2. The standard field of modern table tennis competition should be no less than 14m in length, no less than 7m in width and no less than 4m in height, and should be surrounded by fence boards with a height of 75cm. The ground of the site should be non-slip hardwood floor, and there should be no obvious reflection.
3. Table tennis is 2.74m long,1.52m wide and 76cm high. The table is dark and 3.5cm thick. It is made of solid wood and must be flat and elastic. Draw white lines with a width of 2cm along the four sides of the table, which are end lines and edge lines respectively. The table tennis net is in the middle of the table, with a net length of 1.83 m and a height of15.25cm..
4. The net device comprises a net, a net hanging rope, a net post and a clamping part for fixing them on a table. The distance from the outer edge of the net column to the edge of the table is15.25cm. ..
5. Table tennis has a diameter of 37.2-38.2 mm and a weight of 2.40-2.53 g. The ball falls to the standard steel block from a height of 305 mm, and is divided into low, middle and high pinballs according to the different bouncing heights. The color of the ball is yellow or white.
6. Swirling Cup and Columbia Cup.
7.d material, mainly rubber friction and elasticity.
8. Best of seven games, single game 1 1 point.
9. When serving, the ball should be placed on the palm that does not hold the racket, and the palm should be open and flat. The ball should be static, behind the end line of the server and above the horizontal plane of the playing surface; The server must throw the ball up almost vertically by hand, and must not make the ball rotate, and make the ball rise not less than16 cm after leaving the palm of his hand without clapping his hands; When the ball falls from the highest point, the server can hit the ball, so that the ball first touches its own table, then crosses or bypasses the net device, and then touches the table of the receiver. In doubles, the ball should touch the right half of the server and the receiver successively; From the last moment when the ball is still before pitching to hitting the ball, the ball and racket should be above the level of the playing table; When hitting the ball, the ball should be behind the end line of the server, but it should not exceed the farthest part of the server's body from the end line (except the arm, head or leg); When an athlete serves, he has the responsibility to let the referee or the assistant referee see if he serves according to the statutory provisions; If the referee doubts the correctness of a service action of the server, and neither he nor the assistant referee can determine that the service action is illegal, when this phenomenon appears for the first time in a game, the referee can warn the server not to score; In the same game, if the correctness of a player's service is questioned again, whether for the same reason or not, he will be deducted without warning; Whether it is the first time or at any time, as long as the server obviously fails to serve according to the legal provisions, he will be deducted one point without warning; When an athlete can't strictly abide by some rules of legal service due to physical injury, the referee can make a decision to waive execution, but he must explain it to the referee before the game.
10.( 1) Block the ball:
(1), characteristics and application The ball is slow, light in strength, simple in movement and easy for beginners to master. It can help beginners to be familiar with the ball, understand the hitting rules of table tennis and improve the ball control ability.
(2) Key points: ① Blocking the ball is the basis of pushing and blocking the ball, and beginners should form correct movement techniques. ② When shooting, the upper arm should be close to the body. (3) Forearm stretches forward close to the ball, wrist and fingers adjust the racket shape, forefinger exerts force, and thumb relaxes.
(2) Fast push:
(1), the characteristics and application of fast push are that the station is close, the action is small, the counter-attack is assisted, the speed is fast, and there are many line changes. Suitable for returning the general pull ball, push ball and medium-intensity attack ball; In the stalemate stage, you can give full play to the advantage of returning the ball quickly, push two corners or attack the opponent's gap, and create conditions for your own attack. This is the most commonly used push and block technique.
(2), the main point ① Before hitting the ball, it is close to the body and the forearm is properly withdrawn. ② When the forearm is pushed forward, complete external rotation. ③ Don't rotate your wrist too much, the key is timing.
(3) harder:
(1), features and application: heavy return, fast speed, high hitting point, and full play to the propulsion of the arm. In the game, the propulsion can force the opponent to leave the stage and fall into a passive situation (such as attacking the front board sideways with the forehand, pushing the baseline or at a large angle). When used in conjunction with the force reducer, it can effectively mobilize opponents and gain the initiative. It is suitable for handling topspin balls with slow speed and weak rotation or incoming balls with light strength and slightly higher bounce than the net after landing.
(2) Key points: ① Pull the racket backward and upward to increase the distance of exertion. ② The hitting point should be far away from the body. ③ The hitting time should not be too early or too late. (4) Effectively concentrate the strength of all parts of the body at the moment of hitting the ball.
(4) Force reducer:
(1), features and application: low return arc, low impact point and light force. When receiving the opponent's strong smash or block, it can weaken the power of returning the ball. If combined with pushing, the opponent can be mobilized back and forth, which is an effective tactic to deal with bilateral pull or bilateral attack between China and Taiwan. It is also often used to receive and rotate the loop ball.
(2) Key points: ① Before hitting the ball, the center of gravity of the body is slightly raised, the forearm is slightly flexed, and the racket keeps an appropriate forward angle. At the moment of touching the ball, consciously do the action of shrinking your arms and wrists. (3) Weaken the rebound of the incoming ball, and at the same time block the ball with the power of the ball and return it quickly.