器官发演化

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(770) / 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(169) / 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(230) / 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(268) / 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(171) / 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(162) / 评论(0) 分类 纯正英语一分钟

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(93) / 评论(0) 分类 英语时差8,16

Questioning the universe Stephen Hawking There is nothing bigger or older than the universe. The questions I would like to talk about are: one, where did we come from? How did the universe come into being? Are we alone in the universe? Is there alien

发表于:2018-12-28 / 阅读(182) / 评论(0) 分类 跟希哥学英语

Americans, Briton Win Nobel Chemistry Prize for Directed Evolution Two Americans and one Briton have won the 2018 Nobel Prize for Chemistry for developing new processes used to create drugs, chemicals and biofuels. Frances Arnold of the California In

发表于:2019-01-03 / 阅读(163) / 评论(0) 分类 2018年VOA慢速英语(十)月

This is Scientific American's 60-second Science. I'm Cynthia Graber, this will just take a minute. Sex might seem like one of those little gifts from evolution. But its pretty inefficient from an evolutionary perspective. Itd be much easier to reprod

发表于:2019-01-04 / 阅读(189) / 评论(0) 分类 Scientific American(七)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(166) / 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(242) / 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(202) / 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(171) / 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(166) / 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(209) / 评论(0) 分类 2017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(362) / 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(177) / 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(211) / 评论(0) 分类 2015CRI中国国际广播电台

Fossil discoveries have begun to unravel the riddle of whale evolution, providing paleontologists with clues. Indohyus was a fox sized, even toed ungulate found in India. This herbivore was adapted to living in the water like whales, with a bony wall

发表于:2019-02-15 / 阅读(122) / 评论(0) 分类 英语时差8,16
学英语单词
a tight situation
abducent
acoustic detecting apparatus
agathidium (agathidium) familiare
anti-slip serration
axial fir-tree blade root
Bhākra
binarizations
black-cap
bush-cricket
Castanospermum
centering wedge
chemical treatment process
chemotaxonomic
chromdisthene (chromekyanite)
commiseratively
Cope's law
coupon department
course line selector
Cowper's cyst
cyberjournal
datasheet
editrixes
enraging
evolutionary developmental psychology
external fistula
fabes
family pseudococcidaes
fellow sufferer
food yolk
force outs
graphical chain model
gross building cost
Gueldenstaedtia
hair manicure
hand-held microcomputer
harbour tug medium
high boiling solvent
Hippolytos
Honduran monetary unit
hydrophis ornatus
Ihwa
increase in left atrial pressure
information generator system
interval depth
jacquardlike
kingpost antenna mount
korzybskis
loading oil pressure
long-termers
look out procedure
lower circlip
make holiday.
malayo-polynesian
mechanical koji preparation
metal cluster
metal gauze
montmorillonitic
Moreauite
neofolk
niranium
nonlinearity of response
okinalin
options trading representative
optoelectronic shutter
Orchis kunihikoana
outthinks
Paimpol
picado
pnranoia originaria
polycomponent
prevaccine
Printen
prorogator
quickbreak
reciprocal space
reflow profile
rein orchids
remote signal transmission
return-drain pump
romanos
save drip pan
scale defect
schwimmers
security axiom
separable closure
sideration
simulation of space debris
singmasters
Sitki
stay seated
sub-basins
SUPER PHOENIX reactor
the Potala Palace
transaction demand
tree stage
two stage combustion engine
valve adjuster
variable-flux reactor
weber number 3
weft crackiness
whole-body monitor