胎儿期

This is Scientific American's 60-Second Science. I'm Steve Mirsky. This will just take a minute. Pregnant women shouldn't drink. It's become gospel, because of the danger of fetal alcohol spectrum disorder. Alcohol can disturb the normal development

发表于:2018-12-24 / 阅读(161) / 评论(0) 分类 Scientific American(三)月

[00:07.34]Last Tuesday was World Population Day. [00:12.98]The message this year was Saving Women's Livers. [00:18.91]The director of the United Nations Population Fund, [00:24.27]Nafis Sadik,released a statement in ovservance of the day. [00:30.59]D

发表于:2018-12-26 / 阅读(80) / 评论(0) 分类 美国英语听力80篇

[00:05.49]Why are some people left-handed? [00:09.09]Scientists have been trying to answer that question for many years. [00:14.32]Research has shown that ninety percent of people naturally use their right hands for most tasks. [00:22.94]But hundreds

发表于:2018-12-26 / 阅读(67) / 评论(0) 分类 美国英语听力80篇

Grammar Girl here. This week I have two topics for you: The number of spaces after a period at the end of a sentence, and whether you should use who or that to refer to people (and pets). Now here's our first listener question. His friends believe it

发表于:2019-01-02 / 阅读(121) / 评论(0) 分类 英语语法 Grammar Girl

AS IT IS 2016-07-01 Report: Women Prisoners Tortured in Mexico 墨西哥监狱虐待女囚犯 Five years ago, police stopped Veronica Razo on a street in Mexico City and took her to federal prison. She was beaten, tortured with electrical shocks and

发表于:2019-01-12 / 阅读(148) / 评论(0) 分类 2016年VOA慢速英语(七)月

Almost all animals with a spine yawn.Penguins do it as a mating ritual,snakes do it to realign their jaws after a meal and guinea pigs do it to display anger,So why exactly do humans yawn?And is yawning actually contagious? 几乎所有的有脊椎动物

发表于:2019-01-16 / 阅读(119) / 评论(0) 分类 趣味英语

From the CNN Center in Atlanta. I'm Nicole Lapin. Here's a look at what's happening NOW IN THE NEWS. We now have a name and a face but still no motive for the deadly shooting at Northern Illinois University. A law enforcement source identified the s

发表于:2019-01-26 / 阅读(162) / 评论(0) 分类 商业报道2008年(二)月

Indias sex ratio is getting worse. The trend can be reversed. 印度的性别比例扭曲越加严重,这个趋势能够逆转 THE news from Indias 2011 census is almost all heartening. Literacy is up; life expectancy is up;family size is stabilisi

发表于:2019-01-26 / 阅读(137) / 评论(0) 分类 经济学人综合

JUDY WOODRUFF: Just weeks ago, hardly anyone in the U.S. knew what the Zika virus was, much less worried about it. But the World Health Organization's warning today put the Americas, including the U.S., on new notice. And, suddenly, a mosquito-borne

发表于:2019-01-27 / 阅读(106) / 评论(0) 分类 PBS访谈健康系列

SCIENCE IN THE NEWS - Study Links Stress Early in Pregnancy to a Greater Risk of Losing BabyBy Broadcast: Tuesday, March 21, 2006 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English.

发表于:2019-01-30 / 阅读(116) / 评论(0) 分类 2006年慢速英语(三)月

Hi,everyone. I'm Asieh Namdar at the CNN.com newsroom in Atlanta. Here's a look at what's happening Now In The News. New information out of Jacksonville, North Carolina, Marine Cpl. Cesar Armando Laurean is now the prime suspect in the murder of lan

发表于:2019-02-02 / 阅读(130) / 评论(0) 分类 商业报道2008年(一)月

很多打算赴国外留学的同学现在已经在联系租房的事了,在国外租房的时候一定要签订正式的租约(lease)或住房合同(housing contract),这有时候也被称为租房协议(rental agreement)。 租房合同里大家要

发表于:2019-02-02 / 阅读(118) / 评论(0) 分类 实用英语

We all know we shouldn't eat dirt, but we do it anyway. Mostly not on purpose dirt gets into our bodies all day, every day, whether we want it to or not. It's understandably difficult to figure out exactly how much is getting in, but that might be be

发表于:2019-02-06 / 阅读(92) / 评论(0) 分类 阅读空间

BEIJING, Feb. 16 (Xinhua) -- The Ministry of Transport (MOT) said Thursday that about 2.85 billion passenger-trips by roads were made during the 40-day Spring Festival travel rush this year, up 9.6 percent from the corresponding period last year. A t

发表于:2019-02-07 / 阅读(239) / 评论(0) 分类 英语新闻

我们何时开始做梦

发表于:2019-02-09 / 阅读(111) / 评论(0) 分类 实用英语

雅思考试写作的12大万能理由和部分写作思路 1 方便 convenience 2 情感 feeling(or sensibility) 3 经验 experience 4 成就 achievement 5 效率 efficiency 6 健康 health 7 节俭 thrift(or save money) 8 安全 safety 9 性格培养

发表于:2019-02-13 / 阅读(135) / 评论(0) 分类 雅思英语

MELISSA BLOCK, HOST: El Savador's highest court has ruled that a pregnant woman, whose health is expected to deteriorate as her pregnancy continues, cannot undergo an abortion. The 22-year-old, who goes by the name Beatriz to protect her identity, ha

发表于:2019-02-16 / 阅读(127) / 评论(0) 分类 英语语言学习

Sex selection 性别选择 Cat got your tongue? 哑巴啦? Aug 6th 2011 | from the print edition Unnatural Selection: Choosing Boys Over Girls, and the Consequences of a World Full of Men. By Mara Hvistendahl. Public Affairs; 314 pages; $26.99 and

发表于:2019-02-17 / 阅读(88) / 评论(0) 分类 经济学人综合

本期内容: The World Health Organisation warned that Zika, a mosquito-borne virus linked to brain deformation in human fetuses, is likely to spread to every country in the Americas except Canada and Chile. Brazil has reported 3,893 cases of micr

发表于:2019-02-20 / 阅读(113) / 评论(0) 分类 夏说英语新闻晨读

People who habitually live at altitude have often spent thousands of years developing disproportionately large chests and lungs, increasing their density of oxygen-bearing red blood cells by almost a third, though there are limits to how much thicken

发表于:2019-02-25 / 阅读(96) / 评论(0) 分类 万物简史
学英语单词
'Itāb, Ra's
anteceding
arteriae suprarenalis
artificial stone roll
axhandle
bereavement benefit
Bergslagen
billing transaction
bio-aging
bird-huntings
bragga
bright-finished steel
by road carrier
CEMF
chocolate-coloured
chord-length
clearing out
cloven board
coal sample reduction
complete sum
compressed ignition
continous
crisislink
d band
dc-ac transfer standard
de bruijn notation
depland
dicarboxylate
digital-signal
dotanddash
dragonesses
effective profile drag
elevated-tank
encapsulates
foramen Key-Retzius
galanthidine
glazed ceramics
goldstripe darter
gross earning depreciation method
hipil
Illinois River
international conciliation
intra-ocular
Ipojuca, R.
iris contraction reflex
iron metavanadate
Kaempferia elegans
lambdamycin
layds
levigators
limited succession
link resource
Long Akah
methyltestosterones
microviscosity
middle center
mine shaft
N-glycanase
nailrod
neighbo(u)ring entry
normal-plane
nosehole
o-dark-thirty
onoclea sensibilis l. var. interrupta maxim.
oppose separation
Oracle Fusion
ostrich-plume
peep of the morning
photocount distribution
plate cooler
post a letter
proposely
quick flasking light
radio-dispatching system
receive-only monitor
reincurring
result token
ribbon sendust head
right aileron and trim tab
riverwoman
Rt. Revd
samia wangi
situated evaluation
soaking solution
society-based
StarLAN
surface characteristics
teleangiectatic myxoma
Tetrameles nudiflora
tillowing
Tobol'sk
tritonous
tropic low water
Tunis, Gouvernorat de
typhoid septicemia
ulster
underspore
variation of tactics
Veronica yunnanensis
warmed-over
window
yes please