标准英音和美音
标准美音：RP：Received Pronunciation GA：General American
标准英音：RP：Received Pronunciation
美式发音与英式发音的区别
元音区别A
当字母r出现在单词的元音字母组合中时，北美英语会出现独特的卷舌音。
/2r/ /4r/ /ir/ /Ar/ /ur/ /3r/
/2r/ car far /ir/ dear near /Ar/ air /3r/ for more door floor
/Ur/ sure tour poor /jur/ fewer cure /4r/ her earn bird
/2ir/ fire liar buyer /2ur/ hour flower tower power
/3ir/ employer destroyer
Read the following words, while paying to the pronunciation of the /r/.
(1) /2rs/ far
large charge smart
car
(2) /irs/ dear
clear fear cheer here
(3) /Ar/ air pear their where
(4) /3r/ for door pour before
(5) /Ur/ /jUr/ poor tour curefewer
(6) /4r/ her learn word first
(7) /2ir/ firetired higher liarbuyer
dare
more
sure
turn
(8) /2Ur/ hour
flour shower powertower
(9) /3ir/ destroyer
employer
美式发音与英式发音的区别
元音区别B
英语中的元音/2:/在用于/f,7,s/或鼻音前时，美语发为/1/，