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Doctors already know that people who smoke can damage their hearing. The latest study in the journal Tobacco Control,【C1】_______
Doctors already know that people who smoke can damage their hearing. The latest study in the journal Tobacco Control,【C1】_______
admin
2022-01-04
94
问题
Doctors already know that people who smoke can damage their hearing. The latest study in the journal Tobacco Control,【C1】________more than 3,000 US adults, suggests the same is true of passive smoking.
Experts believe tobacco smoke may【C2】________blood flow in the small vessels of the ear. This could starve the organ of oxygen and lead to a build up of【C3】________waste, causing damage. The harm is different【C4】________that caused by noise exposure or simple ageing.
In the study, the researchers from the University of Miami and Florida International University looked at the hearing test results of 3,307 non-smoking volunteers— some who were ex-smokers and some who had never smoked in their lifetime. The tests measured【C5】________of hearing over low, mid and high noise frequencies.
To【C6】________passive smoke exposure, the volunteers had their blood checked for a byproduct of nicotine, called cotinine, which is made when the body comes into【C7】________tobacco smoke. This【C8】________that people exposed to second-hand smoke were far more likely to have poorer hearing than others, and to a degree where they might struggle to【C9】________a conversation in the【C10】________of background noise. Passive smoking increased their risk of hearing loss across all sound frequencies by about a third.
Dr David Fabry, who led the research, said: "We【C11】________do not know exactly how much smoke you need to be exposed to in order to be at increased risk.
【C12】________we do know that the【C13】________for damage is very low. Really, the safe level of exposure is no exposure."
Dr Ralph Holme, head of another research team, said: "We already knew from our own research that regular【C14】________smoking is a significant risk【C15】________leading to hearing loss and this new study is important as it【C16】________the increased risks posed by passive smoking too. Hearing loss can often be very【C17】________and lead to social isolation, if not quickly【C18】________Before you next【C19】________a cigarette, consider how it could impact not only【C20】________your own long-term hearing but your friends’ and relatives’ too."
【C8】
选项
A、revealed
B、denied
C、maintained
D、doubted
答案
A
解析
本句提到吸二手烟的人更可能听力比其他人差(far more likely to have poorer hearing than others),这是检验志愿者血液的结果。因此空格处所填单词应能表明后面所说内容是研究结果。A项revealed意为“显示,揭露”,符合此处的语境。B项denied和D项doubted分别表示“否认”和“质疑”,下文提到被动吸烟增加听力损伤的风险(increased their risk of hearing loss),可推断“吸二手烟的人更可能听力比其他人差”是存在的,不能对之进行否定或质疑。C项maintained意为“维持,断言”,指保持某种状态或形势,或某人表达某种观点,不表示结果。
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0
考研英语二
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