文档介绍：“s”,如map→maps,bag→bags等;,sh,ch,x等结尾的词加“es”,如bus→buses,watch→watches等;+y结尾的词,变y为i加es,如baby→babies等;以元音字母+y结尾的名词变复数时,直接加s变复数,如monkey→monkeys,holiday→holidays,storey→storeys(楼层);:a)加s的名词有:photo→photos,piano→pianos,radio→radios,zoo→zoosb)加es的名词有:potato→potatoestomato→:a)加s的名词有:belief→beliefsroof→roofssafe→safesgulf→gulfsb)去掉f,fe加ves的名词有:half→halvesknife→knivesleaf→leaveswolf→wolveswife→wiveslife→livesthief→thieves名词单数变复数口诀:规则变化:名词单数变复数,直接加-S占多数,s,x,z,ch,sh来结尾,直接加上-+y在结尾,变y为i再加-es词尾是f或fe,加-s之前先变ve词尾字母若是o,无生命的加-s,有生命的加-es,要加-es请记好,hero,tomato,:男人女人a变e,鹅足牙oo变ee,老鼠虱婆也好记,ous变ic:孩子加上ren,鱼鹿绵羊不用变。练习题:写出下列名词的复数形式:bus--sheep--dress--story--watch--tomato--orange--fish--appletree--pencil-box--goose--baby--student--child--boy--girl--shoe--leaf--candy--peach--knife--potato--man--woman--foot--piano—答案:bus--busessheep_sheepdress__dressesstory_storieswatch_watchestomato—tomatoesorange—orangesfish—fishappletree__appletreespencil-box_pencil-boxesgoose__geesebaby__babiesstudent__studentschild—childrenboy__boysgirl_girlsshoe--shoesleaf—leavescandy__candiespeach__peachesknife_knivespotato—potatoesman__menwoman_womenfoot__feetpiano--:有生命的以o结尾的名词变复数时,词尾加es,凡无生命的以o结尾的名词变复数时,词尾加s。口诀1:黑人和英雄吃土豆和西红柿要加es    其余全部加s解释:negroesandheroeseattomatoesandpotatoes口诀2:你在“zoo”里    看见一根“bamboo”    上面挂着一张“photo”    所照的