目前,除了湘西等地区少数西南官话的古全浊声母部分保留浊音以外,其他官话方言的古全浊声母均已清化。历史文献和现代汉语方言材料表明,官话方言古全浊声母清化时,在声类、调类之间体现出不平衡性。声类方面,浊擦音的清化早于浊塞音浊塞擦音,这也是汉语方言古全浊声母清化的共性。调类方面,官话方言以声调的平仄为顺序清化,浊声母平声字先清化,浊声母仄声字后清化,这与官话方言古全浊声母平声字和仄声字的调值高低有关。 At present, ancient voiced consonants in other Mandarin dialects have all been cleared apart from the voiced ones remaining in the ancient voiced initials of a few southwestern tongues in areas such as western Hunan. Historical documents and modern Chinese dialect materials show that when the ancient voiced initials of Qing dynasty are purged, their imbalances are found in the categories of sound and tone. In terms of sound category, the cleanup of the cloud fricative is earlier than that of the voiced obscuration, which is also the generalization of the ancient voiced consonants in the Chinese dialect. In terms of tonality, the dialect of the native language is cleared in the order of the tone of the tone, and the voiced sound of the voiced sound is cleared first and then the voiced sound of the voiced sound is cleared, which is related to the tone value of the flat voiced and unvoiced sound of the ancient dialect.