时间:2019-01-13 作者:英语课 分类:2006年VOA标准英语(八月)


英语课

By Ernest Leong
Washington, D.C.
21 August 2006
 
watch Population report


The Population Reference Bureau (P.R.B.) released its annual data sheet on global population growth.  The report had some interesting findings. 


Experts in world population growth spoke 1 at the National Press Club in Washington, DC recently about the Population Reference Bureau's, or P.R.B.'s annual data sheet. 



Carl Haub   
  
Carl Haub is a demographer 2 with the P.R.B. "The population data sheet is an annual demographic survey, in which we gather demographic population statistics from all countries in the world."


This year, the data covered a variety of issues affecting population growth, such as AIDS and clean water and sanitation 3.  But the report's main emphasis was on the effects of migration 4 on the world population.


While it is common for people from poorer countries to migrate to developed, wealthier nations, experts found there was also migration between developing countries -- for example, from Guatemala to Mexico.


 
Rachel Nugent 
  
There are any number of reasons for this trend, says Rachel Nugent of the U.S. National Institutes of Health (NIH). "People from very poor countries going to less poor countries.  People fleeing wars and conflict.  People responding to population pressures."


The economy was an important reason people chose to migrate.  In China, for example, millions of people from the countryside moved to the city to find better-paying jobs.


A poor economy may discourage people from moving.  In Italy, where the unemployment rate is high, many men in their 20s and 30s continue to live with their parents.


  
  
Nugent says statistics on the fertility rate were also revealing. "Most developing countries have what we call a youth bulge 5, which means they have a very large number of young people.  That means they're going to continue to have large population growth as those young people have children."


By comparison, the fertility rate in developed countries has been stable, or falling.  In Germany, the drop has been alarming.  Experts predict by the year 2050, approximately 35 percent of Germany's population will be over 60. Part of the reason is high unemployment, which discourages couples from having families.



n.(车轮的)辐条;轮辐;破坏某人的计划;阻挠某人的行动 v.讲,谈(speak的过去式);说;演说;从某种观点来说
  • They sourced the spoke nuts from our company.他们的轮辐螺帽是从我们公司获得的。
  • The spokes of a wheel are the bars that connect the outer ring to the centre.辐条是轮子上连接外圈与中心的条棒。
n.人口统计学家
  • Professor Antonio Golini is a demographer at the University of Rome. 罗马大学安东尼奥教授是位人口统计学家。 来自互联网
  • Demographer William Frey says immigrants with young families will help keep the United States competitive. 人口统计学家佛瑞表示这些年轻的家庭会帮助美国保持竞争力。 来自互联网
n.公共卫生,环境卫生,卫生设备
  • The location is exceptionally poor,viewed from the sanitation point.从卫生角度来看,这个地段非常糟糕。
  • Many illnesses are the result,f inadequate sanitation.许多疾病都来源于不健全的卫生设施。
n.迁移,移居,(鸟类等的)迁徙
  • Swallows begin their migration south in autumn.燕子在秋季开始向南方迁移。
  • He described the vernal migration of birds in detail.他详细地描述了鸟的春季移居。
n.突出,膨胀,激增;vt.突出,膨胀
  • The apple made a bulge in his pocket.苹果把他口袋塞得鼓了起来。
  • What's that awkward bulge in your pocket?你口袋里那块鼓鼓囊囊的东西是什么?
学英语单词
acceptance of materials
at any time
automatic switch grease
barracking
cali-
capstan drum
Caribbee
catwalker
climate-changing
climatic factors
cost base
countrymate
crossover suppressor
curly endives
cylindrick
degree of industrial accumulation
deka-pascal
depolarization phase
diagonal winch
distributed profit
dryside
DTA curve
earthmoving machine
exterior plaster
exuviability
family esocidaes
finish off something
first and second unpaid
floroun
fluid emission rate
g loop
Gallican chant
Gentiana walujewii
gravity cable logging
gripsacks
guoqiang
handle-type fuse
hard polymer
holoplanktonic
hydrolodic acid
I'm all right,Jack.
ice-crystal cloud
ideist
Lambrinudi
laser guided weapon
liability and compensation for pollution damage
light spot millivoltmeter
mckewin
microbending loss
migranin
multi-product production
multiplication of rigging
neutralization pit
nonconceptualized
not married
on the better side of
on-line help
outlying service point
parent-young relation
pelitinib
perfeccion
personal area network
phase-blance current relay
pierson-moskowitz spectrum
planning metrials money
pluvian
pozzuolana
pressure header
profession de foi
protection power gap
Proteocephaloidea
Raknadalur
rate of volume flow
realone
reburn
resection of anterior portion of mandibular ramus
rhodolith
ring pipeline
salviifolium
scholar's mates
short breaks
silylation
sloped bulkhead stiffener
soulja
soybean seed
space simulation
square cylindrical projection
strlae alba tuberis
submarine's awash proceeding state
subtemproalis
to smell the bottom
transmitter antenna
tribolium confusum jacquelin deval
unused resources
vanwall
vapor pressure constant
variable speed-limit sign
vector d
wartime load
water-base mud
winter-hained
woodplanks