三年级英语语法大全

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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:

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、人称代词

2、物主代词

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、

语法专项整理(五)介词

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)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)

形式例句

第一人称单数 + am + 现在分词I am reading a book.

第三人称单数+ is + 现在分词He is doing homework. She is flying a

kite.

第二人称单数/各人称复数+ are + 现在分词We are cooking dinner. They are cleaning the room.

规则例词

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… ~

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.