族群生长动态

Lesson 9 Is It a Good Idea to Control Population Growth in the World? Text What Overpopulation Feels Like We moved slowly through the city in a taxi and entered a crowded slum district. The temperatur

发表于:2018-11-27 / 阅读(326) / 评论(0) 分类 高级口语教程

The U.S. population is increasing at nearly one percent a year, making the United States the world's fastest growing industrial nation. 美国人口正以每年将近1%的速度增长,这使美国成为世界人口增长最快的工业化国家。

发表于:2018-12-02 / 阅读(199) / 评论(0) 分类 VOA双语新闻 Bilingual News

EXPLORATIONS -January 30, 2002: Population and the Environment By Cynthia Kirk VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Tod

发表于:2018-12-07 / 阅读(200) / 评论(0) 分类 Explorations

Women Bear Brunt of Population Growth The global population is expected to rise to nine billion by 2050. Most of that growth will be in developing countries. However, many are asking whether such growth is sustainable, considering the amount of resou

发表于:2018-12-16 / 阅读(154) / 评论(0) 分类 VOA标准英语2013年(六月)

Population Growth It is well-known that there has been a drastic increase in world population. But it is probably less well-known that the extinction rate of wildlife species is experiencing a parallel trend. Take the United States for instance. In 1

发表于:2018-12-18 / 阅读(229) / 评论(0) 分类 英语专业四级听力50篇

DEVELOPMENT REPORT – December 16, 2002: UN Population Study By Jill Moss Broadcast: December 16, 2002 This is the VOA Special English Development Report. The United Nations Population Fund has relea

发表于:2019-01-02 / 阅读(172) / 评论(0) 分类 农业与发展

By Jerilyn Watson Broadcast: September 11, 2003 This is Steve Ember with the VOA Special English Education Report. About one-in-four people age three and older in the United States is a student. The g

发表于:2019-01-02 / 阅读(169) / 评论(0) 分类 VOA2003(下)-教育与新闻

By Michael Bowman Washington 07 March 2006 view Global Population report By 2050, world population is projected to reach nine billion people. That would constitute a 38 percent jump from today's popul

发表于:2019-01-06 / 阅读(267) / 评论(0) 分类 2006年VOA标准英语(三月)

Theres been an unexpected development in our understanding of drug resistance in bacteria. The accepted scenario was a simple case of evolutionary selection. In a bacterial population exposed to a killer drug, a few lucky individuals might have a gen

发表于:2019-01-08 / 阅读(250) / 评论(0) 分类 Scientific American(九)月

The same mathematical models used to study the hunting range of lions have many other applicationsthey describe the flight patterns of honeybees. And now researchers say these math models can help explain the stability of gang territories and pattern

发表于:2019-01-08 / 阅读(222) / 评论(0) 分类 Scientific American(七)月

By Lisa McAdams Moscow 08 March 2006 No country faces as severe a population decline as Russia. Disease, accidental death, and a decline in healthy newborns are to blame. In fact, deaths in Russia out

发表于:2019-01-08 / 阅读(229) / 评论(0) 分类 2006年VOA标准英语(三月)

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

发表于:2019-01-13 / 阅读(273) / 评论(0) 分类 2006年VOA标准英语(八月)

There is a consensus among the delegates and world leaders attending the climate change conference in Copenhagen on the need to cut greenhouse gas emissions and shift to cleaner/more efficient energy. But a research center in Britain is espousing a d

发表于:2019-01-13 / 阅读(160) / 评论(0) 分类 VOA标准英语2009年(十二月)

The so-called one-child policy was brought into law in the late 1970's as a way to limit population growth, given that the economy at the time was just starting to open up to the outside world, and the domestic resources, particularly in urban areas,

发表于:2019-01-19 / 阅读(200) / 评论(0) 分类 2015CRI中国国际广播电台

2004 marks the 10th anniversary of the groundbreaking International Conference on Population and Development (ICPD) in Cairo, Egypt, in 1994. Ten years ago, on the eve of World Population Day, a new campaign was launched to raise awareness of how int

发表于:2019-02-03 / 阅读(200) / 评论(0) 分类 阅读空间

The so-called one-child policy was brought into law in the late 1970's as a way to limit population growth, given that the economy at the time was just starting to open up to the outside world, and the domestic resources, particularly in urban areas,

发表于:2019-02-06 / 阅读(142) / 评论(0) 分类 英语新闻

BEIJING, Mar. 18 (Xinhuanet) -- Urbanization will be a major feature of China's economic growth and continue to gain momentum, Liu He, Party chief of the Development Research Center of the State Council, said on Saturday. At the China Development For

发表于:2019-02-06 / 阅读(184) / 评论(0) 分类 英语新闻

Latest figures show, the number of people in their working-age decreased by over 3 million in 2012, accounting for some 69 percent of China's total population. Ma Jiantang, director of State Statistical Bureau, warns this is a serious issue. It is th

发表于:2019-02-21 / 阅读(155) / 评论(0) 分类 英闻天下

Premier Li Keqiang says China will endeavor to maintain medium-high growth over the long run, and pay attention to the quality and benefits of development. We will follow the vision of innovative coordinated green open and shared development. Develop

发表于:2019-03-04 / 阅读(243) / 评论(0) 分类 2016CRI中国国际广播电台

Rapid Evolution and Population Dynamics 种群(population)指在一定时间内占据一定空间的同种生物的所有个体。种群中的个体并不是机械地集合在一起,而是彼此可以交配,并通过繁殖将各自的基因传给

发表于:2019-03-09 / 阅读(340) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
aeronausiphobia
Android Honeycomb
anti-caking agent
ANTIPAR
ash shaqiq
banga r.
black durain
box cloth
cahaba r.
cases board bulged
changmuicus
check valve body
civil prisoner
colicin typing
colour adaption
constant area flowmeter
contract cost
control horn
cross-cut saw
crum
digital-to-analog multipliers
doctor's test
dragonish
Eclectic Paradigm
edelforsite
edible oil cleaner
EMBIIDAE
etappen treatment
ethinamide
excessive interest rate
fair copy
ferrospinel
fitting-shop
four-body collision
general purpose data base
groens
Habry
hartenstein
henkelplush
high-speed response
Hillsborough
hoist cylinder packing
hydroclastic
hypnea spinella
IDaaS
illegal procedure fault
immediate cash
impressionary
internal fittings
isoprenes
Kabwum
Kāmthi
Laudolissin
lead-caped nail
macroscopic quantization
melampsora ricini
mfgb
mine drifting device
monetize,monetised
multilicence
natural binary-coded hexadecimal
non-pashtun
nonconcomitancy
nuclear energy source
overdraft on outport banks
Peierls stress
Periploca floribunda
phosphorus dibromotrifluoride
portanova
powder funnel
preadhesive
precipitinophoric
prediction error filter
proclitically
profile diagram
prosodical
pseudoarthroses
rainer maria rilkes
rapid testing procedure
Redelivery of Salved Property
sand precoating
scalable linear tape
seaweedy
slow-scan art
speed of motor
square pitch arrangement
squillgeed
stickey
sui-mate
talk through ones hat
tark bikes
telemeasuring equipment
ten-days
Theriodide-131
tin-type
Tinos
user terminal
virtual target
vote in negative
water under the bridge
wellful
wind-powered