The research on English teacher talk repetition has been done in the perspectives of the categories and functions of teacher talk repetition. The study shows that there are some similarities and differences of teacher talk repetition between the two corpuses:(1) The total numbers of teacher talk repetition in its categories are very similar. The rates of teacher talk repetition of teacher-student interaction and analyzing language points in the Corpus QGMS are higher than those in the Corpus GXMS. But the r...