The document is a passage summarizing the history and development of barcodes. It discusses how the original one-dimensional barcode stored limited information, but barcodes have since evolved to hold more data by adding a second dimension. The two-dimensional barcode allows for over 1,100 bytes of customizable information to be encoded, including pictures, text, and encryption. It also has built-in redundancy so the code can still be read even if damaged. The new technology dramatically reduces errors and costs compared to the single dimensional barcode.

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BỘ ĐỀ MEGABOOK SỐ 3
Đề thi thử đại học lần V (2013) – Trường chuyên Đại học SPHN
Thời gian làm bài: 90 phút
ĐỀ THI GỒM 80 CÂU (TỪ CÂU HỎI SỐ 1 ĐẾN CÂU HỎI SỐ 80) DÀNH CHO TẤT CẢ CÁC THÍ
SINH
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part is
pronounced differently from that of the others in each of the following questions.
Question 1. A. concenarian B. scary C. stagnant D. bared
Question 2. A. encouraged B. stretched C. introduced D. increased
Question 3. A. patients B. extends C. hopes D. likes
Question 4. A. goal B. host C. soccer D. trophy
Question 5. A. tour B. course C. court D. pour
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to complete each of the
following questions or the answer that is closest in meaning to the underlined part.
Question 6. Efforts to revive the large mammal were fruitless.
A. encourage B. eliminate B. resuscitate D.
move
Question 7. When archeologist discovered the ruins of the Olympic Stadium, interest in the Games .
A. was renewed B. were renewed C. they are renewed D. renewed
Question 8. The Olympic Games are held every four year in a selected country, and to athletes of all
nations.
A. they are opened B. are opened C. they are open D. it is open
Question 9. Some fish distortions of electrical field through special receptors.
A. sense B. are sensing C. are sensed D. senses
Question 10. Pumpkin seeds, protein and iron, are a popular snack.
A. that B. provide C. which D. which provide
Question 11. Not only in the field of psychology but animal behavior is examined as
well.
A. human behavior is studied C. is studied human behavior
B. is human behavior studied D human behavior
Question 12. He won t be at home at this time of the morning - to work.
A. He’ll have gone
B... He’ll go
C. He’ll have been going D. is going
Question 13. We were going to go by bus but in the end we because Simon gave us a lift.
A. Needn’t B. didn’t need to C. needn’t have D. needed not to
Question 14. Gabrielle and Jo decided they d not go camping again this year.
A. soon B. prefer C. rather D. like
Question 15. A: Oh dear! Pete doesn’t look very happy
B: No, you’re right. He look like his temper.
A. he’s on the verge of losing C. he was losing
B. he’s to lose D. he would be losing
Question 16. A: Have you watched series 3 of Happy Families yet?
B: no, but I have the programmes on DVD and when I see you next
them all.
A. I’ll watch B. I’ll be watching
C. I’ll have watching D. have watched
Question 17. Are there other people doing the same course as you?
A. many B. much C. a lot D. lots of
Mã đề số: 451

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Question 18. My room was freezing when I woke up because the heating had turned off during the
night.
A. it B. its C. itself D. ø
Question 19. After a number of major , the team recovered and are now doing well.
A. crisis B. crisises C. crisia D.
ctises Question 20. Lorraine s friends all fun of her new
hairstyle.
A. made B. took C. did D. put
Question 21. If you take into stopping for lunch on the way, the journey should take about four
hours.
A. thought B. allowance C. reminder D. account
Question 22. The book I m reading at the moment is absolutely .
A. interesting B. terrifying C. funny D. good
Question 23. The company’s owner, Eduardo Sanchez, inherited it from his rather.
A. alive B. present C. live D. lived
Question 24. Her plan to the South Pole didn’t really work – she had to return to camp after two
days.
A. to travel B. travel C. travelling D. travelled
Question 25. An enormous dog sleeping on the floor in the corner of the kitchen.
A. laid B. lay C. lied D. lain Ques-
tion 26. You find so interesting about chemistry? I think it’s really dull!
A. Why is it that B. How come C. What is it that D. why
Question 27. Scarcely down to watch TV when the phone rang.
A. I had sat B. did I sit C. was I sitting D. had I sat
Question 28. When we were in Buxton, we paid a to the old spa.
A. claim B. search C. visit D. trib-
ute Question 29. When you us a present.
A. come back, bring B. go back, bring
C. go back, take D. come back,
take
Question 30. A: We had a lovely day. − B: .
A. Neither have we B. So did we C. We did so D. So have
we
Question 31. The problem that led to the failure of the experiment caused by bad weather.
A. may be B. has been C. may have D. may have been
Question 32. A: .
B: He doesn’t look very well.
A. What is he like? B. What does he look?
C. How well is he? D. How is he?
Question 33. The goalkeeper can also be ejected for twenty seconds if a major foul is committed.
A. advanced B. sprinted C. player D. excluded
Question 34. A: Would you mind if I shut the window?
B: .
A. Yes, please shut B. Yes, I wouldn’t mind
C. No, please do D. No, don t shut it
Question 35. The thief wore gloves so that his fingerprints didn’t .
A. give him in B. give him away C. give him out D. give him
up
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct
answer to each of the question from 36 to 45.
Line Aspirin’s origins go back at least as early as 1785. In that year, Englishman Edward Stone noticed a
distinctive bitter flavor in the bark of the willow tree. To Stone, this particular bark seemed to have much

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and to treat malaria. Stone decided to test the effectiveness of the willow
bark. He obtained some pulverized it into tiny pieces, and conducted
5 experiments on its properties. His tests demonstrated that this pulverized
willow bark was effective both in reducing high temperatures and in
relieving aches and pains. In 1763, Stone presented his finding to the British
Royal Society.
Several decades later, further studies on the medicinal value of the willow
10 bark were being conducted by two Italian scientists. These chemists,
Brugnatelli and Fontana, determined that the active chemical that was
responsible for the medicinal characteristics in the willow bark was the
chemical salicin, which is the active ingredient of today’s aspirin.
The name “aspirin” is the trade, name of the drug based on the chemical
15 salicin, properly known as acetylsalicylic acid. The trade name “aspirin”
was invented for the drug in the 1890s by the Bayer Drug Company in
Germany. The first bottles of aspirin actually went on sale to the public just
prior to the turn of the century, in 1899.
Question 36. According to the passage, aspirin originated .
A. no later than 1758 C. definitely sometime in 1758
B. sometime after 1758 D. no earlier than 1758
Question 37. It can be inferred from the passage that Peruvian Bark .
A. caused fevers.
B. was infective in treating malaria.
C. was described to the British Royal Society by
Stone.
D. was in use prior to aspirin.
Question 38. The pronoun “it” in line 5 refer to
.
A. malaria C. effectiveness
B. willow D. the British Royal Society
Question 39. The word “properties” in line 6 could best be replaced by .
A. ownership B. body C. characteristics D. materials
Question 40. What did the willow bark look like after Stone prepared it for his experiments?
A. It was in large chunks. C. It was a rough powder.
B. It was a thick liquid. D. It was in strips of bark.
Question 41. The Italian chemists mentioned in the passage most probably conducted their studies on willow
bark .
A. In the 1750s B. in the 1760s
C. in the 1770s D. in the 1780s
Question 42. What is true about Brugnatelli angFontana?
A. They were from Italy.
B. They added a chemical to the willow bark.
C. They conducted studies on the willow bark.
D. They were medical doctors.
Question 43. The expression “prior to” in line 16 could best be replaced by .
A. At B. before C. during D. after
Question 44. The word “turn” in line 16 could best be replaced by .
A. Spin B. corner C. change D. reversal
Question 45. Where in the passage does the author name the scientific compound that makes up aspirin?
A. Lines 2-4 B. Lines 7 C. Lines 8-9 D. Lines 13-14
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct
word for each of the blanks from 46 to 55.
Do it yourself

4. 4
What do you do when something breaks down? Are you the kind of person who knows how things (46)
? Or do you prefer to have them (47) by an expert? Personally, when I use a (48)
I always hit my finger, and I can never (49) anything with my screwdiver a because I can never find it.
Despite having all the wrong (50) , I recently decided to take my bike to pieces and fix it. I had run out
of money as usual, and as I use my bike for getting to college, I had no choice. It was making a terrible noise,
and the front type was (52) . I had a few tools but I didn’t have any (53) parts. I
managed to (54) the wheel and take it off, but then I lost my (55), and couldn’t put the wheel
back on properly. At least I am taking more exercise, as I now have to walk to college.
Question 46. A. do
Question 47. A. repaired
Question 48. A. drill
B. make
B. out
B. scissors
C. fix
C. sometimes
C. hammer
D. work
D. operated
D. spade
Question 49. A. drive B. unscrew C. cut D. unwind
Question 50. A. equipment B. contents C. instruments D. gadgets
Question 51. A. technician B. engineer C. machine D. mechanic
Question 52. A. flat B. empty C. over D. bad
Question 53. A. spare B. emergency C. renew D. repair
Question 54. A. remove B. smooth C. fill D. undo
Question 55. A. saw B. plug C. spanner D. file
Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction. Ques-
tion 56. When radio programs became popular, approximately around 1925, many people stopped
attending movies.
A. When B. became C. approximately D. attending
Question 57. The pioneers raised corn as their chief crop because they kept well in any season and could be
used in many ways.
A. raised B. their C. they D. could be
Question 58. National forests including land for animal grazing, as well wilderness areas with scenic
mountain and lakes.
A. including B. animal C. wilderness D. scenic
Question 59. Pigeons, like many migratory birds, read the positions of the sun and stars in order to orient
them.
A. like B. read C. the sun and stars D. them
Question 60. Compact discs, which appeared on the market in early 1980s, produce sound of better quality
than those of standard phonograph records.
A. which B. produce C. those D. phonograph
Mark the letter A, B, C, or D on your answer sheet to indicate the best way to complete each of the
following sentences.
Question 61. Amongs sea horses, carries and hatches the eggs in a special breeding pouch.
A. it is the male that B. the male it
C. it is the male D. the male who
Question 62. Will be increasingly used as a source of petrochemical when oil begins to run out.
A. No matter coal B. No doubt coal C. If coal D. That coal
Question 63. Affect a person’s body has long been known by doctors.
A. That emotional disturbances C. As emotional disturbances
B. Emotional disturbances D. If emotional disturbances Ques-
tion 64. , and they are separated from one another by vast distances.
A. Being millions of galaxies C. Of the millions of galaxies
B. Are millions of galaxies D. there are millions of galax-
ies Question 65. We wouldn’t have missed the train
A. if we weren’t using an out-of-date timetable.
B. had we not been using an out-of-date timetable.
C. unless we used an out-of-date timetable.

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D. would we not be using an out-of-date timetable.
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct
answer to each of the question from 66 to 75.
The ubiquitous bar code, developed more than twenty years ago, is not a stagnant product. On the
contrary, the technology has been improved so that it can be used more efficiently. Much less expensive than a
computer chip, the bar code can hold more information than it has in the past by adding a second dimension to
the structure.
The bar code consists of a series of parallel vertical bars or lines of two different widths, although
sometimes widths are used, printed in black on a white background. Barcodes are used for entering data into a
computer system. The bars represent the binary digits 0 and 1, just like basic computer language, and
sequences of these digits can indicate the numbers from 0 to 9, which can then be read by an optical laser
scanner and processed by a digital computer. Arabic numbers appear below the code.
The traditional bar code has been used to monitor skiers at ski lifts and to determine price and perform
inventory control on groceries, drugs, medical supplies, manufactured parts, and library books to name a few.
The bar code used on grocery products, introduced in the 1970s, is called a universal product code (or UPC)
and assign each type of food or grocery product a unique code. The five digits on the left are assigned to a
particular manufacturer or maker and the five digits on the right are used by that manufacturer to identify a
specific type or make of product. Traditional single dimension bar codes are not readily customizable because
there is little extra space.
The two-dimensional bar code, with an information density of 1,100 bytes, allows a considerably greater amount
of information to be coded than does the traditional bar code, including customized information. [A] It also has built-
in redundancy, meaning that the identical information is duplicated on the same code [B] Therefore, if the code is
damaged, it can still be read. [C] The technology even allows pictures or text to be contained within the code, as well
as barcode encryption. [D] The new technology dramatically reduces the errors of the single dimensional bar code and
reduces costs that some companies have reported in the past.
Question 66. The word ubiquitous is the first sentence is closest in meaning to .
A. outdated B. ever-present C. new D. com-
plicated Question 67. The word stagnant in the first sentence is closest in
meaning to
A. ever-changing B. useful C. stale D. useless
Question 68. The author implies that the bat code
A. has only recently become popular.
B. will never change.
C. is not useful.
D. has existed in one-dimensional form for years.
Question 69. The author’s main purpose is to describe
A. the current technology and newest innovation of bar codes
B. problems with the bar code
C. the UPC in grocery stores
D. why the bar code is no longer viable
Question 70. Where in the final paragraph ([A], [B], [C], or [D]) could the following sentence be logically
placed?
Thus, the manufacturer is able to add additional information on the bar code that it finds useful for its own
tracking purposes.
A. [A]
B. [B] C. [C] D. [D]
Question 71. Which of the following can be a UPC symbol?
A. A code with five digits on the left, five on the right, two different widths, and one number under each.
B. A code with six digits on the left, four on the right, two different widths, and one roman numeral under
each.
C. A code with five digits on the left, five digits on the right, five or six different widths, and one number
under each.

6. 6
D. A code with five digits on the left, five digits on the right, reverse form (white text on black background),
and no numbers under.
Question 72. AUPC is a type of .
A. computer program B. bar code C. grocery item D. scanner
Question 73. The word widths in the second paragraph refers to .
A. its size B. its direction C. its location D. its content
Question 74. In the past, a common use of the bar code was .
A. to encrypt pictures
B.to keep track of products stocked and sold
C. to act as a computer
D. to hide text
Question 74. The word considerably in the final paragraph is closest in meaning to .
A. slightly B. technologically C. interestingly D. far
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to the
sentence(s) given.
Question 76. He might have been joking when he said he was planning to leave
home.
A. The idea of leaving home probably amused him a great deal.
B. I don’t know if he was serious when he expressed his intention of leaving home.
C. He could have made s joke about the situation when he left home.
D. He said he was going to leave home, but it turned out to be only a joke.
Question 77. Jane would trust her mother, but not her sister, with anything.
A. Although Jane finds her mother completely trustworthy, she does not feel the same about her
sister.
B. Jane felt she could trust neither her mother nor her sister with anything.
C. There was nothing that Jane would not trust her mother, as well as her sister, with.
D. Neither Jane nor her sister feel that they can trust their mother with everything.
Question 78. “Let’s organize a sponsored cycle race,” said the children to the teacher.
A. The children suggested to organize a sponsored cycle race.
B. The children suggested organizing a sponsored cycle race.
C. The children suggested they must organize a sponsored cycle race.
D. The children suggested the teacher to organize a sponsored cycle race.
Question 79. The only thing that makes this job worthwhile is the money.
A. If I didn’t have money, this job wouldn’t be worthwhile.
B. Were it not for the money, I wouldn’t do this job.
C. If I didn’t have money, I couldn’t do this job.
D. This job cannot be finished if there isn’t the money.
Question 80. “No, I’m sorry, I don’t work on Saturday. Definitely not!”
A. Ellen refused to work on Saturday.
B. Ellen refused not working on Saturday.
C. Ellen wished she could not work on Saturday.
D. Ellen felt sorry not to work on Saturday.