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

Starting from Beijing North Railway Station and heading west through the Great Wall, the project is    4    (probable) the biggest challenge ever. Its designers say that the explosions needed to dig the tunnels will not have a negative effect on the structure. The railway line has a    5    (long) of 174 km as a double-track passage line, with ten stations along its route. Enjoying    6    total investment of 31.17 billion yuan, the train will travel as fast as 300 km/h,    7    the trip between the two cities will only take 40 minutes.

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

At the first light of day, Feng Tianqiong gets up to clean her Farmyard She runs an agritainment (农家乐) business and prepares local specialty chaihuoji, or roast chicken    1     (cook) on firewood.

The 60-year-old farmer    2    (welcome) her first guests at 10 am, and one hour later, visitors pack out of her farmyard sealing area in the Three Gorges reservoir region along the Yangtze River,     3    (drive) from nearby cities for leisure travel during weekends or holidays.

Living in the Dazhou township in Southwest China's Chongqing, she    4    (previous) managed to earn a living by farming. In March 2019, Feng opened her agritainment business after the local government built a landmark riverside 10-mile corridor and several tourist    5    (attraction). These had spread on social media and become hot spots for photo shoots with their beautiful river views,

Last year alone r over 200,000 tourists crowded into Feng's town, leading to the emergence of 30 agritainment businesses    6    three bed-and-breakfast venues in villages.

“It is all thanks to the government's efforts    7    ( promote) infrastructure (基础建设) and develop rural tourism,” Feng says.

Feng's is among so many towns,    8    have ridden the wave of rural tourism. The industry generated total revenue (税收) of 850 billion yuan nationwide last year.

    9    more urban residents driving to the countryside for leisure on weekends and holidays, local villages have been transforming empty and old houses into agritainment businesses, aiming to catch up with the sector's rapid     10    (expand).

Earth Day is a yearly event celebrated on April 22. Various activities    1    ( hold ) worldwide to show support for environmental protection. Here is a brief history of    2    event.

In the 1960s, Americans were becoming aware of the effects of pollution    3    the environment. In 1969, Senator (参议员) Gaylord Nelson,    4    ( consider )one of the leaders of the modern environmental movement, developed the idea of Earth Day. His idea really raised    5    (aware )about the environment. On April 22, 1970, over 20 million people turned up for the first Earth Day. They believed it was important    6    ( keep ) the planet safe.

In 1990, Earth Day went global, with 200 million people in over 140 nations     7    ( participate ). In 2000, Earth Day focused on clean energy and involved hundreds of millions of people in 184 countries and 5000 environmental    8    ( group ). Activities ranged from a traveling to a gathering of hundreds of thousands of people at the National Mall in Washington, D. C. Today, the holiday is a global celebration    9    is sometimes extended (延长) into Earth Week, a full seven days of events focusing on green living. In 2018, more than 1 billion people were involved in Earth Day activities, making it one of the    10    (large)events in the world.