名词单数变复数口诀1(一)规则变化名词单数变复数,直接加-s占多数;book-bookspen-penss,x,z,ch,sh来结尾,直接加上-es;dress-dressesbox-boxesbuzz-buzzeswatch-watchesbrush-brushes词尾是f或fe,加-s之前先变ve;leaf-leaveswife-wivesknife-knives2辅音+y在词尾,把y变i再加-es;baby-babiescity-cities元音+y在词尾,只加s就足够boy–boysday–days词尾字母若是o,常用三个已足够,要加-es请记好,hero,tomato,potato。美国黑人和英雄爱吃土豆和西红柿。negro-negroeshero-heroespotato-potatoestomato-tomatoes其余o结尾的词加s,photo-photos3(二)不规则变化男人女人a变e,足牙oo变ee;man-menwoman-womenfoot-feettooth-teeth孩子加上ren,鱼鹿绵羊不用变child-childrenfish-fishdeer-deersheep-sheep4※this---these(这些) ※that-- those(那些)5
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