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  3. It’s well established that smoking cigarettes, especially large quantities of them, is bad for your health. But a new study show

It’s well established that smoking cigarettes, especially large quantities of them, is bad for your health. But a new study show

admin2021-03-22  84
问题         It’s well established that smoking cigarettes, especially large quantities of them, is bad for your health. But a new study shows the risk exists even with a minimal amount of smoking. Just one cigarette a day can increase the likelihood of cardiovascular (心血管的) disease. Researchers from University College London found that having a single cigarette each day raises the risk of coronary heart disease or stroke. "No safe level of smoking exists for cardiovascular disease," the authors conclude in their paper published Wednesday in BMJ.
        The team analyzed 141 previously published studies conducted between 1946 and 2015, which included data from millions of men and women. They specifically looked at the cardiovascular effects of people who smoked one, five or twenty cigarettes per day compared to those who had never smoked. When adjusting for confounding factors, such as age and blood pressure, they found that men who smoked one cigarette per day had a 74-percent higher risk of heart disease than non-smokers and a 30-percent higher risk of stroke. Among women, the risk of heart disease among one-per-day smokers was increased by 119 percent and the risk of stroke by 46 percent compared to non-smokers.
        "There’s a misconception by many smokers that if you cut down you will reduce harm," Allan Hackshaw, a study co-author and epidemiology professor at University College London, told Newsweek. "This seems to be true for lung cancer, but people aren’t aware that only a Utile bit of tobacco smoke has a big effect on the cardiovascular system."
        Although light smoking can negatively affect your health, cutting down is still helpful. "I think a lot of people who work in the tobacco and the health industry right now forget how difficult it is to quit," Hackshaw said. "Going cold turkey is hard." Hackshaw suggests finding an appropriate cessation (中止) method to help cut back. But he also emphasizes that the end goal should be to quit.
        One in every three deaths from cardiovascular disease is caused by smoking, according to the Centers for Disease Control and Prevention. Understanding the role of minimal smoking in this risk could help reduce the incidence of cardiovascular disease.
        Hackshaw and his colleagues hope their findings will be used to "strengthen public health campaigns (including those on smoking cessation services) and to provide a strong health incentive for smokers to quit (particularly women), rather than cut down," they wrote in their paper.
What does the underlined sentence "Going cold turkey is hard" mean in the passage?
选项 A、It is far from easy to form good habits.
B、Self-discipline is extremely challenging.
C、Quitting a bad habit is not as hard as it seems.
D、It is difficult to get rid of bad habits suddenly.
答案D
解析 语义理解题。在文中找到原句后，应结合上下文语义理解句子的意思。上文表明，现在很多从事烟草行业和健康行业的人都忘记了戒烟的难度。下文则是围绕“建议先减少吸烟，最终戒烟”展开的。选项D“突然戒掉坏习惯是很困难的”符合上下文语义，故答案为D。文中并未提及选项A“养成好习惯很不容易”和选项B“自律是非常有挑战性的”，选项C的意思与上下文相反，故均排除。
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