方言区的人学习普通话一般要有两个过程:首先是学会拼音字母、拼音和北京声调,然后把自己方言中同北京音不一样的音逐渐改成北京音。第一步可在比较短的时间内突击完成,第二步往往需要较多的时间。第二步之所以不能速成,是因为在这个过程中存在着两个困难:第一,读准了孤立的字音,不等于放在句中也能读得准确。譬如n(ㄋ)、l(ㄌ)不分的人学会拼音字母后,分别读“老、脑”时可以读成lǎu(ㄉㄠ)和nǎu(ㄋㄠ),但读“老 People in dialect areas generally have two courses of learning Putonghua: first, they learn pinyin letters, pinyin and Beijing tones, and then gradually change their own dialects into Beijing sounds with different sounds from Beijing. The first step can be completed in a relatively short period of time, the second step often requires more time. The reason why the second step can not be accelerated is because there are two difficulties in this process. First, reading the isolated pronunciation does not mean that it can be accurately read in the sentence. For example n (ㄋ), l (ㄌ) regardless of people learn pinyin letters, respectively, read ”old brain“ can be read as lǎu (ㄉ ㄠ) and nǎu (ㄋ ㄠ), but read ”