可数名词单变复变化规律

1、名词单数变复数 Betty 2017.5.13Whats this in English?Its an apple.What are these?They are two apples.-What are these?-Whats this?-Its a pen.-They are pens.-What are those?-Whats that?-Its an English book.-They are English books.backpackswatchesorangespens-Whatre these ?-Theyre .mapscaseskeys-Whatre those ?-

2、Theyre .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1.一般情况下，直接在词尾加-s构成复数形式。carbackpackcarsbackpacksbookbooksnamepencardrulernamespenscardsrulersbox2. 以s, x, ch, sh等结尾的名词， 在词尾加-es构成复数形式。boxesclassclasseswatchwatchesbrushbrushessxshch.busbusesfoxesfox(狐狸)dish(盘子)dishes3. 以“辅音字母+y”结尾的名词，应改y为i，再加-es。familyfamiliescomedie

3、scomedy(喜剧)yyld.4. 以“元音字母+y”结尾的名词，直接在词尾加-s构成复数形式 。boyboysdaydaysoayykeycitiesstrawberrieskeyscity(城市)strawberry(草莓)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。knifekniveshalfhalves“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf)把“狼”(wolf)劈成两“半”(half)。wivesleaveswolveswife(妻子)leaf(树叶)wolf(狼)roof(屋顶)roofsroofthi

4、efthieves“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf)把“狼”(wolf)劈成两半“半”(half)。巧记：6. 以o结尾的名词，有的加-s, 有的加-es构成复数形式。photophotosheroestomatoeszooszoo(动物园)tomato(西红柿)hero(英雄)以o结尾的名词,表示无生命事物的名词，词尾加-s,表示有生命事物的名词，词尾加-es。 加-es的名词有: potato, tomato, hero巧记:英雄爱吃 土豆炖西红柿。可数名词复数形式的构成 1名词特点词尾加法词尾读音方法例词一般情况下 加-s1. -s

5、在清辅音后读s2. -s在浊辅音后读z3. -s在元音后读z4. 以音素 结尾的，读izdeskspearsapples以-s, -x, -sh, -ch 结尾的classesdishes加-esoranges可数名词复数形式的构成 2名词特点词尾加法词尾读音方法例词 改y为i 再加-es-ies读iz familiesdictionaries 以元音字母加y结尾的 加-s-s读zboyskeys以辅音字母加y结尾的以“f或fe”结尾的变f或fe为v,再加-es -ves读vzknives名词特点词尾加法词尾读音方法例词以 o 结尾的有生命的事物加-es-es读ztomatoespotatoe

6、s无生命的事物加-s-s读zphotosradios可数名词复数形式的构成 31.单复数同形的名词：可数名词的单数变复数（不规则变化）中国人，日本人都非常喜欢绵羊，鱼和鹿 Chinese Japanese（日本人） sheep（绵羊） fish deer（鹿）2.单复数不同形（特殊名词的变化）： 1)改变中间元音 footfeet toothteeth goosegeese manmen womanwomen mouse-mice 2)词尾加-en或-ren childchildren oxoxen（牛）可数名词的单数变复数（不规则变化）鹅Exercises 给下列可数名词加复数 bird-

7、card- lady- orange- ruler- photo- friend- boy- watch- girl- case- cat- wife- tree- key- bed- hero- family- dictionary- question- leaf- party- cup-birdsladiesorangesrulers catsboysgirlscaseswiveswatchestreeskeysquestionsbedsheroesfriendsfamiliesdictionariesphotoscardsleavespartiescups用所给名词的适当形式填空:1.

8、Are there any (peach) on the table?2. They are some young (woman).3. The (children) is playing in the garden.4. Some (goose) are swimming in the river.peacheswomenchildren geese5. Would you like some (fish)?6. How many (radio) can you see on the bookcase?7. Are there any (boy) in the library?8. One policeman caught three _ (thief) yesterday.fishradioboysthievesSum 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