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      英語常用數(shù)詞學習:基數(shù)詞、序數(shù)詞

      時間: 春生1139 分享

        (1)1-20

        one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen, sixteen,seventeen,eighteen,nineteen,twenty

        (2)21-99 先說“幾十”,再說“幾”,中間加連字符。

        23→twenty-three,34→thirty-four,45→forty—five,56→fifty-six,67→sixty-seven,78→seventy-eight,89→eighty-nine,91→ninety-one

        (3)101—999先說“幾百”,再加and,再加末兩位數(shù)或末位數(shù);

        586→five hundred and eighty-six,803→eight hundred and three

        (4)l,000以上,先從右往左數(shù),每三位數(shù)加一個“,”,第一個“,”前為thousand.第二個“,”前為million,第三個“,”前為billion

        1,001→one thousand and one

        18,423→eighteen thousand,four hundred and twenty-three

        6,260,309→six million two hundred and sixty thousand three hundred and nine

        750,000,000,000→seven hundred and fifty billion

        序數(shù)詞

        (1)一般在基數(shù)詞后加th

        eg.four→fourth,thirteen→thirteenth

        (2)不規(guī)則變化

        one→first,two→second,three→third,five→fifth,eight→eighth,nine→ninth,twelve—twelfth

        (3)以y結(jié)尾的十位整數(shù),變y為ie再加th

        twenty→twentieth, forty→fortieth, ninety→ninetieth

        (4)從二十一后的“幾十幾”直至“幾百幾十幾”或“幾千幾百幾十幾”只將個位的基數(shù)詞變?yōu)樾驍?shù)詞。

        twenty-first,two hundred and forty-fifth

        基數(shù)詞轉(zhuǎn)為序數(shù)詞的口訣:

        基變序,有規(guī)律,詞尾加上-th.

        一,二,三,特殊記,詞尾字母t,d,d.

        八去t,九去e, ve要用f替。

        ty將y變成i,th前面有個e.

        若是碰到幾十幾,前用基來后用序。

        本文作者:陸聰(微信公眾號:陸聰老師)

        本文為原創(chuàng)文章,版權歸作者所有,未經(jīng)授權不得轉(zhuǎn)載!


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