基数词和序数词的含义.doc

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1、基数词和序数词的含义：表示确切数字的是基数词；表示次序的是序数词。基数词变成序数词的口诀：基变序，有规律，词尾加上th;1、2、3特殊记，词尾字母t、d、d；【one---first(1st)two---second(2nd)three---third(3rd)】八去t,九去e;【(eight---eighth(8th)nine---ninth(9th)】ve就用f来代替;【five---fifth(5th)twelve---twelfth(12th)】单词ty做结尾，ty变成tie;twenty---twentiet

2、h(20th)thirty---thirtieth(30th)forty---fortieth(40th)fifty---fiftieth(50th)sixty---sixtieth(60th)seventy---seventieth(70th)eighty---eightieth(80th)ninety---ninetieth(90th)若是碰上几十几，只变个位就可以．thirty-one--thirty-first(31st)sixty-two--sixty-second(62nd)fifty-five--fift

3、y-fifth(55th)基数词和序数词的含义：表示确切数字的是基数词；表示次序的是序数词。基数词变成序数词的口诀：基变序，有规律，词尾加上th;1、2、3特殊记，词尾字母t、d、d；【one---first(1st)two---second(2nd)three---third(3rd)】八去t,九去e;【(eight---eighth(8th)nine---ninth(9th)】ve就用f来代替;【five---fifth(5th)twelve---twelfth(12th)】单词ty做结尾，ty变成tie;twen

4、ty---twentieth(20th)thirty---thirtieth(30th)forty---fortieth(40th)fifty---fiftieth(50th)sixty---sixtieth(60th)seventy---seventieth(70th)eighty---eightieth(80th)ninety---ninetieth(90th)若是碰上几十几，只变个位就可以．thirty-one--thirty-first(31st)sixty-two--sixty-second(62nd)fif

5、ty-five--fifty-fifth(55th)基数词和序数词的含义：表示确切数字的是基数词；表示次序的是序数词。基数词变成序数词的口诀：基变序，有规律，词尾加上th;1、2、3特殊记，词尾字母t、d、d；【one---first(1st)two---second(2nd)three---third(3rd)】八去t,九去e;【(eight---eighth(8th)nine---ninth(9th)】ve就用f来代替;【five---fifth(5th)twelve---twelfth(12th)】单词ty做结尾

6、，ty变成tie;twenty---twentieth(20th)thirty---thirtieth(30th)forty---fortieth(40th)fifty---fiftieth(50th)sixty---sixtieth(60th)seventy---seventieth(70th)eighty---eightieth(80th)ninety---ninetieth(90th)若是碰上几十几，只变个位就可以．thirty-one--thirty-first(31st)sixty-two--sixty-se

7、cond(62nd)fifty-five--fifty-fifth(55th)