2006年VOA标准英语-Shuttle Astronauts Perform Second Spacewalk

By David McAlary
Washington
10 July 2006

U.S. space shuttle astronauts are on their second spacewalk in three days, acting¹ as orbiting mechanics at the International Space Station. They are making repairs to the outpost's cooling system and its railroad flatcar.

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In this NASA TV image, astronaut Piers² Sellers exits Quest airlock at beginning of second spacewalk Monday  
  
Monday's spacewalk by shuttle Discovery astronauts Mike Fossum and Piers Sellers lacks the theater of their Saturday venture, when they bounced and twisted at the end of a 30-meter long pole like circus high-wire performers to test its stability as a platform to make shuttle repairs in orbit.

For this outing, they are continuing more mundane³ maintenance they began Saturday on the space station's rail car, which rolls back and forth⁴ to position the outpost's mechanical arm during construction. They are replacing a backup cable that delivers power, video, and data to the car. It was inadvertently severed⁵ by a cable cutter in December.

The two astronauts are also replacing a spare external pump on the station's cooling system.

As the two men prepared to float out of the station for their work, Fossum joked about being afraid to go out into the dark. Sellers spoke⁶ of a way to scare him.

"I have got time to get outside, put on my alien costume, and wait for Mike to come out," he joked.

The Discovery team is due back to Earth next week to end a 13-day mission that is delivering cargo⁷ and a third crew member to the space station, German astronaut Thomas Reiter.

The flight has also been a test of changes the U.S. space agency NASA made to the shuttle's external fuel tank to minimize the amount of hard insulating foam⁸ it sheds during launch. Such foam punctured⁹ the wing of the shuttle Columbia in 2003, dooming¹⁰ it to a fiery¹¹ disintegration¹² during its re-entry into the atmosphere.

For Discovery's flight, ground controllers have used new in-flight inspection¹³ equipment to look over the orbiter's fragile heat shield. They have found no damage that would prevent Discovery's safe return, so they told astronaut Stephanie Wilson and her five shuttle colleagues that they are cleared for re-entry.

"We have been told we have a very clean vehicle and I certainly have no concerns about returning," she said.

1 acting   

n.演戏，行为，假装；adj.代理的，临时的，演出用的

参考例句：

• Ignore her,she's just acting.别理她，她只是假装的。
• During the seventies,her acting career was in eclipse.在七十年代，她的表演生涯黯然失色。

2 piers   

n.水上平台( pier的名词复数 )；（常设有娱乐场所的）突堤；柱子；墙墩

参考例句：

• Most road bridges have piers rising out of the vally. 很多公路桥的桥墩是从河谷里建造起来的。 来自辞典例句
• At these piers coasters and landing-craft would be able to discharge at all states of tide. 沿岸航行的海船和登陆艇，不论潮汐如何涨落，都能在这种码头上卸载。 来自辞典例句

3 mundane   

adj.平凡的；尘世的；宇宙的

参考例句：

• I hope I can get an interesting job and not something mundane.我希望我可以得到的是一份有趣的工作，而不是一份平凡无奇的。
• I find it humorous sometimes that even the most mundane occurrences can have an impact on our awareness.我发现生活有时挺诙谐的，即使是最平凡的事情也能影响我们的感知。

4 forth   

adv.向前；向外，往外

参考例句：

• The wind moved the trees gently back and forth.风吹得树轻轻地来回摇晃。
• He gave forth a series of works in rapid succession.他很快连续发表了一系列的作品。

5 severed   

v.切断，断绝( sever的过去式和过去分词 )；断，裂

参考例句：

• The doctor said I'd severed a vessel in my leg. 医生说我割断了腿上的一根血管。 来自《简明英汉词典》
• We have severed diplomatic relations with that country. 我们与那个国家断绝了外交关系。 来自《简明英汉词典》

6 spoke   

n.（车轮的）辐条；轮辐；破坏某人的计划；阻挠某人的行动 v.讲，谈（speak的过去式）；说；演说；从某种观点来说

参考例句：

• They sourced the spoke nuts from our company.他们的轮辐螺帽是从我们公司获得的。
• The spokes of a wheel are the bars that connect the outer ring to the centre.辐条是轮子上连接外圈与中心的条棒。

7 cargo   

n.(一只船或一架飞机运载的)货物

参考例句：

• The ship has a cargo of about 200 ton.这条船大约有200吨的货物。
• A lot of people discharged the cargo from a ship.许多人从船上卸下货物。

8 foam   

v./n.泡沫，起泡沫

参考例句：

• The glass of beer was mostly foam.这杯啤酒大部分是泡沫。
• The surface of the water is full of foam.水面都是泡沫。

9 punctured   

v.在（某物）上穿孔( puncture的过去式和过去分词 )；刺穿（某物）；削弱（某人的傲气、信心等）；泄某人的气

参考例句：

• Some glass on the road punctured my new tyre. 路上的玻璃刺破了我的新轮胎。 来自《简明英汉词典》
• A nail on the road punctured the tyre. 路上的钉子把车胎戳穿了。 来自《现代汉英综合大词典》

10 dooming   

v.注定( doom的现在分词 )；判定；使…的失败（或灭亡、毁灭、坏结局）成为必然；宣判

参考例句：

• Of course, it may all go horribly wrong in the end, dooming Obamacare altogether. 当然，他们的方案也可能都会背离初衷，从而注定将宣判奥巴马的医改计划死刑。 来自互联网

11 fiery   

adj.燃烧着的，火红的；暴躁的；激烈的

参考例句：

• She has fiery red hair.她有一头火红的头发。
• His fiery speech agitated the crowd.他热情洋溢的讲话激动了群众。

12 disintegration   

n.分散，解体

参考例句：

• This defeat led to the disintegration of the empire.这次战败道致了帝国的瓦解。
• The incident has hastened the disintegration of the club.这一事件加速了该俱乐部的解体。

13 inspection   

n.检查，审查，检阅

参考例句：

• On random inspection the meat was found to be bad.经抽查，发现肉变质了。
• The soldiers lined up for their daily inspection by their officers.士兵们列队接受军官的日常检阅。