首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Basically, there are three types of fatigue: physical, pathological (由疾病引起的), and psychological. As you might suspect, each diff
Basically, there are three types of fatigue: physical, pathological (由疾病引起的), and psychological. As you might suspect, each diff
admin
2011-04-04
54
问题
Basically, there are three types of fatigue: physical, pathological (由疾病引起的), and psychological. As you might suspect, each differs significantly from the others.
When you exercise your body you produce waste products. Muscles, for example, discard lactic acid (乳酸) into the blood; cells dump in carbon dioxide. When these wastes reach a certain level in the blood, the brain is notified and your activity level drops. Excess wastes in the muscles may produce soreness. If the blood of a physically fatigued animal is injected into a rested animal, it will produce fatigue. The solution to this type of fatigue is simple - rest. That should revive you; if it doesn’t, another cause should be sought.
Have you ever become involved in so many activities that you had to be in two places at once? This is what happens when your body has a disease. The cells are overtaxed and cannot keep up with both fighting the disease and keeping you active. The result is fatigue. Some communicable diseases like the flu and colds are notorious for draining your energy. Other non-communicable diseases, like anemia (贫血), drain you because you are lacking an important body ingredient. Being overweight can cause pathological fatigue. It should be obvious that this type of fatigue is not going to go away without treatment. In a way, pathological fatigue is a lifesaver. It lets you know something is wrong and that you need rest. Even a poor diet can produce pathological fatigue. Frequently, people who go on crash diets develop pathological fatigue, and if the diet is not improved, they may do physical harm to their bodies.
Here is the most common type of fatigue. Almost everybody experiences it now and then. Often, the cause is an emotional war you are waging with yourself or those around you. Some of these familiar factors can bring on psychological fatigue: worries, stress, lack of exercise, boredom, depression. If you know someone with psychological fatigue, would you advise him to rest? No way! That might be fine for our other types of fatigue, but for this one, it’s deadly. If you are ever going to be able to cope with stress, depression, or worry, you need oxygen in your cells and a more optimistic attitude. Get out of the chair and do something! Believe it or not, many people throw themselves into physical labor like cleaning or carpentry to "defatigue" themselves. If you find yourself in a particularly stressful situation that you can’t physically escape, escape mentally. When fatigue continues, maybe you need to get to the root of the problem.
Physical fatigue is usually caused by ______.
选项
A、transmittable diseases
B、too many stimulants
C、lack of physical exercise
D、excess wastes in the bloodstream
答案
D
解析
根据题干中的Physical fatigue将本题出处定位于第二段。该段第五句提到,“肌肉中超量的废物会产生酸痛感”,[D]与原文意思相符,故为答案。第三段第五句提到一些传染病能严重地消耗人的能量,第六句提到另一些非传染病也可以,但这里所说的疲劳与题干的“身体疲劳”不符,故不选[A]。[B]未在文中提及。[C]是针对第四段第四句设的干扰项。
转载请注明原文地址:https://kaotiyun.com/show/vqo7777K
0
大学英语六级
相关试题推荐
A、Englishteachersusuallylikereadingalot.B、TheEnglishliketoreadalotandlistentomusic.C、NoteveryonefromEngland
Occasionalself-medicationhasalwaysbeenpartofnormalliving.Themakingandsellingofdrugshavealonghistoryendarecl
A、Manystudentstrytostudythewholenightbeforeanexam.B、Sleepmayimprovememory.C、Examsmayharmmemory.D、Sleepcanim
A、Howprimitivepeopleusedflags.B、Whattheancientmeansofcommunicationwas.C、Whythetorchtowerswerebuilt.D、HowtheG
A、Shehasbadstudyhabits.B、Shesleepstoomuch.C、Shewakesuplate.D、She’sanexcellentstudentA综合推断题。女士说自己熬了一整夜在为历史期中考试复习
AprilFools’Special:History’sHoaxesHappyAprilFools’Day.Tomarktheoccasion,NationalGeographicNewshascompiled
PartⅡReadingComprehension(SkimmingandScanning)Directions:Inthispart,youwillhave15minutestogooverthepassageq
A、Asksomeoneelsetohelpthewoman.B、Askthewomanfordirections.C、Showthewomanthemap.D、Showthewomanwherethedormi
A、Thewomansawahorrormovie.B、Thewomanenjoyedthemovieverymuch.C、Themanwenttotheshowwiththewoman.D、Themanas
随机试题
A.低张性缺氧B.循环性缺氧C.血液性缺氧D.组织性缺氧E.以上都不是以动脉血氧分压降低为特点的缺氧属于
空腹时大肠最常见的运动形式是()。
依据《规划环评条例》,规划环境影响评价技术机构弄虚作假或者有失职行为,造成环境影响评价文件严重失实的,由国务院环境保护主管部门予以();构成犯罪的,依法追究刑事责任。
背景某新建办公楼工程,主楼建筑面积29600m2,地上16层,地下1层,基础埋深4m,现浇混凝土框架一剪力墙结构。附楼建筑面积5000m2混合结构,地上3层。地下防水采用防水混凝土附卷材防水,屋面采用卷材防水,室内采用涂料防水。土方开挖采用放坡形
下列项目中,不通过“其他应付款”科目核算的是( )。
债务人将债务的全部或部分转移给第三人的,根据《中华人民共和国合同法》的规定,正确的做法是()。
由于五代时期经常改朝换代,一切因陋就简,顾不上进行新的建设。所以,后周以前,开封的规模同唐朝差不多。到郭威建立后周以后,实行政治、经济改革,情况有所好转。最能准确复述这段话主要意思的是()。
根据以下资料。回答下列问题。1990年以后,辽宁城乡居民收入差距出现了一个上升——下降——再上升的过程,其变动轨迹大体可以划分为三个阶段。第一阶段1990-1994年,城乡居民的收入比率由1.85扩大到2.14,收入绝对差额由714元扩大到
根据所给资料,回答下列小题。我国2012年7月份外贸出口同比仅增长1%,主要原因是当月我国对欧盟的出口大幅度下降所导致,预计下半年中国外贸形势将更加严峻。2012年1一7月,我国进出口总值21683.7亿美元,比去年同期增长7.1%。其中,出口1131
A、Someoneisgoingtobreakintoherhouse.B、Shehasnowheretogonextweekend.C、Shecan’tfindarealestateagent.D、She’s
最新回复
(
0
)