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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 choice and do not like to see it restricted when it is within the legal and moral boundaries of society. The structure 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(多數(shù)；大批) 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 Grapo drew a comparison. They suggest that to knowingly give oneself over to a behavior that has a statistical(統(tǒng)計(jì)數(shù)字的) probability of shortening life is similar to attempting suicide(自殺). 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(活力；生命力) and longevity(長(zhǎng)壽).

51．The concept of personal choice concerning health is important because ____.

A．personal health choice help cure most illness

B．it helps raise the level of our medical knowledge

C．it is essential to personal freedom in American society

D．wrong decisions could lead to poor health

52．To “l(fā)ive a completely sedentary life style”（L7, Para.1）in the passage means____.

A．to “l(fā)ive an inactive life”                        B．to “l(fā)ive a proper life”

C．to “l(fā)ive a life with complete freedom”   D．to “l(fā)ive a life of evil”

53．Sound personal health choice is often difficult to make because ____.

A．current medical knowledge is still insufficient

B．there are many factors influencing our decisions

C．few people are willing to trade the quality of life for the quantity of life

D．people are usually influenced by the behavior of their friends

54．To knowingly allow oneself to pursue unhealthy habits is compared by Fries and Crapo to ____.

A．improving the quality of one’s life

B．limiting one’s personal health choice

C．deliberately ending one’s life

D．breaking the rules of social behavior

55．According to Fries and Crapo sound health choices should be based on ____.

A．personal decisions                               B．society’s laws

C．statistical evidence                               D．friend’s opinions

   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 structure 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 choice. 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 (統(tǒng)計(jì)的) 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 (長(zhǎng)壽).

46. The concept of personal choice concerning health is important because _______.

　　A. wrong decisions could lead to poor health

　　B. it helps raise the level of our medical knowledge

　　C. it is essential to personal freedom in American society

　　D. it helps cure most illnesses

47. To “l(fā)ive a completely sedentary life-style” (Para.1) in the passage means _________.

　　A. to “l(fā)ive a decent life”                 　B. to “l(fā)ive an inactive life”

　　C. to “l(fā)ive a life of vice”               　　D. to “l(fā)ive a life with complete freedom”

48. Sound personal health choice is often difficult to make because __________.

　　A. few people are willing to trade the quality of life for the quantity of life

　　B. people are usually influenced by the behavior of their friends

　　C. current medical knowledge is not enough yet

　　D. there are many factors influencing our decisions

49. To knowingly allow oneself to pursue unhealthy habits is compared by Fries and Crapo to _______.

　　A. deliberately ending one’s life             B. improving the quality of one’s life

　　C. limiting one’s personal health choice     　D. breaking the rules of social behavior

50. According to Fries and Crapo sound health choices should be based on ______.

　　A. personal decisions                      B. statistical evidence

C. friends’ opinions                       D. society’s laws