G sound: the front of the tongue root is close to the soft palate, blocking the airflow, allowing the airflow to break through the obstacle of the tongue root and burst into sound. The difficulty lies in the coordinated control of strength and muscle when it becomes obstruction.
K sound: the front of the base of the tongue is close to the soft palate, which hinders the airflow. Different from G tone, the breakthrough intensity and delay of airflow are slightly longer after being blocked. The difficulty lies in the instantaneous control of resistance and airflow.
Training methods:
Gargle and cough up water: take a sip of water and look up, just like gargling after brushing your teeth. Don't swallow it. Practice coughing, slowly extend the coughing time and increase the coughing power. The stronger the water, the better. Practice 5- 10 times a day for tens of seconds to several minutes each time. It is necessary to guide children to learn the coordinated movement of muscles in the palatopharyngeal region and gradually experience the feeling of muscle exertion.
After a period of coughing practice, you can't rely on props. You should learn to pretend to cough and practice with the functions of breathing and gas supply. You can start with a weak silent cough, cooperate with air supply, gradually produce sound, and finally complete g/k sound training.
After mastering the pronunciation action, with the correction of pronunciation function, we can carry out intensive pronunciation training, starting with monosyllabic and gradually carrying out disyllabic training, which increases the difficulty and adds three pinyin segments. "The voice is light, the vowels are pronounced quickly, and the three-spelling continuous reading is very smooth." This is a method used in many language flow training, which can be tried for children.
For adults, it is necessary to raise the difficulty threshold appropriately, especially those who have the need of Putonghua test, and also need to increase the practice of tongue twisters.