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, twelfth；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;20~90,y要变ie;若是几十几,前基后序别倒位.二、数词的表示方法：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 Chang'an Street电话号码：204-2244：telephone number two o（零）four two two（double two）four four 十一路公共汽车：Bus（No.）eleven3. 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：1990's nineteen nineties4. hundred, thousand, million用法：hundred, thousand, 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 hard.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 five0.56 读作naught point five six或zero point five six4. 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A－B=C →A minus B is C. or B from A is C.3. 乘法A×B=C → A times B is C. or A multiplied by B is C.4. 除法A÷B=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 boy2. 有些结构既有基数词又有序数词。
eg. the first three questionsthe last five minutes3. 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Two's company, 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4:304、在七月5、第三个孩子6、第一课7、六月一日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 footsB. fourteen feetC. fourteen footD. forty foot2.Fifty plus .A. fourty is ninetyB. forty is ninetyC. thirty is ninetyD. fifty is ninety3.There are students in this school.A. four hundred fifty-twoB. four hundreds fifty twoC. four hundred and fifty-twoD. four hundreds and fifty-two4.My home is about away from the school.A. three hundred metreB. three hundreds metresC. three hundred metresD. three hundred metre5.December is and last month in a year.A.the twelvethB.twelveC.the twelfthD.twelfth6. of the teachers in the school are from colleges.A.Three quartersB.Two-thirdC.Two fifthD.Two-ninth7.There were two world wars during century.A.the twentiesB.the twentiethC.twentiesD.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; EighthB.Four; EighthC.Fourth; eightD.Fourth; eighth9.We are learning now.A.the twenty-first lessonB.Lesson Twenty-firstC.the 21 th lessonD.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.—What’s the date today?—It’s .A.nineB.MondayC.June 5D.11:0012.—Would you like to eat apples?—No, thank you.A.more twoB.two moreC.two anotherD.two else13.He said he would come back in .A.one or two daysB.o or two daysC.one and two daysD.a day and two14.—How often do you write to your parents abroad?— .A.Twice a monthB.Second times a monthC.A second time a monthD.second a time a month15. people died in the traffic accidents in the world.A.Thousand ofB.Thousands ofC.Ten thousands ofD.Ten thousand of16.In the 1850s, about was covered by forest in the USA.A.thirdB.a thirdC.the thirdD.a thirds17.This is her birthday, I think.A.twentyB.twentiethC.the twentiethD.the twenty’s18.September is Teachers’Day.A.the tenB.tenthC.the tenthD.the ten’s19.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 numberB. The number ofC. A great numberD. The biggest numbers of答案：二、1～5BBCCC 6～10ABAAD11～15CBAAB 16～20BBCAB。