2. 外语
  3. The benefits of quitting smoking—reduced risk of cancer and many other health problems—are known. But for millions of smokers, t

The benefits of quitting smoking—reduced risk of cancer and many other health problems—are known. But for millions of smokers, t

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问题     The benefits of quitting smoking—reduced risk of cancer and many other health problems—are known. But for millions of smokers, the【S1】_____effect of a cigarette can be reason enough to start up again.
    Studies have found, however, that in reality, lighting up has the【S2】_____effect, causing long-term stress levels to rise, not fall. For those dependent on smoking, the only stress it【S3】_____is the withdrawal between cigarettes.
    In a recent study【S4】_____at the London School of Medicine and Dentistry, researchers looked at 469 people who tried to quit after being【S5】_____for heart disease. At the start, the subjects had similar levels of stress and generally believed that smoking helped them to cope. A year later, 41% had managed to stay abstinent(节制的). After controlling for many a【S6】_____, the scientists found that the abstainers had "a【S7】_____larger decrease in perceived stress," roughly a 20% drop, compared with the continuing smokers, who showed little change.
    The scientists’【S8】_____was that the continuing smokers were dealing with uncomfortable cravings(渴望)between cigarettes multiple times a day, while the abstainers, after facing some initial withdrawal, had greater freedom from nicotine cravings and thus had【S9】_____a frequent and significant source of stress. Other studies have also found that smokers experience higher levels of stress and【S10】_____between cigarettes and lower levels over all when they quit.
A)relieves F)suffered K)conducted
B)summary G)factor L)hypothesis
C)calming H)eliminated M)negative
D)tension I)opposite N)hospitalized
E)significantly J)causes O)dominantly
【S9】
选项
答案H
解析 动词辨析题。根据句子结构可知，此处应使用动词的过去分词构成过去完成时。由前半句可知，“持续吸烟的 人每天要处理那种渴望吸烟的不舒服感很多次。”while表示转折，则推测戒烟者会有相反的行为结果，也就是他们“消除了这种频繁而巨大的压力来源”，故eliminated“消除，排除”符合句意。
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大学英语四级

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