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library的復(fù)數(shù) library的復(fù)數(shù)形式


library的復(fù)數(shù) library的復(fù)數(shù)形式


大家好 , 我是sweet老師,可數(shù)名詞的復(fù)數(shù)形式多種多樣,究竟應(yīng)該選擇哪一個呢?這些例子為大家總結(jié)了用法,涵蓋了小學(xué)階大部分單詞,希望能對大家有所幫助 。

1、可數(shù)名詞有單數(shù)、復(fù)數(shù)之分,
名詞復(fù)數(shù)形式的構(gòu)成規(guī)則:
(1) 一般在名詞詞尾加“s”
如:teacher—teachers egg---eggs
(2) 以s, x, sh, ch結(jié)尾的名詞加es
如class---classes box-- boxes bus --buses watch--watches
(3) 以輔音字母+y 的名詞變y為i再加es
如:story---stories library---libraries,
dictionary----dictionaries hobby---hobbies
(4) 以f, fe 結(jié)尾的名詞,變f, fe為v加es
如:life ---lives leaf ---leaves half---halves
knife---knives wolf-wolves wife---wives
(5) 以o結(jié)尾的名詞“英雄芒果土豆西紅柿”加es
hero---heroesmango--- mangoes
potato--- potatoes tomato--- tomatoes
其余加s(目前所學(xué)的詞) zoo---zoos kilo---kilos
radio—radios photo--- photos piano-- pianos
(6)不規(guī)則名詞單復(fù)數(shù)形式
如: child — children woman --- women
man ---men foot---feet tooth---teeth
有的可數(shù)名詞單、復(fù)數(shù)形式相同,如 Japanese,Chinese , sheep,
如: I have one sheep. He has two sheep.
2、不可數(shù)名詞沒有復(fù)數(shù)形式
不可數(shù)名詞有:(1)milk, water, juice, tea, ice;
(2) food, rice, meat, fish, chicken, bread, cheese
(3) paper, newspaper , hair, time, money, homework, housework
不可數(shù)名詞的數(shù)量常表示如下
two bottles of milk a cup of juice half a kilo of cheese
【library的復(fù)數(shù) library的復(fù)數(shù)形式】 a bag of rice three kilos of meat some water

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