My name is ...如果有号码,可以说,my number is ....,I am very gald to be here to have the chance to take part in this competition(今天我非常荣幸在这里参加此次比赛),and I am very honored to have the chance to do this presentation(我同样非常荣幸,能够有机会做我的演讲或者,反正是比赛内容了,说这句肯定没问题),这几句30秒差不多了。