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东北师大附中2018届高三最后冲刺十套卷 英语带听力(一)

东北师大附中2018届高三最后冲刺十套卷 英语带听力(一)

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2019-05-28
870
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11.2 MB
10备课币
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(重庆市重点中学九校联盟2018届高三第一次联考)The dangers of sitting all day are obvious. Researchers have shown that remaining sitting for extended periods of time (like at your 9-to-5 desk job) can do harm to your health. While exercise is a big part of reducing the harmful effects of sitting, it was unclear how many gym periods were needed to help – until now. A new study, published in The Lancet, shows the ideal formula for reducing the negative effects of a sedentary(久坐的)job. Instead of a fixed number of hours spent exercising, the ratio(比率)depends on how much you sit: people who work a typical eight-hour day should spend at least one hour each day moving. If you sit six hours a day, you should spend half an hour exercising. The research also indicates that the exercise doesn’t have to be all once – or rigorous(严格的). It can be spread throughout the day and be as simple as walking. The team behind the study analyzed data from a pool of a million adults over the age of 45 in Western Europe, the United States, and Australia. Using previous data, the researchers examined data from 16 published studies and used it to determine how much exercise is required to compensate for sitting. Their recommended daily exercise goal is higher than previous advice but not necessarily less achievable, given it can be completed throughout the day. Fitting in an hour of exercise a day sound

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