美国有线新闻 CNN 2013-05-21

 A king size conundrum¹ ruins ruined, twins who were both first. That's all coming up this Thursday edition of CNN Student News.

We start with the thread of the severe weather. The tropical cyclone², which is the same kind of storm as hurricane. And the United Nation's agency says more than 8 million people in Bangladesh and Myanmar could be in danger from this one. The storm is moving through the bay Bengal, forecaster say it will hit land late today or early Friday. When it does, it's expected to bring strong winds and very heavy rain. Authorities in 8 groups were trying to help people prepare before this thing hits. One official says it's really a race against time.

The storms have different names based on what part of the world they are in. Ivan Cabrera has more that explains some of the sizes behind them.

--A tropical cyclone is a area of low pressure that forms in the tropical regions of the world.

Cyclone is actually very important, even though, of course, they can be deadly. They help essentially³ balance out the temperature across the globe. They are an equalizer, so they take the heat energy from the tropics and they translate that what we needed into the colder climates.

The generic⁴ term for it is a tropical cyclone that can refer to any cyclone that has closed centres circulation, anywhere in the world like Atlantic, when they get strong enough to a certain wind speed, we call it hurricanes. But if you're in the west Pacific, a hurricane is called typhoon. There is no difference between hurricane and typhoon except the name, they're both tropical cyclones⁵.

Next up today, anger. To buy the materials being used to build roads, specifically where the materials came from, a pyramid. This happened in the centre American country Belize. The northern part of this nation was home to Mayan civilizations thousands pf years ago. Those civilizations include pyramids that look like this one. Some of them are still standing⁶ like one that was the centre of a settlement around 250 B.C.

The pyramids were more than 60 feet tall. I say was. This is what's left of that Mayan pyramid. Someone caming with buddles used to destroy it. So they can use limestone⁷ from the pyramid as the road building material. The pyramid is on private land, but there are laws in Belize that protect these ancient ruins. Local official says who ever responsible should be prosecuted⁸. A local archeologist called the pyramid destruction an incredible display of ignorance.

Predicting a volcano curruption has been an exact science, otherwise things might turned out differently in Pompeii. Today volcanologist can use instruments to mointer a mountain. They can study its eruptive history, they can keep watch on trimmers in the grounds around it.

But one sure fire sign of a volcano is up to something, it starts spewing lava⁹. And that's what not one but two volcanos in Alaska are doing. Scientists are saying that there was little or no warning they can explode. Both Pavlov and Cleveland volcanos are in the illusion islands of the southwest coast of Alasks. In the case of Cleveland volcano, there are no ground instruments to moniter what's going on, because of the budgets cut. Full scale eruption¹⁰ was threaten air space and estimated 90 percent air freeze the travel from Asia to Europe, and north America, flys near Alaska. But these volcanos aren't major thread to people on the ground, because there aren't many people on the ground there. What is thread to people, a massive moutain in Mexico. The Popocatepetl volcano has been spewing ash and molten rock in recent days. Says it's only 40 miles from Mexico City, authorities are planning evacuation routes and shelters for people nearby, in case it blows its top.

1 conundrum   

n.谜语；难题

参考例句：

• Let me give you some history about a conundrum.让我给你们一些关于谜题的历史。
• Scientists had focused on two explanations to solve this conundrum.科学家已锁定两种解释来解开这个难题。

2 cyclone   

n.旋风，龙卷风

参考例句：

• An exceptionally violent cyclone hit the town last night.昨晚异常猛烈的旋风吹袭了那个小镇。
• The cyclone brought misery to thousands of people.旋风给成千上万的人带来苦难。

3 essentially   

adv.本质上，实质上，基本上

参考例句：

• Really great men are essentially modest.真正的伟人大都很谦虚。
• She is an essentially selfish person.她本质上是个自私自利的人。

4 generic   

adj.一般的，普通的，共有的

参考例句：

• I usually buy generic clothes instead of name brands.我通常买普通的衣服，不买名牌。
• The generic woman appears to have an extraordinary faculty for swallowing the individual.一般妇女在婚后似乎有特别突出的抑制个性的能力。

5 cyclones   

n.气旋( cyclone的名词复数 )；旋风；飓风；暴风

参考例句：

• The pricipal objective in designing cyclones is to create a vortex. 设计旋风除尘器的主要目的在于造成涡旋运动。 来自辞典例句
• Middle-latitude cyclones originate at the popar front. 中纬度地区的气旋发源于极锋。 来自辞典例句

6 standing   

n.持续，地位；adj.永久的，不动的，直立的，不流动的

参考例句：

• After the earthquake only a few houses were left standing.地震过后只有几幢房屋还立着。
• They're standing out against any change in the law.他们坚决反对对法律做任何修改。

7 limestone   

n.石灰石

参考例句：

• Limestone is often used in building construction.石灰岩常用于建筑。
• Cement is made from limestone.水泥是由石灰石制成的。

8 prosecuted   

a.被起诉的

参考例句：

• The editors are being prosecuted for obscenity. 编辑因刊载污秽文字而被起诉。
• The company was prosecuted for breaching the Health and Safety Act. 这家公司被控违反《卫生安全条例》。

9 lava   

n.熔岩，火山岩

参考例句：

• The lava flowed down the sides of the volcano.熔岩沿火山坡面涌流而下。
• His anger spilled out like lava.他的愤怒像火山爆发似的迸发出来。

10 eruption   

n.火山爆发；（战争等）爆发；（疾病等）发作

参考例句：

• The temple was destroyed in the violent eruption of 1470 BC.庙宇在公元前1470年猛烈的火山爆发中摧毁了。
• The eruption of a volcano is spontaneous.火山的爆发是自发的。