HaveyouevergonetravelingonthetrainthatwasnamedaftertheletterD?

NamedaftertheletterD，thenewtrainsrunatspeedsof200to250kilometersonehour．ThesearemuchfasterthanZ-typeandT-type．Forexampleitusedtotakepeople12hourstotravelfromShanghaitoBeijing．Butnowitonlytakes10．Themostinterestingpartofthebullettrainsistherevolving（旋转）seats．Peoplecanadjusttheirseatsastheylikesothatitiseasyforyoutotalkwithothersaroundyoufacetoface．Thenewtrainsrunbetweenbigcities．Theymakethelongtripsmuchfasterandmorecomfortable．

Allcoinshavetwosides．Howevermanypassengersstillwon'tchoosethebullettrainsforsomereasons．Theticketpricesofthebullettrainsaremuchhigher．ForaneasyexampleahardseatticketfromBeijingtoJinanisonlyRMB90forT-typetrainsButonthebullettrainsalltheseatsaresoft．AndtheyostRMB153to154．OntheotherhandthebullettrainsstopatthesmallstationssuchasTianjinonlyforoneminute．

1．PassengerswhotaketheD106traininTianjinhavetohurrybecause_______．

A．itstopsforthreeminutes B．therearetoomanypassengers

C．itrunstoofast D．itstopsforonlyoneminute

2．Whatitisthemostinterestingpartofthebullettrains?

A．Thehardseats． B．Therevolvingseats．

C．Thebeautifulcolors． D．Thetraintickets．

3．HowlongdoesittaketotravelfromShanghaitoBeijingonabullettrainnow?

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

4．Thebullettrainsmakethelongtrips_______．

A．fasterandmorecomfortable B．moredangerous

C．moreboring D．cheaper

5．Whywon'tmanypassengerschoosethebullettrains?

A．Becausetheycan'tenjoysceneryontheway．

B．Becausetheyaretoosmall．

C．Becausetheystoptoooften．

D．Becausetheticketpricesaretoohigh．