/i:/发音规则:eeeaeieei y
单词举例:threetreegreensheepmeetbeef seeeattea meat leave leadteacherspeakcleanpleasehe shemepiece receive twenty
单词举例:sit pig bigitis littlesixmanyhappydictionary delicious
3 /ɔ:/发音规则:alor auourar
4 /ɒ/ 发音规则:oa
单词举例:on hot lotfoxboxdogrockwantwash watch
5/u:/ 发音规则:ooou