三年级英语语法大全

语法专项整理（一）名词

2、专有名词：专有名词是指某个人、某些地方、某样物品专有的名称。Children’s Day

专有名词第一个字母要大写，前面不加a, an, the

3、单数名词：

（1）一般名词，在前面加a：a book, a computer,

（2）元音字母开头的名词，在前面加an：an egg, an orange（元音字母是：a, e, i, o, u）$

少数例外: an hour, a university (以元音发音为准)

4、复数名词：

规则：

不规则：

/

5、不可数名词：在不可数名词前只能加some（一些）, much（许多）

（1）液体：water, milk, coke, coffee, juice, tea

（2）气体：air, vapour

（3）不能“个别的”存在：hair, rice, beef, meat, pork, mutton

语法专项整理（二）代词1

2

3、指示代词：this, that, these, those

如：This is my doll. That is Mary’s.

Look at the those sheep. They are eating grass.

语法专项整理（三）数词1

2

seventh seventeenth seventieth

eighth eighteenth eightieth

ninetieth

ninth、

nineteenth

tenth除第1、2、3, 直接加th ty结尾，变y为ie，再加th

语法专项整理（五）介词

词类例词

at 7:00, in the morning, on Monday, before lunch, after dinner,

（

时间介词

方位介词on the desk, in the park, at home, under the tree, behind the door, over the bed, in front of the house, near the lake, next to the cinema,

动向介词go to school, jump into the water, climb up the tree, ski down the mountain, run out of the door

方式介词by bike, on foot, play with my friend

2、at, on, in在表示时间时的区别：

（1）at用于具体的时刻：at 10:05, at noon, at night,

@

（2）on用于具体的一天（常与星期、节日、具体的某一天连用，也表示某天上午、下午或晚上）

on Monday, on New Year’s Day, on June 1st, on my birthday, on Friday morning, on the weekend,（3）in用于某一段时间（常与上午、下午、晚上连用，常与月份、季节、年份连用）：in the morning, in the afternoon, in the evening, in March, in spring, in 2007,

语法专项整理（六）There be 结构

1、概念：There be结构又叫存在句，表示某地存在某物。

2、There be 结构的肯定句

（1）There is + 可数名词单数+ 地点：There is a book on the desk.

（2）There is + 不可数名词+ 地点：There is some water in the glass

（3）]

（4）There are + 可数名词复数+ 地点：There are some flowers in the garden.

就近原则：若句子中有几个并列的主语，be动词的形式和最近的一个主语保持一致

There is a book and 2 pencils in the bag.

There are many flowers and a tree in the garden.

3、There be 结构的疑问句（把be动词提到句子前面，若句子中有some，要变为any）

Is there a book on the desk Is there any water in the glass

Are there any flowers in the garden

语法专项整理（七）现在进行时

1、概念：表示说话时正在进行的动作。（提示词：Now, look, listen）

.

3

语法专项整理（八）一般现在时

&

1、概念：表示现在存在着的状况，也可理解为习惯性的动作，不断重复发生的事。

提示词：always, often, usually, sometimes, never, every morning, every… ~

2

3

语法专项整理（九）一般将来时

1、概念：表示将来要做的事，要发生的动作。

提示词：tomorrow, tonight, this afternoon, this evening, this weekend, next weekend, next Monday,

2、构成：

（1）be动词+ going to + 动词原形：

I am going to watch TV after dinner.

He is going to buy a book this afternoon.

They are going to go swimming next Sunday.