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The Particle that Started the Big Bang
In 2013, the Nobel Prize for Physics was awarded to Francois Englert and Peter W. Higgs for their discovery of a particle that is vital to our understanding of the universe. Although its official name is the Higgs boson, many refer to it as the God particle, because it’s considered to be the building block of the universe. Many believe that the Higgs boson may be the cause for the Big Bang explosion which led to the creation of the universe. In the 1960s, Higgs came up with the concept that particles had no mass when the universe started. In a split-second, however, it came into contact with something that gave it mass. This, Higgs theorized, was the Higgs boson. Many scientists initially laughed at the idea, but in the upcoming years, Higgs along with Englert and several of their peers continued to work on these concepts. Their ideas would eventually help lead the way to the discovery of the Higgs boson decades later. The search for the Higgs boson certainly didn’t come up cheap, as it cost nearly $10 billion to build the machinery necessary to perform the tests to find it. Yet nearly every physicist would agree that it was worth it, as the Higgs boson has already been labeled as one of the most important discoveries in particle physics. The finding is also a huge boost for physics in general because it proves that the Standard Model of Physics which researchers have been using for years is correct. The Higgs was the last remaining question mark as all of the other particles and elements had been found. Still, many ordinary people may question how such a discovery affects their lives at all. Although quantum mechanics may seem weird, it has actually led to several important technological breakthroughs over the past century. These findings have led to laser and X-ray technologies that work in the real world. There is still much to be learned with further observation of the Higgs boson in action. Scientists hope to learn more about dark matter, a strange substance that constitutes 25 percent of the mass of the universe. The research could also lead to some other technologies as well.
7. It can be inferred from the sentence “The Higgs was the last remaining question mark” in paragraph 2 that ________

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Although only a small percentage of the electromagnetic radiation that is emitted by the Sun is ultraviolet (UV) radiation, the amount that is emitted would be enough to cause severe damage to most forms of life on Earth were it all to reach the surface of the Earth. Fortunately, all of the Sun’s ultraviolet radiation does not reach the Earth because of a layer of oxygen, called the ozone layer encircling the Earth in the stratosphere at an altitude of about 15 miles above the Earth. The ozone layer absorbs much of the Sun’s ultraviolet radiation and prevents it from reaching the Earth. Ozone is a form of oxygen in which each molecule consists of three atoms (O3) instead of the two atoms (O2) usually found in an oxygen molecule. Ozone forms in the stratosphere in a process that is initiated by ultraviolet radiation from the Sun. UV radiation from the Sun splits oxygen molecules with two atoms into free oxygen atoms, and each of these unattached oxygen atoms then joins up with an oxygen molecule to form ozone. UV radiation is also capable of splitting up ozone molecules; thus, ozone is constantly forming, splitting, and reforming in the stratosphere. When UV radiation is absorbed during the process of ozone formation and reformation, it is unable to reach Earth and cause damage there. Recently, however, the ozone layer over parts of the Earth has been diminishing. Chief among the culprits in the case of the disappearing ozone, those that are really responsible, are the chlorofluorocarbons (CFCs). CFCs meander up from Earth into the stratosphere, where they break down and release chlorine. The released chlorine reacts with ozone in the stratosphere to form chlorine monoxide (ClO) and oxygen (O2). The chlorine then becomes free to go through the cycle over and over again. One chlorine atom can, in fact, destroy hundreds of thousands of ozone molecules in this repetitious cycle, and the effects of this destructive process are now becoming evident.
5. The word "free" in paragraph 2 could best be replaced by: 

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William Sydney Porter (1862-1910), who wrote under the pseudonym of O. Henry, was born in North Carolina. His only formal education was to attend his Aunt Lina’s school until the age of fifteen, where he developed his lifelong love of books. By 1881 he was a licensed pharmacist. However, within a year, on the recommendation of a medical colleague of his Father’s, Porter moved to La Salle County in Texas for two years herding sheep. During this time, Webster’s Unabridged Dictionary was his constant companion, and Porter gained a knowledge of ranch life that he later incorporated into many of his short stories. He then moved to Austin for three years, and during this time the first recorded use of his pseudonym appeared, allegedly derived from his habit of calling “Oh, Henry” to a family cat. In 1887, Porter married Athol Estes. He worked as a draftsman, then as a bank teller for the First National Bank.

In 1894 Porter founded his own humor weekly, the “Rolling Stone”, a venture that failed within a year, and later wrote a column for the Houston Daily Post. In the meantime, the First National Bank was examined, and the subsequent indictment of 1886 stated that Porter had embezzled funds. Porter then fled to New Orleans, and later to Honduras, leaving his wife and child in Austin. He returned in 1897 because of his wife’s continued ill-health, however she died six months later. Then, in 1898 Porter was found guilty and sentenced to five years imprisonment in Ohio. At the age of thirty five, he entered prison as a defeated man; he had lost his job, his home, his wife, and finally his freedom. He emerged from prison three years later, reborn as O. Henry, the pseudonym he now used to hide his true identity. He wrote at least twelve stories in jail, and after re-gaining his freedom, went to New York City, where he published more than 300 stories and gained fame as America’s favorite short Story writer. Porter married again in 1907, but after months of poor health, he died in New York City at the age of forty-eight in 1910. O. Henry’s stories have been translated all over the world.

The word “pseudonym” in the passage refers to ___________.

I was reading the book last night before I went to bed. I never took it out of this room. It's be lying around here somewhere. Where ____ it be?

(369)_______

Choose the best answer:
People must be well-prepared ………….. they want to climb Mount Everest.

The goalie tried to catch _____ ball, but he failed.

(404)_______

He was always coming up with new ideas, ______ were absolutely impracticable.

(278)_____

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:
All men should study, we have to study to (1)_____ our knowledge and develop our intelligence.An educated man can only utilize his bodily strength to work and live. An educated man, (2)_____this strength, still has the faculty of his intelligent brain and good reflection. This intelligence and thought (3)_____ him to help his physical strength to act more quickly and cleverly.In a same profession or work, the educated man differs (4)______ the uneducated considerably. Therefore, intellectual workers have to study, this is a matter of course but manual workers must also again an education. In civilized countries compulsory education has been applied. Everyone must spend seven or eight years to study. From ploughmen to laborers in these (5)_____, no one is unable to read a book or a paper fluently.

Choose the underlined words or phrases that are not correct in standard written English.
Mary is used to do her homework by herself .

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
Early peoples had no need of engineering works to supply their water. Hunters and nomads camped near natural sources of fresh water, and populations were so sparse that pollution of the water supply was not a serious problem. After community life developed and agricultural villages became urban centres, the problem of supplying water became important for inhabitants of a city, as well as for irrigation of the farms surrounding the city. Irrigation works were known in prehistoric times, and before 2000 BC the rulers of Babylonia and Egypt constructed systems of dams and canals to impound the flood waters of the Euphrates and Nile rivers, controlling floods and providing irrigation water throughout the dry season. Such irrigation canals also supplied water for domestic purposes. The first people to consider the sanitation of their water supply were the ancient Romans, who constructed a vast system of aqueducts to bring the clean waters of the Apennine Mountains into the city and built basins and filters along these mains to ensure the
clarity of the water. The construction of such extensive water-supply systems declined when the Roman Empire disintegrated, and for several centuries local springs and wells formed the main source of domestic and industrial water. The invention of the force pump in England in the middle of the 16th century greatly extended the possibilities of development of water-supply systems. In London, the first pumping waterworks was completed in 1562; it pumped river water to a reservoir about 37 m above the level of the River Thames and from the reservoir the water was distributed by gravity, through lead pipes, to buildings in the vicinity. Increased per-capita demand has coincided with water shortages in many countries. Southeast England, for example, receives only 14 per cent of Britain's rainfall, has 30 per cent of its population, and has experienced declining winter rainfall since the 1980s.
In recent years a great deal of interest has been shown in the conversion of seawater to fresh water to provide drinking water for very dry areas, such as the Middle East. Several different processes, including distillation, electrodialysis, reverse osmosis, and direct-freeze evaporation, have been developed for this purpose. Some of these processes have been used in large facilities in the United States. Although these processes are successful, the cost of treating seawater is much higher than that for treating fresh water.

One of the causes of water shortages in South-east England is     .

Choose the best answer:
Since............,I have heard nothing from him.

After a_____ hesitation, she began to speak with such a convincing voice.

(210)______

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Microtrends: It’s a Small World After All
In today’s world, it seems like everyone is focused on “the big picture”. However, coming up with large-scale solutions is not always what is needed. Sometimes it pays to think small – and that is exactly what many people are doing these days. By thinking small, lots of big minds have created some pretty amazing things. One example of this is microloans. Microloans are tiny loans, in some cases just a few dollars, which are available to people in developing countries. Although this may not seem like a lot of money, microloans can help workers to escape poverty and start their own businesses. The person behind the modern microloan movement is a Bangladeshi man named Muhammad Yunus. He started the project in the 1970s by offering villagers low-interest loans using his own money. Yunus wanted to offer poor people access to small loans so they wouldn’t be forced to turn to gangsters if they needed funds. In 1983, he founded the Grameen Bank and soon after, similar organizations started popping up around the globe. Although there are still some issues with microloans, at the very least they offer everyone the potential of becoming an entrepreneur. For most of the 20th century, companies required large sums of money and plenty of manpower to compete at the highest levels. In the late 1990s, the Internet changed this and many microenterprises came about. Microenterprises are smaller companies that employ less than 10 people and only require small sums of money to start. Being small offers lots of flexibility to these companies as they can react more quickly than corporate giants when a business opportunity arises. Many technology companies that produce mobile apps and websites fall into this category. Keep in mind that having a small staff doesn’t mean small profits, as microenterprises can earn hundreds of millions of dollars per year. Thinking small can also lead to a tremendous improvement in quality. One example of this is microbreweries, which are smaller-sized breweries that produce far less beer than traditional breweries. Since microbreweries don’t have to target large markets and make millions of sales to stay open, they can monitor the brewing process carefully to make sure everything is perfect. In addition, microbreweries can experiment with unique flavours that many traditional brewers would shy away from. So the next time you are asked to “think big”, remember that good things may also come in small packages.
6. What advantages do small companies have over larger corporations?

____ technology is already present in the form of computers, printers, scanners, handheld devices, wireless technologies, and Internet connections.

(327)_______

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I _______ the guard the time of the train's departure.

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 :
Fossil fuels are used to generate the majority of the world’s energy, and they come in different forms. For example, coal may be burned in a power (1)_________ to generate electricity, but gasoline is burned in a car’s engine to make it run. Neither of these two sources is considered green energy because they produce a lot of pollution when they are burned. In addition, they come from a source that is inevitably going to (2)__________. Green energy can be defined as any energy source that is to some degree non­polluting. When it is called (3)__________, this means that a person can replace the same amount of energy that was consumed by that person (4)__________ that person’s lifetime. Since it took millions and millions of years to create the fossil fuels that we now burn, we know that they cannot be replaced by us. Wind power and solar power, (5)__________ harnessed properly, are two excellent sources of green energy. Once the necessary parts such as wind turbines to generate wind power and solar panels to create solar power have been produced, only the pollution from the production is left.

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The Rise of E-books
Over the past decade, e-books have revolutionized the way people consume written formation. It will probably come as no surprise the total global sales number continues to rise each year. There are several reasons why readers are buying more e-books. For starters, reading a lengths e-book in front of your computer isn't the most comfortable thing to do. But since tablet sales have exploded, readers can now relax and read their favourite e-books in bed from the beach. Many e-books are often sold at lower prices than traditional books. Since there is almost zero cost for producing e-books, some authors are offering their novels at lower prices. Another factor is convenience. In the past, keeping a large book collection meant setting aside a lot of extra space in one's home. With e-books, it is now possible for readers to carry a portable library, which contains thousands of books. To really understand e-book market though, it is important to keep up with national trends. Recent data suggests that the e-book market in the US and the UK have matured. In both of these countries, e-book sales account for roughly 20 percent of overall book sales. Although that percentage continues to increase, it is going up at a slower rate than in the past. The popularity of e-books has exploded in Russia. In one poll, 70 percent of Russians claim to have read at least one e-book. However, publishers are not too pleased with this new because approximately 92 percent of e-books in Russia are acquired illegally. In France, consumers don't appear to be loo keen on e-books at this time. Although in 2012, e-book sales comprised about 3 percent of the market, it is predicted that this number will increase at a very slow pace. Some French people believe that reading e-books on small screens is uncomfortable. Others say that the French are a cultural exception, as they like the feeling of holding a dusty old physical book. This demonstrates that no matter how popular e- books get, it is unlikely that traditional books will disappear any time soon.
1. This year, e-book sales in the US and the UK will probably ___

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Ranked as the number one beverage consumed worldwide, tea takes the lead over coffee in both popularity and production with 5 million metric tons of tea produced annually. Although much of this tea is consumed in Asian, European and African countries, the United States drinks its fair share. According to estimates by the Tea Council of the United States, tea is enjoyed by no less than half of the U.S population on any given day. Black tea or green tea – iced, spiced or instant – tea drinking has spurred a billion-dollar with major tea producer in Africa and South America and throughout Asia.
Tea is made from the leaves from an evergreen plant, Camellia saneness, which grows tall and lush in tropical region. On tea plantation, the plant is kept trimmed to approximately four feet high and as new buds called flush appear; they are plucked off by hand. Even in today’s world of modern agricultural machinery, hand harvesting continues to be the preferred method. Ideally, only the top two leaves and a bud should be picked. This new growth produces the highest quality tea.
After being harvested, tea leaves are laid out on long drying racks, called withering racks, for 18 to 20 hours. During this process, the tea softens and become limp. Next, dependent on the type of tea being product, the leaves may be crushed or chopped to release flavor, and then fermented under controlled condition of heat and humidity. For green tea, the whole leaves are often steamed to retain their green color, and the fermentation process is skipped. Producing black teas requires fermentation during which the tea leaves begin darken. After fermentation, black tea is dried in vats to produce its rich brown or black color.
No one knows when or how tea became popular, but legend has it that tea as a beverage was discovered in 2737 B.C. by Emperor Shen Nung of China when leaves from camellia dropped into his drinking water as it was boiling over a fire. As the story goes, Emperor Shen Nung drank the resulting liquid and proclaimed that the drink to be most nourishing and refreshing. Though this account cannot be documented, it is thought that tea drinking probably originated in China and spread to other parts of Asia, then Europe, and ultimately to America colonies around 1650.
With about half the caffeine content of coffee, tea is often chosen by those who want to reduce, but not necessarily eliminate their caffeine intake. Some people find that tea is less acidic than coffee and therefore easier on the stomach. Others have become interested in tea drinking since the National Cancer Institute publishes its finding on the antioxidant properties of tea. But whether tea is enjoyed for it perceived health benefit, its flavor, or as a social drink, teacups continue to be filled daily with the world’ most popular beverage.a

 What best describes the topic of the passage?

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One of the major problems in the art world is how to distinguish and promote an artist. In effect, a market must be created for an artist to be successful. The practice of signing and numbering individual prints was introduced by James Abbott McNeill Whistler, the nineteenth-century artist best known for the painting of his mother, called "Arrangement in Grey and Black", but known to most of US as "Whistler's Mother". Whistler's brother-in- law, Sir Francis Seymour Haden, a less well-known artist, had speculated that collectors might find prints more attractive if they knew that they were only a limited number of copies produced. By signing the work in pencil, an artist could guarantee and personalize each print. As soon as Whistler and Haden began the practice of signing and numbering their prints, their work began to increase in value. When other artists noticed that the signed prints commanded higher prices, they began copying the procedure. Although most prints are signed on the right-hand side in the margin below the image, the placement of the signature is a matter of personal choice. Indeed, prints have been signed within the image, in any of the margins, or even on the reverse side of the print. Wherever the artist elects to sign it, a signed print is still valued above an unsigned one, even in the same edition.
9. The word "speculated" in line 8 could best be replaced by .

Choose the best answer:
Tuberculosis ............... incurable before.