首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
请阅读短文,完成此题。 Move over Methuselah. Future generations could be living well in...
请阅读短文,完成此题。 Move over Methuselah. Future generations could be living well in...
admin
2020-12-24
34
问题
请阅读短文,完成此题。
Move over Methuselah. Future generations could be living well into their second century andstill doing Sudoku, if life expectancy predictions are true. Increasing by two years every decade,they show no signs of flattening out. Average lifespan worldwide is already double what it was 200years ago. Since the 1980s, experts thought the increase in life expectancy would slow down andthen stop, but forecasters have repeatedly been proved wrong.
The reason behind the steady rise in life expectancy is "the decline in the death rate of theelderly", says Professor Tom Kirkwood from Newcastle University. He maintains that our bodies areevolving to maintain and repair themselves better and our genes are investing in this process to putoff the damage which will eventually lead to death. As a result, there is no ceiling imposed by thereahties of the ageing process."There is no use-by-date when we age. Ageing is not a fixed biological process," Tom says.
A large study of people aged 85 and over carried out by Professor Kirkwood discovered that there were a remarkable number of people enjoying good health and independence in their late 80s and beyond. With people reaching old age in better shape, it is safe to assume that this is all due to better eating habits, living conditions, education and medicine.
There are still many people who suffer from major health problems, but modem medicine means doctors are better at managing long-term health conditions like diabetes, high blood pressure and heart disease."We are reaching old age with less accumulative damage than previous generations. We are less damaged," says Professor Kirkwood. Our softer lives and the improvements in nutrition and healthcare have had a direct impact on longevity.
Nearly one-in-five people currently in the UK will live to see their lOOth birthday, the Office for National Statistics predicted last year. Life expectancy at birth has continued to increase in the UK--from 73.4 years for the period 1991 to 1993 to 77.85 years for 2007 to 2009. A report in Science from 2002 which looked at life expectancy patterns in different countries since 1840 concluded that there was no sign of a natural limit to life.
Researchers Jim Oeppen and Dr. James Vaupel found that people in the country with the highest life expectancy would live to an average age of 100 in about six decades. But they stoppedshort of predicting anything more.
"This is far from eternity: modest annual increments in life expectancy will never lead toimmortality," the researchers said.
We do not seem to be approaching anything like the limits of life expectancy, says Professor David Leon from the London School of Hygiene and Tropical Medicine. "There has been no flattening out of the best of the best--the groups which everyone knows have good life expectancy and low mortalit_y"he says.
These groups, which tend to be in the higher social and economic groups in society, can live for several years longer than people in lower social groups, prompting calls for an end to inequalities within societies.
Within populations, genes also have an important role to play in determining how long we could survive for---but environment is still the most important factor.
It is no surprise that healthy-living societies like Japan have the highest life expectancies in the world. But it would still be incredible to think that life expectancy could go on rising forever. "I would bet there will be further increases in life expectancy and then it will probably begin to slow," says Tom, "but we just donTt know."
The underlined phrase "this process" in Paragraph 2 refers to process.
查看材料
选项
A.the ageing
B.the body-evolving
C.the genes-repairing
D.the body's putting-off-damage
答案
B
解析
由文章第二段第二句话“He maintains that our bodies are evolving to maintain and repair themselves better and our genes are investing in this process to put off the damage which will eventually lead to death”.可知我们的身体以更好地维持和自我修复的方式成长,并且我们的基因也参与进这个过程来延迟破损。这个过程指的是身体的成长过程。所以B项正确。
转载请注明原文地址:https://ti.zuoweng.com/ti/ZLT8KKKQ
相关试题推荐
ItisintheFutureMallwhereyouboughtacoat___________hersisterworks.A.wh
Evenwhen__________tosuchtoughlivingconditions,thechildrenwouldnever...
请阅读短文,完成此题。 Whatshouldyouthinkaboutintryingtofindyourcareer?Youa...
请阅读短文,完成此题。 Whatshouldyouthinkaboutintryingtofindyourcareer?Youa...
请阅读短文,完成此题。 Whatshouldyouthinkaboutintryingtofindyourcareer?Youa...
请阅读短文,完成此题。 ResultsshowedthatatleastatenthoftheHarvardfirst-yearu...
请阅读短文,完成此题。 ResultsshowedthatatleastatenthoftheHarvardfirst-yearu...
请阅读短文,完成此题。 Polyester(聚酯)isnowbeingusedforbottles.ICI,thechemical...
请阅读短文,完成此题。 Polyester(聚酯)isnowbeingusedforbottles.ICI,thechemical...
请阅读短文,完成此题。 Polyester(聚酯)isnowbeingusedforbottles.ICI,thechemical...
随机试题
商业银行应将借款人住房贷款的月房产支出与收入比控制在()(含)以下,月所有债
基金资产总值是指基金全部资产的价值总和。现已知A公司的基金资产总值为450万元,
重点向国家基础设施、基础产业和支柱产业项目以及重大技术改造和高新技术产业化项目
建设工程项目的风险中,属于经济与管理风险的是()。
成本费用按成本性态可分为()。
不宜于留罐处的拔罐可选用 A.留罐法 B.走罐法 C.闪罐法 D.刺血拔
下列不属于药师的工作技能的是()。A.审核处方B.发药与用药教育C.药品管理D.药品检测E.药物咨询
关于施工现场消防器材配备说法正确的有()。A.临时搭设的建筑物区域内100㎡配备2只I0L灭火器B.施工现场办公区可以不建立防火检查制度C.临时木料间、油漆
贷款能否成功及贷款的额度,取决于( )贷款审批的结果。A.房地产经纪机构B.中央人民银行C.商业银行D.交易资金监管机构
(2018年)黄河公司因技术改造需要,2019年拟引进一套生产线,有关资料如下: (1)该套生产线总投资520万元,建设期1年,2019年年初投入100...