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沪教版2024年八年级英语上册Unit 2 Amazing numbers单元测试卷
笔试部分（100分）
Ⅰ. 词汇运用（每小题1分，共15分）
A. 根据首字母或中文提示写单词
1. The ______ (人口) of Beijing is over 20 million.
2. There are ______ (百) of kinds of flowers in this park.
3. The number 6 is thought to be l______ in many Chinese families.
4. We need to use numbers in almost every part of our d______ life.
5. She can c______ from 1 to 1000 without making a mistake.
B. 用所给词的适当形式填空
6. The number of students in our grade ______ (be) about 800.
7. It's ______ (amaze) that this old man can remember all his family's birthdays.
8. They spent three hours ______ (solve) the number - related problems.
9. It's helpful ______ (learn) about the history of numbers.
10. He is good at ______ (memorize) long numbers quickly.
Ⅱ. 完成句子（每空1分，共15分）
11. 那个小镇的人口是多少？
______ the ______ of that small town
12. 博物馆里有数千件古老的物品。
There are ______ ______ old things in the museum.
13. 十乘五等于五十。
Ten ______ five ______ fifty.
14. 数字在科学研究中起着重要作用。
Numbers ______ an important ______ in scientific research.
15. 她能流利地用英语从1数到200。
She can ______ ______ 200 in English fluently.
Ⅲ. 单项选择（每小题1分，共15分）
16. —______ is the population of your country —About 1.4 billion.
A. How much B. How many C. What D. Which
17. The number of trees in this forest ______ getting larger every year.
A. is B. are C. have D. has
18. There are ______ birds flying in the sky.
A. four hundreds B. four hundred of C. hundred of D. hundreds of
19. Eight ______ two is four.
A. plus B. minus C. times D. divided by
20. He is ______ 12 - year - old student who loves studying number rules.
A. a B. an C. the D. /
21. We have ______ time to prepare for the exam, so don't worry.
A. too much B. too many C. much too D. many too
22. This building has ______ floors, and my uncle lives on the ______ floor.
A. forty; fourteenth B. forty; fourteen C. fortieth; fourteenth D. fortieth; fourteen
23. —What's seventeen ______ six —It's eleven.
A. plus B. minus C. times D. divided by
24. They can talk about numbers ______ three different languages.
A. with B. in C. by D. on
25. The number of people joining the club ______ over 500 now.
A. is B. are C. be D. were
Ⅳ. 完形填空（每小题1分，共10分）
Numbers are more amazing than we think. They are not just tools for counting but carry rich meanings.
In ancient times, people didn't have the numbers we use today. They 26______ on stones or sticks to record things. Later, different civilizations created their own number systems. The Roman number system, for example, used letters like I, V, and X to represent numbers. But it was not easy to do calculations with it.
The Hindu - Arabic number system we use now is much more convenient. It has digits from 0 to 9, and 27______ makes addition, subtraction, and other operations simple. The invention of the number 0 was a great step in the history of numbers. Without 0, many complex calculations would be 28______.
Numbers also have cultural meanings. In some cultures, the number 7 is linked to good luck, while in others, it has no special meaning. The number 13, however, is often seen as unlucky in Western countries.
Learning about numbers can help us understand the world better. It's 29______ to find that numbers are everywhere—from the time we wake up to the money we spend. So, let's take time to explore the 30______ world of numbers.
26. A. depended B. lived C. worked D. called
27. A. it B. he C. she D. they
28. A. easy B. possible C. difficult D. interesting
29. A. boring B. surprising C. tiring D. sad
30. A. boring B. common C. amazing D. usual
Ⅴ. 阅读理解（每小题2分，共20分）
A
Numbers have a long history. Early humans used body parts like fingers to count. As time went on, they needed better ways to record larger numbers.
The ancient Egyptians used hieroglyphs (象形文字) to represent numbers. For example, a single stroke stood for 1, and a horseshoe shape stood for 10. The ancient Greeks used letters of their alphabet to count. But these systems were not very efficient for doing math.
The Hindu - Arabic number system, which was developed in India and later brought to Europe by Arabs, changed everything. It has 10 digits (0 - 9) and uses place value—this means the value of a digit depends on its position in a number. For example, the digit 5 in 50 is worth 5 tens, while in 500, it's worth 5 hundreds. This system made calculations much easier.
31. How did early humans count at first
A. By using hieroglyphs. B. By using body parts like fingers.
C. By using letters. D. By using the Hindu - Arabic system.
32. What did the ancient Egyptians use to represent the number 10
A. A single stroke. B. A letter. C. A horseshoe shape. D. A digit.
33. What makes the Hindu - Arabic number system efficient
A. It uses hieroglyphs. B. It uses letters.
C. It has 10 digits and place value. D. It was developed in Europe.
B
Do you know some interesting number facts Let's take a look!
- A "googolplex" is an extremely large number. It's 1 followed by a googol zeros, and a googol is 1 followed by 100 zeros. No one has ever written down a full googolplex because it's too big!
- The number of petals on many flowers follows a special pattern called the Fibonacci sequence (斐波那契数列). For example, lilies have 3 petals, buttercups have 5, and daisies often have 34 or 55 petals.
- The number 1 is unique—it's the only number that when multiplied by any number, leaves that number unchanged. For example, 5 × 1 = 5.
（ ）34. What is a googol
A. 1 followed by 10 zeros. B. 1 followed by 100 zeros.
C. 1 followed by a googolplex zeros. D. 1 followed by 1000 zeros.
（ ）35. Which flower usually has 5 petals according to the passage
A. Lilies. B. Daisies. C. Buttercups. D. Roses.
（ ）36. What's special about the number 1
A. It's the largest number. B. It's the smallest number.
C. Multiplying any number by 1 doesn't change the number. D. It has no special features.
Ⅵ. 短文填空（每空1分，共10分）
阅读短文，从方框中选择合适的单词并用其适当形式填空，使短文完整、通顺。每词限用一次。
Numbers are very 37________ in our 38________ lives. We 39________them to tell time, buy things, and even plan our schedules. There are many 40_______ facts about numbers. Different 41________ have different views on numbers. For example, the 42________ 8 has a positive 43_______ in Chinese culture because it sounds like "prosperity". We can also 44________ numbers to create beautiful patterns in art. Without numbers, our 45________ would be much more difficult. We should appreciate how numbers make our world more organized and 46________.
Ⅶ. 句型转换（每小题1分，共5分）
47. The number of apples in the basket is 30.（对划线部分提问）
______ the number of apples in the basket
48. There are five hundred books in the reading room.（改为同义句）
There are ______ ______ books in the reading room.
49. She can count from 1 to 150 in English.（改为否定句）
She ______ ______ from 1 to 150 in English.
50. Numbers are important in our daily life.（改为感叹句）
______ ______ numbers are in our daily life!
51. He spent an hour practicing number calculations.（改为同义句）
It ______ him an hour ______ ______ number calculations.
Ⅷ. 句子匹配（每小题2分，共10分）
从Ⅱ栏中选出Ⅰ栏句子对应的答语，将序号填在括号内。
Ⅰ Ⅱ
（ ）52. What's the population of your city A. By using number cards.
（ ）53. How do you learn to count quickly B. It's about 5 million.
（ ）54. Why are numbers important C. Yes, I can.
（ ）55. Can you count from 1 to 200 in French D. Because we use them in many parts of life.
（ ）56. What's ten plus five E. It's fifteen.
参考答案
Ⅰ. 词汇运用
A. 1. population 2. hundreds 3. lucky 4. daily 5. count
B. 6. is 7. amazing 8. solving 9. to learn 10. memorizing
Ⅱ. 完成句子
11. What's; population 12. thousands of 13. times; is 14. play; role 15. count from 1 to
Ⅲ. 单项选择
16. C 17. A 18. D 19. D 20. B 21. A 22. A 23. B 24. B 25. A
Ⅳ. 完形填空
26. A 27. A 28. C 29. B 30. C
Ⅴ. 阅读理解
31. B 32. C 33. C 34. B 35. C 36. C
Ⅵ. 短文填空
37. important 38. daily 39. use 40. amazing 41. cultures 42. number 43. meaning 44. count 45. life 46. amazing
Ⅶ. 句型转换
47. What's 48. five hundred 49. can't count 50. How important 51. took; to practice
Ⅷ. 句子匹配
52. B 53. A 54. D 55. C 56. E

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