[胚] 胚胎内陷

There’s a news poll out tonight on another major controversy: human cloning. When asked whether scientists should be able to clone human, 85% said no, 11% said yes. Congress is working on legislatio

发表于:2018-11-28 / 阅读(292) / 评论(0) 分类 疯狂英语2002年

Modern Living The Seans' Caged House Sean (husband): When an architect designs a house for themselves and their family, they have to attempt to 1)accommodate those, needs of the family. That's that's

发表于:2018-11-28 / 阅读(280) / 评论(0) 分类 疯狂英语2004年

[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:03.81]1999 Passage4 [00:07.51]When a Scottish research team startled the world [00:10.54]by revealing 3 months ago [00:12.61]that it had cloned an adult sheep, [00:14.94]President Clinton move

发表于:2018-12-01 / 阅读(517) / 评论(0) 分类 历年考研英语阅读理解

Imagine being able to override Mother Nature and hand-pick the physical appearance and intellectual traits of your unborn child. Well, thanks to modern science, what may seem far-fetched now could be

发表于:2018-12-11 / 阅读(162) / 评论(0) 分类 万花筒2006年

Little girls are made of sugar and spice and, according to a study published in the journal Cell, a fierce determination to maintain their girlishness. Because it seems that a single gene keeps their ovaries from turning into testes. Scientists have

发表于:2018-12-24 / 阅读(159) / 评论(0) 分类 Scientific American(十二)月

Jackie: Welcome to BBC Learning English dot com and Insight Plus - a series first broadcast in 2001 that looks at the language of issues you hear about in the news. How far should science go to help the sick and the suffering? Today on Insight Plus,

发表于:2019-01-07 / 阅读(259) / 评论(0) 分类 英语讨论

Misconception. A stunning story especially for couples having trouble having kids. One Michigan couple learning that their frozen embryos were gone, implanted into another woman by mistake. They were understandably flooded by the news -- or floored b

发表于:2019-01-08 / 阅读(200) / 评论(0) 分类 CNN2010年(五)月

If the human genome is the book of life, then Crispr technology is its Microsoft Word. The cut-and-paste technique, invented only three years ago, can be used on fledgling genomes to snip out bits of DNA and, if required, insert new stretches. 如果说

发表于:2019-01-08 / 阅读(183) / 评论(0) 分类 英语新闻

RACHEL MARTIN, HOST: Scientists doing embryo research are facing some sensitive questions over a new generation of scientific experiments, questions like how long should scientists be allowed to keep human embryos alive in their labs to study them? A

发表于:2019-01-16 / 阅读(177) / 评论(0) 分类 2017年NPR美国国家公共电台3月

ARI SHAPIRO, HOST: For the first time, scientists have altered the DNA in human embryos to make a fundamental discovery about early human development. Scientists say this proves that modifying genes and human embryos can reveal powerful insights into

发表于:2019-01-16 / 阅读(177) / 评论(0) 分类 2017年NPR美国国家公共电台9月

Well, I must go, said the nurse. I've got my batch of children coming. 好了,我得走了,护士说,我的那帮孩子要来了, Besides,there's Number 3. She pointed up the ward. Might go off any minute now. 何况还有三号病床,她指了

发表于:2019-01-29 / 阅读(180) / 评论(0) 分类 美丽新世界

Now have you sinned since our last broadcast? The Catholic church is worried people aren't taking sins seriously enough. So the Vatican has decided to update its list of the seven deadly sins. But whereas the focus of the traditional sins--LUST, GREE

发表于:2019-01-30 / 阅读(243) / 评论(0) 分类 英伦广角

By Deborah Tate Washington 17 July 2006 The U.S. Senate Tuesday is expected to approve federal funding for expanded embryonic stem cell research, despite a veto threat from President Bush who opposes the idea on moral grounds. -------- On the eve of

发表于:2019-01-31 / 阅读(283) / 评论(0) 分类 2006年VOA标准英语(七月)

20 top predictions for life 100 years from now Last week we asked readers for their predictions of life in 100 years time. Inspired by ten 100-year predictions made by American civil engineer John Elfreth Watkins in 1900, many of you wrote in with yo

发表于:2019-02-05 / 阅读(308) / 评论(0) 分类 阅读空间

Reporter: A universal two-child policy is expected to be passed by the top legislature by the end of the week as it concludes its latest bimonthly session on Sunday. The new rules would come into effect on January 1. Zhai Zhenwu, Head of the China Po

发表于:2019-02-06 / 阅读(145) / 评论(0) 分类 英语新闻

During the weekend, 2 couples and their families invited the media newspapers, TV and radio to interview them about embryo donation. The first couple had two teenage boys and the second couple had a 3-month old baby girl. Couple 1s 16 year old son wa

发表于:2019-02-06 / 阅读(168) / 评论(0) 分类 新西兰英语

When I was growing up in Montana, I had two dreams. I wanted to be a paleontologist, a dinosaur paleontologist, and I wanted to have a pet dinosaur. And so that's what I've been striving for all of my life. I was very fortunate early in my career. I

发表于:2019-02-16 / 阅读(200) / 评论(0) 分类 英语语言学习

Brave New World by Aldous Huxley Chapter Eight OUTSIDE, in the dust and among the garbage (there were four dogs now), Bernard and John were walking slowly up and down. So hard for me to realize, Bernard was saying, to reconstruct. As though we were l

发表于:2019-02-16 / 阅读(175) / 评论(0) 分类 有声英语文学名著

Oocyte cryopreservation, or egg freezing, is a procedure where a woman's ovum are removed, frozen and placed in long-term storage. When the woman is ready to become pregnant, the eggs can be thawed, fertilized and transferred into her uterus. The tec

发表于:2019-02-18 / 阅读(168) / 评论(0) 分类 英语新闻

Leaders 社论 Gene editing 基因编辑 The baby crisperer 婴儿保险盒 A Chinese scientist claims to have edited the genomes of two babies 中国科学家声称已成功编辑两名婴儿的基因 Humanity's power to control the four-letter code

发表于:2019-02-25 / 阅读(147) / 评论(0) 分类 经济学人综合
学英语单词
a fellow national
aapamoor
adjustable range of backrest angle
airframe dynamics
aluminum strip
Angiovist282
aqueous penicillin
ARIS (automated reactor inspection system)
autoepizootic
avina
Bactrovet
bifilar secondary
bird's eye-weave
brought it on
certificate-based signature
Cheirostylis tortilacinia
city banker
D. M.
diedown
dogeship
Douneinae
enterokinesia,enterocinesia
error rate of a telegraph communication
ersts
exposure hazard
feed grinding
fluorite-lens
four-wood
guava bushes
h(a)ematogen
Hawk Springs
helmetshrike
hte
i wonder at you
identifying page
infant heat stroke syndrome
interchange service
jheel
job source image
juncus balticus willd.var. japonicus f.buch.
Khalīj-e Fārs va Daryā-ye 'Omān, Subprov.
kvitching
launch stand
Lenten Moon
lucius annaeus senecas
madtv
management priority code
Manoharpur
MCBMT
measures off
melaconite
methyl diphenyl
midnight wind
minute of arc
national pension
Neocodema
nitrosobacteria
non-wandering point
noradrenergic neuron
nozzle sleeve
oilseal
Oleocuivre
oscillator harmonic interference
overall timing method
Pearce-Smith converter
PERFW
preanalytical
procedure level transformation
receiving dryer
retrodorsolateral nucleus
revenue from own sources
rung up
sales margin variance
Sam Neua
Sam.
scupper plug
selective decoupling
serine deaminase
set your mind at ease
shamefastness
snuffleupagus
sparrowy
stannards
stenometer
summoners
synchro to digitat converter
Tavaresia
Tereblya
Tetrapora
tidal fever
torn-up
trailer-loading elevator
trap door
Troiane
trued
typal
unbows
uniform administration
wall primer
winter fern
zaptiah
zarzuela