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考点五：基数词与序数词辨异

●表示人或物的“数量”，要用基数词。如：five students“五个学生”，one hundred computers“一百台电脑”。

●表示“第几”要用序数词，前面要与the或人称代词所有格连用。例如：the First World War“第一次世界大战”，the third flood“第三层楼”，in her second class“在她的第二节课上”。

●“a/an+序数词”不是强调“第几”，而是表示“又一、另一、再一”。例如：a second Lei Feng“又一个活雷锋”，a third time“再次”。

中考链接

1. My grandparents live in an old apartment with ______ floors and they are on the ______ floor.

A. fifth; three B. fifth; third

C. five; three D. five; third

2. A year is divided into ______ months. August is the ______ month of the year.

A. twelve; eight

B. twelve; eighth

C. twelfth; eight

D. twelfth; eighth

【答案】

1.D 2. B