The　articulatory　apparatus　of　a　human　being　are　contained　in　three　important　areas:　the　pharyngeal　cavity—the　throat,　the　oral　cavity—the　mouth,　and　the　nasal　cavity—the　nose.人类的发音器包含在三个重要的位置:咽腔—喉咙,口腔—嘴,鼻腔—鼻子。英语语音分为辅音和元音,可以通过如下表巧记。(二)PhonologyPhonology　studies　the　rules　governing　the　structure,　distribution,　and　sequencing　of　speech　sounds　and　the　shape　of　syllables.　It　deals　with　the　sound　system　of　a　language　by　treating　phoneme　as　the　point　of　departure.　There　are　some　important　definitions　in　phonology　that　we　should　pay　more　attention.