通过COCA语料库的词频搜索,确定军事、经济和卫生类新闻作为研究对象;再通过与关键词的搭配搜索过滤出有代表性的语料。语境再现后获得的完整语料表明美国本土的报道隐藏着对美国军事强权,经济困境,医疗保障被忽视等问题的无声批判。因而,新闻报道的隐性含义并非是在对他国报道中使用的手段,而是新闻报道的本质特点。 Through the search of word frequency of COCA corpus, the military, economic and health news were identified as the research object; then the representative corpus was filtered out through the collocation search with keywords. The complete corpus obtained after the reappearance of the context shows that U.S. domestic reports have hidden silent criticisms of the U.S. military power, economic difficulties and neglect of medical care. Therefore, the implicit meaning of news reports is not the means used in the coverage of other countries, but the essential feature of news reports.