当前位置: 首页 > >

牛津初中英语_7B__unit1__语法__基数词_序数词

发布时间:

Learn these numbers and find out the rules: st twenty-first th 1st first 21 11 eleventh 2nd second 12th twelfth 22nd twenty-second rd twenty-third th 3rd third 23 13 thirteenth 4th fourth 14th fourteenth 24th twenty-fourth th twenty-fifth th 5th fifth 25 15 fifteenth th twenty-sixth th 6th sixth 26 16 sixteenth 7th seventh 17th seventeenth 27th twenty-seventh 8th eighth 18th eighteenth 28th twenty-eighth th twenty-ninth th 9th ninth 29 19 nineteenth 10th tenth 20th twentieth 30th thirtieth 31st thirty-first

基数词变序数词
表示顺序的数词叫序数词。 基数词变序数词 的规则是: (1) 大部分数词在词尾加th : 如: fourth(第四) thirteenth(第十三) hundredth(第一百) (2) 表示整十的基数词, 变 y为ie, 再加 eth; 如:twentieth 第二十 eightieth第八十 (3) 特殊的序数词有: 第一 first, 第二 second, 第三 third, 第五 fifth, 第八 eighth, 第九 ninth ,第十二 twelfth

(4) 要把一个“ 几十几” , “ 几百几” 的 基 数词变成序数词,只需把个位数变成 序数词。 如: 32---thirty-second
256--- two hundred and fifty-sixth

(5) 在表示编号的东西时,可以用基数词表 示, 也可用序数词表示 如: the first lesson = Lesson One
the sixth grade = Grade Six

1st
3rd 8th 9th

first

2nd

second
fifth twelfth

third 5th eighth 12th ninth

基变序有规律,结尾字母是 th; 一、二、 三,特殊记,其余词尾 th;八减t, 九去e; f 要把ve替。y 变成 ie, 再加th不难记;几十 几,也好记,个位序数要牢记。

The first month of the year is January. February second March third April fourth May fifth June sixth July seventh August eighth September ninth October tenth November eleventh twelfth December

写出下列日期的英文表达法 1. 3 月12日 March 12th 3. 1月5日 January 5th 2. 8月8 日 August 8th 4. 7月20 日 July 20th

5. 12月1日 December 1st 6. 9月9日 September 9th 7. 4月3日 April 3th 8. 11月2日 November 2nd

9. 2月14日 February 14th 10. 5月30 日 May 30th

11. 6月23日 June 23rd

12. 10月21日 October 21st

Read the dates:
Writing(写法) January 1st
March 8th

Reading (读法)
January (the) first March (the) eighth

August (the) second August 2nd September 10th September (the) tenth
July 3rd February 12th October 20th December 25th July (the) third February (the) twelfth October (the) twentieth December (the) twenty-fifth

序数词的用法:
1. 序数词前除了有其它限定词外要加定冠词 the。 如:The first boy is my brother. This is my first lesson. 2. 表示编号时,常把基数词放在名词后面来表示 顺序,相当于“the + 序数词 + 名词”。 如: lesson five = the fifth lesson 3. 表示分数时,基数词作分子,序数词作分母, 当分子大于1时,分母要用复数。 如:1/4 one fourth; 2/5 two fifths 4. 序数词常用作名词的定语,但当名词前面已有 物主代词等限定词时,则不能再用the。 如:The second boy likes playing baseball.




友情链接: