名词单数变复数-四年级

名词单复数变化规则:

1．一般情况下，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)不可数名词的复数就是原型：paper,juice，water, milk, rice, tea, hair, coffee, bread, meat, people, fish, sheep.

写出下列各词的复数

book______, bag______, cat______,bed______, boy______,pen______.

box______, bus_____, brush______,watch______, potato______,

family______, strawberry______,baby______,

lady______, factory______,library______,

④knife______,leaf______, wife______.

⑤man______, woman______, policeman______, policewoman______, foot______,tooth______

goose______,mouse______,sheep_____,deer______ child______,Chinese______, Japanese______

⑥paper______，juice______，water______,

milk______, rice______, tea______, hair______, coffee______,bread______,meat______,

people______, fish______, sheep______,

⑦I _________ 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

⑤man-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

⑥paper，juice，water, milk, rice, tea, hair, coffee, bread, meat, people, fish, sheep,

⑦I _________ him _________her ______

this ________that ________