基数词和序数词知识点整理

基数词和序数词知识点整理
基数词和序数词知识点整理

(一)基数词在英语中表示数目的词称为基数词。

1.基数词的构成

(1)1-20 one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen,twenty

(2)21-99 先说“几十”,再说“几”,中间加连字符。23→twenty-three,34→thirty-four,45→forty—five,56→fifty-six,67→sixty-seven,78→seventy-eight,89→eighty-nine,91→ninety-one

(3)101—999先说“几百”,再加and,再加末两位数或末位数;586→five hundred and eighty-six,803→eight hundred and three

(4)l,000以上,先从右往左数,每三位数加一个“,”,第一个“,”前为thousand.第二个“,”前为million,第三个“,”前为billion(美式)或thousand ,million(英式),然后一节一节地表示。

1,001→one thousand and one 9,785→nine thousand,seven hundred and eighty-five 18,423→eighteen thousand,four hundred and twenty-three

6,260,309→six million two hundred and sixty thousand three hundred and nine

750,000,000,000→seven hundred and fifty,billion(美式)seven hundred and fifty thousand million(英式)

(二)序数词在英语中表示顺序、次序的词称为序数词。

1.序数词的构成

(1)一般在基数词后加th eg.four→fourth,thirteen→thirteenth

(2)不规则变化one→first,two→second,three→third,five→fifth,eight→eighth,nine →ninth,twelve——twelfth

(3)以y结尾的十位整数,变y为ie再加th twenty→twentieth,forty→fortieth,ninety →ninetieth

(4)从二十一后的“几十几”直至“几百几十几”或“几千几百几十几”只将个位的基数词变为序数词。twenty-first,two hundred and forty-fifth

2.序数词的用法

(1)序数词作定语时,一般要与定冠词或物主代词连用。Tom is their second son. He is the first one to come here.

(2)序数词有时可与不定冠词连用,表示数量上“又—”,“再一”eg:He tried a second time.他又试了—次。Shall l ask him a third time?还要我再问他—次吗?(我已问了他两次)(3)序数词的缩写形式为:阿拉伯数字加上词的末尾两个字母。1st 2nd,3rd,4th,20th,21st,22nd,23rd

(4)表示年、月、日时,年用基数词,日用序数词。2005年8月15日:(英)15,8,2005=15th,August,2005;(美)8,15,2005=August 15th,2005

(三)基数词和序数词都可以用来给数字编号。No.1(1号),No.3bus(3路公共汽车),Room 103,(103号房间)The first lesson=Lesson Two(第二课)

(四)分数词的表达:分子用基数词,分母用序数词,分子大于1时,分母加s 1/3-one third;2/5-two fifths

(五)数学运算的表达:eg.3+5=8 Three plus/and five is eight. 9-2=7 Nine minus two is seven. 6x5=30 Five times six is thirty 8÷2=4 Eight divided by two is four.

小学六年级英语基数词与序数词对照表

基数词 序数词缩写基数词 序数词缩写 one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth thirteenth fourteenth fifteenth 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty thirty-one seventeenth eighteenth nineteenth twentieth twenty-first twenty-second twenty-third twenty-fourth twenty-fifth twenty-sixth twenty-seventh twenty-eighth twenty-ninth thirtieth thirty-first 17th 18th 19th 20th 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 31st sixteen sixteenth16th 基数词 one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen 序数词 first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth thirteenth fourteenth fifteenth 缩写 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 基数词 seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty thirty-one 序数词 seventeenth eighteenth nineteenth twentieth twenty-first twenty-second twenty-third twenty-fourth twenty-fifth twenty-sixth twenty-seventh twenty-eighth twenty-ninth thirtieth thirty-first 缩写 17th 18th 19th 20th 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 31st

基数词及其变序数词口诀

基数词口诀: 英语数词不难记,找出规则就容易。 一至十二词各异,一个一个单独记。 后面加teen变十几,thirteen, fifteen看仔细。 eighteen只有一个t,两个音节念清晰。 二十至九十后加ty,twenty不同重点记。 forty去掉字母u,thirty, fifty更出奇。 十位数后个位数,表示数值几十几. 按序排列不费力,连字符号莫丢弃。 巧学妙计加努力,hundred是你的好成绩 数词的分类 一. 基数词 表示数目的词称为基数词。其形式如下: 1.1——10 one,two,three,four,five,six,seven,eight,nine,ten. 2.11——19(十几都以-teen结尾) a) eleven,twelve,thirteen,fifteen,eighteen b) fourteen,sixteen,seventeen,nineteen(都是由其个位数形式后添加后缀-teen构成) 3.21——99(整几十都以-ty结尾) a) twenty,thirty, forty,fifty,eighty b) sixty,seventy,ninety(都是其个位数形式后添加后缀-ty构成) c) 表示几十几时,在几十和个位基数词形式之间添加连字符“-” 21 twenty-one 76 seventy-six 4.百位数 个数基数词形式加“hundred ['h?ndr?d]”,表示几百,在几十几与百位间加上and. 101 a hundred and one 320 three hundred and twenty 648 six hundred and forty-eight E.千位数以上 从数字的右端向左端数起,每三位数加一个逗号“,”。从右开始,第一个“,”前的数字后添加thousand ['θauz?nd] ,第二个“,”前面的数字后添加million['milj?n] ,第三个“,”前的数字后添加billion ['bilj?n] 。然后一节一节分别表示,两个逗号之间最大的数为百位数形式。 2,648 two thousand six hundred and forty-eight 16,250,064 sixteen million two hundred and fifty thousand sixty-four 二.基数词变序数词口诀 基变序,有规律, 词尾加上th,(fourth,sixth)

英语基数词和序数词专项练习

英语基数词和序数词专项练习 一.基数词。 1. 默写数字1-12 _____________________________________________________________________ _____________________________________________________________________ 2. 默写数字13-19 _____________________________________________________________________ _____________________________________________________________________ 3. 默写整十。 20__________________ 30___________________ 40___________________ 50___________________ 60___________________ 70___________________ 80___________________ 90___________________ 100___________________ 三、写出下列数字。 21___________________ 32___________________ 43___________________ 54___________________ 65___________________ 76___________________ 87___________________ 98___________________ 101__________________ 210___________________________ 375__________________________________ 四、把下列基数词改成序数词。 one two three five nine eight fourteen twenty thirty-five seventy-two 五、写出下列序数词的缩写形式或完整形式。 first- nineteenth-29th- twenty-eighth-eleventh-75th- fifty-five-second -31st- 3rd-62nd-22nd- 12th-20th-98th-

基数词和序数词

基数词和序数词 一.表示数目多少的词叫基数词: 二.表示顺序的数次叫序数词: 注意: Hundred thousand million 1.其前有具体数字时,用单数: There are thousand students in this in this school. 这所学校大约有2000名学生。 2.前无数词,模糊数字+s+of短语: Hundreds of people come to see our ’s so great. 成百的人来看我们的戏剧,它太成功了。 3.基数词变序数词口诀: 基变序,很容易,结尾加上th。 一二三特殊记,结尾各是t,d,d。 八去t,九去e,f来把ve替,

y改为ie,结尾仍有th。若是遇到几十几,只变个位就可以。 三.基数词的用法: 1.基数词在句中可用作主语、宾语、表语、定语和同位语。 主语:Four of them went to the factory. 他们四个人去了工厂。 宾语: I want two. 我要两个。 定语: There thirty classrooms in our school. 我们学校有30个教室。 表语: My classmate is eighteen. 我的同学18岁。 He is only three,and he can’t dress himself. 他只有三岁,不会穿衣服。 同位语: We three will go there together. 我们3个一起去。 注意:1以上的基数词作定语时,它所修饰的名词要用复数形式: The road is 16 meters in width. 这条路十六米宽。 18 American students came to our school yesterday. 昨天有18个美国学生来到我校。 四.序数词的用法: 1.序数词可以在句子中当主语、宾语、定语、表语。 主语: The second is what I really need. 第二个是是我真正需要的。 宾语: He chose the second. 他选了第二个。 定语: We are carry out the first plan. 我们将执行第一个计划。 表语: She is the second in our class. 在我们班她是第二名。 注意: 1.The nine students are in Class Five.这九个学生都是五班的。 2.The ninth student is in Class Five.第九个学生是五班的。 3.序数词前用不定冠词的常见情况: ①序数词前加“a”表“再一次”。 May I have a second try我能再试一次吗 Now tell me why you took a second arrow. 告诉我,为什么你手里拿着另一支箭 ②在名次中排“第几” You should try to get a first or a second in the examination.你应力争在这次考试中得个第一、二名。 ③表示任何一个“第几者”。 We don’t allow a third to have a hand in this matter. 我们不允许第三者插手此事。 ④当“分数词”用表示“几分之几”。 A third of the students failed in the exam. 三分之一的学生在这次考试中没及格。五.时间表达法: 1.顺序法 seven five 7:05 seven fifty-two 7:52 seven thirty 7:30 2.先分钟后时刻法:整点用o’clock,半点用half.>30用to,<30用和45分钟用quarter 15分钟) 8 o’clock 八点 half past eight . 上午八点半 a quarter to twelve 差一刻12点 twenty-nine to eight 差29分八点

基数词与序数词对照表

基数词与序数词对照表 1 one 一;1st first 第一 2 two 二;2nd second 第二 3 three 十;3rd third 第三 4 four 四;4th fourth 第四 5 five 五;5th fifth 第五 6 six 六;6th sixth 第六 7 seven 七;7th seventh 第七 8 eight 八;8th eighth 第八 9 nine 九;9th ninth 第九 10 ten 十;10th tenth 第十 11 eleven 十一;11th eleventh 第十一 12 twelve 十二;12th twelfth 第十二(twelve变ve为f加th) 13 therteen 十三;13th thirteenth 第十三 14 fourteen 十四;14th fourteenth 第十四 15 fifteen 十五;15th fifteenth 第十五 16 sixteen 十六;16th sixteenth 第十六 17 seventeen 十七;17th seventeen 第十七 18 eighteen 十八;18th eighteenth 第十八 19 nineteen 十九;19th nineteenth 第十九 20 twenty 二十;20th twentieth 第二十(twenty变y为ie加th) 21 twenty-one 二十一;21st twenty-first 第二十一 23 twenty-three 二十三;23rd twenty-third 第二十三 25 twenty-five 二十五;25th twenty-fifth 第二十五 27 twenty-seven 二十七;27th twenty-seventh 第二十七 29 twenty-nine 二十九;29th twenty-ninth 第二十九 30 thirty 三十;30th thirtieth 第三十 32 thirty-two 三十二;32nd thirty-second 第三十二 34 thirty-four 三十四;34th thirty-fourth 第三十四 36 thirty-six 三十六;36th thirty-sixth 第三十六 38 thirty-eight 三十八;38th thirty-eighth 第三十八40 forty 四十;40th fortieth 第四十 50 fifty 五十;50th fiftieth 第五十 60 sixty 六十;60th sixtieth 第六十 70 seventy 七十;70th seventieth 第七十 80 eighty 八十;80th eightieth 第八十 90 ninety 九十;90th ninetieth 第九十 100 one hundred 一百; 100th (one)hundredth 第一百 101 one hundred and one 一百零一; 321 three hundred and twenty-one 三百二十一; 999 nine hundred and ninety-nine 九百九十九; 1,000 one thousand 一千; 1,001 one thousand and one 一千零一; 4,321 four thousand hundred and twenty-one 四千三百二十一; 10,000 ten thousand 一万; 54,321 fifty-four thousand three hundred and twenty-one 五万四千三百二十一; 100,000 one hundred thousand 十万 654,321 six hundred and fifty-four thousand three hundred and twenty-one 六十五万四千三百二十一 1,000,000 one million 一百万 7,654,321 seven million six hundred and fifty-four thousand three hundred and twenty-one 七百六十五万四千三百二十一 10,000,000 ten million 一千万 87,654,321 eighty-seven million six hundred and fifty-four thousand three hundred and twenty-one 八千七百六十五万四千三百二十一100,000,000 one hundred millon 一亿 987,654,321 nine hundred and eighty-seven million six hundred and fifty-four thousand three hundred and twenty-one 九亿八千七百六十五 万四千三百二十一 1,000,000,000 one billion 十亿

小学基数词和序数词的练习题

一、用所给词的适当形式填空 1. That is not___kit e.That kite is ver y small, but ___i s ver y bi g.( I ) 2. The dres s i s ___ . Give it to ___. ( she ) 3. Is t his ___wat ch?(you) No, it's not ___. ( I ) 4. ___ i s m y brother. ___ nam e is J ack. Look! Those st amps are ___.( h e ) 5. ___dress es are red. (we)What colour are ___? ( you) 6. Here are m an y dolls,whi ch one i s ___? ( she ) 7. I can find m y t o y,but where is___(you)? 8. Show___yo ur kit e,OK?(the y) 9. I have a beautiful cat.___ nam e is M imi. These cakes are ___(it) 10. Are these ___ti ckets?No,___are not t heirs. ___ aren't here.( the y ) 11. Shall ___ha ve a look at that cl ass room?That is ___ classroom. ( we ) 二、选出括号中正确的词,在正确的词上打勾。 1. This i s(m y /I)m other. 2. Ni ce t o meet (your / you)

序数词与基数词练习题

序数词与基数词练习题 ①写出下列词的序数词形式。 1.one 3. six 5. nine ②写出下列单词的基数词形式。 ③根据句子意思填空。 1.Children '(I儿童节)is on the of June (六月). 2.There are mon ths (月)in a year(年). 3.Teacher ' s教师节)is on the of September (九月) 4.Three plus(加口)six is . ④选择填空。 ()1. My cousin ' s birthday in on the of October. A.three B. first C. the sec ond ()2. What date is it today It ' s of April. A.twelfth B. the 12th C. 12th ()3. There are ______ days in a week. A. the seve n B. seve nth C. the seve nth D. seve n ()is the day of a week. A. one B. first C. sec ond ()5. Twen ty-eight minus(减)six is .

A. the twe nty- sec ond B. twe nty-two C. twe nty- sec ond

()6. Four plus 加)is twelve. A. seven B. eight C. nine ( )7. Please turn to __ . A. Page 11 B. the 11st page C. page 11 D. page the 11 th ( )8. At night we can see _ stars in the sky. A. thousands and thousands of B. thousand and thousands of C. a thousand and thousands D. thousand and thousand ( )9. There are some __________________ in our classroom. A. hundred of books B. the hundreds of books C. hundreds of books D. hundred of book ( )10. I have been to the village _ . A. a hundred time B. hundred times C. hundreds of times D. hundred of times )11. There are _ students in our school. A. four —hundred and forty —five C. four hundreds and forty —five )12. The teacher told me to go over B. the three first C. three the first D. the first three ( )13. May is _ of a year. A. the fifth months B. the fifth month C. the five months D. the five month ( )14. We live in __ . A. the twenty-first century C. century twenty-one II. Complete the sentences according to the numerals: 用( past 或 to 的句型) 1. What time is it (8:30) B. four hundred and forty —five D. four hundred and forty five lessons. A. thirst B. the century twenty-one D. the century twenty-

最新基数词序数词练习题(含答案)

基数词序数词练习题I.选择题。 ( )1. Please turn to ______. A. Page 11 B. the 11st page C. page 11 D. page the 11 th ( )2. I have been to the village ________. A. a hundred time B. hundred times C. hundreds of times D. hundred of times ( )3. There are ____ students in our school. A. four—hundred and forty—five B. four hundred and forty—five C. four hundreds and forty—five D. four hundred and forty five ( )4. We live in ______. A. the twenty-first century B. the century twenty-one C. century twenty-one D. the century twenty-first ( )5. He said he was going to be free in _______. A. one and a half hour B. one hour and half C. one and half hours D. an hour and a half ( )6.-How many English books are there on the table? -There is only _____English book on it. A. a B. an C. one D. the ( )7. The road is _________. A. two thousand and five hundred metres long B. two thousands metres long C. long one thousand five hundred metre D. a thousand and five hundreds metres long ( )8. He joined the army on ______ of May 1980. A. 1 st B. the 1 C. first D. the first ( )9. March the _____ is Women’s Day. A. eighth B. ninth C. tenth D. eight ( )10. September is the _____month of the year. A. nineth B. ninth C. nine D. the twelveth ( )11. December the ____ is Christmas. A. twenty-five B. twenty-fifth C. twentieth-five D. twenty-five ( )12. Another way of saying Lesson 12 is __________. A. Lesson ten-two B. Lesson Ten-second C. the Twelfth Lesson D. Twelfth lesson II. Translation. 1. 电话号码8485308 _____________________ 2. 第五册 ___________________ 3. 成千上万的儿童 _____________________ 4. 一个半小时 _______________________ 5. 45路公共汽车 ______________________ 6. 三分之一 _______________________ 7. 五分之四 ________________________ 8. 第501房间 _____________________ 9. 第二层 _________________________ 10. 一次/二次/三次 ______________________ 11.在某人60岁的时候 _____________________ 12. 在二十世纪三十年代 ____________________ 13.It’s half past eight. ________________ 14. It’s a quarter to nine.___________________ 15. It’s January twenty-sixth eighteen ninety-three. _____________________________________ 16. 他每天早上总是第一个到校。_____________________________________________________________ 17. 第三天早上玛丽没有迟到。_______________________________________________________________

五年级英语:基数词变序数词口诀

基数词变序数词口诀 英语中基数词变为序数词时,一般在基数词后加词尾-th,但有几个词变化特殊,只要记住下面这个口诀,这些问题即可迎刃而解。 一、二、三,单独记; 八去t,九除e,ve要用f替, 整十基数变序数,先把ty变成tie; 要是遇到两位数,十位基数个位序,th最后加上去。 解析口诀:one→first,two→second,three→third这三个词变化特殊,要单独记; eight→eighth,nine→ninth,八去t,九去e后再加-th;five→fifth,twelve→twelfth,五和十二把ve换成f再加-th;twenty→twentieth,thirty→thirtieth... 整十先把词尾y改为ie再加-th。 两位数时则十位数用基数词,个位数用序数词, 如:twenty-first。 基变序有规律词尾加上th 123 特殊记八去t 九去e ve要用f替 见y变成t和e 要是遇到几十几

只变个位就可以 基变序有规律,一二三单独记,th结尾从四起, 8去t ,9去e,5和12变ve(为f), 整十前变y为ie(th)跟上去,几十几个变序数目再大同一个理 数词的分类 一. 基数词 表示数目的词称为基数词。其形式如下: 1.1——10 one,two,three,four,five,six,seven,eight,nine,ten. 2.11——19(十几都以-teen结尾) a) eleven,twelve,thirteen,fifteen,eighteen b) fourteen,sixteen,seventeen,nineteen(都是由其个位数形式后添加后缀-teen构成) 3.21——99(整几十都以-ty结尾) a) twenty,thirty, forty,fifty,eighty b) sixty,seventy,ninety(都是其个位数形式后添加后缀-ty 构成) c) 表示几十几时,在几十和个位基数词形式之间添加连字符“-” 21 twenty-one 76 seventy-six 4.百位数

英语中基数词与序数词的区别和用法

英语中基数词与序数词的区别和用法 一、数词的分类 1. 基数词 表示数目的词称为基数词。其形式如下: A.从1——10 one,two,three,four,five,six,seven,eight,nine,ten. B.从 11——19 eleven,twelve, thirteen, fourteen, fifteen, sixteen, seventeen,eighteen, nineteen. 这里除 eleven, twelve, thirteen, fifteen, eighteen为特殊形式外,fourteen,sixteen,seventeen,nineteen都是由其个位数形式后添加后缀-teen 构成。 C.从 21——99 整数几十中除twenty,thirty, forty,fifty,eighty为特殊形式外,sixty,seventy,ninety都是其个位数形式后添加后缀-ty构成。表示几十几时,在几十和个位基数词形式之间添加连字符“-” 21 twenty-one 76 seventy-six D.百位数 个数基数词形式加“hundred”,表示几百,在几十几与百位间加上and. 101 a hundred and one 320 three hundred and twenty 648 six hundred and forty-eight E.千位数以上 从数字的右端向左端数起,每三位数加一个逗号“,”。从右开始,第一个“,”前的数字后添加 thousand,第二个“,”前面的数字后添加 million,第三个“,”前的数字后添加 billion。然后一节一节分别表示,两个逗号之间最大的数为百位数形式。 2,648 two thousand six hundred and forty-eight 16,250,064 sixteen million two hundred and fifty thousand sixty-four 5,237,166,234 five billion,two hundred and thirty-seven million,one hundred and sixty-six thousand,two hundred and thirty-four F.基数词在表示确切的数字时,不能使用百、千、百万、十亿的复数形式;但是,当基数词表示不确切数字,如成百、成千上万,三三两两时,基数词则以复数形式出现。 There are hundreds of people in the hall. 大厅里有数以百计的人。 Thousands and thousands of people come to visit the Museum of Qin Terra-Cotta Warriors and Horses every day. 每天有成千上万的人来参观秦兵马涌博物馆。 They went to the theatre in twos and threes. 他们三三两两地来到了剧院。 G.表示人的不确切岁数或年代,用几十的复数形式表示。

(完整word版)基数词序数词的讲解与练习

基数词序数词的讲解 1. 基数词 表示数目的词称为基数词。其形式如下: A.从1——10 one,two,three,four,five,six,seven,eight,nine,ten. B.从11——19 eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen. 这里除eleven,twelve,thirteen,fifteen,eighteen为特殊形式外,fourteen,sixteen,seventeen,nineteen 都是由其个位数形式后添加后缀-teen构成。 C.从21——99 整数几十中除twenty,thirty, forty,fifty,eighty为特殊形式外,sixty,seventy,ninety都是其个位数形式后添加后缀-ty构成。 表示几十几时,在几十和个位基数词形式之间添加连字符“-” 21 twenty-one 76 seventy-six D.百位数 个数基数词形式加“hundred”,表示几百,在几十几与百位间加上and.101 a hundred and one 320 three hundred and twenty 648 six hundred and forty-eight

E.千位数以上 从数字的右端向左端数起,每三位数加一个逗号“,”。从右开始,第一个“,”前的数字后添加thousand,第二个“,” 前面的数字后添加million,第三个“,”前的数字后添加billion。 2,648 two thousand six hundred and forty-eight 16,250,064 sixteen million two hundred and fifty thousand and sixty-four 5,237,166,234 five billion two hundred and thirty-seven million one hundred and sixty-six thousand two hundred and thirty-four F.基数词在表示确切的数字时,不能使用百、千、百万、十亿的复数形式;但是,当基数词表示不确切数字,如成百、成千上万,三三两两时,基数词则以复数形式出现。 There are hundreds of people in the hall. Thousands of people come to visit the Museum of Qin Terra-Cotta Warriors and Horses every day. 每天有成千上万的人来参观秦兵马涌博物馆。 H.基数词的句法功能 基数词在句中可作主语、宾语、定语、表语、同位语。 The two happily opened the box.(作主语) I need three altogether.(作宾语) Four students are playing volleyball outside.(作定语) We are sixteen.(作表语) They three tried to finish the task before sunset.(作同位语)

(完整版)基数词和序数词专项练习题

基数词和序数词专项练习题 一、知识归纳 ①基数词变序数词的规律: 口诀:基变序,有规律。 一、二、三、特殊记,词尾字母t,d,d. (如:first, second, third)。 八减t,九去e,(如:eighth, ninth), f来把ve替。(如:twelfth). 单词ty作结尾,ty变成tie(如:twentieth). 若是碰到几十几,只变个位就可以。(如:twenty-first) ②1-100的序数词: 1st--first;2nd--second;3rd--third;4th--fourth;5th--fifth;6th--sixth;7th--seventh;8th--eighth;9th--ninth;10th--tenth;11th--eleventh; 12th--twelfth;20th--twentieth;21st--twenty-first;22nd--twenty-second;29th--twenty-ninth;30th--thirtieth;31st--thirty-first;40th--fortieth;50th--fiftieth;60th--sixtieth;70th--seventieth;80th--eightieth; 90th--ninetieth;100th--hundredth 二、巩固练习: ①写出下列词的序数词形式。 1. one 2.two 3. six 4.five 5. nine 6.twelve 7.eight 8.twenty -one ②写出下列单词的基数词形式。 1.third 2.fourth 3.tenth 4.twentiet h 5.nineteenth 6.thirty-first _ ③根据句子意思填空。 1. Children’s Day(儿童节) is on the of June(六月). 2. There are months(月)in a year(年).

基数词和序数词语法讲解及练习题

基数词:表数量序数词:表顺序 基变序,有规律。字母结尾t,d,d. 其他后边th. th中有例外:八减t,就减e,f代ve,ty变tie 基数词和序数词的练习题 一、写出下列词的序数词 1. one 2.two 3. six 4.five 5.nine 6.twelve 7.eight 8.twenty-one 二、写出下列单词的基数词 1.third 2.fourth 3.tenth 4.twentieth 5.nineteenth 6.thirty-first _ 三、根据句子意思填空。 1. Children’s Day(儿童节) is on the of June(六月). 2. There are months(月)in a year(年). 3. Teacher’s Day(教师节) is on the of September(九月). 4. Three plus(加) six is . 四、选择填空。 ( )1. My cousin’s birthday in on the of October. A. three B. first C. the second ( )2. What date is it today? It’s of April. A. twelfth B. the 12th C. 12th ( )3. There are days in a week. A. the seven B. seventh C. the seventh D. seven ( )4.Sunday is the day of a week. A. one B. first C. second ( )5. Twenty-eight minus(减)six is . A. the twenty- second B. twenty-two C. twenty- second ( )6. Four plus(加) is twelve. A. seven B. eight C. nine

基数词变序数词有口诀

基数词变序数词有口诀:英语中基数词变为序数词时,一般在基数词后加词尾-th,但有几个词变化特殊,只要记住下面这个口诀,这些问题即可迎刃而解。 一、二、三,单独记;八去t,九除e,ve要用f替,整十基数变序数,先把ty变成tie;要是遇到两位数,十位基数个位序,th最后加上去。 解析口诀:one→first,two→second,three→third这三个词变化特殊,要单独记;eight→eighth,nine→ninth,八去t,九去e后再加-th;five→fifth,tw elve→twelfth,五、十二把ve换成f再加-th;twenty→twentieth,thirty→thirtieth... 整十先把词尾y改为ie再加-th。两位数时则十位数用基数词,个位数用序数词,如:twenty-first。 一、英语的词类 句子要由词组成, 英语词类有十种: 句中成分用实词, 名、代、动、副、数、形容; 冠、介、连词和感叹, 虚词附加或沟通。 词类功能掌握了, 造句之时好运用。 二、语序歌 主、谓、宾、表同汉语, 定语有同也有异。 状语位置最特殊, 不能全和汉语比。 三、肯定句变一般疑问句 have和be提句首, 其它助词比开头。 时间、人称由do变, 动词只把原形留。 谓语助词有几个, 第一助词提句首。 四、肯定旬变否定句 否定谓语加not, 放在be和have后。

其它要加助词do, do的后边加not, 时间、人称由do变, 动词原形总保留。 谓语若是助词多, not紧跟第一个。 五、名词的所有格 名词只变数, 不分主宾格。 人和动物类, 可变所有格。 撇(’)后加s, 相当汉语“的”。 时间、距离等, 也变所有格。 六、名词变复数 单数变为复数式, 加上“s”统言之。 下列结尾名词后, 要加“s”先加“e”: 发音[F][tF][s]和[z], 或是辅音加“o”时。 有些名词变复数, 词尾变化要注意: “y”前字母是辅音, 一律变“y”为“ie”; 遇到“f/fe”, 有时需要变“ve”。 少数名词不规则, 特别情况靠硬记。 七、时间名词前所用介词的速记歌 年月周前要用in, 日子前面却不行。 遇到几号要用on, 上午下午又是in。 要说某日上下午, 用on换in才能行。 午夜黄昏用at, 黎明用它也不借。

相关文档
最新文档