技术演变

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(844) / 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(226) / 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(284) / 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(325) / 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(236) / 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(199) / 评论(0) 分类 纯正英语一分钟

Speaking About the Future Robert: These designs are really futuristic- looking. Mara: Im trying to be forward-thinking and imagine what the world will be like in 50 to 100 years. Robert: You think that the world will be filled with space-age gadgets

发表于:2018-12-27 / 阅读(287) / 评论(0) 分类 2015年ESL之日常生活

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(228) / 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(325) / 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(253) / 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(234) / 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(228) / 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(281) / 评论(0) 分类 2017年NPR美国国家公共电台9月

GUY RAZ, HOST: It's the TED Radio Hour from NPR. I'm Guy Raz. And on the show today, ideas about the things we do in the present that could have troubling consequences in the future. But that doesn't mean we shouldn't look forward to the future. I me

发表于:2019-01-16 / 阅读(401) / 评论(0) 分类 2017年NPR美国国家公共电台9月

Decades After An Iconic Protest, Tommie Smith Has Something Else On His Min play pause stop mute unmute max volume 00:0004:48repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update

发表于:2019-01-16 / 阅读(239) / 评论(0) 分类 2016年NPR美国国家公共电台9月

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(451) / 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(248) / 评论(0) 分类 VOA标准英语2010年(五)月

One day a 6 year old girl was sitting in the classroom. The teacher was going to explain evolution to the children. The teacher asked a little boy: Tommy do you see the tree outside? Tommy: Yes. Teacher: Tommy, do you see the grass outside? Tommy: Ye

发表于:2019-02-08 / 阅读(185) / 评论(0) 分类 趣味英语

U.S. National Research Council calls for more exploration Rosanne Skirble | Washington, DC 08 April 2010 Photo: Smithsonian National Museum of Natural History Rick Potts has led excavations at early human sites in the East African Rift Valley, and cu

发表于:2019-02-12 / 阅读(233) / 评论(0) 分类 VOA标准英语2010年(四)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(255) / 评论(0) 分类 2015CRI中国国际广播电台
学英语单词
abbr.
abnormal immunoreaction
aerodynamic characteristics of launch vehic1e
agards
alkanone
amaseno r.
Antoninus Pius
audit of construction in process
automatic picture start-stop
beam splitters
Bernard-Horner syndrome
beryllia valve seat
bobby-soxers
brightness gain
Britanskiy Kanal
capital budgeting system
ceiling reflector
channel expense targets
cheaste
consultation machinery
coralline facies
decision-making function
difference product
digging-sticks
docketing software
dreamboat
drugmanite
electric traction interference
electronically scanned tacan antenna (esta)
Emaojoma
Eucidaris
fabric characteristics
fadil
full-shaped
Gaius Julius Caesar Octavianus
hanging on to
heliconiuss
high pass lilter
hypothetical operating system
identical to
infopacks
inrolled
institutional learning
inter-laboratory reproducibility
jeanne
Kerkonkoski
lithium-sulfur dioxide cell
make pretence
micro-adjustment
microconglomerate
national need
OCTL
on the air monitor
on-mike
order mark
outpull
Pak Ou
pepeater compass
petris
phenanthrolene
pick ... out
planet wheels
poison tower
primitive lymphocytic lymphosarcoma
process descriptor
propulsive power
Protomyzostomidae
rebasing
release print
remoulding loss
romancists
RSEXEC (resource-sharing executive)
Rucklidgeite
samling
satsuma tree
sedimentary rocks
severe penalty
single action hydraulic stamping press
slice away
special aptitude
sporopollenins
standard letter
static gravimeter
streptococcus group b
system-sentence
takifugu oblongus
telefotos
Thumayl, Wādī
underwater reactor
upholstery for vehicle
upright silo
vapour-dividing head
variableparameter channel
vision modulator
vladimir vladimirovich putins
welding-operator
weldon mud
whitehearts
wind-sucker
Wireless Gateways
zablah
zenith-angle variation