初一英语语法易错知识点

　　[第一类] 名词类

1. 这些女老师们在干什么?

[误] What are the woman teachers doing?

[正] What are the women teachers doing?

[析] 在英语中，当一名词作定语修饰另一名词(单或复数形式)时，作定语的名词一般要用其单数形式;但当man, woman作定语修饰可数名词复数形式时，要用其复数形式men, women.

2. 房间里有多少人?

[误] How many peoples are there in the room?

[正] How many people are there in the room?

[析] people作人、人们解时，是个集合名词，其单复数同形。

3. 我想为我儿子买两瓶牛奶。

[误] I want to buy two bottle of milk for my son.

[正] I want to buy two bottles of milk for my son.

[析] 表示不可数名词的数量时，常用a/ an或数词+表量的`可数名词+ of + 不可数名词这一结构，其中当数词大于1时，表量的可数名词要用其复数形式。

　　[第二类] 动词类

4. 你妹妹通常什么时候去上学?

[误] What time does your sister usually goes to school?

[正] What time does your sister usually go to school?