That Beijing, together with Zhangjiakou,     1     (succeed) in getting the chance to host the 2022 Winter Olympic Games in 2015, speeds up the development of Zhangjiakou City.

Word came     2     the Beijing-Zhangjiakou high-speed railway,     3     (locate) in North China, is currently under construction, and is expected to be completed by 2021 in preparation for the cities to host the 2022 Winter Olympics. Starting from Beijing North Railway Station and heading west through the Great Wall three times in the capital’s territory, the project is a big challenge,     4     designers say the explosions needed to dig the tunnels will not have an impact on the structure. The line has a     5     (long) of 174km as a double tracked passenger dedicated line(双轨道乘客专线), with ten stations situated along       6     (it) route. Having a     7     (totally) investment of 31.17 billion yuan ($5 billion), the trip between the two cities will only take 40 minutes, with the train     8     (travel) at an average of 250 km/h. According to the plan, the high-speed railway will build two branch lines — one is to Yanqing Station and the other     9     Taizicheng of Chongli, where the Olympic village lies. The full railway, which includes a 70-kilometer section through Beijing, will be completed in one and     10     half years.

5 . A bicycle may be seen by most people as just another vehicle(交通工具), but for many Londoners, cycling is a way of life. According to a UK government survey in 2020, about 570,000 bike journeys were made every day in London. In fact, almost half of the vehicles that pass over London Bridge each day are bikes.

London introduced a public bike-sharing system in 2010. “There can be no doubt that our trusty bicycles have changed that way people get around our great city,” Johnson told The Guardian.

In London, bikes are used for more than just taking short trips to and from the subway. NO matter where you want to go in the city, riding a bike is usually the quickest and easiest choice.

And it’s not just shared bikes that the government is encouraging people to ride. In many companies across the UK, the UK government’s Cycle to Work scheme(计划) allows workers to buy a brand new bike without having to pay any tax (税). This means that it’s common to see many people cycling to and from work, and some employers even provide showers and lockers in the workplaces for their workers. More importantly, a cycle-friendly boss may let you off for being late if you ride a bike to work.

Not only is it great for the environment and our body, cycling is also good for the mind. According to National Geographic, “Bike riding can improve people’s happiness.”

8 . A fully electric seaplane has made its first flight over the mouth of the Fraser River near Vancouver, Canada. The flight represents a milestone in the long process of reducing the aviation industry’s emissions and costs by electrifying short-to-medium distance commercial flying.

Several hundred people crowded the river bank on Tuesday morning to witness what they hoped would be a historic moment. They were not disappointed. Among cheers, the battery-powered Harbour Air seaplane lifted off into the sky. The plane flew a short round-trip downriver before landing five minutes later.

“It was magical. It was much quieter than I had expected it to be,” said Nicki Malcom, one witness from Auburn, Washington. “It’s definitely the future,” said Chip Jamison, who came from Portland to see the electric plane he produced parts for. “You can see it with automobiles. Planes are next. It's right in front of us.”

The test pilot was the only person on board the six-passenger DHC-2 de Havilland Beaver. He was the CEO and founder of Habour Air, Greg McDougall. McDougall’s seaplane airline teamed up with a Redmond, Washington-based electric motor maker named Magnix to transform the classic de Havilland Beaver plane. Magnix CEO Roei Ganzarski sees the seaplane's first flight as a milestone, similar to the first jet takeoff.

“Today you witnessed the first shot of the electric aviation revolution,” Ganzarski told the two companies' staff, contractors, media and other celebrators. “Let’s start the revolution.” Ganzarski laid out a case for how battery-powered flight offers lower noise, zero pollution and could reduce fuel and maintenance costs. “Lower operating costs for airlines like Harbour Air will mean lower ticket prices for all of you,” he said. “Lower operating costs mean they can now fly to more destinations that we couldn’t fly to before.”

It will be some time before regular folks can book a ticket on a clean, electric seaplane.