“信号语言”指的是人们借助某种物,或借助自身的形体动作传达信息的无声语言。 人类使用信号语言由来以久,如用摇头、点头、摆手、招手等形体动作表达意愿的方式,就可能产生在遥远的洪荒时代。不过,信号语言也是伴随社会进步而发展的,即便在现代社会,人们依然离不开充当语言的各种信号。举例来说,用手势表达的手语,航 “Signal language” refers to the silent language in which people use certain things or convey their own physical movements. Mankind’s use of signaling language for a long time, such as shaking his head, nodding, waved his hand, beckons and other forms of action to express their wishes, may be generated in the distant era of prehistory. However, the signal language is also accompanied by social progress and development, even in modern society, people still can not do without a variety of signals to act as a language. For example, the sign language, expressed by gesture