火山沉积物

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(45) / 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(52) / 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(85) / 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(49) / 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(82) / 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(109) / 评论(0) 分类 医学英语

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(79) / 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(65) / 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(54) / 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(69) / 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(76) / 评论(0) 分类 英语新闻

今天我们要学的词是 volcanic ash, volcanic is spelled v-o-l-c-a-n-i-c, ash is spelled a-s-h, volcanic ash。volcanic ash 火山灰。爱尔兰上星期发生火山爆发,The volcanic ash from Iceland forced the cancellation of flights in an

发表于:2019-02-07 / 阅读(63) / 评论(0) 分类 英语单词荟萃

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(59) / 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(39) / 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(67) / 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(80) / 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(57) / 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(98) / 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(57) / 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(63) / 评论(0) 分类 万物简史
学英语单词
a run go
Akraós
anti-fouling
as black as a as jet
asynchronous concurrent event
Barlow, Joel
base spreading resistance
be it for someone
be-maddening
bluejoint reed grass
breathed new life into
cacher
cash disburse
Catholic Church
chain carry
class asteroideas
combatant value
compression volume ratio
counterthrusts
cross cut file
Cunnilinctio
customary right
dentes angularis
diamond tool holder
dolichantha
donaciolagria kurosawai
end-feed magazine
exact opposite
exchange bank
filtering medium
financial analysis
force triangle
forma-gelatin
furnace vessel
genus Lindheimera
gimblet
hand lever shifter
hannukahs
hastately
hauteville
heat loss due to unburned carbon
hot-melt adhesive
insectation
Iridocin
jammy Arab
Kjeldahl
linemen's tool belt
Mahammat
maneuvering flight
mastoid curette
maximum shock response spectrum
Mehdia
mesometeorologist
minimal phase
mours
movement pattern
naphthalin iodoform
Neusiedler See (Fertö)
New National Gallery
octillionths
oil garbage
OMSG
one-out-three system
Other operating costs
outraged
Panaon I.
perfection
perpendicular vector
plutonium oxide
Ponte di Piave
potlids
pulsed-doppler radar
radial-cooling slot
Raphidioptera
real-time programme simulation
Red-Ruffed
remove sb from school
residual chlorine analyser
respuesta
rest day
rypereue
Salix rosthornii
saturated recovery time
shipped in good condition
simultaneous pancreas and renal transplantation
soup bowl
spark quenching condenser
splenatrophia
spreading dogbanes
steel company
subilium
sushi train
teaching information theory
tie wall
to the last gasp
track shot
true precession
twinleafs
upregulating
vanished car
weight-reducing
whenhe