1.The success of a team is measured by means of_______________________.

　　A) the yards it gains

　　B) the field goals it scores

　　C) the strategy it uses

　　D) the touchdowns it scores

　　2.When the teams need to play the overtime period,the team that__________________wins.

　　A) gains more ground

　　B) gets more touchdowns

　　C) scores before the other

　　D) gets the first penalty kick

　　3.How many timeouts are the teams allowed to have?

　　A) Two for each quarter.

　　B) Three for each half.

　　C) Three for each quarter.

　　D) Two for each half.

　　4.What is included in an NFL roster?

　　A) All the players on the team.

　　B) The substitute players and coaches.

　　C) Only the players allowed on the field.

　　D) The offense,the defense and special teams.

　　5.The role of the on-the-field leader is played by ______________________.

　　A) a receiver

　　B) a quarterback

　　C) a running back

　　D) an offensive lineman

　　6.Usually, offensive linemen consist of at least_______________players.

　　A) three

　　B) four

　　C) five

　　D) six

　　7.In the defense team, the deepest defensive position is played by_________________.

　　A) defensive linemen

　　B) linebackers

　　C) cornerbacks

　　D) safeties

　　8.Kicking a ball through the goalposts to gain points is the responsibility of____________________.

　　9.The right of a team's opening kickoff is usually determined by___________________.

　　lO.The offensive team will lose possession of the ball if it fails to gain lO yards in__________________.