参考译文
As Chinese ban society experienced various degrees of division and unification in the process of development，the dialects gradually emerged．Modem Chinese has numerous dialects spreading widely among various regions．The differences among dialects are apparent，which are shown in three aspects，that is pronunciation， vocabulary and grammar，and the most notable difference lies in pronunciation． However，the dialects follow the same rules correspondingly with the Chinese language，also have similarities in vocabulary and grammar with it．so none of which truly exists as a unique language．Nowadays，the linguist experts have not reached a consensus as to how to categorize these modem Chinese dialects，but the majority of people argue that there are seven major dialects．
难点注释
1．第一句中，“出现”实为“经历”的意思，应该译为experienced。
2．第二句中，“他们分布的区域很广”翻译为现在分词短语作状语，这样比较符合英语  的语言习惯。
3．第三句中，“尤为突出”在这里应理解为“最显著的不同”，可翻译为the most notable difference。
4．第四句中，由于意群与第三句接近，可以用However连接，与第三句形成转折关系。
5．第五句中，“语言学界”比较抽象，可进行具体化处理，翻译为the linguist experts； “七大方言”可翻译为seven major dialects。