话语与伴随手势的数量协同问题长期缺乏实证研究数据支持。在功能协同（同样的语义和语用功能）、结构协同（同在支架话序中）的前提下，本研究使用语料库量化研究方法，探讨了语力话语形式（powerful language forms）与其伴随手势的数量协同机制。研究结果发现，在相同教学功能语境之下，语力话语与伴随手势数量比小于1.3:1 大于1:1.3之间时，能实现最佳的交际效果；反之，则会对交际效果产生消极作用。

There is a long lasting vacancy in gesture study as to the problem of quantity alignment between speech and their accompanying gestures. By comparing the amount of powerful language forms and that of their co-speech gestures in the same functional interaction organization - scaffolding sequence, the present study attempts to shed lights on a wonder in gesture use – will gesture use impede communication, and proposes that a ratio of 1: ± 1.3 between the amount of speech and that of their co-speech gestures might be an ideal consideration in the speech-gesture cooperation.