Our fears of public speaking result not only from what we do not know or understand about public communication but also from misconceptions (误解) and myths(错误观念) about public interactions .Perhaps the most popular myth about public communication is that it is a"special"activity reserved for unusual occasions. After all,how often do you make a public speech? There are only a few special occasions during the year when an outgoing professional person will step onto a platform to give a public speech,and many professional people can count on one hand the number of speeches given in the career. This argument,of course,ignores the true nature of public communication and the nature of the occasions in which it occurs. When we engage with people we do not know well to solve problems,share understanding and opinions,advocate points of view,or seek stimulation ,we are engaged in public speaking. Public communication is a familiar,daily activity that occurs in the streets,in