un. 构造演变
[网络] 构造演化

17.Evolution of sleep Sleep is very ancient. In the electroencephalographic sense we share it with all the primates and almost all the other mammals and birds: it may extend back as far as the reptiles. There is some evidence that the two types of s

发表于:2018-11-27 / 阅读(1130) / 评论(0) 分类 新概念优美背诵短文50篇

I learnt all about evolution when I was about ten years old. I remember it clearly. I thought it was amazing. My mind was full of images of strange creatures crawling out of a green, soupy lake. Fish that had somehow developed legs and the ability to

发表于:2018-12-04 / 阅读(516) / 评论(0) 分类 听一分钟英文-E

VOICE ONE: I'm Steve Ember. VOICE TWO: Charles Darwin And I'm Barbara Klein with EXPLORATIONS in VOA Special English. This month is the two hundredth anniversary of the birth of one of the most influential thinkers in science history. Charles Darwin

发表于:2018-12-07 / 阅读(590) / 评论(0) 分类 VOA慢速英语2009年(二)月

Sleep is very ancient. In the electroencephalographic sense we share it with all the primates and almost all the other mammals and birds: it may extend back as far as the reptiles. There is some evide

发表于:2018-12-15 / 阅读(730) / 评论(0) 分类 新东方背诵文选

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Creationists often publish lists of a few dozen scientists who doubt Darwin. So in 2003, the National Center for Science Education put together a list of 200 scientist

发表于:2018-12-24 / 阅读(537) / 评论(0) 分类 Scientific American(二)月

I learnt all about evolution when I was about ten years old. I remember it clearly. I thought it was amazing. My mind was full of images of strange creatures crawling out of a green, soupy lake. Fish that had somehow developed legs and the ability to

发表于:2018-12-26 / 阅读(468) / 评论(0) 分类 纯正英语一分钟

The earthquake that struck near Mexico City Tuesday came exactly 32 years after an 8.0 magnitude quake hit the area. The 1985 earthquake killed nearly 10,000 people. Mexican officials say more than 200 people are confirmed dead following Tuesdays qua

发表于:2019-01-03 / 阅读(689) / 评论(0) 分类 2017年VOA慢速英语(九)月

SCIENCE IN THE NEWS - Evolution and Intelligent Design By Jill Moss Broadcast: Tuesday, March 15, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Sarah Long. VOICE TWO

发表于:2019-01-04 / 阅读(547) / 评论(0) 分类 科技之光

Don Gonyea: After 17 days of skiing, skating, sliding and yes, even a little doping , the Winter Olympics end today. For NPR sports correspondent Tom Goldman, the Turin Games are the seventh Olympic he has covered. Looking back, he has this essay on

发表于:2019-01-04 / 阅读(646) / 评论(0) 分类 2006年NPR美国国家公共电台

We usually think of evolution as something that happens over eons, in remote places where people rarely venture. Not something that happens around the backyard birdfeeder in just a few decades. But a study in the journal Current Biology suggests that

发表于:2019-01-08 / 阅读(568) / 评论(0) 分类 Scientific American(十二)月

Explorations - Great Thinkers: Charles Darwin and Evolution STEVE EMBER: Welcome to Explorations, in VOA Special English. I'm Steve Ember. This week, Barbara Klein and I tell about one of the most influential thinkers in science history. Charles Darw

发表于:2019-01-12 / 阅读(551) / 评论(0) 分类 2011年VOA慢速英语(十一)月

Shaping Human Evolution at the Smithsonian 史密森尼美国博物馆塑造人类进化过程 Welcome to American Mosaic from VOA Learning English. Im June Simms. Today on the show, we visit a museum where art and science help tell the story of huma

发表于:2019-01-12 / 阅读(587) / 评论(0) 分类 2014年VOA慢速英语(四)月

ROBERT SIEGEL, HOST: Biologist Jonathan Losos and I have at least one thing in common - we were both blown away by the late paleontologist Stephen Jay Gould's 1989 book Wonderful Life. Gould saw evolution as being all about odd contingencies, acciden

发表于:2019-01-16 / 阅读(601) / 评论(0) 分类 2017年NPR美国国家公共电台9月

Scientists say the surface of the Earth is cracked like a giant eggshell. They call the pieces tectonic plates. As many as twenty of them cover the Earth. The plates float about slowly, sometimes crashing into each other, and sometimes moving away fr

发表于:2019-01-22 / 阅读(656) / 评论(0) 分类 英语时差8,16

Idiom: On the wagon 成功戒酒 Hit the book: Scale Descend Mariana trench Crescent Scar Peak Trough Tectonic Collide

发表于:2019-01-22 / 阅读(522) / 评论(0) 分类 趣味青春英语

Backyard Feeders Driving Bird Evolution A study in the journal Current Biology finds that backyard bird feeders in Britain are responsible for splitting central European blackcap warblers into two distinct populations that may be on their way to beco

发表于:2019-01-30 / 阅读(797) / 评论(0) 分类 60秒科学

Multi-media website explores human evolution Rosanne Skirble | Washington, DC 07 May 2010 'What's Hot in Human Origins' keeps you up-to-date on recent studies and research in the field. The human origins website at www.humanorgins.si.edu poses the ag

发表于:2019-02-02 / 阅读(505) / 评论(0) 分类 VOA标准英语2010年(五)月

Lord Mayor of the City of London: China's Stock Market "Hiccup" Part of Market Evolution In a press briefing with journalists on his planned visit to China next week, the Lord Mayor says it is a common episode in any emerging market to have overb

发表于:2019-02-13 / 阅读(541) / 评论(0) 分类 2015CRI中国国际广播电台

If you live up in the mountains, understanding the continually shifting landscape can mean survival. Mountains are continually shifting. Erosion wears mountains down, but active mountain ranges are also continuously rising. And heres the interesting

发表于:2019-02-24 / 阅读(500) / 评论(0) 分类 英语听力文摘 English Digest

Earth is alone among the rocky planets in having tectonics, and why this should be is a bit of a mystery. It is not simply a matter of size or densityVenus is nearly a twin of Earth in these respects and yet has no tectonic activity. It is thoughttho

发表于:2019-02-25 / 阅读(526) / 评论(0) 分类 万物简史
学英语单词
Abraka
abstrusenesses
accidental convergence
albn
alkaline milling fastness
andps
animals pack
Ascones
asseveration
au revoirs
blows you away
bulb socket with edison cap
bum rap
cachinnated
casso insurance
change off
check credit requisition
chinacrine
coal bump
collagenous spherulosis
continuous flash coking
copy taster
cross section analysis
crystal chronometer
diantimony
dipole-dipole interaction
Eddington luminosities
engine mission gage
erron
excition
flux capacitor
framing up
frescura
froth flotation
gene model
Gnaphalium polycaulon
go bail
Hanauma Bay
hazards generated by noise
help-seekers
Henry Morton Stanley
hyomandibulars
hypertrophy of connective tissue
Ilora
interrupter gear
length of engagement
loose sheet
Loss for Detention
Maytenus longlinensis
Michelfeld
monoperiodic
multi-level outlet shaft spillway
neomagma
neutrallty equation
nitroglycerine
odontonomy
oil-immersed water cooled transformer
oligofructose
open cycle reactor system
osteoprotegerins
Pars intermembranacea
paulin
pine-top
pleasureness
pseudodiaphragm
pseudophilosophers
pteropleura (pl.peteropleuron)
reflection coefficient of sound pressure
retypings
ring compounds
ring-back key
Sallgast
Sapratol
schenkman
scrutin uninominal voting system
serum sickness urticaria
shoestores
soapboxed
social networking website
soul-knell
stratum moleculare
sub-notebooks
synaeresis (syneresis)
tax exempt export
teit
tetronothiodin
thin flat plate
three-way dumping
thunderbay
tied to one's mother's apron strings
tightrope walker
trilinolenin
undeletes
upsitting
very high density cable interconnect
vintage show
want-away
water economy
wavetables
ydc
zimbi
zingiberis rhizoma recens