看到点记点吧。摘自 http://www.abcfastphonics.com/
1 One Vowel Not at the End of a Word
When there is only one vowel in a word and it is anywhere except at the end of a word, it usually has a short sound.
cat dog
2 One Vowel at the End of a Word
Where there is only one vowel and it comes at the end of the word, it usually has a long sound.
go he she
3 Two Vowels in a Word Ending With the Vowel 'E'
When there are two or more vowels and the word ends with the vowel 'E', two things happen. The ending vowel 'E' is silent, and the vowel that comes before it has a long sound.
ride side hole wade
4 Two Different Vowels Together in a Word
When two vowel letters are together, the first vowel letter has a long sound and the second vowel letter is silent.
rain tied seal cheat
5 One Vowel Followed by Two Same Consonants
When a word has a vowel followed by two of the same consonants in a row (called a double consonant), a short sound is used for the vowel.
dinner summer pull ? simmer
6 Double Same Vowels
When a word has two of the same vowels in a row (called a double vowel), pronounce them as one vowel, using the long sound. This rule does not apply when 'O' is the double vowel
peek greet vacuum
7 Double 'O' Vowel
When 'O' is a double vowel, it makes different sounds.
pool fool cool door book tool