Ladies and gentlemen,may I have your attention please
Good evening everyone !Today,we are here to cerebrate Mr/Miss XXX's XX（st/nd/rd/th) (年龄）birthday and it's my honor to be hosting this party.
Thank you everyone for coming.
Now,Please applaud for Mr/Miss XXX to give us a few word.
(发言)XXXXXXXXXXXX
Thank you very much Mr/Miss XXX.
(唱生日歌的）Now,let's sing happy birthday for Mr/Miss XXX
(唱生日歌)XXXXXXXX
Thank you everyone
Please help yourself to the food and enjoy the party.(请随便吃和玩得高兴）
得承认下,有点参考第一条的.ehmm.