名词单数变复数四年级

名词单复数变化规则 :

1．一般状况下，直接加 -s ，如：book-books, bag-bags,

cat-cats, bed-beds,boy-boys,pen-pens.

2．以 s,x,sh,ch

结尾，加 -es ，如： box-boxes,

bus-buses, brush-brushes, watch-watches.

3．以“辅音字母 +y”结尾，变 y 为 i,

再加 -es ，如：

family-families,

strawberry-strawberries,baby-babies,

lady-ladies,

factory-factories,library-libraries,

4．以“f或 fe ”结尾，变 f 或 fe 为 v,

再加 -es ，如：

knife-knives, leaf-leaves, wife-wives,

5．O结为分两类：

有生命的 , 加-es, 如

potato-potatoes,tomato-tomatoes.

没有生命的 , 加-s,

如 photo-photos

不规则名词复数：

man-men, woman-women, policeman-policemen,

policewoman-policewomen, foot-feet,tooth-teeth

goose-geese,mouse-mice,sheep-sheep,deer-deer

child-children,Chinese-Chinese,

Japanese-Japanese

6) 不行数名词的复数就是原型： paper,juice ，water,

milk, rice, tea, hair, coffee, bread, meat,

people, fish, sheep.

写出以下各词的复数

______

book , bag ,

, boy

______,pen cat

______,bed

box

brush

, bus

.

_____

______

,

, ,watch

potato

______,

family

______, strawberry ______,baby ______,

______ ______ ______

lady

④knife

______

______

, factory

,leaf

, woman

______

,library

, wife

______.

,

______

, policeman

______ ______

⑤man

policewoman

,

, foot ,tooth

goose______,mouse______,sheep

_____,deer

____

__

child

______,Chinese

, Japanese

______

⑥ paper

______，juice

______，water

______,

______

milk

hair

coffee

people

______

rice

______

,

,

,

tea

,

______

______

______

______

,bread

, fish

,meat

, sheep

______

,

,

⑦ I _________ him _________her ______

this ________that ________

book-books,bag-bags,cat-cats,bed-beds,

boy-boys,pen-pens.

box-boxes, bus-buses, brush-brushes,

watch-watches,

potato-potatoes,

family-families,

strawberry-strawberries,baby-babies,

lady-ladies,

factory-factories,library-libraries,

④knife-knives, leaf-leaves, wife-wives, shelf-shelves

⑤ man-men, woman-women, policeman-policemen,

policewoman-policewomen, foot-feet,tooth-teeth

goose-geese,mouse-mice,sheep-sheep,deer-deer

child-children,Chinese-Chinese, Japanese-Japanese

⑥ paper ， juice ， water, milk, rice, tea, hair,

coffee, bread, meat, people, fish, sheep,

⑦ I _________ him _________her ______

this ________that ________