坐得太久对你伤害很大。

  People who sit too much every day are at an increased risk of heart disease, cancer and bone ache, even if they exercise, a new study finds.

  “More than one-half of an average person’s day is spent in the office,” Dr. David Alter said in a statement. Researchers looked at 47 studies examining the relationship between sitting and mortality(死亡率). They found that people who sit for long periods were 24 percent more likely to die from health problems during the studies, which started in 2006 and ended last year, compared with people who sat less. The researchers found that excessive sitting was associated with an 18 percent increased risk of dying of diseases and a 17 percent increased risk of dying from cancer during the study periods.

  The researchers also found that people who exercised generally faced lower risks of these health conditions than those who didn’t exercise. But exercising did not completely counteract(抵消) the risks that came with sitting for a long time. “Our study finds that despite the health-enhancing benefits of physical activity, this alone may not be enough to reduce the risk for diseases.” For example, people who sit for long periods, but also exercise, were only one-third less likely to die during the studies than the people who reported have little or no exercise, according to 10 of the 47 studies.

  People can increase their activity levels by trying to stand more, such as when they’re eating a snack or taking public transportation. “Moments when you’re sitting, think of ways to stand,” Biswas told Live Science. “Move as much as you can when you’re not exercising.”

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1.How long did the studies last?

A For 16 years.

B For 47 weeks.

C For 15 years.

D For 10 months.

解析：选C。C 数字计算题。根据第二段“...during the studies, which started in 2006 and ended last year”可知该研究从2006年开始，到去年(2021年)结束，持续了15年，故选C。

2.Which of the following can best replace the underlined part “excessive sitting”?

A Sitting in the offices.

B Sitting for a long time.

C Sitting while studying.

D Sitting for a very short time.

解析：选B。B 词义猜测题。根据第二段上文“久坐的人比坐得更少的人死于健康问题的可能性高24%”和下文“excessive sitting使人们死于疾病的风险增加18%，死于癌症的风险增加17%”可知，“excessive sitting”和“久坐”意思相近，故选B。

3.Who is most likely to develop a disease?

A An English teacher who dances every day.

B An office worker who works on computers often.

C A middle school student who runs a lot.

D A computer repairman who plays soccer.

解析：选B。B 推理判断题。根据第三段可知，不锻炼的人比锻炼的人面临更高的健康风险，久坐但锻炼的人比久坐不锻炼的人更不容易患病，结合选项可知，B项属于既要久坐又不锻炼的人，故选B。

4.What does the last paragraph tell us?

A Thinking while sitting.

B Exercise all the time.

C Increase outdoor activities.

D Move our bodies often.

解析：选D。D 段落大意题。根据最后一段Biswas说的话可知，本段主要是告诉人们要尽可能多地动起来，故选D。

5.Where might the passage be taken from?

A A newspaper.

B A health website.

C An advertisement.

D A travel book.

解析：选B。B 文章出处题。根据全文可知，文章讲述的是一项关于久坐对健康的影响的研究，属于健康版块，因此可能出现在健康网站上，故选B。