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1.one2.two3.three4.four5.five6.six7.seven8.eight9.nine10.ten11.eleven12.twelve1.first2.second3.third4.fourth5.fifth6.sixth7.seventh8.eighth9.ninth10.tenth11.eleventh12.twelfth基数词序数词（表示顺序的数词）1st2nd3rd4th5th6th7th8th9th10th11th12th缩写序数词的变化1one-----first2two------second3three----third4其余的序数词都是由基数词后加-th变化而来的吗？几个特殊变化的序数词five(五)--fifth(第五)twelve(十二)--twelfth(第十二)eight(八)----eighth(第八)nine(九)----ninth(第九)基变序，有规律；词尾加上thfour（四）---fourth(4th)第四six（六）---sixth(6th)第六seven（七）---seventh(7th)第七ten（十）---tenth(10th)第十eleven（十一）---eleventh(11th)第十一我记住Thisisarace.LiMingisthefirst.Thegirlisthesecond.Theboyinredshortsisthethird.Whoisthefirst?介词短语：意思是“穿着红色短裤”易错警惕Lookattheboy______blue.Heisthenewstudentsinourclass.A.inB.onC.with解析：考查in的用法。inblue的意思是“穿着蓝色衣服”全句意思是：A.in说一说请同学们给十二生肖排排序，并说一说自己的属相是哪一个。secondfirstthirdfourthfifthsixthseventheighthninthtentheleventhtwelfthsevensixthreezeroninetwooneeightfourfive火眼金睛tenthnintheighthseventhsixthfifthfourththirdsecondfirstGame我会写写出下列单词的序数词two______three______five_______eight_______nine_______twelve______seven______four_______secondninthfifththirdtwelftheighthseventhfourth今天你学会了什么？