Explain Coleridge's use of assonance in the first four lines of the poem.

Coleridge's use of assonance in the first four lines of the poem helps grab the attention of the reader, along with setting up the rhyme scheme for the following lines.

(Remember, that assonance is the repetition of the sound of a vowel.)

as much wood as a woodchuck could chuck if a woodchuck could chuck wood.

sadly it cannot chuck wood