1. 一般情况直接加s。

如：map-maps boy-boys girl-girls pen-pens bag-bags car-cars（清辅音后读/s/，浊辅音和元音后读/z/，/s/、/z/、/dʒ/等音后发/iz/)2、以s, sh, ch, x结尾加es，读/iz/。例如：bus-buses、watch-watches、box-boxes、brush-brushes3、以辅音字母+y结尾，变y为i再加es，读/iz/。例如：baby-babies、city-cities、country-countries

不属于不规则名词，不加es，不变y为i ，不变f/fe为v的都是直接加s变复数。

直接加s的单词，例如：teacher -teachers ，student- students，worker-workers，way -ways，road-roads，school-schools， person-persons ，doctor-doctors，actor-actors，apple-apples，pear-pears，bear-bears，bee-bees，orange- oranges，lemon-lemons，goat-goats，dog -dogs，cats。

means,members,news,names,numbers

numerous,brothers,books,boulevards

chums,bluebirds,lives,kinds,knows,jobs

jumps,hugs,hands,happens,grabs,feels

gorgeous,fans,days,details,depends

donuts,always,apples,pictures,photos

parents,pants,officers,yarns