Moods, say the experts, are emotions that tend to become fixed, influencing one’ s outlook for hours, days or even weeks. That’

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问题    Moods, say the experts, are emotions that tend to become fixed, influencing one’ s outlook for hours, days or even weeks. That’ s great if your mood is a pleasant one, but a problem if you are sad, anxious, angry or simply lonely.
   Perhaps the best way to deal with such moods is to talk them out: sometimes, though, there is no one to listen. Modern pharmacology (药物学) offers a lot of tranquilizers (镇静剂), antidepressants and anti-anxiety drugs. What many people don’t realize, however, is that scientists have discovered the effectiveness of several non-drug approaches to make you free from an unwanted mood. These can be just as useful as drugs, and have the added benefit of being non-poisonous. So next time you feel out of sorts, don’ t head for the drug-store, try the following approach.
   Of all the mood-altering self-help techniques, aerobic exercise seems to be the most efficient cure for a bad mood. "If you could keep the exercise, you’ d be in high spirits. " Says Kathryn Lance, author of Running for Health and Beauty.
   Researchers have explained biochemical and various other changes that make exercise compared favorably to drugs as a mood-raiser. Physical exertion such as housework, however, does little. The key is aerobic exercise—running, cycling, walking, swimming or other repetitive and tamed activities that boost the heart rate, increase circulation (血液循环) and improve the body ’ s utilization of oxygen. Do them for at least 20 minutes a session, three of five times a week.
Which of the following best describes the organization of this passage?

选项 A、A procedure is explained and its significance is emphasized.
B、A problem is pointed out and solutions are given.
C、Two contrasting views of a problem are presented.
D、Recent pharmacological advancements are outlined in order of importance.

答案B

解析 本文开头提出关于不良情绪的问题。在第二段中提出避免不良情绪的最好方法是非药物方法。第三、四段重点介绍了有氧运动这一方法。由此可推知,本文是按照“提出问题——解决问题”这一框架展开的。故选B。
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