28．There are 300 students in Grade Nine. About of the students were born in 2002.

A. four five

B. four fifths

C. fourth five

D. fourth fifths

【答案】 B

【解析】【分析】句意：九年级有300名学生。大约五分之四的学生出生于2002年。分数的表示方法：分子要用基数词；分母要用序数词，当分子大于1时，分母要用复数。故选B。

【点评】考查分数的表示方法。注意基数词和序数词的构成。

29．There are children in my grandfather's family and he is the child of the family. A. nine; fifth B. nine; five C. ninth; five D. ninth; fifth

【答案】 A

【解析】【分析】句意：我外公家有9个孩子，并且他是第五个孩子。A.nine；fifth9；5；

B.nine；five 9；5；

C.ninth；five 第九；5

D.ninth；fifth 第九；第五。根据第一个空可知，此处填入基数词，答案为nine，第二个空填入序数词，答案为fifth，故选A。

【点评】考查了基数词与序数词的辨析，注意，区分两者。

30．Mr. King bought his son a new bike as a gift for his birthday.

A. nine

B. ninth

C. the ninth

D. the nine

【答案】 B

【解析】【分析】句意：Mr. King给他儿子买了一辆新自行车作为他第九个生日的礼物。第九，应用序数词ninth，且前面有物主代词his修饰，所以不能加定冠词the，故选B。【点评】考查序数词。注意序数词的用法。

31．How to read 85, 626 in English？

A. eighty-five thousands, six hundreds and twenty-six

B. eighty-five thousand, six hundred and twenty-six

C. fifty-eight thousand, six hundred and twenty-six

D. eighty-five thousands, six hundred and twenty-six

【答案】 B

【解析】【分析】句意：用英语怎样读85, 626？英语数学词的读法是：从右往左每三个数字是一组，用逗号隔开，从右往左第一个逗号读hundred，百位和十位间用and连接，所以读作eighty-five thousand, six hundred and twenty-six，故选B。

【点评】考查数学词的读法，注意平时识记其读法规则。

32．This cinema can offer seats to audience.

A. thousand

B. thousands

C. thousand of

D. thousands of

【答案】 D

【解析】【分析】句意：这家电影院能为观众提供数成千上万个座位。表示确定数量要用thousand 的单数，不能与介词of 连用；表示不确定数量时，要用复数形式，同时要在其后加介词of，thousands of，后接可数名词复数。