1、名词单数与复数名词单数与复数w1.名词?名词是表示人与事物名称词,它既能够表示详细东西,也能够表示抽象东西。w2.名词按数分为:可数名词(单数和复数相互转化)不可数名词(列出你知道不可数名词)第1页常见不可数名词常见不可数名词lfood-ricebreadmeatfishldrink-waterjuicecoffeeteamilklothers-advicemoneypeopleworkhelpglasspaperclothsandsoaphopeworkweatherinformationnews注意:1.不可数名词普通没有复数形式,只有单数形式。2.不可数名词前面不能用不定冠词a/an。第
2、2页-What are these?-Whats this?-Its a pen.-They are pens.第3页-What are those?-Whats that?-Its an English book.-They are English books.第4页单数复数可数名词如何变化?规则改变不规则改变规则改变规则改变第5页1.普通情况下,直接在词尾加-s组成复数形式。carbasketballcarsbasketballsbookbooks第6页box2.以s,x,ch,sh等结尾名词,在词尾加-es组成复数形式。boxesclassclasseswatchwatchesbrush
3、brushessxshch2.第7页3.以“辅音字母辅音字母+y”结尾名词,变“y”为“i”,再加-es组成复数形式。ncitycitiesnfamilyfamiliesnpartyparties第8页4.以“元音字母元音字母+y”结尾名词,直接在词尾加-s组成复数形式。boyboysdaydaysoayy.第9页5.以f或fe结尾名词,先将f或fe变成v,再加-es组成复数形式。knife kniveswolfwolves.注意:roofroofs第10页6.以o结尾名词,有加-s,有加-es组成复数形式。photophotosheroestomatoeszooszootomato(西红柿)
4、hero(英雄).第11页以o结尾名词,表示无生命事物名词,词尾加-s,表示有生命事物名词,词尾加-es。加-es名词有:potato,tomato,hero第12页vSumup:1.普通情况下,直接在名词词尾加-s.2.以s,x,sh,ch结尾名词,在词尾加-es.3.以辅音字母加y结尾名词,要变y为i再加-es.5.以f或 fe结尾名词,先将f或 fe变为v,再加-es.6.以o结尾名词,表示无生命事物名词加-s,表示有生命事物名词加-es。4.以“元音字母+y”结尾名词,直接在词尾加-s.第13页7.单数复数不规则改变 例词:例词:manmenwomanwomen第14页childchi
5、ldrenfootfeet第15页8、单复数同形单复数同形 ,保持原音,保持原音。例词例词:fishfish第16页sheepsheepcattlecattledeerdeer第17页给以下可数名词加复数bird-card-lady-orange-ruler-photo-lady-boy-leaf-mouse-tooth-cat-wife-shelf-key-bus-hero-Chinese-dictionary-fox-girl-zero-party-cup-第18页this that I you he/she/it am/is thesethoseweyoutheyare 单数单数 复数复
6、数第19页句子单数变复数句子单数变复数1.This is a book.2.That is an eraser.3.It is a red apple.4.I am a boy.5.He/She is a teacher.6.Whats this?These are books.Those are erasers.They are red apples.We are boys.They are teachers.Whatre these?第20页Praticel1.Weneedmore_(people)toattendit.l2.Thereissome_(food)inthebasket.l3._(knife)areusedforcuttingthings.l4.Iseeyouhaveafewwhite_(hair)l5.Thisdresscostme20_(dollar)第21页名词单数变复数后名词单数变复数后s/es 读音读音1.在清辅音后读在清辅音后读/s/2.在元音和浊辅音后读在元音和浊辅音后读/z/3.在在/s/z/t /d /后后 读读/iz/4.在在/t/后读后读/ts/,在,在/d/后读后读/dz/desks mapsbrothers pensclasses,watches,orangescats,friends 第22页