2. 外语
  3. The concept of personal choice in relation to health behaviors is an important one. An estimated 90 percent of all illness may b

The concept of personal choice in relation to health behaviors is an important one. An estimated 90 percent of all illness may b

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问题     The concept of personal choice in relation to health behaviors is an important one. An estimated 90 percent of all illness may be【C1】______ if individuals would want to make【C2】______ personal health choices, which should be based 【C3】______ current medical knowledge. We all enjoy our freedom of choice and do not like to see it restricted when it is within the legal and moral 【C4】______of society. The structure of American society allows us to make almost all our own personal decisions that may【C5】______our health. If we so desire, we can smoke, drink【C6】______, refuse to wear seat belts, eat whatever food we want, and live a completely sedentary lifestyle without any exercise. The freedom of making such personal decisions is a fundamental aspect of our society,【C7】______the wisdom of these personal decisions can be【C8】______. Personal choices relative to health often cause a difficulty. 【C9】______one example, a teenager may know the facts relative to smoking cigarettes and health but may be【C10】______by friends into believing it is the socially accepted thing to do.
    A【C11】______of factors, both inherited and environmental, influence the development of health-related behaviors, and it is【C12】______ the scope of this text to discuss all these factors as they may affect any【C13】______ individual. However, the decision to【C14】______ a particular health-related behavior is usually one of personal choice. There are healthy choices and there are unhealthy choices. In discussing the 【C15】______of personal choice, Fries and Crapo drew a comparison. They suggest that to give oneself【C16】______to a behavior with a statistical probability of shortening life【C17】______is similar to attempting suicide.【C18】______, for those individuals who are interested in preserving both the quality and quantity of life, personal health choices should reflect those behaviors that are associated【C19】______a statistical probability of increased vitality and【C20】______.
【C9】
选项 A、By
B、As
C、For
D、On
答案B
解析 介词辨析题。这句话的作用是举例说明上一句话谈到的内容。一般在举例说明时会使用短语for example，但这句话的不同之处在于example之前有一个不定冠词a，因此应该选择[B]As，意思是“作为一个例子来进行说明”。
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