There are lots of transportation ways in modern cities,such as taking bus,subway,taxi,ridng bicycle and so on.But my favourate way is riding bycicle.Because it is an energy saving,environmental friendly and a cheap way.Going out by bicicle can also be arranged as our time schedual,it is very convenient .It accords with the idea living in a modern city.For other ways of transportation,they are expensive and often limited by the condition of the road.They are also inconvenient and can harm the environment.So my favourate way of transportation is riding bicycle.