首页
登录
职称英语
The predictability of our mortality rates is something that has long puzzled
The predictability of our mortality rates is something that has long puzzled
游客
2024-02-07
9
管理
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. [br] What social scientists have long felt puzzled about?
选项
A、The mortality rate cannot be predicted.
B、The death toll 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It just happens that they followa consistent pattem year after year.即死亡率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://tihaiku.com/zcyy/3429519.html
相关试题推荐
[originaltext]W:Hi,Jim,Ihavesomethingurgenttotalkoverwithyou.Could
[originaltext]W:Hi,Jim,Ihavesomethingurgenttotalkoverwithyou.Could
[originaltext]M:Canyoutellmesomethingabouttheuniversityshuttlebussys
Complainingaboutfaultygoodsorbadserviceisnevereasy.Ifsomethingyo
Complainingaboutfaultygoodsorbadserviceisnevereasy.Ifsomethingyo
Complainingaboutfaultygoodsorbadserviceisnevereasy.Ifsomethingyo
Complainingaboutfaultygoodsorbadserviceisnevereasy.Ifsomethingyo
Complainingaboutfaultygoodsorbadserviceisnevereasy.Ifsomethingyo
Complainingaboutfaultygoodsorbadserviceisnevereasy.Ifsomethingyo
Complainingaboutfaultygoodsorbadserviceisnevereasy.Ifsomethingyo
随机试题
HepretendedtobeanEnglishman,buthisforeignaccentgavehim______.A、awayB
[originaltext]Continuingoursurveyofthe19thcentury,let’stakealook
Theneedforsolarelectricityisclear.Itissafe,ecologicallysound,eff
[originaltext]Ittakes8.3minutesforthesun’slighttravellingat186,28
成年人体内含钙总量占体重的A.2%~3% B.0.5%~1.0% C.1.5
分母不是某年活产总数的指标是A.婴儿死亡率 B.新生儿死亡率 C.孕产妇死亡
建筑安装工程费除()外,其他均按“价税分离”计价规则计算。A.直接费 B
某投资者开仓买入10手3月份的沪深300指数期货合约,卖出10手4月份的沪深30
教育部所属综合大学的附属医院发现脊髓灰质炎疫情,应当报告的部门是A.国家疾病预防
最新回复
(
0
)