小学三年级英语下册句型与语法归纳
一、句型复习
一般疑问句：
Is this/that/it a ...? 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.
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：
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：
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 (bus-buses, box-boxes, brush-brushes,
watch-watches)
5、以0 结尾（有生命的o）+es (tomato-tomatoes)(番茄) 例外：kangaroo- kangaroos
6、以辅音字母＋y结尾，改y为i＋es ( lady-ladies, baby-babies study-studies)
7.以 f 或fe结尾，改f或fe为*＋es (knife- kni*es shelf-shel*es)
三、ha*e与has 的区别：
ha*e, has 都是“有”,
它们的用法有讲究, 表示“某人有某物”，ha*e, has请记住。
he, she, it “有”用has，I, we , they , you 都用 ha*e。
主人单数用 has , 主人复数用 ha*e。
ha*e 就是能力强，疑问（？）否定（don’t / do not）都用它。
四、ha*e ，has 与there is , there are 的区别
表示某人或某动物有：has / ha*e (I ha*e 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 ha*e some books. I don’t ha*e any books. Do you ha*e 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…
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