三年级英语句型与语法归纳

三年级下册期末复习资料一、句型复习：一般疑问句：Isthis/that/ita...?回答：Yes,itis.No,itisn’t.Ishe/she…?回答：Yes,he/sheis.No,he/sheisn’t.Areyou…?回答：Yes,Iam.No,Iamnot.Arethese/they...?回答：Yes,theyare.No,theyaren’t.Doyou...?回答：Yes,Ido.No,Idon’t.Isthere...?回答：Yes,thereis.No,thereisn’t.Arethere...?回答：Yes,thereare.No,therearen’t.特殊疑问句：Who’she/she?回答：He’s/She’s…Whoarethey?回答：Theyare...Whereis..?回答：It’sin/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....What’sin/on/near/under/besidethe…?回答：Thereis/are...Howmany...?回答：Thereisone./Therearetwo.(2个或2个以上的数字)Whatisit/this/that?(单数)回答：It’sa…….Whatarethey/these/those?（复数）回答：They’re…日常用语：Put...on/in(介词短语)...回答：OK/Allright.Draw...回答:OK/Allright.Thankyou!回答:You’rewelcome.Here’s...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-goldfishChinese-ChineseJapanese-Japanese2.遇到oo变ee:foot-feetgoose-geesetooth-teeth3.有些变化就是大：mouse–micechild-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i＋es(lady-ladies,baby-babiesstudy-studies)7.以f或fe结尾，改f或fe为v＋es(knife-knivesshelf-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/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。如：Ihavesomebooks.Idon’thaveanybooks.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thereis/thereare）意思：表示某地方有某人或某物原则：就近原则（Therebe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：Thereisabookandsomepensonthedesk.Therearesomepensandabookonthedesk.八.不可数名词：juicechalktissue（不可数名词没有复数形式）Thereissomechalk.Thereissomejuice.Thereissometissue.九．’s所有格：表示：某人或某动物的thegirl’sname那个女孩的名字theteacher’sdesk讲台theheadmaster’soffice校长的办公室thechildren’stoys儿孩子们的玩具theteachers’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:isaream（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：Iam….Youare….Weare….Theyare…..Heis…..Sheis…..Itis….Thegirlis….Theboysare….Benis….JanetandBenare…十一．代词人称代词Iwetheyyouhesheit我我们他们你/你们他她它物主代词myourtheiryourhisherits我的我们的他们的你的/你们的他的她的它的