基数词序数词基数词（0-100）1 one2 two3 three4 four5 five6 six7 seven8 eight9 nine10 ten11 eleven12 twelve13 thirteen14 fourteen15 fifteen16 sixteen17 seventeen18 eighteen19 nineteen20 twenty 21 twenty-one22 twenty-two23 twenty-three24 twenty-four25 twenty-five26 twenty-six27 twenty-seven28 twenty-eight29 twenty-nine30 thirty31 thirty-one32 thirty-two33 thirty-three34 thirty-four35 thirty-five36 thirty-six37 thirty-seven38 thirty-eight39 thirty-nine40 forty41 forty-one42 forty-two43 forty-three44 forty-four45 forty-five46 forty-six47 forty-seven48 forty-eight49 forty-nine50 fifty51 fifty-one52 fifty-two53 fifty-three54 fifty-four55 fifty-five56 fifty-six57 fifty-seven58 fifty-eight59 fifty-nine60 sixty61 sixty-one62 sixty-two63 sixty-three64 sixty-four65 sixty-five66 sixty-six67 sixty-seven68 sixty-eight69 sixty-nine70 seventy71 seventy-one72 seventy-two73 seventy-three74 seventy-four75 seventy-five76 seventy-six77 seventy-seven78 seventy-eight79 seventy-nine80 eighty81 eighty-one82 eighty-two83 eighty-three84 eighty-four85 eighty-five86 eighty-six87 eighty-seven88 eighty-eight89 eighty-nine90 ninety91 ninety-one92 ninety-two93 ninety-three94 ninety-four95 ninety-five96 ninety-six97 ninety-seven98 ninety-eight99 ninety-nine100 one hundred序数词：第1 first第2 second第3 third第4 fourth第5 fifth第6 sixth第7 seventh第8 eighth第9 ninth第10 tenth第11 eleventh第12 twelfth第13 thirteenth第14 fourteenth第15 fifteenth第16 sixteenth第17 seventeenth 第18 eighteenth第19 nineteenth第20 twentieth第21 twenty-first第22 twenty-second 第23 twenty-third第24 twenty-fourth第25 twenty-fifth第26 twenty-sixth第27twenty-seventh第28 twenty-eighth第29 twenty-ninth第30 thirtieth第31 thirty-first第32 thirty-second第33 thirty-third第34 thirty-fourth第35 thirty-fifth第36 thirty-sixth第37 thirty-seventh第38 thirty-eighth第39 thirty-ninth第40 fortieth第41 forty-first第42 forty-second第43 forty-third第44 forty-fourth第45 forty-fifth第46 forty-sixth第47 forty-seventh第48 forty-eighth第49 forty-ninth第50 fiftieth第51 fifty-first第52 fifty-second第53 fifty-third第54 fifty-fourth第55 fifty-fifth第56 fifty-sixth第57 fifty-seventh第58 fifty-eighth第59 fifty-ninth第60 sixtieth第61 sixty-first第62 sixty-second第63 sixty-third第54 sixty-fourth第65 sixty-fifth第66 sixty-sixth第67 sixty-seventh第68 sixty-eighth第69 sixty-ninth第70 seventieth第71 seventy-first第72seventy-second第73 seventy-third第74 seventy-fourth第75 seventy-fifth第76 seventy-sixth第77seventy-seventh第78 seventy-eighth第79 seventy-ninth第80 eightieth第81 eighty-first第82 eighty-second第83 eighty-third第84 eighty-fourth第85 eighty-fifth第86 eighty-sixth第87 eighty-seventh第88 eighty-eighth第89 eighty-ninth第90 ninetieth第91 ninety-first第92 ninety-second第93 ninety-third第94 ninety-fourth第95 ninety-fifth第96 ninety-sixth第97 ninety-seventh第98 ninety-eighth第99 ninety-ninth第100 onehundredth序数词下面把1－99的序数词分为四类:1、第一类first (1st) 第一second (2nd) 第二third (3rd) 第三（在括号里的是缩写形式，均在阿拉伯数字后面加上相应序数词的最后两个字母构成，以下各类与此相同。
关于英语中星期，月份以及序数词的书写整理一. 星期：Monday 星期一Tuesday 星期二Wednesday 星期三Thursday 星期四Friday 星期五Saturday星期六Sunday 星期日题：二. 四季：spring春summer夏fall / autumn秋winter冬三. 月份：一月Jan. January 二月Feb. February 三月Mar. March 四月Apr. April 五月May. May 六月June. June 七月July. July 八月Aug. August 九月Sept. September 十月Oct. October 十一月Nov. November 十二月Dec. December 注意：正规的英语中六月，七月，九月的缩写是4个字母，其他月份3个字母。
挂历上见到的Jun，Jul, Sep是错误的。
四. 序数词1－100的序数词分为四个类。
1、第一类first (1st) 第一 second (2nd) 第二 third (3rd) 第三（在括号里的是缩写形式，均在阿拉伯数字后面加上相应序数词的最后两个字母构成，以下各类与此相同。
）这类序数词只有三个，在整个序数词里面是特殊的，就和第一类基数词一样，需要逐个地硬记下来。
2、第二类：fourth (4th) 第四 fifth (5th) 第五 sixth (6th) 第六 seventh (7th) 第七eighth (8th) 第八 ninth (9th)第九 tenth (10th) 第十eleventh (11th) 第十一twelfth (12th) 第十二 thirteenth (13th) 第十三 fourteenth (14th) 第十四fifteenth (15th) 第十五 sixteenth (16th) 第十六 seventeenth (17th) 第十七eighteenth (18th) 第十八 nineteenth (19th) 第十九这一类序数词共有十六个。
基数词序数词对照表1-100 基数词与序数词对照表基数词序数词序数词的缩写1 one 第1 first 1st2 two 第2 second 2nd3 three 第3 third 3rd4 four 第4 fourth 4th5 five 第5 fifth 5th6 six 第5 sixth 6th7 seven 第7 seventh 7th8 eight 第8 eighth 8th9 nine 第9 ninth 9th10 ten 第10 tenth 10th11 eleven 第11 eleventh 11th12 twelve 第12 twelfth 12th13 thirteen 第13 thirteenth 13th14 fourteen 第14 fourteenth 14th15 fifteen 第15 fifteenth 15th16 sixteen 第16 sixteenth 16th17 seventeen 第17 seventeenth 17th18 eighteen 第18 eighteenth 18th19 nineteen 第19 nineteenth 19th20 twenty 第20 twentieth 20th21 twenty-one 第21 twenty-first 21st22 twenty-two 第22 twenty-second 22nd23 twenty-three 第23 twenty-third 23rd24 twenty-four 第24 twenty-fourth 24th25 twenty-five 第25 twenty-fifth 25th26 twenty-six 第26 twenty-sixth 26th27 twenty-seven 第27 twenty-seventh 27th28 twenty-eight 第28 twenty-eighth 28th29 twenty-nine 第29 twenty-ninth 29th30 thirty 第30 thirtieth 30th31 thirty-one 第31 thirty-first 31st32 thirty-two 第32 thirty-second 32nd33 thirty- three 第33 thirty-third 33rd34 thirty-four 第34 thirty-fourth 34th35 thirty-five 第35 thirty-fifth 35th36 thirty-six 第36 thirty-sixth 36th37 thirty- seven 第37 thirty-seventh 37th38 thirty-eight 第38 thirty-eighth 38th39 thirty-nine 第39 thirty-ninth 39th40 forty 第40 fortieth 40th41 forty-one 第41 forty-first 41st42 forty-two 第42 forty-second 42nd43 forty-three 第43 forty-third 43rd44 forty-four 第44 forty-fourth 44th45 forty-five 第45 forty-fifth 45th46 forty-six 第46 forty-sixth 46th47 forty-seven 第47 forty-seventh 47th48 forty-eight 第48 forty-eighth 48th49 forty-nine 第49 forty-ninth 49th50 fifty 第50 fiftieth 50th51 fifty-one 第51 fifty-first 51st52 fifty-two 第52 fifty-second 52nd53 fifty-three 第53 fifty-third 53rd54 fifty-four 第54 fifty-fourth 54th55 fifty-five 第55 fifty-fifth 55th56 fifty-six 第56 fifty-sixth 56th57 fifty-seven 第57 fifty-seventh 57th58 fifty-eight 第58 fifty-eighth 58th59 fifty-nine 第59 fifty-ninth 59th60 sixty 第60 sixtieth 60th61 sixty-one 第61 sixty-first 61st62 sixty-two 第62 sixty-second 62nd63 sixty-three 第63 sixty-third 63rd64 sixty-four 第64 sixty-fourth 64th65 sixty-five 第65 sixty-fifth 65th66 sixty-six 第66 sixty-sixth 66th67 sixty-seven 第67 sixty-seventh 67th68 sixty-eight 第68 sixty-eighth 68th69 sixty-nine 第69 sixty-ninth 69th70 seventy 第70 seventieth 70th71 seventy-one 第71 seventy-first 71st72 seven-two 第72 seventy-second 72nd73 seventy-three 第73 seventy-third 73rd74 seventy-four 第74 seventy-fourth 74th75 seventy-five 第75 seventy-fifth 75th76 seventy-six 第76 seventy-sixth 76th77 seventy-seven 第77 seventy-seventh 77th78 seventy-eight 第78 seventy-eighth 78th79 seventy-nine 第79 seventy-ninth 79th80 eighty 第80 eightieth 80th81 eighty-one 第81 eighty-first 81st82 eighty- two 第82 eighty-second 82nd83 eighty -three 第83 eighty-third 83rd84 eighty-four 第84 eighty-fourth 84th85 eighty-five 第85 eighty-fifth 85th86 eighty-six 第86 eighty-sixth 86th87 eighty-seven 第87 eighty-seventh 87th88 eighty-eight 第88 eighty-eighth 88th89 eighty-nine 第89 eighty-ninth 89th90 ninety 第90 ninetieth 90th91 ninety-one 第91 ninety-first 91st92 ninety-two 第92 ninety-second 92nd93 ninety-three 第93 ninety-third 93rd94 ninety-four 第94 ninety-fourth 94th95 ninety-five 第95 ninety-fifth 95th96 ninety-six 第96 ninety-sixth 96th97 ninety-seven 第97 ninety-seventh 97th98 ninety-eight 第98 ninety-eighth 98th99 ninety-nine 第99 ninety-ninth 99th 100 one hundred 第100 one hundredth 100th。
基数词序数词基数词0-1001 one2 two3 three4 four5 five6 six7 seven8 eight9 nine10 ten11 eleven12 twelve13 thirteen14 fourteen15 fifteen16 sixteen17 seventeen18 eighteen19 nineteen20 twenty 21 twenty-one22 twenty-two23 twenty-three24 twenty-four25 twenty-five26 twenty-six27 twenty-seven28 twenty-eight29 twenty-nine30 thirty31 thirty-one32 thirty-two33 thirty-three34 thirty-four35 thirty-five36 thirty-six37 thirty-seven38 thirty-eight39 thirty-nine40 forty41 forty-one42 forty-two43 forty-three44 forty-four45 forty-five46 forty-six47 forty-seven48 forty-eight49 forty-nine50 fifty51 fifty-one52 fifty-two53 fifty-three54 fifty-four55 fifty-five56 fifty-six57 fifty-seven58 fifty-eight59 fifty-nine60 sixty61 sixty-one62 sixty-two63 sixty-three64 sixty-four65 sixty-five66 sixty-six67 sixty-seven68 sixty-eight69 sixty-nine70 seventy71 seventy-one72 seventy-two73 seventy-three74 seventy-four75 seventy-five76 seventy-six77 seventy-seven78 seventy-eight79 seventy-nine80 eighty81 eighty-one82 eighty-two83 eighty-three84 eighty-four85 eighty-five86 eighty-six87 eighty-seven88 eighty-eight89 eighty-nine90 ninety91 ninety-one92 ninety-two93 ninety-three94 ninety-four95 ninety-five96 ninety-six97 ninety-seven98 ninety-eight99 ninety-nine100 one hundred序数词：第1 first第2 second第3 third第4 fourth第5 fifth第6 sixth第7 seventh第8 eighth第9 ninth第10 tenth第11 eleventh第12 twelfth第13 thirteenth第14 fourteenth第15 fifteenth第16 sixteenth第17 seventeenth 第18 eighteenth第19 nineteenth第20 twentieth第21 twenty-first第22 twenty-second 第23 twenty-third第24 twenty-fourth第25 twenty-fifth第26 twenty-sixth第27twenty-seventh第28 twenty-eighth第29 twenty-ninth第30 thirtieth第31 thirty-first第32 thirty-second第33 thirty-third第34 thirty-fourth第35 thirty-fifth第36 thirty-sixth第37 thirty-seventh第38 thirty-eighth第39 thirty-ninth第40 fortieth第41 forty-first第42 forty-second第43 forty-third第44 forty-fourth第45 forty-fifth第46 forty-sixth第47 forty-seventh第48 forty-eighth第49 forty-ninth第50 fiftieth第51 fifty-first第52 fifty-second第53 fifty-third第54 fifty-fourth第55 fifty-fifth第56 fifty-sixth第57 fifty-seventh第58 fifty-eighth第59 fifty-ninth第60 sixtieth第61 sixty-first第62 sixty-second第63 sixty-third第54 sixty-fourth第65 sixty-fifth第66 sixty-sixth第67 sixty-seventh第68 sixty-eighth第69 sixty-ninth第70 seventieth第71 seventy-first第72seventy-second第73 seventy-third第74 seventy-fourth第75 seventy-fifth第76 seventy-sixth第77seventy-seventh第78 seventy-eighth第79 seventy-ninth第80 eightieth第81 eighty-first第82 eighty-second第83 eighty-third第84 eighty-fourth第85 eighty-fifth第86 eighty-sixth第87 eighty-seventh第88 eighty-eighth第89 eighty-ninth第90 ninetieth第91 ninety-first第92 ninety-second第93 ninety-third第94 ninety-fourth第95 ninety-fifth第96 ninety-sixth第97 ninety-seventh第98 ninety-eighth第99 ninety-ninth第100 onehundredth序数词下面把1－99的序数词分为四类:1、第一类first 1st 第一second 2nd 第二third 3rd 第三在括号里的是缩写形式,均在阿拉伯数字后面加上相应序数词的最后两个字母构成,以下各类与此相同;这类序数词只有三个,在整个序数词里面是特殊的,就和第一类基数词一样,需要逐个地硬记下来2、第二类：fourth 4th 第四fifth 5th 第五sixth 6th 第六seventh 7th 第七eighth 8th 第八ninth 9th 第九tenth 10th 第十eleventh 11th 第十一twelfth 12th 第十二thirteenth 13th 第十三fourteenth 14th 第十四fifteenth 15th 第十五sixteenth 16th 第十六seventeenth 17th 第十七eighteenth 18th 第十八nineteenth 19th 第十九hundredth100th第一百这一类序数词共有十七个;均在相应的基数词后面加上后缀－th构成;要注意其中fifth、eighth、ninth、twelfth四个词的拼法3、第三类：twentieth 20th 第二十thirtieth 30th 第三十fortieth 40th 第四十fiftieth 50th 第五十sixtieth 60th 第六十seventieth 70th 第七十eightieth 80th 第八十ninetieth 90th 第九十这一类全是十位整数的序数词,共八个;它们的构成方法是：先将相应的十位整数的基数词词尾－ty中的y改成i,然后在加上后缀－eth4、第四类：thirty-first 31st 第三十一sixty-second 62nd 第六十二eighty-seventh 87th 第八十七ninety-eighth 98th 第九十八这类表示“第几十几”的序数词,跟表示“几十几”的基数词一样简单;在构成方法上均由基数词“几十几”变化而来,十位数不变,仅把个位上的基数词变成序数词就行了基数词变序数词口诀英语中基数词变为序数词时,一般在基数词后加词尾-th,但有几个词变化特殊,只要记住下面这个口诀,这些问题即可迎刃而解;一、二、三,单独记；八去t,九除e, ve要用f替,整十基数变序数,先把ty变成tie；要是遇到两位数,十位基数个位序,th最后加上去解析口诀：one→first, two→second, three→third这三个词变化特殊,要单独记；eight→eighth, nine→ninth, 八去t,九去e后再加-th；five→fifth, twelve→twelfth,五、十二把ve换成f再加-th；twenty→twentieth, thirty→thirtieth... 整十先把词尾y改为ie再加-th;两位数时则十位数用基数词,个位数用序数词,如：twenty-first;基数词和序数词一．表示数目多少的词叫基数词：100 one hundred 1000 one thousand 1000000 one million 00 one billionone trilliononcetwicethree timesfour timesfortnight两星期,14天dozen 表示的是12score是20century 是世纪,100年decade 是10年double 是2quarter 是四分之一single 是1个,单一的基数词及序数词重要用法1. 基数词的用法用于表示事物的数量,在表示时,要特别注意hundred, thousand, million, billion 等几个词的用法：若其前用了,则不论其面是否有of,都必须用单数形式此时若带of则通常表示特定范围中的一部分；若泛指数百、数千、数百万等,则用hundreds of, thousands of, millions of 等这样的结构;如：Two hundred of the students are needed to plant trees this morning. 今天中午需要200个学生去植树;Hundreds of people attended the famous director’s farewell concert. 好几百人出席了这位著名指挥家的告别音乐会;Thousands upon thousands of English words come from foreign tongues. 成千上万英语单词来自外来语;2. 基数词的复数用法逢整“十”的的复数形式可用于表示某人的大约年岁和世纪中的年代;如：The war broke out in the nineties. 这次战争爆发于90年代;Karl Mark began to learn the Russian language in his fiftieth. 马克思五十多岁开始学俄语;3. 序数词的用法用于表示事物的顺序,一般由与之相应的基数词加th构成但有特殊形式需特别记忆；主要用作定语,前面一般要加定冠词或物主代词;如：Their second son is a doctor. 他们的二儿子是个博士;The hundredth cave that George has discovered in his lifetime is near the Alps. 乔治一生中找到的第一百个山洞在阿尔卑斯山附近;注：前有时可用不定冠词,表示“每一,又一”;如：We’ll have to do it a second time. 我们将再做一遍;词尾加上-thfourth,sixth一、二、三,特殊例,结尾字母t,d,dfirst,second,third 八去t,九去e,eighth,ninthve要用 f替;fifth,twelfthty将y改成i, th前面有个e;若是碰到几十几, 前用基来后用序;或记忆为：一、二、三,特殊记,词尾字母t,d,d 八加h,九减e,逢十改y为ief要把ve替,还有th莫忘记语言实践内容梳理1. 数词分基数词和序数词;基数词表示数目,序数词表示顺序;基数词11～12为独立的单词,有其各自的形式;如one,two,three,…tw elve等;213～19都以teen结尾,单词中的两个音节都读重音;如thirteen,fourteen…nineteen等;320～90十位数的整数都以-ty结尾,单词中的第一个音节重读;如twenty,thirty…ninety等;4hundred是“百”,thousand是“千”,ten thousand是“万”,one hundred thousand 是“十万”,million是“百万”,ten million 是“千万”;5在表示一个具体的数目时,hundred,thousand,million 后面都不能加“s”;如:two thousand,seven million等;在表示一个不确定的数目时,hundred, thousand,million 后面要加“s”;如：“成千上万”thousands of,“数百万”millions of 等;620以上的基数词的读法：a. 两位数的读法,在十位和个位之间加连字符即“-”如：22 twenty-two, 35 thirty-fiveb. 三位数的读法,在百位之后加“and”;如：136 one hundred and thirty-six, 498 four hundred and ninety-eightc. 四位及四位以上数的读法,只在百位之后加and,而千位、万位以上的数后面不加任何词,只按顺序读;如：1 234 one thousand two hundred and thirty-four,5 864 327 five million eight hundred and sixty-four thousand three hundred and twenty-seven2. 序数词1第一、第二、第三分别为first,second,third;2第四到第十九都由相应的基数词加th构成;如：fourth,seventh等;要注意fifth,eighth,ninth和twelfth的拼写法和读法;3十位数的序数词由相应的基数词去掉词尾y加ieth构成;如：twentieth,fiftieth 等;4第二十一到九十九等,前面的十位数用基数词,后面的个位数用序数词,中间用连字符“-”连接;如：twenty-first,twenty-ninth,seventy-eighth 等;5第一百、第一千、第一百万分别在相应的基数词后面加th;即:hundredth,thousandth,millionth;6序数词之前一般要加定冠词或代词;如：The second truck is carrying fewer baskets than the first one.This is her first visit to China.有时,序数词前用不定冠词,表示“再一、又一”的意思;如：He failed once. Then he tried a second time. 他曾经失败一次,然后他又试了一次;3. 年月日表达法1年份,每两位数读一个词;如：1949 nineteen forty-nine 1900 nineteen hundred2先月后日,日子要读成序数词;如：5月1日May the first可写成May 13月8日March the eighth可写成March 83先日后月,在月份之前加of;如：5月1日the first of May3月8日the eighth of March4年月日同时出现,把年代放在最后,年代前用逗号隔开;如1949年10月1日,可写成：the first of October,1949或October thefirst,1949;4. 时刻表达法1用基数词,按顺序读;如：7：30 seven thirty, 8：15 eight fifteen, 12：00 twelve o’clock2用介词past,past之前为分钟数须在半小时以内,包括半小时,past之后为钟点数;如：6：11 eleven past six ,7：15 fifteen a quarter past seven9：30 thirty half past nine3用介词to,to前为分钟数须在半小时以上,不包括半小时,to之后为下一个钟点数, 表示“差几分到几点”;如：6：58 two to seven,7：45 fifteen a quarter to eight5. 编号表达法1用No. No. 读Number后加数字,数字读基数词;如：No. 1 Number One, No. 3 bus Number Three bus2用序数词词序为：the + 序数词+名词如:the first lesson,the Second World War3用基数词词序为：名词词首字母大写＋基数词如用英语拼写,词首字母也要大写如：Lesson One,Class Four,World War Two;此种方法较常见,特别是当数字较长时;如：Room 306,No. 106 Middle School;6. 分数表达法分子用基数词,分母用序数词,若分子大于1时,分母要在序数词后加s;如：1/3,one third,2/5,two fifths等;7. 数学运算的表达法“加”用plus或and,“减”用minus,“乘”用times,“除”用divided by,动词多用单数;如：3+5=8 Three plus/and five is eight. 9-2=7 Nine minus two is seven.6×5=30 Five times six is thirty. 8÷2=4 Eight divided by two is four。
