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Have you ever gone traveling on the train that was named after the letter D?

Named after the letter D，the new trains run at speeds of 200 to 250 kilometers one hour．These are much faster than Z-type and T-type．For example, it used to take people 12 hours to travel from Shanghai to Beijing．But now it only takes 10．The most interesting part of the bullet trains is the revolving（旋轉）seats．People can adjust their seats as they like, so that it is easy for you to talk with others around you face to face．The new trains run between big cities．They make the long trips much faster and more comfortable．

All coins have two sides．However, many passengers still won't choose the bullet trains for some reasons．The ticket prices of the bullet trains are much higher．For an easy example, a hard seat ticket from Beijing to Jinan is only RMB 90 for T- type trains, But on the bullet trains all the seats are soft．And they ost RMB 153 to 154．On the other hand, the bullet trains stop at the small stations such as Tianjin only for one minute．

1．Passengers who take the D106 train in Tianjin have to hurry because _______．

A．it stops for three minutes                             B．there are too many passengers

C．it runs too fast                                            D．it stops for only one minute

2．What it is the most interesting part of the bullet trains?

A．The hard seats．                                       B．The revolving seats．

C．The beautiful colors．                  D．The train tickets．

3．How long does it take to travel from Shanghai to Beijing on a bullet train now?

A．20 hours．           B．12 hours．          C．10 hours．           D．5 hours．

4．The bullet trains make the long trips _______．

A．faster and more comfortable                  B．more dangerous

C．more boring                               D．cheaper

5．Why won't many passengers choose the bullet trains?

A．Because they can't enjoy scenery on the way．

B．Because they are too small．

C．Because they stop too often．

D．Because the ticket prices are too high．