The tip of the tongue before the sound of mandarin (also called flat lingual) z, c, s and after the tip of the tongue (also called become warped lingual) useful, ch, sh initials of articulation of the tandem, the two completely opposite, many people will put the tip of the tongue after sino-japanese sound before into the tip of the tongue.
If you want to change this situation, you must first master the pronunciation characteristics and rules of these two types of initials, and then you should be able to accurately distinguish the different words that contain two types of initials.
The specific method of differentiation is:
Firstly, the relationship between Chinese and English is distinguished. The combined rules of putonghua sound and rhyme show:
(1) in the words of ua uai uang, the initials are zh ch sh, such as “grab, play, pull, zhuang, bed, double”;
(2) with en finals, in addition to how, and (worse), cen “, “words, words with eng finals, in addition to” layer, “and to” have “to do less number of phonetic element, the rest of the word after the initials are the tip of the tongue. (3) in the word of the ou, the remaining initials are ch, except for the number of “pooled” and so on.
(4) in the words of uen, only the initials of “shun, suck, shun, and blink” are sh, and the other initials are s;
(5) in the word “ong”, the initials are s, not sh.
Secondly, according to the phonetic function of the phonotype, we can deduce the pronunciation of a group of words with the sound by using the known side. There are exceptions to this method, but you may as well try it, but be careful to avoid any discrepancy.