It’s easy to see, and the TH sound in English is usually the easiest sound for ESL students to make using American English pronunciation.
To make TH stick the tip of your tongue right between your upper and lower teeth in the front of your mouth. I tell students “bite your tongue and blow”. The air comes down the center of your tongue and out your mouth. You don’t have to stick your tongue out very far. Just a stick it out a little bit between your upper and lower teeth.
Words like thank you, and with have no vocal chord vibration (called “voiceless th”)
Words like there and the have vocal chord vibration (called “voiced th”)
If you don’t stick it out far enough your TH will sound like an S. I often here Persian students say “Sank you very much!”
If you tap it on the bumpy spot behind the teeth, your TH will sound like a D or a T, and you will say “Mudder”, “Brudder” and “Udder” for “Mother” “Brother” and “Other”.
Try these voiceless TH words. Listen to the voiceless TH words here.
- thank you
Try these voiced TH words. Listen to the voiced TH words here.