7、就是本项名词为单音节时,加了“-es”便成为双音节的单词。class[kla:s]→classes[kla:siz]班级phrase[freiz]→phrases[freiziz]短语dish[di]→dishes[diiz]盘,碟garage['gærɑ:]→garages['gærɑ:iz]车库watch[w ]→watches[ w iz]手表bridge[bri]→bridges[briiz]桥梁(2)名词词尾发音为[p,t,k,f,θ]等清辅音时,加“-s”并发[-s]音。例如:c