地层水矿化度

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 salinity. One of these is the

发表于:2018-11-28 / 阅读(332) / 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(113) / 评论(0) 分类 人教高中英语高二

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

发表于:2018-12-15 / 阅读(241) / 评论(0) 分类 新东方背诵文选

Rising Sea Levels Endanger Senegalese Islands 海平面上升威胁塞内加尔岛屿 Senegal's Saloum Delta region is an egregious example of how rising sea levels caused by global warming endanger coastal communities around the world. Mangrove fore

发表于:2018-12-16 / 阅读(105) / 评论(0) 分类 VOA标准英语2015年(十二月)

干旱与战火威胁伊拉克湿地 Iraq's southern wetlands are in crisis. These areas are the spawning ground for Gulf fisheries, a resting place for migrating wildfowl, and the source of livelihood for fishermen and herders who have called the ma

发表于:2018-12-19 / 阅读(115) / 评论(0) 分类 VOA双语新闻 2015年9月

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 salinity. One of these is the

发表于:2018-12-30 / 阅读(146) / 评论(0) 分类 考研背诵50篇

I now know that there is a happy abundance of science writers who pen the most lucid and thrilling prose. 现在,我知道有好多好多科普作家,他们写出了通俗易懂而又激动人心的散文--Timothy Ferris, Richard Fortey, and Tim

发表于:2019-01-01 / 阅读(98) / 评论(0) 分类 万物简史

And ocean salinity of course represented only the merest sliver of my ignorance. 当然,海水的咸度只是我不知道的事情中的极小部分。 I didn't know what a proton was, or a protein, didn't know a quark from a quasar,我不知道什么

发表于:2019-01-01 / 阅读(102) / 评论(0) 分类 万物简史

[00:00.00]Seahorse Fathers Take Reins in Childbirth [00:04.96]Its true that male seahorses never play catch with their children [00:11.31]or help them with their homework. [00:13.28]But they do outdo human dads on one count. [00:16.89]Male seahorses

发表于:2019-01-02 / 阅读(107) / 评论(0) 分类 晨读英语美文60篇

Environment, economy, elections, education, all E words and all part of these Monday edition of CNN Student News. From CNN center, Im Carl Azuz. First up, officials are moving on to Plan C to try to stop the oil thats gushing into the Gulf of Mexico.

发表于:2019-01-08 / 阅读(175) / 评论(0) 分类 CNN2010年(五)月

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(130) / 评论(0) 分类 英语小短文

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(278) / 评论(0) 分类 高中英语听力人教版第二册

Dutch Experiment Grows Vegetables in Sea Water 荷兰人试验在海水中种植蔬菜 Climate change has caused a rise in sea levels. This has increased the amount of salt in fresh water used on coastal farms. As a result farmers are increasingly un

发表于:2019-01-12 / 阅读(91) / 评论(0) 分类 2014年VOA慢速英语(十一)月

By Jessica Berman Washington 29 May 2008 As the newly deployed Phoenix spacecraft begins its mission in search of life near Mars' northern pole, scientists say an analysis of Martian deposits suggest there was once water on the planet, but it was too

发表于:2019-01-13 / 阅读(104) / 评论(0) 分类 VOA标准英语2008年(五月)

Will There be Enough Water for Everyone? As the global population grows, so does the need for water. The Worldwatch Institute says increased demands for food, energy and industry, along with climate change, could lead to water scarcity in some places

发表于:2019-01-14 / 阅读(115) / 评论(0) 分类 VOA标准英语2013年(三月)

Oceanographer Jack Barth has had plenty of bumpy rides off the Oregon coast, launching and retrieving these underwater gliders. From April to October, they gathered data to help answer questions about the hell of the world's oceans. Alright, buddy, w

发表于:2019-01-22 / 阅读(133) / 评论(0) 分类 自然百科2010年

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(109) / 评论(0) 分类 英语新闻

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(102) / 评论(0) 分类 万物简史

Oceans are the real powerhouse of the planet's surface behavior. 海洋是地球表面活动的真正动力源泉。 Indeed, meteorologists increasingly treat oceans and atmosphere as a single system, which is why we must give them a little of our at

发表于:2019-02-25 / 阅读(120) / 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(185) / 评论(0) 分类 双语有声阅读
学英语单词
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Lyubomirovka
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