名词单数句变复数句
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单数主格人称代词要变成相应的复数主格人称代词. I→we：you→you； she, he, it→they。 She is a girl. →They are girls.
am, is要变为are。
I'm a student. →We are students.
不定冠词a, an要去掉。
He is a man doctor →They are men doctors.
This is an apple tree →They are apple trees.
口诀
单数句子变复数，变化规则要记住。 名词代词要变化，am, is要变are。 this, that变成啥，these, those来替它。 he, she, it要变啥，全部变they不用怕. 要变we莫落下，名词后面把s/es加。 名前冠词去掉它，其余成分原样加。
3. He has a new book.(改为复数句) _________ _________ new _________.
4. Are these your chicks ?(改为单数句) _______ _______ your _______?
5. Is there a sheep in the playground?(改为复数句) ________ there __百度文库_____ ________ in the playground?
He is a boy. →They are boys
指示代词this, that要变为these, those。
This is a book. →These are books.
普通单数名词要变为复数形式。
It is a cat. →They are cats.
man, woman作定语修饰可数名词时，要在 "数"上 与被修饰名词保持一致。但其他名词修饰名词表 示 "性质"时，不作变化。
Excercises 单复数相互转换，每空一词(含缩写)。
1. The woman is a nurse.(改为复数句) The_________ _________ _________.
2. There are some old cars.(改为单数句) There _________ _________ old _________.
am, is要变为are。
I'm a student. →We are students.
不定冠词a, an要去掉。
He is a man doctor →They are men doctors.
This is an apple tree →They are apple trees.
口诀
单数句子变复数，变化规则要记住。 名词代词要变化，am, is要变are。 this, that变成啥，these, those来替它。 he, she, it要变啥，全部变they不用怕. 要变we莫落下，名词后面把s/es加。 名前冠词去掉它，其余成分原样加。
3. He has a new book.(改为复数句) _________ _________ new _________.
4. Are these your chicks ?(改为单数句) _______ _______ your _______?
5. Is there a sheep in the playground?(改为复数句) ________ there __百度文库_____ ________ in the playground?
He is a boy. →They are boys
指示代词this, that要变为these, those。
This is a book. →These are books.
普通单数名词要变为复数形式。
It is a cat. →They are cats.
man, woman作定语修饰可数名词时，要在 "数"上 与被修饰名词保持一致。但其他名词修饰名词表 示 "性质"时，不作变化。
Excercises 单复数相互转换，每空一词(含缩写)。
1. The woman is a nurse.(改为复数句) The_________ _________ _________.
2. There are some old cars.(改为单数句) There _________ _________ old _________.