Vitamins are a group of substances（物質(zhì)）found in food. The body needs them for life and health. So usually, many people care for the question: am I getting enough vitamins, and am I getting the right kind?

Even though very small amounts of each vitamin are enough for the needs of the body, the worry people have about vitamins has some reasons. And this has to do with their __1_      --- the food they take in. A person eating a good variety of food get all the vitamins now __2   ___ (know) to be needed.

The problem is that there are many people who don’t ___3_   __ foods wisely. So the answer ___4   ___ this question is: No extra ___5_  __ are needed, ___6    __ you eat proper foods. In fact, many of the vitamins cannot be ___7_  __（store） in the body, so when extra vitamins are taken in, the body simply gets rid of them. It is even ___8   ___ (harm) to put too much of certain vitamins into the body. This has been found to be ___9        (truth) of vitamin A and D, when ___10    ___ amounts are taken in.

1.diet       2 . known        3. choose        4. to         5. vitamins

6. if        7. stored         8. harmful        9. true      10. large


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2.A person is very likely to catch some type of cancer if ______.

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B．he is addicted to smoking

C．he is always feeling extremely stressed or worried

D．he likes to have meals in restaurants

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A．Having a daily supplement of selenium

B．Drinking a cup of pomegranate juice every day

C．Breathing fresh air now and then

D．Taking exercise at least once a week

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A．have a daily supplement of vitamins B and C

B．try to ignore the secondhand smoking

C．take in as many selenium-containing supplements as possible

D．having exercise as often as possible

 

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