[生态] 淡水生态学

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(530) / 评论(0) 分类 新概念优美背诵短文50篇

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(180) / 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(147) / 评论(0) 分类 VOA2003(上)-社会广角

[00:01.94]Fresh water [00:03.71]Rivers, lakes and wet-lands are sources [00:06.23]of fresh water,not only for humans, [00:08.50]but for wildlife too. [00:10.35]Due to pollution and climate change, [00:12.60]about 50% of the world's fresh water habita

发表于:2018-12-13 / 阅读(180) / 评论(0) 分类 北师大版高中英语模块8(选修)

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(169) / 评论(0) 分类 新东方背诵文选

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(132) / 评论(0) 分类 考研背诵50篇

AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster: more of our interview with Rob Jackson, director of the Global Change Center at Duke University with some terms you're likely to hear in the climate change debate. RS: We start wi

发表于:2018-12-30 / 阅读(150) / 评论(0) 分类 词汇大师(Wordmaster)

Rome's savagery was matched by its size. When the Colosseum was built, Rome was a city of a million people and growing. Not until London of the 19th century would a city approach this size again. What

发表于:2018-12-31 / 阅读(183) / 评论(0) 分类 罗马的崛起

Water is the

发表于:2019-01-02 / 阅读(214) / 评论(0) 分类 知性英语

Todd: Trevor, do you like the beach? Trevor: I love the beach. The beach is great. Todd: OK. Why do you love the beach? Trevor: It's nice fresh air, beautiful water, you can play in the sand, and my hobby is surfing, so I like to go surfing. Todd: Oh

发表于:2019-01-02 / 阅读(134) / 评论(0) 分类 英语访谈对话

By Mario Ritter Broadcast: October 7, 2003 This is Doug Johnson with the VOA Special English Agriculture Report. Today we finish a two-part series. A listener in Brazil asked about 1)agroecology. This

发表于:2019-01-02 / 阅读(203) / 评论(0) 分类 VOA2003(下)-农业与经济

By Mario Ritter Broadcast: September 30, 2003 This is Steve Ember with the VOA Special English Agriculture Report. This week, we take a suggestion from a listener in Brazil. Agricultural specialist Lu

发表于:2019-01-04 / 阅读(181) / 评论(0) 分类 VOA2003(下)-农业与经济

This is a glimpse of what may be the future of urban living. It's called Noah, a fully sustainable floating habitat designing to support thousands of people. The idea comes from Architect Kevin Schafer. He says he was inspired by the destruction of N

发表于:2019-01-07 / 阅读(133) / 评论(0) 分类 万花筒2011年

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(110) / 评论(0) 分类 自然百科2010年

A big,black crow wanted to drink some water.She saw a big jug with some water at the bottom,but she could not reach the water.I know,she said,I shall put some stones into the jug.Then the water will come up to the mouth. After the fir

发表于:2019-02-04 / 阅读(154) / 评论(0) 分类 趣味英语

英国达人秀评委David Williams和美国喜剧(comedy)男星Ben Stiller对口相声(cross talk),笑说英美大不同,既有语言笑点也有借幌吐槽(spitslot),中枪名单:Stiller本人、小布什、默多克、皮尔斯摩根、哈利

发表于:2019-02-05 / 阅读(168) / 评论(0) 分类 英语万花筒

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(182) / 评论(0) 分类 阅读空间

Lesson 25 The Herring 第25课 鲱鱼 Herrings are a kind of fish that live in the sea. They like salt water. Indeed if they are put into fresh water, they soon die. Now the gold-fish which we read about the other day likes fresh water, and it would

发表于:2019-02-13 / 阅读(171) / 评论(0) 分类 英国学生科学读本

AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster: more of our interview with Rob Jackson, director of the Global Change Center at Duke University with some terms you're likely to hear in the climate change debate. RS: We start wi

发表于:2019-02-14 / 阅读(125) / 评论(0) 分类 英语单词大师-Word Master

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(181) / 评论(0) 分类 新西兰英语
学英语单词
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