Lisa美式口语：https://www.bilibili.com/video/av13469333
一、美式元音
/i/ /ɪ/ /ei/ /ɛ/ /æ/
/ɑ/ (/ʌ/ /ə/) /ɔ/ /ou/ /ʊ/
/u/ /ər/ /aɪ/ /aʊ/ /ɔɪ/
难点：
/i/ please see meat believe
/æ/ apple man stand angry
/ʊ/
元音规则（一）Tense and Neutral Vowels
中性元音：/ɪ/ /ɛ/ (/ʌ/ /ə/) /ʊ/
元音规则（二） "sit" or "seat"?
/i/ ee ea ie ei
/ɪ/ i y
feet-fit leave-live sleep-slip these-this
元音规则（三）"cop" or "cup"
/ɑ/ o ɑ
(/ʌ/ /ə/) u o ou
shot-shut Don-done lock-luck cop-cup not-nut robber-rubber
元音规则（四） "pool" or "pull"
/u/ oo ue
/ʊ/ oo ould u
fool-full Luke-look pool-pull
元音规则（五）/æ/ - as in "apple"
apple angry man fat dance Los Angeles random answer
元音规则（六）/ɔ/ as in "ball"
al tall small always
au automobile August
aw saw law awful
元音规则（七） /ou/ as in "most"
o post moment go
ow flow slow show
oa road boat soap
元音规则（八）/ər/ as in "her"
er her teacher
ar grammar
ear learn heard
ir bird first girl
or work
ur nurse hurt
元音规则（九）Stressed Vowels
banAna CAnada biOlogy phoTOGraphy
I lOve it.
I have to cAll him.
You are really tAll
It's hOt.
I got a jOb at the hOspital.