补给层水位下降

CHAPTER ONE [00:44.25]READING [00:45.74]Page 2 and 3 [00:48.43]THE YOUNG GREEN CONSUMER GUIDE [00:51.51]Review by Tony Ma [00:54.62]This book says that our world is in danger [00:59.32]It is vital that we do something to save the earth [01:04.21]Firs

发表于:2018-12-01 / 阅读(479) / 评论(0) 分类 上海牛津初中英语九年级

Wednesday's air quality index in Atlanta, Georgia, miles away from any of the fires, was unhealthy. In Chattanooga, Tennessee, it was 151. What exactly does that mean? SUBTITLE: What is the AQI? JENNIFER GRAY, CNN METEOROLOGIST: The one thing you nee

发表于:2018-12-02 / 阅读(193) / 评论(0) 分类 CNN美国有线新闻2017年1月

In 2008 astronomers discovered surprising amounts of water molecules where planets were forming near young stars. But how, they wondered, could those molecules survive? They should have been destroyed by ultraviolet radiation. In theory, planetary du

发表于:2018-12-02 / 阅读(154) / 评论(0) 分类 Scientific American(十二)月

[00:00.86]Unit 2 life in the Future [00:03.83]Lesson 6 [00:10.16]Exercise 1.3 [00:13.18]People and the internet [00:15.27]In 2050,everyone in the world [00:18.47]will have a personal web page [00:20.19]with their information on it. [00:22.50]These we

发表于:2018-12-04 / 阅读(140) / 评论(0) 分类 北师大版初中英语九年级(全一册)

EXPLORATIONS - Blue Holes: Some of the Least Explored Areas on Earth BARBARA KLEIN: Im Barbara Klein. STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. A blue hole is a flooded sea cave with a hole that opens up at the lands s

发表于:2018-12-07 / 阅读(128) / 评论(0) 分类 2011年VOA慢速英语(十一)月

Now, the VOA Learning English program Words and Their Stories. On this weekly show, we tell about commonly used American expressions. By knowing these expressions, you can improve your ability to speak and understand American English. Today, we go de

发表于:2018-12-07 / 阅读(89) / 评论(0) 分类 2017年VOA慢速英语(六)月

Lesson 91 Milk And Its Uses 第91课 牛奶及用途 Every child likes to drink new milk. 每个孩子都喜欢喝鲜牛奶。 How pleasant it smells and how sweet it tastes! 那香浓的味道, 甜美的滋味是多么诱人! Do you not want to kn

发表于:2018-12-18 / 阅读(81) / 评论(0) 分类 英国学生科学读本

联合国环境规划署将每年的6月5日确定为世界环境日,希望通过世界环境日主题让人类认识到可持续发展和公平发展的重要性,最终使全人类拥有一个安全而繁荣的未来。 2006年世界环境日庆典

发表于:2018-12-18 / 阅读(106) / 评论(0) 分类 英文语法词汇

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Take a fire antdon't forget your gloves. Toss it in water, and it'll eventually drown. But throw a group of fire ants into the water, come back the nex

发表于:2018-12-24 / 阅读(105) / 评论(0) 分类 Scientific American(四)月

The divers started in the ocean, but they are now within solid bedrock, 150 feet beneath someone's living room. They are now swimming in the water supply for the town above. Here they find, as they had hoped, life in the pitch darkness. These are hyd

发表于:2018-12-26 / 阅读(102) / 评论(0) 分类 自然百科2009年

If you've been outside before a rainfall in the spring, you might have noticed a particularly fresh or sweet smell that seeps into the air a few minutes before the first drops begin to fall. If you're familiar with this smell, it's a great way to pre

发表于:2018-12-27 / 阅读(94) / 评论(0) 分类 英语时差8,16

Water Blankets Forming Planets A study in the journal Science finds much more molecular water in regions where planets are forming around young stars. The mechanism to keep the water from being destroyed by UV radiation appears to involve some of the

发表于:2019-01-02 / 阅读(195) / 评论(0) 分类 60秒科学

VIENNA, Nov. 13 (Xinhua) -- Monthly average prices of the Organization of Petroleum Exporting Countries (OPEC) dropped to 105.47 U.S. dollars per barrel in the past month, the Vienna-based cartel said Tuesday. It was the second consecutive monthly de

发表于:2019-01-07 / 阅读(118) / 评论(0) 分类 英语新闻

BARBARA KLEIN: Im Barbara Klein. STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. A blue hole is a flooded sea cave with a hole that opens up at the lands surface. These cave systems form in carbonate rock, often on islands.

发表于:2019-01-12 / 阅读(146) / 评论(0) 分类 2010年VOA慢速英语(十一)月

By Melinda Smith Washington 16 November 2007 For at least three decades, Americans have been encouraged to put down their cigarettes and quit the habit -- for at least one day [November 15th]. The Great American Smoke Out, as the day is called, is de

发表于:2019-01-25 / 阅读(90) / 评论(0) 分类 VOA常速英语2007年(十一月)

Everyone who has eaten instant noodles before knows how it looks like. It is very easy to cook it instantly by putting the noodles into the boiling water and add in those MSG packets, together with your other ingredients like eggs or vegetables. Howe

发表于:2019-02-05 / 阅读(150) / 评论(0) 分类 阅读空间

为帮助大家更好准备英语六级图表作文,现给大家提供英语六级考试图表作文的常用词总结,希望对你们考试有帮助! 1.有用的词 上升:increase rise ascend core surge go up climb mount level up 下降: de

发表于:2019-02-17 / 阅读(98) / 评论(0) 分类 四六级写作指导

GIRL:Wow.You seriously spend a lot of time alone. BOY:What?So heres how it works.Water goes in the top,and food comes out the bottom. GIRL:When you shot it into the stratosphere( ['strtə,sfɪə]同温层) you figure it would induce( [ɪn'djuː

发表于:2019-02-23 / 阅读(96) / 评论(0) 分类 跟着美剧练发音

Voice 1 Thank you for joining us for todays Spotlight. Im Joshua Leo. Voice 2 And Im David Bast. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 In the ea

发表于:2019-03-04 / 阅读(134) / 评论(0) 分类 环球英语 Spotlight

Heres How..In a lake, cold water sinks to the bottom, forming a distinct layer underneath the warmer water on top. Wind blows across the top layer. This causes more of that warm layer to build up on one end of the lake, pushing the cold layer underne

发表于:2019-03-06 / 阅读(173) / 评论(0) 分类 英语时差8,16
学英语单词
Abadie's sign
akure
all-out level speed
alligator skin effect
analex
antenna induced microvolts
anthelvincin
assimilate with
back stand slide
be no slouch
billiondollar
bun ochra fibre
business type budget
byte stream
calcium biphosphate
car wax
case-making machine
cellspectrometer
Centralized borrowing and lending system
cervical foramen
clerosteron
coal classification system
complex tone
continuously differentiable
cool air hose
cooled infrared detector
counter current centrifuging
degree of fatigue
department hour method
diglycol laurate
distal margin
drainage pipeline
econiches
economic commission
equilibrium population (crow 1948)
evener roller
evolutility
flight progress board
forcipomyia (lasiohelea) danxianensis
franlinic
free voting
freeltes
genus gambelias
halide leak detector
higher order
inter-affair
interculturalism
intersporal
iwogumoa xinhuiensis
job step restart
jumble sale
Kangsonru
kilo ohm
less-than-carload lot
Lewis,C(ecil) Day
lower transit
lumbodynia
lysenkoes
magdynamo
man of steel
mcechanics of development
Multai
MZE
no end
noticeboards
nut buoy
oliva tessellata
open ceiling
operatizes
pack carburising
plastome(steen 1911)
pollone
postfactory
pulmonary arteriovenous fistula
Puppie
rhotacised
rigorous analysis
rudder force character
scandium bromide
shave-rush
simple sliding friction
smoked up
snowy owls
spatial numerical range
stagediving
start - up firms
steeped taper tube
Süderfahrenstedt
tentative valuation
the Great Hunger
the role of government
trigonostoma antiquata
un-nurtured
underdraining
unparriable
venessa
vertical magnetic recording head
water-soluble salt
WECO
western regions
whole beer
wooden building