名词单数变复数不规则变化

名词复数学•Sumup: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.this–that–I–you–he/she/it–am/is–thesethoseweyoutheyare单数复数一、写出下列单词的复数1.I--2.am--3.he–4.pencil--5.watch--6.dictionary--8.it--9.parent--10.boy–wearetheypencilswatchesdictionariestheyparentsboys句子单数变复数1.Thisisabook.2.Thatisaneraser.3.Itisaredapple.4.Iamaboy.5.He/Sheisateacher.6.What’sthis?Thesearebooks.Thoseareerasers.Theyareredapples.Weareboys.Theyareteachers.What’rethese?sheepmousegoosesheepMr.Sheep,Howmanysheeparethereinyourfamily?Therearetwosheep.Mr.Mouse,Howmanymicearethereinyourfamily?mouseMr.Mouse,Howmanymicearethereinyourfamily?mouseTherearesixmice.gooseMiss.goose,Howmanygeesearethereinyourfamily?Therearetengeese.1）内部元音字母发生变化。如man---menwoman---women注意：与man和woman构成的合成词，其复数形式也是-men和-women。如：womandoctor,womendoctorsamanteachermenteachersanEnglishman，twoEnglishmen.；Bowman是姓，其复数是theBowmans。•1,内部元音字母发生变化。如：•foot—feet足•tooth—teeth牙齿•goose(鹅)——geese•mouse—mice鼠•policeman—policemen警察•2,表示“某国人”的单、复数变化•单复数同形。如：•Chinese—Chinese中国人Japanese—Japanese日本人Swiss—Swiss瑞士人•1)词尾加-s。如：•German—Germans德国人Roman—Romans罗马人Russian—Russians俄罗斯人American—Americans美国人•2)变man为men。如：•Frenchman—Frenchmen法国人•Englishman—Englishmen英国人•3,词尾发生变化。如：•ox—oxen公牛child—children孩子4,有个别名词单复数形式一样。如：deer—deer鹿fish—fish鱼sheep—sheep羊means—means方法works—works工厂•4,分开写者，通常在第二部分词尾加复数。如：•aboystudentboystudents男学生•agirlfriendgirlfriends女朋友Homework:Youmustdo:Recitetherulesofthepluralsnounswithyourclassmates.Youcantrytodo:Tofindmorepluralnounsinyoursparetime.pendeskkeyboxknifecardorangeboyfriendparentmotherfathersisterbrothersondaughtercousinfamilypencilcasessssesknivessssssssssssfamilies•childmanpencilcasesheep