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        中考英语数词复习摘要(二)

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        • 发布时间:2011-11-06 08:56:42
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        二、序数 三注意。

        一)序数词的构成及基本用法。

        注意:序数词一般以与之相应的基数词后加-th 构成,少数几个需特别记忆。为方便大家记忆,请看下面口诀。

        基变序,有规律,first, second, third要牢记;

        其它变化有公式,基数词尾加-th;

        eight去t , nine去e;

        从twenty, thirty到ninety, 需变y为ie;

        five和twelve, 需将ve变f;

        若是遇到几十几,只变个位就可以。

        另外,注意:序数词前要加定冠词the, 在句中作定语放在所修饰的名词前。如:December is the twelfth month of the year. 十二月是一年中的第12个月。

        挑战中考

        ( )15. Thursday is the _____ day of the week. (five)

        ( 用所给词的适当形式填空 ) (05福州市课改实验区)

        ( )16. He believed his lucky number was ten, so he decided to live on the ____ floor.

        A. lowest B. ten C. tenth (05重庆市)

        ( )17. I have made ____ dumplings. Now Im making the ___ one.

        A. twenty; twentieth-first B. twenty; twenty-first

        C. twentieth; twenty-first D. twenty; twenty-one (05贵州黔西南州)

        二)序数词与冠词a/an连用。

        注意:序数词前加不定冠词a/an, 表示又一、再一的意思。如:Please try it a second time. 请再试一试。 但基数词与more连用,并放在more前,表示另外有、还有的意思。如:Ill take one more (=another) pencil. 我还要一支铅笔。We ve just started! There were twenty more trees to be planted! 我们才刚开始呢!还有20棵树要栽呢!

        挑战中考:

        ( )18.Time is not enough for so much work. ____ people are needed, I think. (05 河南省实验区)

        A. Other two B. Only two C. Two more D. Two others

        ( )19. Both of the two rulers are broken. I want to buy a ___ one.

        A. three B. third C. forth D. 不填 (03天津市)

        三)分数的表达法。

        注意:分数以基数词和序数词合成的。分子用基数表示,分母用序数词表示,分子大于1,分母要用复数(-s)。如:1/3(三分之一) :one third 2/3 :two thirds

        挑战中考:

        ( )20. This is a big class, and ____ of the students are girls. (05河北省)

        A. two third B. second three C. two thirds D. two three

        ( )21. Whats one fourth and a half , do you know?

        --Yes, its ______. (04杭州市)

        A. two sixths B. three fourths C. one three D. three sixths

        练习参考答案:

        1.A 2.A 3.D 4.D 5.C 6.D 7.B 8.A 9.A 10.B 11.D 12.D 13.A 14.B 15.fifth 16.C 17.B 18.C 19.B 20.C 21.B

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