Who investigated the problems of phoneme theory in the languages?

• L.V. Shcherba

• I.A. Boudouin de Courtenay

• V.V. Vinogradov

• I.R.Galperin

• I.V. Arnold

Name the stages of articulation of the English speech sounds?

• interpenetration of stages

• sound alternations

• the on-glide

• the off-glide

• merging of stages

Name the degrees of assimilation of English sounds:

• progressive

• incomplete

• complete

• double

• regressive

According to the stability of articulation English vowels are subdivided into …

• open vowels

• diphthongs

• central vowels

• diphthongoids

• plossives

What processes can cause sound alternations?

• articulation

• word building.

• vowel shift

• accommodation

• assimilation

Find the cases of vowel alternation:

• write - wrote - written

• loss - lose

• bath - bathe

• speak - speech

• sing - sang - sung

Find the cases of consonant alternation:

• write - wrote - written

• important - importance

• sing-sang-sung

• speak - speech

• foot - feet

Find the cases of vowel-consonant alternation:

• man - men

• live - life

• loss - lose

• take - took - taken

• foot - feet

What are the two kinds of breathing?

• inhalation

• exhalation

• duration

• tembre

• tempo

Name the significant variations of Intonation:

• tempo

• tembre

• exhalation

•  phrase

• syllable