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环球英语 — 342:Space Travel

时间:2011-09-20 09:16来源:互联网 提供网友:fei   字体: [ ]
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  Voice 1
Thank you for joining us for today’s Spotlight1. I’m Joshua Leo.
Voice 2
And I’m Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live.
Voice 1
When you look up into the night sky are you filled with wonder? Do you see the stars and planets3 and ask, “What is outer space like? Is there life on other planets? Could we someday fly among the stars?” If so, you are not alone. As long as people have been on earth, they have looked into the sky with wonder.
Voice 2
For most of history, space travel was only a dream. It was not until 1961 that the first human travelled into space. It cost a lot of money to send someone into space. Because of this, for the next forty-seven [47] years space travel was limited to government programs.
Voice 1
During this time, only a few people went into space. These astronauts and cosmonauts were very skilled4 pilots. They had years of training. Average people could only dream of travelling into space.
Voice 2
But today space travel is changing. It is beginning to cost less. Soon, space travel will not just be for trained pilots. It will be for anyone who can pay for it. There are several private companies that are trying to make space travel possible for anyone. One such company is called Virgin5 Galactic.
Voice 1
Virgin Galactic will not take a person to the moon. But it will take him on a very special trip. The trip is a suborbital space trip. It will not move beyond earth’s gravity. The ship will stay close to earth. But passengers will still get to experience much lower gravity than on earth. They will float in the air. This is “zero gravity.”
Voice 2
The trip begins with three days of training. Eight people fly together in the spaceship. Together, they learn to manage being in zero gravity. They prepare for the feeling of launch6 and landing7. They use this time to prepare for one of the most exciting events of their lives: travelling into outer space.
Voice 1
The Virgin Galactic trip starts in a special launch area in the Mojave Desert in the United States. The spaceship is attached to the bottom of a larger airplane. The larger airplane carries the spaceship high into the sky.
Voice 2
This smaller ship is then released8 from the large airplane. A rocket engine pushes the spaceship at four thousand [4,000] kilometres an hour. The spaceship reaches one hundred [100] kilometres above the earth. This burst of speed lasts only ninety [90] seconds but the spaceship will reach three times the speed of sound.
Voice 1
The ship is now out of the earth’s atmosphere. The rocket stops, and the ship slows. It is very quiet. At this point, the passengers are free to leave their seats. They can move around the ship and float through the air. They are able to see the earth from above. They can take pictures of the other passengers and of the earth.
Voice 2
Passengers float in the air for only five minutes. After this, the pilot will ask passengers to return to their seats. Then the ship begins to fall back toward9 earth. The ship lands the same way airplanes do.
Voice 1
Virgin Galactic describes the experience of flying in space this way, “Below you is an image that is more beautiful that you can imagine. It is a blue and green map, but it lacks human-made lines between countries. You are looking at the place that supplies everything humans need. It is part of what it means to be human. It is our home.”
Voice 2
In the past, people who were not astronauts have gone into space. But only a few people have enough money to pay for it. A trip to the international space station costs between twenty five [25,000,000] and forty million [40,000,000] dollars.
Voice 1
A Virgin Galactic trip costs much less. It costs two hundred thousand [200,000] dollars. A suborbital trip may be less time in space, but it costs much less money than a trip to the international space station.
Voice 2
Two hundred thousand [200,000] dollars is still a lot of money. But as more people begin to fly into space, more companies will begin to offer suborbital trips. This will lower the cost of travelling into space.
Voice 1
A suborbital trip is not only about giving passengers an amazing experience. There are issues here on earth that these trips may help. The desires of the rich will pay for the trips. But these spaceships can be used to help peoples all around the world.
Voice 2
These suborbital trips will reduce the cost of satellites. Today, launching10 satellites into space costs eighty million [80,000,000] dollars. Using a suborbital ship will cost much less. And the cost savings11 will be seen in many areas.
Voice 1
Satellites are important to modern life. They make telephones work. They broadcast television signals and carry the Internet. With more satellites these things will be much less costly12. People from all around the world will be able to share information, knowledge, and culture.
Voice 2
People also use satellites to take pictures of weather systems. Knowing weather is important for people in high risk areas. More satellites create a better picture. Better pictures increase the warning time during a weather emergency.
Voice 1
Satellites can also be turned away from the earth. They can take pictures of far off planets and stars.
Voice 2
Also, suborbital trips can reduce the time it takes to travel around the world. Suborbital trips work with the earth’s rotation13, or turning. This means that one day people may be able to travel around the world in only ninety [90] minutes.
Voice 1
This could be very important for some sick people. Especially people waiting for a heart, lung, kidney14 or other organ. It will reduce the time an organ is transported from one doctor to another doctor. This would improve the chances of a good medical process.
Voice 2
And finally, it will reduce the time it takes to react to any emergency situations world-wide. For example, equipment for cleaning up oil spills could be transported in minutes instead of days.
Voice 1
Most important is the change that can happen to people on these trips. Virgin Galactic says this,
Voice 3
“Already, our limited travel in space has changed the way we live and think, from world-wide communications to a better understanding of climate change... When you return, you will know that life will never be the same.”
Voice 2
When a person returns she may find that she has a deep wonder toward our planet2. She may come back less concerned with her own life. She will no longer be able to see only her own corner of the planet. She will see that we are all part of something much larger. Many things seem to separate people. But everyone shares the same home: the earth.
 


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1 spotlight 6hBzmk     
n.公众注意的中心,聚光灯,探照灯,视听,注意,醒目
参考例句:
  • This week the spotlight is on the world of fashion.本周引人瞩目的是时装界。
  • The spotlight followed her round the stage.聚光灯的光圈随着她在舞台上转。
2 planet A26z1     
n.行星
参考例句:
  • Neptune is the furthest planet from the sun. 海王星是离太阳最远的行星。
  • Rubbish, however, is only part of the problem of polluting our planet. 然而, 垃圾只是我们这个星球的污染问题的一个方面。
3 planets f4ebb228cedc38a86b9e60ec64484492     
行星( planet的名词复数 ); 地球(尤指环境)
参考例句:
  • Does life exist on other planets? 其他行星上有生命吗?
  • the planets of our solar system 太阳系的行星
4 skilled 7iTzD3     
adj.(in)熟练的,有技能的;需要技能的
参考例句:
  • Unskilled workers usually earn less money than skilled workers.无技能的工人通常比有技能的工人挣钱少。
  • She was skilled enough in French to translate a novel.她法语娴熟,足以翻译小说。
5 virgin phPwj     
n.处女,未婚女子;adj.未经使用的;未经开发的
参考例句:
  • Have you ever been to a virgin forest?你去过原始森林吗?
  • There are vast expanses of virgin land in the remote regions.在边远地区有大片大片未开垦的土地。
6 launch b29xY     
vt.发动,推出;发射;n.发射,下水,投产
参考例句:
  • The makers are about to launch out a new product.制造商们马上要生产一种新产品。
  • Would it be wise to launch into this rough sea?在这样汹涌的大海中游泳明智吗?
7 landing wpwz3N     
n.登陆;着陆;楼梯平台
参考例句:
  • Owing to engine trouble,the plane had to make a forced landing.由于发动机出了毛病,飞机不得不进行迫降。
  • When are we landing?我们什么时候着陆?
8 released 23690fd759f17135ec9879b56ff2600c     
v.释放( release的过去式和过去分词 );放开;发布;发行
参考例句:
  • He was released on bail pending committal proceedings. 他交保获释正在候审。
  • With hindsight it is easy to say they should not have released him. 事后才说他们本不应该释放他,这倒容易。
9 toward on6we     
prep.对于,关于,接近,将近,向,朝
参考例句:
  • Suddenly I saw a tall figure approaching toward the policeman.突然间我看到一个高大的身影朝警察靠近。
  • Upon seeing her,I smiled and ran toward her. 看到她我笑了,并跑了过去。
10 launching fbd29b7abab1d8c7e65e9bcae8278426     
n.(火箭等的)发射;(船的)下水(典礼);发动;发行v.发射( launch的现在分词 );[计算机]开始(应用程序);发动;开展(活动、计划等)
参考例句:
  • They are launching out into a series of scientific experiments. 他们正在着手进行一系列科学试验。 来自《简明英汉词典》
  • John is launching his son on a career in banking. 约翰打算让儿子在银行界谋一个新职位。 来自《简明英汉词典》
11 savings ZjbzGu     
n.存款,储蓄
参考例句:
  • I can't afford the vacation,for it would eat up my savings.我度不起假,那样会把我的积蓄用光的。
  • By this time he had used up all his savings.到这时,他的存款已全部用完。
12 costly 7zXxh     
adj.昂贵的,价值高的,豪华的
参考例句:
  • It must be very costly to keep up a house like this.维修这么一幢房子一定很昂贵。
  • This dictionary is very useful,only it is a bit costly.这本词典很有用,左不过贵了些。
13 rotation LXmxE     
n.旋转;循环,轮流
参考例句:
  • Crop rotation helps prevent soil erosion.农作物轮作有助于防止水土流失。
  • The workers in this workshop do day and night shifts in weekly rotation.这个车间的工人上白班和上夜班每周轮换一次。
14 kidney k2wxy     
n.肾,腰子,类型
参考例句:
  • Several of the patients had received kidney transplant.病人中有几位已接受了肾移植手术。
  • The operation to transplant a kidney is now fairly routine.肾脏移植手术如今已相当常见。
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