits they may confer,这句话冲突了
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.