(共20张PPT)
可数名词-单复数变化规则
一、规则变化
直接加 “s” book-books; dog-dogs; bed-beds; map-aps
以s, x, ch, sh 结尾, 加 “es” box-boxes; class-classes; match-matches
以“辅音字母加y” 结尾的, 变y 为i, 加“es” family-families; country-countries; baby-babies
以“元音字母加y ” 结尾, 加“s” boy-boys; play-plays; monkey-monkeys
以f、fe 结尾,直接加 “s” 或把f、fe 去掉,加“ves” cliff-cliffs; reef-reefs; belief-beliefs
knife-knives; leaf-leaves; wolf-wolves
以o 结尾的名词,无生命的加“s” 有生命的加“es” photo-photos; piano-pianos; studio-studios
potato-potatoes; hero-heros; tomatoe-tomatoes
直接加 “s”
book
books
dog
dogs
以s, x, ch, sh 结尾, 加 “es”
box
boxes
class
classes
以“辅音字母加y” 结尾的, 变y 为i, 加“es”
country
countries
baby
babies
以“元音字母加y ” 结尾, 加“s”
monkey
monkeys
boy
boys
以f、fe 结尾,直接加 “s”或把f、fe 去掉,加“ves”
cliff
cliffs
knife
knives
以o 结尾的名词,无生命的加“s”,有生命的加“es”
piano
pianos
tomato
tomatoes
二、不规则变化
男人女人,a 变e 男人man-men 女人woman-women
鹅足牙,oo 变ee 鹅goose-geese 足foot-feet 牙tooth-teeth
鱼羊鹿人不变 fish 鱼 sheep 绵羊 deer鹿 people 人
老鼠ous 变ic 老鼠mouse-mice
孩子后面加个ren 公牛ox 后面加en 孩子child-children 公牛ox-oxen
中日不变,英法变 中国人Chinese -Chinese 日本人Japanese-Japanese
英国人Englishman- Englishmen
法国人Frenchman-Frenchmen
男人女人,a 变e
man
men
woman
women
鹅足牙,oo 变ee
foot
feet
tooth
teeth
鱼羊鹿人不变
fish
fish
people
people
老鼠ous 变ic
mouse
mice
孩子后面加个ren 公牛ox 后面加en
child
children
ox
oxen
中日不变,英法变
Chinese
Chinese
Englishman
Englishmen
注意!
少数名词既可做可数名词,也可作不可数名词,但含义不同。(fish ,chicken...)
如:fish
1.同一种鱼类,单复数同形。(three fish)
2.当各种各样的鱼讲时,即强调鱼的种类时,要加es。(all kinds of fishes)
3.鱼肉,不可数。(some fish)
不可数名词,如water, milk ,juice,paper,rice 等不可数名词,没有复数形式。
如果要计算不可数名词所表达的数量,用“表示量的词+of”
如:a glass of water
two glasses of water
a piece of paper
five pieces of paper
练一练
一:名词规则变化
1. apple___________
2. map____________
3. book___________
4. pen____________
5. pencil___________
6. teacher____________
7. leaf_____________
8. tomato____________
9. potato____________
10. bear_____________
11. box_____________
12. cherry___________
13. strawberry_______
14. knife____________
15. boy____________
练一练
二:名词不规则变化
1. foot____________
2. goose___________
3. tooth___________
4. Chinese_________
5. Japanese________
6. people_____________
7. deer_______________
8. sheep______________
9. child_______________
10. fish_______________
11. man_____________
12. woman___________
13. mouse____________
14. ox_______________
15. Frenchman________
练一练
三:名词单复数变化
1.glass ___________
2.boy ____________
3.duck ____________
4.house___________
5.book ___________
6.lady_____________
7.sheep ___________
8.deer ____________
9.child____________
10.foot ___________
11.tomato_________
12.ox ____________
13.desk___________
14.window ________
15.pencil__________