A theory of meta discourse is based on Halliday's pragmatic functional approach to language.
元话语的理论建立在韩礼德的语言的语用功能理论基础之上.
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The study of text - connectives theoretically comes under the strategy of meta - discourse ( Kopple, 1985 ).
从理论上看,以文本连接词为中心的教学模式属于元语篇策略的范畴.
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