基数词在表示确切的数字时,不能使用百、千、百万、十亿的复数形式;但是,当基数词表示不确切数字,如成百、成千上万,三三两两时,基数词则以复数形式出现。
There are hundreds of people in the hall.
大厅里有数以百计的人。
Thousands and thousands of people come to visit the Museum of Qin Terra-Cotta Warriors and Horses every day.
每天有成千上万的人来参观秦兵马涌博物馆。
They went to the theatre in twos and threes.
他们三三两两地来到了剧院。
G.表示人的不确切岁数或年代,用几十的复数形式表示。
He became a professor in his thirties.
他三十多岁时成为了教授。
She died of lung cancer in forties.
她四十来岁时死于肺癌。
It was in the 1960s.
那是在二十世纪六十年代。
H.基数词的句法功能
基数词在句中可作主语、宾语、定语、表语、同位语。
The two happily opened the box.
两个人高兴地打开了盒子。(作主语)
I need three altogether.
我总共需要三个。(作宾语)
Four students are playing volleyball outside.
四个学生在外面打排球。(作定语)
We are sixteen.
我们是16个人。(作表语)
They three tried to finish the task before sunset.
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