【例题4】
【题 干】There are ________ stars in the sky.
A. million of B. millions of C. the million D. a million of
【答案】B
【解析】考查基数词hundred, thousand, million, billion等词前有具体数词或several修饰时，必须用单数；而当这些词前面没有具体的基数词修饰时，则这些词需要用复数形式且后面跟of表示数量多。
五、课堂运用
【基础】
1. It took me ________ to find out the key to the drawer.
A. one and half hours B. one and a half hours C. one and a half hour D. one and half hour
【答案】B
【解析】本题考查“一个半小时”的表达。常用两种表示法“one and a half hours”或者“one and half an hour”
2. Here will be a comedy on TV at ________ this evening.
A. seven past thirty B. half past seven C. seven the thirty D. thirty to seven
【答案】【解析】B
本题考查时刻表达法。由四个选项可以知道是表达7：30，一半常用half表示，介词用past。
3. 334 is read ________.
A. three hundreds and thirty four B. three hundreds thirty four C. three hundred and thirty fourth D. three hundred and thirty-four
【答案】D
【解析】 本题考查三位数的读法。三位数的基数词须在百位和十位（若无十位则和个位）之间用and连接 ，同时几十几的基数词的十位数与个位数之间要用连字符“-”连接。A,B,C都不正确。
4. My friend was born on _________.
A. three of July, 1979 B. the third of July,1979 C. 1979, July the third D. 1979, the third of July
【答案】B
【解析】本题考查年月日的英语表示法。英语年月日的顺序为“月日年”或者“日月年”，可以排除出生日期是具体的一天，因此日要用序数词。排除A。
C,D。