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

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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【S1】______one, but it might be a problem if you are sad, or lonely.
    Perhaps the best way to deal with such moods is to talk them out; sometimes, though, there is no one to listen. Modem pharmacology (药物学)【S2】______an abundance of tranquilizers (镇静剂), anti-depressants and anti-anxiety drugs. However, scientists have【S3】______the effectiveness of several non-drug approaches to make you loose from an unwanted mood. These can be just as useful as drags, and have the added benefit of being【S4】______. So next time you feel out of sorts, don’t【S5】______for the drug-store but try the following approach.
    Of all the mood-altering self-help【S6】______, aerobic (有氧健身的) exercise seems to be the most efficient cure for a bad mood. Researchers have explained biochemical and other changes that make exercise compared【S7】______to drugs as a mood raiser. However,【S8】______exertion, such as housework, does little help. The key is that aerobic exercise  running, cycling, walking, swimming or other【S9】______and sustained activities-could boot the heart rate, increase circulation and improve the body’s【S10】______of oxygen. Do them for at least 20 minutes a session, three to five times a week.

A) techniques       B) repetitive       C) concept           D) offers  
E) correspondent    F) inadequate       G) nonpoisonous      H) favourably
I) pleasant         J) ambitious        K) utilization       L) physical
M) category         N) discovered       O) head
【S4】

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答案G

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