Choose the best answer: 
There are many advantages of having online friends. First, they can be anywhere in the world, so you can learn about (1)..........cultures and lifestyles. Distance does not matter, as all you need is a computer. Second, you can contact them whenever you wish - (2)as long as they are online- and you can end the conversation easily when you have other things to do. What’s more, you can save a lot of money as there’ll be no dinners, parties or get-togethers. You don’t have to spend money (3).............. things like food and drinks or cinema tickets. Most importantly, you can quickly end a relationship when you don’t feel comfortable with the person any more. The only thing,
perhaps, you don’t like about this kind of (4).......... is that sometimes you don’t know for sure who these friends really are. They may not use their real names and post other people’s photos

3.

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 phrase "dragging their feet" in paragraph 3 means     .

Ambient divers are, unlike divers who go underwater in submersible vehicles of pressure resistant suits, exposed to the pressure and temperature of the surrounding ambient water. Of all types of diving, the oldest and simplest is free diving. Free divers may use no equipment at all, but most use a face mask, foot fins, and a snorkel. Under the surface, free divers must hold their breath. Most free divers can only descend 30 to 40 feet, but some skilled divers can go as deep as 100 feet.
Scuba diving provides greater range than free diving. The word scuba stands for self-contained underwater breathing apparatus. Scuba divers wear metal tanks with compressed air or other breathing gases. When using open-circuit equipment, a scuba diver simply breathes air form the tank through a hose and releases the exhaled air into the water. A closed-circuit breathing device, also called a rebreather, filters out carbon dioxide and other harmful gases and automatically adds oxygen. This enables the diver to breathe the same air over and over. In surface-supplied diving, divers wear helmets and waterproof canvas suits. Today, sophiticated plastic helmets have replaced the heavy copper helmets used in the past.These divers get their air from a hose connected to compressors on a boat. Surface-supplied divers can go deeper than any other type of ambient diver.

What does the word “descend” in the paragraph probably mean?

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:
Today, there are 600 million cars in the world. They may seem like a lot. However, there are over 7 million people on our planet. Most of the world’s population uses public transportation to get around. The number of people using public transportation continues to rise. Subway systems worldwide carry 155 million passengers each day. That’s more than 30 times the number carried by all the world’s airplanes. Every day in Tokyo passengers take more than 40 million rides on public transportation.
Yet many people see public transportation as ‘a depressing experience’, says author Taras Gresco. They say it is slow, crowded, or too expensive. In fact, Gresco says, it is actually ‘faster, more comfortable and cheaper’ than driving a car.Like millions of people, Taras Gresco is a ‘straphanger’ - a person who rides public transportation. In his book straphanger: Saving Our Cities and Ourselves from the Automobile, Gresco describe the benefits of public transportation. Firstly, it is better for the environment. When people use public transportation, they use less fuel. Twenty people on one bus use much less fuel than 20 people in 20 cars. Fewer cars mean less pollution and cleaner air.
Using public transportation can be good for your health in other ways. It can even help you lose weight. In one study, a group of people took public transportation every day for six months. Each day they walked to a bus stop or train station. In six months, each person lost an average of six pounds - almost three kilograms. Taking public transportation has another benefit, says Gresco. It helps people become part of their community. When you are alone in your car, you don’t talk to anyone. One Tokyo straphanger told Gresco, “To use public transport is to know how to cooperate with other people,’ It teaches you ‘how to behave in a public space’. So, public transportation is more than a way to get to work or school. It can help lead to cleaner cities. It may also lead to a healthier and more cooperative world population.

Which of the following is not mentioned in the passage as the one that benefits from the public transportation?

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:
Dear Editor,
I read with interest the article on American families. In general I agree with it, but there are some important things it left out. It didn't tell the reader much about the life of a househusband. It's not an easy life. I know, because I'm now a househusband myself. A househusband has to change many of his ideas and his ways.
First of all, he has to change the way he thinks about time. Before I was a househusband, I worked full-time for the New York Times. I was a reporter, and time was always important. We had to finish our article quickly and give them to the editor. Everyone was always in a hurry. This is the way, many other men work, too. Businessmen, lawyers, bankers, and doctors all have to work quickly.
At home it's different. The househusband cannot be in a hurry all the time. If you rush around, you will make everyone unhappy! The children will be unhappy because they don't understand. For them, time is not important. Your wife will be unhappy because the children are unhappy. You will be unhappy, too, because they are all unhappy. So you have to learn to slow down. That is the first and most important rule for a househusband.
There is something else the househusband must learn. You must learn to show how you feel about things. At work, men usually do not talk about feelings. If they do, people think they are strange. So, many men are not used to telling anyone about their feelings. They do not know how to talk about their anger, worries, or love. But children need to know how you feel. They need to know how much you love them. If you are angry, they need to know why. Your wife also needs to know about your feelings. If you do not say anything, your family may get the wrong idea. Then there may be serious problems.
People talk a lot about househusbands these days. Usually they talk about men doing the housework, the cooking, cleaning, and shopping. But in my opinion, these are the easiest things to learn. It was much harder for me to change the way I think and the way I act with my family. I think, other men will also find this harder, but, like me, will find it necessary if they want to have a happy family!
Ted Diamond

The word "they" in paragraph 4 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. 
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.

According to paragraph 1, which country was mentioned when the author stated “in this country”?

There are a number of natural disasters that can strike across the globe. Two that are frequently linked to one another are earthquakes and tsunamis. Both of them can cause a great amount of devastation when they hit. However, tsunamis are the direct result of earthquakes and cannot happen without them.
The Earth has three main parts. They are the crust, the mantle, and the core. The crust is the outer layer of the Earth. It is not a single piece of land. Instead, it is comprised of a number of plates.
There are a few enormous plates and many smaller ones. These plates essentially rest upon the mantle, which is fluid. As a result, the plates are in constant – yet slow – motion. The plates may move away from or toward other plates. In some cases, they collide violently with the plates adjoining them. The movement of the plates causes tension in the rock. Over a long time, this tension may build up. When it is released, an earthquake happens.Tens of thousands of earthquakes happen every year. The vast majority are so small that only scientific instruments can perceive them. Others are powerful enough that people can feel them, yet they cause little harm or damage. More powerful earthquakes, however, can cause buildings, bridges, and other structures to collapse. They may additionally injure and skill thousands of people and might even cause the land to change it appearance.
Since most of the Earth’s surface is water, numerous earthquakes happen beneath the planet’s oceans. Underwater earthquakes cause the seafloor to move. This results in the displacement of water in the ocean. When this occurs, a tsunami may form. This is a wave that forms on the surface and moves in all directions from the place where the earthquake happened. A tsunami moves extremely quickly and can travel thousnads of kilometres. As it approaches land, the water near the coast gets sucked out to sea. This causes the tsunamis to increase in height.
Minutes later, the tsunami arrives. A large tsunami – one more than ten meters in height – can travel far inland. As it does that, it can flood the land, destroy human settlements, and kill large numbers of people

Which of the following statements does paragraph 1 support?

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
Looking for an unforgettable way to celebrate that special occasion? Well, the (1)........... of options open today’s youngster - or even “oldster” for that matter, is a far cry from the traditional party or restaurant visit. No longer is it considered sufficient to invite your friends round, buy some food and get a barker to produce a cake. No, today’s birthday boy or girl is looking for something out of the ordinary, ranging from the outrageously expensive to the downright dangerous. Anything goes, as long as it is unusual and impressive.
Top  of  this  year’s  popular  (2)....... are as follows: taking some friends rally driving, helicopter lessons, plane trip and parachuting, and hot air ballooning. Then there is always group bungee jumping or taking your buddies on a stomach - churning, while water rafting ride down rapids.
The desire of adventurous celebration is not restricted to the young I recently met an octogenarian (3)... _ celebrated (4)..... the milestone of eighty by having a fly lesson.
Of course, if you have money the world is your oyster. A very rich relation of mine flew fifty of his friends to a Caribbean island to mark the passing of his half century. Unfortunately I was only a distant relation.
Undoubtedly, the more traditional  forms (5)...... celebration do continue to satisfy the less extravagant or less adventurous among us. However, with my own half century looming on the horizon I would not say no to a weekend in Paris and a meal at the Eiffel Tower. I can but dream. Perhaps by the time I’m eighty I’ll be able to afford it.
(5)..........................................................

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:
Dear Editor,
I read with interest the article on American families. In general I agree with it, but there are some important things it left out. It didn't tell the reader much about the life of a househusband. It's not an easy life. I know, because I'm now a househusband myself. A househusband has to change many of his ideas and his ways.
First of all, he has to change the way he thinks about time. Before I was a househusband, I worked full-time for the New York Times. I was a reporter, and time was always important. We had to finish our article quickly and give them to the editor. Everyone was always in a hurry. This is the way, many other men work, too. Businessmen, lawyers, bankers, and doctors all have to work quickly.
At home it's different. The househusband cannot be in a hurry all the time. If you rush around, you will make everyone unhappy! The children will be unhappy because they don't understand. For them, time is not important. Your wife will be unhappy because the children are unhappy. You will be unhappy, too, because they are all unhappy. So you have to learn to slow down. That is the first and most important rule for a househusband.
There is something else the househusband must learn. You must learn to show how you feel about things. At work, men usually do not talk about feelings. If they do, people think they are strange. So, many men are not used to telling anyone about their feelings. They do not know how to talk about their anger, worries, or love. But children need to know how you feel. They need to know how much you love them. If you are angry, they need to know why. Your wife also needs to know about your feelings. If you do not say anything, your family may get the wrong idea. Then there may be serious problems.
People talk a lot about househusbands these days. Usually they talk about men doing the housework, the cooking, cleaning, and shopping. But in my opinion, these are the easiest things to learn. It was much harder for me to change the way I think and the way I act with my family. I think, other men will also find this harder, but, like me, will find it necessary if they want to have a happy family!
Ted Diamond

The househusband has to learn             .

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 great debate, “Is cheerleading a sport?” It’s the topic that will get any cheerleader fired up and ready to defend their side. The definition of sport from the Oxford Dictionary is “An activity involving physical exertion and skill in which an individual or team competes against another or others for entertainment.” Cheer has a competitive nature and it takes both mental and physical ability to succeed. Hollywood has made the “cheerleading character” into a fantasy where all the boys are after them, they’re dumb and they parade around in short skirts. Of course you should never trust the appearance of movies because it’s Hollywood and not reality.
     First off, cheerleading has a purpose. The purpose is to encourage positivity and entertain at athletic games and events. Without cheerleaders the “circle of energy” in a game would be non-existent. It’s a sporting event tradition that has lasted for over 100 years.
     Also cheerleaders do train for what they do. Just as a football player would, cheerleaders train too. How else do you think the girls get thrown in the air and come down safely? Cheerleaders have to lift weights and do cardio just as any other athlete would. Stunting is the most exciting, entertaining, and dangerous part of cheerleading. Most injuries from cheer end up being concussions, broken bones, stitches, and not to mention the endless bruises. It ranks 1st in the catastrophic sports injuries for women and 2nd in all sports combined next to football.
     I believe every sport should have support from others because the athletes care and are passionate about what they do. Cheerleading has its challenges and rewards like every other sport and I believe it’s time for cheerleaders to be recognized for their hard work.

According to paragraph 1, in what sense is cheerleading considered a sport?

Paul Watson is an environmental activist. He is a man who believes that he must do something, not just talk about doing something. Paul believes in protecting endangered animals, and he protects them in controversial ways. Some people think that Watson is a hero and admire him very much. Other people think that he is a criminal.
On July 16th, 1979, Paul Watson and his crew were on his ship, which is called the Sea Shepherd. Watson and the people who work on the Sea Shepherd were hunting on the Atlantic Ocean near Portugal. However, they had a strange prey; instead of hunting for animals, their prey was a ship, the Sierra. The Sea Shepherd found the Sierra, ran into it and sank it. As a result, the Sierra never returned to the sea. The Sea Shepherd, on the other hand, returned to its home in Canada. Paul Watson and his workers thought that they had been successful.
The Sierra had been a whaling ship, which had operated illegally. The captain and crew of the Sierra did not obey any of the international laws that restrict whaling. Instead, they killed as many whales as they could, quickly cut off the meat, and froze it. Later, they sold the whale meat in countries where it is eaten.
Paul Watson tried to persuade the international whaling commission to stop the Sierra. However, the commission did very little, and Paul became impatient. He decided to stop the Sierra and other whaling ships in any way that he could. He offered to pay $25,000 to anyone who sank any illegal whaling ship, and he sank the Sierra. He acted because he believes that the whales must be protected. Still, he acted without the approval of the government; therefore, his actions were controversial.
Paul Watson is not the only environmental activist. Other men and women are also fighting to protect the Earth. Like Watson, they do not always have the approval of their governments, and like Watson, they have become impatient. Yet, because of their concern for the environment, they will act to protect it.

The Sea Shepherd was hunting  ...............

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 word robot first appeared in a 1921 stage play by Czech writer Karel Capek. In the play, a man makes a machine that can think, which he calls a robot and which ends up killing its owner. In the 1940s, the American science fiction writer Isaac Asimov wrote a series of stories about robots and invented the term robotics, the science of robots. Meanwhile, in the real world, the first robots were developed by an engineer, Joseph F. Engelberger, and an inventor, George C. Devol. Together they started Unimation, a manufacturing company that produces the first real robot in 1961, called the Unimate. Robots of this type were installed at a General Motors automobile plant and proved to be a success. They worked reliably and saved money for General Motors, so other companies were soon acquiring robots as well.
These industrial robots were nothing like the terrifying creatures that can often be seen in science fiction films. In fact, these robots looked and behaved nothing like humans. They were simply pieces of computer-controlled machinery, with metal “arms” or “hands”. Since they were made of metal, they could perform certain jobs that were difficult or dangerous for humans, particularly jobs that involve high heat. And since robots were tireless and never got hungry, sleepy, or distracted, they were useful for tasks that would be tiring or boring for humans. Industrial robots have been improved over the years, and today they are used in many factories around the world. Though the use of robots has meant the loss of some jobs, at the same time other jobs have been created in the design, development, and production of the robots.

What can be said about Karel Capek?

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Vietnam’s population is ageing quickly. In 2017, more than 10 per cent of the population will be 60 and older, and in 15-20 years the elderly will account for one third of the total population. This raises concerns about healthcare, welfare and pensions for the elderly at a time when Vietnam is focusing on economic integration and requires a large labor force. So far two solutions have been proposed: to loosen the two-child policy and to increase the retirement age to 58 for women and 62 for men. By ending the two-child policy the government expects to make up for the ageing population within the next 20
years. But its effect could be creating an uncontrollable boom in the Vietnamese population. When the government loosened the two-child policy in 2015 in a trial period, in the first 6 months of 2016 the third child birth rate increased remarkably by 7.5 per cent
Raising the retirement age has been proposed by the Ministry of Labor pending parliamentary evaluation in May 2017. While the policy is beneficial in utilizing the work experience of the elderly while creating savings in the pension budget, it also means fewer job prospects and promotion opportunities for younger generations. It is also not in the interest of all the elderly, especially the 70 per cent of Vietnam's labor force working in manual labor-intensive sectors such as agriculture, manufacturing and construction where working above the age of 50 can be dangerous and unproductive. Despite these drawbacks, raising the retirement age is still considered by policymakers as one of the key solutions to the ageing population problem in Vietnam. However, these are only temporary solutions.

Which statement is probably TRUE according to the information in the paragraph 1?

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:
Telecommuting-substituting the computer for the trip to the job-has been hailed as a solution to all kinds of problems related to office work. For workers, it promises freedom from the office, less time wasted in traffic, and help with child-care conflicts. For management, telecommuting helps keep high performers on board, minimizes tardiness and absenteeism by eliminating commutes, allows periods of solitude for high-concentration tasks, and provides scheduling flexibility. In some areas, such as Southern California and Seattle, Washington, local governments are encouraging companies to start telecommuting programs in order to reduce rush-hour congestion and improve air quality, but these benefits do not come easily. Making a telecommuting program work requires careful planning and an understanding of the differences between telecommuting realities and popular images.
Many workers are seduced by rosy illusions of life as a telecommuter. A computer programmer from New York City moves to the tranquil Adirondack Mountains and stays in contact with her office via computer. A manager comes into his Office three days a week and works at home the other two. An accountant stays home to care for child; she hooks up her telephone modem connections and does office work between calls to the doctor.
These are powerful images, but they are a limited reflection of reality. Telecommuting workers soon learn that it is almost impossible to concentrate on work and care for a young child at the same time. Before a certain age, young children cannot recognize, much less respect, the necessary boundaries between work and family. Additional child support is necessary if the parent is to get any work done.
Management, too, must separate the myth from the reality. Although the media has paid a great deal of attention to telecommuting, in most cases it is the employee’s situation, not the availability of technology, that precipitates a telecommuting arrangement.
That is partly why, despite the widespread press coverage, the number of companies with work-at-home programs or policy guidelines remains small.

Which of the following is NOT mentioned as a problem for employers that is potentially solved by telecommuting?

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.

There are already many, many people who have passed the landmark age of 100. In fact, there are now so many healthy, elderly people that there's a new term for them: the wellderly. These are people over the age of 80 who have no diseases such as high blood pressure, heart disease or diabetes and have never taken medicines for these conditions.

There have been many scientific studies of communities where a healthy old age is typical. These include places like Calabria in southern Italy and the island of Okinawa in Japan.

The small village of Molochio in Calabria has about 2,000 inhabitants. And of these there are at least eight centenarians. When researchers ask people like this the secret of their long life, the answer is almost always to do with diet and is almost always the same: 'I eat a lot of fruit and vegetables.' 'A little bit, but of everything.’ ‘No smoking, no drinking.’

While in the past scientists have looked at things such as diet and lifestyle for an explanation of long life, these days they are investigating genetics. One such researcher is Eric Topol, who says, "There must be genes that explain why these individuals are protected from the aging process."

The new research into long life looks at groups of people who have a genetic connection. For example, one group of interest lives in Ecuador. In one area of the country there are a number of people with the same genetic condition. It's called Laron syndrome. The condition means that they don't grow to more than about one, but it also seems to give them protection against cancer and diabetes. As a result, they live longer than other people in their families. Meanwhile, on the Hawaiian island of Oahu, there's another group of long-lived men, Japanese-Americans. They have a similar gene to the Laron syndrome group.

Back in Calabria, scientists are trying to work out exactly how much of the longevity is due to genetics and how much to environment. By checking public records going back to the 19th century, researchers have reconstructed the family trees of 202 nonagenarians and centenarians. They concluded that there were genetic factors involved.

Diabetes, heart disease and high blood pressure ___________.

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:
By mid-century, there will likely be 9 billion people on the planet, consuming ever more resources and leading ever more technologically complex lives. What will our cities be like? How much will artificial intelligence advance? Will global warming trigger catastrophic changes, or will we be able to engineer our way out of the climate change crisis?
Making predictions is, by nature, a dicey business, but to celebrate the 40th anniversary of Smithsonian magazine Big Think asked top minds from a variety of fields to weigh in on what the future holds 40 years from now. The result is our latest special series, Life in 20 50. Demographic changes in world population and population growth will certainly be dramatic. Rockefeller University mathematical biologist Joel Cohen says it's likely that by 2050 the majority of the people in the world will live in urban areas, and will have a significantly higher average age than people today. Cities theorist Richard Florida thinks urbanization trends will reinvent the education system of the United States, making our economy less real estate driven and erasing the divisions between home and work.
Large migrations from developing countries like Indonesia, Malaysia, Bangladesh, Mexico, and countries in the Middle East could disrupt western governments and harm the unity of France, Germany, Spain, the Netherlands, Poland, and the United Kingdom under the umbrella of the European Union.
And rapidly advancing technology will continue ever more rapidly. According to Bill Mitchell, the late director of MIT's Smart Cities research group, cities of the future won't look like "some sort of science -fiction fantasy" or "Star Trek" but it's likely that "discreet, unobtrusive" technological advances and information overlays, i.e. virtual reality and augmented reality, will change how we live in significant ways. Self-driving cars will make the roads safer, driving more efficient, and provide faster transports. A larger version of driverless cars-driverless trucks-may make long haul drivers obsolete.
Meanwhile, the Internet will continue to radically transform media, destroying the traditional model of what a news organization is, says author and former New York Times Public Editor, Daniel Okrent, who believes the most common kinds of news organizations in the future will be "individuals and small alliances of individuals” reporting and publishing on niche topics.

The word "trigger" in the first paragraph could be best replaced by     .

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. 
Called the ‘Red Planet,’ Mars is roughly half the size of Earth, and one of our closest neighboring planets. Though Mars is the most Earth-like of any other planet, the two are still worlds apart. Living on Mars has been the stuff of science fiction for decades. However, can humans really live on Mars? Will it ever be possible or safe? NASA (the National Aeronautics and Space Administration) hopes to find out. NASA researchers on Earth are conducting several experiments together with the International Space Station (ISS) to study the health and safety issues that may tell us if life on Mars is possible.
Food and oxygen would be the main necessities for travelers living extended periods on Mars. The need to grow plants, which provide both food and oxygen, would be a key. But the decreased gravity and low atmospheric pressure environment of the planet will stress the plants and make them hard to grow. However, space station crews are growing plants in controlled environments in two of the station’s greenhouses. They take care of the plants, photograph them, and collect samples to be sent back to Earth. Researchers then use the data to develop new techniques that will make it possible to grow plants successfully in space. 
Another concern for space travelers is the health hazards posed by the effect of space radiation on humans. A spacecraft traveling to Mars would be exposed to large amounts of radiation. Since human exposure to such intense radiation would mean certain death, the spacecraft used for such travel would have to protect the humans on the inside of the craft from exposure. Researchers are using special machines inside the crew areas of the International Space Station to carefully watch radiation levels. NASA scientists, who have maintained radiation data since the beginning of human space flight, continue to learn about the dangers it poses. Researchers use the station to test materials that could be used in making a spacecraft that could successfully travel to Mars.
Will it ever be safe for humans to live on Mars? It is still too early to say. But thanks to the dedicated researchers of NASA and the results of ISS experiments, we are getting closer to knowing every day. 
(Adapted from “Select Readings –Intermediate Tests” by Linda Lee and Erik Gundersen)

As mentioned in paragraph 2, why can’t people grow plants successfully in space?

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:
By mid-century, there will likely be 9 billion people on the planet, consuming ever more resources and leading ever more technologically complex lives. What will our cities be like? How much will artificial intelligence advance? Will global warming trigger catastrophic changes, or will we be able to engineer our way out of the climate change crisis?
Making predictions is, by nature, a dicey business, but to celebrate the 40th anniversary of Smithsonian magazine Big Think asked top minds from a variety of fields to weigh in on what the future holds 40 years from now. The result is our latest special series, Life in 20 50. Demographic changes in world population and population growth will certainly be dramatic. Rockefeller University mathematical biologist Joel Cohen says it's likely that by 2050 the majority of the people in the world will live in urban areas, and will have a significantly higher average age than people today. Cities theorist Richard Florida thinks urbanization trends will reinvent the education system of the United States, making our economy less real estate driven and erasing the divisions between home and work.
Large migrations from developing countries like Indonesia, Malaysia, Bangladesh, Mexico, and countries in the Middle East could disrupt western governments and harm the unity of France, Germany, Spain, the Netherlands, Poland, and the United Kingdom under the umbrella of the European Union.
And rapidly advancing technology will continue ever more rapidly. According to Bill Mitchell, the late director of MIT's Smart Cities research group, cities of the future won't look like "some sort of science -fiction fantasy" or "Star Trek" but it's likely that "discreet, unobtrusive" technological advances and information overlays, i.e. virtual reality and augmented reality, will change how we live in significant ways. Self-driving cars will make the roads safer, driving more efficient, and provide faster transports. A larger version of driverless cars-driverless trucks-may make long haul drivers obsolete.
Meanwhile, the Internet will continue to radically transform media, destroying the traditional model of what a news organization is, says author and former New York Times Public Editor, Daniel Okrent, who believes the most common kinds of news organizations in the future will be "individuals and small alliances of individuals” reporting and publishing on niche topics.

Which of the following best describes the author’s attitude about the life in 2050?

Choose the best answer:
The expression on your face can actually dramatically alter your feelings and perceptions, and it has been proved that (1) _______ smiling or frowning can create corresponding emotional responses. The idea was first (2) _______ by a French physiologist, Israel Waynbaum, in 1906. He believed that different facial (3) _______ affected the flow of blood to the brain, and that this could create positive or negative feelings. A happy smile or irrepressible laughter increased the blood flow and contributed to joyful feelings. But sad, angry expressions decreased the flow of oxygen- carrying blood, and created a vicious (4) _______ of gloom and depression by effectively (5) _______ the brain of essential fuel.

Psychologist Robert Zajonc rediscovered this early research, and (6) ____ that the temperature of the brain could affect the production and synthesis of neurotransmitters which definitely influence our moods and energy levels. He argues that an impaired blood flow could not only deprive the brain of oxygen, but create further chemical imbalance by inhibiting these vital hormonal messages. Zajonc goes on to propose that our brains remember that smiling is associated with being happy, and that by deliberately smiling through your tears you can (7) ____ your brain to release uplifting neurotransmitters – replacing a depressed condition with a happier one. People suffering from psychosomatic illness depression and anxiety states could (8) _____ from simply exercising their zygomatic (9) ____ which pull the corners of the mouth (10) ____ to form a smile, several times an hour.
2.

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 hard, rigid plates that form the outermost portion of the Earth are about 100 kilometers thick. These plates include both the Earth's crust and the upper mantle. The rocks of the crust are composed mostly of minerals with light elements, like aluminum and sodium, while the mantle contains some heavier elements, like iron and magnesium. Together, the crust and upper mantle that form the surface plates are called the lithosphere. This rigid layer floats on the denser material of the lower mantle the way a wooden raft floats on a pond. The plates are supported by a weak, plastic layer of the lower mantle called the asthenosphere. Also like a raft on a pond, the lithospheric plates are carried along by slow currents in this more fluid layer beneath them.
With an understanding of plate tectonics, geologists have put together a new history for the Earth's surface. About 200 million years ago, the plates at the Earth's surface formed a “supercontinent” called Pangaea. When this supercontinent started to tear apart because of plate movement, Pangaea first broke into two large continental masses with a newly formed sea that grew between the land areas as the depression filled with water. The southern one — which included the modern continents of South America, Africa, Australia, and Antarctica — is called Gondwanaland. The northern one — with North America, Europe, and Asia — is called Laurasia. North America tore away from Europe about 180 million years ago, forming the northern Atlantic Ocean. Some of the lithospheric plates carry ocean floor and others carry land masses or a combination of the two types. The movement of the lithospheric plates is responsible for earthquakes, volcanoes, and the Earth's largest mountain ranges. Current understanding of the interaction between different plates explains why these occur where they do. For example, the edge of the Pacific Ocean has been called the “Ring of Fire” because so many volcanic eruptions and earthquakes happen there. Before the 1960's, geologists could not explain why active volcanoes and strong earthquakes were concentrated in that region. The theory of plate tectonics gave them an answer.

With which of the following topics is the passage mainly concerned?