小学英语基数词

基数词，one, two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty 序数词，first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth thirteenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth twentieth

1到 100的序数词和基数词第 1 first 1st 1 one第 2 second 2nd 2 two第 3 third 3rd 3 three第 4 fourth 4th . 4 four第 5 fifth 5th 5 five第 6 sixth 6th 6 six第 7 seventh 7th 7 seven第 8 eighth 8th 8 eight第 9 ninth 9th 9 nine第 10 tenth 10th 10 ten第 11 eleventh 11th 11 eleven第 12 twelfth 12th 12 twelve第 13 thirteenth 13th 13 thirteen第 14 fourteenth 14th 14 fourteen第 15 fifteenth 15th 15 fifteen第 16 sixteenth 16th 16 sixteen第 17 seventeenth 17th 17 seventeen第 18 eighteenth 18th 18 eighteen第 19 nineteenth 19th 19 nineteen第 20 twentieth 20th 20 twenty第21 twenty-first 21st 21 twenty-one第22 twenty-second 22nd 22 twenty-two第23 twenty-third 23nd 23 twenty-three第24 twenty-fourth 24th 24 twenty-four第25 twenty-fifth 25th 25 twenty-five第26 twenty-six 26 th一下类推第 30 thirtieth 30th 30 thirty第 40 fortieth 40th 40 forty第 50 fiftieth 50 fifty第 60 sixtieth 60 sixty第 70 seventieth 70 seventy第 80 eightieth 80 eighty第 90 ninetieth 90 ninety第 100 one hundredth 100th 100 hundred

一、 基数词写法表示数量多少的词是基数词，如one, two, three, four, five。1. 1-12分别由one到twelve 12个各不相同的词表示：例：one, two, three, four, five, six, seven, eight, nine，ten, eleven, twelve2. 13- 19均以后缀-teen结尾。例：thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen3. 20- 90的整十数词均以后缀-ty结尾。表示“几十几”时，个位和十 位之间需加连字符。例：twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety, twenty-one, thirty-two, forty-three4. 整百由1-9加hundred构成。例：one/a hundred，five hundred5. 整百数和整十数之间由and 连接，十位与个位之间要加连字符“-”。如果十位数为零，那就在百位和个位之间用and连接。例：one hundred and two,two hundred and forty- five注意：英语中没有“万”和“亿”这两个单位，只有thousand千；million百万；billion十亿。因此，一万是用10个千也就是 ten thousand来表示，一亿是用 one hundred million表示。二、 基数词用法1. 表示确切数目时，hundred，thousand 和 million 只能用单数，不能用复数；但表示不确定的数目时，要用复数并加of例：three hundred 三百 eight thousand 八千hundreds of 成百上千的 thousands of 成千上万的millions of 数百万的2. 基数词可以用来表示年龄例：He is ten years old. 他十岁了。in his twenties 在他二十几岁时3. 基数词可以用来表示时间例：6:30 six thirty / half past six 7:45 seven forty-five/a quarter to seven9:00 nine o’clock4. 基数词可以用来表示年代例：1990年读作nineteen ninety 2005读two thousand and five5. 基数词可以表示某事物的编号例：第三部分 Section 3 606房间 Room 606电话号码 4303639 TEL 43036396. 基数词可以用于某些数学算式例：2+1=3 Two and one is three.8-6=2 Eight minus six is two.三、 序数词构成表示顺序先后的数词叫序数词，如 first, fourth, twelfth, twenty-third1. 序数词的构成是在基数词后+ th，表示顺序的数词，前面一般要用定冠词 the。例：the fifth 第五 the twentieth 第二十2. 序数词第一、第二和第三为特殊变化，需要记忆例：first，second，third3. fifth第五，eighth第八，ninth第九和twelfth第二十在拼法上有变化。4. 辅音字母+y结尾的基数词变为序数词时，要把y变成ie再+th。例：twenty——twentieth第二十thirty——thirtieth 第三十forty- fortieth 第四十5. 基数词几十几变成序数词时，表示几十的数词不变，只把表示几的基数词变成序数词。例：twenty-one——twenty-first 第二十一forty-five→forty fifth 第四十五6. 第一百、第一千、第一百万、第十亿都是在基数词后直接+th构成。例：第一百hundredth 第一千 thousandth第一百万 millionth 第十亿 billionth7. 序数词的缩略形式是：阿拉伯数字加序数词的最后两个字母构成。例: 1st , 2nd, 3rd, 4th, 21st, 2nd, 40th等。四、 序数词用法1. 序数词前面一般要加“the”;例：The first student to come to school is usually Jim.2. 序数词前面有名词所有格、形容词性物主代词时，不再使用“the”;例：He is my first English teacher.例：Li Lei's second book is old.3. a /an+序数词+名词：序数词前也可以使用a或an, 表示的含义是“又一，再一”，常常有语言环境例：They have two children, and next year they will have a third child.4. 比赛或考试的名次前可省略 the例：He was second in the exam.5. the +序数词+最高级：序数词之后有形容词和副词时，用最高级例：The long river is the second longest river in China.He ran the third fastest in his class.6. 分数：母序子基 : 即分母用序数词，分子为基数词，分子大于1，分母+s例：三分之一 one third 三分之二 two thirds部分分数可以使用 half 和 quarter。例：四分之一 one fourth=a quarter四分之三 three fourths =three quarters二分之一 one second=a half7. 日期：5月5日读作：May (the) fifth, the fifth of May写作：May 5, May 5th, May the fifth, 5 May, 5th May8. 固定搭配中的序数词：例：起初 at first第一次 for the first time首先 first of all

1到 100的序数词和基数词第 1 first 1st 1 one第 2 second 2nd 2 two第 3 third 3rd 3 three第 4 fourth 4th . 4 four第 5 fifth 5th 5 five第 6 sixth 6th 6 six第 7 seventh 7th 7 seven第 8 eighth 8th 8 eight第 9 ninth 9th 9 nine第 10 tenth 10th 10 ten第 11 eleventh 11th 11 eleven第 12 twelfth 12th 12 twelve第 13 thirteenth 13th 13 thirteen第 14 fourteenth 14th 14 fourteen第 15 fifteenth 15th 15 fifteen第 16 sixteenth 16th 16 sixteen第 17 seventeenth 17th 17 seventeen第 18 eighteenth 18th 18 eighteen第 19 nineteenth 19th 19 nineteen第 20 twentieth 20th 20 twenty第21 twenty-first 21st 21 twenty-one第22 twenty-second 22nd 22 twenty-two第23 twenty-third 23nd 23 twenty-three第24 twenty-fourth 24th 24 twenty-four第25 twenty-fifth 25th 25 twenty-five第26 twenty-six 26 th 一下类推第 30 thirtieth 30th 30 thirty第 40 fortieth 40th 40 forty第 50 fiftieth 50 fifty第 60 sixtieth 60 sixty第 70 seventieth 70 seventy第 80 eightieth 80 eighty第 90 ninetieth 90 ninety第 100 one hundredth 100th 100 hundred

第1 first 1st 第2 second 2nd 第3 third 3rd 第4 fourth 4th 第5 fifth 5th 第6 sixth 6th 第7 seventh 7th 第8 eighth 8th 第9 ninth 9th 第10 tenth 10th 第11 eleventh 11th 第12 twelfth 12th 第13 thirteenth 13th 第14 fourteenth 14th 第15 fifteenth 15th 第16 sixteenth 16th 第17 seventeenth 17th 第18 eighteenth 18th 第19 nineteenth 19th 第20 twentieth 20th 第21 twenty-first 21st 第22 twenty-second 22nd 第23 twenty-third 23rd 第24 twenty-fourth 24th 第25 twenty-fifth 25th 第26 twenty-sixth 26th 第27 twenty-seventh 27th 第28 twenty-eighth 28th 第29 twenty-ninth 29th 第30 thirtieth 30th 第31 thirty-first 31st 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64 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72 seventy-second 第73 seventy-third 第74 seventy-fourth 第75 seventy-fifth 第76 seventy-sixth 第77 seventy-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 one hundredth 第101 one hundred first (one)hundred and first第一百零一 hundred and thirty-fourth第一百三十四 two-hundredth第二百 three-hundredth第三百 four-hundredth第四百 five-hundredth第五百 six-hundredth第六百 seven-hundredth第七百 eight-hundredth第八百 nine-hundredth第九百 (one)thousandth第一千 thousand and first第一千零一 two thousand and thirty-fourth 第二千零三十四 ten thousandth第一万 (one)millionth第一百万(美作:billionth) billionth第十亿(美作:trillionth) 基数词：1 one 2 two 3 three 4 four 5 five 6 six 7 seven 8 eight 9 nine 10 ten 11 eleven 12 twelve 13 thirteen 14 fourteen 15 fifteen 16 sixteen 17 seventeen 18 eighteen 19 nineteen 20 twenty 21 twenty-one 22 twenty-two 23 twenty-three 24 twenty-four 25 twenty-five 26 twenty-six 27 twenty-seven 28 twenty-eight 29 twenty-nine 30 thirty 31 thirty-one 32 thirty-two 33 thirty-three 34 thirty-four 35 thirty-five 36 thirty-six 37 thirty-seven 38 thirty-eight 39 thirty-nine 40 forty 41 forty-one 42 forty-two 43 forty-three 44 forty-four 45 forty-five 46 forty-six 47 forty-seven 48 forty-eight 49 forty-nine 50 fifty 51 fifty-one 52 fifty-two 53 fifty-three 54 fifty-four 55 fifty-five 56 fifty-six 57 fifty-seven 58 fifty-eight 59 fifty-nine 60 sixty 61 sixty-one 62 sixty-two 63 sixty-three 64 sixty-four 65 sixty-five 66 sixty-six 67 sixty-seven 68 sixty-eight 69 sixty-nine 70 seventy 71 seventy-one 72 seventy-two 73 seventy-three 74 seventy-four 75 seventy-five 76 seventy-six 77 seventy-seven 78 seventy-eight 79 seventy-nine 80 eighty 81 eighty-one 82 eighty-two 83 eighty-three 84 eighty-four 85 eighty-five 86 eighty-six 87 eighty-seven 88 eighty-eight 89 eighty-nine 90 ninety 91 ninety-one 92 ninety-two 93 ninety-three 94 ninety-four 95 ninety-five 96 ninety-six 97 ninety-seven 98 ninety-eight 99 ninety-nine 100 one hundred 看·我的比他的整齐而且序数词和基数词 都有,而他没有只有基数词让我得吧!我要累死啦!