名词变复数课件(教育精品).ppt
名词变复数名词变复数名词变复数名词变复数Whats this in English?Its an apple.What are these?They are two apples.-What are these?-Whats this?-Its a pen.-They are pens.This is my friend.These are my friends.Whos he?Hes my friend.Whore they?Theyre my friends.名词名词:人或事物的名称。:人或事物的名称。名 词总的来说事物的性质专有名词普通名词个别的人或事物、地个别的人或事物、地点、国家等。例如:点、国家等。例如:Gina、China。首字。首字母要大写。母要大写。不可数名词 例:milk、bread、water。没有复数形式可数名词例:an apple、two apples有复数形式既可数又不可数例:chicken 可数时表示小鸡,不可数时表示鸡肉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。carbackpackcarsbackpacksbookbooks1.namepencardrulernamespenscardsrulers练习练习box2.以s,x,ch,sh等结尾的名词,在词尾加-es构成复数形式。boxesclassclasseswatchwatchesbrushbrushessxshch2.busbusesfoxesfox(狐狸)dish(盘子)dishes练习练习3.以“辅音字母+y”结尾的名词,应改y为i,再加-es。familyfamiliescomediescomedy(喜剧)yyld3.4.以“元音字母+y”结尾的名词,直接在词尾加-s构成复数形式。boyboysdaydaysoayy4.keycitiesstrawberrieskeyscity(城市)strawberry(草莓)练习练习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)。5.wivesleaveswolveswife(妻子)leaf(树叶)wolf(狼)roof(屋顶)roofs练习练习“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf)把“狼”(wolf)劈成两“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)6.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:英雄爱吃英雄爱吃 土豆炖西红柿土豆炖西红柿。Sum 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.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(二二)不规则变化不规则变化:3.单复数同形单复数同形(不变不变):sheep(绵羊绵羊)deer(鹿鹿)fish(鱼鱼)1.man,woman men,womenChinese(中国人中国人)Japanese(日本人日本人)4.oo ee:foot(脚脚)tooth(牙齿牙齿)goose(鹅鹅)2.child(孩子)孩子)children(男人,妇女)男人,妇女)名词变复数歌诀名词变复数歌诀名词复数有变化,词尾常把名词复数有变化,词尾常把-s加;加;结尾若是结尾若是s,x,ch,sh,加上加上-es要记下;要记下;若遇若遇f,fe,更要弄清其变化;更要弄清其变化;先将它们变成先将它们变成v,然后再把,然后再把-es加;加;y结尾要分清,两种情况必须明;结尾要分清,两种情况必须明;不规则名词要注意,它的词形需牢记;不规则名词要注意,它的词形需牢记;中日友好不变化,英法联军中日友好不变化,英法联军a变变e。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 单数单数 复数复数指指示示代代词词人称代词系动词系动词句型转换句型转换1.What1.Whats s thisthis?复数复数 Whatre these?2.He2.Hes a Chinese boy.s a Chinese boy.复数复数Theyre Chinese boys.指示代词指示代词人人称称代代词词系动词系动词可数名词可数名词 3.This is a bike.3.This is a bike.复数句复数句 These are bikes.指示代词指示代词系动词系动词可数名词可数名词注意:注意:单数句子转变为复数句子,指示代单数句子转变为复数句子,指示代词、人称代词、系动词、可数名词都要变化词、人称代词、系动词、可数名词都要变化为复数形式。为复数形式。二、句型转换二、句型转换1.This is my mother.1)变否定句)变否定句 2)变一般疑问句,并作肯定或否定回)变一般疑问句,并作肯定或否定回答答This is not my mother.Is this your mother?Yes,it is./No,it isnt.2.That is a car.1)变否定句)变否定句 2)划线提问)划线提问3)变复数句变复数句That is not a car.Whats that?Those are cars.3.Thats an English dictionary.1)变否定句)变否定句 2)变一般疑问句,并作否定回答)变一般疑问句,并作否定回答Thats not an English dictionary.Is that an English dictionary?No,it isnt.4.These are 4.These are dictionariesdictionaries.单数单数一般疑问句一般疑问句,并作肯定或否定回答并作肯定或否定回答划线提问划线提问 This is a dictionary.Are these dictionaries?Yes,they are.No,they arent.What are these?