In writing process students or reader are not aware about how the authors constructed
the clause in the sentence and how the authors explore their idea in the texts. Furthermore,
this research have aimed to analyze on how are textual meaning applied in the dialogue of
English textbook for senior high school at X grade.
This research used descriptive qualitative by doing content analysis. This research
discussed about thematic analysis applied in the dialogue. The data in this research were 21
dialogues from English textbook entitled Bahasa Inggris SMA/MA/SMK/MAK KELAS X
Edisi Revisi 2017. The researcher analyzed Theme-Rheme structure and theme types using
thematic analysis based on Halliday‟s theory. The data collection was carried out through
document analysis and the analysis used Lodico procedures.
The result of research reveals that how are textual meaning applied in textbook senior
high school at X grade, the author of textbook are used three kinds of Theme types. First is
Topical Theme, second is Interpersonal Theme and the third is Textual Theme. Furthermore,
the researcher found that the authors considered to use Topical or Ideational Theme for
making dialogue in a clause that was 236 times (Unmarked: 233; Marked: 3). Then followed
by Textual Theme was found 60 times (Continuity: 38; Conjunctive: 22), the last was
Interpersonal Theme only 23 times (Finite: 18; Polarity: 2; Comment: 3; whereas Mood
Adjunct and Vocative were not found in all of the dialogues).