三年级英语语法大全

1、语法专项整理（一）名词1名词的种类:专有名词China, Beiji ng, Amy, Janu ary, Mon day,普通名词可数名词单数a book, a pen cil, an apple, an umbrella,复数books, pen cils, apples, umbrellas,不可数名词milk, water, juice, tea, rice,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。Childrens Day专有名词第一个字母要大写，前面不加a, an, the3、 单数名词：（1） 一般名词，在前面力卩a：a book, a computer

2、,（2） 元音字母开头的名词，在前面加an：an egg, anorange（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：情况规则例词一般情况加scat s, apple so, s, x, ch, sh结尾加epotato es, bus es, class es, box es, watch es辅音字母加y结尾去y力卩iesbutterfly-butterflies元音字母加y结尾加sdays, key s, boy sf, fe结尾变成vesleaf-lea ves, kni fe-k nives不规

3、则:情况例词改变元音foot-feet, tooth-teeth, goose-geese, man-men, woma n-wome n,词尾发生变化childchildre n, mouse- mice单复数同形sheep-sheep, deer-deer, fish-fish, people-people5、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, mu

4、tt on语法专项整理（二）代词1人称代词人称单数复数主格宾格主格宾格第一人称Imeweus第二人称youyouyouyou第三人称hehimtheythemsheheritit2、物主代词人称单数复数形容词性名词性形容词性名词性第一人称mymi neourours第二人称youryoursyouryours第三人称hishistheirtheirsherhersitsits3、指示代词：this, that, these, those如:This is my doll. That is Marys.Look at the those sheep. They are eati ng grass

5、.语法专项整理（三）数词1基数词：表示数目的多少oneone hun dredtwotwentyone thousandthreethirtee nthirty三位数要在百位和十位之间加and如:one hundred andsixtee n 116onehun dredandfourfourtee nfortyfivefiftee nfiftysixsixtee nsixtyseve nseve ntee n seve ntyeighteightee neightytwe nty-o ne 121ninenin etee nninetyten加teen加ty两位数（非整十）中间加连字符a 如

6、：fifty-one 51eleve ntwelve2、序数词：表示顺序第一至第十第十一至第十九第二十及以上firsteleve nthsecondtwelfthtwen tieththirdthirtee nththirtiethfourthfourtee nthfortiethfifthfiftee nthfiftiethsixthsixtee nthsixtiethseve nthseve ntee nthseve ntietheightheightee ntheightiethninthnin etee nthnin etiethten th除第1、2、3,直接加thty结尾，变y为i

7、e，再加th语法专项整理（五）介词1介词的分类词类例词时间介词at 7:00, in the morning, on Mon day, before lun ch,after dinner,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, climbup the tree, skidown

8、themountain, run out of the door方式介词by bike, on foot, playwith my friend2、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 Mon day, on New Years Day, on June 1st, on my birthday, on Friday morning, on the weeke nd,（3）in用于某一段时间（常与上午、下午、晚上连用，

9、常与月份、季节、年份连用）in the morning, in the after noon, in the eve ning, in March, in spri ng, in2007,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 so

10、me 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 pen cils in the bag.There are many flowers and a tree in the garde n.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 garde n?语法专项

11、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:形式例句第一人称单数+ am +现在分词I am read ing 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 cook ing dinner. They are clea ning theroom.3、现在分词规则例词一般情况，加ingWalk-walk ing, do-do inge结尾，去e力卩ingdan c

12、e-da ncing,make-maki ng,write-writi ng,have-hav ing,汉堡单词，双写加ingrun -ru nning, swim-swimmi ng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, every2、构成：分类形式例句Be动词的 一般现在时第一人称单数+ amI am a stude nt.第三人称单数+ isHe is a boy. She is pretty第二人称单数/各人

13、称复数+areWe are good frie nds.其他动词的一般现在时第三人称单数+动词单三形 式She works in the hospital. He live s in thecity.其他人称+动词原形They work in the farm. We live in thevillage.3、动词单三形式:规则例词一般动词，加sworkworks, makemakeso，ch，sh，s，x结尾力卩eswatch-watches,wash-washes,go-goes,do-does辅音子母加y，去y加iesflyflies, cry-cries,元音字母加y，直接加sbuy-buys, playplays, stay-stays,不规则形式have-has are,amis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, toni ght, this after noon,