In the Olympic history before no city has hosted both the Winter and Summer Olympics. Now,Beijing will be first the city doing it.
After hosting the Summer Olympics in 2008 China will hold the 2022 Winter Olympics. On July 31st,2015，China beat Kazakh rival(对手) Almaty in a surprisingly close vote(选票).
In 2008 Beijing shut down many factories to reduce pollution，and the cost of hosting the Summer Olympics was $44 billion. During the 2022 Winter Games, however, Beijing hopes to show a greener China，with only $3. 1billion.
Beijing plans to use several playgrounds from the 2008 Olympics, including the Bird's Nest and Water Cube. But the Wand sliding events would be in Yangqing and Zhangjiakou,60 and 140—kilometers away from Beijing.
Beijing was seen by the IOC as a safe, reliable (可靠的) choice because it offered great commercial (商业的) opportunities in a new winter spors market.
"It is really a safe choice," IOC President Thomas Bach said,"We know China will keep its promises. "
