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小学英语基数词和序数词知识总结及练习表示数目和顺序的词叫做数词数词又分基数词和序数词,基数词表示数量,序数词表示顺序日期、楼层、排名等基数词变序数词口诀:基变序,有规律,词尾加上th;一二三,特殊记,词尾字母t,d,d first,second,third;八减teighth,九去eninth,f来把ve§five—fifth,twelve—twelfth;单词ty作结尾,t y变成tietwenty-twentieth;若是碰到几十几,只变个位就可以twenty-one--twenty-first.序数词表顺序,一般需用定应词the o2two second2nd1one first1st4four fourth4th3three third3rd6six sixth6th5five fifth5th8eight eighth8th7seven seventh7th10ten tenth10th9nine ninth9th12twelve twelfth12th11eleven eleventh11th15fifteen fifteenth15th13thirteen thirteenth13th20twenty twentieth20th21twenty-one twenty-first21st22twenty-two twenty-second22nd23twenty-three twenty-third23rd30thirty thirtieth30th40forty fortieth40th50fifty fiftieth50th基数词和序数词练习
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L ChildrensDay is on the of June六月.
2.There aremonths月in ayear.
3.Teachers Dayison theofSeptember.
4.Three plus力口six is.
四、选择填空
1.My sistersbirthday inontheof October.A.three B.first C.the second
2.—What dateis ittoday--Its ofApril.A.twelfth B.the12th C.12th
3.There aredays ina week.A.the seven B.seventh C.seven
4.Sunday isthe dayof aweek.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力口is twelve.A.sevenB.eight C.nine。