沉积动力学

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(68) / 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(92) / 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(85) / 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(53) / 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(98) / 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(89) / 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(95) / 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(89) / 评论(0) 分类 Scientific American(四)月

Many Life Forms Discovered Deep under Antarctic Ice 南极冰层下发现许多形式的生命 Scientists from the United States say they have found fish and other aquatic creatures living under icy waters in Antarctica. They made the announcement af

发表于:2019-01-12 / 阅读(82) / 评论(0) 分类 2015年VOA慢速英语(三)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(74) / 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(63) / 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(87) / 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(117) / 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(110) / 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(90) / 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(57) / 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(81) / 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(96) / 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(103) / 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(100) / 评论(0) 分类 托福英语
学英语单词
8-methoxyposoralen
A-eliminator
ACMT
adiabatic humidification
aestates
age of parallax tide
altitude correction factor
attackman
auto correlation function
autogenetic drainage
balanced error solution
basic limit
beclawed
benzylhydantoins
bichromate battery
border check post
buff bath
camerounais
candidiases
challenge to panel
come to smash
consultant
Consus
corned meat
croyden
cut out switch
Dactylopterus
data-modelling
decayof luminescence
deictically
Derby Center
detailed catalogue
direct production
double press process
drop something like a hot potato
ebrard
firemen carry race
fitting-up
furnace crown
Gampaha
genus Jacksonia
gill cowling
global feature measure
granddaughters
group-buying
hydro-thermal mineralization
incompetent fold
induction energy meter
Iowa caucus effect
Isachne beneckei
La Perouse Strait
left-hand derivative
lepidosirens
line-shooters
lorenzis
marasmius rhyssophyllus
masking technique
metalloprotenase
microphyric
Mignon's eosinophilic granuloma
no-doz
nominal operating
oxalic monoamide
perspectartigraph
pipet washer
playact
polyethylene glycol oxalate
predecessing
profile shaft connection
qassam
r-rating
radiophotoluminescent
Rana limnocharis
revire
Sapylin
Seed data
self-reciprocity
shoreling
single-sided pattern plate
solidungular
speaking out
speculative loading
speedskaters
splash
squint hoos
St Gennys
stator teeth
steel strand rope
sticky bomb
subcutaneous incision
synchronous tracking
tachyphrasia
taxonomizers
tobacco budworm
Torrence, Frederic Ridgely
tropophyllous
trowel machine
unsubmissive
vins blancs
viscoce
volitional control
zdvs