首页
登录
职称英语
On October 31, a newborn baby somewhere in the world will become the 7 billi
On October 31, a newborn baby somewhere in the world will become the 7 billi
游客
2024-08-02
37
管理
问题
On October 31, a newborn baby somewhere in the world will become the 7 billionth member of the human race. Or so says the UN—alternatively, this date could be at least a year too early. Behind the UN’s certainty may lay outdated and unreliable census data. The suspicion is that millions of births and deaths have not been counted and there is huge uncertainty about the rate at which women are giving birth. The precise "day of 7 billion" may not matter much. But the inaccuracies(不精确)make it harder to answer a more important question: is human population set to peak within the next few decades or will it carry on growing beyond that?
Wolfgang Lutz of the Vienna Institute of Demography says the UN is "under political pressure to disregard(忽视)uncertainty and name a date" for 7 billion. But he and colleague Sergei Scherbov estimate that the world probably won’t reach 7 billion until early in 2013, though it could be as late as 2020. The director of the UN population division Hania Zlotnik defends her data but agrees that "an interval of a few months or even a year would be a reasonable range of uncertainty".
One problem for demographers(人口统计学家)is undercounting. Even developed countries calculate their censuses miss up to 3 percent of people. Up-to-date figures have to adjust for both of this and the changes since the last census, which could be decades in the case of some African countries. So adjusting for extra people is routine. The big danger, Scherbov says, may be over-adjusting. The world has seen a dramatic decline in fertility in recent years, with the average woman now having only 2. 5 children, half as many as her grandmother 50 years ago. So there may be far fewer new arrivals than demographers assume.
Questions: [br] In Wolfgang Lutz’s opinion, why does the UN disregard uncertainty and name a date for 7 billion?
选项
答案
Because the UN is under political pressure.
解析
由题干中的Wolfgang Lutz和the UNdisregard uncertainty定位到第二段第一句.由句意可以判断,联合国忽略数据的不确定性并对70亿人口确定一个日期是源于政治方面的压力。
转载请注明原文地址:https://tihaiku.com/zcyy/3702322.html
相关试题推荐
Ithinkthatwhatitisnotthattheworldhasbecomecrueler,it’sjust
Chinahasbecomeanindispensableglobalplayer.YetintheWest,thedom
Ithinkthatwhatitisnotthattheworldhasbecomecrueler,it’sjustthatwe
Thefirsthintofwhatwastobecomethemostsuccessfulmeansofraisingmoney
Theparentswhospeak______maycausetheirchildrentobecomeconfused.A、equiv
Thegiantpanda,thecreaturethathasbecomeasymbolofconservation,isf
Thegiantpanda,thecreaturethathasbecomeasymbolofconservation,isf
SmokinghasbecomesociallyunacceptableintheUS,inpartduetothehealt
SmokinghasbecomesociallyunacceptableintheUS,inpartduetothehealt
SmokinghasbecomesociallyunacceptableintheUS,inpartduetothehealt
随机试题
[originaltext]Inmanystressfulsituations,thebody’sresponsescanimprov
Anewstudyfoundthatinner-citykidslivinginneighborhoodswithmoregre
Whichofthefollowingisthebesttitleforthepassage?[br]What’stheresult
根据本地区的需要,建立社会公用计量标准器具的是A.国务院计量行政部门B.县级以上
患者,男,52岁,因进行性吞咽困难3个月就诊入院。经食管镜检查示食管中段6cm长
下表是某城市四个区2008年第三季度的GDP总量表,请问B区GDP比A区,D区G
在运输价值公式中,运输价值=C+V+M,其中的M表现为()。A:运行材料的消耗
根据我国《人民币银行结算账户管理办法》的有关规定,单位的存款账户包括()。A.
下列关于施工通风、散烟及除尘说法正确的有( )。A.洞内施工禁止使用汽油动力设备
下列砌体结构墙体裂缝现象中,主要原因不是地基不均匀下沉引起的是()。A.纵
最新回复
(
0
)