first、second、third、fourth、fifth、sixth、seventh、eighth、ninth、tenth、eleventh、twelfth、thirteenth、fourteenth、fifteenth、sixteenth、seventeenth、eighteenth、nineteenth、twentieth
21到40为：
twenty-first、twenty-second、twenty-third、twenty-fourth、twenty-fifth、twenty-sixth、twenty-seventh、twenty-eighth、twenty-ninth、thirtieth、thirty-first、thirty-second
thirty-third、thirty-fourth、thirty-fifth、thirty-sixth、thirty-seventh、thirty-eighth、thirty-ninth、fortieth
41到60为：
forty-first、forty-second、forty-third、forty-fourth、forty-fifth、forty-sixth、forty-seventh、forty-eighth、forty-ninth、fiftieth、fifty-first、fifty-second、fifty-third、fifty-fourth、fifty-fifth、fifty-sixth、fifty-seventh、fifty-eighth、fifty-ninth、sixtieth
61到80为：
sixty-first、sixty-second、sixty-third、sixty-fourth、sixty-fifth、sixty-sixth、sixty-seventh、sixty-eighth、sixty-ninth、seventieth、seventy-first、seventy-second、seventy-third
seventy-fourth、seventy-fifth、seventy-sixth、seventy-seventh、seventy-eighth、seventy-ninth、eightieth
81到99为：
eighty-first、eighty-second、eighty-third、eighty-fourth、eighty-fifth、eighty-sixth、eighty-seventh、eighty-eighth、eighty-ninth、ninetieth、ninety-first、ninety-second
ninety-third、ninety-fourth、ninety-fifth、ninety-sixth、ninety-seventh、ninety-eighth、ninety-ninth
扩展资料
在英语中，使用序数词时前面要加定冠词 the，但是，在下面的情况下则不加 the:
1.当序数词前有形容词性物主代词或名词所有格修饰时，序数词前不用 the 。
例句：Mother was my first teacher in my life.妈妈是我生命中的第一个老师 。
2.当表达分数时，序数词前不用 the 。
例句：One fifth of the students here are from the country. 这儿1/5的学生来自农村 。
序数词变化规则口诀：
1.基变序，有规律，词尾加上-th.
2.一，二，三，特殊记，词尾字母t,d,d.
3.八去t，九除e,ve要用f替，ty将y变成i,th前面有个e.
4.若是碰到几十几，前用基来后用序.
5.整十基数变序数，先把ty变成tie.
6.要是遇上2位数，十位基数，个位序，th最后加上去.
4.一到九十的英语one【1】 two【2】 three【3】 four【4】five【5】six【6】seven【7】eight【8】nine【9】ten【10】eleven【11】twelve【12】thirteen【13】fourteen【14】fifteen【15】sixteen【16】seventeen【17】eighteen【18】nineteen【19】twenty【20】twenty-one【21】twenty-tow【22】twenty-three【23】twenty-four【24】twenty-five【25】twenty-six【26】twenty-seven【27】twenty-eight【28】twenty-nine【29】thirty【30】thirty-one【31】thirty-tow【32】thirty-three【33】thirty-four【34】thirty-five【45】thirty-six【46】thirty-seven【47】thirty-eight【48】thirty-nine【49】fifty【50】fifty-one【51】fifty-tow【52】fifty-three【53】fifty-four【54】fifty-five【55】fifty-six【56】
fifty-seven【57】fifty-eight【58】fifty-nine【59】sixty【60】sixty-one【61】sixty-tow【62】sixty-three【63】sixty-four【64】sixty-five【65】sixty-six【66】sixty-seven【67】sixty-eight【68】sixty-nine【69】seventty【70】seventy-one【71】senenty-tow【72】seventy-three【73】senenty-four【74】seventy-five【75】seventy-six【76】seventy-seven【77】seventy-eight【78】seventy-nine【79】eighty【80】eighty-one【81】eighty-tow【82】eighty-three【83】eighty-four【84】eighty-five【85】eighty-six【86】eighty-seven【87】eighty-eight【88】eighty-nine【89】ninety【90】hundred【100】例子112【onehundredandtwelve】thousand【1000】
5.一到十九的英语单数怎么写1 - one
2 - two
3 - three
4 - four
5 - five
6 - six
7 - seven
8 - eight
9 - nine
10 - ten
11 - eleven