序数词

twenty---twentieth
forty---fortieth sixty---sixtieth
thirty---thirtieth fifty---fiftieth seventy---seventieth ninety---ninetieth
eighty---eightieth
基数词变序数词
1st 2nd 3rd 4th 5th 8th 9th 12th 20th
2
3
three
four
4
5 8 9 12 20
five
eight nine twelve twenty
基数词
序数词
6
7 10 11 13 15 21 25
six
seven ten eleven thirteen fifteen twenty-one twenty-five
Let’s try.
January Aptil
February May
March June
Let’s say.
January is the first. February is the second. March is the third. .....…
日 期 的 表 示
星期 →月份 → 日期（用序数词） 1月1日 星期三 Wednesday January first 5月1日 星期四 Thursday May first 6月9日 星期一 Monday June ninth
基数词变为序数词：
first second third... 序数词及应用： Sunday July second
Homework: 1.每天朗读英语15分钟。 2.做活动手册。 3.序数词一个“5+1”。
6
sixth
7
seventh
8
eighth
9
ninth
10
tenth
重点知识
基数词 表示个数的词
1.one 2.two 3.three 4.four 5.five 6.six 7.seven 8.eight 9.nine 10.ten 11.eleven 12.twelve
wk.baidu.com
序数词
Let’s say them together.
表示顺序的词
first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth
the
third floor
second floor first floor
the
flat
the
12 11 10 9 8 7 6 5 4 3 2 1
Unit3
First,Second,Thrid
Let’s chant.
《十二个月份》儿歌歌词：
一月梅花香又香，一月一月January January 二月兰花盆里装，二月二月February February
三月桃花红千里，三月三月 March March
四月蔷薇靠短墙，四月四月April April 五月石榴红似火，五月五月 May May 六月荷花满池塘，六月六月 June June 七月栀子头上戴，七月七月July July 八月丹桂满枝香，八月八月August August 九月菊花初开放，九月九月September September
December November Octorber September August July June May April March February January
twelve
twelfth
It’s on the
floor.
five
fifth
基数词
序数词
缩写形式
1
one two
first 第一 second 第二 third 第三 fourth 第四 fifth 第五 eighth 第八 ninth 第九 twelfth 第十二 twentieth 第二十
请将下列基数词变为序数词
five one two nine eleven sixteen eighteen twenty-one sixty-three seventy
fifth first second ninth eleventh sixteenth eighteenth twenty-first sixty-third seventieth
sixth
seventh tenth eleventh thirteenth fifteenth twenty-first twenty-fifth
序数词
•one ---first three---third five---fifth seven---seventh nine---ninth two---second four---fourth six---sixth eight---eighth •ten----tenth
十月芙蓉正上妆，十月十月 October October
十一月水仙供上案，十一月十一月 November November 十二月辣梅雪里香，十二月十二月 December December
Who is the first?
谁是第一？
first
second
third
4
fourth
5
fifth