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 make sound personal health choices 【C2】______  upon current medical knowledge. We all enjoy our freedom of choice and do not like to see it 【C3】______  when it is within the legal and moral boundaries of society. The structure of American society allows us to make almost all our personal decisions that may 【C4】______  our health. If we 【C5】______  desire, we can smoke, drink excessively, refuse to wear seat belts, eat 【C6】______  foods we want, and live a 【C7】______  sedentary (久坐的) lifestyle without any exercise. The freedom to make such personal decisions is the fundamental 【C8】______  of our society, 【C9】______  the wisdom of these decisions can be questioned. Personal choices relative to 【C10】______  often cause a difficulty. As one example, a teenager may know the facts relative to smoking cigarettes and health but may be 【C11】______  by friends into believing it is a socially 【C12】______  thing to do. A 【C13】______  of factors, both inherited and environmental, influence the development of health-related behaviors, and it is 【C14】______  the scope of this text to discuss all these factors as they may affect any 【C15】______  individual. However, the decision to adopt a particular health-related behavior is 【C16】______  one of personal choices. There are healthy choices and there are unhealthy choices. Experts suggest that to knowingly give 【C17】______  over to a behavior that has a statistical probability of 【C18】______  life is similar to attempting suicide. 【C19】______  , personal health choices should 【C20】______  those behaviors that are associated with a statistical probability of increased vitality and longevity.
【C19】
选项 A、Thus
B、However
C、Unless
D、Though
答案A
解析 副词辨析题。本句与上句是因果关系，因此只有thus符合上下文逻辑关系。B)however表示转折；C)unless表示条件；D)though表示让步。
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