Question

    Are you wondering whether it’s worth going for a little jog? Don’t hesitate, and get your sports shoes on. A new study shows that proper running lowers the risk of death before the normal time.

In an analysis of 14 previous studies from the US and Denmark, the group of researchers from institutes in Australia and Finland concluded that increasing running participation would probably lead to substantial improvements in population health and longevity. The studies involved 232,149 participants over time periods ranging from 5. 5 to 35 years.

On the whole, people running any distance were associated with a 27% lower risk of death from all causes than those who did not, the study shows. Running was also related with a 30% and 23% lower risk of death from cardiovascular(心血管的)disease and cancer, respectively.

Previous studies had concluded “inconsistent findings” about whether running could lower the risk of premature death, according to the researchers. Lead researcher Jim White, a professor at Victoria University in Melbourne, told CNN: “Our recent findings may encourage physically inactive individuals to take up running and those who already run to keep on doing it.”

He added that doctors may be encouraged by our findings to promote running as a part of “lifestyle medicine”. In their paper, which will be published in the British Journal of Sports Medicine, the researchers say health professionals are sometimes wary of promoting running because vigorous(剧烈的)use of it has been linked with sudden heart death.

Jim and his team deny this by noting that the benefit of running outweighs the risk. However, they did say advice should be given on a case-by-case basis, as running might not be appropriate for everyone. Although running has a clear health benefit, the researchers point out that higher “doses” of running may not reduce the risk of premature death further. According to the WHO’s guidelines, adults aged between 18 and 64 should take 150 minutes of gentle exercise or 75 minutes of vigorous exercise each week.

1.What did the new study focus on?

A.The benefit of jog. B.People’s lifestyles.

C.People’s living conditions. D.The risk of jog.

2.What may the study contribute to according to Jim?

A.Doctors’ quicker treatment.

B.People’s losing weight.

C.People’s involvement in running.

D.Researchers’ promotion of sport.

3.What does the underlined word “wary” in paragraph 5 mean?

A.Certain. B.Tired.

C.Cautious. D.Confident.

4.What’s the last paragraph mainly about?

A.The risk of exercising vigorously.

B.The reasons why people should keep running.

C.The suggestions on running appropriately.

D.The argument about whether running benefits people.

Answer

1.A

2.C

3.C

4.C

【解析】

这是一篇说明文。文章主要讲述适合的跑步运动可以降低死亡的风险，但是过量的运动并不能减少早逝的风险。

1.细节理解题。由第一段最后一句“A new study shows that proper running lowers the risk of death before the normal time.”可知，一项新研究表明适合的跑步可以在正常时间之前降低死亡的风险。由此可见，这项新研究关注的是跑步的好处。结合选项可知，选项A正确。

2.细节理解题。由第四段Jim说的话“Our recent findings may encourage physically inactive individuals to take up running and those who already run to keep on doing it.”可知，我们最近的调查结果可能会行动上鼓励不活动的人群开始跑步，并且那些已经跑步的人们继续做这件事。由此可知，这项研究有助于人们加入跑步。结合选项可知，选项C正确。

3.词义猜测题。由第五段最后一句“the researchers say health professionals are sometimes wary of promoting running because vigorous(剧烈的)use of it has been linked with sudden heart death.”可知，研究者说因为剧烈的跑步已经和突发性心脏死亡有关系，健康专家们有时候对宣传跑步是谨慎小心的。由此可见，健康专家考虑到剧烈跑步的危害对跑步这项运动的推荐是谨慎对待的，单词wary应表示“谨慎小心”的意思。结合选项可知，选项C正确。

4.主旨大意题。由最后一段的第二句“However, they did say advice should be given on a case-by-case basis, as running might not be appropriate for everyone.”和最后一句“According to the WHO’s guidelines, adults aged between 18 and 64 should take 150 minutes of gentle exercise or 75 minutes of vigorous exercise each week.”可知，但是他们的确说建议应该基于具体情况分析来提出，因为跑步可能不是对每个人都适合。根据世界卫生组织的指导方针，年龄在18岁到64岁之间的成年人每星期应该有150分钟的轻度运动或者75分钟的激烈运动。由此可见，最后一段主要是针对跑步运动进行提建议。结合选项可知，选项C正确。