三年级英语句型与语法归纳.doc

三年级下册期末复习资料 一、句型复习：一般疑问句：Is this/that/it a .? 回答：Yes,it is. No,it isnt. Is he / she? 回答：Yes, he /she is. No, he/she isnt. Are you ? 回答：Yes, I am. No, I am not. Are these/they .? 回答：Yes,they are. No,they arent. Do you.? 回答：Yes, I do. No, I dont. Is there.? 回答：Yes,there is. No, there isnt. Are there.? 回答：Yes,there are. No, there arent.特殊疑问句：Whos he/she ? 回答：Hes/Shes Who are they? 回答：They are. Where is.? 回答：Its 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. Whats 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： Its a . What are they/these/those? （复数） 回答： Theyre 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: Youre welcome. Heres . 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 -Japanese2.遇到oo 变ee : foot-feet goose- geese tooth - teeth3.有些变化就是大：mouse mice child - children man-men woman-women4 .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- kangaroos6、以辅音字母y结尾，改y为ies ( lady-ladies, baby-babies study-studies)7.以f 或fe结尾，改f或fe为ves (knife- knives shelf-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 （dont / 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 dont 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 girls name 那个女孩的名字 the teachers desk 讲台 the headmasters office 校长的办公室 the childrens 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