首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
请阅读短文,完成此题。 Here's a warning from health experts: Sitting is deadly. Scient...
请阅读短文,完成此题。 Here's a warning from health experts: Sitting is deadly. Scient...
admin
2020-12-24
24
问题
请阅读短文,完成此题。
Here's a warning from health experts: Sitting is deadly. Scientists are increasingly warningthat sitting for prolonged periods--even if you also exercise regularly--could be bad for yourhealth. And it doesn't matter where the sitting takes place at the office, at school, in the car orbefore a computer or TV--just the overall number of hours it occurs.
Research is preliminary, but several studies suggest people who spend most of their dayssitting are more likely to be fat, have a heart attack or even die.
In an editorial published this week in the British Journal of Sports Medicine, Elin Ekblom-Bakof the Swedish School of Sport and Health Sciences suggested that authorities rethink how theydefine physical activity to highlight the dangers of sitting.
While health officials have issued guidelines recommending ~nini~num amounts of physicalactivity, they haven't suggested people try to limit how much time they spend in a seated position.
"After four hours of sitting, the body starts to send harmful signals," Ekblom-Bak said. Sheexplained that genes regulating the amount of glucose and fat in the body start to shut down.
Even for people who exercise, spending long stretches of time sitting at a desk is still harmful.Tim Armstrong, a physical activity expert at the World Health Organization, said people whoexercise every day--but still spend a lot of time sitting--might get more benefit if that exercisewere spread across the day, rather than in a single bout.
That wasn't welcome news for Aytekin Can,31, who works at a London financial company,and spends most of his days sitting in front of a computer. Several evenings a week, Can alsoteaches jiujitsu, a Japanese martial art involving wrestling, and also does Thai boxing.
"I'm sure there are some detrimental effects of staying still for too long, but I hope that beingactive when I can helps," he said. "I wouldn't want to think the sitting could be that dangerous."
Still, in a study published last year that tracked more than 17,000 Canadians for about adozen years, researchers found people who sat more had a higher death risk, independently ofwhether or not they exercised.
Figures from a US survey in 2003-2004 found Americans spend more than half their timesitting, from working at their desks to sitting in cars.
Experts said more research is needed to figure out just how much sitting is dangerous, andwhat might be possible to offset those effects.
"People should keep exercising because that has a lot of benefits," Ekblom-Bak said. "Butwhen they're in the office, they should try to interrupt sitting as often as possible," she said."Don't just send your colleague an e-mail. Walk over and talk to him. Stand up."
What does the author mean by saying "Even for people who exercise, spending long stretches of time sitting at a desk is still harmful?" (Para.6)?
查看材料
选项
A.Exercising can't help reduce the harm caused by sitting.
B.The harm depends on the prolonged time sitting at a desk.
C.Exercising is not necessary for people.
D.Exercising has no advantages for people who often sit.
答案
B
解析
题干中的句子意为“即使对那些经常锻炼的人来说,长时间坐着也有害。”该句所在段讲到,世界卫生组织的身体锻炼专家蒂姆·阿姆斯特朗说,对于那些每天锻炼但依然有很多时间是处于静坐状态的人来说,如果每天的锻炼可分散进行而不是一次集中完成,效果会更好。由此可推知,久坐的危害取决于持续很长时间的坐的动作,如果锻炼时间和坐下来的时间都很集中,那么危害就很大。因此,正确答案是B。
转载请注明原文地址:https://ti.zuoweng.com/ti/PLT8KKKQ
相关试题推荐
以下是某高中英语教师教授短文的教学片段: (1)Theteacherwrotethenewvocabularydownandasked...
Truefriendshipislikesoundhealth,thevalue__________isseldomknownunt...
请阅读短文,完成此题。 Whatshouldyouthinkaboutintryingtofindyourcareer?Youa...
请阅读短文,完成此题。 Whatshouldyouthinkaboutintryingtofindyourcareer?Youa...
请阅读短文,完成此题。 ResultsshowedthatatleastatenthoftheHarvardfirst-yearu...
请阅读短文,完成此题。 ResultsshowedthatatleastatenthoftheHarvardfirst-yearu...
请阅读短文,完成此题。 ResultsshowedthatatleastatenthoftheHarvardfirst-yearu...
请阅读短文,完成此题。 ResultsshowedthatatleastatenthoftheHarvardfirst-yearu...
请阅读短文,完成此题。 Polyester(聚酯)isnowbeingusedforbottles.ICI,thechemical...
请阅读短文,完成此题。 Polyester(聚酯)isnowbeingusedforbottles.ICI,thechemical...
随机试题
金属结构工程,在综合单价中考虑的有()。
梁山好汉“智多星”“豹子头”等都是()。A.名B.字C.诨号D.别号
Itwas10o′clock___________Jillarrivedattheoffice,whichmadetheboss...
外包机构应具备(),切实防范利益输送。 Ⅰ.审慎评估外包服务的潜在风险与利益冲突 Ⅱ.建立严格的防火墙制度与业务隔离制度 Ⅲ.有效执行信息隔离等内部...
知识点:结核性脑膜炎 小儿结核性脑膜炎晚期表现为A.颈项强直B.定向障碍C.剧烈疼痛D.轻度性格改变E.昏迷
建设工程勘察合同履行管理中,关于监理人的说法错误的是()A.未经发包人批准,监理人无权修改合同B.发包人可以根据工程建设需要确定是否委托监理人进行勘察监理
为了加强食品的监管,我国成立了(),是目前食品安全工作的高层次议事协调机构。A:国家食品药品监督管理部门B:国务院食品安全委员会C:国家卫生与计划生育委员会
我国商业银行经过几年的管理实践,在资产分类方面已经积累了一定的经验,普遍采取以国际会计准则和我国新的()为基础,按照持有目的将资产分为四类。A.《企业会计准则》
以下不属于贷款审查和审批中的风险的是( )。A.不按权限审批贷款,使得贷款超授权发放B.贷款资金发放前,未审核借款人相关交易资料和凭证C.业务不合规,业务
下列对贷款合同保全措施的描述中,不正确的是()。A.债务人以明显S合理的低价转让财产,对债权人造成损害,并且受让人知道该情形的,债权人可以请求人民法院撤销债