Pronunciation skills of nasal sounds before and after Chinese Pinyin N L R It is best to have pictures of tongue position when pronouncing. Thank you ... please help me solve it.

First of all, the landlord should make it clear that these sounds are actually very different, and everyone can actually distinguish them, but they didn't pay attention when pronouncing them.

Let's talk about these three sounds first.

When pronouncing N sounds, the position of the tongue is similar to that of J, Q and X. That is to say, when practicing N, first adjust the position and shape of the tongue to the state of J, and then close your mouth-actually, it doesn't need to be closed, but it helps us practice-vibrating the vocal cords. That is, the feeling of "hmm" when we usually think about problems. Another way to find n is that the landlord will definitely send an. After sending an, if you keep dragging, you will hear a sound like "hmm". This is n.

L's tongue position is slightly backward, which is similar to that of D and T. Just like we practiced N before, adjust the tongue to D first. But don't flick your tongue like D, but slowly let your tongue leave the hard palate and air flow out of your mouth. When air flows out, it will vibrate the vocal cords. This leads to the conclusion that the biggest difference between L, N and L is airflow. N air flows out of the nasal cavity, so the mouth can be closed; But the airflow of l must flow out of the mouth. On the other hand, when N is pronounced, the area where the tongue touches the maxilla is larger and more anterior, while when L is pronounced, only the front end of the tongue touches the hard palate.

Zh, ch, sh, R of tongue-rolling sound all touch the protruding part of the mouth with the tip of the tongue (that is, a protruding bone in the upper part of the mouth), and the mouth shapes of the four sounds are basically the same, but the air flow conditions are different. Note that the tip of the tongue must be tilted and gently touch the transition area between the hard palate and the maxilla. Therefore, if the landlord can send zh, it is not difficult to find the position where R is sent, and the airflow of R also flows out of the mouth. Its position is even behind L, R is more discriminating than N and L, and the timbre is very different. As long as you pay attention to raising your tongue, you can master it well.