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
2010-03-22
28
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(配额) 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 interesting theory called "risk homeostasis(自我平衡)". 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 fight 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 is ______.
选项
A、why a quota for each type of death has not come into being
B、why the mortality rate can not be predicted
C、why the death toll remains stable year after year
D、why people lose their lives every year for this or that mason
答案
C
解析
细节题。由题干关键词social scientists和puzzled定位到第一段。该段开头提出the predictability of our mortality rates是长期困扰科学家的问题,量后一句指出It just happens that they follow a consistent pattern year after year(死亡人数年复一年保持稳定),故C为正确选项。
转载请注明原文地址:https://kaotiyun.com/show/f4t7777K
0
大学英语四级
相关试题推荐
A、Population.B、Wars.C、Nuclearexplosions.D、Violenceincrime.DWhathasincreasedgreatlyinthepastdecade?
A、Heshouldconsumelesssalt.B、Heshouldeatlessfattyfoods.C、Heshouldaddmoreproteinproductstohisdiet.D、Heshould
A、Toplaybasketballwithfriendsfromwork.B、Totryoutforthecompanybaseballteam.C、Togetinshapeandcompeteinacycl
A、Hewasaclosefriendofherfamily.B、Hefellinlovewithher.C、Herealizedshewassogood.D、Hewantedhertoplayforhi
A、Earnmoremoney.B、Openanotherbankaccountforsaving.C、Openanotherbankaccountforspending.D、Findabetterjob.BWhat
A、Washington,AdamsaridJeffersonaremostfamousinthehistoryoftheUnitedStates.B、Washington,AdamsandJeffersonhadma
A、Ateacherandstudent.B、Anemployerandemployee.C、Agrandparentandgrandchild.D、Twonewfriends.CW:Thosecomputergames
OverthepastdecadeoneprimaryfunctionoftheWorldBankhasbeen______.Wecanlearnfromthepassagethat______.
随机试题
成人股骨头最主要的血液供应来源于
男性,21岁,肾活检术后2小时,突发右腰部疼痛。超声显示肾周梭形无回声区,内透声差,提示
病变最可能的部位首先应做的辅助检查是
生品能升能散,长于涌吐风痰,炮制后变升为降,改变了涌吐痰涎的副作用,既缓和了药性,又利于粉碎和煎出的是()。
一般要求在成对的受过训练的评分者之间,其平均一致性达到()以上,才认为评分是客观的。
WhenHarryfirststartedinuniversity,hereallyfelt________withhismajor-philology.
【2014年上海B卷第120题】我国的军事著作历史悠久,北宋颁布的《武经七书》,作为军事教育官方课程,流传至今。下列不属于《武经七书》的是()。
C++系统预定了4个用于标准数据流的对象,下列选项中不属于此类对象的是()。A)coutB)cinC)cerrD)cset
请在“答题”菜单中选择相应的命令,并按照题目要求完成下面的操作。注意:以下的文件必须保存在考生文件夹下。文涵是大地公司的销售部助理,负责对全公司的销售情况进行统计分析,并将结果提交给销售部经理。年底,她根据各门店提交的销售报表进行统计分析。打开素材,
北京大学的成立标志着中国近代史上高等教育的开始。
最新回复
(
0
)