The difference between phonetic H and N teaching plans

H (homophonic) drink? N (homophonic)

H: When pronouncing, the root of the tongue is raised and clings to the soft palate, forming a narrow gap, through which air flows out and rubs into sounds.

N: When pronouncing, the tip of the tongue is pressed against the upper gum, and the airflow passes through the nasal cavity, at the same time, the obstruction of the tip of the tongue is pushed away, and the vocal cords vibrate.

Second, the writing is different.

h？ It is shaped like a bridge or an armchair.

N is shaped like a small arch bridge or a chair without a backrest.

Third, the usage is different.

h:

Warp: wisdom tooth stone

Three Pinyin Festival: ia ua uo uai iao ian iang uang iong

n:

Zero syllable:? Ann English?

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Baidu encyclopedia-hanyu pinyin