2. 外语
  3. A. found B. effectively C. stimulants D. medicine E. anxious F. much G. more H. sentimentally I. emotionally J. drugs K. benefic

A. found B. effectively C. stimulants D. medicine E. anxious F. much G. more H. sentimentally I. emotionally J. drugs K. benefic

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问题 A. found B. effectively C. stimulants D. medicine E. anxious
F. much G. more H. sentimentally I. emotionally J. drugs
K. beneficial L. that M. so N. profitable O. effects
    Researchers know there are many drugs that can alter our bodily processes in such a way as to affect our emotional experiences. One such set of drugs is commonly referred to as sedatives or tranquilizers. They act to "slow us down"【C1】______ and make us less responsive. A doctor may prescribe a tranquilizer for someone who is very tense or very 【C2】______ and who cannot sleep or function because of his over arousal. Emotional disorders of extreme over arousal are often【C3】______reduced by such drugs. Another set of drugs is called stimulants. They "perk us up" emotionally and make us【C4】______ responsive. A common mild stimulant is caffeine, a drug【C5】______in most coffees. It is because of its caffeine content【C6】______coffee often gives us a "lift" , wakes us up, and helps us be more responsive. Some【C7】______ are very potent and may effectively counteract extreme depression. Under a doctor’s care, the use of strong stimulants can be very 【C8】______. Other kinds of drugs can also have profound【C9】______ on our emotions. These include chemicals found in marijuana, narcotics, and hallucinogenic(引起幻觉的)【C10】______ such as LSD. These drugs may produce unpleasant as well as pleasant feelings. Also they can be very dangerous. Some are strongly addictive, and many can cause various kinds of damage.
【C5】
选项
答案A
解析 动词词义及用法题。题意：“一种温和的兴奋剂叫做咖啡因，大多数咖啡中含有这种物质。”。found(in)：(在……中)被找到，存在于……，符合题意要求。
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