名校版 英语数词最全总结

名校版英语数词最全总结一、基数词和序数词1.基数词A.1-10:one/two/three/four/five/six/seven/eight/nine/tenB.11-19:eleven/twelve/thirteen/fourteen/fifteen/sixteen/seventeen/eighteen/nineteenC.20-90:twenty/thirty/forty/fifty/sixty/seventy/eighty/ninetyD.〃几十几基数词〃：21:twenty-one75:senenty-sixE.百位数:100:ahundred101:onehundredandone320:threehundredandtwenty521:fivehundredandtwenty-oneF.千位及以上：1314:onethousandthreehundredandfourteen5201314:fivemilliontwohundredandonethousandthreehundredandfourteenG.基数不确定的数字时，可以写成复数形式，〃成百上千、成千上万、三三两两〃HundredsofpeopleThousandsandthousandsofpeopleTheywenttothetheatreintwosandthreesH.基数词一不确定的岁数、年代。几十的复数形式Hebecameaprofessorinhisthirties/forties基数词口诀：找清规律很容易，十二以内词名异；十三数到十九去，后加・teen莫忘记。二十、三十至九十，整十之后有-ty;如果要说〃几十几〃，中间〃-〃号别丢弃，hundred是〃一百〃，请你记住莫大意。如果要说几百几，中间and加上去。2.序数词A.l-9:first/second/third/fourth/fifth/sixth/seventh/eighth/ninth/tenthB.ll-19:eleventh/twelfth/thirteenth/fourteenth/fifteenth/sixteenth/seventeenth/eighteenth/nineteenthC.20-90:twentieth/thirtieth/fortieth/fiftieth/sixtieth/seventieth/eightieth/ninetiethD.〃几十几〃第22:twenty-second序数词口诀：一,二，三要全变;(one-first;two-second;three-third)其余都加th,th里有例外,8去t,(eight-eighth)9去e(nine-ninth)字母f代ve(five-fifth;twelve-twelfth);ty变成tie(twenty-twentieth)若要变化几十几，只变个位就可以(twenty-one-twenty-first)二、分数的表达A.基数词/序数词1/5=(one-fifth,afifth)1/3=(one-third,athird)B.分子超过1时，分母必须加上’s。4/5=four-fifths3/5=three-fifthsC.分母为2时，要用half表示，不能用second1/2=one-half,ahalfD.分母为4时,除了用fourth外还可以用quarter1/4=(one-fourth,one-quarter)3/4=(three-fourths,three-quarters)E.遇见带分数，整数部分要用基数词，用and和分数连接。6又1/2=sixandahalf,eightandone-halfF.遇见复杂的分数，只要在分