10.How many hours do you spend sitting in a chair every day?Eight hours in the office plus three hours in front of the TV after work is the usual situation for many people.
You probably don't need an expert to tell you that sitting too much is not good for your health-from an increased risk of heart disease and obesity(肥胖) in the long term,to reduced cholesterol(胆固醇) maintenance in the short term,not to mention the pressure on your neck and spine(脊柱).
To make matters worse,a growing body of research suggests that the negative effects of sitting too much cannot be countered with a good diet and regular exercise,according to an article in The New York Times.The article reported that a study of nearly 9,000Australians found that for each additional hour of television a person watched per day,the risk of dying rose by 11percent.In other words,sitting is killing us.
Stand up for health.Health experts suggest we break up those many hours spent sitting with more hours spent standing.
The BBC and the University of Chester in the UK conducted a simple experiment with a small group of 10volunteers who usually spent most of the day sitting.They were asked to stand for at least three hours a day.The researchers took measurements on days when the volunteers stood,and when they sat around.When they looked at the data,there were some striking differences.Blood sugar became level after a meal much quicker on the days when the volunteers in the study stood compared with the days they spent in a chair.Standing also burned more calories(热量单位:卡路里)-about 50calories an hour.Over the course of a year that would add up to about 30,000extra calories,or around 3.63kilograms of fat.
John Buckley,a member of the research team,said that although doing exercise offers many proven benefits,our bodies also need the constant,almost imperceptible(感觉不到的) increase in muscle activity that standing provides.Simple movement helps us to keep our all-important blood sugar under control.
The researchers believe that even small adjustments,like standing while talking on the phone,going over to talk to a colleague rather than sending an e-mail,or simply taking the stairs instead of the elevator,will help.
(Note:Answer the questions or complete the statements in NO MORE THAN TEN WORDS.)
78.According to the context,the underlined expression"be countered with"in Paragraph 3can best be replaced by"be prevented/reduced by".
79.The two findings of the simple experiment conducted by the BBC and the University of Chester in the UK are that standinghelps blood sugar become level quicker and burns more calories.
80.Why is standing better than doing exercise according to John Buckley?Standing provides the constant,almost imperceptible increase in muscle activity.
81.What does the passage mainly want to tell us?People should stand for health instead of sitting too much.
分析 本文为说明文.主要描述了目标人们普遍的现象,久坐,还提出了解决的措施,即建议我们多多站立.
解答 78.be prevented/reduced by 猜测词意题.根据后面的介绍"In other words,sitting is killing us."总结出,久坐之后的副作用不能靠好的饮食和锻炼来减轻.
79.helps blood sugar become level quicker and burns more calories 概括题.第四段主旨句为"Stand up for health.Health experts suggest we break up those many hours spent sitting with more hours spent standing."告诉我们通过站可以帮助我们保持健康,紧接着列举了两个机构所做的实验.
80.Standing provides the constant,almost imperceptible increase in muscle activity./Standing provides simple movement that keeps blood sugar under control. 细节题.第六段"our bodies also need the constant,almost imperceptible(感觉不到的) increase in muscle activity that standing provides"告诉我们站立可以给我们提供让人感觉不到的肌肉运动.
81.People should stand for health instead of sitting too much./We should spend less time sitting and more time standing./Sitting too much is killing us. 主旨大意题.通过整篇文章的描述,可以得出站立可以帮助我们保持健康.
点评 阅读表达主要考察学生对文章大意的把握,并能根据要求找到信息之后,进行整合重组,把字数控制在范围内.