对于重大突发事件的概念,虽有各种说法,但总体意见趋同。根据我国《突发事件应对法》的说法,界定为:“突然发生,造成或者可能造成严重社会危害,需要采取应急处置措施予以应对的自然灾害、事故灾难、公共卫生事件和社会安全事件。”①这些事件直接导致人们的生命财产损失、自然生态环境破坏、社会运行秩序与公共安全危机等,进而引发社会恐慌,使社会稳定遭受严重冲击或破坏。因此,面对重大突发事件,媒体作为影响大众的舆论工具,必须予以积极应对,承担起应尽的社会责任,直播成为电视媒体的应为之事。而由于突发事件容易成为社会关注的热点、焦点,也是媒体竞争的主战场。2007年6 For the concept of major emergencies, although there are various versions, but the overall convergence of views. According to China’s “Emergency Response Law”, it is defined as: “natural disasters, accidental disasters, public health incidents and social security incidents that happen suddenly, cause or may cause serious social harm and need emergency measures to deal with them.” "These events directly lead to people’s loss of life and property, destruction of natural ecological environment, social order and public safety crisis, which in turn cause social panic and make the social stability suffer serious impact or damage. Therefore, in the face of major emergencies, the media, as a public opinion tool influencing the general public, must respond positively and assume its due social responsibilities and become the media of television. As emergencies easily become the focus of social concern, the focus is the main battlefield of media competition. 2007 6