boy的复数形式「boy的复数形式为什么要加s」

不可数名词只有一种形式；而可数名词则有单、复数两种形式，其复数形式构成方法如下：

1. 名词直接+s， 如：

hat→hats apple→apples boy→boys plane→planes

2. 以s /x /ch/ sh结尾的名词 +es (stomachs除外)，如：

class→classes box→boxes watch→watches brush→brushes

3. 以辅音字母+y结尾的名词，变y为i+es，如：

family→families baby→babies dictionary→dictionaries

4. 以f或fe结尾的名词，把f或fe改为ves，如：

knife→ knives half→halves leaf→leaves wolf→wolves

5. 以o结尾的名词，除hero, tomato, potato +es外，其余均+s, 如：

photo→photos radio→radios zoo→zoos piano→pianos

6. 不规则变化:

1） 单词本身变化的有：man→men woman→women

child→children tooth→teeth foot→feet

2） 单复数同形的名词有: Chinese, Japanese, fish, sheep, deer等

3） 只有复数的名词有：thanks, glasses, scissors, trousers, pants,

shorts, clothes, people, staff, police等

4）各国人变复数方法不一，中日不变（上2）; 英法相同，如：

Frenchmen/women, Englishmen/women; 其余均在字母n后+s:，如：Americans, Russians, Germans, Australians, Canadians

5）有些名词虽以s结尾，但实际为单数，如：news, physics, maths

6）名词修饰复数名词时，除man/woman变复数外，其余都不变

如： men doctors women teachers boy friends girl students

coffee cups banana trees shoe shops/stores

II．典型题例

1.【2019 ? 甘肃省威武市】—Here is my family __________. We took it last year.

—What a happy family!

A. member B. name C. photo D. house

2.【2019 ? 黑龙江省哈尔滨市】Tim got four __________ from his relatives

on Children s Day.

A. toy B. toys C. toies

3.【2019 ? 广西省百色市】 I’d like some ____________ and ____________.

A. banana; tomato B. bananas; tomato

C. bananas; tomatoes D. banana; tomatoes

4. 【2019 ? 湖南省益阳市】Look at the two ____________ over there. They are teaching the girls to play the guitar.

A. women teachers B. woman teachers C. woman teacher

5. 【2019 ? 贵州省毕节市】Jane is very thirsty, so she needs some ___________.

A. water B. bread C. cakes D. rice

【答案】C B C A A

总结：从以上中考题可以看出，初中阶段只需要掌握名词的基本用法即可。