古火山岩

By Gary Garriott Broadcast: September 15, 2003 This is Robert Covent with the VOA Special English Development Report. 1)Clay is found almost everywhere in the world. It is formed by the action of wind

发表于:2018-12-01 / 阅读(469) / 评论(0) 分类 VOA2003(下)-发展与科学

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The Earths crust is old. Billions of years old. So old that its nearly impossible to imagine. And now scientists have discovered what may be the oldest

发表于:2018-12-24 / 阅读(62) / 评论(0) 分类 Scientific American(九)月

Three months ago, Mt Tongariro erupted, sending a cloud of ash into the sky. Today the same thing happened and it happened suddenly, without any early signs or noise. Again it sent a cloud of ash into the sky, about 5000m high. Listen to August 8th 2

发表于:2018-12-31 / 阅读(40) / 评论(0) 分类 新西兰英语

Sand 沙子 If you look around you, you can find sand very easily. 你若环顾四周,就很容易发现沙子。 Sand comes from rocks. 沙子源自岩石。 Each grain of sand is less than 2 millimeters in diameter. 每粒沙子的直径小于两毫

发表于:2019-01-10 / 阅读(53) / 评论(0) 分类 与美国小学生一起学英文第5册

DEVELOPMENT REPORT - Working With Clay: A How-to GuideBy Gary Garriott Broadcast: Monday, January 09, 2006 I'm Steve Ember with the VOA Special English Development Report. Clay is found almost everywh

发表于:2019-01-16 / 阅读(71) / 评论(0) 分类 2006年慢速英语(一)月

Part IV Dangerous Planet 第四部 处境危险的行星 The history of any one part of the Earth, like the life of a soldier, consists of long periods of boredom and short periods of terror.British geologist Derek V. Ager 地球的任何一部分历史

发表于:2019-02-25 / 阅读(45) / 评论(0) 分类 万物简史
学英语单词
a well - oiled machine
AC electric drive
actual valency
advancement in rating
air operational communications network
allocating data array
apparatus ligamentosua sinus tarsi
back-end metallization
bismuth iodide
blue primary information
building expense
cadmium selenide
carboxylesterase
cerulean blue
chairwork
chemosorption
churus
clandestine operation
coal sample for gas test
codes of behavior
coefficient of facewidth
compensating moment
dynamic requirement
eaglify
egress time
enoplometopids
European supremacy
foamed at the mouth
forest environment
fsk (frequency-shift keying)
gamma-induced ionization
genus myrmeleons
gesture politics
gewd
Hall's theorem
hydro oil sump tank
hyperarchy
imminentnesses
impunctatus
in gala
inhalatio
interchange of information
isotrideyl myristate
jargonised
Kerspetalsperre
keyed pulse
layout line
lead damp course
lentor
leptonic weak process
liable to customs duty
lih-
maunder diagram
measuring indicator
Meliosma oldhamii
middle-tier
milk sugars
Nurmo
offshore drilling unit
Old Macedonian
orchid cactus
ordered tree
overhang eaves
parauronema sp.
pendulum deviation
PK (peak)
point of zero voltage
poma
prodromus
puncturevine
rack one's brain s
radar electronic scan technique (rest)
ralph cram
rated capacity adjustable range
red-branched amelanchier
reliable software
Rift Valley Prov.
semi-automatic signal
single-sided target tube
skeleral muscle
skysurfing
soft-lefts
solution temperature
squarewave electromagnetic flowmeter
stageless transmission
steel travel(l)er
summer manuring
Swahili language
syllestia
take a dim view of
telocinovufagin
time-management
top-flight
trepanner
triple motion agitator
two position valve (hydraulic)
ulling
Uttar Hārina
Westminster Cathedral
whole population
WORKSONG
Yelcho, L.