Salt Lakes of the World The most famous salt lake in the world is the Dead Sea, in the Middle Eart. Water is lost into the air because of the heat of the sun, and the salt stays in the lake. It is also very lowlying, at around 395 metres below sea level. However, it is not the saltiest lake in the world. The Great Salt Lake in the USA, with 270 parts of salt per thousand, is even saltier. The water of the Dead Sea contains about 250 parts of salt to every thousand parts of water, or 25% by weight. It is so salty that it is difficult to swim or dive, as your body floats on the surface. What has made this lake so salty? The minerals are partly supplied by hundreds of natural springs which flow into the Dead Sea, and partly by the River Jordan. It is called the Dead Sea because very few things can live in such salty water. There is very little rain here, merely 60mm in a year on average. The minerals stay in the lake, because there is no river flowing out of the lake. 此文描述了世界两大盐湖形成的原因,以及盐湖中所含的成份,是一篇非常好的背景材料,可供读者在写有关文章时引用。 世界上的咸水湖 世界上最有名的咸水湖是中东的死海。由于太阳酷热,水变成了水蒸汽,而盐分仍留在湖中。这里的地势也很低,约低于海平面395米。然而死海并不是世界上最咸的咸水湖。美国大盐湖的水还要咸一些,每千份水中含有270份盐。 死海中的水每千份水里含有250份盐,或者说按重量计占25%。湖水太咸了,很难游泳或潜水,因为你的身体会浮在水面上。是什么东西使得湖水这样咸呢?是各种矿物质。它的部分来自众多的流入死海的天然泉水,部分来自约旦河。这个咸水湖之所以称作死海,是因为在这样咸的水中几乎没有什么东西能够生存。这儿雨水极少,平均每年只有60毫米。因为湖水不能通过江河流出去,所以矿物质就沉积在湖中了。
国内英语资讯:Metasequoia fossil discovered in southwest China
体坛英语资讯:Role of running cadence not as much as previously thought
国际英语资讯:Malaysia, Singapore reach agreement on settling airspace dispute
国内英语资讯:China moves to boost SME growth
体坛英语资讯:Ruiz stuns Joshua to become world heavyweight champion
国内英语资讯:China sees 112 mln domestic tourist trips during tomb-sweeping holiday
国内英语资讯:Chinas booming middle class creates opportunities for culture, entertainment industry: bus
国内英语资讯:Chinas NPC delegation visits Armenia
A Surprise From Fathers Day 父亲节的惊喜
各国如何纪念逝去的人?
体坛英语资讯:Sun Yang records personal fastest 1,500m freestyle in four years
回到上新世?气候变化或让南极洲变“绿洲”
体坛英语资讯:Shandong Luneng beat Tianjin Tianhai 4-2 at Chinese Super League
微软要求政府向他们多收税,难道是嫌自己钱多?
国内英语资讯:East China city to open direct flights to Tokyo, Seoul
这些坏习惯会破坏你们的感情
人过50岁会后悔什么?
体坛英语资讯:Strasbourg claim French League Cup title over Guingamp through penalty shootout
汉堡王正面叫板星巴克,但这价格有点怪
国内英语资讯:China to avoid debt burden for BRI participating countries: envoy
国际英语资讯:Fatal car-train crash causes 2 dead in New Zealand
体坛英语资讯:CBA Roundup: Liaoning sweep Fujian into CBA semi, Zhejiang pull one game back against Xinjia
国际英语资讯:Pakistan warns India over alleged plans of possible military action
国际英语资讯:North Macedonia ready to face increased pressure at border with Greece: official
体坛英语资讯:Philippine Wushu players to train in China for SEA Games
国际英语资讯:Earthquake off Japans Yamagata Prefecture revised to 6.7 magnitude, tsunami warning lifted
四口之家的预算建议: 理财方式发生了巨变
国内英语资讯:Around 9.78 mln people honor deceased at cemeteries during tomb-sweeping holiday
国内英语资讯:China textile overseas investment flows to BRI region
国际英语资讯:World Economic Forum MENA 2019 calls for collaboration to face regional challenges
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |