ural ²

复数名词的读音可分五种情况：

A. 在 $[p], [t], [k], [f]$ 等清辅音后复数名词词尾-s 读清辅音 $[s]$ :

books[ buks] maps[ mæps] months[ mʌnθs]

B. 在 $[b], [d], [g], [v], [\partial]$ 等浊辅音后，复数名词词尾-s 读浊辅音 $[z]$ ：balls [bɔːlz] dogs [dɒgz]

C. 在 $[s], [z], [\int], [ts], [d3]$ 等丝音后，读作 $[iz]$ :

[s]: buses [ˈbʌsiz] boxes [ˈbɔksiz]

[z]: sizes ['saiziz]

[tʃ]: churches ['tʃə:tʃiz] watches ['wɔtʃiz]

[dʒ]: pages ['peidʒiz] oranges ['ɔrɪndʒiz]

D. 在元音后, 复数词尾-s 读作[z]: days [deiz] plays [pleiz]

E. 在[t], [d]音之后, ts, ds 或 tes, des 要分别读作[ts]和[dz]: bets [bets] plates [pleits] beds [bedz] birds [bə:dz]