智橡树智能英语初中语法之基数词的用法
1.基数词在句子中的作用
① 作主语,但数词前面一般要加上定冠词 the。
The four swam across the river at last. 那四个人最终游过了河。
② 作定语
I have three big apples. 我有三个大苹果。
③ 作表语
What"s five and six?It"s eleven. 五加六是多少?是十一。
④ 作宾语
-How many do you want? 你想要多少?
-(I want)Five,please. 我想要五个。
⑤ 作同位语
Is there any room for us two? 有我们两个人的房间吗?
You three are really crazy. 你们三个简直是疯了。
2.hundred,thousand,million和 billion的用法
①表示具体数字时,如前面有数词,hundred,thousand,million,billion要用单数形式。
There are three thousand students in my school. 我们学校有3000人。
Two hundred workers refused to work any longer. 200名工人拒绝再工作。
②表示成百上千/万等非具体数字,hundred,thousand,million,billion 要用复数形式。
They spent millions of dollars building the bridge. 他们花了上百万美元修建了那座大桥。
Thousands of people were killed during the earthquake. 成千上万的人死于那场地震。
3.几十年代和年龄的表达法
①表示在几十年代时,应将几十年代改用复数形式,形成in the+几十的复数。
His father was born in the nineteen fifties/in 1950"s. 他父亲出生于20世纪50年代。
In the nineteen sixties/in 1960’s,many people in China lived a poor life. 20世纪60年代,很多中国人过着贫穷的生活。
②表示某人几十岁时,应将几十岁改用复数形式,形成in one"s+几十岁的复数。
In my twenties,I even didn"t know what television was. 我二十几岁时还竟然不知道电视是什么。
My grandfather got retired in his sixties. 我爷爷六十几岁时退休了。