What are the characteristics of the five vowels of English letters?

In English, five vowels are: a[ei], e[i:] and i[? ai]，o[eu]，u[ju:].

When vowels are pronounced, the vocal cords vibrate and the airflow through the mouth is unimpeded.

Vowels are divided into monosyllables and diphthongs, and the lip shape and tongue position of monosyllables remain unchanged when pronounced. When diphthongs pronounces, he slides from one vowel to another. The difference between vowels depends on the position of the tongue, the degree of opening and closing of the gums, the size and roundness of the lips.

Extended data

There are 48 phonemes in the English International Phonetic Alphabet, including 20 vowel phonemes and 28 consonant phonemes. There are 26 English letters, including 5 vowels, 19 consonants and 2 semi-vowels. Therefore, phonemes, letters and phonetic symbols are interrelated, restricted and influenced each other.

Master the basic pronunciation planning of five vowels and learn to use them flexibly. Sometimes the pronunciation is relative, not absolute, and sometimes there will be some changes.

The pronunciation rules of vowel phonemes should be associated with vowels, vowel combinations, vowel and consonant combinations, and recorded together with vowel phonetic symbols. At the same time, study with phonetic symbols and words. In this way, you can learn how to remember words by spelling, remember and write words according to their pronunciation, and read words according to the characteristics of letter combinations in words.

In this way, only by combining phonemes, letters and phonetic symbols into one, can we really master letters and phonetic symbols, learn to spell words independently, and thus transition to memorizing words.