According to the passage which of the following factors does NOT help improve digestion？A

外语类 2017-10-16 02:27:39 专四已帮助人

According to the passage, which of the following factors does NOT help improve digestion？

A．More calories provided by meat-based diet.

B．Increased softness of food which reduces the energy needed to digest.

C．Bacteria contained in large intestine.

D．Starch and protein molecules being made easier to break down.

请帮忙给出正确答案和分析，谢谢！

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正确答案：A
推断题。第六段后半部分指出，烹饪使淀粉和蛋白质分子更易分解消化，并且使食物软化，第七段末句又指出大肠内的细菌可以帮助消化残留物，因而[B]“食物的柔软度提高，减少了消化食物所需的能量”、[C]“大肠中的细菌”和[D]“使淀粉和蛋白质分子更易于分解”都是有利于消化的因素，故均排除。肉类食物的确能提供更多热量，但并不能改善消化，因此选[A]“肉类食物提供的更多热量”。