小学名词变复数

名词名词：是指人或事物名称的词。名词专有名词China普通名词个体名词book集体名词family物质名词water抽象名词work不可数名词可数名词名词变复数AbookThisisabook.Thisisachinesebook.Thesearesomebooks.What’sthis?Whatarethese?It’sabook.Theyarebooks.What’sthisinEnglish?It’sanapple.Whatarethese?Theyaretwoapples.--Whatarethese?--What’sthis?--It’sapen.--Theyarepens.--Whatarethose?--What’sthat?--It’sanEnglishbook.--TheyareEnglishbooks.bagswatchesorangespens--What’rethese?--They’re….mapscaseskeys--What’rethose?--They’re….This__________________.These__________________.isatreearetwotreesaresometrees名词变复数1．一般在名词后面加上“s”:book→books，bag→bags2．以s,x,sh,ch，等结尾的词加“es”:bus→buses，watch→watches3．以辅音字母＋y结尾的词，变y为i加es，baby→babies以元音字母＋y结尾的名词变复数时，直接加s变复数，boy→boys以o结尾的名词变复数(a）加s的名词photo→photos，piano→pianos，radio→radios，zoo→zoos(b）水果、蔬菜、人这样的单词加espotato→potatoes(土豆)tomato→tomatoes（西红柿）mango---mangoes(芒果)Negro---negroes(黑人）hero---heroes（英雄）黑人英雄喜欢吃土豆、西红柿和芒果。（简称两人两菜）以f或fe结尾的名词变复数去掉f，fe加veshalf（一半）→halvesknife（小刀）→knivesleaf（树叶）→leaveswolf（狼）→wolveswife（妻子）→wiveslife（生活）→livesthief（小偷）→thieves“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf)把“狼”(wolf)劈成两“半”(half)。(二)不规则变化男人女人a变e，鹅足牙oo变ee；man-men;woman-women;goosegeese;foot-feet;tooth-teeth老鼠虱子也好记，ous变ic；mouse-mice;louse-lice孩子加上ren，鱼鹿绵羊不用变child-children;fish;deer;sheepthis---these(这些)that--those(那些)将下列名词变复数（练习）1、orange2、bus3、book_____4、box5、piano6、child_____7、leaf8、bed9、country_____10、balcony11、boy12、foot_____13、potato14、photo15、man_____16、baby17、tomato18、watch_____19、woman20、knife22、sheep_____balconiesboysfeetpotatoesphotosmenbabiestomatoeswatcheswomenknivessheepbooksboxeschildrenpianosleavesbedsbusesorangescountries给下列可数名词加复数．bird--card--lady--orange--ruler--photo--friend--boy--watch--girl--case--cat--wife--tree--key--bed--hero--family-dictionary--question--leaf--party--cup--birdsladiesorangesrulerscatsboysgirlscaseswiveswatchestreeskeysquestionsbedsheroesfriendsfamiliesdictionariesphotoscardsleavespartiescupsthis–that–I–you–he/she/it–am/is–thesethoseweyoutheyare单数复数1.Therearesomany________(leaf)onthetrees.2.Ithastwo______(study)intherooms.3.These_______(tomato)arered.4.Thereissome_____(water)intheglass.5.Mybrotherlooksaftertwo______(baby)练习leavesstudiestomatoeswaterbabies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?复数句子变单数句子Thesearedictionaries.单数一般疑问句,并作肯定回答划线提问Thisisadictionary.Arethesedictionaries?Yes,theyare.Whatarethese?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.