library的复数(library的复数怎么变)

2022-12-12 06:58:45 发布:网友投稿 作者:网友投稿
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大家好,我是sweet老师,可数名词的复数形式多种多样,究竟应该选择哪一个呢?这些例子为大家总结了用法,涵盖了小学阶大部分单词,希望能对大家有所帮助。

1、可数名词有单数、复数之分,

名词复数形式的构成规则:

(1) 一般在名词词尾加“s”

如:teacher—teachers egg---eggs

(2) 以s, x, sh, ch结尾的名词加es

如class---classes box-- boxes bus --buses watch--watches

(3) 以辅音字母+y 的名词变y为i再加es

如:story---stories library---libraries,

dictionary----dictionaries hobby---hobbies

(4) 以f, fe 结尾的名词,变f, fe为v加es

如:life ---lives leaf ---leaves half---halves

knife---knives wolf-wolves wife---wives

(5) 以o结尾的名词“英雄芒果土豆西红柿”加es

hero---heroes mango--- mangoes

potato--- potatoes tomato--- tomatoes

其余加s(目前所学的词) zoo---zoos kilo---kilos

radio—radios photo--- photos piano-- pianos

(6)不规则名词单复数形式

如: child — children woman --- women

man ---men foot---feet tooth---teeth

有的可数名词单、复数形式相同,如 Japanese,Chinese,sheep,

如: I have one sheep. He has two sheep.

2、不可数名词没有复数形式

不可数名词有:(1)milk, water, juice, tea, ice;

(2) food, rice, meat, fish, chicken, bread, cheese

(3) paper, newspaper , hair, time, money, homework, housework

不可数名词的数量常表示如下

two bottles of milk a cup of juice half a kilo of cheese

a bag of rice three kilos of meat some water

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