CNN News: 路易斯安那州500年不遇大洪水 数万人撤离已知11人丧生

Hi. I`m Carl Azuz. Just two days from the weekend, we`ve got a lot of interesting reports lined up for you today on CNN STUDENT NEWS.

大家好，我是卡尔·阿祖兹。还有两天这周就结束了，今天的CNN新闻有很多有趣的事情需要报道。

One story we`ve been following this week is the historic flooding in the U.S. state of Louisiana. A by the numbers look helps us explain how bad it is, especially in Southern Louisiana.

这周我们追踪的一则报道是关于美国路易斯安那州发生的历史性的洪灾。数多景象能让我们知道路易斯安那州南部的灾情是有多严重。

Six-point-nine trillion, that`s the number of gallons of rain that started all this, between August 8th and August 14th. Livingston Parish in particular got more than 31 inches of rain in just one day.

在8月8号到8月14日，共降雨6.9亿万加仑。特别是利文斯顿仅一天降雨就达31英寸。

Forty thousand, that`s the number of homes that had been damaged, in what Louisiana governor calls a major disaster. Twenty thousand, the number of people who`ve been rescued so far. Eleven deaths have been blamed on the floods across the state.

其中约与4.5万所房屋被毁，路易斯安那州州长表示，这是重大灾难。目前为止，共有2万人被救。11人死亡。

Five hundred years, the likelihood that a flood this catastrophic would occur in the Baton Rouge. It means once every 500 years.

五百年前，巴吞鲁日发生了类似灾难性的洪水事件，这意味着，此类事件每500年发生一次。

And finally, 12, the number of Louisiana parishes that had been declared federal disaster areas. That speeds up federal government assistance to them. More than 12 other parishes may also get this declaration.

最后，共有12个路易斯安那州的教区已经成为联邦灾区。联邦政府加速救援。现在教区灾区数量已经超过12个。

We touched on the definition of flash floods the other day. Jennifer Gray now explores what makes this flood so dangerous.

我们提到了洪水的定义。气象学家格雷现在像我们解释此次洪水的危险性。

In the U.S., flash floods kill more people than tornadoes, hurricanes or lighting. A flash flood creates a rush of moving water than can sweep a grown man off his feet, a car off the road and even your entire home off its foundation.

在美国，与龙卷风、闪电相比，死于洪水的人的数量更多。突如其来的洪水可以冲走成年男子、汽车、甚至将房屋也连根冲走。

When the ground becomes so saturated that water can no longer seep in to the soil, it begins to run off quickly into rivers and streams and this causes a rise in water and a flash.

当地面饱和后，水不能再渗入地表，因此洪水迅速流入河流和小溪，导致水位上涨，最终导致洪水。

Densely populated areas have an extremely high risk of flash flooding with additional concrete than less grassy areas for the water to soak into the soil. And they can see flash flooding very quickly. In mountainous terrain, the combination of gravity, plus the easy runoff can lead to catastrophic flooding when all of that water is funneled into rivers, creeks and even the valleys.

人口密集区，由于混凝土多、而可吸收水的草坪少，因此洪水事件较多。同时，会迅速发生洪水事件。在山区，重力以及径流会导所有的水注入河流,小溪,甚至山谷，从而引发灾难性的洪水事件。

Remember, flash flooding can happen in a blink of an eye. That`s why it`s important to stay alert and pay attention in case a flash flood watch or warning is issued for your area.

记住，突发洪水只是眨眼之间。这就是为什么需要保持警惕并注意检测突发洪水以及警报。