China, once famous for four inventions in ancient times, has once again showed its ability 【小题1】 (change) the world with its “new four great inventions”: electronic payments, shared bicycles, high-speed railways and online shopping.

With electronic payments, people can buy and eat 【小题2】 they want simply with a tap of their phones. Electronic payments are so convenient that they are really popular with folks. Even pancake sellers are found 【小题3】(use) Alipay. The bikes themselves are not new, 【小题4】the operating model of bike-sharing is innovative. Chinese companies have surprised the world with the business model of bike-sharing which 【小题5】 (include) high technologies, and are entering overseas markets such as Singapore and Britain. The launch of high-speed trains has a   【小题6】(big) influence on people’s choice of traveling than expected. The newly launched Fuxing Hao can travel at an【小题7】 (amaze) speed of 300 km/h, making the 1,318km joumey in five and three-quarter hours. China also takes the lead in online shopping with various e-commerce platforms. 【小题8】 the 11.11 shopping day in 2018, sales hit 10 billion yuan in the first 2 minutes after midnight and 【小题9】(reach) 213. 5 billion by the end of the day.

Thanks to the large amounts of capital (资金) China has invested in encouraging inmovation (创新), China has entered 【小题10】 new innovative time.

Recent months have seen a return of bikes across China, with an increasing number of people 【小题1】(choose) cycling instead of driving to schools, to workplaces or to go sightseeing. The introduction of bike-sharing programs has brought the trend to a new level.

The bikes 【小题2】 (equip) with GPS and can be left anywhere in public for the next user. They’re popular among many Chinese people as they provide 【小题3】 effective solution in places 【小题4】 it’s difficult to change from one kind of transport to another. Bike-sharing is a 【小题5】 (green) method of transportation and 【小题6】(provide) a more friendly experience.

However, the programs have also led to problems such as 【小题7】 (legal) parking, deliberate damaging and theft. To deal with these problems, the company came up with the idea of encouraging people 【小题8】(return) the bikes to stations 【小题9】 rewarding free time for their next rides. Now, Chinese service operators are also trying to address the problem, too. For example, Mobike sets a 100-point credit score for each user, with points taken in case of bad 【小题10】 (behave). Once a score drops below 80, bike rental is increased to 100 yuan per 30 minutes, up from 0.5—1 yuan.

Beijing, together with Zhangjiakou, succeeded in getting the chance to host the 2022 Winter Olympic Games,   which   speeds   up   the   development   of   Zhangjiakou   City.   Word   came     【小题1】   the   Beijing- Zhangjiakou high-speed railway, located in North China, is now   【小题2】 construction, and is expected to be completed by 2020 in   【小题3】   (prepare) for the cities to host the 2022 Winter Olympics.

Starting from Beijing North Railway Station and heading west through the Great Wall, the project is 【小题4】 (probable) the biggest challenge ever. Its designers say that the explosions needed   【小题5】(dig) the tunnels will not have a negative effect on the structure.

The railway line has a   length of 174 km as a double-track passenger line, with ten stations along its route. Enjoying   【小题6】   total investment of 31.17 billion yuan ($5 billion), the trip between the two cities will only take 40 minutes   【小题7】   the train will travel at an average of 250 km/h.

According to the plan, the high-speed railway will have two branch   【小题8】line) — one is to Yanqing Station and the other to Taizicheng of Chongli, where the Olympic Village lies. The full railway,【小题9】 (include) a 70-kilometer section through Beijing,   【小题10】 (complete) in four and a half years.