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  3. The benefits of quitting smoking—reduced risk of cancer and many other healt

The benefits of quitting smoking—reduced risk of cancer and many other healt

游客2023-07-09  20
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 [br] 【S4】
选项
答案 K
解析 动词辨析题。根据句子结构可知，此处需要填入动词的分词形式作后置定语修饰study，纵观各动词选项，conducted“进行，实施”符合句意，是动词的过去分词作定语，这里的意思是“最近，在伦敦医学与牙科学院进行的一项研究中”。
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