名词单数变复数专练课件ppt.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,.,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,.,*,Welcome!,1,.,名词,单数,变,复数,2,.,Whats this in English?,Its an,apple,.,What are these?,They are two,apples,.,3,.,-,What are these?,-Whats this?,-Its a pen.,-,They are,pen,s,.,4,.,-,What are those?,-Whats that?,-Its,an,English book.,-,They are,English book,s,.,5,.,backpack,s,watch,es,orange,s,pen,s,-Whatre these?,-Theyre .,6,.,map,s,case,s,key,s,-Whatre those?,-Theyre .,7,.,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,8,.,1.一般情况下，直接在词尾加,-s,构成复数形式,。,car,backpack,car,s,backpack,s,book,book,s,1.,9,.,name,pen,card,ruler,name,s,pen,s,card,s,ruler,s,10,.,box,2.以s,x,ch,sh等结尾的名词，在词尾加,-es,构成复数形式。,box,es,class,class,es,watch,watch,es,brush,brush,es,s,x,sh,ch,2.,11,.,bus,bus,es,fox,es,fox,(狐狸),dish,(盘子),dish,es,12,.,3.以“辅音字母+y”结尾的名词，应改y为i，再加-es。,family,famil,ies,comed,ies,comedy,(喜剧),y,y,l,d,3.,13,.,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,。,boy,boy,s,day,day,s,o,a,y,y,4.,14,.,key,cit,ies,strawberr,ies,key,s,city,(城市),strawberry,(草莓),15,.,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,kni,ves,half,hal,ves,“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和,“树叶”(leaf)把“狼”(wolf)劈成两“半”(half)。,5.,16,.,wi,ves,lea,ves,wol,ves,wife,(妻子),leaf,(树叶),wolf狼),roof,(屋顶),roof,s,roof,17,.,“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：,18,.,6.以o结尾的名词，有的加-s,有的加-es构成复数形式。,phot,o,photo,s,hero,es,tomato,es,zoo,s,zo,o,(动物园),tomat,o,(西红柿),her,o,(英雄),6.,19,.,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,。,20,.,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.,21,.,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-,birds,ladies,oranges,rulers,cats,boys,girls,cases,wives,watches,trees,keys,questions,beds,heroes,friends,families,dictionaries,photos,cards,leaves,parties,cups,22,.,this ,that ,I ,you ,he/she/it ,am/is ,these,those,we,you,they,are,单数 复数,23,.,句子单数变复数,This is a book.,That is an eraser.,It is a red apple.,I am a boy.,He/She is a teacher.,Whats this?,These are books.,Those are erasers.,They are,red,apples.,We are boys.,They are teachers.,Whatre these?,24,.,复数句子变单数句子,These are,dictionaries,.,单数,一般疑问句,并作肯定回答,划线提问,This is,a,dictionary.,Are these dictionaries?,Yes,they,are.,What are these?,25,.,Thank you!,26,.,