According to the rules of basketball, two points will be scored for short-distance or medium-distance hitting, and three points will be scored for long-distance hitting (6.25m away). The score of three-pointers is 50% higher than that of two-pointers, and the advantage of three-pointers is obvious. Three-pointers are not only one point more than two points, but also boost the morale of the team. In addition, three-pointers can change the pattern of attack and defense. A three-point long shot with a high hit rate is conducive to expanding the opponent's defensive area, attacking inside and combining inside and outside.

2. The use of three-pointers in the game

(1) Three-point shooting area. In modern basketball games, the three-point shooting is mainly concentrated in the near angle, 45 and the top of the arc, so we divide the three-point shooting area into five equal parts, which are 1, 2, 3, 4 and 5 from left to right. 1 zone and zone 5 are corner zones; Zone 2 and Zone 4 are near Zone 45; Region 3 is the arc top region. According to experts' statistics, in the basketball game, the shooting percentage of the five regions (Figure 1) is almost the same, but the shooting times are quite different.

Zone 3 is mainly the defender's long-range shooting area. In the basketball game, because the point guard often falls at the top of the circle and undertakes the task of organizing the attack, he is often closely watched by the opposing team members. The game in this area is 7 ~ 9 meters, which leads to less shooting opportunities in this area.

Zone 2 and Zone 4 are mainly long-range shooting zones for forwards and defenders. This area is the combination point of defense and belongs to the weak link of defense. In the game, through tactical cooperation, there are often gaps and offensive opportunities in this area. In addition, due to the focus of zone 3 defense and the center's inside containment, the opponent's defense in zone 1 and zone 4 is relatively loose, and the attacker uses fast transfer of the ball and other means, so it is relatively easy to have long-range shots in this area.

1 and 5 areas are mainly the activity areas of forwards, and there is less defensive interference in this area when shooting. According to the principle of defense, the defender has a certain distance from the attacker with an angle of 0. If tactical cooperation is adopted, for example, the defenders concentrate on the basket and the pitcher catches the ball at an angle of 0, there will be enough space and time to shoot without interference.

(2) The application of three-pointer in ultra-long distance. With the improvement of athletes' physical fitness and skills and the increase of competition space, in order to expand the opponent's defensive area, make the inside players have more room to move, improve the inside players' attack power, and be more conducive to the attack and breakthrough under the basket, many teams have strengthened their long-distance shooting (the shooting point is more than one-third line 1.0 meters away).

Ultra-long-range three-pointers are mainly used in the following occasions: ① When nobody defends or the defense is weak. Because the shooting point of the three-point ultra-long shot is more than the three-point line 1 m, the shooting rate of the three-point ultra-long shot is low, and the defender is generally weak in the ultra-long shot, which provides shooting opportunities for the ultra-long shot. (2) At the end of the attack time, in order to avoid the 24-second attack violation, we can only hastily choose to shoot three points and strive for the last attack opportunity.

(3) The application of three-pointers in fast break. Fast break is a kind of quick-decision tactical cooperation in which the defender tries to seize the fighter plane and launch an attack decisively and reasonably with the fastest speed and the shortest time when the opponent's array is unstable after getting the ball. Fast break can not only demoralize opponents, but also inspire our team to win. /qydtInfo.asp？ Articleid=73884