2、复数的规则变化(情况,构成方法,读音,例词)a.一般情况在名词后加-s清辅音后读/s/map-maps浊辅音和元音后读/z/bag-bags/car-carsb.以s,sh,ch,x等结尾的名词加-es读/iz/bus-buses/watch-watches/brush-brushes/box-boxesc.以ce,se,ze,等结尾加-s读/iz/license-licensesd.以辅音字母+y结尾的名词把变y为i再加es读/z/baby---babiese.以o结尾的名词,变复数时:1).加s,如:photo---photos piano---pianos rad