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(膽固醇) 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(熱量單位: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(感覺不到的) 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 本文為說明文.主要描述了目標人們普遍的現(xiàn)象,久坐,還提出了解決的措施,即建議我們多多站立.
解答 78.be prevented/reduced by 猜測詞意題.根據(jù)后面的介紹"In other words,sitting is killing us."總結出,久坐之后的副作用不能靠好的飲食和鍛煉來減輕.
79.helps blood sugar become level quicker and burns more calories 概括題.第四段主旨句為"Stand up for health.Health experts suggest we break up those many hours spent sitting with more hours spent standing."告訴我們通過站可以幫助我們保持健康,緊接著列舉了兩個機構所做的實驗.
80.Standing provides the constant,almost imperceptible increase in muscle activity./Standing provides simple movement that keeps blood sugar under control. 細節(jié)題.第六段"our bodies also need the constant,almost imperceptible(感覺不到的) increase in muscle activity that standing provides"告訴我們站立可以給我們提供讓人感覺不到的肌肉運動.
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. 主旨大意題.通過整篇文章的描述,可以得出站立可以幫助我們保持健康.
點評 閱讀表達主要考察學生對文章大意的把握,并能根據(jù)要求找到信息之后,進行整合重組,把字數(shù)控制在范圍內.