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
2011-03-01
48
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 them- selves 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 pre cautions—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 is why______.
选项
A、the mortality rate can not 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
语义理解题 题目问的是长期困扰社会科学家的问题是什么,本题依据是第一段最后一句“It just happens that they follow a consistent pattern year after year”,与选项[B]“死亡人数年复一年保持稳定”相吻合。
转载请注明原文地址:https://kaotiyun.com/show/S8kd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
Ithasalwaysbeenaproblemtodecidewhether"popularmusic"ismusicwhichrepresentsthepeopleorissimplymusicthatthe
Ithasalwaysbeenaproblemtodecidewhether"popularmusic"ismusicwhichrepresentsthepeopleorissimplymusicthatthe
Ithasalwaysbeenaproblemtodecidewhether"popularmusic"ismusicwhichrepresentsthepeopleorissimplymusicthatthe
Ithasalwaysbeenaproblemtodecidewhether"popularmusic"ismusicwhichrepresentsthepeopleorissimplymusicthatthe
BellowisacartoonaboutChinesedomesticmigrationofhumanresourcesinrecentyears.Lookatthecartoonandwriteanessay
ReadthefollowingtextsfromanarticleinwhichpeopletalkedaboutEnglishstudy.Forquestions61to65,matchthenameofe
Readthefollowingarticleinwhichfivepeopletalkabouttheairpollutioninlargecities.Forquestions61to65,matchname
MyfamilyandIrecentlyreturnedfromatriptoAlaska,aplacethatcombinessupernaturalbeautywithabreathtakingamount
ForanincreasingnumberofstudentsatAmericanuniversities,Oldissuddenlyin.Thereasonisobvious:thegrayingofAmerica
Theimportanceandfocusoftheinterviewintheworkoftheprintandbroadcastjournalistisreflectedinseveralbooksthath
随机试题
在工艺管架中管路采用U型管的目的是()。
ADreamoftheRedMansionissaid______intodozensoflanguagesinthelastdecade.
易风化药物可使胶囊壳
监理单位为完成监理任务所需要的工程资料,应当( )。
生产经营单位使用的涉及生命安全、危险性较大的特种设备,以及危险物品的容器、运输工具在投入使用前,不需要符合以下哪个条件。( )
通俗历史读物的健康发展,不仅是史学工作者的_______,也是出版传媒工作者肩上的重任,需要多方互相协作、共同努力,让历史不仅仅是一门象牙塔中的高深学问,更成为滋养民族心灵、让更多人读史以明智的知识_______。依次填入画横线部分最恰当的一项是(
简述贞观之治。
马克思、恩格斯批判地继承了前人的成果,实现了人类思想史上的伟大革命。马克思1845年春天写的《关于费尔巴哈的提纲》和马克思、恩格斯1844~1846年合写的《德意志意识形态》,标志着马克思主义的基本形成;1847年《哲学的贫困》和1848年2月《共产党宣言
Writeanessayof160—200wordsbasedonthefollowingpicture.Inyouressay,youshould1)describethepicturebriefly,
对下列二叉树进行前序遍历的结果是()。
最新回复
(
0
)