[医] 绒毛前胚

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(319) / 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(309) / 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(557) / 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(183) / 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(187) / 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(277) / 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(230) / 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(203) / 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(196) / 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(202) / 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(200) / 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(260) / 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(312) / 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(329) / 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(158) / 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(188) / 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(230) / 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(199) / 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(191) / 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(165) / 评论(0) 分类 经济学人综合
学英语单词
Abdominalia
ajds
Alpenachitina
analyzer polariscope
band stop
band-pass filter (bpf)
black books
boastingly
boost dose
Chagres River
cleper
close range firing
concentration fluctuation
cone-bearing tree
convective rains
court record
d-ore
data transmission-utilization ratio
dimethylnaphthalene
egregorsis
electron oscillation ion source
false color image
family Cercopidae
fiber-optic ring
fine rale
fluoroplastic film
frenhofer
G. B. Shaw
gang-sawing machine
gear engaging switch
gem-diphosphonates
give attention to
goes around with
grating polychromator
handle stolen goods
harness roll
hjeresen
illimitableness
impulse period
integrated of degree one
investigative interview
isoamyl aniline
jimson
jiu jitsu
lay sth in
lizardmen
lower income group
lurches
magnesiotaramite
main-steam outlet nozzle
make up the slate
manauto
mapping control survey
meiostemonous
michigan lilies
mixed-bed column
modification by irradiation
monthly churn
non-biological
non-typical
osteoporosis associated connective tissue naevus
panchromatic rendition
pectamycin
piston damping chamber
plaque-forming cell
polb
potassium content
power efficiency
predetermined variate
puntius semifasciolatus
quietus est
r.k.
refuge siding
respondent selection
ricans
roentgenoscopy
saturation nonlinearity
Senning operation
seychelles monetary units
similar airway
sinularia pavida
sorting comparison
sporozoid
subsidiarize
sulphocyan-
tactoreceptor
tbg(t4-binding globulin)
tetragonal enantiomorphy
torque reaction stand
tuberculinum purum
type-cast
Uitenhage
unbiassed
vanabins
VESC
vibrating concrete float
vibration of string
warning cross
wheel flat
wing fuselage
work-schedule
Zimmah