从1到100的序数词一览表序数词变化口诀如下①死记first,second,third.②遇到ve变f.③遇到y时变ie.④8加h,9去e.⑤剩下的都直接加th.基数词onetwothreefourfivesixseveneightnineteneleventwelve序数词firstsecondthirdfourthfifthsixthseventheighthninthtentheleventhtwelfth基数词thirteenfourteenfifteensixteenseventeeneighteennineteen从第13~第19,其变化就是在相应基数词的后面直接加th序数词thirteenthfourteenthfifteenthsixteenthseventeentheighteenthnineteenth中文30313233343536373839第100onehundredth基数词thirtythirty-onethirty-twothirty-threethirty-fourthirty-fivethirty-sixthirty-seventhirty-eightthirty-nine序数词thirtieththirty-firstthirty-secondthirty-thirdthirty-fourththirty-fifththirty-sixththirty-sevenththirty-eighththirty-ninth第30第31第32第33第34第35第36第37第38第39中文20405060708090请大家注意:第20至第99的变化,务必严格参照第30至第39执行。基数词twentyfortyfiftysixtyseventyeightyninety序数词twentiethfortiethfiftiethsixtiethseventietheightiethninetieth中文第20第40第50第60第70第80第90本表制作于2015-12-8下午2:30