人的发声是人类有机天性中自然形成的能力，从婴儿脱离母体降生人世的那一刻起，婴儿的第一声啼哭便是发声的开始，可见人的发声象人的呼吸一样，是人类肌体的一种本能。说话作为一种有声语言，是任何一个发声器官正常的人都能逐渐学会的。然而人类处在初民阶段时，说话即口头 Human voice is the natural formation of human nature, the ability to emerge from the baby born from the moment the mother born, the baby’s first cry is the beginning of the voice, it can be seen human voice like human breath, human body A kind of instinct Speaking as a phonetic language can be gradually learned by anyone with a normal vocal organ. However, when humans are in the early stage, they speak verbally