2017年5月六级口语考试就考到了bike sharing~ 四六级考试各个part存在蜜汁关联，最明显的就是口试讨论的话题通常跟作文话题不谋而合。
Key Words about Bikes自行车关键词
public bicycle service
ride a bicycle/take a ride/cycling/cycle/bicycle/bike
scan the QR code
unlock the smart lock
Environmental protection/environment friendly/help the environment
1. He bikes to work everyday. It’s convenient and good for environmental protection.
2. I choose cycling because it helps to keep me fit.
3. I rode a tandem bicycle with my friend yesterday.
4. People start to use public bicycle service in the city.
5. If you wanna take a ride, just download the app and scan the QR code. Unlocking the smart lock means you have started the timer.
Bike-sharing services took off in Chinese cities in the past two years. They allows riders to hire bikes for about one yuan per hour via a mobile app, and drop them off for the next user.
Customers are able to pick a bike anywhere in the city （thanks to the GPS-enabled app） and leave it anywhere at the end of their journey.
Users can rent a bike at a low cost, usually around 1 yuan an hour,depending on the brand. The services mostly target short-distance travel, such as between a subway station and work, or from home to the grocery store. They usually require a deposit for registration.
Bike sharing plays a positive role in many ways-meeting publicneeds, solving the "last mile problem" in urban public transport and easing urban traffic.
The service has reduced traffic congestion and cut auto emissions, but haphazardly parked bikes often block sidewalks, causing complaints.
Bike sharing has brought new problems to the city management, such as illegal parking and entering and exiting private areas without approval.
Shared bikes are easily accessible to children as a result of its technical defects. It is reported that some accidents happened to children when they were riding shared bikes.
The shared bikes are often parked at random and often block sidewalks.
Rules should be released to regulate the use and park of sharing bikes.
For example, forbid children under the age of 12 from riding shared bikes, or ban the shared bikes enter private areas, and so on.
The bike sharing companies should be responsible for the park of the bikes. High technology can be used to help the bikes to be parked in the specified locations.