Due to the fact that verbal language is no more the only or even the main semiotic mode, previous studies which concentrated on mono-modal context and linguistic resources are inadequate and have limitations when their theories being applied to explore the present multimodal discourses. Ever since its emergence in the late 1990s and prosperity afterwards, multimodal discourse analysis including multimodal metaphor has been an effective way to analyze the non-linguistic resources. Nevertheless, most of the researches on multimodal metaphor are conducted from the perspective of cognitive linguistics. Seldom are there studies examining the multimodal metaphor on the grounds of systemic-functional theories, let alone using the Visual Grammar theory, put forward by Gunther Kress and Theo van Leeuwen in the pioneering work Reading Images. The dissertation not only intend to explore how multimodal metaphor are constructed in printed advertisement including public service advertisements and commercial advertisements, but also attempt to discuss the persuasive strategies and effects of multimodal metaphor in printed advertisements form the perspective of Kress & Van Leeuwen‘s meta-functional meanings and based on Aristotle‘s Three Appeals.
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CHAPTER TWO LITERATUE REVIEW
2.1 Previous Studies of Multimodal Discourse Analysis
One of the very first researchers in multimodal discourse analysis is R.Barthes. He discussed the interaction of pictures and words in