Football 
Do you often play football? Many people in the world like playing football. They often name British soccer football. But they are different games. Do you know the difference between them? A soccer ball is round, but an American football is not round, like an egg. Soccer teams have eleven players on the field. American football teams have forty players, but only eleven players are on the field at one time.
In a soccer team, the goalkeeper （守门员） is the only player to stop and pick up the ball with his hands. In American football, all the players can catch the ball with their hands. They can run with it and throw it to other players.