1～90的英文序数词怎么写

1到20为：

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：Motherwasmyfirstteacherinmylife.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：Onefifthofthestudentsherearefromthecountry.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.