小学四年级英语常用语法总结

具体注意下面的六要素：

1.单数主格人称代词要变成相应的复数主格人称代词，即I→we; you→you; she， he， it→they。如： She is a girl.→They are girls.

2. am， is要变为are。如： I‘m a student. →We are students.

3.不定冠词a， an要去掉。如： He is a boy. →They are boys.

4.普通单数名词要变为复数形式。如： It is a cat. →They are cats.

5.指示代词this， that要变为these， those。如： This is a book.→These are books.

6. 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。如：

He is a man doctor.→They are men doctors.

This is an apple tree.→They are apple trees.

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?

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