数词是表示数目多少和顺序先后的词,可分为基数词和序数词两类。
高考中主要考查的基数词可参见下表:
使用基数词时要注意:
(1)一般情况下基数词为单数形式,但在以下特殊情况下可以使用复数形式:①前边没有加数字或a few等其他限定词修饰的hundred和thousand和million等基数词可用复数形式,后面再加“of + 名词”,表示不确定的数量关系,例如: hundreds of people 数以百计的人 // thousands and thousands of workers 成千上万的工人。 ②在一些介词词组里表示方式,例如: They arrived in twos and threes. 他们三三两两地到达了。 ③表示人的岁数(以“in + the + 表示‘几十'的基数词的复数形式”)或年代。例如: He is in his thirties. 他三十多岁了。// It took place in the 1950 ' s. 那件事发生在二十世纪五十年代。
(2)表示数量的dozen( n. 一打,十二个)和score( n. 二十)可以被视为基数词。例如: I want a dozen pencils, please! 劳驾,我要一打铅笔。// Scores of people attended the meeting. 有数十个人参加了这次会议。
下表是主要的基数词与序数词的对照表:
语法考点运用实例·典型单选题>>
【例】 It is reported that the floods have left about______people homeless.
A. two thousand B. two-thousands C. two thousands D. two thousands of
【答案】 A
【解析】 直接修饰可数名词的基数词通常不用复数形式,考生可以先排除选项B和C;由于thousands of 的前面不能有数词,考生可以再排除选项D,确定A为最佳选项。
本章补充强化训练题>>
1. —How far is it from here to the History Museum?
—It is______.
A. nearly two hours ride B. about two hour's drive C. nearly two hours' ride D. about two-hour's drive
2.______Bruce became______doctor while her sister turned______lawyer.
A. In her thirties; a; 不填 B. In the 30s; a; a C. In 30s; a; 不填 D. In her 30s; a; a
3. The lady said she would buy a gift for her daughter with the______.
A. 20 dollar remained B. remaining 20 dollars C. remained 20 dollar D. 20 dollars to remain
4. There is still______who said he was______to reach the top of the mountain besides these two people.
A. the third one; first B. third one; the one C. a third one; the first D. third; first
5. “I want______apples,”said the old lady.
A. two dozens B. two dozens of C. two dozen D. dozen of
6. Take this medicine______and you'll be all right in one or two days.
A. one day twice B. two times one day C. one day two times D. twice a day
本章补充强化训练题参考答案>>
1. C 2. A 3. B 4. C 5. C 6. D