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一,英语数词定义和特征1、表示多少和第几的词,叫做数词(numeral。2、数词与不定代词相似,其用法或者相当于形容词,或者相当于名词。种类数词有基序数和序数词两类。基数词表示数量的大小,如one,two,three,four等。序数词表示序数,如first,second,third,fourth等。数词与不定代词、冠词、指示代词、形容词性物主代词等被称作限定词。1、基数词表示多少的词叫做基数词(cardinalnumeral,如:one(一,twenty(二十,hundred(百等。2、序数词表示第几的词叫做序数词(ordinalnumeral,如:first(第一,twentieth(第二十,hundredth(第一百等。基数词100以下的基本的数词以下是最基本的基数词one(1eleven(11thirty(30two(2twelve(12forty(40three(3thirteen(13,fifty(50four(4fourteen(14sixty(60,five(5fifteen(15,seventy(70,six(6sixteen(16,eighty(80seven(7,seventeen(17ninety(90eight(8eighteen(18ahundred(100nine(9,nineteen(19athousand(1000,ten(10twenty(20说明:1、13-19皆以后缀-teen[5ti:n]结尾,它们都有两个重音。注意thirteen,fifteen,eighteen的发音和拼法。2、20-90第十位数的整数均以后缀-ty[ti]结尾。3、十位数和个位数之间须用连字号-。如:twenty-one(二十一,fifty-five(五十五,ninety-nine(九十九等。100以上的基本的基数词100hundred]1,000thousand1,000,000million百万100,000,000hundredmillion一亿1,000million(=billion十亿499fourhundredandninety-nine(101-999如此构成3,876threethousandeighthundredandseventy-six(1001-9999皆如此构成57,453fifty-seventhousandfourhundredandfifty-three(10001-99999皆如此构成768,921sevenhundredsixty-eightthousandninehundredandtwenty-one8,641,457eightmillionsixhundredforty-onethousandfourhundredandfifty-seven50,000,000fiftymillion500,000,000fivehundredmillion5,000,000,000fivethousandmillion(或fivebillion50,000,000,000fiftythousandmillion(或fiftybillion说明:1100和100以上的基数词须用hundred,thousand,million,billion等。2十位数与百位数之间有and。但也有不用and的情况,如850可以读作eighthundredfifty序数词基本的序数词first(第1eleventh(第11,thirtieth(第30second(第2twelfth(第12fortieth(第40third(第3thirteenth(第13fiftieth(第50fourth(第4fourteenth(第14,sixtieth(第60fifth(第5fifteenth(第15seventieth(第70sixth(第6sixteenth(第16eightieth(第80seventh(第7seventeenth(第17ninetieth(第90eighth(第8eighteenth(第18ninth(第9nineteenth(第19tenth(第10twentieth(第20说明:1、英语序数词1-19除第一(first,第二(second,第三(third有特殊形式外,其余均由基数词后加-th[W]构成。2、有几个序数词加-th时拼法不规则,它们是:fifth,eighth,ninth,twelfth。3、十位整数的序数词的构成方法是:先将十位整数基数词的词尾-ty中的y变成i,然后加-eth[iW]。4、基数词几十几变成序数词时,仅将个位数变成序数词,十位数不变。如twenty-one变成twenty-first。5、序数词的缩写形式,由阿拉伯数码后加上序数词的最后两个字母构成。如:1st,2nd,3rd,4th,31st,82nd,93rd,94th等。序数词前使用冠词应注意的两点1.序数词前通常要用定冠词theIt’sthethirdtimeI’vebeenhere.这是我第三次来这儿。Thesecondisbetterthanthefirst.第二个比第一个好。【说明】①表示考试或比赛等的名次时,通常省略定冠词:Shewas(thethirdintheexam.她考试得了第三名。②序数词用作副词时也通常不用冠词:Hecamefirst.他先来。I’llhavetofinishmyhomeworkfirst.我得先把作业做完。③有些习语中的序数词前没有冠词:atfirst开始atfirstsight乍看起来firstofall首先④但若序数词前用了物主代词或名词所有格,则不能再用定冠词:hissecondwife他的第二个妻子Tom’sthirdbook汤姆的第三本书2.序数词前有时可用不定冠词,表示次第在原有基础上的增加:Asecondstudentstoodup.又一个(第二个学生站了起来。Iwanttoreadthebookathirdtime.这本书我想读第三次。序数词前用定冠词和不定冠词的区别在于,定冠词表特指,不定冠词表泛指,有类似another的意思,但比another的意思更明确:Ilikethethirdgirl.我喜欢第三个女孩。(至少有三个女孩供选择,特指Isawathirdgirl.我又看见了第三个女孩。(暗示原来已看见两个,这已是第三个判断下列数词的读法是否正确,正确的用T表示,不正确的用F表示。(1.71seventy-one(2.126thonehundredtwenty-sixth(3.3,059threethousandfifty-nine(4.650sixhundredandfifty(5.10,492tenthousandandfourhundredandninety-two(6.7,848seventhousandeighthundredandforty-eight(7.1,200thonethousandtwohundredth(8.100,000,001onehundredmillionone(9.358,710threehundredandfifty-eightsevenhundredandten(10.8,130,024,519eightbilliononehundredandthirtymilliontwenty-fourthousandfivehundredandnineteen熟记下列数词。1,基数词与序数词基数词:序数词基数词:序数词基数词:序数词1one11eleven2two12313304four14fourteen40515fifteen50fifty6six16sixteen607seven1770seventy818eighteen80eighty9nine1990ninety10ten20twenty100几十几的基数词。例:twenty—oneeighty—threeninety---nine序数词:方法:十位数,个位数变。用英语写出下列单位:百:千:百万:练习:(一.用英语读出下面的数字。A.13B.30C.14D.40E.148F.863G..1,284H.9,6453I.26,317J.314,376H.1,345,670I.32,206,341(二.用英语写出下列词组。1)5米高2)1.8米高3)1.65米高490公斤5)100美元615英镑780元820.50元99月10日1012月25日(三.时间的表达法.(两种表达例;7:25seventwenty—five或twenty—fivepastseven8:45eightforty—five或aquartertonine16:2025:1039:1544:5557:4063:3578:00812:05(1.Thereare___________daysinayear.A.threehundredandsixtyfiveB.threehundredandsixty-fiveC.threehundredsandsixtyfiveD.threehundredsandsixty—five(2.Dannylivesin__________.A.room404B.Room404C.404roomD.404Room(3.Jimisin__________.A.classone,gradesixB.gradeone,classsixC.ClassOne,GradeSixD.GradeOne,ClassSix(4.Thebikecostme_________yuan.A.fivehundredfortyB.fivehundredsfourtyC.fivehundredandfortyD.fivehundredfourty(5.Mytelephonenumberis____________.A.eightyeighttwofortyfourzeronineB.eighteighttwodoublefourOnineC.eightyeighttwoforty-fourzeronineD.eighteighttwofourfourzeronine(6.Isthereanyfoodforus_________?A.tenB.tenthC.thetenthD.theten(7.Maryis_________girl.A.an8yearoldB.8一years—oldC.the8yearsoldD.an8一year—old(8.—Whatdayistoday?—___________A.JuneB.TuesdayC.ItishotD.It’sfine(9.—What’sthedatetoday?—___________A.It’sSaturdayB.It’sJulyC.It’sfineD.It’sJuIy15(10.—Whattimedoyougetupeveryday?A.It’sseveno’clockB.Seveno’clocktimeC.AtsevenD.Onseven1.Thereare___________daysinayear.A.threehundredandsixtyfiveB.threehundredandsixty-fiveC.threehundredsandsixtyfiveD.threehundredsandsixty—five(2.Dannylivesin__________.A.room404B.Room404C.404roomD.404Room(3.Jimisin__________.A.classone,gradesixB.gradeone,classsixC.ClassOne,GradeSixD.GradeOneClassSix(4.Thebikecostme_________yuan.A.fivehundredfortyB.fivehundredsfourtyC.fivehundredandfortyD.fivehundre
本文标题:小升初英语数词
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