小学英语语法名词变复数ppt课件.ppt
名词变复数,通榆县明德小学 刘大军,名词 ：名词是表示人,事物,地点等名称,名词,可数名词:指能以数目来计算，可以分成个体的人或东西,不可数名词:不能用数字计算的,举例：学生、车、房子、北方。,什么是名词？,单数,复数,可数名词,如何变化？,规则变化,1.一般情况下，直接在词尾加-s构成复数形式。,car,backpack,cars,backpacks,book,books,1.,name,pen,card,ruler,names,pens,cards,rulers,练习,box,2. 以s, x, ch, sh等结尾的名词， 在词尾加-es构成复数形式。,boxes,class,classes,watch,watches,brush,brushes,2.,bus,buses,foxes,dishes,练习,3. 以“辅音字母+y”结尾的名词，应改y为i，再加-es。,family,families,comedies,3.,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,day,days,4.,key,cities,strawberries,keys,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。,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.,wives,leaves,wolves,roofs,练习,wife,knife,wolf,thief,shelf,leaf,knives,leaves,wolves,wives,thives,shelves,记忆小口诀:妻子持刀去宰狼，吓的小偷发了荒躲在架后保己命，半片树叶遮目光,“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。,photo,photos,heroes,tomatoes,zoos,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 negro,巧记:黑人英雄爱吃 土豆炖西红柿。,（简称两人两菜）,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 .,(二)不规则变化:,3.单复数同形(鱼/鹿/绵羊/ 中日友好不用变): fish(鱼) deer(鹿) sheep(绵羊),1.man, woman men, women,Chinese(中国人) Japanese(日本人),4. oo ee： foot(脚) tooth(牙齿) goose(鹅),2. child（孩子） children孩子加上”ren”,（男人，妇女a 变 e ）,小口诀：双脚白鹅和牙齿oo都要变ee,名词变复数歌诀名词复数有变化，词尾常把-s加；结尾若是s, x, ch, sh, 加上-es要记下；若遇f, fe, 更要弄清其变化；先将它们变成v，然后再把-es加；y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；中日友好不变化，英法联军a变e。,watch _child _photo _diary _ day_ foot_ book_ dress _ tooth_ sheep _box_ strawberry_ thief_ peach_ sandwich_man_woman_paper_juice_water_ milk_rice_tea_,写出下列单词的复数,watches,chidren,photos,diaries,days,feet,books,dresses,teeth,sheep,boxes,strawberries,thieves,peaches,sandwiches,men,women,paper,juice,water,milk,rice,tea,1.I have two_ (knife)2.There are many _ here. (box)3.There are many _ on the road. (bus)4.A few _ are drawing on the wall. (boy)5.The _ are playing football now. (child),填入所给名词的正确形式,kinves,boxes,buses,boys,children,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,二、 写出下列名词复数形式1.desk 2. boat 3. map 4. dish 5. class 6.church 7. dress 8.page 9. boy 10.hero 11.potato 12.radio 13.party 14.factory 15.leaf 16.shelf 17man 18.tooth 19.child 20.deer 21.school 22.beach 23.baby,be动词： 根据人称和数应有am，is，are三种形式的变化。我用am,你用are, is连着他,她,它; 单数名词用is, 复数名词全用are. 变否定,更容易, be 加not就可以; 变问句,be前提, 句末问号莫忘记.,
