1、小学英语数词及专项训练一、数词的分类：基数词和序数词。基数用于表示数量多少，而基数词用于表示次序，常在日期中出现。区别：基数词前面没有“the” ；序数词前一定要有“the” 。1、超过二十以上的两位数需要在个位和十位之间加上“-”。如：21 twenty-one2、用基数词来修饰可数名词时，一定别忘了它的复数形式。如：十八个男孩 eighteen boys3、用基数词修饰不可数名词时，如是复数，变它的量词为复数。如：两碗米饭 two bowls of rice4、序数词一般加“th”，特殊的有：first, second, third, fifth, eighth, ninth, twelf
2、th；二十及二十以外的整十：twentieth, thirtieth, fortieth “第几十几”：前面整十不变，后面“几”改为序数词。如：88 eighty-eighth巧记基数词和序数词：1,2,3,特殊记,加 th 从 4 起; 8 少 t,9 去 e,逢 5 逢 12ve 变 f;2090,y 要变 ie;若是几十几,前基后序别倒位.二、数词的表示方法：基数词序数词对照表1 one first 1th2 two second 2nd3 three third 3rd4 four fourth 4th5 five fifth 5th6 six sixth 6th7 seven sev
3、enth 7th8 eight eighth 8th9 nine ninth 9th10 ten tenth 10th11 eleven eleventh 11th12 twelve twelfth 12th13 thirteen thirteenth 13th14 fourteen fourteenth 14th15 fifteen fifteenth 15th16 sixteen sixteenth 16th17 seventeen seventeenth 17th18 eighteen eighteenth 18th19 nineteen nineteenth 19th20 twenty
4、 twentieth 20th21 twenty-one twenty-first 21st22 twenty-two twenty-second 22nd23 twenty-three twenty-third 23rd24 twenty-four twenty-fourth 24th25 twenty-five twenty-fifth 25th26 twenty-six twenty-sixth 26th27 twenty-seven twenty-seventh 27th28 twenty-eight twenty-eighth 28th29 twenty-nine twenty-ni
5、nth 29th30 thirty thirtieth 30th40 forty fortieth 40th50 fifty fiftieth 50th60 sixty sixtieth 60th70 seventy seventieth 70th80 eighty eightieth 80th90 ninety ninetieth 90th100 one hundred one hundredth 100th三、数词的用法1. 章节、页数的读法 第一章：the first chapter ; Chapter One 第二节：the second section ; Section Two 第
6、三课：the third lesson ; Lesson Three 第 463 页：page four six three 第 2564 页：page two five six four 或 twenty-five sixty-four 注意：如果页码的数字较长，通常用基数词。 2. 房间、门牌、电话号码的读法 第 305 房间：Room three o（零）five 长安街 76 号：seventy-six Changan Street 电话号码：204-2244：telephone number two o（零） four two two（double two） four four 十一
7、路公共汽车：Bus（No.） eleven 3. 年代、日期、时刻的读法 （1）年份是四位数字时，各分成二位来读， eg. 公元 1995 年：1995 （=nineteen ninety-five ） （2）日期使用一般的序数词来读取 eg. 5 月 10 日：May 10th（=May tenth） （3）时刻通常用基数词来读 eg. 8 点 45 分：8: 45（=eight forty-five） （4）年代表示法： eg. 二十世纪九十年代：1990s nineteen nineties 4. hundred, thousand, million 用法： hundred, thous
8、and, million 前面有具体数字，要用单数形式，但如果它们后面有 of，那它们要用复数形式，同时，前面不能再加具体的数目。 eg. two thousand 两千 thousands of 成千上万 hundreds of 成百上千 millions of 数以百万计 Thousands and thousands of people have visited the city. 成千上万的人参观了这座城市。 四、倍数、分数、小数、百分数的表示方法： 1. 倍数：time（s） This room is three times as large as that one. 这个房间有那个
9、房间三个大。 Three threes are nine. or Three times three is nine. 三三得九。 2. 分数： 分子用基数词表示，分母用序数词表示，分子为 2 以上时，分母（序数词）应变为复数。 三分之一，one third, a third； 五分之三，three fifths 数短语作主语时，谓语的数由 of 后面的名词来决定，名词为可数名词复数，则谓语用复数；名词为不可数名词，谓语用单数。 A third of the land is covered by forests. Two thirds of the workers are working ha
10、rd. 3. 小数： 小数点前的基数词与前面所讲的基数词读法完全相同，小数点后面则须将数字一一读出。 1.25 读作 one point two five 0.56 读作 naught point five six 或 zero point five six 4. 百分数： 百分号%读作 percent eg. 5% 读作 five percent 五、算式表达法： 1. 加法 A+B=C A plus B is C. or A and B is C. 2. 减法 AB=C A minus B is C. or B from A is C. 3. 乘法 AB=C A times B is C.
11、 or A multiplied by B is C. 4. 除法 AB=C A divided by B is C. 六、需注意的问题： 1. 数词名词用“连在一起作定语，后面名词不用复数。 eg. a four-year-old boy 2. 有些结构既有基数词又有序数词。 eg. the first three questions the last five minutes 3. 英语中有一些短语包含数词，不能从表面上理解它们的意义 eg. one and the only 唯一 be at one with 与 一致 be on all fours 匍匐；趴 Twos company,
12、 three is a crowd 二人成伴，三人不欢 one and the same 同一个；完全一样 for one 举个例子说 ten to one 十之八九 a thousand to one 十之八九 talk nineteen to the dozen 滔滔不绝 by twos and threes 三三两两 in ones and twos 三三两两 first and last 总共 first of all 首先 from the first 从一开始 练习：一、汉译英1、十二个家庭 2、在上午九点 3、在下午 4:30 4、在七月 5、第三个孩子 6、第一课 7、六月一日
13、 8、三点零五 9、十二个月 10、三十九美元 11、四分之一 12、五分之二 二、单项选择1.The tree is tall.A. fourteen foots B. fourteen feetC. fourteen foot D. forty foot2.Fifty plus .A. fourty is ninety B. forty is ninetyC. thirty is ninety D. fifty is ninety3.There are students in this school.A. four hundred fifty-twoB. four hundreds fif
14、ty twoC. four hundred and fifty-twoD. four hundreds and fifty-two4.My home is about away from the school.A. three hundred metre B. three hundreds metresC. three hundred metres D. three hundred metre5.December is and last month in a year.A.the twelveth B.twelve C.the twelfth D.twelfth6. of the teache
15、rs in the school are from colleges.A.Three quarters B.Two-thirdC.Two fifth D.Two-ninth7.There were two world wars during century.A.the twenties B.the twentiethC.twenties D.twentieth8.In the forties, his father served in the New Army(新四军)，while his mother worked in theRoute Army(八路军).A. Fourth; Eight
16、h B.Four; EighthC.Fourth; eight D.Fourth; eighth9.We are learning now.A.the twenty-first lesson B.Lesson Twenty-firstC.the 21 th lesson D.Lesson 21 st10.He will stay here for .A.one and half monthB.one and a half monthC.one months and a halfD.one and a half months11.Whats the date today?Its .A.nine
17、B.Monday C.June 5 D.11:0012.Would you like to eat apples?No, thank you.A.more two B.two more C.two another D.two else13.He said he would come back in .A.one or two days B.o or two days C.one and two days D.a day and two14.How often do you write to your parents abroad? .A.Twice a month B.Second times
18、 a month C.A second time a month D.second a time a month15. people died in the traffic accidents in the world.A.Thousand of B.Thousands of C.Ten thousands of D.Ten thousand of 16.In the 1850s, about was covered by forest in the USA.A.third B.a third C.the third D.a thirds17.This is her birthday, I t
19、hink.A.twenty B.twentieth C.the twentieth D.the twentys18.September is TeachersDay.A.the ten B.tenth C.the tenth D.the tens19.There are children in the country school.A.two thousand five hundred and sixtyB.two thousands five hundred and sixtyC.two thousands five hundreds and sixtyD.two thousand five hundreds and sixty20. of the soldiers is about two thousand.A. A number B. The number of C. A great number D. The biggest numbers of答案：二、15BBCCC 610ABAAD1115CBAAB 1620BBCAB
