People ride bicycles all over the world. In China you may notice that many people don’t wear helmets when 【小题1】 (ride) bikes. But in many other countries, people have to wear them when they ride their bikes. In some places of the USA, riding bikes 【小题2】 helmets is against the laws (法律). Other countries, such as Australia and Spain, have laws saying everyone must wear a helmet for their own 【小题3】 (safe). Many people say that helmets are like seat belts (安全带). 【小题4】 (wear) them can protect people’s heads from injury.

In China, bicycles have their own special roads but 【小题5】 (ride) must obey the traffic rules. If they’re 【小题6】 /ˈkeələs/ and break the rules, they may be in danger. In the USA, roads are only for cars. People don’t ride their bikes to school 【小题7】 work often. But this isn’t true for some countries in 【小题8】 /ˈjʊərəp/. In the Netherlands (荷兰), bicycling is very popular. The whole country has good bicycle roads.

Do you ride your bike to school? In China, this is very 【小题9】 /ˈkɒmən/. But in the USA, kids only ride their bikes 【小题10】 fun on the weekend. They see bicycling as a sport.

Many blue bikes just jump into our eyes whenever we are walking on the street. But do you know anything about 【小题1】?

They are owned by 【小题2】 company called Hellobike. It appeared in Xiamen by the end of 2016. 【小题3】 March, 2017, Shanghai became the largest bike-sharing city in the world. And then shared bikes spread to Beijing, Guangzhou, Shenzhen and Wuhan. They are becoming more and more 【小题4】, especially among white-collar(白领) workers during rush hours. Instead of walking, the workers like riding a bike because they can get to their company more 【小题5】. For that reason, 【小题6】 a few bikes are needed in the streets. The bike-riding record has reached about twenty million in one day.

Shared bikes are so convenient(便利的), so they 【小题7】 an important role in people’s life. The user who has the mobile APP just needs to use the mobile 【小题8】 to scan the QR code(二维码) on the bike, and then unlock the bike to begin the timer. Shared bikes don’t use a certain(特定的) parking place in the street, 【小题9】 users can park bikes anywhere they want. But users sometimes leave them in remote(偏僻的) places where it’s hard for other users to find them.

【小题10】, three shared bike companies begin to take actions to solve the parking problems. If users don’t park bikes in the parking lots, the bikes cannot be locked and the chargeable time(收费时间) will not be stopped.

If you visit Beijing, you should know how to get around. There are three ways for you.

【小题1】 first one is the subway. It usually takes you a little time. If the place where you want to go is far, the subway is the best way for you. The 【小题2】 for each trip is 3 yuan. And it runs every five minutes, so you don’t have to   【小题3】 for a long time.

Buses are 【小题4】 popular than the other ways. 【小题5】 a bus is the best means of transportation. Most of the buses begin to work early in the 【小题6】. The price depends 【小题7】 how far you want to go. The starting price is 2 yuan. If you use the transportation card when you take a bus, you can save some 【小题8】, because you only need to pay half of the price with the card. You can also use the transportation card to take the subway, but no discount（折扣）.

You can also take a 【小题9】 at any time of the day. The starting price of taxi is 10 yuan for the first 3 kilometers. 【小题10】 you travel more than 3 kilometers, you should pay another 2 yuan for one kilometer.