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  3. If you sit all day at an office and worry about its effect on your weight and health, take a few breaks. That’s the advic

If you sit all day at an office and worry about its effect on your weight and health, take a few breaks. That’s the advic

admin2021-02-02  7
问题        If you sit all day at an office and worry about its effect on your weight and health, take a few breaks.
       That’s the advice from a new study that finds that people who sit for extended periods of time without taking short breaks are at higher risk for heart disease than those who take more frequent timeouts to stand up and walk around.
       The cardiovascular （心脏血管的） risk that stems from remaining sedentary for prolonged periods of time （at the office, for example） manifests itself in the form of larger waists, higher blood pressure, increased body inflammation and lower levels of "good" cholesterol （胆固醇）, the authors noted. What’s more, the negative impact of such lengthy bouts （一阵） of inactivity seems to apply even to those who routinely go to the gym.
       "These findings are not surprising," said Dr. Murray A. Mittleman, director of the cardiovascular epidemiology research unit at Beth Israel Deaconess Medical Center and an associate professor in the department of epidemiology at the Harvard School of Public Health in Boston.
       "In fact, the Surgeon General report recommends that individuals should accumulate activity incrementally throughout the day," noted Mittleman, who was not a member of the Australian research team. "And this is really consistent with that."
       The team, led by Genevieve N. Healy, of the Cancer Prevention Research Center in the School of Population Health at the University of Queensland in Herston, Australia, reported their findings in the Jan. 12 online edition of the European Heart Journal.
       "Even if you exercise for 30 to 60 minutes a day, what you do for the rest of the day may also be important for your cardiovascular health," Healy explained. "This research suggests that even small changes to a person’s activity levels （as little as standing up regularly） might help to lower cardiovascular risk. These changes can be readily incorporated into the person’s day-to-day life （including the work environment）. Stand up, move more, more often, could be used as a slogan to help get this message across."
What is the advice from a new study according to the passage?
选项 A、Those who sit for a long time without breaks are at higher risk for heart disease.
B、Those who have frequent short breaks are at higher risk for heart disease.
C、Those who sit all day long and worry about their health should take short rests.
D、Those who sit all day long and take short breaks don’t need to worry about their health.
答案C
解析 推理判断题，要正确解答此题,需要弄清定位段中That指代的内容。That不是指代后面的成分,而是指代第一段。因此可以得知,这里的建议就是第一段的内容。由此可知C）“整天坐着而又担心健康的人应该多一些短暂的休息”为正确答案。
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