单选题 {{B}}E{{/B}}
The concept of personal choice in relation to health behaviors is an important one. An estimated 90 percent of all illnesses may be preventable if individuals would make sound personal health choices based upon 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 boundaries of society. The structrue of American society allows us to make almost all our own personal decisions that may concern our health. If we so desire, We can smoke, drink excessively, refuse to wear seat belts, eat whatever foods we want, and live a completely sedentary life-style without any exercise. The freedom to make such personal decisions is a fundamental aspect of our society, although the wisdom of these decisions can be questioned. Personal choices relative to health often cause a difficulty. As one example, a teenager may know the facts relative to smoking cigarettes and health but may be pressured by friends into believing it is the socially accepted thing to do.
A multitude of factors, both inherited and environmental, influence the development of health-related behaviors, and it is beyond the scope of this text to discuss all these factors as they may affect any given individual. However, the decision to adopt a particular health-related behavior is usually one of personal choices. There are healthy choices and there are unhealthy choices. In discussing the morals of personal choice, Fries and Crapo drew a comparison. They suggest that to knowingly give oneself over to a behavior that has a statistical probability of shortening life is similar to attempting suicide. Thus, 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 with a statistical probability of increased vitality and longevity.
单选题 The concept of personal choice concerning health is important because ______ .
【正确答案】 D
【答案解析】根据本文第一段第二句话:An estimated 90 percent of all illnesses may be preventable if individuals would make sound personal health choices based upon current medical knowledge.可以得知,不正确的个人选择会导致疾病的发生,而A和B在文章中未提及,C与本文无关,故D是惟一正确选择。
单选题 To "live a completely sedentary life-style"(Para. 1) most probably means to ______ .
【正确答案】 A
【答案解析】从上下文便可以判断出短语的意思。文中提到的live a completely sedentary life-style without any exercise就暗示出sedentary life-style与exercise是矛盾的,由此就可以断定A最贴近原短语的意思。
单选题 Sound personal health choice is often difficult to make because ______ .
【正确答案】 B
【答案解析】根据最后一段的第一句话及第一段第二句,A与文中的内容不符;D是一个原因但不全面,只有B才是正确、全面的原因。而C中所述文中未提及。
单选题 To knowingly allow oneself to pursue unhealthy habits is compared by Fries and Crapo to ______ .
【正确答案】 C
【答案解析】在第二段中作者指出:Frees和Crapo通过比喻的方式指出:...to knowingly give oneself over to a behavior that has a statistical probability of shortening life is similar to attempting suicide,可见C为正确答案。