Pronunciation LabEnglish pronunciation
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Guided practice · General American English

English Sound Laboratory

Initial /θ/ versus /s/ control

Build initial /θ/ control against /s/ and return to the original sentence.

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Practise with trustworthy examples. Reviewed audio is used where it is available. On other items, you can still record, listen back and retry. Pronunciation feedback appears only where this lab has a reviewed feedback check.

See · understand · hear in reviewed context

Move one place forward: teeth for /θ/, ridge for /s/

Both targets are voiceless fricatives with continuous oral airflow. The main modeled difference here is place: /θ/ is dental; /s/ is alveolar. These diagrams are target models, not measurements of your mouth.

Target/θ/
Schematic target articulation. It is not a measurement of the learner's mouth.
Place
dental
Manner
fricative
Tongue tip
lightly at or between teeth
Airflow
continuous oral
Voice
voiceless

Reviewed /θ/ cue: For /θ/, place the tongue tip lightly at or between the teeth and let air flow continuously without voicing.

Contrast/s/
Schematic target articulation. It is not a measurement of the learner's mouth.
Place
alveolar
Manner
fricative
Tongue tip
near alveolar ridge
Airflow
grooved oral
Voice
voiceless
What you are hearing: these short clips come from the reviewed sentence at the end of this lab. Use them as context examples for the sound.