北京2008残奥会项目介绍之[20]--- 轮椅网球

北京残奥会的比赛项目有20个大项，即、、、、、、、、、、、、、、、、、、和。根据残奥会规则，所有项目将根据运动员的残疾类别和残疾程度进行分级，共设471枚金 牌，以保证体育的公平竞争和比赛安全。以下是北京残奥会20个大项的双语介绍：

wheelchair tennis 轮椅网球

wheelchair tennis appeared for the first time on the paralympic programme in barcelona in 1992. it originated from the usa in the 1970s and continues to develop a strong following of players and fans internationally. the game follows able-bodied tennis rules and athletes must have high levels of skill, fitness and strategy. the only difference in wheelchair tennis competitions is that the ball is allowed to bounce two times - the first bounce being within the bounds of the court.

轮椅网球运动1976年由美国人发起。1988年成立国际轮椅网球联合会(iwtf)。1988年第八届韩国汉城残奥会上轮椅网球首次成为表演项目，从1992年第九届西班牙巴塞罗那残奥会起正式作为比赛项目。

残奥会轮椅网球项目规则与奥运会网球规则基本相同。轮椅网球有特殊规定：允许网球在被回击前有两次反弹(如果接一次反弹球，该球必须是在场地界内弹起；如果是接两次反弹球，该球在被击回前的第二次反弹既可在界内，也可在界外。