英语：名词单数变复数课件精编版.ppt

1、名词的单数与复数名词的单数与复数w1.名词？ 名词是表示人与事物名称的词，它既可以表示具体的东西，也可以表示抽象的东西。w2.名词按数分为： 可数名词（单数和复数的相互转化） 不可数名词（列出你知道的不可数名词）常见的不可数名词常见的不可数名词lfood-rice bread meat fishldrink-water juice coffee tea milk lothers-advice money people work help glass paper cloth sand soap hope work weather information news注意：1.不可数名词一般没有复数形

2、式，只有单数形式。 2.不可数名词前面不能用不定冠词a / an 。-What are these?-Whats this?-Its a pen.-They are pens.-What are those?-Whats that?-Its an English book.-They are English books.单数复数可数名词如何变化？规则变化不规则变化规则变化规则变化1.一般情况下，直接在词尾加-s构成复数形式。carbasketballcarsbasketballsbookbooksbox2. 以s, x, ch, sh等结尾的名词， 在词尾加-es构成复数形式。boxescla

3、ssclasseswatchwatchesbrushbrushessxshch2.3.以“辅音字母辅音字母+y”结尾的名词，变“y”为“i”，再加-es构成复数形式。ncitycitiesnfamilyfamilies npartyparties4. 以“元音字母元音字母+y”结尾的名词，直接在词尾加-s构成复数形式 。boyboysdaydaysoayy.5. 以f或fe结尾的名词，先将f或fe变成v，再加-es构成复数形式。 knife kniveswolfwolves.注意：roofroofs6. 以o结尾的名词，有的加-s, 有的加-es构成复数形式。photophotosheroes

4、tomatoeszooszootomato(西红柿)hero(英雄).vSum up:1.一般情况下,直接在名词词尾加-s.2.以s,x,sh,ch结尾的名词,在词尾加-es. 3.以辅音字母加y结尾的名词，要变y为i再加-es. 5.以f或 fe结尾的名词，先将f或 fe变为v,再加-es.6.以o结尾的名词,表示无生命事物的名词加-s, 表示有生命事物的名词加-es。4.以“元音字母+y”结尾的名词，直接在词尾加-s . 7.单数复数的不规则变化 例词：例词： manmen woman women childchildren foot feet 8、单复数同形单复数同形 ，保持原音，保持原

5、音。 例词例词： fish fish sheep sheep cattle cattle deer deer给下列可数名词加复数 bird- card- lady- orange- ruler- photo- lady- boy- leaf- mouse- tooth- cat- wife- shelf- key- bus- hero- Chinese- dictionary- fox - girl- zero- party- cup-this that I you he / she / it am / is thesethoseweyoutheyare 单数单数 复数复数句子单数变复数句子单

6、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 ?Praticel1. We need more_(people)to attend it.l2. There is some_(food) in the bask

7、et. l3. _(knife) are used for cutting things.l4.I see you have a few white_(hair) l5.This dress cost me 20_(dollar)名词单数变复数后名词单数变复数后s / es 的读音的读音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