分层含水量

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(486) / 评论(0) 分类 上海牛津初中英语九年级

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

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(130) / 评论(0) 分类 2011年VOA慢速英语(十一)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(111) / 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(106) / 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(105) / 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(96) / 评论(0) 分类 英语时差8,16

Heres something we tend to take for granted: drop a few ice cubes into a glass of water at room temperature, and in a few minutes the water will cool. How does this work? 有件事情我们总觉得理所当然:室温下把一些冰块放入水中,

发表于:2018-12-28 / 阅读(143) / 评论(0) 分类 初学者听力文摘精选

[00:01.59]UNIT 3 [00:07.61]Lesson 12 [00:13.52]Exercise 1.2 [00:16.30]The Disappearing Sea [00:18.87]The Aral Sea is a large lake in Central Asia. [00:23.46]There are two large rivers [00:25.45]that give water to the lake. [00:27.98]Around 1960, farm

发表于:2018-12-29 / 阅读(226) / 评论(0) 分类 北师大版初中英语八年级上

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(198) / 评论(0) 分类 60秒科学

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(147) / 评论(0) 分类 2010年VOA慢速英语(十一)月

Whales, seals and walruses stay warm in chilly water because they have a thick layer of blubber. We humans rely on something like blubberneoprene rubber wet suitsto spend time in cold water. But the thick versions for really icy water are heavy and u

发表于:2019-01-17 / 阅读(150) / 评论(0) 分类 2016年Scientific American(十)月

Don: Yael, I'm going to take some vacation time so I can visit Chicago before it sinks and disappears. I mean, I'd like to see the Sears Tower and eat some deep-dish pizza before it goes. Yael: Relax, Don. Although Chicago is sinking, we're only talk

发表于:2019-01-22 / 阅读(152) / 评论(0) 分类 英语时差8,16

今天我们要学的词是clear-cut。 Clear-cut, 是清楚的,明确的。There was no clear-cut winner in the debate, 这场辩论没有明确的胜利者。Last year's championship team is not the clear-cut favorite for this season, 去年的冠军

发表于:2019-02-02 / 阅读(150) / 评论(0) 分类 英语单词荟萃

今天我们要学的词是clear-cut。 Clear-cut, 是清楚的,明确的。There was no clear-cut winner in the debate, 这场辩论没有明确的胜利者。Last year's championship team is not the clear-cut favorite for this season, 去年的冠军

发表于:2019-02-03 / 阅读(113) / 评论(0) 分类 英语每日一词

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(152) / 评论(0) 分类 阅读空间

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(97) / 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(137) / 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
absolute gravity measurement
administrator of property
affix ion
al hadidiyah
Allen bolts
aminooxamide
are-through
aspiration
Avestan
banner towing
biovetin
blue i.
Boro R.
by operation of law
Carapo, R.
cctt
cesium vapour rectifier
chiapensis
claim for set-off
cliquisms
clitordidean
Crombie, Mt.
cross-correlation method
current instruments
cut a ridiculous figure
Cynin, Afon
Diex
double trailer
duration response
Estrees-Saint-Denis
expanded polystyrene
follicular dyskeratosis
frias
get a dressing down
go to one's fate
gum-elastic
highfat
Homburgh
hypomelanosis
i-cwethen
incatch
industrialization plan
infulatus
input file specification
irradiated fuel transport cask
judicium
just to name a few
latchkey child
latibulate
light-footedly
magnetic powder flaw detector
make a remittance
malarkies
Malyk, Ozero
medium coating
Musculus adductor
native file
nematic liquid crystal
one - track mind
ox-vomit
pay formation
PEPP
phenoldisulfonic acid
philanthropic gift
piqueerers
Pope County
premarins
progressive gauge
pyraidal decussation
rabitic
rack wiring
random meander
reed pipe
relata
retendering
rules of etiquette
Seidel third order theory of aberration
sickle feather
sizing facility
social climate
Sophora praetorulosa
split-step fourier method
superficies cold with interior heat
surface of second class
Tepoto, I.
that will show sb
third gear
timber grain silo
transient analyzer
triheptadecanoate
tsuei
useful lift
value-added service
veneniferin
vertical weir
vet.med.
water space
westmar
whip crane
white felt
wire ligature
with profit