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Air pollution triggers more heart attacks than using cocaine and poses as high a risk of sparking a heart attack as alcohol, cof
Air pollution triggers more heart attacks than using cocaine and poses as high a risk of sparking a heart attack as alcohol, cof
admin
2022-08-04
105
问题
Air pollution triggers more heart attacks than using cocaine and poses as high a risk of sparking a heart attack as alcohol, coffee and physical exertion. The findings, published in The Lancet journal, suggest population-wide【C1】________like polluted air should be【C2】________more seriously when looking at heart risks, and should be put into context beside higher but relatively【C3】________risks like drug use. Researchers combined data【C4】________36 separate studies and calculated the relative risk【C5】________by a series of heart attack triggers. They found that of the triggers for heart attack studied, cocaine is the most【C6】________to trigger an event in an individual,【C7】________traffic has the greatest population effect as more people are【C8】________to it. A report published late last year found that air pollution in many major cities in Asia【C9】________the WHO’s air quality guidelines and that toxic cocktails of pollutants【C10】________more than 530,000 premature deaths a year.
While【C11】________smoking was not included in this study, the researchers said the effects of second-hand smoke were likely to be【C12】________to that of outdoor air pollution, and noted previous research which found that bans on smoking in public places have significantly【C13】________heart attack rates. British researchers said last year that a ban on smoking in public places in England【C14】________to a swift and significant drop in the number of heart attacks,【C15】________the health service 8.4 million pounds in the first year.
【C16】________, what triggers the heart attack should be considered the "last straw." The【C17】________of heart disease that lead to a heart attack are【C18】________down over many years. If someone wants to【C19】________a heart attack they should focus on not smoking, exercising, eating a healthy diet and【C20】________their ideal weight.
【C7】
选项
A、but
B、as
C、or
D、then
答案
A
解析
上下文语义题。该空后接一个完整的句子,故可知应填连接词,连接前一句一起表示研究的发现。空格前表示 “就个体而言,吸食可卡因最 致病”,空格后则表明“交通拥堵对人群的影响力最大”,前后之间是“个体”和“群体”的对比,语义上有转折。故选A项but。as表原因或引导时间状语从句,or表选择,then表先后顺序。这三项都不能表达前后两个分句之间内在的逻辑关系,故排除。
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0
考研英语二
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