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Forget global terrorism - for most of the world's population, ticking time bombs like earthquakes, supervolcanoes and hurricanes pose a far greater threat. Natural disaster expert Bill McGuire reveals a few of the top catastrophes waiting to happen. With NASA's eminent climate scientist, Jim Hansen, concerned that collapsing polar ice sheets could result in sea levels rising 1-2m this century and several more in the next, prospects for the Earth's coastal zones are bleak. A 1m rise would threaten one third of the world's agricultural land, while a 4m rise would maroon Miami 60km offshore. Rising sea levels is not the only threat to coastal regions. The Cumbre Vieja volcano on the Canary Island of La Palma is slowly creeping seawards. During a future eruption, this gigantic landslide will plunge into the ocean, pushing up a bulge of water close to a kilometre high, spawning a mega-tsunami capable of devastating all the coastal areas surrounding the North Atlantic. Coastal regions also face the menace of desertification. By 2030, over half a billion people living around the shores of the Mediterranean will be viewing the encroaching desert with increasing panic. An area bigger than the UK, and home to 16 million people, is threatened - by the end of the century- with transformation from a green and pleasant land to a baking wilderness of sand and rock. However, these disasters seem pale in comparison to the mega-catastrophes waiting to happen like supervolcanoes, for instance. Every 50 millennia or so, a colossal volcanic blast expels sufficient ash and gas to cover a continent and block the Sun's rays for years on end, heralding a bitter volcanic winter. At Yellowstone in Wyoming, US, two such super-eruptions have shattered the crust in the last 2.1 million years and the volcano there remains restless. An asteroid attack is another threat which would have devastating consequences. A total of 713 asteroids with diameters of 1km or more, and the potential to clobber the Earth at some future date, have been identified. A 2km asteroid would load the atmosphere with dust and trigger a sustained global freeze. Harvests would fail and billions would die. Fortunately, such collisions only happen every couple of million years.
1. Which best serves as the title for the passage?

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Higher Education in the UK Students who have successfully completed an A-level course may go to university to do (1)_____ three- or four-year course leading to a first degree such as Bachelor of Arts (BA), Bachelor of Science (BSc), etc. They apply to several universities which then (2)_____ an offer of a place specifying the minimum grades the student needs to obtain in the A level subjects studied. Higher education is not (3)_____. In principle, students have to pay a contribution to the cost of teaching (tuition fees) and have also to pay their living costs (maintenance). The government provides (4)_____ to help them pay for university education which have to be paid back from earnings once their income reaches a certain (5)_____. In recent years government policy has been to (6)_____ the percentage of 18-year olds (7)_____ go to university, which is now, at 40%, double the 1990 figure, but this growth has been at the (8)______ of the amount of financial support given to individual students. Universities receive money (9)_____ the state for each student and are responsible for employing staff and deciding which courses to offer. The head of a university, who is (10)_____ for its management, is called a vice-chancellor

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The American southwest is full of deserts. If you ever go there, you might get to see a very strange event. We are talking something called the sailing stones. Sometimes, stones in the southwestern desert move by themselves. Wind doesn’t seem to push them. People and animals don’t touch them. However, these stones still move. Sometimes they travel more than a hundred meters. They always leave a trail in the sand behind them. This is useful because we can look at the trail and figure out how far a stone has moved. How is this possible? How can stones move all by themselves? Scientists have been studying this for years. People have offered all kinds of theories. One of the earliest theories was that wind pushes the stones. That theory isn’t correct, because some of the stones weigh more than 300 kilograms. When it seemed like there was no logical explanation for the sailing stones, people started coming up with crazier ideas. Some people said that aliens were moving the stones, and others said that clever people were playing a joke. Finally, in 2013, a scientist came up with an explanation for the sailing stones. This scientist normally studies weather on other planets, and when he heard about the sailing stones, he became interested in them. He found out that ice forms on the bottom of the stones. When that happens, even a very light wind can push the stone for long distances. To prove his theory, the scientist did an experiment. He put a rock in his freezer and let some ice form on it. Then, he put sand and a little water in a tray. Finally, he put his frozen rock on top of the sand. When he blew on the rock, it moved. Even when he blew very gently, he had no problems moving the rock. Here is something interesting about the sailing stones. Curious people visit the desert in the southwest to see them. A lot of those people don’t like to hear the scientific explanation for the sailing stones. Many people prefer to feel that the stones are still a mystery.
1. What was the first theory about the sailing stones?

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Many children have an imaginary friend - that is a friend they have invented. It was once thought that only children (26) _______ had difficulty in creating relationships with others had imaginary friends. In fact, having an imaginary friend is probably a common aspect of a normal childhood (27) _______ many children with lots of real friends also have an imaginary friend. The imaginary friend may help some children cope with emotional difficulties, but for (28) _______, having an imaginary friend is just fun. There is no firm evidence to say that having an imaginary friend (29) _______ us anything about what a child will be like in the future. One (30) _______ of research, though, has suggested that adults who once had imaginary friends may be more creative than those who did not.

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Edward Patrick Eagan was born on April 26th 1897 in Denver, Colorado, and his father died in a railroad accident when Eagan was only one year old. He and his four brothers were raised by his mother, who earned a small income from teaching foreign languages. Inspired by Frank Marriwell, the hero of a series of popular novels for boys, Eagan pursued an education for himself and an interest in boxing. He attended the University of Denver for a year before serving in the U.S. army as an artillery lieutenant during World War I. After the war, he entered Yale University and while studying there, won the US national amateur heavyweight boxing title. He graduated from Yale in 1921, attended Harvard Law School, and received a Rhodes scholarship to the University of Oxford where he received his A.M. in 1928. While studying at Oxford, Eagan became the first American to win the British amateur boxing championship. Eagan won his first gold medal as a light heavyweight boxer at the 1920 Olympic Games in Antwerp, Belgium. Eagan also fought at the 1924 Olympics in Paris as a heavyweight but failed to get a medal. Though he had taken up the sport just three weeks before the competition, he managed to win a second gold medal as a member of four-man bobsled team at the 1932 Olympics in Lake Placid, New York. Thus, he became the only athlete to win gold medals at both the Summer and Winter Olympics.
1. What is the main idea of the passage?

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Few people have packed more into a day trip than Michael and Lillian Long from Kent who took the ferry from their home in England to Boulogne in France in 1987. On Easter Sunday this adventurous couple went for a short walk around the town. In no time they were spectacularly lost and showing all the qualities of born explorers. 'We walked and walked,' Mrs Long recalled, 'and the further we walked to try to get back, the further we walked away from Boulogne.' Unable to speak French, they felt embarrassed about asking the way, so they walked throughout the night until finally the next morning a driver gave them a lift to a small village they did not recognise. Here they caught a train to the wrong destination - Paris. In the French capital they spent all their remaining money on catching what they thought was the express train back to Boulogne. After an enjoyable trip they arrived in Luxembourg on Monday. Two hours later police put them on the train back to Paris, but it divided and their half ended up in Basel, an attractive medieval town in the north of Switzerland. Having no money, they tried to find work, but without success. The railway company offered them a free ticket to Belfort, thinking that this was where they had come from. Once they got off the train, our heroes hiked forty-two miles to Vesoul, hitched a lift to Paris and then nearly boarded the train to Bonn in Germany. Diverted just in time to the right platform, they finally reached Boulogne a week after they had set out on their walk. They had covered a distance of almost 1,700 km without luggage, maps or any idea of where they were. When he arrived at Dover harbour, Mr Long said it was the first time they had travelled abroad and that they would not be leaving England again.
1. What could be the best title for the passage?

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People have five senses. We have a sense of sight, hearing, smell, touch, and taste. Believe (31) _________, your sense of smell is very important. Our nose tells us about our environment. When your nose smells something, it sends information to our brain. Smells tell us if there is danger nearby, or if there is something to eat. Of course, these tools were more useful in the past, but they still come (32) _________ today. The things you smell can affect your (33) _________. If you smell something nice, you are more likely to be happy. On the other hand, if you smell something unpleasant, you are more likely to be unhappy. That is (34) _________ there are so many businesses that work to create nice scents. Businesses also work on the best ways to deliver scents to people’s noses. Candles (35) _________ a whole room smell better. Oils and soaps also have health benefits.

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
The heart has long been considered to be (1) _______ feelings of love dwell. In love songs throughout the ages, love almost always goes together (2) _______  the heart. The heart has continuously been viewed (3) _______ the place where love begins and develops. Even the Bible gives (4) _______ to love and the heart. The role of the heart in love must come from what happens to it when a person feels strongly (5) _______ to someone. The strong feelings (6) _______ the other person, especially in the early stages of a relationship, have the results that the heart starts beating faster and breathing starts speeding (7) _______.According to psychologists, a love relationship is a situation that (8) _______ a lot of stress and the body reacts to this by getting ready to face the unknown. This has been called the "fight or flight" (9) _______, meeting danger by fighting it or running away. So with love, the heart accelerates and (10) _______ becomes quick

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Phong Nha-Ke Bang National Park is located in the middle of the Annamite Mountain Range in Quang Binh province, Vietnam, and shares its boundary (23) ____ the Hin Namno Nature Reserve in the Lao PDR to the west. The property (24) ____ an area of 123,326 ha and contains terrestrial and aquatic habitats, primary and secondary forest, sites of natural regeneration, tropical dense forests and savanna and is rich in large, often spectacular and scientifically significant caves.  The property contains and protects over 104 km of caves and underground rivers making (25) ____ one of the most outstanding limestone karst ecosystems in the world. (26) ____ karst formation has evolved since the Palaeozoic period (some 400 million years ago) and as such is the oldest major karst area in Asia. (27) ____ to massive tectonic changes, the karst landscape is extremely complex, comprising a series of rock types that are interbedded in complex ways and with many geomorphic features. The karst landscape is not only complex but also ancient with high geodiversity and geomorphic features of considerable significance.

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For more than a century, Western philosophers and psychologists have based their discussions of mental life on a cardinal assumption: that the same basic processes underlie all human thought, whether in the mountains of Tibet or the grasslands of the Serengeti. Cultural differences might dictate what people thought about. Teenage boys in Botswana, for example, might discuss cows with the same passion that New York teenagers reserve for sports cars. But the habits of thought - the strategies people adopted in processing information and making sense of the world around them - were, Western scholars assumed, the same for everyone, exemplified by, among other things, a devotion to logical reasoning, a penchant for categorization and an urge to understand situations and events in linear terms of cause and effect. Recent work by a social psychologist at the University of Michigan, however, is turning this long-held view of mental functioning upside down. In a series of studies comparing European Americans to East Asians, Dr. Richard Nisbett and his colleagues have found that people who grow up in different cultures do not just think about different things: they think differently. We used to think that everybody uses categories in the same way, that logic plays the same kind of role for everyone in the understanding of everyday life, that memory, perception, rule application and so on are the same," Dr. Nisbett said. "But we're now arguing that cognitive processes themselves are just far more malleable than mainstream psychology assumed." In many respects, the cultural disparities the researchers describe mirror those described by anthropologists, and may seem less than surprising to Americans who have lived in Asia. And Dr. Nisbett and his colleagues are not the first psychological researchers to propose that thought may be embedded in cultural assumptions: Soviet psychologists of the 1930's posed logic problems to Uzbek peasants, arguing that intellectual tools were influenced by pragmatic circumstances. Still, to the extent that the studies reflect real differences in thinking and perception, psychologists may have to radically revise their ideas about what is universal and what is not, and to develop new models of mental processes that take cultural influences into account.
7. Which of the following can be inferred from the passage?

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When engineer Tsutomu Takada lost his job, he decided to make a complete change in his life. He took off his business suit and put on an apron – and started a course to become a chef. “I had always dreamed of doing this, even when I was an engineer” says Takada. “And now, here I am” he says with a laugh. He is a student at Tokyo’s Sushi University. This is the only university in Japan which is devoted entirely to teaching the art of sushi. What is “sushi”? It is Japan’s famous dish of raw fish, dried seaweed and rice soaked in vinegar. Traditionally, it takes decades of training to become a sushi chef, but Sushi University trains chefs in one year. As well as providing quick retraining, the university’s approach reflects a growing change in Japanese society – a move away from the tradition a way of doing things. “Society has changed” sighs university principal Katsuji Konkani. Sushi started as a sushi apprentice more than sixty years ago. “People today wouldn’t put up with the tough training I had. When I made mistakes, my teacher hit me on the head with his knife handle!” Sushi hasn’t always been a matter of studying hard and being hit on the head. It started in ancient China, where people preserved fish by packing it in rice and salt. They did not eat the rice. It is said that this process probably came to Japan between 300 BC and AD 300. Adventurous Japanese cooks began to serve the pickled fish together with vinegared rice. This combination of rice and fish was called “sushi”. The most important thing about sushi is that it has to look attractive. In fact, the most carefully prepared sushi meals can cost hundreds of dollars! There are 45,000 sushi businesses in Japan today, including take- away, as some people like to eat it for lunch in their offices. There are also cheap self-service restaurants, where customers sit at a counter which has different colored plates with different types of sushi on them. These plates move around the counter on a conveyor belt, and customers choose the sushi they want to eat. When they have finished eating, the waitress counts the colored plates and works out the bill. Mr. Konkani has made sushi for Japan’s emperor. He says sushi preparation is an art, but he also believes that Sushi University’s intensive course is necessary. “Of course people complain this is not the way to do it” he says, “but we tried to make it easier for those who wanted to learn about sushi, and for those who want to take it overseas”. Many of the students already have jobs lined up in places like Australia, Italy and Singapore.
But the course is really just the beginning of the new chefs. According to Mr. Konkani, it takes five, ten or even twenty years to become a top- notch sushi chef. “To make good sushi, you have to have skill but you also need a warm heart” he says.
6. Which of the following is TRUE, according to the passage?

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Today, supermarkets are found in almost every large city in the world. But the first supermarket (26)_________opened only fifty years ago. It was opened in New York by a man named Michael Cullen. A supermarket is different (27)___________other types of stores in several ways. In supermarkets, goods are placed on open shelves. The (28)__________ choose what they want and take them to the checkout counter. This means that fewer shop assistants are needed than in other stores. The way products are displayed is another difference between supermarkets and many other types of stores; (29)__________ example, in supermarkets, there is usually a display of small inexpensive items just in front of the checkout counter: candies, chocolates, magazines, cheap foods and so on. Most customers (30)__________go to a supermarket buy goods from a shopping list. They know exactly what they need to buy. They do the shopping according to a plan

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The ability to weep is a uniquely human form of emotional response. Some scientists have suggested that human tears are (1) _____ of an aquatic past, but this does not seem very likely. We cry from the moment we enter this world, for a number of reasons. Helpless babies cry to persuade their parents that they are ill, hungry or uncomfortable. As they (2) _____, they will also cry just to attract parental attention and will often stop when they get it. The idea that having a good cry do you (3) _____ is a very old one and now it has scientific validity since recent research into tears has shown that they (4) _____ a natural painkiller called enkaphalin. By fighting sorrow and pain, this chemical helps you feel better. Weeping can increase the quantities of enkaphalin you (5) _____. Unfortunately, in our society, we impose restrictions upon this naturally (6) _____ activity. Because some people still regard it as a (7) _____ of weakness in men, boys in particular are admonished when they cry. This kind of repression can only increase stress, both emotionally and physically. Tears of emotion also help the body (8) _____ itself of toxic chemical waste, for there is more protein in them than in tears resulting from cold winds or other irritants. Crying comforts and calms can be very enjoyable - (9) _____ the popularity of highly emotional films which are commonly (10) _____ ―weepies‖. It seems that people enjoy crying together almost as much as laughing together

Read the following dialogue and then choose the best answer A, B, C, D:

"Teacher: Good morning. Minh. Do you (1).....................      in town?
Minh : Yes, I live in (2).....................        apartment.
Teacher: Is (3)...................... a supermarket near the apartmenr?
Minh : Yes, there’s also a bank, a clinic (4)       ........... a hotel.
Teacher: Are there any (5).............. near it?
Minh Yes, there (6)............... a toy store, a bakery, a drugstore and two bookstores.                   
Teacher: Is it (7) ....... there? 
Minh No, it’s very (8) ................"

1. Do you (1).....................      in town?

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A healthy diet is essential for maintaining a healthy body and a healthy lifestyle. Though some doctors and health experts disagree on some components of a healthy diet, other parts are almost universally recognized. For example, all agree that a healthy diet includes necessary nutrients - ingredients that help keep bodies strong and healthy. Human bodies need more than 50 different kinds of nutrients, including vitamins, minerals, water, and fiber.  Vitamins are natural substances found in plants and animals. A body cannot make its own vitamins, so it must get them from food. Vitamins do not supply energy. However, they are useful substances that the body needs. Vitamin A, for example, helps eyes see better. Vitamin B develops protein needed in muscle growth. Vitamin C helps support the healing process for certain illnesses. Finally, Vitamin D helps strengthen teeth and bones  Minerals help balance bodily fluids, such as blood and water. They are also an important part of the iron in blood. There are seven major minerals that bodies need in large amounts, and ten minor, or trace, minerals, which bodies need in smaller amounts. Scientists are still studying many minerals, such as nickel and cobalt, to try to understand exactly how they affect the human body.  Some people do not include water as a nutrient, but it is vital for a healthy body to function properly. Humans can live for several days without food, but only for two or three days without water. People who play sports or exercise a lot often fail to drink enough water. This can cause their muscles to become overly tired. If not enough water is taken in during very strenuous exercise, death may in fact result. Scientists have learned much about the importance of fiber in recent years. They now say that many people do not get enough fiber in their diets. The average many people should eat between 30 and 40 grams of fiber each day, twice as much as the average person currently gets. Though fiber is not digested or absorbed, it helps rid the body of waste products. Fiber helps control weight and maintain normal levels of important substances such as cholesterol and blood sugar. Fiber is found in whole-grain breads and cereals, as well as nuts, beans, fruits, and vegetables. There are several different kinds of fiber, and they each help in different ways. Two kinds of fiber, called pectins and gums, are needed to help control body fats, cholesterol, and carbohydrates (a type of nutrient that produces energy). Apples, cranberries, and cherries are good sources of pectin. Oatmeal and legumes are good s general, fresh fruits and raw vegetables provide more fiber than peeled fruits and cooked vegetables. According to dieticians, two servings of vegetables and two servings of whole grains (like whole wheat bread) each day will provide enough fiber for most adults.  In summary, recommendations for a healthy diet include drinking lots of liquids while eating fiber from a wide variety of foods. This way, the body will not be getting too much of one kind of fiber and too little of another kind. If a person is not eating enough fiber now, it is best to change one's diet gradually. Above all, experts warn, do not depend on getting fiber from pills or tablets. A whole bottle would need to be consumed to see any benefit. 
1. According to paragraph 1, what are nutrients?

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For athletes who like to (31) _________ a variety of endurance sports in a single race, triathlons are a great fit. These competitions (32) _________ running, cycling, and swimming into one race, and they take place one after the other in a single continuous timed race. Athletes who participate must be in top physical form and have the skills needed to complete each portion of the race. Training for triathlons means the athletes have to become proficient not only in the sport required in each stage, but they also have to become familiar with what (33) _________ from one to the other does to their bodies. Many inexperienced triathletes are surprised to (34) _________ hard it can be to switch from swimming to cycling to running, and how tired their muscles can suddenly feel. One thing all triathletes can agree (35) _________ is that no one ever told them that running a triathlon would be easy

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The Atacama Desert is situated in South America. It is found near (23) _______thirtieth parallel south of the equator. (24) _______, the Sahara and the Rub’al-Khali deserts of northern Africa and nearby Saudi Arabia are 30° north of the equator. (25) _______the Kalahari Desert of Southern Africa is about 30° south of it. The Gobi Desert of central Asia (26) _______a little farther than 30° north, at about 45°, while the Great Sandy and Gibson deserts of Australia fall back into the pattern, lying 30° south of the equator. This pattern is no (27) _______. All the hot deserts are found about the same distance north or south of the equator.

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There is a natural balance to all things: life and death, good and bad, happiness and sadness, pleasure and pain. The very idea that you should focus on positives and ignore negatives, likewise with strengths versus weaknesses, is not only delusional; it's a recipe for disaster. Let me tell you a couple of stories to show how dealing with reality as openly and genuinely as possible is the path to success and happiness, while focusing only on the positives and strengths can destroy your career and your company. It's no secret that Steve Jobs was forced out of Apple in 1984 because his management style had become toxic to the company. Much later, Jobs would come to realize that getting fired from the company he cofounded "was the best thing that could have ever happened” to him. He called it “awful-tasting medicine" that "the patient needed." He also likened it to life hitting him in the head with a brick. That forced Jobs to look in the mirror and see the truth - that he wasn't as capable or as strong a leader as he could be. And as he addressed the issues that stood in his way, the result was the founding of NeXT and Pixar, his eventual return to Apple, and the greatest turnaround in corporate history that built the most valuable company on Earth. It's easy to miss the obvious connection staring us right in the face, that it wasn’t just Apple that had hit a wall, fallen on hard times, and found itself in need of a turnaround. The same was true of Jobs. And there was an undeniable connection between the two. It's also easy to miss the insightfulness of Jobs' realization that none of his later achievements would have occurred if he hadn't faced reality. That sort of introspection only comes from someone who's had some sort of intervention and gone through gut-wrenching change as a result. Not to compare myself with Jobs, but the truth is I've gotten a couple of those bricks to the head myself. I've been fired more than once and lost my wife early in our marriage. But in every case I looked in the mirror, faced what I saw, made some changes, and bounced back stronger than ever. If I'd just tried to stay positive, focused on my strengths, and searched for the silver lining in the clouds, I never would have figured out what was wrong and become a better person, a better husband, and a better leader. I never would have achieved so much in my career or won my wife back. While life is full of ups and downs, one thing is certain: If you attempt to filter your consciousness and disallow negative thoughts or make believe the weaknesses holding you back don't exist, you'll never get past those hurdles and get to the next stage in your personal and professional development. And neither will your business.
10. The tone of the passage is ____.

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When you wake up in the morning, do you assume that you're going to have a great day or that you're going to have a difficult day? If you normally have positive expectations, you might consider yourself an optimist, and if your expectations are usually negative, you may be a pessimist. According to research done by the Mayo Clinic, optimism can have a strong positive effect on your health. Their research shows that optimists may live longer, get colds less often, and be less likely to suffer from cardiovascular disease. Optimists may even deal with stress better than pessimists do. If you think you might be a pessimist and would like to try to be more optimistic, pay attention to what some call “self-talk.” The term “self-talk” refers to the automatic thoughts that go through your head all the time. You know-the ideas, worries, beliefs, and hopes that run through your mind as you're driving, washing dishes, folding laundry. Are those thoughts negative like, “Everyone knows so much more than I do,” or positive like, “I'm learning a lot at this job”? If your self-talk is negative, there are some things you can do to steer it in a more positive direction. First, you can simply stop your negative self-talk. Every time you catch yourself thinking something negative, you can stop yourself by actually saying, “Stop,” out loud. Alternatively, you can revise your self-talk. For example, if you catch yourself saying, “I’m terrible at giving presentations,” revise that to a question like, “How can I improve my presentation skills?” Another idea is to think of yourself as a friend. When you “hear” a negative sentence go through your mind, think about whether or not you would feel comfortable saying it to a friend. If the sentence seems too mean to say to a friend, think about what would sound better
5. Which of the following is true, according to the passage?

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Few people have packed more into a day trip than Michael and Lillian Long from Kent who took the ferry from their home in England to Boulogne in France in 1987. On Easter Sunday this adventurous couple went for a short walk around the town. In no time they were spectacularly lost and showing all the qualities of born explorers. 'We walked and walked,' Mrs Long recalled, 'and the further we walked to try to get back, the further we walked away from Boulogne.' Unable to speak French, they felt embarrassed about asking the way, so they walked throughout the night until finally the next morning a driver gave them a lift to a small village they did not recognise. Here they caught a train to the wrong destination - Paris. In the French capital they spent all their remaining money on catching what they thought was the express train back to Boulogne. After an enjoyable trip they arrived in Luxembourg on Monday. Two hours later police put them on the train back to Paris, but it divided and their half ended up in Basel, an attractive medieval town in the north of Switzerland. Having no money, they tried to find work, but without success. The railway company offered them a free ticket to Belfort, thinking that this was where they had come from. Once they got off the train, our heroes hiked forty-two miles to Vesoul, hitched a lift to Paris and then nearly boarded the train to Bonn in Germany. Diverted just in time to the right platform, they finally reached Boulogne a week after they had set out on their walk. They had covered a distance of almost 1,700 km without luggage, maps or any idea of where they were. When he arrived at Dover harbour, Mr Long said it was the first time they had travelled abroad and that they would not be leaving England again.
2. The word “qualities” in paragraph 1 is closest in meaning to _______ 

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Many people see large urban cities as a wonder of human imagination and creativity. They represent how far the human population has come in terms of community development. Despite its positive things, there are also negatives from urbanization on the physical health of humans living. As it would be expected, developing countries tend to see more negative physical health effects than modern countries in regard to urbanization. One example of a developing country experiencing these problems is China. China is a country that in the past 30-40 years went from being an agrarian based society to a significant industrialized country. This industrialization has in effect caused the need for more centralized cities, centralized meaning having lots of jobs and living spaces within a close proximity. In most recent decades, since China’s change to being more of an industrial based economy, the country has experienced record high numbers of people migrating within its borders. In effect, the number of cities with over 500,000 people has more than doubled. These migrations are typically of people from rural areas of China moving to the new urban areas. Due to this large influx in the urban population, there are many possibilities for health challenges among these people. One very common and fairly obvious negative aspect of highly congested urban areas is air pollution. It could include particulate matter, most commonly attributed to industrial plants and refineries waste, or chemicals like CO2 or Methane. Due to a vast number of people in these urbanized cities, the air pollution is known to be very extreme. These conditions can lead to many different health problems such as: Asthma, cardiovascular problems or disease. When exposed to these conditions for a prolonged period of time, one can experience even more detrimental health effects like: the acceleration of aging, loss of lung capacity and health, being more susceptible to respiratory diseases, and a shortened life span. Another way that urbanization affects the populations’ health is people’s change in diet. For instance, urban cities tend to have lots of accessible, quick, and easy to get food. This food is also more than likely not as high quality as well as contains a large amount of sodium and sugar. Because this food is so accessible, people tend to eat it more. This increase in consumption of low-quality food can then lead to diabetes, hypertension, heart disease, obesity, or many other health conditions.
6. Why are urban populations easy to get diseases from food, according to the last paragraph?