Bicycles are very popular in China. In our country you can see bicycles almost everywhere. When you walk on the road, you will find a lot of people riding bicycles to schools, shops and anywhere else. Therefore, China is known as “the kingdom of bicycles”. In China, many families have one or two bicycles.
Compared with cars, bicycles have many advantages. First, they are much cheaper than cars. Most Chinese can’t afford cars, but they can afford bicycles. Second, bicycles are small enough to park anywhere, while cars need a larger piece of land to park. What’s more, with lower speed, bicycles are safer than cars.
However, bicycles also bring some problems. Some riders don’t obey the traffic rules and some riders don’t think about others safety. So they ride too fast. During the rush hour, too many bicycles may cause traffic accidents. We still have a long way to solve the problem.
小题1: Where can you see bicycles in China?
A．In the big city
B．In the town
C．Almost everywhere
D．In the countryside小题2:“The kingdom of bicycles” here is saying .
A．China has plenty of bicycles
B．China makes bicycles
C．Only China has bicycles
D．All the Chinese have bicycles小题3: Which of the following is NOT an advantage of bicycles
A．Bicycles are much cheaper than cars.
B．Bicycles are more beautiful than cars
C．Bicycles are easy to park
D．Bicycles are safer than cars.小题4: What does the last sentence mean?
A．We should drive cars instead of riding bicycles
B．It’s too far to ride bicycles
C．We still need to do much to solve the problem
D．we should walk farther to solve the problem
CH2=CH2↑+H2O，反应时，常因温度过高而使乙醇和浓H2SO4反应生成少量的SO2，有人设计下列实验确认上述混合气体中有乙烯和二氧化硫。 