名词单复数ppt[A类基础].ppt

Welcome !,1,a教类,名词单数变复数,2,a教类,Whats this in English?,Its an apple.,What are these?,They are two apples.,3,a教类,-What are these?,-Whats this?,-Its a pen.,-They are pens.,4,a教类,-What are these?,-Whats this?,-Its a book.,-They are books.,5,a教类,backpacks,watches,oranges,pens,-Whatre these ?-Theyre .,6,a教类,maps,cases,keys,-Whatre these ?-Theyre .,7,a教类,单数,复数,可数名词,如何变化？,规则变化,8,a教类,1.一般情况下，直接在词尾加-s构成复数形式。,tiger,panda,tigers,pandas,dog,dogs,1.,9,a教类,name,pen,pencil,ruler,names,pens,pencils,rulers,10,a教类,fox,2. 以s, x, ch, sh等结尾的名词， 在词尾加-es构成复数形式。,foxes,class,classes,watch,watches,brush,brushes,2.,11,a教类,bus,buses,foxes,dishes,12,a教类,3. 以“辅音字母+y”结尾的名词，应改y为i，再加-es。,family,families,ladies,3.,13,a教类,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,boys,monkey,monkeys,4.,14,a教类,key,cities,strawberries,keys,15,a教类,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,knives,half,halves,“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,a教类,wives,leaves,wolves,17,a教类,“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,a教类,6. 以o结尾的名词，有的加-s, 有的加-es构成复数形式。,photo,photos,heroes,tomatoes,zoos,6.,19,a教类,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,a教类,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,a教类,7、单复数同形 ，保持原音。 例词： fish fish,22,a教类,sheep sheep cattle cattle deer deer,23,a教类,8、复数形式没有任何规律 例词： manmen woman women,24,a教类,childchildren foot feet,25,a教类,名词单数变复数后s / es 的读音1.在清辅音后读 / s /2.在元音和浊辅音后读 / z /3.在/ s / / z / / / / / t / / d /后 读 / iz /4.在/ t /后读/ ts /，在 / d /后读 / dz /,desks maps,brothers pens,classes, watches, oranges,cats, friends,26,a教类,给下列可数名词加复数,tiger- dish- lady- monkey- ruler- pen- bus- boy- wolf- girl- box- cat- deer- family- panda- man-,tigers,ladies,monkeys,rulers,cats,boys,girls,boxes,deer,wolves,families,pandas,buses,pens,dishes,men,27,a教类,Thank you!,28,a教类,