Anyonecaringabouttheirhealthwillbeabletospeakoutafewoft...

问题详情：

Anyone caring about their health will be able to speak out a few of the major vitamins,  and possibly take an educated guess at what they do. Vitamin C, found in oranges and other fruit and vegetables, is important for wound repair. And the much-talked-about “sunshine” vitamin D, produced by the skin in response to UV light, is essential for strong bones.

But what about vitamin P? It might well have you scratching your head. And that's not surprising: the term was first coined in the 1930s to describe a small group of compounds that provide pigment(天然*素) to plants, and were believed to have health benefits. A century later, these compounds are now better known as flavonoids(类黄*).

Today, scientists have identified between 4,000 and 6,000 different kinds and we now know they are responsible for many of the flavors and smells of fruit and vegetables and also that they protect them from invaders such as pests and bacteria.

They are equally important nutrients for the body, helping maintain bones and teeth, and for the production of the protein collagen(胶原), which provides structure to blood vessels, muscles and skin.

They are also said to help the body deal with some of the key drivers of illness, including oxidation(氧化), a natural process by which the body's cells age and can become damaged and defective. That means they could help to protect against chronic diseases including cancer and heart disease.

do we know about vitamin P?

would scratch our head if we took it.        refers to the compounds also called flavonoids.

was made into a coin in the 1930s.              le didn't think it beneficial in the past.

h is NOT the function of vitamin P for humans according to the passage?

ing maintain bones and teeth.

sting in producing protein collagen.

lerating the circulation of the blood.

ng the body to handle the main factors of illness.

h of the following best explains “defective” underlined in the last paragraph?

ful.                  ouraged.             e.                     cient.

does vitamin P help slow the aging process?

fighting against oxidation.                        maintaining bones.

strengthening muscles.                             protecting against chronic diseases.

【回答】

1.B; 2.C; 3.D; 4.A 解析：1.细节理解题。根据第二段中的“these compounds are now better known as flavonoids(类黄*)”可知B选项正确。“It might well have you scratching your head” 意为“它很有可能会让你挠头(冥思苦想)”,故A选项错误;“the term was first coined in the 1930s”意为“这个术语是20世纪30年代被创造的”,故C选项错误。根据“were believed to have health benefits”可知D选项错误。 2.推理判断题。根据文章后两段的介绍可知,维生素P对人体的作用有三种:(1) helping maintain bones and teeth(有助于维持骨和牙齿):(2)… important… for the production of the protein collagen(胶原)(有助于产生胶原蛋白);(3)help the body deal with some of the key drivers of illness(帮助身体应对一些导致疾病的主要驱动因素),因此A、B、D选项是对的,而C选项“Accelerating the circulation of the blood” 说法不对,原文应该是 “The protein collagen(胶原) provides structure to blood vessels, muscles and skin.” 3.词义猜测题。根据最后一段 “They are also said to help the body deal with some of the key drivers of illness, including oxidation(氧化), a natural process by which the body's cells age and can become damaged and defective.”我们知道氧化会使我们的细胞衰老,受损或变得有缺陷。 4.细节理解题。根据最后一段中的“They are also said to help the body deal with some of the key drivers of illness, including oxidation(氧化), a natural process by which the body's cells age and can become damaged and defective.”可知,维生素P可帮助抗氧化。氧化是人体细胞老化的自然过程,会导致细胞受损和有缺陷,与题干中的slow the aging process呼应。

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题型：阅读理解