在英语学习中，基数词和序数词是非常重要的基础知识点。基数词用来表示数量，而序数词则用来表示顺序或位置。为了帮助大家更好地掌握这两类词汇，下面是一些专项练习题，大家可以试着完成。
一、填空题
1. There are ________ (five) apples on the table.
2. She is the ________ (third) person in line.
3. I have been waiting for you for ________ (ten) minutes.
4. He finished his homework in the ________ (fourth) place.
5. There are ________ (twenty) students in our class.
二、选择题
6. The teacher asked us to write down the ________ (first) five prime numbers.
- A) one, two, three, four, five
- B) first, second, third, fourth, fifth
- C) 1st, 2nd, 3rd, 4th, 5th
- D) one, two, three, four, five
7. My birthday is on the ________ (twelfth) day of December.
- A) twelfth
- B) twelve
- C) twenty-twelve
- D) 12th
8. There are ________ (fifteen) floors in this building.
- A) fifteen
- B) fifteenth
- C) fiveteen
- D) 15th
9. She came in ________ (eighth) place in the race.
- A) eight
- B) eighth
- C) 8th
- D) eighty
10. I bought ________ (three) books yesterday.
- A) three
- B) third
- C) threeth
- D) 3rd
三、翻译题
11. 翻译句子：He is the first person to arrive at the party.
- 他是在派对上第一个到达的人。
12. 翻译句子：There are seven days in a week.
- 一周有七天。
13. 翻译句子：She was born on the tenth of July.
- 她出生于七月十日。
14. 翻译句子：I have lived here for ten years.
- 我已经在这里住了十年了。
15. 翻译句子：This is the third time we've met.
- 这是我们第三次见面了。
通过这些练习题，希望大家能够更加熟练地运用基数词和序数词。记住，在使用时要注意它们的具体语境和功能。基数词用于表示数量，而序数词则用于表示顺序或位置。继续努力，加油！
