格林氏沉降器

DAVID GREENE, HOST: Bear with me because we're going to spend a minute or so talking about statistical analysis, you know, the kind used to analyze data and predict who might win March Madness or an election. But what if we used data to look at liter

发表于:2018-12-17 / 阅读(81) / 评论(0) 分类 2017年NPR美国国家公共电台4月

This is Scientific America's 60-Second Science, I'm Cynthia Graber. This'll just take a minute. Its hot to research life in extreme environments. There are organisms that thrive in boiling hot thermal vents and in toxic stews. These extremophiles, as

发表于:2018-12-24 / 阅读(132) / 评论(0) 分类 Scientific American(五)月

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

Roughly 1,000 years ago, Europe enjoyed several centuries of balmier average temperatures. Dubbed the Medieval Warm Period, it was the last time before the present that agriculture could flourish in Greenland. This era also provided fodder for countl

发表于:2018-12-24 / 阅读(137) / 评论(0) 分类 Scientific American(十一)月

(MA) Look at our topographical map and you'll see that the middle third of the North American continent --- from the Rocky Mountains almost to the Mississippi River --- is pretty flat. This is the Great Plains. This kind of area is sometimes called

发表于:2018-12-30 / 阅读(113) / 评论(0) 分类 托福听力短文

About 110 million years ago, a large plant-eating dinosaur covered with sharp points walked the land. Called a nodosaur, it is now the best example of its kind ever found. This new species of dinosaur is being called a one-in-a-billion discovery. Rec

发表于:2019-01-02 / 阅读(146) / 评论(0) 分类 2017年VOA慢速英语(五)月

This is Scientific American's 60-Second Science, I'm Christie Nicholson. Got a minute? During the last ice age our problem was too little carbon. Unlike today where too much carbon is causing global warming. Past glacial ages occurred partly because

发表于:2019-01-08 / 阅读(159) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Farmers fertilize their fields to get the maximum meal from their crops. But the effects of these loads of nitrogen and phosphorous extend beyond the field and past

发表于:2019-01-08 / 阅读(162) / 评论(0) 分类 Scientific American(三)月

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(155) / 评论(0) 分类 Scientific American(四)月

Lake Sediment Could Better Date Ancient Finds Radiocarbon dating is the best-known and most widely used method to determine the age of organic material, such as bone or wood or plant matter. All such material contains radioactive carbon atoms, known

发表于:2019-01-14 / 阅读(125) / 评论(0) 分类 VOA标准英语2012年(十月)

'Googly-Eyed' Stubby Squid Captures Internet's Attention SCOTT SIMON, HOST: The cutest little thing was found on the ocean floor this week - a little googly-eyed purple squid off the coast of California. It looks like a close friend of Nemo. I'm join

发表于:2019-01-17 / 阅读(113) / 评论(0) 分类 2016年NPR美国国家公共电台8月

NOEL KING, HOST: Climate change is causing more rain in many parts of the U.S., and more rain means more flooding. And that is bad news for one Great Lakes region crop - wild rice. NPR's Rebecca Hersher has the story. REBECCA HERSHER, BYLINE: Norther

发表于:2019-01-17 / 阅读(100) / 评论(0) 分类 2018年NPR美国国家公共电台8月

What then of manned space exploration? 那载人的空间探索呢? The government recently announced plans to return to the moon by 2024. 美国政府最近宣布了2024重返月球的计划。 The successful conclusion of that mission will result

发表于:2019-01-18 / 阅读(122) / 评论(0) 分类 TED演讲商业篇

The 9/11 terrorist attack in New York not only killed people. It also killed local businesses, too, as many residents and companies moved out of the devastated area. 10 years on things are finally recovering. One Chinese restaurant has been part of t

发表于:2019-01-19 / 阅读(149) / 评论(0) 分类 世界各地新闻集锦

The geology of the planet 地球的地质情况 Welcome to the Anthropocene 欢迎来到人类纪 Humans have changed the way the world works. Now they have to change the way they think about it, too 人类改变了世界运行方式,现在,人类不

发表于:2019-01-26 / 阅读(177) / 评论(0) 分类 经济学人综合

The first human inhabitants(居民 ) of North America settled at least 2,500 years earlier than the people previously identified as the first Americans. So say archaeologists, who have unearthed a trove of stone artifacts belonging to the early A

发表于:2019-01-31 / 阅读(109) / 评论(0) 分类 英语新闻

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(156) / 评论(0) 分类 英语新闻

首先,我建议同学们不要上完辅导班就去参加考试。虽有趁热打铁之说,但是我相信绝大部分同学在上课期间已经把大部分的精力用于听讲和记笔记了,回家之后基本上就直奔安乐窝了。能够

发表于:2019-02-14 / 阅读(159) / 评论(0) 分类 雅思英语

Saying Good-bye to Cambridge Again --by Xu Zhimo 再别康桥 徐志摩 Very quietly I take my leave As quietly as I came here; Quietly I wave good-bye To the rosy clouds in the western sky. The golden willows by the riverside Are young brides in the

发表于:2019-02-18 / 阅读(164) / 评论(0) 分类 阅读空间

世界本没有长难句,修饰成分多了,便有了长难句。 阅读速度大部分来于短时间内理解长难句的能力。 大家在看长难句的时候,多思考,一个句子为什么这么长,常见的修饰成分到底有哪些?

发表于:2019-02-18 / 阅读(160) / 评论(0) 分类 托福英语
学英语单词
abashidzes
actebia praecurrens
allocation of special drawing rights
among themselves
annular electric scram magnet
Asterias Seamount
automatic step adjustment
beyotches
biaxial stretch
binder for tractor draft with single canvas
breakdown of air curtain
Bretonian series
byte-wide
carbonatize
chloroformyl chloride
color versatile copier
convergence coil
cryptocercidaes
DACAS
delay clause
Deryck
discoursers
doggie style
double strapped joint
Echidnopsis
extort sth from sb
FABC
fall under observation
finished plan
fissure bur
fluid welding
gauge seal
genus Zea
giant duodenun
gisarme
heat curing adhesive
high speed reader (hsr)
hoor
hydrothermic coefficient
hyperdisciplined
intergenic spacers
interhost
isophene(mayr 1963)
it's your funeral
Kapran
kelly safety valve
KOPS (kilo operations per second)
leifia flabelliradiata
Les Orres
lutanists
Mabuki
Madgaon
magnetoplasmadynamic generator
marketing engineering
micrometeorology
mimotype
mirth
monkey-protection tests
muscol
mustard agent
NIPTS
NLM (noise-load ratio)
nupson
olivellid
omental graft
optimum formula
optimum pressure
poloe
positive ion back current
premoistening
prinomastat
quasi-particle model
ravines
reasonably good
reckless driving
red kidney beans
reimportation
residual mass curve
roborate
Rothenbrunnen
rotor with non-salient poles
rushings-about
salazodine
scalenum
signal passage
single pressure feed valve
singulair
somatotropin release-inhibiting factor
spherical motion
starting winding
steady state short circuit current
subtracter adder
TECV
ticularly
tighted
To think of it!
toothtip
towing and general service launch
traffic physiology
traumatic apnea
water wings
zipper insertion