step by step3000第三册unit9答案及原文

英语专业学生经典的听力材料 Unit 9 ways to Travel Part I Warming up A

1. This news item is about Boeing's 18 billion new orders this year for its new 777 jetliner.

2. This news item is about possible mergers between airlines. A2

Tapescript:

1. Boeing, the world's leading commercial airplane maker, announced it has 18 billion dollars in new orders this year for its new 777 jetliner. This figure puts demand for the Boeing aircraft ahead of comparable models produced by rival Airbus of Europe.

2. British Airways and Dutch carrier KLM confirm they are in act of merger talks. Swiss Air won approval for taking majority control of Belgium's Sabena Airlines and there was another flurry of take-over discussions among some major American carriers. They come on the heels of number one United Airlines' offer to buy number six U. S. Airways two weeks ago. The nation's number two, American Airlines, and the country's third largest, Delta, have been having what are

described as preliminary discussions about a possible combination. American had reportedly been talking with Northwest about a hook up as well. The top three U.S. airlines, United, American and Delta currently control 56 percent of U.S. air traffic. If the mergers go through, they'd control 85 percent. B Monorail

1. Monorail systems rely on a very simple technology: rubber-tired cars riding on a narrow concrete guide-way.

2. Monorail systems are capable of speeds of 65 miles per hour and offer ride quality comparable to conventional rail transit technologies. 3. Monorail systems are safe and more environmentally sensitive than any other elevated transit technology.

4. And noise and neighborhood disruption caused by monorail construction are dramatically lower than other forms of mass transit. Maglev

1. One of the most exiting recent innovations in railroad technology is magnetic levitation, or Maglev, which relies on the principle of magnetism -- attraction and repulsion.

2. This new technology will result in trains that are faster, smoother, more

efficient, more comfortable, and more environmentally sound. Light Rail

1. Light rail transit is an electric railway system characterized by its ability to operate single cars or multi-car trains along shared or exclusive rights-of-way at ground level, on aerial structures, in subways, or occasionally in streets.

2. It is able to board and discharge passengers at station platforms or at street, track, or car-floor level, and is normally powered by overhead electrical wires.

3. The maximum speed of light rail trains is normally 60 miles per hour (100 km per hour).

4. Passenger capacity of each car in a multiple car consist can be up to as many as 250 passengers (standees included). Tapescript: 1. Monorail

Monorail systems rely on a very simple technology: rubber-tired cars riding on a narrow concrete guide-way. The cars are self propelled by electric motors with power pickup via distribution bars mounted on the side of the guide-way. Monorail systems are capable of speeds of 65 miles per hour and offer ride quality comparable to conventional rail transit technologies.

Monorail systems are safe because the design and nature of monorail

systems make it very difficult for trespassers to access the guide-way and power rails.

Monorail systems are more environmentally sensitive than any other elevated transit technology due to the monorail's narrow guide-way structure and quiet rubber tires. Also, since many of the pylon and rail components can be prefabricated elsewhere and then assembled along the routes, the noise and disruption of construction will be kept to a minimum. Thus, noise and neighborhood disruption caused by monorail construction are dramatically lower than other forms of mass transit. 2. Maglev

One of the most exiting recent innovations in railroad technology is magnetic levitation, or Maglev, which relies on the principle of magnetism- attraction and repulsion. This new technology, still under development, will result in trains that are faster, smoother, more efficient, more comfortable, and more environmentally sound. No longer will trains rumble heavily along steel rails; rather, they will float along a magnetic cushion without any direct contact with the ground. 3. Light Rail

Light rail transit is an electric railway system, constructed in the 1970s or later, characterized by its ability to operate single cars or multi-car trains along shared or exclusive rights-of-way at ground level, on aerial structures, in subways, or occasionally in streets. It is able to board and