问题补充：
The bicycle is really and important means of transportation in China.Bicyclese have become more and more popular in China.People ride bikes to their workplaces,to shopping centers,to schools,and so on.During the rush hour,you can often see a boiling sea of bicycles running in all directions.With the largest number of bike riders in the world,China is often referred to as the kingdom of bicycles.There are many advantages(优点) about the bicycle.For example,bicycles do not cause air or sound pollution(污染);compared with cars,bicycle cause no environmental(环境的) problems;bicycles save energy(能源) and parking place;riding bikes to travel can be a wonderful experience(经历);the bicycle allows us to go anywhere nearby easily;bikes are not very expensive,and almost every family can afford them;riding bikes regularly does good to peoples health.
通读短文，然后根据短文内容回答问题。
【小题1】Why is China called the kingdom of bicycles?
【小题2】Can we go anywhere easily by bicycles?
【小题3】Why can almost every family afford bicycles?
【小题4】What do you think the most popular means of transportation in China is?
【小题5】What are the advantages of the bicycles?You can give one or two examples.
Because China has the largest number of bike riders in the world.
答案：
(答案→)Because China has the largest number of bike riders in the world.
解析：本文讲述了自行车是我国非常有用的交通方式，我国被荣为自行车王国，骑自行车有许多的好处，可以帮助解决我国的环境问题，节约我国的资源等问题。
【小题1】根据With the largest number of bike riders in the world,China is often referred to as the kingdom of bicycles.可知，中国之所以被称为自行车王国，就是因为中国有世界上最多的骑车人。故本题的答案应是Because China has the largest number of bike riders in the world.
【小题2】根据the bicycle allows us to go anywhere nearby easily;可知，本题的答案是肯定的，故填Yes，we can。
【小题3】根据bikes are not very expensive,and almost every family can afford them可知，因为自行车不贵，所以每个家庭都能买得起。故本题应是Because bikes are not very expensive.
【小题4】根据整篇文章的意思和我们所处的环境，当然是“自行车”了。故填The bicycle。
【小题5】根据文意可知，文中提到的For example,bicycles do not cause air or sound pollution(污染);compared with cars,bicycle cause no environmental(环境的) problems;bicycles save energy(能源) and parking place;riding bikes to travel can be a wonderful experience(经历);the bicycle allows us to go anywhere nearby easily;bikes are not very expensive,and almost every family can afford them;riding bikes regularly does good to peoples health.这些句型都是。
