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  3. Among the most stressful of worries are death, illness, loss of work, money problem, marital problems and retirement. Such worri

Among the most stressful of worries are death, illness, loss of work, money problem, marital problems and retirement. Such worri

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问题     Among the most stressful of worries are death, illness, loss of work, money problem, marital problems and retirement. Such worries have rational basis, but we are curiously irrational in the way we pursue them. For example, fear of death is as strong among young adults as among the elderly. It is equally surprising that we are as worried the hour before having a tooth filled as when we face major surgery.
    It is difficult to decide at what point worrying ceases to be "normal", but it is clearly reasonable to worry. People get seriously ill, planes go awry, tube trains sometimes crash. In practice, anxiety is judged to be pathological when it curtails our ability to lead a normal existence. We can manage perfectly well without travelling in planes or lifts, and an evening out isn’ t spoiled by the fact that we are unable to leave the house without triple-checking the frontdoor lock. Such worries are widespread in the general population.
    In its extreme form, anxiety may be experienced either as a generalized, "free-floating" state(the sufferer becomes tense and frightened for no apparent reason), or it may be more specifically focused - for example on open spaces, enclosed situations or certain insects or animals. Many people will have experienced the former - taut muscles, dry mouth and the feeling of agitation, dread or even panic - while mild phobias are also very common.
    But at less intense levels, anxiety and worrying have great value. They help us to avoid trouble, or to cope with it when it cannot be avoided. Worrying may be an internal impulse, allowing us to solve problems at times of crisis. By worrying, we may understand better the origins of the worry and thereby avoid a possible breakdown. It may also play a significant part in helping us to come to terms with reality. In everyday life, anxiety energizes us and improves performance of a wide variety of tasks, it also galvanizes us to achieve more. Without it, it is difficult to see how there could be either social or intellectual progress. So worrying is not after all an unproductive activity. Perhaps the time to be worried is when you’ re not worrying.
A state of anxiety that is sufficiently serious for it to require medical attention______.
选项 A、is always one that is fixed on a specific object
B、displays physical symptoms normal people never experience
C、is evident when it prevents a person from living a normal life
D、shows itself when people become tense for no apparent reason
答案C
解析 题干中的问题同原文第二段的信息吻合(In practice，anxiety is judged to be pathologicalwhen it curtails our ability to lead a normal existence．)，属于同义再现，故C为正确答案。
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