1.一般來說,s在元音或濁子音后讀[z},在清子音后面讀成[s],在[t]后與[t]在一路讀成[ts],在[d]后與[d]一路讀成[dz].cups杯子days日子hands手hats帽子2.以s,sh,ch,x結(jié)尾的詞在詞尾加－classes班級buses公共汽車3.以“元音字母＋y”結(jié)尾的詞,加－s,讀結(jié)尾的詞,變y為i,再加－es,讀[iz].es,讀[iz]boxes盒子watches手表作[z];以子音字母＋yboy-boys男孩army-armies部隊story-stories故事factory-factories工場baby-babies寶貝4.以o結(jié)尾的詞,多半加－s,讀[z].kilo-kilos公里photo-photos照片tobacco-tobaccos煙草piano-pianos鋼琴以元音字母＋o結(jié)尾的詞一律加－s,讀[z].zoo-zoos動物園radio-radios收音機(jī)少數(shù)以o結(jié)尾的詞,在詞尾加-es,讀[z].tomato-tomatoes西紅柿hero-heroes豪杰Negro-Negroes黑人potato-potatoes土豆5.以f或fe結(jié)尾的詞,多半把f,fe變成v,再加－es,讀[s].leaf-leaves樹葉thief-thieves小偷wife-wives老婆knife-knives小刀shelf-shelves架子6.不規(guī)矩名詞的復(fù)數(shù)情勢.

(1).經(jīng)由過程變更單詞內(nèi)部元音字母,組成龐雜情勢.man-men須眉woman-women女人foot-feet腳goose-geese鵝tooth-teeth牙齒mouse-mice老鼠child-children小孩（2）.單數(shù)情勢與復(fù)數(shù)情勢雷同sheep-sheep綿羊deer-deer鹿Chinese-Chinese中國人Japanese-Japanese日本身規(guī)矩的名詞復(fù)數(shù)情勢一般是在單詞后加-s或-es.其音法辦法為：情形讀法例詞在/p//t//k//f/等清子音后/s/Cups,hats,cakes,roofs在/s//z//M//CM//DN/等音后/iz/glasses,gaces,roses,brushes,matches,bridges在其它情形下：/z/Beds,days,cities,knives以th收尾的詞原讀/θ/的,加詞尾s后,多讀/z/,例如：mouth/P>7I/-mouths/P>7Iz/path/pa:θz/-paths/pa:Iz/但也有不如許變的,如：month/mΛnθ/-months/mΛnθs/,length/lengθ/-lengths/lengθs/,尚有些詞可變可不變,如：youth/ju:θ/-youths/ju:θs/或/ju:θz/,truth/tru:θ/-truths/tru:θs/或/tru:θz