基数词与序数词的用法.ppt

1.（2016·安徽）Please turn to page____ and take a look at the picture on it.
A. the eightieth B. eightieth C. eighties D. eighty
【解析】表示"第80页"要用page eighty或the eightieth page。故选D。
D
2.（2015·安徽）I live in Room 403. Sam lives in the room right above mine, on the ____ floor.

A. third B. three
C. fifth D. five
【解析】句意：我住在403房间，萨姆刚好住在我楼上的那个房间，（他）在五楼。表示“五楼”，要用序数词，即the fifth floor。故选C。
C
3.（2014·安徽）It's never too old to learn. Karl Marx began to learn English in his____ .
A. the fiftieth B. fiftieth
C. fifty D. fifties
【解析】表示“几十”的数词的复数形式可用来表示人的岁数，其结构为“in one's + 数词的复数形式”。故选D。
D
4.（2013·安徽）— Excuse me, sir. Here is a package for Lin Tao. Which room does he live in?
—____ .
A. 308 Room B. Room 308
C. The Room 308 D. The 308 Room
【解析】表编号时，通常用基数词，且数词放在被修饰词的后面。注意此时名词和基数词的首字母都要大写。故选B。
B
【解析】表示某人多少岁的生日，应用序数词。又因为seventy的序数词形式为seventieth，故选B。
5. （2012·安徽）— How was your weekend?
— Great! It was my grandfather's ____ birthday. We enjoyed ourselves.
A. seventy B. seventieth C. the seventieth D. seventeenth
B