名词单数变复数专练课件

maps
cases
keys
单数
如 何 变
规则变化
化
可数名词
？
不规则变化
复数
1.一般情况下，直接在词尾加-s 构成复数形式。
car
cars
backpack backpacks book books
name pen card ruler
names pens cards rulers
练习一
dog------ dogs duck----- ducks chair----- chairs table---- tables band----- hands window- windows banana- bananas tree------ trees
leaf
(树叶)
wolf
(狼)
roof
(屋顶)
巧记一：
“小偷”(thief)的“妻 子”(wife)用“刀子”(knife) 和“树叶”(leaf)把 “狼”(wolf)劈成两
巧记二：
妻子持刀去宰狼，小偷吓得发了慌； 妻子持刀去宰狼，小偷吓得发了慌； 躲在架后保己命，半片树叶遮目光。 躲在架后保己命，半片树叶遮目光。
不规则名词复数变化一 deer------- deer sheep----- sheep foot------- feet tooth------ teeth goose ---- geese fish------- fish Chinese-- Chinese Japanese- Japanese
5. He / She is a teacher. They are teachers. 6. What’s this ? What’re these ?
复数句子变单数句子 dictionaries. These are dictionaries. 单数
This is a dictionary.
一般疑问句,并作肯定回答 一般疑问句, Are these dictionaries ? Yes, they are. 划线提问
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。
练习四
piano---zoo-------potato--photo---tomato-radio------
pianos zoos potatoes photos tomatoes radios
wife----key-----glass--knife--boy----eye----watch-city-----school-
wives keys glasses buses boys eyes watches cities schools
box----baby--family-brush-matchclass---desk---hen-----day------
练习四
wife---- wives knife--- knives wolf---- wolves thief---- thieves shelf--- shelves self---- selves life----- lives half---- halves leaf---- leaves
综合练习三
按：wife（妻子），knife（小刀），wolf （狼），thief（小偷），shelf（架子）， thief shelf self（自己），life（生命），half（一半）， leaf（树叶）。 由self构成的复合词，其变化与self相同（如 myself→ourselves；yourself→yourselves； himelf，herself，itself→themselves）。
city----------day ---------boy ---------family ------key----------strawberry baby -------cities days boys families keys strawberries babies
综合练习二
strawberry key--------glass -----bus -------boy -------eye -------watch ----city -------school ----
综合练习三
family knife book bed wolf bus shelf zoo potato city photo families knives books beds wolves buses shelves zoos potatoes cities photos leaf piano box tomato brush watch bag cat radio boy strawberry leaves pianos boxes tomatoes brushes watches bags cats radios boys strawberries
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. 4.以“元音字母+y”结尾的名词，直接在词尾加-s 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,
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 half
knives halves
“小偷”(thief)的“妻子”(wife)用“刀 子”(knife)和 “树叶”(leaf)把“狼”(wolf)劈成两 “半”(half)。
wife
(妻子)
wives leaves wolves roofs
2. 以s, x, ch, sh等结尾的名词， 在词尾加-es构成复数形式。
class s box x watch ch brush sh
classes boxes watches brushes
bus fox
(狐狸)
buses foxes dishes
dish (盘子)
练习二
glass--box-----brush--match--class---bus----watch-glasses boxes brushes matches classes buses watches
名词单数变 名词单数变复数 单数
What’s this in English?
It’s an apple.
What are these?
They are two apples.
--What’s this? --It’s a pen.
--What are these? --They are pens.
boxes babies families brushes matches classes desks hens days
6. 以o结尾的名词，有的加-s, 有 的加-es构成复数形式。
photo zoo) (动物园) (
photos zoos tomato tomatoes (西红柿) hero (英雄) heroes
What areBiblioteka these ?表示有生命事物的名词加-es。
给下列可数名词加复数．
bird-- birds card-- cards lady-- ladies orange-- oranges ruler-- rulers photo-- photos friend-- friends boy-- boys watch-- watches girl--girls case-- cases cat-- cats wife-- wives tree-- trees key-- keys bed-- beds hero-- heroes family- families dictionary-- dictionaries question-- questions leaf-- leaves party-- parties cup-- cups
句子单数变复数 1. This is a book. 2. That is an eraser. 3. It is a red apple. 4. I am a boy. These are books. Those are erasers. They are red apples. We are boys.
综合练习一
glass-desk---schoolbox----brush-hen----matchclass-bus---eye---watch-
glasses desks schools boxes brushes hens matches classes buses eyes watches
3. 以“辅音字母+y”结尾的名词， 应改y为i，再加-es。
不规则名词复数变化三
this------that ------I ----------me -------you ------he/she/it/-him/her/itam/is-----these those we us you they them are
综合练习三
me------Chinesetooth---mouse-fish----you----she-----us Chinese teeth mice fish you they watch- watches bus--- buses him---- them box--- boxes potato- potatoes photo- photos shelf--- shelves sheep- sheepchild--- children this--- these woman- women that--- those bag----- bags I-------we