三年级英语语法大全

语法专项整理一名词
1、名词的种类：
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、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、基数词：表示数目的多少
2、序数词：表示顺序
1、介词的分类
2、at, on, in在表示时间时的区别：
1at用于具体的时刻：at 10:05, at noon, at night,
2on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,
3in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
2、构成：be动词 + 现在分词： be动词后面的动词要加ing,变成动名词;
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.
3、现在分词
规则例词
一般情况,加ing Walk-walking, do-doing
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、构成：
3、动词单三形式：
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：
1be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.
情态动词can
can在英语中有一个特殊的名字,叫做情态动词,表示“能够”,“会”,“能力”后面要跟着表示动作的动词;没有时态和人称的变化;表示不能做什么的时候,后面加上not为cannot,或者缩写为can’t;问别人“能吗”要把can放在句子前面,首字母要大写,句尾别忘加上问号;
Icanswing.Icandraw.
—Shecancanplay.
—Wecantouch.Theycanrun.
—Ican’tcan’tsee.
—Shecan’tcan’thearacar.
三年级下册期末复习资料
回答：Yes,it is. No,it isn’t.
Is he / she…回答：Yes, he /she is. No, he/she isn’t.
Are you …回答：Yes, I am. No, I am not.
Are these/they ...
回答：Yes,they are. No,they aren’t.
Do you...
回答：Yes, I do. No, I don’t.
Does he/she/it…回答：Yes,he does. No. he doesn′t.
Is there...
回答：Yes,there is. No, there isn’t.
Are there...
回答：Yes,there are. No, there aren’t.
特殊疑问句：首先确定特殊疑问词：哪里状语：什么 colour：问颜色表语：谁回答用He is... She is... They are...等：怎么样 many：多少数量 much：多
少钱价格
Who’s he/she
回答：He’s/She’s…
Who are they 回答：They are...
Where is.. 回答：It’s in/on...介词短语
Where are…回答：They are in/on...介词短语
Where are you from 回答：I am from... / We are from...
Where is he / she/ it from 回答： He /She / It is from …
Where are they from 回答： They are from....
What’s in / on / near/ under / beside the …回答：There is /are ...
How many... 回答：There is one./There are two.2个或2个以上的数字 What is it/this/that
单数回答：It’s a …….
What are they/these/those
复数回答：They’re …
日常用语：Put...on/in介词短语... 回答： OK/All right.
Draw... 回答: OK/All right.
Thank you 回答: You’re welcome.
Here’s ... 回答:Thank you
二、名词单数变复数,一般都把s 加;特殊变化有以下：
1.单数复数一个样, sheep--sheep fish- fish goldfish - goldfish
Chinese-Chinese Japanese -Japanese
2.遇到oo 变ee : foot-feet goose- geese tooth - teeth
3.有些变化就是大：mouse – mice child - children man-men woman-women
4 .以s, x, sh, ch 结尾 , ＋es bu s-buses, bo x-boxes, bru sh-brushes,
wat ch-watches
5、以0 结尾有生命的o+es tomat o-tomatoes番茄
例外：kangaroo- kangaroos
6、以辅音字母＋y结尾,改y为i＋es la dy-ladies, ba by-babies stu dy-studies
7.以f 或fe结尾,改f或fe为v＋es kni fe- knives shel f-shelves
三、have与has 的区别：
have, has 都是“有”,
它们的用法有讲究, 表示“某人有某物”,have, has请记住;
he, she, it “有”用has, I, we , they , you 都用 have;
主人单数用 has , 主人复数用 have;
have 就是能力强,疑问否定don’t / do not都用它;
四、have ,has 与there is , there are 的区别
表示某人或某动物有： has / have I have a dog. The dog has a short tail. 表示某地方有： there is / are There is a book in the bag.
五、Some与any 的区别：
some用于肯定句中,any用于否定句和疑问句中;
如：I have some books. I don’t have any books. Do you have any books
六．a 与an 的区别
一般来讲,元音字母即a, e , i, o , u 开头的单词用an
如： an apple an ear an American girl an Australian stamp an old man 七． There be 句型即 there is / there are
意思：表示某地方有某人或某物
原则：就近原则 There be 句型中的be 动词用is 还是用are 由最靠近它的第一个名词是单数还是复数决定;
如： There is a book and some pens on the desk.
There are some pens and a book on the desk.
八.不可数名词： juice chalk tissue 不可数名词没有复数形式
There is some chalk.
There is some juice.
There is some tissue.
九．’s所有格：表示：某人或某动物的
the girl’s name 那个女孩的名字
the teacher’s desk 讲台
the headmaster’s office 校长的办公室
the children’s toys 儿孩子们的玩具
the teachers’ room 教师办公室当名词的复数形式是以“s”结尾时,直接加’
十． be 动词 : is are am 表示“是”
I 用am , you 用are , is 连着he,she ,it ;单数名词用is ,复数名词全用are ;如： I am …. You are…. We are…. They are…. . He is….. She is….. It is….
The girl is …. The boys are…. Ben is…. Janet and Ben are…。