胚胎培养

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(152) / 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(144) / 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(331) / 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(65) / 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(79) / 评论(0) 分类 Scientific American(十二)月

Im really interested in the culture of other countries. I dont know why, but I always think other cultures are more interesting than my own culture. Every time I travel, I learn wonderful, strange, amazing and interesting things about other cultures.

发表于:2018-12-26 / 阅读(73) / 评论(0) 分类 纯正英语一分钟

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(145) / 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(112) / 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(74) / 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(88) / 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(83) / 评论(0) 分类 2017年NPR美国国家公共电台9月

茶是中华文明最宝贵的文化财富之一。历史上,茶是带有传奇色彩的帝王神农发现的。 Listen Read Learn Tea is one of the greatest cultural treasures of Chinese civilization. Tea was historically discovered by the legendary emperor, Shennong, who believed th

发表于:2019-01-21 / 阅读(91) / 评论(0) 分类 英语口语大赢家

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(151) / 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(137) / 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(231) / 评论(0) 分类 阅读空间

By Cache Seel Shalatin, Egypt 10 July 2007 Facing Drought and the loss of grazing land for their herds, many Bedouin of southeastern Egypt are giving up their traditional lifestyle. The Egyptian Government and aid organizations have stepped in to hel

发表于:2019-02-05 / 阅读(212) / 评论(0) 分类 2007年VOA标准英语(七月)

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(55) / 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(87) / 评论(0) 分类 新西兰英语

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(68) / 评论(0) 分类 有声英语文学名著

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(68) / 评论(0) 分类 经济学人综合
学英语单词
ALFC
ANRI
antialiasings
apotheosising
audiometre
average collection period of receivables
basic line of sight
brass space
Brent Blend
carcerals
casini
cawed
cercospora chrysanthemi-conronarii saw.
Chacance
chrome-kaolinite
cinnamomum tenuifolium nervosum
Cladothricheae
clinical radiator
culture-of-poverty
current margin
dehvery pump
detergencies
deviative
Different kettle of fish
dimethylol ethylene urea resin
diminishing rate
disoxygenation
eczematous polymorphous light eruption
edge point
egg-capsule
elect with
electric pig iron
empeiral
encoignures
energy absorption coefficient
equivalent gray gas
fanning loss
feto
fickle finger of fate
five lens aerial camera
flash ignition temperature
flight line
focused transducer
forceps pressure
fundamental system of neighborhoods
Glan-Thompson prism
granite pedestal
gyroautomorphisms
helm stock
hindering effect
indigo carmino
jaimy
jet scrubber
kgotla
kidfriendly
Kulikovo
Leoville
Little Cypress Creek
LOTTT
mangasinoro (shorea sp.)
marguisette
maximum limit
Meconopsis violacea
mirror symmetry
multiple-head machine
oreo
orexes
P-3981
pacassis
pester someone with for something
playmaker
point group lattice
polvoes
Prior-preferred stock
puckerbushes
pyromorphous
rammelsbergites
resin bead
responsibility audit
road clearance
Romanisations
schiefers
series bit-slices
silver ours
sithment
skeleton code
smoothness
splashboards
steam pipe support
stucowork
subscriber stage
superv.
thenner
timing reservoir
tourist point
tower officer
triangular distribution
V.Y.
vlai
voluntary withdrawal from school
warmouths
wuzzup