First, it discusses the previous research by Halliday and Simpson. 本章首先討論了韓禮德和辛普森的情態(tài)研究成果。
So far as study on Themes in English is concerned, most scholars mainly follow Halliday with a little modification. 對于英語(yǔ)主述位的研究,多數學(xué)者盡管做了一定的修正,但基本上追隨韓禮德。