胚和种子的发育

[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(464) / 评论(0) 分类 历年考研英语阅读理解

There is no better school than adversity. Every defeat, every heartbreak, every loss, contains its own seed, its own lesson on how to improve my performance next time. Never again will I contribute to my downfall by refusing to face the truth and lea

发表于:2018-12-06 / 阅读(401) / 评论(0) 分类 傲慢与偏见.Pride.and.Prejudice

廖彩杏推荐了100本有声书,来训练孩子的听力与跟述,是比较适合刚开始接触英文的宝宝,她的观念是利用绘本让孩子学习英文,引起孩子对英语的兴趣,利用每本书的音频反复地聆听。 廖彩

发表于:2018-12-06 / 阅读(152) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

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(137) / 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(141) / 评论(0) 分类 Scientific American(十二)月

The magical mustard seed 神奇的芥籽 A woman's only son died. In her grief, she went to the holy man and asked, 一个女人的独生子死了。她非常伤心地找到神父问: What prayers, what magical incantations do you have to bring my so

发表于:2018-12-26 / 阅读(135) / 评论(0) 分类 找谁倚靠(慢速)

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(159) / 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(156) / 评论(0) 分类 2017年NPR美国国家公共电台9月

GUY RAZ, HOST: What are you doing in New York? EL SEED: Actually, I came to meet some people for, like, a future project that's going to happen in 2018. But it's too secret. I can't talk about it. RAZ: Oh, you - come on, little bit - just a... EL SEE

发表于:2019-01-16 / 阅读(175) / 评论(0) 分类 2017年NPR美国国家公共电台11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:2019-01-19 / 阅读(132) / 评论(0) 分类 2015CRI中国国际广播电台

EDUCATION REPORT - SEED School Aims to Help Students Grow With Skills for Life By Dana Demange Broadcast: Thursday, December 29, 2005 I'm Faith Lapidus with the VOA Special English Education Report. T

发表于:2019-01-26 / 阅读(155) / 评论(0) 分类 教育与新闻

He had often seen it before. When you're bigger, she had said, you can read it. Well, now he was big enough. 那书他以前常看见。你长大以后,她说,就可以读了。好了,现在他长大了。 He was proud. I'm afraid you won't fin

发表于:2019-01-29 / 阅读(88) / 评论(0) 分类 美丽新世界

What do a hummingbird, a moth, and a maple tree have in common? They all use a similar trick to fly. Okay, okay, a maple tree doesnt fly. But its seeds kind of do. Maples make those little whirlybird seeds you see spiraling down in droves each sprin

发表于:2019-01-30 / 阅读(281) / 评论(0) 分类 60秒科学

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(253) / 评论(0) 分类 2006年VOA标准英语(七月)

By Paul Sisco Washington 13 March 2008 The Global Seed Vault openednear the North Pole on 26 February, and an Internet project aimed at promoting biodiversity went on line. The so-called doomsday vault is in the remote Norwegian archipelago of Svalba

发表于:2019-02-02 / 阅读(168) / 评论(0) 分类 VOA标准英语2008年(三月)

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(291) / 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(128) / 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(151) / 评论(0) 分类 新西兰英语

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(125) / 评论(0) 分类 经济学人综合

文本: AVERY: Now look here, son.I got a problem and I reckon you could help me with it. TOMMY: I'm no builder. AVERY: No, I was thinking more of your demolition skills.Now this here, this is the development as planned and this,this is the proper

发表于:2019-02-27 / 阅读(152) / 评论(0) 分类 小龟乐游记英语短文
学英语单词
9a-Fluoro-21-methylprednisolone
acidating agent
airless spraying plant
anticapitalism
antireformer
apparent form of the sky
Arnol
At noon I had lunch with friends of mine
atomic excited state
auxiliary aiming point
blitz chess
bosh area
brubecks
cauterants
change place
choicely
Classical Syriac
Climb the greasy pole
clinically obese
coach potato
Cohn's test
copper brazing alloy
coupled phosphorylation
craniomandibular
critical phase discontinuity
cyclical product code
data cluster
declares
Deep Creek
demitting
directive force
drop lip hook
effective tube length
Elul
ethyl-alcohol
euhemerization
eurya nitida korthals
gas sand
gowl
hand brake chain guide
heeze
Hespere
kelvin thermodynamic scale of temperature
kiln hood
leisurewears
Ligularia melanothyrsa
linear Taylor distribution
marine power plant manoeuvrability
master tool
mataba
maxillary stylet
mean square error of coordinate
medical reference source
mercurial pyrometer
metacisms
mno2-zn system
motor cavity
myocardial visualization
NC-SC
omissions excepted
on a fast track
out-of-band discovery
outer port
oxoaldehydes
packing for discharge cover
penetrancies
peracchi
pernetti
pleurosoma
powah
Pramistar
primordia
Pritchett Seamount
psenes pellucidus
pube styles
puccinellias
pyknomorphic
quadruple-berthed cabin
Rapallo
Sannohe
screwshaft cone
self propelled tracked loader
sewage oxidation pond
shaft axis of rotor
shuffle out of
silk spreader
Sisuril
social benefits
standard concept
store goods
strict competitive
superfinish
tape drive controller functions
test box
thunderous
tinning stack
truks
underwater bulldozer
valve receiver
Viburnum lepidotulum
Voitia
zinc oxide bath