时间:2019-01-06 作者:英语课 分类:农业与发展


英语课

DEVELOPMENT REPORT - World Population by 2050
By Jill Moss 1


Broadcast: Monday, August 30, 2004


This is Gwen Outen with the VOA Special English Development Report.


New research shows that Earth will have more than nine thousand million people by two thousand fifty. The world population is currently 2 estimated at six point four thousand million.


The research is from the Population Reference 3 Bureau, a private group based in Washington. It says most growth will take place in developing countries in Africa and western Asia.


India is expected to pass China as the world's most populated nation. By the middle of the century, the report says, India will have over one and one-half thousand million citizens, an increase of fifty percent.


China currently has one point three thousand million people. The Population Reference Bureau says the population should increase about ten percent by two thousand fifty.


Most industrial nations will see a drop in their populations. The only big exception is expected to be the United States. The report says the United States will remain the third biggest nation. The population is close to three hundred million now. It is expected to reach four hundred twenty million. The report says this will be because of immigration and low death rates among babies.


Between now and two thousand fifty, Niger is expected to be the fastest growing country. The biggest decrease is expected in Bulgaria.


The study is based on information from governments and the United Nations. Researcher Carl Haub wrote the report. He examined infant death rates, life expectancy 4, birth rates and the age structure of nations. The study also considered family planning use and, for the first time, rates of AIDS.


Mister Haub says most growth will take place in countries with young populations and traditionally large families. He points to Nigeria and Japan as two nations that are moving in opposite directions in terms of population.


In Nigeria, almost half the people are under the age of fifteen. Few are over sixty-five. Nigerian women generally give birth about six times during their lives. By comparison, the average Japanese woman has one child. And today about twenty percent of Japanese are over the age of sixty-five.


Mister Haub expects the Japanese population to decrease by twenty percent. He estimates that the population of Nigeria will increase by more than one hundred twenty percent by the middle of the century.


This VOA Special English Development Report was written by Jill Moss. This is Gwen Outen.



n.苔,藓,地衣
  • Moss grows on a rock.苔藓生在石头上。
  • He was found asleep on a pillow of leaves and moss.有人看见他枕着树叶和苔藓睡着了。
adv.通常地,普遍地,当前
  • Currently it is not possible to reconcile this conflicting evidence.当前还未有可能去解释这一矛盾的例证。
  • Our contracts are currently under review.我们的合同正在复查。
n.提到,说到,暗示,查看,查阅
  • We spent days going through all related reference material.我们花了好多天功夫查阅所有有关的参考资料。
  • I like to have my reference books within my reach.我喜欢把参考书放到伸手可取的地方。
n.期望,预期,(根据概率统计求得)预期数额
  • Japanese people have a very high life expectancy.日本人的平均寿命非常长。
  • The atomosphere of tense expectancy sobered everyone.这种期望的紧张气氛使每个人变得严肃起来。
学英语单词
abalone pearl
abnormal flood level
anti-cotangent
apodeipnon
balance point detector
bereavement counselling
Bezymyannoye
blood splashed meat
cadential
cam loom
capital returned to stockholders in dividends
carbozite
chromospheric whirl
cobaltiferous wad
coffee drying barbecue
congenital absence of auditory ossicles
cylinder carrier hay loader
debt adjustment date
defense trade regulations
detergency comparator
diagnostication
disembarks
EDPS (electronic data processing system)
explosion valve
family Cunoniaceae
fehrs
filtration spring
fist bumps
free legal aid
fully-flooded dye machine
giving me a shout
Greip
hexalaure
hologamous
image scanner lenses
impulsive sound
interiorly
international electric unit
Kleine Paar
korbich
Laurocerasus dolichophylla
Leicester East Airport
luxuriancy
mdes
MENASPIDAE
minimum annuity payment
mobile tire inflation unit
module checking
morphophonemic
nitrifying organism
Nossebro
nuclear moisture and density dynamic meter
outline map for filling
Pedicularis lingelsheimiana
plane meter
political entities
Post machine
Pro forma financial statements
quad trie
Qualification period
quantity of illumination
raid farming marker
recovery unit journal
refined starch sugar
retention suture needle
ring inserting tester
russia braid
sarpanches
selective leaching
semiinfinite body
semilunar bodies
shair
shills
solderless wrap
speed of fall
spinning mill
state equivalence
stationary grizzly
steel rail
subspecialized
Tamarix leptostachya
tambagut
The Atlantic Line
thermonuclear evolution
threaded shank
thuidium glaucinoides
tom hankss
tonitrual
top gallant forecastle
unmounded
unsoot
untenableness
viscosity-density constant
vmx
vretical indicator
Walpia
watch me
wool keratin
worms-eye view
yyf
zonelevel