Sittingformorethanthreehoursadaycandecreaseaperson's...
问题详情:
Sitting for more than three hours a day can decrease a person's life expectancy(寿命)by two years, even if he or she is physically active and gets rid of dangerous habits like smoking, according to a study.Watching TV for more than two hours a day can worsen that problem, decreasing life expectancy by another l.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."Sedentary (久坐的) behavior is something we need to pay attention to, beyond telling people to get 30 minutes of activity a day ,”said Peter T.Katzmaezyk. 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're on the telephone you can stand and use the speakerphone Instead of emailing someone in the office, just get up and So to talk to them." However, Dr.Katzmarzyk added, standing shouldn't be an 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 glucose (血糖)."
29.What is the main idea of the first paragraph?
A.Watching TV too long can worsen our mental health.
B.We should he active and give up smoking.
C.Silting for too long a time can shorten one's lire.
D.Smoking too much can be harmful to health.
30.The researchers draw the conclusion on the effect of sedentary behavior by .
A.making comparisons B.istin8 figures
C.giving examples D.classifying facts
31.What dues Dr.Katzmarzyk think of sedentary behavior?
A.It warns people to exercise 30 minutes a day.
B.It's a bad behavior worth considering seriously.
C.Sedentary behavior can lead to death at once.
D.Sedentary behavior is good for desk job workers.
32.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.fincl it hard to keep your blood glucose proper
【回答】
CABD
知识点:健康保健类阅读
题型:阅读理解
-
一个质量为4kg的物体静止在足够大的光滑水平地面上.从t=0开始,物体受到一个大小和方向周期*变化的水平力F作...
问题详情:一个质量为4kg的物体静止在足够大的光滑水平地面上.从t=0开始,物体受到一个大小和方向周期*变化的水平力F作用,力F的变化规律如图所示.则( )A.t=2s时物体沿负方向运动的位移最大B.t=4s时物体运动的位移达最小值C.每个周期内物体的速度变化为一定值D.从t=0开...
-
以KCl和ZnCl2混合液为电镀液在铁制品上镀锌,下列说法正确的是( )A.未通电前上述镀锌装置可构成原电池...
问题详情:以KCl和ZnCl2混合液为电镀液在铁制品上镀锌,下列说法正确的是()A.未通电前上述镀锌装置可构成原电池,电镀过程是该原电池的充电过程B.因部分电能转化为热能,电镀时通过的电量与锌的析出量无确定关系C.电镀时保持电流恒定,升高温度不改变电解反应速率D.镀锌层破...
-
下列元素原子半径最大的是 ( )A、Li B、F C、Na D、Cl
问题详情:下列元素原子半径最大的是 ( )A、Li B、F C、Na D、Cl【回答】C知识点:元素周期律题型:选择题...
-
人的生命是从一个小小的__________________发育开始的。
问题详情:人的生命是从一个小小的__________________发育开始的。【回答】受精卵【解析】试题分析:卵细胞和精子都不能进行细胞*、分化、发育等生命活动,只有精子与卵细胞结合形成受精卵时,才标志着新生命的起点,然后种植在子宫内膜上,即怀孕开始,然后受精卵经过细胞*...
相关文章
- 完形填空。It'sWednesdayafternoon.Schoolisover.Thestudentsar...
- Sittingformorethanthreehoursadaycandecreaseaperson's...
- Sittingformorethanthreehoursadaycandecreaseaperson's...
- 单项选择。WheneverMaryreadsaninterestingstory,shecan'tkeepit...
- Thenursesaretryingtheirbesttoreducethepatient'sfear
- 单项选择。WheneverMaryreadsaninterestingstory,shecan'tkeepit...
- 单项选择。WheneverMaryreadsaninterestingstory,shecan'tkeepit...
- Peter'sjobwastoexaminecarswhentheycrossedthefrontier(边境...
- Sittingformorethanthreehoursadaycandecreaseaperson's...
- 单项选择。WheneverMaryreadsaninterestingstory,shecan'tkeepit...