遗传群体

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(175) / 评论(0) 分类 高级口语教程

Boadcast: February 18, 2003 By Mario Ritter This is the VOA Special English Agriculture Report. Food in the United States can include genetically engineered crops. No genetically engineered animals, h

发表于:2018-12-07 / 阅读(72) / 评论(0) 分类 VOA2003(上)-科技导航

Broadcast: Jan 28, 2003 By Mario Ritter This is the VOA Special English Agriculture Report. A number of companies are expected to seek approval from the United States Food and Drug Administration to p

发表于:2018-12-07 / 阅读(121) / 评论(0) 分类 VOA2003(上)-科技导航

Alice: Hello! Im Alice and this is 6 Minute English. Im joined today by Abdu. Hi Abdu. Abdu: Hi Alice. Alice: Today were talking about ageing populations, pensions and retirement. Im going to start by asking you Abdu what age do you expect to retire?

发表于:2018-12-11 / 阅读(191) / 评论(0) 分类 六分钟英语

新编英语教程第五册unit05_2_aging_population

发表于:2018-12-11 / 阅读(59) / 评论(0) 分类 新编大学英语阅读部分

[00:00.00]MODULE 11 Population [00:02.09]模块十一 人口 [00:04.17]Unit 1It's the biggest cityin China. [00:06.23]第一单元它是中国最大的城市 [00:08.29]Listening and vocabulary2 Listen and choose thebest answer. [00:34.03]听力和词汇

发表于:2018-12-13 / 阅读(96) / 评论(0) 分类 新标准初中英语第五册

[00:01.55]People need basic necessities [00:04.15]such as food,clothes and houses. [00:08.52]This means that more of our natural resources [00:11.87]like oil and coal are used [00:14.98]up to produce these things. [00:17.55]Also, more of our environm

发表于:2018-12-29 / 阅读(134) / 评论(0) 分类 外研社新标准初中英语九年级

[00:01.84]3 Listen and complete. [00:06.70]What have the children done for their project [00:10.30]on population? [00:11.96]Listen and complete their sentences. [00:16.14] [01:04.64]4 Listen and complete. [01:08.78]Listen and fill in the missing info

发表于:2018-12-29 / 阅读(131) / 评论(0) 分类 外研社新标准初中英语九年级

DEVELOPMENT REPORT - World Population by 2050 By Jill Moss Broadcast: Monday, August 30, 2004 This is Gwen Outen with the VOA Special English Development Report. New research shows that Earth will hav

发表于:2019-01-06 / 阅读(73) / 评论(0) 分类 农业与发展

Alice: Hello, I'm AliceFinn: And I'm Finn.Alice: And this is 6 Minute English! This week were talking about populationgrowth and the effects it might have on the world. At the moment itsestimated that there are about 7 billion people on the planet. F

发表于:2019-01-07 / 阅读(112) / 评论(0) 分类 六分钟英语

China's one-child policy combined with the preference for sons has skewed the population toward males. New research showing a strong correlation between that sex imbalance and savings rates offers some unexpected insights for financial services firms

发表于:2019-01-11 / 阅读(69) / 评论(0) 分类 阅读空间

The worlds population is getting bigger and bigger. Theres a population explosion in some countries. Im not sure if this is good or bad. The Earth can only support a limited number of people. One day, the worlds population will be too big to feed eve

发表于:2019-01-21 / 阅读(160) / 评论(0) 分类 纯正英语一分钟

The worlds population is getting bigger and bigger. Theres a population explosion in some countries. Im not sure if this is good or bad. The Earth can only support a limited number of people. One day, the worlds population will be too big to feed eve

发表于:2019-01-24 / 阅读(69) / 评论(0) 分类 听一分钟英文-P

By Robert Raffaele Washington 10 July 2007 This week marks the United Nations' annual observance of World Population Day (Wednesday July 11th) -- focusing attention on issues surrounding population growth worldwide. The annual event comes on the heel

发表于:2019-02-02 / 阅读(89) / 评论(0) 分类 2007年VOA标准英语(七月)

SHIJIAZHUANG, July 1(Xinhua) -- China on Sunday launched a campaign aiming to provide pension insurance to all rural residents and unemployed citizens in order to help the country cope with its aging population. We must ensure that the new pension in

发表于:2019-02-02 / 阅读(70) / 评论(0) 分类 英语新闻

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(99) / 评论(0) 分类 阅读空间

LOS ANGELES, April 27 (Xinhua) -- Air pollution poses a threat to the health of about 154 million Americans -- or more than half of the U.S. population, the American Lung Association (ALA) said on Wednesday. The air is so polluted in some areas that

发表于:2019-02-06 / 阅读(64) / 评论(0) 分类 英语新闻

据新华社报道,十二五(2011-2015)计划期末,我国人口总量将达到 13.9亿左右,城镇人口将首次超过农村人口。60岁及以上老年人口在十二五期间将年均净增800万,并在2015年突破2亿。上世纪8

发表于:2019-02-06 / 阅读(111) / 评论(0) 分类 实用英语

By Jim Teeple Jerusalem 11 February 2008 For the first time in a decade there is a new accurate census of Palestinians living in the West Bank, the Gaza Strip and East Jerusalem. VOA's Jim Teeple has details from our Jerusalem Bureau. The new census

发表于:2019-02-06 / 阅读(62) / 评论(0) 分类 VOA常速英语2008年(二月)

Statistics New Zealand collects population numbers every year from 1st October to the end of September. The latest figures show that New Zealands population on September 30th was 4,414,400. This is equal to 0.06% of the worlds population. We have 33,

发表于:2019-02-17 / 阅读(86) / 评论(0) 分类 新西兰英语
学英语单词
aboriginally
accident location
algogen
Andrézieux-Bouthéon
APQP
arformoterol
audio-amplifier
automatic merchandising
barrionuevoes
Bertiella satyri
blacked up
blow it out one's ear
burseed
cavity photon flux
cherry picks
chlordiphenyl
circumaural earphone
Coleus esquirolii
combined echo-ranging echo-sounding
commodities exchanges
compensatory financial flow
contact element of order p
continuous tinning
Cotrim
cycle logarithmic
delivery valve
diameter of a linear complex
discriminating price
drop scene
e-access
ecoregion
ejidal
empowre
engineering graphics
enzi
esconduy
fabric-axes
feeds off
finanziaria
hexaedron
Hollofil
homeothermic animal
hoodla
hysteron proterons
key industry investment fund
Killimor
law of independent propagation of light
leny
lithuanianism
lower envelope principle
lower pole
mass sports
measurement of length
mengingitides
mesocranial fossae
MF/SS
millier
mineral tars
murc
nitric oxide myoglobin
nonlinear magnetooptics
oblique bandage
open problems
orians
oriental sore
os temporales
ousing
overflow printing
paracone
pentacrinin
Peracarpa
personal firewall
Phil. I.
phytopathologic
piston pin hole cap
polyvinyl chloride panel
queen's rook
repolcation enzyme
Ross Island
runaway effect
scanning transmission electron microscope
scissures
shin-pad
showed over
sliver protein
smear metal
sonnetry
spherical galaxy
spiral duct
stot
stratec
stsospsiscs-s
teletering system
the livery of woe
too besides
tough-chic
turlough
vehicle hydrodynamics
Vysokiy Yar
wiegert
workshop-baseds
zoster oticus