ladies and gentleman welcome to ***english-speaking contest. this contest is cosponsered by*** &***(or sponsored by***) i'm *** ,it's my great honor to host this contest. first ,let me introduce our judges today. let's give the warmest apllause to welcome *** *** *** today, our topic is ***然后根据题目发挥一下 now let's welcome contestant NO.1 然后评委提问什么的时候,主持人不用说什么的,等到一位选手讲完回答完以后就说thank you ,excellent什么的,或者给予简单的点评然后 let's welcome contestant NO.2 ...... now ,let welcome *** to give some comments for contestants' performance now ,we come to the most exciting moment ,let welcome *** to annouce the final result thank you for being here goodbye. 我也是第一次做,个人经验,仅供参考, 对了上台时会比较紧张,要克服哦(当然很难克服,我认为) 祝你好运!!!