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
考研
The 20th century witnessed two profound changes in regions of the world where people are well educated and science and technolog
The 20th century witnessed two profound changes in regions of the world where people are well educated and science and technolog
admin
2015-09-30
69
问题
The 20th century witnessed two profound changes in regions of the world where people are well educated and science and technology flourish: Life expectancy nearly doubled, and fertility rates fell dramatically. As a result, individuals and populations are aging.
Virtually all educated people are aware of the graying of the United States, yet relatively few are as aware of its implications for science, technology, and human culture. Longer life is a remarkable achievement, but now we need to apply what we are learning in the natural and social sciences to redesign human culture to accommodate long lives. We need to find cures for Alzheimer’s disease and arthritis, develop technologies that render many age-related frailties such as poor balance invisible in the way eyeglasses now compensate for presbyopia, and begin seriously rethinking cultural norms, such as the timing of education and retirement.
Longevity is the largely unexpected consequence of improvements in general living conditions. Genetically speaking, we are no smarter or heartier than our relatives were 10, 000 years ago. Nonetheless, in practical terms we are more biologically fit than our great-grandparents. Robert Fogel and his colleague Dora Costa coined the term " technophysio evolution" to refer to improvements in biological functioning that are a consequence of technological advances. They point out that technologies developed mostly in the past century vastly improved the quality and sustainability of the food supply. Subsequent improvements in nutrition were so dramatic that average body size increased by 50% and life expectancy doubled. The working capacity of vital organs greatly improved. Breakthroughs in manufacturing, transportation, energy production, and communications contributed further to improvements in biological functioning. Medical technology now enables full recovery from accidents or illnesses that were previously fatal or disabling.
Remember, however, that advances of the 20th century did not aim to increase longevity or alleviate the disabling conditions of later life. Longer life was the byproduct of better conditions for the young. The challenge today is to build a world that is just as responsive to the needs of very old people as to the very young. The solutions must come from science and technology. Unlike evolution by natural selection, which operates across millennia, improvements in functioning due to technological advances can occur in a matter of years. In fact, given that the first of the 77 million Baby Boomers turned 60 in 2006, there is no time to waste. To the extent that we effectively use science and technology to compensate for human frailties at advanced ages, the conversation under way in the nation changes from one about old age to one about long life, and this is a far more interesting and more productive conversation to have.
One of the radical changes in developed nations in the 20th century was that______.
选项
A、populations grew unexpectedly
B、the majority were well educated
C、life expectancy increased sharply
D、science and technology advanced
答案
C
解析
根据第一段中的“The 20th century witnessed two profound changes…flourish:Lifeexpectancy nearly doubled,…”,C应为答案。
转载请注明原文地址:https://kaotiyun.com/show/ARzZ777K
0
考研英语一
相关试题推荐
Cultureisactivityofthought,andreceptivenesstobeautyandhumanefeeling.【C1】______ofinformationhavenothingtodowith
Cultureisactivityofthought,andreceptivenesstobeautyandhumanefeeling.【C1】______ofinformationhavenothingtodowith
ControlanUniversityLogisticNumber,BoycottSchoolFeesRiseOverthelasttwodecades,collegesanduniversitiesdoubled
ControlanUniversityLogisticNumber,BoycottSchoolFeesRiseOverthelasttwodecades,collegesanduniversitiesdoubled
【C1】______wehearmuchaboutthe"newfather",themanwho【C2】______anactiveroleintheday-todaycareofhischildren,ther
【C1】______wehearmuchaboutthe"newfather",themanwho【C2】______anactiveroleintheday-todaycareofhischildren,ther
【C1】______wehearmuchaboutthe"newfather",themanwho【C2】______anactiveroleintheday-todaycareofhischildren,ther
Everyonemusthavehadatleastonepersonalexperiencewithacomputererrorbythistime.Bankbalancesaresuddenlyreported
ToliveintheUnitedStatestodayistogainanappreciationforDahrendorfsassertionthatsocialchangeexistseverywhere.Te
Manyteachersbelievethattheresponsibilitiesforlearningliewiththestudent.(1)_____alongreadingassignmentisgiven,
随机试题
知一信一行模式中,行为改变的基础是【】
盐度周期性变化明显的生态系统是()
子宫增大不会出现在
正态分布的数值变量资料,描述离散趋势的指标最好选用
Vitali反应可用以鉴别的药物为
孙某投资设立了一家个人独资企业,在下列哪些情况下,该个人独资企业应当解散?
评估中常用的逻辑分析方法主要有()。
在教学中为了实现知识的迁移,教师应该应用(),使学生在学习和思维中将事物的非本质属性从本质属性中剔除,更好地掌握概念问的因果联系。
2014年我国实施“单独两孩”生育政策,出生人口1687万人,比上年增加47万人。2016年实施“全面两孩”生育政策,出生人口1786万人,比上年增加131万人;出生率与“十二五”时期年平均出生率相比,提高了0.84个千分点。201
在采用三级模式结构的数据库系统中,如果对数据库中的表Emp创建聚簇索引,那么改变的是数据库的______。
最新回复
(
0
)