An overwhelming【C1】______ to drink alcohol,【C2】______ it is causing harm, is a disease called alcoholism. Alcohol is a drag. In

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问题      An overwhelming【C1】______ to drink alcohol,【C2】______  it is causing harm, is a disease called alcoholism. Alcohol is a drag. In the United States alcoholism is the most widespread form of【C3】______ abuse,【C4】______ at least 5 million persons.
     【C5】______  one third of high-school students in the United States are【C6】______  to be problem drinkers. Many already may be alcoholics. Drunk drivers【C7】______ one half of all fatal automobile【C8】______ each year in the United States. Drinking is a【C9】______ cause of loss of income and of social and personal problems.
     Alcoholism also creates many severe【C10】______ problems. More than three drinks a day over even a few weeks causes【C11】______ changes in the liver. (One ounce [30 milliliters] of hard liquor, 4 ounces [118 milliliters] of wine, or 12 ounces [355 milliliters] of beer are 【C12】______ considered one drink. ) About 15 percent of heavy drinkers【C13】______ cirrhosis, which can be 【C14】______ Changes in the brain and nervous system【C15】______ hostile behavior, loss of mental 【C16】______ , and poor judgment.
     One third of the babies born to mothers who drink 【C17】______ , especially during the first trimester, have birth【C18】______ or retardation. This condition is called fetal alcohol syndrome. Some drugs, such as tranquilizers, when【C19】______  with alcohol can result in death. Sexual potency and sperm count are greatly【C20】______  in alcoholic men, and alcoholic women often produce no fertile eggs.
【C16】

选项 A、alert
B、villain
C、sharpness
D、attention

答案C

解析 从语法判断本题应当填名词,同时表示的是大脑敏锐、灵活等方面的含义。选项A alert常做形容词表示“警惕的,机警的”,选项B villain表示“坏人,反面角色”,选项C attention不会与mental搭配,只有选项C sharpness 与 mental搭配构成mental sharpness表示“头脑的敏锐”。
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