本次的研究目的旨在探討以系統功能語言學(SFL)的理論架構設計科學文本，對學習者的閱讀學習理解的影響。選取的研究單元是「溫度與熱」，共有三種科學概念相同的文本：「傳統文本」是現行自然與生活科技課文，而將傳統文本依照SFL的「詞彙密度」與「蘊含序列」兩項原則進行改寫後，可得到高詞彙密度的蘊含序列文本(簡稱「蘊含文本」)及低詞彙密度的蘊含序列文本(簡稱「低詞文本」)。研究工具則藉「溫度與熱先備知識測驗」瞭解學習者在閱讀文本前的先備知識，並藉由「溫度與熱閱讀學習成就測驗」瞭解學習者閱讀文本後的閱讀學習成就。共有166名國一學生參加此項研究，每位參與者皆隨機分派上述三種文本之一。另外，另行設計實驗以電腦測量受試者的文本閱讀時間。主要發現如下：(1)在閱讀學習成就方面，受試者閱讀「蘊含文本」或「低詞文本」的學習成就均顯著優於「傳統文本」。(2)若進一步考慮受試者的先備知識，則「低」、「中」先備知識受試者閱讀「蘊含文本」或「低詞文本」的學習成就均顯著優於「傳統文本」；而「高」先備知識受試者閱讀「蘊含文本」的學習成就則是顯著優於「傳統文本」及「低詞文本」，其中造成高先備知識受試者閱讀「低詞文本」的學習成就低落主要反應於「情境理解」與「應用理解」兩項較高層次的理解向度。(3)文本閱讀時間方面，閱讀「蘊含文本」的閱讀時間顯著較「傳統文本」及「低詞文本」長。最後，根據研究的結果，建議往後的教科書編排應多加注意文本的推理關係發展，同時，在科學專有名詞的引介上，應多加分析和解釋現象的形成，以提升學習的效果。

The purpose of this study was to investigate the effect of science texts designed with/out systemic functional linguistics (SFL) on pupils’ reading comprehension. Three versions of “Heat and Temperature” science text were generated. The “Traditional” text was selected directly from current junior high science textbook, and by considering “lexical density” and “implication sequence” two revisions of the former text were resulted: “implication sequence with high/low lexical density” texts. These three texts were identical in terms of science concepts. The “test of prior knowledge of heat and temperature” was revised as the instrument for gathering pupils’ prior understanding of the topic before reading the text, and the “reading comprehension test of heat and temperature” was developed to probe the readers’ understanding after reading the text. Totally 166 7th graders participated in this study, they were randomly assigned to read one of the three texts mentioned above. In addition, the reading time also recorded by using computers. Major findings were as following: (a) Pupils who read “implication sequence with high/low lexical density” text performed better than those read “Traditional” text in reading comprehension test. (b) Secondary, pupils with low/medium prior knowledge out performed in the context of reading “implication sequence with high/low lexical density” text than reading “Traditional” one. In addition, high prior knowledge pupils who read “implication sequence with high lexical density” text performed better than those read “Traditional” text or “implication sequence with low lexical density” text. The unexpected performance of high prior knowledge pupils in reading “implication sequence with low lexical density” text were due to their under performance in the aspects of “situational understanding” and “application”. (c) With respect to the time of reading, reading “implication sequence with high lexical density” text took more time than reading “Traditional” text and “implication sequence with low lexical density” text. In conclusion, the findings suggests that science text writing should take care more on development of text sequencing; moreover, when introducing science technical terms, the development of technicality is needed to promote pupils’ reading comprehension.

中文部分︰
趙元任著，丁邦新譯(民76)：中國話的文法。香港：中文大學出版社。
胡壯麟、朱永生、張德彔(民78)：系統功能語法概論。湖南：湖南教育出版社。
陳霞村(民81)：古代漢語虛詞類解。山西：山西教育出版社。
段德森(民81)：實用古漢語虛詞。山西：山西教育出版社。
顏若映(民81)：教科書內容設計與閱讀理解之認知研究。教育與心理研究，p.101～128。
李世文、陳秋梅(民82)：中文口語與書寫語的比較研究。教學與研究，p.63～96。
許良榮(民83)︰科學課文的特性與學習。科學教育月刊，p.3～36。
顏若映(民83)：文章連貫性對閱讀理解的影響，教師之友。p.12～18。
謝美智(民85)︰語言學術語淺釋。內湖高工學報，p.15～50。
許良榮(民86)︰科學課文結構對於科學學習的影響。國立台灣師範大學科學教育研究所博士論文。
洪文東(民86)︰科學文章的閱讀理解。屏師科學教育，p.14～25。
黃宗培(民87)：從閱讀理解之認知探討教材內容編撰。教育研究，p.49～54。
宋曜廷(民88)︰先前知識文章結構和多媒體呈現對文章學習的影響。國立台灣師範大學教育心理與輔導研究所博士論文。
柯華威(民88)：閱讀理解困難篩選測驗。中國測驗學會測驗年刊，p.1～11。
施能宏(民88)：淺談學童的閱讀理解。國教輔導，p.19～23。
尤雪瑛(民89)︰從篇章語法觀點談英語連接詞的功能及其教法。台北︰政大。(http://highschool.english.nccu.edu.tw/paper.htm)
劉宏文(民90)︰從中文教科書的書寫特質探討科學語言語科學學習之間的關係。論文發表於中華民國第十六屆科學教育學術研討會。高雄︰高師大。(http︰//www.nknu.edu.tw/~gise/17years/E14.doc)
連啟舜(民90)︰國內閱讀理解教學研究成效之統合分析研究。國立台灣師範大學教育心理與輔導研究所碩士論文。
許淑玫(民92)：談閱讀理解的基模理論。國教輔導，p.2～9。
林俊智(民92)：以系統功能語言學觀點探討不同課文結構對科學文章的理解──以溫度與熱為例。國立台灣師範大學科學教育研究所碩士論文。
蕭延霖(民92)：公式在「熱量與比熱」單元中對國中生學習結果影響之研究。國立台灣師範大學科學教育研究所碩士論文。
英文部分︰
Halliday , M.A.K. & Martin , J.R. (1993). Writing science: Literacy and discursive power. London: The Falmer Press.
Halliday , M.A.K. (1993a). Some grammatical problems in scientific English. In M.A.K., Halliday & J.R. Martin (Eds.), Writing science: Literacy and discursive power (p.69～85). London: The Falmer Press.
Halliday , M.A.K. (1993b). The analysis of scientific texts in English and Chinese. In M.A.K. Halliday, & J.R. Martin (Eds.), Writing science: Literacy and discursive power (p.124～132). London: The Falmer Press.
Wignell, P., Martin, J.R. ＆ Eggins, S.(1993c). The Discourse of Geography: Ordering and Explaining the Experiential World. In M.A.K. Halliday, & J.R. Martin (Eds.), Writing science: Literacy and discursive power (p.136～165). London: The Falmer Press.
Veel ,R. (1996)︰Learning how to mean—scientifically speaking：apprenticeship into scientific discourse in secondary school. In F.Christie & J.R. Martin(eds.),Genres and institutions︰social process in the workplace and school (p.161～195). London︰Cassell.
Veel ,R. (1998)︰The greening of school science：Ecogenesis in secondary classrooms. In J.R. Martin ＆ Robert Veel(eds.), Reading Science：Critical and functonal perspectives on discourses of science. (p.114～151). London︰Routledge..
Unsworth ,L. (2000)︰Researching language in schools and communities : functional linguistic perspectives. London : Cassell.
Christie ,F. ＆ Unsworth ,L. (2000a)︰Developing socially responsible language research. In Unsworth , L. Researching language in schools and communities : functional linguistic perspectives (p.1～26). London : Cassell.
Ravelli ,L. (2000b)︰Getting strated with functional analysis of texts. In Unsworth , L. Researching language in schools and communities : functional linguistic perspectives (p.245～274). London : Cassell.
Unsworth , L. (2000c)︰Investigating subject-specific literacies in school learning. In Unsworth , L. Researching language in schools and communities : functional linguistic perspectives (p.245～274). London : Cassell.
Unsworth , L .(2001a)︰Evaluating the language of different types of explanations in junior high school science texts. International Journal of Science Education，p.585～609.
Unsworth , L. (2001b)︰Teaching multiliteracies across the curriculum︰Changing contexts of text and image in classroom practice. Open University Press.