1、名词单数句变复数句,单数主格人称代词要变成相应的复数主格人称代词. Iwe：youyou； she, he, itthey。She is a girl. They are girls.,am, is要变为are。 Im a student. We are students.,不定冠词a, an要去掉。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
2、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。 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。,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 _. 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 _ _ in the playground?,
