当我们放眼当今世界政坛之上，会发现一个有趣的现象：各个大国的领袖人物通常不会是勤奋苦干的"老黄牛"或天资过人的天才人物，但都具有超凡的口才和演讲能力。最典型的是现已执政的美国总统奥巴马，他在2008年参加美国总统竞选时，也不过就是一个47岁草根出身的非洲裔美国人。而就是这样一个几年前还名不见经传、并无多少政治履历的非洲裔美国人，成为了美国几百年的历史上的第一位黑人总统。"奥巴马"这个名字，如今在美国已成为首屈一指的政治品牌。其蕴藏的巨大能量，一次又一次突破人们的预期，不断为美国政治史创造新纪录。奥巴马能够在短短时间内跃升为美国人气最旺的政治明星？他身上所具有的强烈个人感染力功不可没，这种感染力说得更具体，就是奥巴马演讲的魅力。 ( When taking a broad view towards the current world political circle, we might discover an interesting phenomenon: the leader of each country is always not he hard working "willing ox" or the talented people, but the one with extra-ordinary eloquence and speech ability. One of the most typical examples is Obama who has been the president of America. When participating in the campaign for American president, he was only a 47-years-old African-American with grass root background. However, just this unknown African-American who even did not have too much political experience turned to the first black president in hundreds years of American history. His name "Obama" has become the top political brand in the United States and the power under it has broken the anticipation of human being and the record of American political history over and over again. And why could Obama leaped to be the most popular American political star in the short time? There is no doubt that the strong personal appeal or the charm of his speech must play one of the most important roles. )