1、名词名词变变 Whats this in English?What are these?Its an apple.They are two apples.Whats this?What are these?Its a pen.They are three pens.Whats that?What are those?Its an English book.They are English books.pencilsschoolbagskeyseggsbananasoranges普通普通名词名词不可数名词不可数名词可数名词可数名词单数单数复数复数不规则不规则规则规则cupcups清辅音+s读/s
2、/bedbeds浊辅音+s读/z/daydays元音+s读/z/（1）一般情况下在词尾直接加-sbusbuses /z/foxfoxes /z/watchwatches /z/（2）以s、x、sh、ch结尾的名词，在词尾 加-esbabybabies /z/ladyladies /z/（3）以“辅音字母+y”结尾的名词，把y变为i,再加-es。（3.1）以“元音字母+y”结尾的名词，直接加s。boy-boyskey-keysmonkey-monkeystoy-toysknifeknives /vz/leafleaves /vz/wolfwolves /vz/（4）以f或fe结尾的名词，把f或f
3、e变为v，再加-espotatopotatoes /z/tomatotomatoes /z/heroheroes /z/（5）以o结尾的名词，表示人物、动植物的单词，在词尾加-es。photo photos /z/pianopianos /z/zoozoos /z/（6）以o结尾的名词，表示无生命的物体，在词尾多数加-s。不规则变化不规则变化a deer 一头鹿 two deer 两头鹿 a sheep five sheep one people ten people a Chinese many Chinese 单数复数deer鹿deersheep 绵羊sheeppeople 人，人们peo
4、pleChinese 中国人Chinese（1）单复数同形，例如：a goose three geese a tooth many teeth a foot two feet 单数复数goose 鹅geesetooth 牙齿teethfoot 脚feet（2）改变中间元音，例如：单数复数child 小孩childrenman 男人menwoman女人womenmouse 老鼠mice（3）改变词尾，例如：scissorsglassestrousersjeansshorts（4）下面名词只有复数形式，可用a pair of 表示单数。scissorsglassestrousersjeansshorts单数：There is a pair of scissors on the desk.复数：There are two pairs of scissors on the desk.
