学生阶段

中考英语数词复习摘要(二)

  • 字号:  
  • 作者:
  • 出自:
  • 发布时间:2011-11-06 08:56:42
  • 浏览:16
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

全部评论

站内网友言论仅代表个人观点,并不代表本站同意其观点,本站不承担由此引起的法律责任。

  • 我要评论
    注:*号部分属于必填内容请仔细填写

最新英语学习资料

推荐英语学习资料