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
2012-02-02
88
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.
What is the main topic of this passage?
选项
A、The consequences of fatigue.
B、The reason why people need rest.
C、The dangers of fatigue.
D、Types of fatigue.
答案
D
解析
根据题干中的main topic可知,本题考查文章主旨。文章首句为主题句,“疲劳分为三种…”,[D]与原文意思相符,故为答案。[A]意为“疲劳的结果”,即疲劳的表现,与该段意思不符,故排除。文章第二段提到,身体感到疲劳时,休息是最好的解决办法,[B]与之意思相符,但并非整个文章论述的中心,故排除。[C]未在文中提及。
转载请注明原文地址:https://kaotiyun.com/show/jdo7777K
0
大学英语六级
相关试题推荐
A、It’snotalwaysclearwhypeoplebehaveincertainways.B、Peopleusuallyblameothersfortheirmistakes.C、Certaincondition
BorninNorthCarolinain1862,WilliamSidneyPorter,thismasterofshortstoriesismuchbetterknownunderhispenname"O.
A、Thosewhoknowhowtoprogramcomputers.B、Thosewhogetspecialaidfromtheirteachers.C、Thosewhoareveryhardworking.D、
HowSledDogsWorkThey’rephysicalwonders-abletoendureextremeconditionsforextensiveperiodsoftimewhilerunningf
A、5:15.B、4:45.C、5:45.D、4:15.D根据对话中提到的JackandIalwaysgetupataboutaquartertofive可推测,女士每天早上4:45起床,故B项为答案。
A、Hedoesn’tknowwhattoolstobring.B、Hedoesn’tmindhelpingthewoman.C、Thewomanwon’thavetocarrytools.D、Thedonkeys
Occasionalself-medicationhasalwaysbeenpartofnormalliving.Themakingandsellingofdrugshavealonghistoryandarecl
A、Exposingoneselftothetargetculture.B、Attendingregularlyagoodlanguageprogram.C、Comingupwithastudyplan.D、Develo
Thebacteriathatcauseacommonfood-borneillnessshowlowdrugresistanceinAustralia,unlikesimilarstrainsfromtheUnite
Caughtinasqueezebetweenthehealthneedsofageingpopulationsononehandandthefinancialcrisisontheother,government
随机试题
2014年年末,某省公路里程172167千米,同比增长2.8%,其中,高速公路4237千米,同比增长3.3%。国家铁路正线延展里程和营业里程分别为15060千米和9351千米,分别同比增长-0.28%和0.23%。地方铁路正线延展里程和营业里程分别为180
不具备路由和跨网段操作功能的协议是()
额窦可显示于下列哪些体位片
过期流产的刮宫时机应在
下列行为违反了《建设工程勘察设计管理条例》的是()。
西南矿业公司产出的矿产原材料金属含量比较高,是富矿,在市场上的售价比其他矿高。目前冶炼产品的市场竞争激烈,从经济效益的角度来看,对自己的矿进行进一步冶炼再出售不合算,所以西部矿业决定停止加工冶炼业务,直接出售自己的矿,以获取更大的利润。这反映的风险管理工具
()是指采用一种预先设计的结构性表格,由考评者以文字的形式对员工的行为做出描述的考评方法。
教学与研究发现,学生解决抽象而不带具体情节的问题时比较困难,而解决具体而接近实际的问题时比较容易。()
根据下列材料回答问题。“十一五”期问,我国货物进出口总额累计116806亿美元。其中,出口总额63997亿美元.比“十五”期间增长1.7倍;进口总额52809亿美元,比“十五”期间增长1.4倍。“十一五”前两年,我国货物进出口总额保持23%以上的快速增
下列说法错误的是()。
最新回复
(
0
)