12-20 22:51:02 浏览次数:558次 栏目:初三英语语法
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; 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 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:I’ll 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. –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 11.D 12.D 13.A 14.B 15.fifth 16.C 17.B 18.C 19.B 20.C 21.B
,中考英语数词分析:序数词tag: 中考英语 初三英语语法,九年级英语语法,初中英语学习方法,初中学习 - 初三学习 - 初三英语 - 初三英语语法
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