[f][v][s][z][?][?][?][e]摩擦音发音要领:[f][s][?][?]是清辅音,发音时声带不振动。[v][z][?][e]是浊辅音,发音时声带必须振动。发摩擦音时必须注意:(1)软颚抬起,堵住到鼻腔的通道,但口腔通道完全阻塞,留有窄小空隙,气流从中泄出时摩擦或振动成音。(2)摩擦可以延长而发音器官位置不变。 [f] [v] [s] [z] [?] [?] [e] Rubbing sound Pronunciation essentials: [f] [s] [?] [?] is a clear consonant, pronounced vocal cord does not vibrate. [v] [z] [?] [e] is a voiced consonant that vibrates during vocalization. Must pay attention to the frictional sound: (1) soft jaw lifts, blocking the passage to the nasal cavity, but the oral passage completely blocked, leaving a narrow gap, the air flow from the friction or vibration when it leaks into sound. (2) friction can be extended and the position of the sound organs unchanged.