The modern Olympic Games happened in the year 1896. The Games are held every four years. There are two main sets of Games. The Winter Olympics are held two years before the Summer Games. Many countries want to host the Olympic Games for it’s a great honor to be chosen.
The Olympic Games are organized and controlled by the International Olympic Committee （委员会）(IOC). It sets the general program, chooses the city where the games are to be held, and determines the standards of what is an amateur （业余的）athlete.
Besides, each participating country has a National Olympic Committee that is responsible for arranging （安排）the participation of the nation’s athletes in the games.