2. 外语
  3. Human body needs a variety of essential nutrients to function properly. Unless you are a【C1】______, you probably don’t know what

Human body needs a variety of essential nutrients to function properly. Unless you are a【C1】______, you probably don’t know what

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问题 Human body needs a variety of essential nutrients to function properly. Unless you are a【C1】______, you probably don’t know what types of nutrients your body should get on a daily basis. Every food contains at least 3 nutrients, though consuming lots of fruit and veggies each day gives you more【C2】______ nutrients. Why are these nutrients so important to our health? First of all, nutrient deficiency leads to a great number of serious diseases, including heart disease and cancer. Here are the most important types of nutrients and why you need to get them【C3】______.
Vitamins are important to our health. Any vitamin【C4】______can ruin your health in a matter of several months, which is why you should eat more fruits and vegetables at least once a day. Vitamin B12 deficiency, for example, may cause【C5】______nerve or brain damage. Vitamin A deficiency can damage your eye health, while Vitamin C deficiency can lead to weak【C6】______system and deterioration of the gums. Vitamins are also crucial for your skin, hair, nails and mucous membranes.
Avoiding fats is another mistake that many dieters【C7】______. Healthy fats, such as omega-3 fats, are essential. Your body needs healthy fats to transport, store and【C8】______Vitamins A, E, D, and K. When cooking makes sure you use unsaturated fats like olive oil, corn oil or hemp oil. When it comes to saturated fats, it’s crucial to consume them in moderation.
You should consume some essential minerals to stay healthy. Phosphorus is【C9】______for your nervous system, bones, and teeth, while potassium is essential for the proper function of all tissues, cells, and organs in your body. Iron helps to keep your brain healthy as well as keep your cells strong and healthy, improving your immune system’s ability to【C10】______diseases. Watch your mineral intake to stay healthy and productive all day long and get a better sleep at night.
A. regularly B. commit C. limited D. vital
E. immune F. frequently G. deficiency H. permanent
I. undertake J. dietitian K. crucial L. deal
M. absorb N. combat O. presence
【C9】
选项
答案D
解析 vital，词义辨析题。根据词性，此处应当填入形容词。容易混淆的词是crucial和vital，都是十分重要之意，然而两者的常用搭配不同，前者是be crucial to，后者是be vital for，故选vital。
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