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 questions.

Money

The ancestor of the monetary system is of course the barter system. A farmer could trade his produce for the fish obtained by a fisherman or the cloth produced by a weaver. Even today the barter system tends to come back into style in places suffering from social breakdown, or as an informal sideline activity in more harmonious lands. However, trying to reach agreement over the relative value of different things tends to be time-consuming and vexing, and so societies tended to converge towards a common medium of exchange. Pacific islanders used shells; Aztecs used cacao beans, the main ingredient of chocolate. Livestock was common among herding cultures; slaves were sometimes used, too, but they were much harder to control than cattle and so not as popular; and many cultures used salt, including the Romans for a time- hence, the modern term "salary". Incidentally, after World War II cigarettes were used as a medium of exchange in many countries then in very poor condition, and it is said that in Italy “penny candy” was commonly used as “small change” even into the 1970s.

The medium that gradually gained widespread acceptance was precious metals such as gold and silver. Coins are said to have been invented by the Lydians, a people of Asia Minor, sometime after 640 BC. They used stamped ingots of "electrum", a naturally occurring amalgam of silver and gold. The scheme was refined by King Croesus, ruler of Lydia from 560 to 546 BCE, who introduced coins of true gold. He is still identified with wealth in the expression "rich as Croesus". The introduction of coinage was a great boon for traders, simplifying transactions and allowing them to be conducted more smoothly over long distances.

[1] Coinage also helped support far-flung empires; the Roman Empire was built on silver and gold coins, as well as military victories. As the empire expanded, the expenditures of the state led to the debasement of the coins, beginning with an act of the Emperor Nero in 64 A.D. By the end of his reign, the silver content of Roman coins had shrunk by 10%. [2] Other emperors followed his example, and over 200 years from the start of the process, the content shrank to 5%. The coins’ buying power fell accordingly.

[3] Coins are still with us, though they are now little more than tokens made of non-precious metals. [4] Few countries still use silver or gold coins as anything other than collector's items.

Which of the following is NOT true of the barter system?

A. It was used before the invention of money

B. It involved trading one type of good for another

C. It was problematic because of disagreement over value

D. It has not been used since ancient times

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions.

Who talks more – men or women? Most people believe that women talk more. However, linguist Deborah Tannen, who has the studied the communication style of men and women, says that this is a stereotype. According to Tannen, women are more verbal – talk more – in private situations, where they use conversation as the “glue” to hold relationship together. But, she says, men talk more in public situations, where they use conversation to exchange information and gain status. Tannen points out that we can see these difference even in children. Little girls often play with one ‘best friend’ and their play includes a lot of conversation. Little boys often play games in groups, their play usually involves more doing than talking. In school, girls are often better at verbal skills, while boys are often better at mathematics.

A recent study at Emory University helps to shed light on the roots of this difference. Researchers studied conversation between children aged 3-6 and their parents. They found evidence that parents talk very differently to their sons than they do to their daughters. The startling conclusion was that parents use more language with their girls. Specifically, when parents talk with their daughters, they use more descriptive language and more details. There is also far more talk about emotions, especially with daughters than with sons.

Which of the following statement is TRUE about the passage?

A. Parents give more love to their daughters than to their sons

B. Boys don’t like to be with their parents as much as girls do

C. Parents use more language to talk with their daughters

D. Boys don’t like showing emotions

Read the folBrave William Baldock, who is six years old, is a hero after helping his mother when she fell downstairs. William quickly rang for an ambulance when he discovered his mother had broken her leg. In spite of being frightened, he (23) ________ the emergency services what had happened and answered all the questions they asked him. He also telephoned his father at work, and then his grandmother, to explain what he had (24) _________. While waiting for these people to come, William looked after his 18-month-old sister. When ambulance man Steve Lyn went to the house, he was amazed. 'It's great that a young boy of six knew the right number to dial, and was able to give us the correct information. (25) ________ of William's quick thinking, we were able to (26) ________ there immediately." Mrs. Baldock left hospital yesterday, very (27) ________ to both William and the ambulance service.

Điền vào ô 26

A. manage

B. get

C. reach

D. find

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions.

Who talks more – men or women? Most people believe that women talk more. However, linguist Deborah Tannen, who has the studied the communication style of men and women, says that this is a stereotype. According to Tannen, women are more verbal – talk more – in private situations, where they use conversation as the “glue” to hold relationship together. But, she says, men talk more in public situations, where they use conversation to exchange information and gain status. Tannen points out that we can see these difference even in children. Little girls often play with one ‘best friend’ and their play includes a lot of conversation. Little boys often play games in groups, their play usually involves more doing than talking. In school, girls are often better at verbal skills, while boys are often better at mathematics.

A recent study at Emory University helps to shed light on the roots of this difference. Researchers studied conversation between children aged 3-6 and their parents. They found evidence that parents talk very differently to their sons than they do to their daughters. The startling conclusion was that parents use more language with their girls. Specifically, when parents talk with their daughters, they use more descriptive language and more details. There is also far more talk about emotions, especially with daughters than with sons.

Which word can best replace the word “startling”?

A. Beginning

B. annoying

C. surprising

D. interesting 

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions.

Who talks more – men or women? Most people believe that women talk more. However, linguist Deborah Tannen, who has the studied the communication style of men and women, says that this is a stereotype. According to Tannen, women are more verbal – talk more – in private situations, where they use conversation as the “glue” to hold relationship together. But, she says, men talk more in public situations, where they use conversation to exchange information and gain status. Tannen points out that we can see these difference even in children. Little girls often play with one ‘best friend’ and their play includes a lot of conversation. Little boys often play games in groups, their play usually involves more doing than talking. In school, girls are often better at verbal skills, while boys are often better at mathematics.

A recent study at Emory University helps to shed light on the roots of this difference. Researchers studied conversation between children aged 3-6 and their parents. They found evidence that parents talk very differently to their sons than they do to their daughters. The startling conclusion was that parents use more language with their girls. Specifically, when parents talk with their daughters, they use more descriptive language and more details. There is also far more talk about emotions, especially with daughters than with sons.

Which word is similar in meaning to the word “glue”?

A. Games

B. sticky substance

C. rope

D. means 

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 questions.

A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident.

In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca -Cola, the world - famous carbonated soft drink.

Scientists have also made crucial discoveries by accident when they were conducting experiments. In 1928, Alexander Fleming discovered penicillin, an antibiotic, in this manner. He discovered some mold growing in a dish with some bacteria. He noticed that the bacteria seemed to be avoiding the mold. When he investigated further, he determined some of the many useful properties of penicillin, which has saved millions of lives over the past few decades. Likewise, in 1946, scientist Percy Spencer was conducting an experiment with microwaves. He had a candy bar in his pocket, and he noticed that it suddenly melted. He investigated and learned the reason why that had happened. Soon afterward, he built a device that could utilize microwaves to heat food. the microwave oven.

What does the author imply about penicillin?

A. It is an invaluable medical supply

B. Mold combines with bacteria to make it

C. Some people are not affected by it

D. Doctors seldom use it nowadays

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions from 28 to 34.

Stars have been significant features in the design of many United States coins and their number has varied from one to forty-eight stars. Most of the coins issued from about 1799 to the early years of the twentieth century bore thirteen stars representing the thirteen original colonies.

Curiously enough, the first American silver coins, issued in 1794, had fifteen stars because by that time Vermont and Kentucky has joined the Union. At that time it was apparently the intention of mint officials to add a star for each new state. Following the admission of Tennessee in 1796, for example, some varieties of half dimes, dimes, and halfdollars were produced with sixteen stars.

As more states were admitted to the Union, however, it quickly became apparent that this scheme would not prove practical and the coins from A798 on were issued with only thirteen stars-one for each of the original colonies. Due to an error at the mint, one variety of the A828 half cent was issued with only twelve stars. There is also a variety of the large cent with only A2 stars, but this is the result of a die break and is not a true error.

Why was a coin produced in 1828 with only twelve stars?

A. There was a change in design policy

B. There were twelve states at the time

C. The mint made a mistake

D. Tennessee had left the Union

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 questions.

          Southern Thailand was hit Thursday by the most severe haze from forest fires in Indonesia, forcing all schools in a province to close and disrupting flights in a popular tourist area, officially said.
The haze that has shrouded parts of Malaysia and Singapore for nearly two months reached hazardous levels in the southern Thai city of Songkhla, with the pollution index hitting a record-high reading of 365. A reading of 101-200 is unhealthy, 201-300 is very unhealthy and above 300 is hazardous.
“This is a crisis,” said Halem Jemarican, head of the Southern Environment Office. He said the pollution index in southern Thailand has never exceeded 300 before.
          Halem said his office has worked with other authorities to have all schools in Songkhla province send students home and all outdoor sports stadiums to close temporarily. Warnings have been issued to vulnerable people such as children, the elderly and people with illnesses not to go out of their homes.
“The wind speed is very low this year in the south, causing haze to stay in our skies longer,” Halem said by telephone.
          An airport official in Hat Yai, a popular tourist area, said three flights bound for Bangkok were delayed Thursday morning because of the haze. A flight from Bangkok to Hat Yai was diverted to Surat Thani on Wednesday evening. The official declined to be identified because of working rules.
        Local media reported that cloud seeding has been discussed as a way to dispel the haze in southern Thailand, which is hundreds of kilometers (miles) from the forest fires in Indonesia's Sumatra island.
         Southern Thailand boasts tropical beaches popular among tourists in Surat Thani and Phuket, two of the seven provinces suffering from the haze.

Which statement is NOT true, according to the passage?

A. The pollution index in southern Thailand used to exceed 300.

B. Seven provinces in Thailand suffered from the haze.

C. The haze reached a hazardous level in the city of Songkhla.

D. The local authorities warned the citizens against going out.

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 questions from 43 to 50.

          Carbon dating can be used to estimate the age of any organic natural material; it has been used successfully in archeology to determine the age of ancient artifacts or fossils as well as in a variety of other fields. The principle underlying the use of carbon dating is that carbon is a part of all living things on Earth. Since a radioactive substance such as carbon-14 has a known half-life, the amount of carbon-14 remaining in an object can be used to date that object.

          Carbon-14 has a half-life of 5,570 years, which means that after that number of years, half of the carbon- 14 atoms have decayed into nitrogen-14. It is the ratio of carbon-14 in that substance that indicates the age of the substance. If, for example, in a particular sample the amount of carbon-14 is roughly equivalent to the amount of nitrogen-14, this indicates that around half of the carbon-14 has decayed into nitrogen-14, and the sample is approximately 5,570 years old. 

          Carbon dating cannot be used effectively in dating objects that are older than 80,000 years. When objects are that old, much of the carbon-14 has already decayed into nitrogen-14, and the molecule amount that is left doesn’t provide a reliable measurement of age. In the case of older objects, other age-dating methods are available, methods which use radioactive atoms with longer half-lives than carbon has.

The word “underlying” could best be replaced by______.

A. below

B. requiring

C. serving as a basis for

D. being studied through