Pronunciation exercises: /θ/ vs /t/

/θ/ is a dental consonant: the tongue is pressed against the upper teeth. /θ/ is a fricative, it can last a long time.

/t/ is a an alveolar consonant: the tongue touches the part of the mouth behind the upper teeth. /t/ is a stop consonant. It lasts a short time.

/θ/
Initial pronunciation of /θ/:
 * thanks, thing, think - thought

Final pronunciation of /θ/:
 * both, growth, health, month

Middle pronunciation of /θ/:
 * anything, everything, nothing, something
 * author, ethnic, healthy, mathematics

People whose language lacks /θ/ may find it particularly difficult to pronounce /θr/
 * anthropology, arthritis, thread, threat, three, thriller, throat, throne, through, throw - threw

/θ/ and /r/ in different syllables
 * bathroom

/t/
Initial pronunciation of /t/:
 * take - talk - team - technology - tell - time - today - together - town - train - travel - try - turn - type

Final pronunciation of /t/:
 * about - but - different - get - great - government - just - last - lot - meet - next - part - point - put - want - what - write

Middle pronunciation of /t/:
 * between vowels: city - later - letter - matter - political - return - security - water
 * other: between - country - its - little - stand - still - stop - story - study - system - understand

/θ/ vs /t/
Initial pronunciation
 * thank - tank; theme - team; thin - tin; three - tree; threw/through - true

Final pronunciation
 * bath /bæθ, bɑːθ/ - bat /bæt/; both - boat; death - debt; faith - fate; forth - fort; path - pat;

Spanish L1
See IPA phoneme /θ/ § Latin_America.