1、　 This paper explorse .within the levelt modle and template theory.The correclate between the use of chunks of sentence builders and the development of fluency Of English majors at USTC.in this research,speach simplesfro

2、m three various proficiency groups are examined , also studied In detail． And further analyses also lndicate that fluent subjects can use， store and retreve chunks of sertence builders as one single unite whilenon－flue

3、nt ones cannot，which can be attested by the fact that fluent suUects do not or seldom pause frecquently within chukas of sentence builders and thus not break them up．These findings may surggest that the use of chunks of