音标:[freʃ ˈwɔ:tə ˈplæŋktən] ;
淡水浮游生物

44.Obtaining Fresh water from icebergs The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being con

发表于:2018-11-28 / 阅读(612) / 评论(0) 分类 新概念优美背诵短文50篇

THE PROPERTIES OF WATER Earth is an ocean planet. About three billion years ago, life on our planet began in the deep blue seas. Ninety-nine percent of the living space on earth is in the oceans. Marine life is incredibly rich and varied. There are

发表于:2018-12-04 / 阅读(188) / 评论(0) 分类 人教高中英语高二

Water Cycle 水循环 All the oceans on earth are salty, while inland water is typically fresh. How does water become salty? We'll answer a listener's question -- today on Earth and Sky. DB: This is Earth and Sky. We recently visited the Austin Childr

发表于:2018-12-07 / 阅读(245) / 评论(0) 分类 (科普英语)Earth and Sky

Broadcast: February 21, 2003 By George Grow This is the VOA Special English Environment Report. Everywhere, water use is increasing. Humans already use fifty-four percent of all the fresh water in riv

发表于:2018-12-07 / 阅读(192) / 评论(0) 分类 VOA2003(上)-社会广角

The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is

发表于:2018-12-15 / 阅读(219) / 评论(0) 分类 新东方背诵文选

Plankton Poop May Help Scientists Predict Climate Changes 浮游生物的粪便帮助科学家预测气候变化 Scientists trying to predict future changes in our climate are using every possible source of data to make their calculations. Lately, th

发表于:2018-12-16 / 阅读(200) / 评论(0) 分类 VOA标准英语2015年(十月)

Climate Change Might Shrink Fish 气候变化会迫使鱼类变小 As the world's oceans heat up, salmon are migrating earlier. Plankton are shifting their range. But warmer water temperatures also mean warmer fishand faster-running metabolisms. 随着

发表于:2018-12-24 / 阅读(183) / 评论(0) 分类 2017年Scientific American(九)月

This bleaching occurs because corals can only live in a narrow temperature range, healthy corals get their color from microscopic algae living in their tissues, these manufacture food for the corals by photosynthesis, but when the temperature rises j

发表于:2018-12-26 / 阅读(162) / 评论(0) 分类 自然百科2014年

The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being considered quite seriously by many nations,

发表于:2018-12-30 / 阅读(185) / 评论(0) 分类 考研背诵50篇

CHAPTER 3 Ships School Sea gulls flew after the boat, screaming. The cook threw out food for them. They screamed louder and louder. More and more came, until there were hundreds. Arent they beautiful! cried Jessie. She went over to look. A big gull l

发表于:2018-12-31 / 阅读(181) / 评论(0) 分类 6 蓝色海湾之谜 Blue Bay Mystery

Water is the

发表于:2019-01-02 / 阅读(287) / 评论(0) 分类 知性英语

The Properties Of Water Earth is an ocean planet.About three billion years ago,life on our planet began in the deep blue seas.Ninety-nine percent of the living space on earth is in the oceans.Marine life is incredibly rich and varied. There

发表于:2019-01-09 / 阅读(389) / 评论(0) 分类 高中英语听力人教版第二册

This is the VOA Special English Agriculture Report. A listener in Abuja, Nigeria, named Okorie wants to know more about fish pond farming. Bill Martin, president of Blue Ridge Aquaculture, with tanks of shrimp in Martinsville, Virginia Raising fish

发表于:2019-01-11 / 阅读(218) / 评论(0) 分类 VOA慢速英语2008年(十一)月

Plankton More Important than Scientists Thought 浮游生物比科学家认为的重要的多 For years, most people thought of small organisms called plankton as food for whales and other large sea animals. But a four-year long study discovered that

发表于:2019-01-12 / 阅读(177) / 评论(0) 分类 2015年VOA慢速英语(六)月

Let's look first. The fresh water that we depend on begins its life in the oceans. As the sun's rays beat down on the surface of the sea, they heat the water molecules until some evaporate. It's the start of an extraordinary journey. Here with water

发表于:2019-01-22 / 阅读(146) / 评论(0) 分类 自然百科2010年

Science and technology 科学技术 The Arctic 北极海域 Tequila sunset 龙舌兰日落 Global warming may make the northernmost ocean less productive, not more so 全球变暖对北极海域生产力的负面影响 ON SEPTEMBER 16th 2012, at the

发表于:2019-02-05 / 阅读(262) / 评论(0) 分类 经济学人科技系列

Eliminate fireplace odor There's nothing cozier on a cold winter night than a warm fire burning in the fireplace -- unless the fire happens to smell horrible. Next time you have a fire that sends a stench into the room, try throwing a few lemon peels

发表于:2019-02-06 / 阅读(235) / 评论(0) 分类 阅读空间

By Phil Mercer Sydney 20 February 2008 Scientists say they have taken an array of new marine species from the seabed off eastern Antarctica. They are warning, though, that climate change could soon make extinct many of the strange creatures they have

发表于:2019-02-06 / 阅读(204) / 评论(0) 分类 VOA常速英语2008年(二月)

Science and technology 科学技术 The Arctic 北极 Tequila sunset 龙舌兰日落 Global warming may make the northernmost ocean less productive, not more so 全球变暖可能降低最北部海域的活力,而不是使之更有生命力。 ON S

发表于:2019-02-18 / 阅读(214) / 评论(0) 分类 经济学人科技系列

The Minister for the Environment, Dr Nick Smith, said today that the government will spend money on controlling our fresh water and will make some important laws. New Zealand is number 3 in the world for the amount of water per person. We have many r

发表于:2019-02-25 / 阅读(233) / 评论(0) 分类 新西兰英语
学英语单词
academic bulemia
academist
actor-observer effect
agalasia
amino acid analysis
antherea mylitta
audit of revenues
automatic feed-rate control system
automatic short-circuit protection
bailor's property insurance
balmy breeze
bentine
berwind
bona fide possessor
borax liner
cam lobe material
Casque-Headed
chaters
Chloriridovirus
conjugate glide
crude geraniol
cul8r
dafa
density method
deportation ordinance
Diocleinae
diode voltage regulator
dogginess
dumous
educatedness
fast-drying
flue gas leading
giveout
Glutamine-Hydrolyzing
Grossschönbrunn
half-somersault
hearteners
highet
horsebrass
iceball
indium arsenide phosphide
inherent grain size
insubmissive
International Federation of Freight Forwarders Association
inverse of weight matrix
janene
kla-tencor
lab-to-fab
Lallans
laser gyroscope axis
loss-of-field protection
marcottages
mcclard
medicine treatment
MICROANEMIA
microbomb
micrococcus gonorrhoecae
milking of daughter activity
moljodol
multiple personality
Mursley
Myristica surinamensis
nonhermeneutical
normed deposit account
not-out
opendocument
outlay for liquidation
overcarriage
overriding-type clutch
phase change cooling
phosphate of lime
quarter-wave choke
quasi action in rem
radioactive wastwater
rectal
residual strength
return control word
Salairskiy Kryazh
scalp disease
schistosities
sectional-drawing
selective forward error correction
sliding dog clutch
split-objective heliometer
sportiver
srmsr
stock down
student teaching log
subpolar air
surveyors-general
thoriated emitter
trapezoidal filtering
Truebies
truth request
tunica conjunctiva
vestite
Vietic
wagonlike
warm-up oil gun
wire needle
work-oriented
Wutaian stage