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Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of energy. As food, they fuel our bodies and those of most other creatures. In such forms as oil, gas, and coal, they heat our homes, run our factories and power our cars.
Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. The most common photosynthetic pigment is chlorophyll. The bright green color characteristic of plants is caused by it. Most algae have additional pigments that may mask the green chlorophyll. Because of these pigments, algae may be not only green but brown, red, blue or even black.
In a series of enzyme-controlled reactions, the solar energy captured by chlorophyll and other pigments is used to make simple sugars, with carbon dioxide and water as the raw materials. Carbon dioxide is one of very few carbon- containing molecules not considered to be organic compounds. Photosynthesis then converts carbon from an inorganic to an organic form. This is called carbon fixation. In this process, the solar energy that was absorbed by chlorophyll is stored as chemical energy in the form of simple sugars like glucose. The glucose is then used to make other organic compounds. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply.
Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They are called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs. Many organisms cannot produce their own food and must obtain energy by eating organic matter. These are called heterotrophs.

Which of the following is NOT true?

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Accidents do not occur at random. People eighty-five years of age and older are twenty-two times likelyto die accidentally than are children five to nine years old. The risk for native Americans is four times that for Asian-Americans and twice that for white Americans or African-Americans. Males suffer accidents at more than twice the rate of females, in part because they are more prone to risky behavior. Alaskans are more than three times as likely as Rhode Islanders to die in an accident. Texans are twenty- one times more likely than New Jerseyites to die in a natural disaster. Among the one hundred most populous counties, Kern County, California (Bakersfield), has an accident fatality rate three times greater than Summit County, Ohio (Akron).
Accidents happens more often to poor people. Those living in poverty receive inferior medical care, are more apt to reside in houses with faulty heating and electrical systems, drive older cars with fewer safety features, and are less likely to use safety belts. People in rural areas have more accidents than city or suburban dwellers because farming is much riskier than working in a factory or office and because emergency medical services are less readily available. These two factors - low income and rural residence
- may explain why the south has a higher accident rate than the north.

According to the passage, which of the following groups of people in America face the highest risk of having an accident?

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Grandparents are becoming the forgotten generation, with youngsters now too busy to listen to their stories from the olden days.
A study of 1,000 five to 18 year-olds reveals just 21 per cent will visit their older relatives to hear about how their lives were different in the  past; such as  where they worked, how it was living in the war, and how they met the love of their life. More than half of youths have no idea what job their grandparent did before retirement - admitting they'd never thought to ask. Sadly, one in 10 admitted they are simply not interested in their grandmother's or grandad's previous job or talents and interests, and a quarter only turn up to see  them for pocket money. But 23 per cent claim the reason they don't know  anything about their older relatives is  because they don't really get  the chance to talk properly.
Geoff Bates, spokesman for McCarthy 8/. Stone's Inspirational Generation campaign, said: We know this generation have lived full lives with heroic tales to tell and so much to offer, but how many  of us have actually thought to ask these questions of our older family members? We want to shout about the amazing feats retirees have achieved in their lifetime and put the spotlight on the wonderfully colorful lives of today's older people. We are calling on parents and children to talk to   their grandparents, to find out what they have done in their lives - and continue to do, and tell us all about it so we can give them the credit they deserve."
Researchers found that although 65 per cent of youngsters do see their grandparents every single week, 37 per cent claim this is only because their parents want them to. And while 39 per cent talk to their grandparents on the phone, Facebook or Skype at least once a week -  16  per cent once a day - conversation is rarely focused on what they are doing or have done in  the past.  Four in 10 kids have no idea what their grandparents proudest achievements are, while 30 per cent don't know if they have any special skills or talents. And 42 per cent don't spend any time talking about their grandparent's history -and are therefore clueless about what their grandmother or grandad was like when they were younger. Perhaps due to this lack of communication and respect, just six per cent of children say they look up to their grandparents as a role model and inspiration. However, grandchildren are agreed their grandparents are both loving and friendly, while 43 per cent think they're funny - with 23 per cent admitting they often have more fun with their elderly relatives than their parents.

Which of the following could be the main idea of the passage?

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Amelia Earhart was born in Kansas in 1897. Thirty one years later, she received a phone call that would change her life. She was invited to become the first woman passenger to cross the Atlantic Ocean in a plane. The flight took more than 20 hours – about three times longer than it routinely takes today to cross the Atlantic by plane. Earhart was twelve years old before she ever saw an airplane, and she didn’t take her first flight until 1920. But she was so thrilled by her first experience in a plane that she quickly began to take flying lessons. She wrote, “As soon as I left the ground, I knew I myself had to fly.”
After that flight Earhart became a media sensation. She was given a ticker tape parade down Broadway in New York and even president Coolidge called to congratulate her. Because her record – breaking career and physical appearance were similar to pioneering pilot and American hero Charles Lindbergh, she earned the nickname “Lady Lindy.” She wrote a book about her flight across the Atlantic, called 20 Hrs, 40 Min.
Earhart continued to break records, and also polised her skills as a speaker and writer, always advocating women’s achievements, especially in aviation. Her next goal was to achieve a transatlantic crossing alone. In 1927 Charles Lindbergh became the first person to make a solo nonstop flight across the Atlantic. Five years later, Earhart became the first woman to repeat that feat. Her popularity grew even more and she was the undisputed queen of the air. She then wanted to fly around the world, and in June 1973 she left Miami with Fred Noonan as her navigator. No one knows why she left behind important communication and navigation instruments. Perhaps it was to make room for additional fuel for the long flight. The pair made it to New Guinea in 21 days and then left for Howland Island, a tiny island in the middle of the Pacific Ocean. The last communication from Earhart and Noonan was on July 2, 1937 with a nearby Coast Guard ship. The United States Navy conducted a massive search for more than two week but no trace of the plane or its passengers was ever found. Many people believe they got lost simply ran out of fuel and died.

The word “undisputed” in the third paragraph is closest in meaning to     .

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Most sources of illumination generate light over an appreciable period, and indeed if an object is lit for a very brief time (1ess that 1/25 second), the human eye will not react in time to see the object. A photographic emulsion - that is, a light-sensitive coating on photographic film, paper, or glass - will, however, record much shorter bursts of light. A photographic flash can therefore be used to capture high- speed movement on film as well as to correct deficiencies of the normal surrounding lighting. Photoflash is now generated electronically, but the earliest form, first used in 1864, was a paper bag containing magnesium wire and some oxygen-rich substance, such as potassium chlorate. When the bag was ignited, the metal burned with an intense flash. A contemporary observer reported that "this quite unsafe device seems to have done nothing worse that engulf the room in dense smoke and lead to pictures of dubious quality and odd poses.”
The evolution of the photoflash was slow, flashbulbs, containing fine wire made of a metal, such as magnesium or aluminum, capable of being ignited in an atmosphere of pure oxygen at low pressure, were introduced only in the 1920's. In the earliest type, the metal was separated from the oxygen by a thin glass bulb. The flash was fired by piercing the bulb and allowing the oxygen to come into contact with the metal, which ignited spontaneously. Later bulbs were fired by an electric battery, which heated the wire by passing a small current through it. Other combinations, such as the pairing of oxygen difluoride with zirconium, have also been used. In each case enough energy is given out to heat the oxidizable metal momentarily to a white hot emission of visible light. The smoke particles are so small that they cool rapidly; but since they are white, they contribute to the brilliance by reflecting the light from their still glowing neighbors. A slightly bigger form of the metal will burn for a longer time.

According to the passage, what helps a flashbulb burn longer?

MOBILE PHONES: ARE THEY ABOUT TO TRANSFORM OUR LIVES?
We love them so much that some of us sleep with them under the pillow, yet we are increasingly concerned that we cannot escape their electronic reach. We use them to convey our most intimate secrets, yet we worry that they are a threat to our privacy. We rely on them more than the Internet to cope with modern life, yet many of us don’t believe advertisements saying we need more advanced services. Sweeping aside the doubts that many people feel about the benefits of new third generation phones and fears over the health effects of phone masts, a recent report claims that the long-term effects of new mobile technologies will be entirely positive so long as the public can be convinced to make use of them. Research about users of mobile phones reveals that the mobile has already moved beyond being a mere practical communications tool to become the backbone of modern social life, from love affairs to friendship to work.
The close relationship between user and phone is most pronounced among teenagers, the report says, who regard their mobiles as an expression of their identity. This is partly because mobiles are seen as being beyond the control of parents. But the researchers suggest that another reason may be that mobiles, especially text messaging, were seen as a way of overcoming shyness. The impact of phones, however, has been local rather than global, supporting existing friendship and networks, rather than opening users to a new broader community. Even the language of texting in one area can be incomprehensible to anybody from another area.
Among the most important benefits of using mobile phones, the report claims, will be a vastly improved mobile infrastructure, providing gains throughout the economy, and the provision of a more sophisticated location-based services for users. The report calls on government to put more effort into the delivery of services by mobile phone, with suggestion including public transport and traffic information and doctors’ text messages to remind patients of appointments. There are many possibilities. At a recent trade fair in Sweden, a mobile navigation product was launched. When the user enters a destination, a route is automatically downloaded to their mobile and presented by voices, pictures and maps as they drive. In future, these devices will also be able to plan around congestion and road works in real time. Third generation phones will also allow for remote monitoring of patients by doctors. In Britain, scientists are developing an asthma management solution using mobiles to detect early signs of an attack.
Mobile phones can be used in education. A group of teachers in Britain use third generation phones to provide fast internet service to children who live beyond the reach of terrestrial broadband services and can have no access to online information. ‘As the new generation of mobile technologies takes off, the social potential will vastly increase,’ the report argues.

What does the writer suggest in the first paragraph about our attitudes to mobile phones?

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Volunteering offers many of the same social benefits, with the added bonus of helping others and developing useful skills to put on your CV. Plus, students are in a unique position to help, suggests Tom Fox. "They can take their enthusiasm and excitement for opportunities and share their passions, subject knowledge and experience with people." The idea of giving up time for nothing might seem impractical at first, especially once the pressures of study and coursework or exams begin to mount up. However, Michelle Wright, CEO of charity support organization Cause4, suggests seeing volunteering as a two-way street. "I think it is fine for undergraduates to approach volunteering as a symbiotic relationship where doing good is just one part of the motivation for reaching personal and professional goals."
Katerina Rudiger, head of skills and policy campaigns at the Chartered Institute of Personnel and Development (CIPD), says: "Volunteering can be a valuable way of gaining that experience, as well as building confidence, broadening your horizons, becoming a better team player and developing those all- important 'employability skills' such as communication and decision making." Amanda Haig, graduate HR manager, agrees that volunteering can help your employment prospects. "Volunteering can demonstrate positive personality traits and skill sets, such as proactivity, and teamwork," she says.
A positive side-effect of volunteering is improving your time at university by getting involved in the local community. Leaving the student bubble can make your time as an undergraduate much more varied. At Bath Spa University, more than 1,000 students volunteered over the past year, doing everything from working on local environmental projects to helping in schools or assisting the elderly. ”Quite often there can be a divide between students and permanent residents," says students' union president Amy Dawson, "but if students invest a little time now, they will be giving something back to the local community and will reap the benefits in the future."
“You might also find that volunteering helps your studies if you choose the right program. At Lancaster, volunteering is linked into academic modules in some cases", explains Fox. "This has multiple
wins. Students get to apply their learning in the classroom and share their interests with children in local schools or community organizations, while schools gain skilled students with a passion for a subject that enthuses their pupils."

What is the most suitable title for this reading?

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Sometimes people add to what they say even when they don't talk. Gestures are the "silent language" of every culture. We point a finger or move another part of the body to show what we want to say. It is important to know the body language of every country or we may be misunderstood. In the United States, people greet each other with a handshake in a formal introduction. The handshake must be firm. If the handshake is weak, it is a sign of weakness or unfriendliness. Friends may place a hand on the other's arm or shoulder. Some people, usually women, greet a friend with a hug.
Space is important to Americans. When two people talk to each other, they usually stand about two and a half feet away and at an angle, so they are not facing each other directly. Americans get uncomfortable when a person stands too close. They will move back to have their space. If Americans touch another person by accident, they say, "Pardon me." or "Excuse me." Americans like to look the other person in the eyes when they are talking. If you don't do so, it means you are bored, hiding something, or are not interested. But when you are stare at someone, it is not polite. For Americans, thumbs-up means yes, very good, or well done. Thumbs down means the opposite. To call a waiter, raise one hand to head level or above. To show you want the check, make a movement with your hands as if you are signing a piece of paper. It is all right to point at things but not at people with the hand and index finger. Americans shake their index finger at children when they scold them and pat them on the head when they admire them. Learning a culture's body language is sometimes confusing. If you don't know what to do, the safest thing to do is to smile.

The word “accident” in paragraph 2 is closest in meaning to .

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When people hear the word “city”, they usually imagine concrete, neon signs, and lots of air pollution. Thanks to some clever and concerned architects, this image is starting to change. The concept of green cities aims to bring some beauty from rural environments into urban areas. It is not only about looking better though. Green cities are also trying to improve the efficiency of cities and raise the standard of living for people who stay in them.
The term “green cities” refers to cities where builders take into account several environmental factors before that city is constructed or redesigned. For starters, green cities are designed to be more physically appealing than traditional cities from the past. In addition, the mobility of citizens should be considered, so public transportation can be more convenient and travel time to work can be reduced. Energy sources should also be evaluated with the goal of minimizing air pollution.
When it comes to going green, the city of Barcelona is far ahead of its time. Since 1859, its designers have consciously tried to create sustainable urban designs. Then in 1992, the city received a well-deserved makeover before hosting the Olympic Games. In recent years, Barcelona has upgraded its transportation system. This has reduced air pollution as more and more workers are using public transportation instead of their own vehicles. Barcelona also boasts one of the best recycling programmes in the world. Visitors will find clear, colour-coded trash bins throughout the city where they can put all of their materials.
It is no secret in Portland, Oregon is one of the greenest cities in the US. Since 1903, it has been an example of what American cities can accomplish with careful planning. Instead of filling its area with office buildings, Portland has plenty of green space for activities. There are 119 kilometres of running, hiking, and bike trails that allow citizens to experience the great outdoors. The city also offers residents creative energy plans that give them the opportunity to pay a bit extra for clean energy sources. For about
$3 to $9 extra each month, homeowners can choose solar or wind power and help the environment.
These are only a small sampling of the green cities around .the world. As more people experience the pleasure of visiting green cities, it seems certain that the trend of urban areas going green will continue far into the future.

The word “they” in paragraph 3 refers to     .

Choose the best answer:
Many young people choose to spend a year or two of their lives while they are still (1)______ living in a foreign country and working as a volunteer. Working as a volunteer means that you cannot only help others, but also develop a (2)______understanding of the world and yourself.

You must have a university degree and (3)______at least one year‟s experience before you can (4)______ . Suitable applicants are invited to attend a series of interviews and are then sent on a training programme. Applicants are usually offered a post (5)______ months and can be sent anywhere from the Sahara to Siberia.

The advantages of being a volunteer far (6)______ the disadvantages. Being a volunteer can enable you to get (7)______ experience that you would otherwise not have had. It can help you move up the career ladder faster. You will make (8)______ friends and return with an appreciation of another culture and language.

However, volunteering is not for everyone. It can be difficult being (9)______ from friends and family. Living on a (10)______ allowance is challenging. But, if you do choose to go, you will return a stronger and wiser person.
6.

The ocean bottom - a region nearly 2.5 times greater than the total land area of Earth - is a vast frontier that even today is largely unexplored and uncharted. Until about a century ago, the deep-ocean floor was completely inaccessible, hidden beneath waters averaging over 3,600 meters deep. Totally without light and subjected to intense pressures hundreds of times greater than at the Earth’s surface, the deep-ocean bottom is a hostile environment to humans, in some ways as forbidding and remote as the void of outer space.
Although researchers have taken samples of deep-ocean rocks and sediments for over a century, the first detailed global investigation of the ocean bottom did not actually start until 1968, with the beginning of the National Science Foundation’s Deep Sea Drilling Project (DSDP). Using techniques first developed for the offshore oil and gas industry, the DSDP’s drill ship, the Glomar Challenger, was able to maintain a steady position on the ocean’s surface and drill in very deep waters, extracting samples of sediments and rock from the ocean floor.
The Glomar Challenger completed 96 voyages in a 15-year research program that ended in November 1983. During this time, the vessel logged 600,000 kilometers and took almost 20,000 core samples of seabed sediments and rocks at 624 drilling sites around the world.. The Glomar Challenger’s core samples have allowed geologists to reconstruct what the planet looked like hundreds of millions of years ago and to calculate what it will probably look like millions of years in the future. Today, largely on the strength of evidence gathered during the Glomar Challenger’s voyages, nearly all earth scientists agree on the theories of plate tectonics and continental drift that explain many of the geological processes that shape the Earth.
The cores of sediment drilled by the Glomar Challenger have also yielded information critical to understanding the world’s past climates. Deep-ocean sediments provide a climatic record stretching back hundreds of millions of years, because they are largely isolated from the mechanical erosion and the intense chemical and biological activity that rapidly destroy much land-based evidence of past climates. This record has already provided insights into the patterns and causes of past climatic change - information that may be used to predict future climates.

Which of the following is true of the Glomar Challenger?

It is hard to get any agreement on the precise meaning of the term "social class". In everyday life, people tend to have a different approach to those they consider their equals from which they assume with people they consider higher or lower than themselves in social scale. The criteria we use to 'place' a new acquaintance, however, are a complex mixture of factors. Dress, way of speaking, area of residence in a given city or province, education and manners all play a part.
In ancient civilizations, the Sumerian, for example, which flourished in the lower Euphrates valley from 2000 to 5000 B.C. social differences were based on birth, status or rank, rather than on wealth. Four main classes were recognized. These were the rulers, the priestly administrators, the freemen (such as craftsmen, merchants or farmers) and the slaves.
In Greece, after the sixth-century B.C., there was a growing conflict between the peasants and the aristocrats, and a gradual decrease in the power of the aristocracy when a kind of ‘middle class’ of traders and skilled workers grew up. The population of Athens, for example, was
divided into three main classes which were politically and legally distinct. About one-third of the total population was slaves, who did not count politically at all, a fact often forgotten by those who praise Athens as the nursery of democracy. The next main group consisted of resident foreigners, the, ‘metics’ who were freemen, though they too were allowed no share in political life. The third group was the powerful body of ‘citizens”, who were themselves divided into sub- classes.
In the later Middle Ages, however, the development of a money economy and the growth of cities and trade led to the rise of another class, the ‘burghers’ or city merchants and mayors. These were the predecessors of the modern middle classes. Gradually high office and occupation assumed importance in determining social position, as it became more and more possible for a person born to one station in life to move to another. This change affected the towns more than the country areas, where remnants of feudalism lasted much longer.

Athens is often praised as the nursery of democracy ................

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Most of the fastening devices used in clothing today, like the shoelace, the button, and the safely pin. have existed in some form in various cultures for thousands of years. But the zipper was the brainchild of one American inventor, namely Whitcomb Judson of Chicago. At the end of the 19th century. Judson was already a successful inventor, with a dozen patents to his credit for mechanical items such as improvements to motors and railroad braking system.
He then turned his mind to create a replacement for the lengthy shoelaces which were then used in both men’s and women's boots. On August 29th 1893, he won another patent, for what he called the case “locker”. Though the model was somewhat clumsy, and frequently jammed, it did work: in fact, Judson and his business associate Lewis Walker had sewn the device into their own boots. Although Judson displayed his clasp–locker at the World's Fair held in Chicago in 1893, the public largely ignored it. The company founded by Judson and Walker, Universal Fastener, despite further refinements, never really succeeded in marketing the device.
The earliest zip fasteners were being used in the clothing industry by 1905, but it was only in 1913, after a Swedish–American engineer, Gideon Sundbach, had remodeled Judson's fastener into a more streamlined and reliable form, that the zipper was a success. The US Army applied zippers to the clothing and equipment of the troops of World War I. By the late 1920s, zippers could be found in all kinds of clothing, footwear, and carrying cases; by the mid–1930s, zippers had even been embraced by the fashion industry.
The term “zipper" was coined as onomatopoeia (resembling the sound it makes) by B.F. Goodrich whose company started marketing rubber shoes featuring the fastener in 1923. Regrettably. Whitcomb Judson died in 1909, and never heard the term, or saw the success by which his invention would become popular.

According to the passage, zippers did not really become a success until     .

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Everybody has heard about the Internet, do you know what an “intranet” is? It is this: just as the Internet connects people around the world, intranets connect people within a single company. In fact, intranets make use of the same software programs as the Internet to (1)......computers and people. This means that you do not have to buy a lot of additional programs to set up an intranet service. If your intranet is working properly, it can link together a huge amount of (2)...........which is stored in different places in the company. In this way, people can get the information they need, regardless (3)........ where it comes from. A company intranet can, of course, be used for unimportant information like office memos or canteen menus. But an intranet should provide important information which people need to make decision about new products, costs and so on. The intranet is (4)......... to share their information with other people. Unfortunately, many departments don’t want to share their specialist knowledge with  others.  Another  problem  (5)........ often occurs is that top managers like to use the intranet to “communicate down” rather than to “communicate across”. That is, they use the intranet to give orders, not to share information between themselves and others working in the same organization.
(4)................................

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     As customers choose brands based on how they make them feel, rather than their actual products or services, there is an intrinsic advantage to those organizations who use designed experiences as a weapon to cut through the most competitive of markets. Those that don’t, operate in what we call the “experience gap”, the space between them and their customer’s expectation of them. Make no mistake, in our high paced and digitally connected economies, the experience gap is driving markets, fast.
     For example, take Instagram and Twitter. These brands filled the demand for a whole new human experience that did not exist before the evolution of digital technologies enabled that. They were pioneers, and there were no established players to unseat. But we are also seeing a similar dynamic in existing industries. New entrants are coming in and taking the space, also using whole new experiences, purely because the incumbents left the door open.
    Closer to home, this can be seen with Australian neobanks who are giving customers a better experience than the incumbents. Robert Bell is the CEO at neobank 86400. He says banking has already become quite complicated and he wanted to make a change. His neobank is working to solve customers problems more holistically. Bell said, “It’s significantly harder work and takes more time to become a bank, but having done that we can have a much better relationship with our customers and we can offer them a lot more products and services.”
      Think about that for a moment. Do you notice how better experiences, leads to better relationships, which is then the stepping stone for more offerings? Many brands still jump straight to modified offerings, without gaining that customer connection and the necessary foundation of trust first.

The word “them” in paragraph 1 refers to _______.

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From time immemorial, cities have been the central gathering places of human life, from where the great ideas and movements of the world have sprouted. In this country, the beginnings of our independence fomented with the Boston Tea Party, while Philadelphia served as the home of the Constitutional Convention. The seeds of economic and financial power were sowed on the streets of New York City. Around the world, the great thinkers of the Renaissance assembled in Florence, the impressionist painters flocked to Paris, and the industrial revolution sparked in Birmingham England.
Hundreds of years later, great ideas and innovations are still sprouting in cities – but this time accompanied by a growth in urbanized life over the last several decades never before seen. For the first time in history, more people are living in cities than rural areas. And, this way of living is only going to continue: by 2050, the urban share of global population is projected to surpass 66 percent (up from 30 percent in 1950). This trend to urbanization is even more dramatic beyond the borders of the United States. Take Nigeria's capital, Lagos, which had a population of approximately 7.2 million in 2000, and is expected to rise to 24 million by 2030. And, eight times more Nigerians live in cities today than in 1975. Moreover, the metro areas of Tokyo, New York and Mexico City were the only metro areas in 1975 with at least 10 million people. Today, that list would include 31 such megacities – with 10 more to join by 2030 – all of which are outside the United States.
Cities are undergoing what Brookings Institution author Bruce Katz terms the "metropolitan revolution." Financial capitals New York and London are transforming into major world tech hubs as new and innovative companies emerge within these cities. And, this shift is not exclusive to New York or London, as many cities are undergoing similar transformations driven by this global trend toward urbanization. This wave of urban growth stems, in large part, from the mass adoption of the internet and interconnected technologies. Interestingly, many sociologists predicted years ago that the advent of such interconnectivity would enable people to live and work anywhere. But the practical result has been the opposite.
Indeed, in this new 21st century economy, innovative workers seek one another to collaborate in building and developing new knowledge-based industries that are increasingly disrupting and dominating a rapidly evolving global economy. Bright, curious minds in the sciences and technology demand proximity in order to be more productive, more creative and further stimulated. This need for collaboration has propelled millennials to move to urban areas in droves. But once they get there, they desire new open physical environments – such as incubators and shared work places – to enhance their collaborative efforts. Beyond work, a growing single population – one that now outnumbers married people in the United States – seeks out other singles amid the myriad activities and diverse nightlife that only cities offer.

What topic does the passage mainly discuss?

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The day after Thanksgiving is the start of the holiday shopping season. Thanksgiving is always on a Thursday, so the day after is a Friday. This day has come to be known as Black Friday. It has been the busiest shopping day of the year since 2005.
Most stores offer great deals on Black Friday. They open their doors in the wee hours of the morning. They try to attract shoppers with big discounts. Some items like TVs are much cheaper than usual. Stores may even lose money on these items. They hope that shoppers will buy gifts for other people while they are in the store.Black Friday is a great time to get good deals. The problem is that there are not enough low-priced items to go around. Each store may only have a few. These items are in high demand. People stand in long lines to get such great deals. They may line up hours before a store opens. They may be hoping to get a low price on a TV or laptop, but not everyone who wants one will get one. Some people leave disappointed. The situation can be tense. Some Black Friday events have been Violent. Large, eager crowds have trampled workers. Fights have broken out or people have been cutting in line. People have shot one another over parking spots. But most Black Friday events are safe and fun. Still, if you plan on going, expect large crowds and a bit of shoving.

The word "trampled" in paragraph 3 mostly means      

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Human memory, formerly believed to be rather inefficient, is really more sophisticated than that of a computer. Researchers approaching the problem from a variety of points of view have all concluded that there is a great deal more stored in our minds than has been generally supposed. Dr. Wilder Penfield, a Canadian neurosurgeon, proved that by stimulating their brains electrically, he could elicit the total recall of specific events in his subjects’ lives. Even dreams and other minor events supposedly forgotten for many years suddenly emerged in detail.
The memory trace is the term for whatever is the internal representation of the specific information about the event stored in the memory. Assumed to have been made by structural changes in the brain, the memory trace is not subject to direct observation but is rather a theoretical construct that we use to speculate about how information presented at a particular time can cause performance at a later time. Most theories include the strength of the memory trace as a variable in the degree of learning, retention, and retrieval possible for a memory. One theory is that the fantastic capacity for storage in the brain is the result of an almost unlimited combination of interconnections between brain cells, stimulated by patterns of activity. Repeated references to the same information support recall. Or, to say that another way, improved performance is the result of strengthening the chemical bonds in the memory.

The word “that” refers to............................

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:
Orbis is an organisation which helps blind people of everywhere. It has built an eye hospital inside an aeroplane and flown it all over the world with an international medico team. Samantha Graham, a fourteen-year-old schoolgirl from England, went with the plane to Mongolia. Samantha tells the story, of the Eukhtuul, a young Mongolian girl.
'Last year, when Eukhtuul was walking home from school, she was attacked by boys with sticks and her eyes were badly damaged. Dr. Duffey, an Orbis doctor, said that without an operation she would never see again, I thought about all the things I do that she couldn't, things like reading schoolbooks, watching television, seeing friends, and I realised how lucky I am.'
'The Orbis team agreed to operate on Eukhtuul and I was allowed to watch, together with some Mongolian medical students. I prayed the operation would be successful. The next day I waited nervously with Eukhtuul while Dr. Duffey removed her bandages. "In six  months your sight will be back to normal," he said. Eukhtuul smiled, her mother cried, and I had to wipe away some tears, too!'
Now Eukhtuul wants to study hard to become a doctor. Her whole future has changed thanks to a simple operation. We should all think more about how much our sight means to us.’

What is the writer's main purpose in writing this passage?

Choose the option that best completes each of the following sentences

Computer programmer David Jones earns £35,000 a year designing new computer games, yet he cannot find a bank prepared to let him have a cheque card. Instead, he has been told to wait another two years, until he is 18.

The 16-year-old works for a small firm in Liverpool, where the problem of most young people of his age is finding a job. David's firm releases two new games for the expanding home computer market each month.

But David's biggest headache is what to do with his money.

Despite his salary, earned by inventing new programs within tight schedules, with bonus payments and profit-sharing, he cannot drive a car, take out a mortgage, or obtain credit cards. He lives with his parents in their council house in Liverpool, where his father is a bus driver. His company has to pay £150 a month in taxi fares to get him the five miles to work and back every day because David cannot drive.

David got his job with the Liverpool-based company four months ago, a year after leaving school with six O-levels and working for a time in a computer shop. "I got the job because the people who run the firm knew I had already written some programs," he said.

"I suppose £35,000 sounds a lot but actually that's being pessimistic. I hope it will come to more than that this year." He spends some of his money on records and clothes, and gives his mother £20 a week. But most his spare time is spent working.

"Unfortunately, computing was not part of our studies at school," he said. "But I had been studying it in books and 'magazines for four years in my spare time. I knew what I wanted to do and never considered staying on at school. Most people in this business are fairly young, anyway."

David added: "I would like to earn a million and I suppose early retirement is a possibility. You never know when the market might disappear."

He left school after taking O-levels because ..............

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:
The majority of medium and large companies pay higher wage rates to men than to women, according to the latest government figures. The disparity, known as the gender pay gap, reflects the different average hourly salaries earned by men and women. The government data showed 74% of firms pay higher rates to their male staff. just 15% of businesses with more than 250 employees pay more to women. As many as 11% of firms said there is no difference between the rates paid to either gender.
Unlike pay inequality - which compares the wages of men and women doing the same job - a gender pay difference at a company is not illegal, but could possibly reflect discrimination. The average gender pay gap across all medium and large-sized firms is now 8.2%, as measured by median pay. in other words, men typically earn over 8% more per hour than women. Among those with the largest gender pay gap are airlines such as Tui and Easyjet, and banks including Virgin Money, the Clydesdale and TSB. Easyjet has said its pay gap of 45.5% is down to the fact that most of its pilots are male, while most of its more modestly paid cabin crew are female. Tui Airways - where men earn 47% more than 214women - has the same issue. Many banks also appear to have a gender bias on salaries. The Bank of England's wage rate for men is 24% higher than for its female employees.
By law, all firms with more than 250 staff must report their gender pay gap to the government by 4 April this year. So far only 1,047 firms have complied, leaving another 8,000 to go. Carolyn Fairbairn, director general of the CBI, denied companies were dragging their feet in reporting the data. "I don't see a reluctance," she told the Today programme. "I think this is genuinely quite difficult data to find, it is often sitting on different systems and firms are working very hard towards that deadline.

The word “their” in paragraph 3 refers to     ?