小学英语数词及专项训练

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, twelfth；

2、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“儿”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;若是儿十儿，前基后序别倒位.二、数词的表示方法:基数词序数词对照表1onefirst1th2twosecond2nd3threethird<3rd4fourfourth4th5fivefifth15th6sixsixth6th7sevenseventh7th8eighteighth8th9nineninth9

3、th10tententh10th11eleveneleventh/11th12twelvetwelfth12th13thirteenthirteenth13th14fourteenfourteenth14th15fifteenfifteenth15th16sixteensixteenth16th17seventeenseventeenth)17th18eighteeneighteenth18th19nineteennineteenth)19th20twentytwentieth20th21twenty-onetwenty-first21st22twenty-twotwenty-second22

4、nd23twenty-threetwenty-third23rd24twenty-fourtwenty-fourth24th25twenty-fivetwenty-fifth25th26twenty-sixtwenty-sixth26th27twenty-seventwenty-seventh27th28twenty-eighttwenty-eighth28th29twenty-ninetwenty-ninth)29th30thirtythirtieth30th40fortyfortieth40th50fiftyfiftieth50th60sixtysixtieth(60th70seventy

5、seventieth70th80eightyeightieth80th90ninetyninetieth90th100th100one hundredone hundredth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

6、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:M

7、ay 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T

8、housands 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o2 .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

9、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。读作 one point two five读作 naught point five six 或 zero point five six4 .百分数：白分号读作percent eg. 5%读作five percent

10、 五、算式表达法：1 .加法A+B=C f 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AX B=C f A times B is C. or A multiplied by B is C.4 .除法A-r B=C f A divided by B is C.六、需注意的问题：1 .数词+名词用“一”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乂有序数词。eg. the first three questionsthe

11、 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egone 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

12、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9、十二个月11、四分之一8、三点零五10、三十九美元12、五分之二二、单项选择tree is tall.A. fourteen footsB. fourteen feetC. fourteen foot plusA. fourty is ninetyC. thirty is ninetyD. forty footB. forty is ninetyD. fifty

13、is ninetyare students in this school.A. four hundred fifty-two B. four hundreds fifty twoC. four hundred and fifty-twoD. four hundreds and fifty-two home is about away from the school.A. three hundred metre B. three hundreds metresC. three hundred metres D. three hundred metre is and last month in a

14、 year.twelveth twelfth6.of the teachers in the school are from colleges.quartersfifthwere two world wars during century.twenties twentieththe forties, his father served in the New Army（新四军），while his mother worked in theRoute Army（八路军）.A. Fourth; Eighth ; Eighth;eight ; eighth are learning now.twent

15、y-first lesson Twenty-first21 th lesson 21 st will stay here for.and half month> and a half month months and a half and a half months11 .What' s the date todayIt' s. 5:0012 .Would you like to eat applesNo, thank you. two more another else said he would come back in. or two days or two day

16、s and two days day and two 14.How often do you write to your parents abroada month times a monthsecond time a month a time a month15 .people died in the traffic accidents in the world, of of thousands of thousand ofthe 1850s, about was covered by forest in the USA.third third thirdsis herbirthday, I think.twentieth twenty* sis Teachers' Day.ten tenth ten' sarechildren in the country school.thousand five hundred and six