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
acute illness
alymphocytosis
anzuroside
apex load
araeostyles
Aruwimi
ascending artery
Astley
atane
battery holddown
big tent
bleach liquid
blown
bond stress
Cassia L.
center calipers
cerebelli auriculum
cfoes
Chharra
class-leading
colla glutinum
come to the boil
contagious pneumonia of calf
counter-condemnation
denture balance
dimension units
Dist.
ecorche
effronteries
emergency ambulance service
empathy fatigue
equilibrium valve
factfiles
ferrocitricum chininum
fist-aid case
formal resin
fusion alloying
geared engine
halfplanar
high current injection test set
homeotypic division
Husser
interfingers
introduction valve
irreducible affine variety
junonia atlites
knitting channel
lower jack hook
lymph tract
lymphonodi retropharyngici
man-size
Mantjiltjara
mdc's
molybdenum blue
monarchized
monotone decision procedure
multiple admissibility
Ningyo-toge
Noludarum
obodo
ore deposit dewatering
Pasdrazide
phosphoric acid anodizing
photo-polymerizatoin
planned transport
plastidome
plotmeal
polystenohaline
potassium acetate
privately-financed
punish
raise drill
reel-bird
replicate plant
rotor face recess
Saccharum L.
saggar cement
school policy
secondary culture
separate cut off valve
sesbania exaltatas
Sidi Ali el Mekki, Rass
sotto portico
starting push button
steel magnolia
stepping preselector
sudburium series
switch-habit
syenodiorite
tagliapietra
tectite
telo-
tetrag
thyroid cartilages
transflux
twilight immunity
universal magnetometer
usinger
walk ... off
Whitespotted
Zaragozan
Zetbulin