作为人类文化传播的一种形式,公益广告被认为是民族文化的窗口。随着文化交流的逐步加深,公益广告这朵奇葩也日益凸显出西方文化的韵味。这种异域韵味主要是通过文化的主要载体语言在民族文化的包围中逐步延伸的。本文拟在探讨公益广告中的语码转换现象,并试图找出采用这一策略的主要原因。 As a form of human cultural communication, public service advertising is considered as a window of national culture. With the gradual deepening of cultural exchanges, this wonderful flower of public service advertising has increasingly highlighted the charm of Western culture. This exotic charm is gradually extended through the culture of the main carrier language in the encirclement of national culture. This article intends to explore the phenomenon of code-switching in PSAs and tries to find out the main reasons for adopting this strategy.