小学英语数词专题讲解教案数词（一）(一)基数词（表示几）：表示数目多少的词叫基数词1、1—12的基数词是独立的单词，即：one，two，three，four，five，six，seven，eight，nine，ten，eleven，twelve。

2、13—19的基数词以-teen结尾，但13，15，18较特殊，13—thirteen 15—fifteen 18—eighteen。

3、20—90的整十位均以-ty结尾。

但20，30，40，50，80较特殊，20—twenty，30—thirty，40—forty ，50—fifty ，80—eighty。

4、十位数与个位数之间要加连字符号“-”，如：28 twenty-eight，96 ninety-six。

5、百位和十位(若无十位则和个位)之间加and，如：148—one hundred and forty-eight ，406—four hundred and six。

6、hundred(百)，thousand(千)，等前面即使有具体的数词，也不能在它们的后面加s。

如：600—six hundred，专项练习：一、请写出以下基数词。

12_________ 14__________ 18_________ 19__________ 21__________25_________ 37__________ 58_________ 88__________ 700_________二、根据句意或中文提示写出合适的英语数字。

（不能用阿拉伯数字）1. There are __________ days in a week.2. There are ________________ or ________________ days in a year.3. There are ________________ or __________________ days in February.4. There are ____________________days in August.5. There are __________ minutes in an hour.6. There are __________ months in a year.7. There are ______________________(数百个) students in the school.8. There are ______________________(数千个) people in the square.(二)序数词——由基数词转变而来，表示“这是第几个”，表示先后顺序的数词叫序数词1. 口诀巧记基数词变序数词：“一、二、三，特殊记，（第一first第二second第三third）八去“t”，九去“e”，（eight—eighth nine—ninth）“ve”要用“f”替，（five—fifth，twelve—twelfth）见y变成i和e，词尾加上th （twenty—twentieth，forty—fortieth）若是遇到几十几，只变个位就可以。

（twenty-five—twenty-fifth）2.其余情况均在基数词后加th3.序数词有时用缩写形式：First 缩写1st, twenty—second 缩写22th.专项练习：一、把下列基数词改成序数词。

one______two______three______nine______fourteen______twenty______thirty-five______ five______ eight______twelve______ forty-one二、根据句意和所给汉语完成句子。

1. Li Mei is always _______________(第一个)to come to school.2. Mary lives on _______________ (第十二)floor of that building.3. Today is my grandfather’s _______________ (第七十)birthday.4. The Changjiang River is ________ (第三) longest river in the world.5. Take _______________ (第二)turning on the left.6. Mary is _______________ (第四) in the race.数词（二）基本用法(一)基数词的基本用法用基数词来修饰可数名词时，一定别忘了用该名词的复数形式。

如：十八个男孩eighteen boys(二)序数词的基本用法1.序数词前面一般要加定冠词the(或物主代词)：Autumn is the third season in a year.2.如果数字较长，序数词总避免使用，而且读的方法也常常简化：第201房间：Room 201 第319页：page 3193. 在谈编了号的东西时，我们可以用基数词表示顺序：the first part------part one一、时间表达法1. 整点用基数词+o’clock, 如：1:00 ____________ 5:00 ___________2.按“钟点数+分钟数”的顺序，如：6:18 __________ 9:48______________3. 分钟不超过30（包含三十）时，用“分钟+past+钟点数”表达。

如：6:05______________ 7:15______________ 8:30________________4. 分钟数超过30时，用“分钟数+to+钟点数”表达。

其中“分钟数”为60减去原分钟数，“钟点数”为下一个钟点数。

如：3:50 _____________ 4:45_____________ 5:56_________________注意：在具体时刻前通常用at。

如：( at ) six or six o’clock专项练习：一、用英语写出下列时间。

____________ ____________ ____________ ____________二、按要求完成句子。

1. Linda does her homework at five fifty. (改为同义句)Linda does her homework at ________ ________ ________.2. He made clothes for two quarters. (改为同义句)He made clothes for ________ _______. / ________ ________ ________.3. What is the time? (改为同义句) ________ ________ is it?4. Mr Green goes to work at seven ten every day. (划线部分提问)________ ________ ________ Mr Green ________ to work every day?二、年、月、日表达法---What’s the date today? ---It’s May 3rd, 1987.---When is Children’s Day? ---It’s on June the first ( Jun 1st).---When is Teachers’Day? ---It’s on the tenth of September (Sept 10th).1.年代前用in. 每两位数读一个词，例如：1987年读作nineteen eighty-seven。

( in ) 1905 读作(in ) nineteen and five( in ) 1800 读作( in ) eighteen hundred2.月份开头第一个字母须大写，表示“在某月”时，月份前面用in。

( in ) January，( in ) March，( in ) December3. 日期用序数词(前需要加the)表示；“在某日”，前面用介词on.( on ) October the first4.某年某月某日如果年月日同时出现，先月后日，把年代放在最后，用逗号隔开，日要用序数词。

in Sep. 1954on Oct. 1, 1949(读作on October the first, nineteen forty-nine)专项练习：一、用英语写出下列日期。

_______________ ______________ _____________ _______________二、在句中填入适当的词。

1. --- ________ is Halloween? --- It’s ________ October.2. --- ________ the ________ today? It’s Jun 1st. --- It’s ________ ________.3. --- Is Women’s Day ________ ________ ________ ? --- Yes, it is.4. Mid-Autumn Festival is usually __________ __________ or __________.5. Hong Kong came back ________ 1997.三、一些数学加减的读法：3+8=11 three plus eight is eleven. 9-7=2 nine minus seven is two.课后作业一、英汉互译第六课_______________20个鸡蛋______________6月2日_______________on March 20,2004 __________seven thirty________ 96把椅子___________ No. 5 Middle School ________6：40 ________________ four times ___________ 二、把下列基数词改成序数词。

one______two______three______nine______fourteen______twenty______thirty-five______ five______ eight______twelve______ forty-one三、选择题1. We are going to learn _____ this term.A. book sixB. six bookC. the book sixD. Book Six2. Jenny was born (出生) __________.A. on July 10, 1987B. in July 10, 1987C. in 1987, July 10D. on 19873. Autumn is _____ season in a year.A. the fourthB. the thirdC. a thirdD. the threeth4. There are _______ days in a year.A. three hundreds sixty-fiveB. three hundreds and sixty-fiveC. three hundred sixty-fiveD. three hundred and sixty-five5. There are _______students in our school.A. eight hundreds and forty-sixB. eight hundred and forty-sixC. eight hundred forty-six6. My brother is in______.A. Three Class, One GradeB. Class Three, Grade OneC. Grade One, Class ThreeD. class three, grade one7. Please turn to ________ . Let’s read the text.A. Page twoB. the page twoC. second pageD. page second 8．Danny lives in __________．A．room 404 B．Room 404 C．404 room D．404 Room 9．—What’s the date today? —___________A．It’s Saturday B．It’s July C．It’s fine D．It’s July 1510．—What time do you get up every day?A．It’s seven o’clock B．Seven o’clock timeC．At seven D．On seven11.My home is about away from the school.A. three hundred metreB. three hundreds metresC. three hundred metresD. three hundred metre12.We are learning now.A.the twenty-first lessonB.Lesson Twenty-firstC.the 21th lessonD.Lesson 21 st13.This is her birthday, I think.A.twentyB.twentiethC.the twentiethD.the twenty’s14.September is Teachers’Day.A.the ten B the tenth C.the ten’s15. My grandmother is_____ old.A. seventiethB. seventy yearC. seventy yearsD. seventies16. Monday is the second day, and________.A. Tuesday is the fourthB. Thursday is fifthC. the second day is TuesdayD. the second day is Thursday17. There are ________months in a year. December is the ________month of the year.A. twelve; twelveB. twelve; twelfthC. twelfth; twelveD. twelve; twelveth18. What’s the date today? It is ________.A. FridayB. time to goC. cloudyD. June 4th19. What is five and eight?A. TwelveB. ThirteenC. FourteenD. Fifteen四、根据句意和有关常识，用英文数词填空。