小学五年级英语单复数知识点文档免费下载
一、名词主要分为两类:可数名词和不可数名词。
1.不可数名词:单词本身没有复数形式,词前不能接 a, an及数词。
学过的不可数名词有:water milk rice juice bread
2.可数名词:单数形式前通常加a (an); 复数形式通常有下列几种情况:
(1)一般情况:名词后直接加 s 例: bag – bags
(2)以 s, x, sh, ch 结尾的名词加 es
例: bus – buses box – boxes brush – brushes watch – watches
(3)以o 结尾的名词有两种情况:
一是直接加 s (所学过的词有:zoo – zoos hippo – hippos piano – pianos video – videos)
二是加 es (所学过的词有:tomato – tomatoes potato – potatoes )
(4)以辅音字母和 y 结尾的名词,先去掉 y 再加 ies
例:family – families candy – candies
(5)以 f 或 fe 结尾的名词,先去掉 f 或 fe 再加 ves
例:knife – knives scarf – scarves leaf – leaves shelf – shelves
(6)特殊情况:
people – people Chinese – Chinese sheep – sheep
man – men woman – women postman – postmen policeman – policemen
foot – feet tooth – teeth goose – geese
child – children mouse – mice
二、代词的单复数
1. 指示代词: this – these that – those
2. 人称代词: 主格:I – we you – you he – they she -- they it—they
宾格:me – us you – you him– them her – them it – them
3. 物主代词: 名词性: my – our your—your his – their her – their its – their
形容词性: mine—ours yours – yours his – theirs hers – theirs its – theirs
三、动词be (am, is, are)的使用
我(I)用am, 你 (you) 用 are, is 用在他 (he) 她 (she) 它 (it), 单数用is, 复数要用are 。
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