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,beijing,amy,january,monday,单数abook,apencil,anapple,anumbrella,普通可数名词复数books,pencils,apples,umbrellas,名词不可数名词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。childrensday专有名词第一个字母要大写，前面不加3、单数名词：（1）一般名词，在前面加a：abook,acomputer,a,an,the（2）元音字母开头的名词，在前面加an：anegg,anor

2、ange（元音字母是：a,e,i,o,u）少数例外:anhour,auniversity(4、复数名词：规则：以元音发音为准)情况规则例词一般情况o,s,x,ch,sh结尾加s加escats,applespotatoes,buses,classes,boxes,watches辅音字母加y结尾去y加iesbutterfly-butterflies元音字母加y结尾f,fe结尾不规则：加s变成vesdays,keys,boysleaf-leaves,knife-knives情况改变元音词尾发生变化单复数同形例词foot-feet,tooth-teeth,goose-geese,man-men,wom

3、an-women,childchildren,mouse-micesheep-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,mutton1.1、人称代词单数语法专项整理（二）代词复数人称第一人称第二人称主格iyou宾格meyou主格weyou宾格usyouhe第三人称sheit2、物主代词单数himherit复数

4、人称theythem形容词性名词性形容词性名词性第一人称第二人称myyourmineyoursouryouroursyours第三人称hisheritshishersitstheirtheirs3、指示代词：this,that,these,those如：thisismydoll.thatismarys.lookatthethosesheep.theyareeatinggrass.语法专项整理（三）数词1、基数词：表示数目的多少onetwothreethirteentwentythirtyonehundredonethousand三位数要在百位和十位之间加and如：onehundredandsi

5、xteen116fourfourteenfortyfivesixseverneightfifteensixteenseventeeneighteenfiftysixtyseventyeightyonehundredandtwenty-one1212.ninetennineteen加teenninety加ty两位数（非整十）中间加连字符“-”eleventwelve2、序数词：表示顺序第一至第十firstsecondthirdfourthfifthsixthseventheighthninthtenth如：fifty-one51第十一至第十九eleventhtwelfththirteenthfo

6、urteenthfifteenthsixteenthseventeentheighteenthnineteenth除第1、2、3,直接加th第二十及以上twentieththirtiethfortiethfiftiethsixtiethseventietheightiethninetiethty结尾，变y为ie，再加th1、介词的分类词类语法专项整理（五）介词例词时间介词at7:00,inthemorning,onmonday,beforelunch,afterdinner,方位介词onthedesk,inthepark,athome,underthetree,behindthedoor,ov

7、erthebed,infrontofthehouse,nearthelake,nexttothecinema,动向介词gotoschool,jumpintothewater,climbupthetree,skidownthemountain,runoutofthedoor方式介词bybike,onfoot,playwithmyfriend2、at,on,in在表示时间时的区别：（1）at用于具体的时刻：at10:05,atnoon,atnight,（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）3.：.sonmonday,onnewyearday,onj

8、une1fridaymorning,ontheweekend,st,onmybirthday,on（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）：inthemorning,intheafternoon,intheevening,inmarch,inspring,in2007,语法专项整理（六）therebe结构1、概念：therebe结构又叫存在句，表示某地存在某物。2、therebe结构的肯定句（1）thereis+（2）thereis+（3）thereare+可数名词单数+地点：thereisabookonthedesk.不可数名词+地点：thereisso

9、mewaterintheglass可数名词复数+地点：therearesomeflowersinthegarden.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therethereisabookand2pencilsinthebag.aremanyflowersandatreeinthegarden.3、therebe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）isthereabookonthedesk?isthereanywaterintheglass?arethereanyflowersinthegarden?语法专项整理（七）现在

10、进行时1、概念：表示说话时正在进行的动作。）（提示词：now,look,listen2、构成：be动词+现在分词：形式be动词后面的动词要加ing，变成动名词。例句第一人称单数+am+现在分词第三人称单数+is+现在分词iamreadingabook.heisdoinghomework.sheisflyingakite.第二人称单数/各人称复数+are+3、现在分词规则现在分词wearecookingdinner.theyarecleaningtheroom.例词一般情况，加inge结尾，去e加ing汉堡单词，双写加ingwalk-walking,do-doingdance-dancing,m

11、ake-making,write-writing,have-having,run-running,swim-swimminghoppingsitting4.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,everymorning,every2、构成：形分类式be动词的一第一人称单数+am例句iamastudent.第般现在时三人称单数+isheisaboy.sheispretty第二人称单数/各人称复数+arewearegoodfriends.其他动词的第三人

12、称单数+动词单三形式sheworksinthehospital.helivesinthecity.其一般现在时他人称+动词原形3、动词单三形式：规则一般动词,加so，ch，sh，s，x结尾加es辅音字母加y，去y加iestheyworkinthefarm.weliveinthevillage.例词workworks,makemakeswatch-watches,wash-washes,go-goes,do-doesflyflies,cry-cries,元音字母加y，直接加s不规则形式buy-buys,playhave-hasare,amplays,stay-stays,is语法专项整理（九）一

13、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,thisafternoon,thisevening,thisweekend,nextweekend,nextmonday,2、构成：（1）be动词+goingto+iamgoingtowatchheisgoingtobuy动词原形：tvafterdinner.abookthisafternoon.theyaregoingtogoswimmingnextsunday.5.情态动词cancan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

14、。表示不能做什么的时候,后面加上not为cannot,或者缩写为cant。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.shecanjump.hecanplay.wecantouch.theycanrun.ticantsing.youcansee.tshecantdance.hecanhearacar.6.三年级下册期末复习资料一、句型复习：一般疑问句：有be动词把be动词提前，没be动词需加助动词isthis/that/ita.?回答：yes,itis.no,itisnt.ishe/she,?areyou,?回答：yes,he

15、/sheis.no,he/sheisn.t回答：yes,iam.no,iamnot.arethese/they.?回答：yes,theyare.no,theyarent.doyou.?回答：yes,ido.no,idon.tdoeshe/she/it,?回答：yes,hedoes.no.hedoesnt.isthere.?arethere.?回答：yes,thereis.no,there回答：yes,thereare.no,thereisn.taren.t特殊疑问句：首先确定特殊疑问词1.where：哪里（状语）2.what：什么3.whatcolour：问颜色等）（表语）4.who：谁(回答

16、用heis.sheis.theyare.5.how：怎么样6.howmany：多少数量7.howmuch：多少钱价格whoshe/she?回答：hes/she,swhoarethey?回答：theyare.whereis.?回答：itsin/on.(介词短语)whereare,?回答：theyarein/on.(介词短语)whereareyoufrom?回答：iamfrom./wearefrom.whereishe/she/itfrom?回答：he/she/itisfrom,wherearetheyfrom?回答：theyarefrom.whatsin/on/near/under/beside

17、the,?回答：thereis/are.howmany.?回答：thereisone./therearetwo.(2个或2个以上的数字)swhatisit/this/that?(单数)回答：ita,.whatarethey/these/those?（复数）回答：theyre,日常用语：put.on/in(介词短语).回答：ok/allright.draw.回答:ok/allright.thankyou!回答:yourewelcome.heres.回答:thankyou!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-sheepfish-fishgoldfish

18、-goldfishchinese-chinesejapanese-japanese2.遇到oo变ee:foot-feetgoose-geesetooth-teeth3.有些变化就是大：mousemicechild-childrenman-menwoman-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-babiesst

19、udy-studies)7.以f或fe结尾，改f或fe为ves(knife-knivesshelf-shelves)7.有三、have与has的区别：have,has都是“”,。某，它们的用法有讲究表示“人有某物”have,has请记住有用he,she,it“”has，i,we,they,you都用have。主人单数用has,主人复数用have。thave就是能力强，疑问（？）否定（don/donot）都用它。四、have，has与thereis,thereare的区别表示某人或某动物有：has/have(ihaveadog.thedoghasashorttail.)表示某地方有：thereis/are(thereisabookinthebag.)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。t如：ihavesomebooks.idonhaveanybooks.doyouhaveanybooks?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：anappleanearanamericangirlanaustralianstampanoldman七therebe句型（即t