First, the front and rear nose practice skills:
1, oral and nasal pronunciation: when an, en and in pronounce "-n", the tongue stretches forward, and the tip of the tongue is close to the front of the palate, that is, the upper gum, and the vocal cords vibrate, allowing air to flow out of the nasal cavity. An, en and in are synthesized by a, e, I and nasal vowel "n" respectively. For example, the pronunciation of an, starting with a, is the front A, and then the tip of the tongue quickly abuts the front of the palate, allowing air to flow out of the nasal cavity. The key to good pronunciation is to lengthen the ending pronunciation. The rest of the nasal sounds can be pronounced like this.
2. Pronunciation of postnasal sounds: ang, eng, ing, ong, Ang, uang and ueng are all postnasal vowels, and the "NG" at the end of them is called postnasal vowel. When the "-ng" sound is made, the tongue retracts, the base of the tongue abuts against the back of the upper palate, the soft palate descends, forming an obstruction, and finally the airflow comes out of the nasal cavity.
Ang, eng and ing are synthesized by a, e, I and nasal rhyme "ng" respectively. For example, when sending ang, send A first, and this A is the back A, then the tongue retracts, and the root of the tongue is raised against the soft palate (the root of the tongue retracts), so that air can come out of the nasal cavity.
2. Pronunciation methods of three typical nasal vowels:
1, an: an is pronounced from the front "a", and the tip of the tongue moves backward from the upper and lower teeth to the upper gum, with the tongue slightly raised and the tongue extended forward. When the radio is on, Ann's upper and lower teeth are closed.
2.ang: Pronunciation begins with "A", the tip of the tongue leaves the back of the lower teeth, the tongue retracts, the root of the tongue is raised to contact with the soft palate, and the tongue retracts. When you watch ang Radio, your mouth is slightly open.
3.en: Pronunciation starts from the position of E tongue, which is flat. Finally, the tip of the tongue also touches the upper gum to end the pronunciation. After pronunciation, the upper and lower teeth are closed.
4.eng: Pronunciation starts from E and then contracts, the root of tongue rises and the soft palate falls. When listening, the mouth is slightly open and the upper and lower teeth are not closed.
5.in: Pronunciation begins with I, and the upper and lower teeth are always motionless, but it is obvious that the tip of the tongue moves from bottom to top. When receiving the radio, press the tip of your tongue on your upper gum and don't flinch.
6. ing: Just like when I started to send it, the tip of my tongue left behind my lower teeth and my tongue moved backwards. Be careful not to lower the position of the tongue from I to N and ng, and don't pronounce ien and ieng.