重 大突发事件 ,涉及国家和人民的安全和利益 ,当它发生时 ,各级政府会调集一切必要力量、采取一切必要措施进行紧急应对。但由于重大突发事件的突然性和复杂性 ,政府日常措施的滞后性和不完善性 ,会导致公众对突发事件的恐惧和对政府应对能力的疑虑 ,如果没有舆论的及时引导和 Major emergencies involve the security and interests of the country and its people. When it occurs, all levels of government will mobilize all necessary forces and take all necessary measures to respond urgently. However, due to the suddenness and complexity of major emergencies, the laggingness and imperfection of government routine measures will lead to the public’s fear of emergencies and their doubts about the government’s ability to cope. If there is no timely guidance from public opinion and