公共英語等級考試PETS二級語法資料匯總(四)數(shù)詞

字號:

(四)數(shù)詞
    1. 數(shù)詞分類:
    分類 在句中充當?shù)某煞?例詞
    基數(shù)詞 主語、表語、賓語、定語、同位語 one, eleven, fifty
    序數(shù)詞 主語、表語、賓語、定語、同位語、狀語 second, eighth, fortieth
    2.基數(shù)詞的構成及用法:
    類型 構成方法 例詞
    1-12 單獨的詞 one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve
    13-19 在3-9的詞尾加上“-teen” thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen
    20,30,40-90 以“-ty”結尾 twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety
    100,1000,1000,000,
    1000 000 000, 百,千,百萬,十億都有具體量詞 one/a hundred, one/a thousand,
    one/a million, one/a billion
    21-99 “幾十”和“個位”之間用連字符“-” twenty-three,forty-eight
    101-999 “百位”后“十位”前加“and” 826: eight hundred and twenty-six
    1,000以上 先從右向左每三位數(shù)加一逗號,從右向左第一個逗號為thousand,第二個為million,第三個為billion,然后每三位為一單位從左向右讀。 1,234,567,892: one billion, two hundred thirty-four million, five hundred sixty-seven thousand eight hund red and ninety-two
    3.序數(shù)詞的構成:
    類 型 構成特點 例詞及縮寫式
    one, two, three 單獨記憶 first (1st), second (2nd), third (3rd)
    four~nineteen 在基數(shù)詞尾加-th fifth (5th), ninth (9th), twelfth (12th)
    -ty結尾的詞 把y→ie,在基數(shù)詞尾加-th twentieth (20th), fiftieth (50th), fortieth (40th)
    以1~9結尾的多位數(shù) 變個位數(shù)為序數(shù)詞即可 twenty-first (21st), ninety-ninth (99th)
    hundred, thousand, million, billion 在基數(shù)詞尾加-th即可 hundredth (100th) thousandth (1,000th) millionth
    (1,000,000th) billionth (1,000,000,000th)
    4.序數(shù)詞的用法:
    序號 用法特點 舉 例
    1 前面要加the He’s always the first to get to meeting-room.
    2 前面用a/an表“又一,再一” He’d better try a fourth time.
    (四)數(shù)詞
    1. 數(shù)詞分類:
    分類 在句中充當?shù)某煞?例詞
    基數(shù)詞 主語、表語、賓語、定語、同位語 one, eleven, fifty
    序數(shù)詞 主語、表語、賓語、定語、同位語、狀語 second, eighth, fortieth
    2.基數(shù)詞的構成及用法:
    類型 構成方法 例詞
    1-12 單獨的詞 one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve
    13-19 在3-9的詞尾加上“-teen” thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen
    20,30,40-90 以“-ty”結尾 twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety
    100,1000,1000,000,
    1000 000 000, 百,千,百萬,十億都有具體量詞 one/a hundred, one/a thousand,
    one/a million, one/a billion
    21-99 “幾十”和“個位”之間用連字符“-” twenty-three,forty-eight
    101-999 “百位”后“十位”前加“and” 826: eight hundred and twenty-six
    1,000以上 先從右向左每三位數(shù)加一逗號,從右向左第一個逗號為thousand,第二個為million,第三個為billion,然后每三位為一單位從左向右讀。 1,234,567,892: one billion, two hundred thirty-four million, five hundred sixty-seven thousand eight hund red and ninety-two
    3.序數(shù)詞的構成:
    類 型 構成特點 例詞及縮寫式
    one, two, three 單獨記憶 first (1st), second (2nd), third (3rd)
    four~nineteen 在基數(shù)詞尾加-th fifth (5th), ninth (9th), twelfth (12th)
    -ty結尾的詞 把y→ie,在基數(shù)詞尾加-th twentieth (20th), fiftieth (50th), fortieth (40th)
    以1~9結尾的多位數(shù) 變個位數(shù)為序數(shù)詞即可 twenty-first (21st), ninety-ninth (99th)
    hundred, thousand, million, billion 在基數(shù)詞尾加-th即可 hundredth (100th) thousandth (1,000th) millionth
    (1,000,000th) billionth (1,000,000,000th)
    4.序數(shù)詞的用法:
    序號 用法特點 舉 例
    1 前面要加the He’s always the first to get to meeting-room.
    2 前面用a/an表“又一,再一” He’d better try a fourth time.