基因随机固定

Alice: Hello, I'm AliceStephen: And I'm Stephen. Alice: And this is 6 Minute English! This week were talking about sleepwalking. Have you ever walked in your sleep, Stephen? Stephen: I dont think so, but Ive been known to tell stories in my sleep. Al

发表于:2018-11-29 / 阅读(197) / 评论(0) 分类 六分钟英语

Broadcast: Jan 21, 2003 U.S. researchers have discovered another breast cancer gene that may provide a new point of attack against the disease. The 1) molecule is common to many types of breast cancer

发表于:2018-12-08 / 阅读(143) / 评论(0) 分类 VOA2003(上)-科技先知

By Nancy Steinbach Broadcast: October 1, 2003 This is Faith Lapidus with the VOA Special English Health Report. Scientists in Iceland say they have identified the first gene linked to common forms of

发表于:2018-12-15 / 阅读(142) / 评论(0) 分类 VOA2003(下)-环境与健康

Evolving Toward Cancer Is it possible that humans evolved to get cancer? Thats what scientists at Ben Gurion University in Israel claim in a study. They found that the same genetic mutations involved in the evolution of modern humans also gave rise t

发表于:2018-12-27 / 阅读(71) / 评论(0) 分类 英语时差8,16

I know that every cell in my body has a copy of my DNA packed into its nucleus. And I also know that if I could somehow unravel the DNA from a single cell, it would be about six feet long. So my question is, is DNA jammed into the nucleus in a sort o

发表于:2018-12-27 / 阅读(82) / 评论(0) 分类 英语时差8,16

About six or seven million years ago chimpanzees and humans evolved from a common primate ancestor. Chimps went on to become the relatively small-brained, forest dwelling creatures we know and love. Humans went on to evolve large brains, spread throu

发表于:2018-12-28 / 阅读(83) / 评论(0) 分类 初学者听力文摘精选

Random1) Thoughts-Party Last night,pressured by well-intentioned friends,for the first time in months,I came out of writers seclusion and attended a cocktail party which is another word for a social gathering.So there I was,trapped in a crowded roo

发表于:2019-01-01 / 阅读(215) / 评论(0) 分类 英语沙龙

By Robert Raffaele Washington 29 April 2008 For the first time, scientists have used gene therapy to dramatically improve sight in people with a rare, inherited form ofblindness. Researchers in Philadelphia and London are calling the results a milest

发表于:2019-01-03 / 阅读(165) / 评论(0) 分类 VOA常速英语2008年(四月)

Jennifer: Hello and a very warm and friendly welcome to the first 6 Minute English of 2013. My name is Jennifer and with me in the studio for today's programme is Callum. Happy New Year! Callum: Hi Jen - happy New Year! Jennifer: Have you made any Ne

发表于:2019-01-07 / 阅读(238) / 评论(0) 分类 六分钟英语

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Ever been woken up by the sound of the refrigerator compressor kicking on? Well, such clumsy heat exchange units featuring long metal coils may be on their way out. Becaus

发表于:2019-01-08 / 阅读(146) / 评论(0) 分类 Scientific American(八)月

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Ants are known for working together, operating as a unit for the good of the colony. But not so fast, say researchers from the Universities of Leeds an

发表于:2019-01-08 / 阅读(184) / 评论(0) 分类 Scientific American(三)月

Scientists Developing Salt-Tolerant Rice Scientists are developing a salt-resistant variety of rice. The move was prompted, in part, by last year's Japan tsunami, which flooded some 20,000 hectares of rice paddies. The rice varieties Japanese farmers

发表于:2019-01-13 / 阅读(123) / 评论(0) 分类 VOA标准英语2012年(一月)

Bacteria Thrive on Ocean Plastic Debris It takes about six weeks for a plastic bag or bottle to ride the surface currents from the U.S. East Coast to the Sargasso Sea, in the center of the North Atlantic. The area is a gyre, essentially a big whirlpo

发表于:2019-01-14 / 阅读(129) / 评论(0) 分类 VOA标准英语2013年(七月)

KELLY MCEVERS, HOST: There are a lot of reasons why people get cancer. Sometimes it's exposure to something toxic like smoke. Sometimes it's just bad genes. New research finds most of the genetic mutations that lead to cancer crop up naturally, and t

发表于:2019-01-16 / 阅读(104) / 评论(0) 分类 2017年NPR美国国家公共电台3月

Could you find out the premium rate for porcelain? 您能查一下瓷器的保险费吗? OK, just a second. 可以,请稍等。 No problem. 没问题。 Can you tell me if particular average insurance includes compensation of goods damage? 请问单

发表于:2019-01-23 / 阅读(121) / 评论(0) 分类 外贸英语一点通

About six or seven million years ago chimpanzees and humans evolved from a common primate ancestor. Chimps went on to become the relatively small-brained, forest dwelling creatures we know and love. Humans went on to evolve large brains, spread throu

发表于:2019-01-26 / 阅读(85) / 评论(0) 分类 英语听力文摘 English Digest

Bacteria Thrive on Ocean Plastic Debris 海洋中的塑料碎片上滋养大量细菌 Plastic pollution in the ocean is harboring colonies of bacteria that could be harmful, not only to marine animals, but also to humans. 海洋中的塑料污染滋生

发表于:2019-02-01 / 阅读(90) / 评论(0) 分类 VOA常速英语2013年(九月)

今天我们要学的词是random。 Random, 是随机、任意的意思。The firefighters have to undergo a random drug test once a year, 消防队员每年要接受一次是否服用毒品的抽查。The boxer refused to submit random blood tests

发表于:2019-02-03 / 阅读(132) / 评论(0) 分类 英语每日一词

29 Ways to Carry Out Random Acts of Kindness Every Day The time has come when we cannot just rely on others to make the world a better place each one of us has to do our bit. It is therefore time for people to be more and more aware about their Perso

发表于:2019-02-07 / 阅读(140) / 评论(0) 分类 阅读空间

Coming in unannounced, drag my nails on the tile I just follow your scent, you can just follow my smile All of your flaws are aligned with this mood of mine Cutting me to the bone, nothing left to leave behind You ought to keep me concealed just like

发表于:2019-02-18 / 阅读(129) / 评论(0) 分类 英文摇滚歌曲
学英语单词
-fissure
5-Oxoprolyl-Peptidase
abnegations
acetylpyridine
Alopiidae
ammonium perborate
aortarctia
arithmetical technique
ascribal
autocritical
available form
average-quality
background jot
Balkassar
battery-acids
be considerably subnormal
bemazava
bionosis
carrier gas diffusivity
catch your death
cavum pulpae
coarse tremor
combat drone
conical seat nozzle
corrosion accelerator
crowded round
crown piece
cyanotrophic
data take off
deletion mutagenesis
detectivity (of a detector)
dimera
duplex pressure gauge
elastic modulus in flexure
elastic temper
electric molding machine
electro-magnetic unit
else
endometrial implants
erasement
external conical refraction
garrotxa
generification
genus Coragyps
giampietro
glimmering
Gomphotherium
half polluted
hencote
hiran
homoosis
hydromyrinx
internal gear broach
karadzics
lyrater
mancarts
megalopenis
Mohr cubic centimetre
moneyspinning
murgang
nasal field
nieceship
nonmotion
oinochoe
order Campanulales
orgillous
overhead inversion
overtemperature trip device
Papaya carica
permutation lock
Phyllostachys elegans
polonium-210
posteriormost
posthumanism
preparation of base metal for welding
pyrazin
Qurayyāt, Juzur
rail welding set
range height indicator
respiration calorimeter
Sabanilla
scaptodrosophila brunnea
schlieker
shelf bra
short-form
single vertical block
sireland
social cost of congestion
subaspect
Syryane
tetraplont
than ever
the tower of ivory
thermo-siphon
tonnage exemption
unretires
unswept
vertical merge
vitalogy
web-fed rotary letterpress
wide-sense stationary
yaw-weed