1、,Lets learn twelvemonths (月份).,January February March April May June July August September October November December,January,February,March,April,May,June,July,August,September,October,November,December,ebruary,January or（或） F_,春节,Planting Tree Day 植树节,劳动节,arch ay,and,M,M,母亲节,uly ugust,J,A,Summer Ho
2、lidays(暑假),and,Army Day,建军节,National Day,国庆节,Christmas Day,New Years Day,新年,基数词变序数词歌 基变序，有规律： 词尾加上th（fourth，sixth） 一、二、三，特殊记； 结尾字母t，d，d（first，second，third）; 八减t，九去e （eighth，ninth）; ve要用f替（fifth，twelfth）; ty将y变成i； th前面有个e。 若是碰到几十几， 前用基来后用序。,Learn these numbers and find out the rules:,1st first 2nd se
3、cond 3rd third 4th 5th 6th 7th 8th eighth 9th ninth 10th,fifth,一起找找规律,fourthsixth seventhtenth,foursix seventen,1 one 2 two 3 three 4 5 five 6 7 8 eight 9 nine 10,基数词,序数词,11 eleven 11th eleventh 12 twelve 12th twelfth13 thirteen 13th 14 fourteen 14th 15 fifteen 15th 16 sixteen 16th17 seventeen 17th1
4、8 eighteen 18th 19 nineteen 19th 20 twenty 20th twentieth,thirteenth,fifteenth,sixteenth,seventeenth,eighteenth,nineteenth,fourteenth,序数词的用法：,1. 序数词前一般要加定冠词the。如：The first boy is my brother.,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,下一页,序数词的缩写,阿拉伯数字个位序数词的后两位字母
5、： thirty-first31st twenty-second 22nd sixty-fourth 64th 你能写出下列序数词的缩写吗？ 43 75 90,A:When is your birthday?,B:My birthday is in .,A:Which day?（哪一天？） B:Its on June 2nd.,When is Teachers Day?,Its September10th.,When is National Day?,Its October 1st.,日期的表达 date,Whats the date today?,Its_,December 21st.,When is Christmas Day?,Its on December25th,（ 1980.9.12),When is his birthday?,His birthday is on September 12th.,Yao Ming,When is your birthday?,Its on _ .,请写出下列数字的序数词。 11 22 33 44 55 12 61 88 79,
