alisetsy 发表于 17-5-2013 01:29 PM 
我觉得她通常S,Z,C...的发音不正。全部语言都是~~
谢谢你 有华语的吗?
中文的你自己搜索了,我给你的那三个链接也是我刚才google回来的
我给的其中一个链接有指导s和z的发音:
Tips and Suggestions for Helping a Child or Student Say Specific Sounds: /s/ and /z/: “Keep the tiger in the cage”. Both these sounds are made by keeping the tongue inside/behind the teeth. Demonstrate by showing the student how your tongue (the tiger) is inside the teeth (cage) when you say /s/. Let him try using the mirror to check his tongue position. The /s/ and /z/ are ‘sister sounds’ made with the same tongue/mouth position. However the /s/ is ‘voice off’ and the /z/ is ‘voice on’. Teach the student to make /s/, and then tell them to say /z/ ‘make the tiger rattle the cage’. The /z/ sound is a vibration, ‘voice on’ sound. The student can feel the difference in the Adam’s apple and also in vibration on the tongue/teeth.
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