China’s new bullet train is now the world’s fastest land vehicle (交通工具) China Rail-way Rolling Stock Corporation showed the production version of its magnetic levitation (磁悬浮) bullet train in Qingdao on Tuesday. State media says the train has a top speed of 373 mph. That speed doesn’t just make it the fastest train in the world, but makes it the fastest land vehicle. The bullet train is able to travel at such high speeds because of magnetic levitation. The technology uses electro-magnetic force to levitate the body of the vehicle less than two inches from the rails and drive it forward along the tracks. By riding on a cushion of air, friction (摩擦力) is completely reduced, allowing it to travel faster than traditional trains where wheels and rails are constantly in contact. Although China has made use of the technology for a couple decades now, it’s only ever been used at very limited areas.

China Railway says its bullet train will greatly help cut down travel time. At top speedy the vehicle will be able to complete the 754-mile trip between Beijing and Shanghai in just two and a half hours. That same trip takes just over three hours by plane, five and a half hours by current high-speed rail options or 12 hours by car. That could make the train an especially attractive travel option for business travelers in the country. It’s unclear when the new bullet train will go into operation. The vehicle that the company showed off on Tuesday is the finished article.

Of course, the train’s record might not stand for long. The Central Japan Railway Company is testing a maglev train. It will be able to top out at 375 mph, according to New Atlas. But that isn’t expected to be shown in public until 2027 at the earliest. That gives China Railway Rolling Stock Corporation plenty of time to refine and upgrade its bullet train and push its top speed even higher.

【小题1】What can we know about the China’s new bullet train?

A．It is the fastest land vehicle.

B．It is close to the speed of sound.

C．It has gone into operation widely.

D．It has taken the place of the traditional train.

【小题2】What challenge might China Railway Rolling Stock Corporation face?

A．The poor management of it.

B．The lack of money used to improve the train.

C．The competition from Japanese company.

D．The shortage of creativity from its engineers.

【小题3】What is the attitude of the author to China’s bullet train?

A．Objective.	B．Doubtful.
C．Unconcerned.	D．Unfriendly.

【小题4】What is the text mainly about?

A．The world’s most costly train.	B．The China’s new bullet train.
C．The China’s modern trains.	D．The world’s fastest vehicle.