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精编WORD文档下载可编缉打印下载文档,远离加班熬夜英语中基数词与序数词的区别和用法篇一:英语基数词和序数词专题数词一、基数词和序数词(cardinalandordinalnumbers):基数词表示数目,序数词表示顺序。1.基数词(1)1-12特殊记;13-19要加-teen;几十-ty做结尾;几十几更易记。(2)注意13thirteen,15fifteen,18eighteen,20twenty,30thirty,40forty,50fifty的书写。(3)hundred百,thousand千,million百万,billion十亿的用法相似e.g.Hundred:one/two/severalhundred;hundredsof…成百上千…2.序数词:(1)基数词变序数词的口诀:基变序,有规律,结尾加上-th;一、二、三特数记;八去t,九去e;-ve要用-f替;单词-ty做结尾,变-y为i,再加-eth.(2)注意1first,2second,3third,5fifth,8eighth,9ninth的拼写。精编WORD文档下载可编缉打印下载文档,远离加班熬夜二、分数、小数、百分数(fracctions、Decimals、Percentage)1.分数:分子用基数词表示,分母用序数词表示,中间的连字号可用不可用。当分子大于1时,作分母的序数词用复数形式。e.g.二分之一a/one-half三分之一a/onethird四分之一a/one-fourth二又五分之一twoandone-fifth2.小数:读法:在小数点后,我们单独读出每个数字。小数点读作point。小数点中的零读作zero,nought或o/??/e.g..3pointthree7.145sevenpointonefourfive36.36thirty-sixpointthreesix3.百分数百分数用基数词或小数与百分号两部分构成。e.g.20%twentypercent47%forty-sevenpercent30.45%thirtypointfourfivepercent三、日期和年份的表示(dateandyear)onMay27读作:OnMay(the)twenty-seventhon27thMay读作:Onthetwenty-seventhofMayin1993读作:innineteenthirty-threein20ll读作:intwothousandandeleven精编WORD文档下载可编缉打印下载文档,远离加班熬夜四、时间和钟点表示:7:15读作sevenfifteen/aquarterpastseven5:30读作fivethirty/halfpastfive6:55读作sixfifty-five/five(minutes)toseven9:10读作ninetena.m.at8:00读作ateight或ateighto’clock五、年龄表示:1.基数词+表示年龄单位的词+old,口语中常可省略yearsold.e.g.Thegirlisonlythree(yearsold.)2.age(名词或动词)Shewasthenfortyyearsofage./shewasthenagedforty(years).“attheageof+基数词”表示“在…岁时”,通常作状语。e.g.Juliecanswimattheageofeight.3.“基数词-year-old”的复合形容词,意为“…岁的”,一般作定语修饰名词。e.g.Sandyisasix-year-oldchild.4.inone’s+整十基数词的复数形式:这一结构表示“在某人几十多岁时“。e.g.Mygrandfathrdiedinhisnineties.teens表示“十多岁”(13-19岁)。e.g.Theboywasinhisteens.这男孩只有十多岁。精编WORD文档下载可编缉打印下载文档,远离加班熬夜Heisnotyetoutofhisteens.他还不满20岁。六、数学运算表达(ArithmeticExpressuib)Add3and9.3plus9equals/is13Subtract3from9.9minus3equals/is6.Multiply3by9.3multipliedby9equals/is9Divide9by39dividedby3equals/is3.+plus(介词)/-minus(介词)/×multiplied(形容词性质的过去分词)/÷divided(形容词性质的过去分词)+add(动词)/-subtract(动词)/×multiply(动词)/÷divide(动词)【易错点提示】1.分数和百分数做主语时,谓语的单复数取决其后面of结构中的名词。注意区别下面两句话:2.基数词可以用在有连字符的合成形容词中,注意其中的名词前无冠词。e.g.atwo-dayholiday=twodays’holidayaten-minutewalk=tenminutes’walk有连词符的复合形容词在剧中只能充当定语,不能作表语。3.在20世纪30年代:inthe1930s在30年代:inthe30s在某人30几岁时:inone’sthirties精编WORD文档下载可编缉打印下载文档,远离加班熬夜4.注意下面的不同表达方式:LessonTwelve=theTwelfthLessonGateFive=TheFifthGateClassone/Grade(Two)two=theninthgrade/pagenine/Room401/ChannelEight5.序数词在表示地名时的用法:FifthAvenue(序数词前无冠词)6.序数词用在奖项前面的用法:winfirstprize(序数词前无冠词)7.序数词表示在原来数字的基础上的“再、又”的用法:Ihavehadtwocakes.Iwanttohaveathirdone.8.一次:once两次:twice三次:threetimes9.倍数的表达:(1)“倍数+形容词/副词的比较级+than”表示“比??大几倍”e.g.Thisropeisthreetimeslongerthanthatone.(2)“倍数+as+形容词/副词+as”表示“?是?的几倍”e.g.ItisfivetimesasbigasEurope.Thepoisonofthekillerbeeistwiceasdangerousasthepoisonofotherbees.(3)“倍数+表度量的名词(size,length,width)+of?”表示“?是?的几倍”。e.g.Theearthis49timesthesizeofthemoon.精编WORD文档下载可编缉打印下载文档,远离加班熬夜【真题典藏】1.LintonisinterestedinChinesehistoryandthisishis_____visittoBeijing.(four)(2008年中考第61题)2.Eric,the_______sonofthefamily,hasaspecialinterestinphysics.(three)(2009年中考题59题)3.Alexis______yearsoldandistakengoodcareofinthekindergarten.(fourth)(2021年中考题58题)【实战演练】1.TheTVnewsreportedthecelebrationoftheoldman’s_______birthday.(hundred)2.Couldyoutellmeifyouliveonthe______floorofthathighrise?(twelve)3.Pleaseopenyourbookatpage________.Let’sreadthetext.(fifth)篇二:基数词与序数词的用法基数词与序数词的用法基数词A.从1——10one,two,three,four,five,six,seven,eight,nine,ten.B.从11——19eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen.这里除eleven,twelve,thirteen,fifteen,eighteen精编WORD文档下载可编缉打印下载文档,远离加班熬夜为特殊形式外,fourteen,sixteen,seventeen,nineteen都是由其个位数形式后添加后缀-teen构成。C.从21——99整数几十中除twenty,thirty,forty,fifty,eighty为特殊形式外,sixty,seventy,ninety都是其个位数形式后添加后缀-ty构成。表示几十几时,在几十和个位基数词形式之间添加连字符“-”21twenty-one76seventy-sixD.百位数648sixhundredandforty-eightE.千位数以上,648twothousandsixhundredandforty-eightF.基数词在表示确切的数字时,不能使用百、千、百万、十亿的复数形式;但是,当基数词表示不确切数字,如成百、成千上万,三三两两时,基数词则以复数形式出现。Therearehundredsofpeopleinthehall.里有数以百计的人。ThousandsandthousandsofpeoplecometovisittheMuseumofQinTerra-CottaWarriorsandHorseseveryday.每天有成千上万的人来参观秦兵马涌博物馆。Theywenttothetheatreintwosandthrees.他们三三两两地来到了剧院。精编WORD文档下载可编缉打印下载文档,远离加班熬夜G.表示人的不确切岁数或年代,用几十的复数形式表示。Hebecameaprofessorinhisthirties.他三十多岁时成为了教授。基数词变序数词的口诀基变序,有规律,词尾加上th,(fourth,sixth)一,二,三,特殊例,结尾字母t,d,d;(first,second,third)八去t,九去e,(eighth,ninth)ve要用f替;(fifth,twelfth)ty将y改成i,th前面有个e;若要碰到几十几,前用基来后用序。1st(first),2nd(second),3rd(third),4th(fourth),5th(fifth),6th(sixth),7th(seventh),8th(eighth),9th(ninth),10th(tenth),11th(eleventh),12th(twelfth),13th(thirteenth),14th(forteenth),15th(fifteenth),16th(sixteenth),17th(seventeenth),18th(eighteenth),19th(nineteenth),20th(twentieth),21st(twenty-first),22nd(twenty-second),精编WORD文档下载可编缉打印下载文档,远离加班熬夜23rd(twenty-third),24th(twenty-fourth),25th(twenty-fifth),26th(twenty-sixth),27th(twenty-seventh),28th(twenty-eighth),29th(twenty-ninth),30th(thirtieth),31st(thirty-first)篇三:基数词和序数词的用法基数词:表示人或事物数量多少的词.序数词:表示人或事物的顺序的词.一.基数词.1.基数词的读法.1)1---12:onetwothreefourfivesixseveneightnineteneleventwelve2)13---19:词尾加-teen:t
本文标题:英语中基数词与序数词的区别和用法
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