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小学英语语法大全
数词
英语人教PEP
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小学英语语法大全
数词
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语法目录超链接
考点1：数词的定义
考点2：基数词
考点3：序数词
考点4：数词其他用法
数词小练笔
数词视频学习
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数词定义
知识点详解
数词定义：
表示数目的多少或先后顺序的词叫数词。数词分为基数词和序数词。表示数目的多少的词叫基数词；表示先后顺序的词叫序数词。数词也具有名词和形容词的双重身份。
数词的定义
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基数词
知识点详解
1—12的基数词是独立的单词。
one，two，three，four，five，six，seven，eight，nine，ten，eleven，twelve
13—19的基数词以-teen结尾。
thirteen，fourteen，fifteen，sixteen，seventeen，eighteen，nineteen
20—90的整十位均以-ty结尾。
twenty，thirty，forty，fifty，sixty，seventy，eighty，ninety
基数词的用法
知识点详解
十位数与个位数之间要加连字符“-”。28 ：twenty-eight 96 ：ninety-six
百位和个位（若无十位则和个位）之间加and。148 ：one hundred and forty-eight 406： four hundred and six
“基数词+单数名词+形容词” 构成合成形容词。
一个五岁的男孩 ：a five-year-old boy
一座七层高的建筑：a 7-storey-high building
基数词的用法
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序数词
知识点详解
序数词的用法
基数词变序数词口诀
一二三，特殊记，八去“t”，九去“e”，“ve”要用“f”替，
见“y”变成“ie”，词尾加上“th”，若是遇到几十几，只变个位就可以。
first second third
eight-eighth nine-ninth five-fifth twelve-twelfth
twenty-twentieth forty-fortieth
twenty-five—twenty-fifth
其余情况均在基数词后加“th”
six-sixth nineteen-nineteenth hundred-hundredth
thousand-thousandth
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数词其他用法
知识点详解
1.钟点的表示：小时、分钟、秒钟要用基数词
①“几点钟”用基数词加o'clock，通常o'clock可省略。
现在是5点钟—It's five (o'clock).
②“几点过几分，≤30分钟”用介词past。
7：05—five past seven 7：15—fifteen (a quarter) past seven
7：30—half past seven
③“差几分几点”用介词to。（整点加“1”，且用60减去目前的分钟数）
7：40—twenty to eight 7：45—fifteen (a quarter) to eight
④日常生活中的时间读法常常简化，直接按基数词的顺序来读。
7：05—seven o five 7：15—seven fifteen
知识点详解
2.“第几”的表示
①“第几”可用基数词或序数词表示，但形式不同。
Lesson Eight或the eighth lesson
Row Five或the fifth row
②电话号码用基数词表示
119—one one nine
知识点详解
3.年月日的表示
①年份用基数词，先读前两位，再读后两位。
1999—nineteen ninety-nine
1900—nineteen hundred
2000—two thousand
1905—nineteen o five
②“年”用基数词，“日”用序数词
1998年6月8日写作：June 8th, 1998
读作：June the eighth, nineteen ninety-eight 或 the eighth of June, nineteen ninety-eight
知识点详解
4.分数
分数表示方法其实很简单，分子用基数词，分母用序数词。当分子等于1时，分母就是序数同本身，当分子大于 1时，分母就要变成了序数词的复数。单 词之间可用连字符，也可不用。如果是带分数，用and连接两部分即可。 分母若是2,可以用half代替。 分母若是4,可以用quarter代替。
三分之二: two-thirds — 二分之一: one half 或 a half (不读做 one second)
三分之一：one third 或 a third 四分之一: one fourth 或者 a quarter
二又四分之三: two and three fourths 或者 two and three quarters
知识点详解
5.小数
小数点读作“point”，小数点前后的数字用基数词一一读出即可。小数大于1,后面的量词要加复数a
eg: 3.14： three point one four 0. 15： zero point one five
28. 23： two eight point two three 1. 05 米高：one point zero five meters
6.百分数
百分数用基数词加百分号表示，百分号读作：“percent"。
eg: 50%： fifty percent 35%： thirty-five percent
小练笔
一，写出下列基数词对应的序数词
one--- first two---second
three--- third four---fourth
five--- fifth six---sixth
seven---seventh eight---eighth
nine---ninth ten---tenth
twenty---twentieth thirty---thirtieth
forty--- fortieth fifty---fiftieth
sixty---sixtieth seventy---seventieth
eighty---eightieth ninety---ninetieth
小练笔
二，写出下列物品的数量或价格.
小练笔
三、写出下列数字的英语读法
1. 第 57 号 No. fifty-seventh
2. 8 月 1 日 August the first
3. 5 ： 50 ten to six
4. 204 号房间 Room 204
5. 第 7 单元 the seventh lesson
6. 9 ：30 half past nine
7. 90 美元 ninety dollars
8. 8 元 eight yuan
9. 12 :10 ten past twelve
小练笔
四、我是神算手。
1. seven+five=twelve 2.six+two=eight
3. thirteen—four= nine 4.ten—two = eight
5. three×four = twelve 6. sixty—fifteen=forty-five
7. eight× seven=fifty-six 8. fourteen÷seven = two
9. six × nine = fifty-four 10. six× four = twenty-four
小练笔
五，用正确的数词填空。
1. There are twenty-six letters in Englishalphabet （字母表）.
2. There are seven days in a week.
3. There are twenty-four hours in a day.
4. There are three hundred and sixty-fivedays in a year.
5. Thursday is the fifth day of a week.
6. There are thirty-one days in January.
7. There are twelve months in a year.
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数词视频学习1
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Homework
1.复习今日所学内容
2.完成语法精练
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Goodbye
谢谢
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数词语法精练
单项选择。
1.The tree is _________ tall.
A. fourteen foots B. fourteen feet
C. fourteen foot D. forty foot
2.Fifty plus _________ .
A. fourty is ninety B. forty is ninety
C. thirty is ninety D. fifty is ninety
3.There are_________ students in this school.
A. four hundred fifty-two
B. four hundreds fifty two
C. four hundred and fifty-two
D. four hundreds and fifty-two
4.My home is about _________ away from the school.
A. three hundred metre B. three hundreds metres
C. three hundred metres D. three hundred metre
5.December is _________ and last month in a year.
A.the twelveth B.twelve C.the twelfth D.twelfth
6. _________ of the teachers in the school are from colleges.
A.Three quarters B.Two-third
C.Two fifth D.Two-ninth
7.There were two world wars during _________ century.
A.the twenties B.the twentieth
C.twenties D.twentieth
8.In the forties, his father served in the New _________ Army(新四军)，while his mother worked in the Route Army(八路军).
A. Fourth; Eighth B.Four; Eighth
C.Fourth; eight D.Fourth; eighth
9.We are learning_________ now.
A.the twenty-first lesson B.Lesson Twenty-first
C.the 21 th lesson D.Lesson 21 st
10.He will stay here for _________ .
A.one and half month
B.one and a half month
C.one months and a half
D.one and a half months
11.—What’s the date today —It’s_________ .
A.nine B.Monday C.June 5 D.11:00
12.—Would you like to eat _________ apples
—No, thank you.
A.more two B.two more C.two another D.two else
13.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 two
14.—How often do you write to your parents abroad
—_________ .
A.Twice a month B.Second times a month
C.A second time a month D.second a time a month
15. 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 thirds
17.This is her _________ birthday, I think.
A.twenty B.twentieth C.the twentieth D.the twenty’s
18.September _________ is Teachers’Day.
A.the ten B.tenth C.the tenth D.the ten’s
19.There are_________ children in the country school.
A.two thousand five hundred and sixty
B.two thousands five hundred and sixty
C.two thousands five hundreds and sixty
D.two thousand five hundreds and sixty
20. _________ 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：
一、1～5BBCCC 6～10ABAAD
11～15CBAAB 16～20BBCAB
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