基数词,序数词的变化规则答:基数词变序数词歌 基变序,有规律 词尾加上-th(fourth,sixth)一、二、三,特殊例,结尾字母t,d,d(first,second,third)八去t,九去e,(eighth,ninth)ve 要用 f 替;(fifth,twelfth)ty将y改成i,th前面有个e。若是碰到几十几,前用基来后用序。祝你学习更上一层楼!请记得采纳,谢谢!(*...
英语基数词变序数词的规则答:seventeen, eighteen, nineteen.3、21-29的基数词:twenty-one, twenty-two, twenty-three, twenty-four, twenty-five, twenty-six, twenty-seven, twenty-eight, twenty-nine.4、20-90的基数词:twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety.5、100 基数词 :hundred.6、1-10的序数词:fir...