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
The predictability of our mortality rates is something that has long puzzled social scientists. After all, there is no natural r
The predictability of our mortality rates is something that has long puzzled social scientists. After all, there is no natural r
admin
2014-12-31
83
问题
The predictability of our mortality rates is something that has long puzzled social scientists. After all, there is no natural reason why 2,500 people should accidentally shoot themselves each year or why 7,000 should drown or 55,000 die in their cars. No one establishes a quota for each type of death. It just happens that they follow a consistent pattern year after year.
A few years ago a Canadian psychologist named Gerald Wilde became interested in this phenomenon. He noticed that mortality rates for violent and accidental deaths throughout the western world have remained oddly static throughout the whole of the century, despite all the technological advances and increases in safety standards that have happened in that time. Wilde developed an intriguing theory called "risk homeostasis". According to this theory, people instinctively live with a certain level of risk. When something is made safer, people will get around the measure in some way to reassert the original level of danger. If, for instance, they are required to wear seat belts, they will feel safer and thus will drive a little faster and a little more recklessly, thereby statistically canceling out the benefits that the seat belt confers. Other studies have shown that where an intersection is made safer, the accident rate invariably falls there but rises to a compensating level elsewhere along the same stretch of road. It appears, then, that we have an innate need for danger.
In all events, it is becoming clearer and clearer to scientists that the factors influencing our lifespan are far more subtle and complex than had been previously thought. It now appears that if you wish to live a long life, it isn’t simply a matter of adhering to certain precautions ..., eating the right foods, not smoking, driving with care. You must also have the right attitude. Scientists at the Duke University Medical Center made a 15-year study of 500 persons personalities and found, somewhat to their surprise, that people with a suspicious or mistrustful nature die prematurely far more often than people with a sunny disposition. Looking on the bright side, it seems, can add years to your life span.
What social scientists have long felt puzzled about?
选项
A、The mortality rate can not be predicted.
B、The death types remained stable year after year.
C、A quota for each type of death has not come into being.
D、People lost their lives every year for this or that reason.
答案
B
解析
细节题。短文开篇就提出长期困扰科学家的问题,根据第一段最后一句Itjust happens that they follow a consistent pattern year after year.即死亡类型遵循着一种不变的模式。故选项B正确。
转载请注明原文地址:https://kaotiyun.com/show/uRq7777K
0
大学英语四级
相关试题推荐
Gettingagoodnight’ssleephaslongbeenknowntoconsolidatetheday’smemories,movingthemfromshort-termstorageintolon
Gettingagoodnight’ssleephaslongbeenknowntoconsolidatetheday’smemories,movingthemfromshort-termstorageintolon
AaronSwartz.thebrilliantyoungsoftwareprogrammerandInternetactivistwhoinspiredaweandreverence(尊敬)fromleadingfigur
AaronSwartz.thebrilliantyoungsoftwareprogrammerandInternetactivistwhoinspiredaweandreverence(尊敬)fromleadingfigur
AaronSwartz.thebrilliantyoungsoftwareprogrammerandInternetactivistwhoinspiredaweandreverence(尊敬)fromleadingfigur
Two-thirdsofAmericansareoverweightorobese.Developingcountriesarecatchingup.InChinanearly30%ofadultsaretoowid
Holdingontothebeliefthatchildrenwillshedtheir"babyfat"astheygetoldermayallowthechildhoodobesityepidemiclas
A、Eatmore.B、Takeexercises.C、Avoidstressfulstuff.D、Quitdrinking.B细节辨认题。短文中明确提到,当人们更健康地饮食、运动、戒掉烟、更好的处理压力及更爱别人时,就会感觉很好。四个选
Allovertheworld,yourchancesofsuccessinschoolandlifedependmoreonyourfamilycircumstancesthanonanyotherfactor
TheymaynothavethenamerecognitionofaGoogleoraYahoo,buttheycanclaimtobelonginthesameleague.Thewebsitesof
随机试题
兼具茶味和花香,饮后使人神清气爽的茶有()。
在装配一个结构件时,只能有一个装配基准面。
HowdotheMoviesDoIt?①Haveyoueverseenamovieinwhichabuildingwasburneddownorabridgewasdestroyed?Haveyou
对呼吸心跳停止病人实施仰头抬颏的目的是
真空加压铸造机熔金加热的原理是
下列关于《中华人民共和国固体废物污染环境防治法》中的要求,表述不正确的是()
对水泥混凝土路面断板治理时,对于轻微断裂、裂缝无剥落或轻微剥落,裂缝宽度小于3mm的断板,宜采用()的方法。
根据合同法律制度的规定,下列情形中,构成有效承诺的是()。
已知函数y=(a-1)x2+2ax+1(a∈R),在x∈[1,3]时为单调递增函数,求a的取值范围.
x=2.6,表达式round(x)的结果是()。
最新回复
(
0
)