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1、
數(shù)詞
1.數(shù)詞的類別
基數(shù)
詞
1-12詞尾不固定
one two three four five six seven eight nine ten eleven twelve
13-19詞尾加teen
thirteen fourteen fifteen sixteen seventeen eighteen nineteen
20-90詞尾加ty
twenty thirty forty fifty sixty seventy eighty ninety
單位詞
100：hundred 1,000 ：thousand 1,000,000 ：million
1,0
2、00,000,000：billion
序
數(shù)
詞
第1-第3，形式各異
first (1st) second (2nd) third (3rd)
第4-第19，基數(shù)詞 + th
fourth fifth sixth seventh eighth ninth tenth eleventh twelfth
thirteenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth
第20-第90，變y為ieth
twentieth thirtieth fortieth fiftieth six
3、tieth seventieth eightieth ninetieth
只變個(gè)位基數(shù)詞為序數(shù)詞
twenty-first thirty-second forty-third fifty-fourth sixty-fifth
100th (one) hundredth 101th (one) hundred and first
122th (one)hundred and twenty-second
2.分?jǐn)?shù)表達(dá)
（1）分子基數(shù)詞，分母序數(shù)詞；分子大于一，分母加“s”；分母若是2和4,half, (a) quarter可代替。
eg; 1/4:one fourth
4、/ one quarter/ a quarter 3/4: three fourths/ three quarters
1/2: one / a half （不用one second） two and three fifths
（2）分子和分母之間加in/ out of，分子在前，分母在后，分子分母都用基數(shù)詞。
eg: 1/10:one in/ out of ten 5/8:five in/ out of eight
3.倍數(shù)表達(dá)
A is + 倍數(shù)/分?jǐn)?shù)/百分?jǐn)?shù)+ as + 形容詞/副詞的原級(jí) + （as B ）
A is + 倍數(shù)/分?jǐn)?shù)
5、/百分?jǐn)?shù)+ 形容詞/副詞的比較級(jí)+ （than B ）
A is + 倍數(shù)/分?jǐn)?shù)/百分?jǐn)?shù)+ the + 名詞 + of B
【注意】一倍：once 兩倍：twice/double ≥3倍：3/4/5……times
4.hundred,thousand, dozen等
1）與基數(shù)詞及several, some, many, about, nearly, almost, over, around等連用時(shí)，均不加?“s”；表泛指時(shí)加“s”.
eg: hundreds of上百的 dozens of成打的
2）與人稱代詞的賓格，定冠詞，指示代詞，形容詞性物主代詞，名詞所
6、有格連用時(shí)，加of
eg:hundred + n hundred + of + 定冠詞+ n/指示代詞+ n/代詞賓格
【注意】score of + n(of一般不可省略)
5.可數(shù)名詞及不可數(shù)名詞的修飾語(yǔ)
1）只修飾可數(shù)名詞：
many, a good / great many, many a, a (good/ large/ great ) number of, numbers of, few, a few, scores of, several, dozens of, scores of
2）只修飾不可數(shù)名詞：
much,a little (
7、of),a bit of,a great/good deal of,a large amount of, amounts of
3)既可修飾可數(shù)名詞，又可修飾不可數(shù)名詞：
a lot of, lots of, some, any, enough, plenty of, a large quantity/ supply of, large quantities of, supplies of , a mass of, masses of, all, more, most
6.數(shù)字增減表示法
by + 百分?jǐn)?shù)/分?jǐn)?shù)/數(shù)字（增加/減少了……） to + 百分?jǐn)?shù)/分?jǐn)?shù)/數(shù)字（增加/減少到……）
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河北省撫寧縣第六中學(xué)2013-2014學(xué)年高二英語(yǔ) 數(shù)詞學(xué)案
