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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(130) / 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

It seemed like a good ideabecause rivers and ponds in Bangladesh were contaminated with bacteria, Bangladeshis switched to wells. But soon after, in the early 80s, researchers realized those wells were harming Bangladeshis with a new poisonarsenic. T

发表于:2019-01-08 / 阅读(137) / 评论(0) 分类 Scientific American(十一)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(158) / 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(154) / 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)

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

From the CNN Center in Atlanta, I'm Catherine Callaway. So glad you are checking in with us now! Here is a look at what's happening NOW IN THE NEWS. Senator Hillary Clinton pulled off a campaign saving comeback last night. Her backers saw Texas and

发表于:2019-01-26 / 阅读(174) / 评论(0) 分类 商业报道2008年(三)月

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

Today some of Sprigg's original Ediacaran specimens, along with many of the other fifteen hundred specimens that have been found throughout the Flinders Range since that time, 今天,斯普里格的埃迪亚卡拉标本原件,与自那以后在整个

发表于:2019-01-29 / 阅读(144) / 评论(0) 分类 万物简史

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(163) / 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
acoenesthesia
air inlet unit
assailed by
base construction line
bathyscape
beans and bullets shooter
biogeocenose
bisinuatus
Blairian
bus buddy
butt nugget
C.in C.
Chasalia
convoy screening plan
copper plate
cross-ply
dead on the target
dextrere
disastrously
dwarf colony
electromechanical steering equipment
emergency water supply
error code
Evynnis
facility for repair
fast valving protection during transient load cutback
fast-neutron reactor
gasoline upgrading
genus spheniscuss
ghosts of the former days
glutamic dehydrogenase
gull wing door
Hepinoid
hi-fax service
hjalmar
horizontal hula
horizontal machine center
Information memorandum
interdiurnal variation
interrogation suppressed time delay
ion output
kawachi
Los Dolores
luculency
mandatory restrictions on exports
Manuel Alves, R.
mean eclipic
milkwagons
minimum sludge tank capacity
mixtions
mnium trichomanes mitt.
naphtalan
NT (numbering transmitter)
nuclear EM pulse sensitivity measurement
nuclear material accounting system
operator cab (drivers cab)
orthogonal comparison
parallel-beam approximation
Parapara, I.
pearceite
periodic statement
plasma loading characteristics
Porga
printing diameter
pseudo-single domain
Q band
rathmann
rebuy
regiones antibrachii dorsalis
reradiating surface
right of creditor
Salesforce Service Cloud
Salvia L.
santophen
SCIF
Semenovia
serpinopathy
shearing area
Shimen Township
short oil
silica defect
slept-in
spotify
straight-linest
Swjaginzewit
tapetoretinal
transistorized digital-to-analogue converter
trechmannite
treitzs
tullibody
Tunis-Sud, Gouvernorat de
turbels
unidentified
unimolecular bonded layer
unkenned
unrhyme
unsolicited information
value raises
voltage to frequency to voltage
wear the cap and bells
Whipple bumper shield
word-book