美国科学60秒-SSS 2015-06-24
时间：2018-12-24 作者：英语课 分类：2015年Scientific American(六)月
This is Scientific American-60 Seconds Science.I’m Julia Roson.Got a minute?The world’s mountain glaciers 2 contain just 1%of all the ice on earth.But their rapid melting accounts for about a third season sea level rise.Most of these glaciers that started on land shrink away gradual surface melting.But others know it terra-water glaciers flow out into the sea and by caving out massive icebergs 3.These glaciers can clapse in a bleak 4 of eye.Geologically speaking,for example,the Columbia glacier 1 in the Glasgow *.It is a terra-water glacier that once failed along field,it should treat 12 miles in just the last 25years.So this tiny little glacier in the Glasgow capable of producing 1%of the sales rise budget.And so we know that individual caring glaciers can do crazy things,can actually dramatically can have this rapid response * ,a glaciologist with the US geological survin incurage and core other new studies in a journal geographical 5 research letter.Scientists stop the terrra-water glaciers because of its unstable 6 behavior might be an important source of the terra-water flowing out of Glasgow and West Canada for ice disappearing in special alarming rates.But all mountain glacier ,terra-water and other ice are notoriously hard to quantify.So * his colleagues undertook the daunting 7 task of accessing of every glacier in the region.It is a date-collect from air planes that they treck hard messages about 116 glaciers making up 41% of Glasgow ice covered area changed during 2 decades.Then they use similarities in the shape,size and location of the remaining 27,000 glaciers to estimate how those change,too.The results surprised them.Terra-water glaciers accounted for just 6%of the region’s total ice source.The vast majority came from the surface melting of glaciers that second place on land.”So your initial response is wow!This is great.The rerra-water glaciers actually are doing now much in Glasow.””That sounds like good news.Because terra -water glaciers can shed a lot of ice really quickly.But scientists suspect that sea level contribution of terra-water glacier is going to wane 8 down near future if they retrieve 9 *onto land.But the surface melt part is going to decrease.What we all know drives most of the region’s ice loss.It means that while we have more certainly about what’s happening ,we also ,that means more certainly that the Glasow’s contribution can stay the same growth,if climate continues to warm.Thanks for the minute for Scientific American-60 seconds science,I’m Julia Roson.
- The glacier calved a large iceberg.冰河崩解而形成一个大冰山。
- The upper surface of glacier is riven by crevasses.冰川的上表面已裂成冰隙。
- Glaciers gouged out valleys from the hills. 冰川把丘陵地带冲出一条条山谷。
- It has ice and snow glaciers, rainforests and beautiful mountains. 既有冰川，又有雨林和秀丽的山峰。 来自英语晨读30分（高一）
- The drift of the icebergs in the sea endangers the ships. 海上冰山的漂流危及船只的安全。 来自《简明英汉词典》
- The icebergs towered above them. 冰山高耸于他们上方。 来自辞典例句
- They showed me into a bleak waiting room.他们引我来到一间阴冷的会客室。
- The company's prospects look pretty bleak.这家公司的前景异常暗淡。
- The current survey will have a wider geographical spread.当前的调查将在更广泛的地域范围內进行。
- These birds have a wide geographical distribution.这些鸟的地理分布很广。
- This bookcase is too unstable to hold so many books.这书橱很不结实，装不了这么多书。
- The patient's condition was unstable.那患者的病情不稳定。
- They were faced with the daunting task of restoring the house.他们面临着修复房子的艰巨任务。
- Starting a new job can be a daunting prospect.开始一项新工作有时会让人望而却步。