冷冻胚胎(可供植入妇女子宫作生育用)

[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(386) / 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(105) / 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(117) / 评论(0) 分类 Scientific American(十二)月

Stroll through the frozen foods section of the supermarket and youll find frozen corn, peas, and beans. A Moment of Science wonders, why isnt there any frozen lettuce? 你在闲逛超市的冷冻食品区的时候,会看到有冷冻玉米、冷冻豌

发表于:2018-12-28 / 阅读(114) / 评论(0) 分类 初学者听力文摘精选

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(191) / 评论(0) 分类 英语讨论

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(137) / 评论(0) 分类 2017年NPR美国国家公共电台3月

MARY LOUISE KELLY, HOST: Frozen food is having a moment. After years in a slump, sales of frozen and prepared foods are on the rise. They are often cheaper than fresh and can be more convenient. As NPR's Allison Aubrey reports, another upside of froz

发表于:2019-01-16 / 阅读(124) / 评论(0) 分类 2018年NPR美国国家公共电台5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(129) / 评论(0) 分类 2017年NPR美国国家公共电台9月

Hot Enough For You? Cool Off With A Brief History Of Frozen Treats AUDIE CORNISH, HOST: It's really, really hot today. Here in D.C., it's 88. In Phoenix, it's 109, and I'm betting it's pretty hot where you are, too. So we're going to take a few minut

发表于:2019-01-17 / 阅读(114) / 评论(0) 分类 2016年NPR美国国家公共电台8月

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(218) / 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(271) / 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(106) / 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(130) / 评论(0) 分类 新西兰英语

If we could live in this moment And just hold it Keep my head on your chest I'll never leave this bed The flowers will be blooming The leaves will be turning And snow will be falling While we're making love And the sun will be shining The flowers sti

发表于:2019-02-12 / 阅读(132) / 评论(0) 分类 节奏布鲁斯

DAVID GREENE, HOST: Call this the freezing out of frozen food - you know, TV dinners, which were a novelty when they first showed up in national supermarkets back in the 1950s. (SOUNDBITE OF AD) UNIDENTIFIED VOICE ACTOR: It's the first and only three

发表于:2019-02-13 / 阅读(133) / 评论(0) 分类 2018年NPR美国国家公共电台5月

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(116) / 评论(0) 分类 有声英语文学名著

Demi Lovato 为迪士尼动画片《Frozen》(《冰雪大冒险》)献唱的主题曲《Let It Go》!Demi 充满力量的呐喊配上电影中的华丽片段实在是太棒了。这首歌当插曲,电影必定赞啊,Demi 唱功真好! 歌词:

发表于:2019-02-17 / 阅读(123) / 评论(0) 分类 流行英文歌曲

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(116) / 评论(0) 分类 英语新闻

A few weeks after my first wife, Georgia, was called to heaven, I was cooking dinner for my son and myself. For a vegetable, I decided on frozen peas. As I was cutting open the bag, it slipped from my hands and crashed to the floor. The peas, like ma

发表于:2019-02-18 / 阅读(163) / 评论(0) 分类 阅读空间

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(108) / 评论(0) 分类 经济学人综合
学英语单词
a hostages to time
acaprazine
advertising restrictions
all optical computer
Alleghanies
angelologic
aramuss
at a speed of
auramine-rhodamine fluorescent staining
Azaouagh, V.de l'(Azaouak, V.de l')
basolateral membrane
be different
bowdlerizations
bring ... around
casting alloy iron
cathrometer
chamfer point diameter
chicken gizzard
cmdr.
colo(u)r retention agent
comitas kirai
composite cage
cost-share
course and speed made good over the ground
critical number teeth for no undercutting
Duilius
Dusetos
eight-end satin
eiselt
encastic
fault shift
gastric pattern
genus actiniopteriss
glass flake
goel
goodness of fit measures
high pressure wind tunnel
himantura gerrardi
horizontal draw-out metalclad switch gear
idiomatic phrases
impulse wind tunnel
in the palm of one's hand
insist on doing something
interdigital pause
intestinal groove
iwas
Lagrange point
left-over area
leucite-basanite
lid-fold
logic of class
low order burst
Micarta
microprogrammability
minimum tree problem
monohydride catalyst
N. normal
non-aggressions
non-paid
Onufrowiczs nucleus
order to pay admitted debt
outer lips
over-exerted
painting work
palptrochanteral organ
pavisand
Payerbach
petur
pfeffer
pollution-free energy
positive contrast
RAMIS (rapid access management information system)
ray projector
right against trespass to the land
right factor
run at full throttle
Sacambunge
self-aligning torque
semihexagonal slot
showerest
simulation verification method
slice ice machine
snail park
solar-cell satellite
spring feed
stable law
storm-zone
stridences
student responsibility
sub-sieve powder
teleosaurus
The tide turns.
threats
time delay push-button
united kindom and allies clause
ureterography
wastes of effort
Yakut
Yel'ninskiy Rayon
zoophobic
zyzocin