大学英语四级考试采取的英式发音与美式发音结合的所谓“国际发音”方式。 在考试中大家会听到一男一女，一英一美的交替变换发音的奇特现象。
美式发音：General American (GA) 英式发音：Standard British Received Pronunciation
元音区别：
1） 元音 r 当字母“r”与元音字母组合时，美语会出现卷舌音，而英式英语则不会。 far car door of course Tips： 发卷舌音时必须出现元音和字母 r 的组合，单独出现的元音不能发卷舌音。 idea nervous umbrella
Practice： 1. [ar] far car large charge smart 2. [ir] dear clear fear cheer here 3. [εr] air dare pear their where 4. [ɔr] for more door before 5. [ur] [jur] sure poor tour cure fewer 6. [ər] her turn learn word first 7. [air] fire tired higher liar buyer 8. [aur] hour flour shower power tower 9. [ɔir] destroyer employer
2）英式英语中的长元音[ɔ:]和短元音[ɔ]在美语中读作[a]。 bought talk ball caught hot not box
Practice： coffee water caught law bought boss tall talk lawyer fought walk ball cause draw daughter August saw ought flaw Paw
3) 英式发音中的[ʌ]在美式发音中读成[ə] but love come hurry up courage current
4) 英式发音中的[a:]一定条件下可转换成美式发音[æ] [f] [a:] [s] [æ] half ask bath [θ]
