水面蒸发

40 Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ni

发表于:2018-11-28 / 阅读(451) / 评论(0) 分类 新概念优美背诵短文50篇

Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. U

发表于:2018-12-15 / 阅读(332) / 评论(0) 分类 新东方背诵文选

This is the VOA Special English Development Report. A few degrees can make a big difference when it comes to food storage. Foods can go bad if they get too warm. But for many of the world's poor, finding a good way to keep food cool is difficult. Re

发表于:2018-12-15 / 阅读(186) / 评论(0) 分类 VOA慢速英语2007年(十一)月

In China, saltiness is deemed as the most important flavor. 在中国的烹饪辞典里盐是百味之首 Every day except for rainy ones,Liu Yingwu is busy working in the brine pan. 不下雨的日子里,阿刘每天都要在盐田里忙碌 You ha

发表于:2018-12-28 / 阅读(175) / 评论(0) 分类 舌尖上的中国第一季

Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ninete

发表于:2019-01-08 / 阅读(171) / 评论(0) 分类 英语小短文

The Salinity of Ocean Waters If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic s

发表于:2019-01-08 / 阅读(190) / 评论(0) 分类 英语小短文

Experts: El Nino Could Be the Strongest on Record 专家:今年厄尔尼诺现象或是史上最强 Weather experts say this year could be one of the strongest El Nino events in recorded history. Experts say El Nino could mean severe weather conditio

发表于:2019-01-12 / 阅读(160) / 评论(0) 分类 2015年VOA慢速英语(十一)月

AS IT IS 2015-11-03 More of Us to Go Thirsty As Earth Dries Up Water supplies around the planet are running dry at an alarming rate. Scientists say the world is experiencing a shortage of fresh water. It will only worsen as the population grows and t

发表于:2019-01-12 / 阅读(160) / 评论(0) 分类 2015年VOA慢速英语(十一)月

Lesson 70 Evaporation 第70课 蒸发作用 Let us fill a small kettle with water, and place it on the fire. The water will soon begin to boil. After an hour or so we shall find the kettle quite empty, although no one has touched it since it was plac

发表于:2019-01-17 / 阅读(171) / 评论(0) 分类 英国学生科学读本

JUDY WOODRUFF:Now: why some of the Great Lakes are dropping to record low levels, and the economic bite that's accompanying this environmental change. Elizabeth Brackett of WTTW Chicago has the story. ELIZABETH BRACKETT, WTTW: Leland Harbor is the he

发表于:2019-01-27 / 阅读(207) / 评论(0) 分类 PBS访谈环境系列

关于、基础、靠、著论 例: This afternoon we are going to listen to a report on the international situation. 今天下午我们要听关于国际形势的报告。 Professor Shen will give us

发表于:2019-02-01 / 阅读(142) / 评论(0) 分类 考研英语

科学家估计,如果不减少二氧化碳排放,2100年地球平均气温将至少上升4摄氏度,到2200年会上升8摄氏度,无疑是地球灾难性的噩梦。 此前有科学家用气候模型分析称,全球气温将受二氧化碳排

发表于:2019-02-06 / 阅读(172) / 评论(0) 分类 阅读空间

WASHINGTON, May 17 (Xinhua) -- The U.S. National Aeronautics and Space Administration (NASA) announced Tuesday that the international Aquarius/SAC-D observatory will be launched on June 9, to study interactions between ocean circulation(循环) , the

发表于:2019-02-08 / 阅读(146) / 评论(0) 分类 英语新闻

We might not be alone in the universe. Actually, it may be confirmed as a very crowded place by new computer models developed to help identify habitable planets. Estimates of places that can sustain life have been based on the likelihood of them havi

发表于:2019-02-13 / 阅读(132) / 评论(0) 分类 英语听力精选进阶版

See the shadow, the stick has moved a bit,put a rock on the other end, and you get a line here. 看这影子 已经移动了一点 放块石头在新的末端上 这样就会有条直线 If you stand on that line,face the stick, you're gonna be headi

发表于:2019-02-16 / 阅读(127) / 评论(0) 分类 荒野求生

What the Student Say in Science Classes 自然科学课上学生们都说了什么 The following quotations were gleaned from classroom discussions in 5th and 6th grade science classes. 下面的这些话都是从五六年级的自然科学课的课堂

发表于:2019-02-17 / 阅读(169) / 评论(0) 分类 英语小达人

Icebergs Icebergs are among nature's most spectacular creations, and yet most people have never seen one. A vague air of mystery envelops them. They come into being -- somewhere -- in faraway, frigid waters, amid thunderous noise and splashing turbul

发表于:2019-02-17 / 阅读(147) / 评论(0) 分类 双语有声阅读

Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ninete

发表于:2019-02-17 / 阅读(146) / 评论(0) 分类 双语有声阅读

When you look at a lake, you are looking at a collection of molecules that have been there on average for about a decade. 要是你望一眼湖水,你看到的是一大堆分子,它们在那里平均已达10年之久。 In the ocean the residence

发表于:2019-02-25 / 阅读(147) / 评论(0) 分类 万物简史

The Salinity of Ocean Waters If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic s

发表于:2019-02-25 / 阅读(226) / 评论(0) 分类 双语有声阅读
学英语单词
49ers
alarm-call
alkyl isosulfocyanide
angle of cant
Antiflamisonum
Artemisia filifolia
as pale as sheet
astern bollard pull
attend the dedication of
beam-accessed MOS
blepharopachynsis
border cells
brain chemistry
building up by welding surfacing
by what means
cgto-architectural
Chelidonium majus
container load activity meter
control piece
Crosbie
cyclic anhydeide
deghosting
depreciation by kind
distance race
Duayaw-Nkwanta
e.t.c
earmarked surplus
East Indian fig tree
Erigeron vicarius
examining officer
extra-long distance
eye care
fair rent
feed rod bracket
folk-music
fur scarf
furnishable
gender balance
gratineed
groupifications
gunned it
gyromagnetc
Hemiboea glandulosa
hpci actuation instrumentation
inline pump
integral forged crankshaft
interdiction of commercial intercourse
Iron Belt
irrigation system
isogeneic graft
Khadhaffi
Kiiminki
kontuly
Kupfersilumin
Kuranakh-Yuryakh
Lepidocybium
limocrocine
linear spanning
magnetostructurally
Magnolia sieboldii
make one's own
market segments
metalomonossowit (metalomonosovite)
Min Mountains
narrow-angle glaucoma
nilpotent length
nose and tail
panorpa akasakai
pituitotropic
platform for pferences project
quinazolone
rank-size rule
releif
rescue cutter
retractable cable reel
river-sand
Ruatahuna
Sakony
San Diego, R.
secondary dump system
Selter's tuberculin
Sicapoo, Mount
siccate
sixbyfour
spent mixed acid
stretch cotton
summer job
surgical unit
system of reward
too-few
tooth-sac
trihalogen ester
Vachskiy Rayon
venesections
voicecast
voltametric titration
water chiller unit
Yazidi
yea and nay
zincworker