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Dinosaur Death Leads to Rise of Fish 恐龙死亡导致鱼类增多 Tens of millions of years ago, an asteroid hit what is now the Yucatan Peninsula of Mexico. The event led to a global mass extinction that has been linked to the end of the dinosaurs

发表于:2018-12-08 / 阅读(152) / 评论(0) 分类 2015年VOA慢速英语(七)月

It's a slow drip, but it's melting glaciers and we are to blame. That's according to a new research which finds the earth is now the hottest since it has been in 400 years and potentially the last 200

发表于:2018-12-11 / 阅读(122) / 评论(0) 分类 万花筒2006年

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Theres a Native American site in Ohio that appeared to be a fort. But recent discoveries by archaeologists at the University of Cincinnati show thats n

发表于:2018-12-24 / 阅读(141) / 评论(0) 分类 Scientific American(九)月

As investigators studied the large serrated teeth of the giant shark, they discovered the massive power of its bite - a force of 20 tons. 在调查者研究这些巨鲨的大型锯齿状牙齿时,他们发现了它巨大的咬合力可达二十吨。

发表于:2018-12-28 / 阅读(106) / 评论(0) 分类 侏罗纪搏击俱乐部

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. As scientists delve deeper beneath the oceans surface, they find bizarre creatures that have adapted to harsh and extreme environments. Now comes a new o

发表于:2019-01-08 / 阅读(152) / 评论(0) 分类 Scientific American(四)月

Urine Analyzer 尿液分析仪 blood sugar(glucose ) analyzer血糖分析仪 test strip 测试条 reagent 试剂 Semi-automatic Biochemical Analyzer半自动生化分析仪 Automatic Blood Cell Analyzer全自动血细胞分析仪 Urine sediments

发表于:2019-01-08 / 阅读(172) / 评论(0) 分类 医学英语

Scientists Create New Maps of Ocean Floor 科学家绘制新的海底地图 Until recently, scientists had mapped only about 20 percent of the sea floor. But our knowledge of the deep seas is changing because of information from satellites. Scientist

发表于:2019-01-12 / 阅读(219) / 评论(0) 分类 2014年VOA慢速英语(十)月

By combining their isotope findings with other fossil residuespollen levels and so on, 把对同位素测量的结果和能够说明其他情况(如花粉浓度等)的别的化石残留物结合起来, scientists can, with considerable confiden

发表于:2019-01-17 / 阅读(141) / 评论(0) 分类 万物简史

Climate change 气候变化 Good news at last? 终于来了好消息? The climate may not be as sensitive to carbon dioxide as previously believed 气候对二氧化碳的敏感性可能低于先前的预期 CLIMATE science is famously complicated,

发表于:2019-01-17 / 阅读(123) / 评论(0) 分类 经济学人综合

托福阅读:在阅读中感受文章风格的不同 1、托福阅读文章来源于哪里? 所有的托福阅读文章都是语言枯燥无味、措词准确精妙、风格独树一帜。因为所有的托福阅读文章都选自美国的大中学校的

发表于:2019-01-18 / 阅读(110) / 评论(0) 分类 托福英语

Chapter 1 第一章 The Setting of the Stage 人类历史舞台的形成 We live under the shadow of a gigantic question mark. 人类一直以来都生活在一个巨大问号的阴影下面 Who are we? 我们是谁? Where do we come from? 我们从哪

发表于:2019-01-21 / 阅读(143) / 评论(0) 分类 美国学生人类历史

CANBERRA, Oct. 14 (Xinhua) -- Australian scientists have made the alarming discovery that sea levels have risen more in the past century than at any other comparable period in the past 6,000 years. Researchers from the Australian National University

发表于:2019-02-06 / 阅读(154) / 评论(0) 分类 英语新闻

We wandered through a confusion of departments where people sat at large tables doing intent, 我们漫步穿过一个又一个部门,只见人们坐在大桌子跟前, investigative things with arthropods and palm fronds and boxes of yellowed bo

发表于:2019-02-13 / 阅读(131) / 评论(0) 分类 万物简史

Only about one bone in a billion, it is thought, ever becomes fossilized. 据认为,在10亿根骨头当中,只有大约l根能变成化石。 If that is so, it means that the complete fossil legacy of all the Americans alive todaythat's 270 mill

发表于:2019-02-17 / 阅读(102) / 评论(0) 分类 万物简史

21 Life Goes On 第二十一章 生命在前进 It isn't easy to become a fossil. 要变成化石可不容易。 The fate of nearly all living organismsover 99.9 percent of themis to compost down to nothingness. 几乎所有的生物其中的99.9%以上

发表于:2019-02-17 / 阅读(137) / 评论(0) 分类 万物简史

Mitochondria manipulate oxygen in a way that liberates energy from foodstuffs. 线粒体支配着氧,释放食物中的能量。 Without this niftily facilitating trick, life on Earth today would be nothing more than a sludge of simple microbes. 没有

发表于:2019-02-17 / 阅读(143) / 评论(0) 分类 万物简史

We are all the result of a single genetic trick handed down from generation to generation nearly four billion years, 我们都是同一遗传戏法的结果。那种戏法一代一代地传下来,经历了差不多40亿年, to such an extent that

发表于:2019-02-17 / 阅读(107) / 评论(0) 分类 万物简史

In the 1830s, the British naturalist Edward Forbes surveyed ocean beds throughout the Atlantic and Mediterranean 19世纪30年代,英国博物学家爱德华福布斯勘察了大西佯和地中海各处的海床, and declared that there was no li

发表于:2019-02-25 / 阅读(159) / 评论(0) 分类 万物简史

As one commentator has put it, fleeing would mean selecting a slow death over a quick one. 有一位评论家说,逃跑意味着在慢死和快死之中选择慢死。 The death toll would be very little affected by any plausible relocation effort,

发表于:2019-02-25 / 阅读(120) / 评论(0) 分类 万物简史

There was one other major problem with Earth theories that no one had resolved, or even come close to resolving. That was the question of where all the sediments went. Every year Earth's rivers carried massive volumes of eroded material500 million to

发表于:2019-02-25 / 阅读(122) / 评论(0) 分类 万物简史
学英语单词
.pcm
aftercool
agno
altoist
aluminum bromiae
antipoliss
arabopyranose
Aroon Oscillator
automatic data logging
bar of conscience
be enthroned in the hearts
berossus
Blitum
breach of obligation to pay an instalment
C-Quens
carpal articulation
cermaide
charybdis natator
Chirita vestita
clarence shepard day jr.s
colo(u)r television tube
Condé-sur-Noireau
copper's nark
cross-continent
dead faint
deaerating hotwell
diffused periaxial encephalitis
diuturnity
dochter
easefull
electitious
electric crane weighing machine
electron image intensifier
empiercing
entosarc
extreme process
family rutaceaes
farags
faunal stage
flavanol
fluides
foot lever holder
fuel-saving technique
genohormone
genus calypsoes
glory-hole
goal areas
golgin
grilled beef slices
HA (hydraulics accumulator)
hackings
honey sweet
huang j?n ting
insectopia
inulaceae
Jixie
kegley
keypair
lengthening
line of actual control on the border
lygaeidaes
Masovians
maximum planing length
melismatic
mishappen
mitochondrion
nail biter
Nandus nandus
ndichie
neolinderalactone
neotetrine
Novonezhinka
oil spill recovery vessel
pied-billed grebes
pneumatic vibratory knockout
potassium trichromate
Povanyl
pretensioned sleeper
psilopaedic
radio frequency preheating
real closed
reciprocating knife
reference surface center
repeated bend test
rope end
scomberomorus koreanus
second line stock
secuerity
single-tree
stern tube sealing
un-fucking-believable
undirects
UNSF
upright postion
urubamba
Wakashan language
Wandale
witch-hazel,wych-hazel
wooly lip fern
xingshu
yzy
zoologers