Unit 4 Numbers Exercise 2 for Reading(含答案)

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名称 Unit 4 Numbers Exercise 2 for Reading(含答案)
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更新时间 2022-09-03 06:56:57

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Exercise 2 for Reading (8A M1U1)
I. Answer the following questions according to the text. 10%
1. How did people write numbers in ancient times
2. How did people count
3. What kind of system of numbers do most of us use
4. Which did the Indians invent first, the 1 to 9 number system or the zero
5. Why was the invention of the ten numbers a very important invention
6. Why do people still use abacuses today
7. What can a modern electronic calculator do
8. How soon can a computer do a calculation that you could not do in your whole lifetime
9. What do some people call the brain
10. How long did Shakuntala’s brain take to find the answer
II. Translate the following phrases into English. 20%
1. 给出答案
2. ……中的一个重要部分
3. 完善1到9的数字系统
4. 人脑与电脑的对抗
5. 多少种语言
6. 至少
7. 以同一种方式
8. 用这十个数字
9. 最早的计算机器之一
10. 人脑
11. in ancient times
12. in many different ways
13. any number from the biggest to the smallest
14. calculate square roots
15. powerful calculating machines
16. in your whole lifetime
17. a more powerful calculator
18. this problem to solve
19. like lightning
20. use your own living computer
III. Write out the word or phrase according to the given meaning. 10%
1. d : find out how many times one number goes into a bigger number
2. e : very; more than usual
3. b : the part inside the head of a person or an animal that thinks and feels
4. c : find the answer by using mathematics
5. p : some but not all of something; one of the pieces of something
6. l : alive; not dead
7. i : something which is made for the first time
8. w : all
9. a : on the other side in a game, fight, etc.
10.l : sudden bright light in the sky when there is a storm
IV. Fill in the blanks with the words in their proper forms. 12%
1. Would you please pass me the _______________ on the desk (calculate )
2. This car has such a _______________ engine that it can goes at 350 miles per hour. (power )
3. Zero is one of the most important _______________ in the world. (invent )
4. Human brains are just like _______________ computers. (live )
5. Chinese first used _______________ in the world. (abacus )
6. Shakuntala’s brain can work fast and _______________. (accurate )
7. 9 is the _______________ number of the ten numbers. (nine)
8. It is ______________ to write big numbers and to calculate with the ten numbers. (easy )
9. We were all shocked when we saw the _______________ scenery in Jiuzhaigou. (amaze )
10. It took the students 40 minutes to finish the _______________ in the exams. (calculate )
11. An abacus was one of the first _______________ machines in the world. (calculate )
12. However, someone had to first program the computer with _______________. (instruct )
V. Choose the best answer. 15%
( ) 1. This computer doesn’t belong to _____. It’s _____.
A. her; him B. you; her C. mine; yours D. me; his
( ) 2. There is nothing important in the newspaper, _____
A. isn’t it B. is it C. isn’t there D. is there
( ) 3. About _____ of the teachers in our school _____ women teachers.
A. four-fifth; is B. four-fifth; are C. four-fifths; is D. four-fifths; are
( ) 4. We can work out the Physics problem _____ at least three ways.
A. with B. in C. for D. at
( ) 5. Computers can work out problems _____ than human beings.
A. quickly B. more quickly C. most quickly D. even quicker
( ) 6. Today many newly-produced mobile phones can take photos _____ cameras.
A. as B. for C. like D. with
( ) 7. Computers are _____ accurate _____ they can help people a lot.
A. too…to B. so…that C. such…that D. enough…that
( ) 8. People found it convenient _____ in the city after the underground built.
A. travel B. travelling C. to travel D. travelled
( ) 9. Computers can store _____ information.
A. a lot of B. a lot C. many D. a few
( ) 10. _____ of the new students should go to Room 911 to take the entrance examination.
A. Two hundreds B. Hundreds C. Two hundred D. Hundred
( ) 11. I found _____ difficult to finish the work in such a short time.
A. it B. its C. this D. that
( ) 12. Which is the smallest number of the following
A. Zero point four B. A quarter C. Two-thirds D. One-fifth
( ) 13. You _____ finish the exercise in class. You may do it after class.
A. don’t need B. need to C. don’t need to D. need
( ) 14. Some people like coffee with sugar or milk, _____ prefer black coffee.
A. others B. other C. the other D. the others
( ) 15. Alice is an artist from France _____ blond hair.
A. has B. with C. have D. of
VI. Rewrite the following sentences as required. 16%
1. The children have already finished washing the dishes. (改为否定句)
The children __________ finished washing the dishes __________.
2. Tom was very excited. He couldn’t help crying. (保持句意不变)
Tom was __________ excited __________ he couldn’t help crying.
3. The clever girl can work out the maths problem very quickly. (保持句意不变)
The clever girl can work out the maths problem in __________ __________.
4. Alice has lived in Australia since she went there with her parents. ( 对划线部分提问)
__________ __________ has Alice lived in Australia
5. He spent the whole night working on the difficult physics problem. (保持句意不变)
It ___________ him the whole night __________ work on the problem.
6. The boy is so young that he can’t go to school now. (保持句意不变)
The boy is __________ __________ to go to school now.
7. He has little homework to finish. (改为反义疑问句)
He has little homework to finish, __________ __________
8. 3 multiplied by 5 equals 15. ( 对划线部分提问)
__________ __________ does 3 multiplied by 5
VII. Read the passage and fill in the blanks with proper words: 13%
There have been many different number systems in the world. A long time ago the Babylonians (巴比伦人) c__________ in 60s and today computers count in 2s — using o__________ 1 and 0. We call this 2-number system the binary (二进制的) system. Most systems, however, count in 10s. This is because we have ten f__________.
The Romans used letters like I, V, X and C to count in 10s but these are not very e__________ to use. The numbers most people use today come from India. They might be i__________ by the Hindu (印度教徒) people there. In the Hindu system the place of number is i__________. For example, 832 is a d__________ number to 238 or 382. The Hindu system was also used by the Arabs (阿拉伯人), but we didn’t call them Arabic numbers at first. In about the 12th century an Italian called Leonardo Fibonacci w__________ a book about Arabic numbers, and people all over Europe began using these numbers and called them Arabic n__________.
We do not know who invented the decimal point, but we know that in 1582 a man c__________ Simon Stevin wrote a book about decimal point. The book was called The Tenth. B__________ we knew about the decimal point, we h__________ to use fractions like 1/2 or 3/4 when we talked a__________ numbers smaller than 1.
Exercise 2 for Reading (8AM2U4)
I. Answer the following questions according to the text:
1. In many different ways.
2. In tens
3. The system of numbers with from 1 to 9 and zero.
4. 1 to 9.
5. Because it made it easier to write big numbers and to calculate.
6. Because they are fast and accurate.
7. It can add, subtract, multiply and divide.
8. In a flash.
9. A living computer.
10. Fifty seconds.
II. Translate the following phrases into English:
1. in penfriends magazine
2. tell you something about myself
3. call me Jon
4. about one and a half meters tall
5. I live with my parents in the UK.
6. own a Chinese restaurant nearby
7. work in a college
8. He is at university in London.
9. during the holidays
10. walk to school
11. I am keen on sports.
12. enjoy skiing and playing table tennis
13. my best subject
14. My ambition is to be an architect.
15. enclose a photo of myself.
III. Write out the word or phrase according to the given meaning:
1. nearly 2. system 3. develop 4. powerful 5. amazing
6. living 7. invention 8. whole 9. against 10. lightning
IV. Fill in the blanks with the words in their proper forms:
1. calculator 2. powerful 3. inventions 4. living 5. abacuses
6. accurately 7. biggest 8. easier 9. amazing 10. calculations
11. calculating 12. instructions
V. Choose the best answer:
1- 5 D D D B B 6-10 C B C A C 11-15 A D C A B
VI. Rewrite the following sentences as required:
1. haven’t , yet 2. so, that 3. a , flash 4. How, long
5. took, to 6. too, young 7. does, he 8. How, much
VII. Read the passage and fill in the blanks with proper words:
1. counted 2. only 3. fingers 4. easy 5. invented 6. important
7. different 8. wrote 9. numbers 10. called 11. Before 12. had
13. about
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