参考答案：

解析：The main FLT methods used in each period in China are: (1) The main method used at the turn of the last century was a six-step method following the principle that students should gain new in-sights through restudying old material. The six-steps are: recitation; questions and answers; writing practice; presentation; spelling practice; sentence making. (2) Grammar-Translation method was used in the early 20th century. (3) In the 1950s, the Russian methodological principles were followed closely. The method used then was "three-centred" : classroom-centred; teacher-centred; textbook-centred. (4) The method used in the late 1980s, was mainly Audiolingual Method in junior middle schools and a combination of andiolingualism and traditionalism in senior middle schools. (5) The decade of 1990s saw the influence of the communicative movement in China. The main method used was a composite format based on functionalism and structuralism. The representation of this integration is the five step method: revision, presentation, drill, practice and consolidation.