连续率

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(1020) / 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(389) / 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(459) / 评论(0) 分类 VOA慢速英语2009年(二)月

One is just the passage of time. It's been out there, people has a chance to adapt to it and to learn how to use it in the way that works for them. So first reason. The second reason really is that it does provide an efficient way to triage potential

发表于:2018-12-11 / 阅读(319) / 评论(0) 分类 访谈录2012年

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(541) / 评论(0) 分类 新东方背诵文选

现在完成进行时(The Present Perfect Continuous Tense)表示由过去某时持续到现在的动作,由have(has)been+现在分词构成: It has been raining for three hours. 一连下了三个钟头的雨。 She has been working the whole mo

发表于:2018-12-18 / 阅读(434) / 评论(0) 分类 英文语法词汇

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(420) / 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(387) / 评论(0) 分类 纯正英语一分钟

[00:10.06]Gehrig continued to improve as a player. [00:14.05]By 1924, pitchers for opposing teams were having bad dreams about Lou Gchrig and Babe Ruth. [00:23.04]Ruth hit sixty home runs that year. [00:26.36]Gchrig hit forty seven and won the Americ

发表于:2018-12-26 / 阅读(448) / 评论(0) 分类 美国英语听力80篇

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(415) / 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(503) / 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(425) / 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(436) / 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(411) / 评论(0) 分类 2014年VOA慢速英语(四)月

The evacuation procedure 撤离过程 A:Could you just run through the evacuation procedure? A:你能否解释一下撤离步骤? B: Yes, of course. When you hear the fire alarm, which is a very loud, continuous ringing noise, you should go to the

发表于:2019-01-14 / 阅读(459) / 评论(0) 分类 职业技术英语口语

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(468) / 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(647) / 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(396) / 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(427) / 评论(0) 分类 2015CRI中国国际广播电台

Key Sentences(重点句子) 146.The connection was bad. 通话情况很糟。 147.There was a lot of echo and I couldn't hear well. 回音太多,我听不清楚。 148.I'll connect you agian. 我再为您接通一次。 149.I've just

发表于:2019-03-11 / 阅读(585) / 评论(0) 分类 实用英语
学英语单词
alcoholically
algorithm block
all-shot
allophane
antibody-mediated
armed support boat
associative action
audit questionnaire
Bernstein's theorem
Birze
bitey
borow
bothriembryontids
Bulbophyllum kwangtungense
bullet wound
carbanilic acid ethyl ester
chain pick
cholelithic dyspepsia
code generation
cooks pass.
copy edited
core branch
coulees
crusher roll
Darakuyeh
decomposition set of transformation
derhachi (dergachi)
deuteron capture
direct-injection method
discount price
dotter
dying testatment
femur fracture
foot lifter
freight list
Frewsburg
full monty
fundamental solution matrix
goatfell (goat mt.)
grit arrester
gwynned
hide stripper
humoursome
hydraulic-pump
hypnotised
i-flemd
Importal
incomprehense
Indigofera argutidens
ingraff
inventory-sale ratio
Kabikinase
kalium lamp
kaolin(kaoline)
Kuzhenerskiy Rayon
Leptothrix placoides
lobus appendicularis
lost or not lost
luminaire spacing
lymphocyst
marcel prousts
metal backup
Montrouge
moving wing aircraft
multi-sided
nail color
Nghe An, Tinh
noncontextualized
off-cast
omitted exogenous variable
ophisaurus harti
palmaz
PBP
pediatr
prementums
primary order longitudinal aberration
Protoplophoridae
pseudolinear
pulis
purity of strain
put teeth in
r. volaris (a. recurrentis ulnaris)
reverse flushing
rhopilema esculenta
rope sth off
rust-proof life
salt diapirism
sandbox tree
sea-biosphere interface
site polling
sparingly
spicks
squirminess
take with a pinch of salt
that's all you know
TNZ (transfer on nonzero)
trivalve
under embargo
virtual phase
water damage
wrestling-match
Yelkhovka