小升初英语复习重点:序数词是英语网特意为大家整理的,希望对同学们有所帮助。更多内容尽在英语网。
序数词
(1)一般在基数词后加th
eg.fourfourth,thirteenthirteenth
(2)不规则变化
onefirst,twosecond,threethird,fivefifth,eighteighth,nineninth,twelvetwelfth
(3)以y结尾的十位整数,变y为ie再加th
twentytwentieth, fortyfortieth, ninetyninetieth
(4)从二十一后的几十几直至几百几十几或几千几百几十几只将个位的基数词变为序数词。
twenty-first,two hundred and forty-fifth
基数词转为序数词的口诀:
基变序,有规律,词尾加上-th.
一,二,三,特殊记,词尾字母t,d,d.
八去t,九去e, ve要用f替。
ty将y变成i,th前面有个e.
若是碰到几十几,前用基来后用序。
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