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Sitting for more than three hours a day ...

Sitting for more than three hours a day can decrease a person’s life expectancy(预期寿命)by two years, even if her or she is physically active and gets rid of (摆脱)dangerous habit like smoking ,according to a study. Watching TV for more than two hours a day can worsen that problem, decreasing life expectancy by another 1.4 years.

The analysis comes just two years after Australian researchers found that people who said they watched TV for more than four hours a day were 46% more likely to die of any cause than people who said they spent less than two hours a day watching TV. Those watching TV more than four hours a day were also 80% more likely to die of cardiovascular (心血管的) disease. “Long-sitting behavior is something we need to take note of beyond telling people to get 30 minutes of activity a day ,” said Peter T. Katzmarzyk, one of the lead researchers. But while the evidence of illnesses is increasing, it remains difficult for many people to find time to get on their feet, especially if they do desk jobs.

“Try to stand as much as you can,” Dr Katzmarzyk said. “Typically when you are on the telephone you can stand and use the speakerphone. Instead of e-mailing someone in the office, just get up and so to talk to them.” However , Dr Katzmarzyk added, standing shouldn’t be alternative to exercising, but an alternative to sitting . “Several studies show that when you’re sitting , your leg muscles are completely inactive,” he said . “When you’re sitting and completely inactive, this is when you run into trouble managing blood sugar.”

1.What is the main idea of the first paragraph?

A. Watching TV too long can worsen our mental health.

B. We should be active and give up smoking.

C. Sitting for too long a time can shorten one’s life.

D. Smoking too much can be harmful to health.

2.The  researchers draw the conclusion of the effect of long-sitting behavior by_______.

A. making comparisons(比较)          B. listing figures

C. giving examples                   D. classifying facts

3.What does  Dr Katzmarzyk think of long-sitting behavior ?

A. It warns  people to exercise 30 minutes a day.

B. It’s a bad behavior worth considering seriously.

C. It can lead to death at once.

D. It is good for desk job workers.

4.According to Dr Katzmarzyk, if you are sitting all the time, you may__________.

A. phone your friends and talk about your problem

B. put on weight quickly and become more  inactive

C. want to have more sugar for your meals

D. find it hard to keep your blood sugar proper

 

1.C 2.A 3.B 4.D 【解析】 试题分析:新的研究表明,久坐会缩短一个人的寿命,给你的健康带来威胁。 1.C段落大意题。根据第一段第一句中的“Sitting for more than three hours a day can decrease a person’s life expectancy(预期寿命)by two years”可知,答案为C项。 2.A细节理解题。作者在第二段用数据比较的方式说明了久坐和人的寿命之间的关系,故选A项。 3.B推理判断题。依据文章第二段中Katzmarzyk所说的话及最后一段中的“your leg muscles are completely inactive”和“this is when you run into trouble managing blood glucose(血糖)”可知,Dr.Katzmarzyk认为久坐对身体不利,我们应认真对待这个坏习惯。故选B项。 4. 【名师点拨】 推理判断题要求在理解原文表面文字信息的基础上,做出一定的推理判断,从而得到文章的隐含意义和深层意义。推理判断题所涉及的内容可能是文中的某一句话,也可能是某几句话,所以,推理题的答案只能是根据原文表面文字信息一步推出的答案:即对原文某一句话或某几句话所作的同义改写或综合。推理判断题的题干中通常含有infer, suggest, imply, conclude indicate等标志性词语。 这种题型主要包括细节判断题、态度观点推断题、写作意图推断题、文章出处判断题和猜测想象推断题。第28小题D 推理判断题。依据文章的最后一句可知,Katzmarzyk认为,如果长时间地坐着,人的血糖就会出现问题。故选D项。 考点:考查健康类阅读
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