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中考英语数词复习摘要(二)

二、序数词“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;

eightt, ninee;

twenty, thirtyninety,需变 yie;

fivetwelve,需将 vef;

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 I’m 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。 Weve 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. What’s one fourth and a half, do you know?

- - Yes, it’s______. ( 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 ANOAHDIGITAL 10. D ANOAHDIGITAL 11. D ANOAHDIGITAL 12. A ANOAHDIGITAL 13. B ANOAHDIGITAL 14. fifth ANOAHDIGITAL 15. C ANOAHDIGITAL 16. B ANOAHDIGITAL 17. C ANOAHDIGITAL 18. B ANOAHDIGITAL 19. C ANOAHDIGITAL 20. B