It is commonly held that drinking moderate amounts of alcohol can reduce the

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问题 It is commonly held that drinking moderate amounts of alcohol can reduce the odds of having a deadly heart attack. More【B1】______ benefits to the heart have【B2】______ when people had three to seven drinks per day. But doctors advise against that because heavy drinking is associated with a【B3】______ of problems. It can be liver damages or【B4】______ fertility. Dr. Pekka Karhunen, of the University of Tampere in Finland, said that【B5】______ reports that one or two alcoholic drinks per day could help【B6】______ off heart disease appeared to have been "【B7】______". Of his study, released at the American Heart Associations【B8】______ meeting, Karhunen said in an interview that "there is no danger in one or two drinks per day, but the benefit is quite low." 【B9】______. The drinks include beer, wine or liquor. Karhunen and his colleagues chose 700 Finnish men who had died between the ages of 33 and 70. The researchers【B10】______. The scientists found that having fewer than three drinks per day did not reduce the progress of any heart disease and only "slightly" minimized the chance of having a fatal heart attack.【B11】______ [br] 【B4】

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答案 impaired

解析此处需要形容词或名词修饰fertility，与or前的liver damages构成并列结构。故若只听到impair也可知要补上-ed，表示“受损的，(能力)减弱的”。注意air不要误写成are。

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