1. [2018年 青岛中考] It’s my daughter’s birthday today. She’s _________ years old.
A. eighteen                B. eighteenth             C. the eighteen           D. the eighteenth
【答案】A
【解析】考查基数词的运用。根据句意可知，今天是我女儿的生日，她18岁了。表达某人的岁数，应选择基数词，故选A
2. [2018重庆B卷中考] _________ people visited Hongyadong, Chongqing on May Day this year.  
A. Thousand              B. Thousands          C. Thousand of         D. Thousands of
【答案】D
【解析】考查Thousand表约数的用法。根据句意可知，今年五一劳动节那天，成千上万的人去了重庆洪亚东。Thousands of意为：成千上万的，许许多多的。
3.[2018绥化改编] This is my _________ day to be here.
A. a second               B. the second           C. second              D. two
【答案】C
【解析】考查序数词的应用及零冠词的用法。句意：这是我到这儿的第二天。此处表达第二天，需用序数词。序数词前面有形容词性物主代词时，不加冠词。
4.[2018连云港中考]—Have you heard about Zhangjiajie Glass Footbridge?
—Of course, it's built over a _________ canyon in the Zhangjiajie National Forest Park.
A. 300-meter-deep  B. 300-meters-deep      C. 300 meter deep   D. 300-meters deep
【答案】A
【解析】考查数词+名词+形容词构成的复合形容词作定语的用法。数词+名词+形容词构成的复合形容词作定语时，不管数词为几，名词一律用单数形式，且要加连字杠。
5.[2018黄冈中考]—Dad, about _________ of our classmates wear glasses.
—Oh, that's terrible. You all should take good care of your eyes.
A. three fourth      B. third fourth           C. third fourths    D. three quarters
【答案】C
【解析】考查分数的应用。句意：大约四分之三的学生戴眼镜。哦,那太糟糕了。你们都应该好好照顾自己的眼睛。分数的表达法：分子用基数词，分母用序数词；当分子超过1，分母变复数。
6. [2018东营中考] We asked 1,000 students from Hope Middle School about what kind of books they love. Here are the results.
 
According to the pie chart above, _________ of the students love science books.  
A. ten percent   B. fifteen percent        C. a quarter        D. half
【答案】D
【解析】考查百分数/分数的应用。句意：我们询问希望中学的1000名学生他们喜欢什么样的书，这是调查结果。根据圆形统计图表，________学生们喜欢科学书籍。ten percent意为：百分之十；fifteen percent意为：百分之十五； a quarter意为：四分之一；half意为：一半。通过观察图表可知，science books占到500人，占一半，选D。
7.[2018邵阳改编] My daughter is _________ years old. Today is her _________ birthday.
A. nine; nineth       B. nine; ninth           C. ninth; nine        D. nine; nine
【答案】B
【解析】考查基数词与序数词的应用。句意：我的女儿今年九岁，今天是她九岁生日。表达某人的几岁生日，需要序数词；表达某人的岁数，需要基数词。
8. [2018内蒙古通辽] This is __________ family photo, I took it on her mother’s ___________ birthday.
A. Mary; forty         B. Mary’s; fortieth        C. Mary; fortieth          D. Mary’s; forties
【答案】B
【解析】考查名词所有格及数词的应用。句意：这是Mary的家庭照片，我在她妈妈四十岁生日的时候拍摄的。Mary，女孩名，与照片是所有关系，应用名词所有格形式；第二个空表示的是“…岁生日”，应用序数词，选B。
9. [2018 湖北省咸宁市中考] — Nowadays China has about 25,000 kilometers of high-speed railways.
— That's ____________ of the world's total.
A. two third            B. two-third             C. two thirds             D. two three
【答案】C
【解析】考查分数的应用。句意：现在中国有大约25000公里的高速铁路。这是世界总量的三分之二。一般情况下，表示分数时，分子要用基数词，分母要用序数词，如果分子大于1，表示分母的序数词要用复数形式，如：two thirds 三分之二。故答案为C。