HOUSES

There are many houses all over the world. Some houses are large. Some are small. Some are made of wood. Some are made of rock. People usually build their houses with something that is easy to find. For example, there are many trees in forest. So people who live there might build a house made of logs. Some houses have one room. Some houses have many rooms. There is usually a bedroom for sleeping, a kitchen for cooking, a living room for sitting and talking. There is usually a bathroom. Some houses have attics. The attic is above the main part of the house. Most houses have a door so people can enter and exit the house. Most houses have windows so people can look outside. Houses look very different in different parts of the world. But, people who live in a house probably all agree that there is no place like home!

Why do houses have bedrooms?

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Geothermal energy offers enormous potential for direct, low-temperature applications. Unlike indirect applications, this new technology relies on the Earth's natural thermal energy to heat or cool a house or multifamily dwelling directly without the need to convert steam or other high-temperature fluids into electricity, using expensive equipment. A geothermal system consists of a heat pump and exchanger plus a series of pipes, called a loop, installed below the surface of the ground or submerged in a pond or lake. Fluid circulating in the loop is warmed and carries heat to the home. The heat pump and exchanger use an electrically powered vapor-compression cycle - the same principle employed in a refrigerator - to concentrate the energy and to transfer it. The concentrated geothermal energy is released inside the home at a higher temperature, and fans then distribute the heat to various rooms through a system of air ducts. In summer, the process is reversed: excess heat is drawn from the home, expelled to the loop, and absorbed by the Earth. Geothermal systems are more effective than conventional heat pumps that use the outdoor air as their heat source (on cold days) or heat sink (on warm days) because geothermal systems draw heat from a source whose temperature is more constant than that of air. The temperature of the ground or groundwater a few feet beneath the Earth's surface remains relatively stable – between 45°F and 70°F. In winter, it is much easier to capture heat from the soil at a moderate 50°F than from the atmosphere when the air temperature is below zero. Conversely. in summer, the relatively cool ground absorbs a home's waste heat more readily than the warm outdoor air. The use of geothermal energy through heat-pump technology has almost no adverse environmental consequences and offers several advantages over conventional energy sources. Direct geothermal applications are usually no more disruptive of the surrounding environment than a normal water well. Additionally, while such systems require electricity to concentrate and distribute the energy collected, they actually reduce total energy consumption by one-fourth to two-thirds, depending on the technology used. For each 1,000 hones with geothermal heat pumps, an electric utility can avoid the installation of 2 to 5 megawatts of generating capacity. Unfortunately, only a modest part of the potential of this use for geothermal energy has been developed because the service industry is small and the price of competing energy sources is low.
2. According to paragraph 1, which of the following is not a difference between indirect geothermal technology and direct applications?

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Learning to manage your time involves using a variety of life skills together. First of all, you need to know yourself. Only you know (1) ____ you are a morning or an evening person, for example. Understanding when you are (2) ____ your best can help you decide when to do certain things you have to do - like studying. Then, you need to prioritise and decide which things are the most (and least) important. After that, you need to get organised and start planning a schedule, (3) ____ could include when to study, as well as when to relax. It is important to be (4) ____ when you are trying to manage your time. You need to factor in time to sleep, (5) ____, and this should be based on your normal sleep patterns there is no (6) ____ in planning to study at six in the morning if you have never managed to get out of bed before eight. Many people forget to include socialising, but this is a mistake because it is unhealthy to avoid seeing people, just as it is a mistake to (7) ____ all your time socialising while your list of things to do grows longer and longer.  On the subject of lists, it is important to remember that these may have to change. You need to plan for the unexpected - a visit from a friend, for example - and this means that you may have to (8) ____ your to-do list, perhaps (9) ____ something that is less important. Flexibility is the key here, (10) ____ you risk becoming extremely disorganised. It is better to have to change a plan than to lose it completely.  Finally, remember the old saying - 'If you fail to plan, you plan to fail. In the end, managing your time better will help you avoid stress, and that can only be a good thing

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
When you are in Hong Kong, you can go about taxi, by tram, by bus or (1)______underground. I mysetf prefer the underground (2)___ it is fast easy and cheap. There are(3)_______ tram and bus in Hong Kong, and one cannot drive along the road (4)_________ and without many stops. The underground is therefore usually quicker (5)___ taxis or buses. If you do not know Hong Kong very well, it is very difficult (6)_____________the bus you want. You can take a taxi, but it is (7)_______expensive than the underground or a bus. On the underground you find good maps that tell you the names of the stations and show you (8)____________to get to them, so that it is easy to find your way

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Dogs originally came from wolves. Wolves look a lot like dogs, but they are bigger. They are also quite fierce. At some point, some wolves changed through evolution. Some of them were smaller and gentler. These nicer wolves were the first dogs. No one knows for sure when this happened or why. Some people say it happened naturally over 50,000 years ago. Others say people made it happen between 15 000 and 50 000 years ago. However they came to be, people quickly saw that dogs were useful. Scientists who study humans say the first tame dogs appeared with humans about 13,000 years ago in the Middle East. Not long after there were dogs in Asia, Africa, Europe and eventually, North America. These dogs were probably used mostly for hunting and traveling. They were also good companions. Dogs were an important part of life in ancient Egypt. Egyptian dogs were used not only for hunting but as guards and warriors as well. They believed the god that guarded hell was a dog. Ancient Egyptians also named their pet dogs. Some popular names meant Brave One, Reliable, North-wind, Blacky, and Useless. Dogs were also good ancient Roman warriors. The Roman army used dogs all over Europe. Sometimes the dogs were attack dogs, but other times the dogs were messengers There are many different kinds of dogs today. How could they all come from wolves? There are many different explanations. Some scientists believe that dogs mixed with other animals from the Canidae family. This includes coyotes, foxes and jackals. Most scientists also believe that evolution and breeding influenced the variation. Later, people found breeds of dogs they liked and combined them to make all new breeds. In this way. people are still helping new breeds to appear today!
2. The word “they” in the first paragraph refers to _______

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The United Nations Children’s Fund (UNICEF), originally known (26)______the United Nations International Children’s Emergency Fund, was created by the United Nations General Assembly on December 11th , 1946 to provide emergency food and healthcare to children and mothers in countries that had been devastated by World War II. The Polish physician Ludwik Rajchman is widely regarded as the (27)______of UNICEF and served as its first chairman from 1946 to 1950, when he had to flee the United States in the wake of McCarthyism. Rajchman is to this day the only person that served as UNICEF’s Chairman for longer than 2 years. On Rajchman’s suggestion, the American Maurice Pate was appointed its first executive director, serving from 1947 until his death in 1965. In 1950, UNICEF’s mandate was extended to address the long-term needs of children and women in developing countries everywhere. In 1953, it (28)______a permanent part of the United Nations System, and the words "international" and "emergency" were dropped from the organization's name, though it retained the original acronym, "UNICEF". UNICEF (29)______ on contributions from governments and private donors. UNICEF’s total income for 2015 was more than five billion dollars. Governments contribute two-thirds of the organization’s resources. Private groups and individuals contribute the rest through national committees. It is estimated that 92 per cent of UNICEF revenue is distributed to program services. UNICEF’s programs emphasize developing community-level services to (30)______ the health and well-being of children. UNICEF was awarded the Nobel Peace Prize in 1965 and the Prince of Asturias Award of Concord in 2006

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You can't master a language in a month. It is impossible

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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

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:

Hoa is going on (1) ...................... this summer. First, she is going (2) ......................Ha Long Bay, Ho Chi Minh Mausoleum (3) ...................... Hoi An Ancient town (4) ...................... five days. She is going to stay (5) ...................... her uncle in Ha Noi. (6) ......................, she is going to stay in a hotel in Hue for two days. She is going to see the (7) ...................... and Thien Mu (8) ......................

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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.
4. The word ‘menace’ in paragraph 3 mostly means _______

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The World Wildlife Fund (WWF) has issued a stark warning about the future of the world's natural World Heritage sites. It says half of the sites are at (1) ____ from different industries. The WWF warned that harmful industrial (2) ____ such as mining, dredging or drilling for oil are endangering the future of 114 of 229 sites. (3) ____ factors adding to the risk include illegal logging and unsustainable water use. All of these are in addition to the damage being (4) ____ by climate change. The WWF says the sites affected include Australia's Great Barrier Reef, the Grand Canyon National Park in the USA, and China's Sichuan Giant Panda Sanctuaries, which are home (5) ____ more than 30 per cent of the world's endangered pandas.  The director of the UNESCO World Heritage Centre said it was (6) ____ everyone to protect these sites. She said: "World Heritage is humankind's (7) ____ heritage, and the responsibility for its conservation is shared by everyone." She welcomed government efforts at reducing what they take from the Earth, saying: "The WWF's report comes at a time (8) ____ governments and the private sector around the world are stepping up their action against harmful extractive uses." However, the WWF said that more than 11 million people worldwide (9) _____ on World Heritage sites for food, water, shelter, jobs and medicine, and that non-stop development could harm (10) ____ as well as the environment

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Most adults struggle to recall events from their first few years of life and now scientists have identified exactly when these childhood memories are lost forever. A new study into childhood amnesia has found that it tends to take (31) _____ around the age of seven. The rapid decline of memories persisting while children are five and six is owing to the change in the way memories are formed. Before the age of seven, children tend to have an (32) _____ form of recall with no sense of time and place in their memories. In older children, however, the early recollected events tend to be more adult like in their content and the way they are formed. Faster rate of forgetting in children and higher turnover of memories means early memories are less likely to survive. (33) _____, memories of younger children tend to lack autobiographical narrative leading to a process known as ‘retrieval induced forgetting’ (34) _____ the action of remembering causes other information to be forgotten. Consequently, if childhood memories can survive into the ninth or tenth year of life, they may stay a chance of (35) _____ it into adulthood

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Birds that feed in flocks commonly retire together into roosts. The reasons for roosting communally are not always obvious, but there are some likely benefits. In winter especially, it is important for birds to keep warm at night and conserve precious food reserves. One way to do this is to find a sheltered roost. Solitary roosters shelter in dense vegetation or enter a cavity – horned larks dig holes in the ground and ptarmigan burrow into snow banks - but the effect of sheltering is magnified by several birds huddling together in the roosts, as wrens, swifts, brown creepers, bluebirds, and anis do. Body contact reduces the surface area exposed to the cold air, so the birds keep each other warm. Two kinglets huddling together were found to reduce their heat losses by a quarter, and three together saved a third of their heat.
The second possible benefit of communal roosts is that they act as “information centers”. During the day, parties of birds will have spread out to forage over a very large area. When they return in the evening some will have fed well, but others may have found little to eat. Some investigators have observed that when the birds set out again next morning, those birds that did not feed well on the previous day appear to follow those that did. The behavior of common and lesser kestrels may illustrate different feeding behaviors of similar birds with different roosting habits. The common kestrel hunts vertebrate animals in a small, familiar hunting ground, whereas the very similar lesser kestrel feeds on insects over a large area. The common kestrel roosts and hunts alone, but the lesser kestrel roosts and hunts in flocks, possibly so one bird can learn from others where to find insect swarms. Finally, there is safety in numbers at communal roosts since there will always be a few birds awake at any given moment to give the alarm. But this increased protection is partially counteracted by the fact that mass roosts attract predators and are especially vulnerable if they are on the ground. Even those in trees can be attacked by birds of prey. The birds on the edge are at greatest risk since predators find it easier to catch small birds perching at the margins of the roost.
1. What does the passage mainly discuss?

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Recent studies have shown that more and more students are choosing unhealthy ways to boost energy. The two main ways (1) ____ are eating snacks high in sugar and drinking beverages high in caffeine. In fact, research shows these two choices may (2) ____ in the opposite effects as those desired.  Eating a sweet snack, (3) ____ a candy bar, does not provide the body more energy. (4) ____ candy bars have little (5) ____ value; however, their high sugar content can create a full feeling in the consumer. While the sugar may produce an initial boost in energy, the lack of nutritional value soon (6) ____ the body feeling fatigued. In effect, eating a sweet snack will have the opposite effect to what most people expect.  Likewise, many people will drink a caffeinated beverage like coffee or cola to give themselves more energy. To a certain (7) ____, drinking coffee or cola will give a person some energy. The caffeine can increase the heart rate and blood flow, (8) ____ producing a feeling of increased energy. (9) ____, caffeine products are often consumed in excessive quantities or at unwise times. This, (10) ____, can interfere with normal sleep patterns and also lead to fatigue. In the end, caffeine drinkers often lose valuable hours of sleep and become even more tired during the day

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A team of social psychologists from California has spent six years studying the reactions of people in cities around the world to different situations. The results show that cities where people have less money generally have friendlier populations. Rio de Janeiro in Brazil, which is often known for its crime, comes out top, and the capital of Malawi, Lilongwe, comes third. But what makes one city friendlier than another? The psychologists from California State University say it has got more to do with the environment than culture or nationality. They carried out a study into the way locals treated strangers in 23 cities around the world. The team conducted their research through a series of tests, where they dropped pens or pretended, they were blind and needed help crossing the street. The study concludes that people are more helpful in cities with a more relaxed way of life such as Rio. While they were there, researchers received help in 93 percent of cases, and the percentage in Lilongwe was only a little lower. However, richer cities such as Amsterdam and New York are considered the least friendly. Inhabitants of Amsterdam helped the researchers in 53 percent of cases and in New York just 44 percent. The psychologists found that, in these cities, people tend to be short of time, so they hurry and often ignore strangers.
5. Which of the following is true, according to the passage?

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Most adults struggle to recall events from their first few years of life and now scientists have identified exactly when these childhood memories are lost forever. A new study into childhood amnesia has found that it tends to take (31) _____ around the age of seven. The rapid decline of memories persisting while children are five and six is owing to the change in the way memories are formed. Before the age of seven, children tend to have an (32) _____ form of recall with no sense of time and place in their memories. In older children, however, the early recollected events tend to be more adult like in their content and the way they are formed. Faster rate of forgetting in children and higher turnover of memories means early memories are less likely to survive. (33) _____, memories of younger children tend to lack autobiographical narrative leading to a process known as ‘retrieval induced forgetting’ (34) _____ the action of remembering causes other information to be forgotten. Consequently, if childhood memories can survive into the ninth or tenth year of life, they may stay a chance of (35) _____ it into adulthood

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Some health experts deducted that the overuse of some vitamins could imperil humans’ lives

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Until fairly recently, explaining the presence of human beings in Australia was not such a problem. At the beginning of the twentieth century, it was thought that Aborigines had been on the continent for no more than 400 years. As recently as the 1960s, the time-frame was estimated to be perhaps 8,000 years. Then in 1969 a geologist from the Australian National University in Canberra was poking around on the shores of a long-dried lake bed called Mungo in a dry and lonely corner of New South Wales when something caught his eye. It was the skeleton of a woman sticking out slightly from a sandbank. The bones were collected and sent off for carbon dating. When the report came back, it showed that the woman had died 23,000 years ago. Since then, other finds have pushed the date back further. Today the evidence points to an arrival date of at least 45,000 years ago but probably more like 60,000. The first occupants of Australia could not have walked there because at no point in human times has Australia not been an island. They could not have arisen independently because Australia has no apelike creatures from which humans could have descended. The first arrivals could only have come by sea, presumably from Timor or the Indonesian archipelago, and here is where the problems arise. In order to put Homo sapiens in Australia you must accept that at a point in time so remote that it precedes the known rise of behaviourally modern humans, there lived in southern Asia a people so advanced that they were fishing inshore waters from boats of some sort. Never mind that they the archaeological record shows no one else on earth doing this for another 30,000 years. Next, we have to explain what led them to cross at least sixty miles of open sea to reach a land they could hardly have known was there. The scenario that is usually described is of a simple fishing craft probably little more than a floating platform - accidentally carried out to sea probably in one of the sudden storms that are characteristic of this area. This craft then drifted helplessly for some days before washing up on a beach in northern Australia. So far, so good. The question that naturally arises - but is seldom asked - is how you get a new population out of this. If it's a lone fisherman who is carried off to Australia, then clearly he must find his way back to his homeland to report his discovery and persuade enough people to come with him to start a colony. This suggests, of course, the possession of considerable sailing skills. By any measure this is a staggeringly momentous achievement. And how much notice is paid to it? Well, ask yourself the last time when you read anything about it. When was the last time in any context concerning human movements and the rise of civilisations that you saw even a passing mention of the role of aborigines? They are the planet's invisible people. A big part of the problem is that for most of us it is nearly impossible to grasp what an extraordinary span of time we are considering here. Assume for the sake of argument that the Aborigines arrived 60,000 years ago (that is the figure used by Roger Lewin of Havard in Principles of Evolution, a standard text). On that scale, the total period of European occupation of Australia represents about 0.3 percent of the total. In other words, for the first 99.7 per cent of its inhabited history, the Aborigines had Australia to themselves. They have been there an unimaginably long time.
1. What did the discovery of the skeleton show?

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Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (1)______ ecosystems. If there is too (2) ______ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that (3) ______ it may also die or move away. Some changes are good for ecosystems. Some pine forests need (4) ______ for the pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds (5)______. Polluting the air, soil, and water can harm ecosystems. Building (6) ______ on rivers for electric power and irrigation can harm ecosystems (7) ______ the rivers. Bulldozing wetlands and cutting down (8) ______ destroy ecosystems. Ecologists are working with companies and governments to find better ways of (9) ______ fish, cutting down trees, and building dams. They are looking for ways to get food, lumber, and other products for people (10)______ causing harm to ecosystems

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Australians place a high value on independence and personal choice. This means that a teacher or course tutor will not tell students what to do, but will give them a number of options and suggest they work out which one is the best in their circumstances. It also means that they are expected to take action if something goes wrong and seek out resources and support for themselves. Australians are also prepared to accept a range of opinions rather than believing there is one truth. This means that in an educational setting, students will be expected to form their own opinions and defend the reasons for that point of view and the evidence for it. Australians are uncomfortable with differences in status and hence idealise the idea of treating everyone equally. An illustration of this is that most adult Australians call each other by their first names. This concern with equality means that Australians are uncomfortable taking anything too seriously and are even ready to joke about themselves. Australians believe that life should have a balance between work and leisure time. As a consequence, some students may be critical of others who they perceive as doing nothing but study. Australian notions of privacy mean that areas such as financial matters, appearance and relationships are only discussed with close friends. While people may volunteer such information, they may resent someone actually asking them unless the friendship is firmly established. Even then, it is considered very impolite to ask someone what they earn. With older people, it is also rude to ask how old they are, why they are not married or why they do not have children. It is also impolite to ask people how much they have paid for something, unless there is a very good reason for asking.
7. Which of the following can be inferred from paragraph 5?

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Life span usually is measured in units of time. Although this may seem eminently logical, certain difficulties may arise. In cold blooded animals in general, the rate of metabolism that determines the various life processes varies with the temperatures to which they are exposed. If aging depends on the expenditure of a fixed amount of vital energy, an idea first proposed in 1908, life span will vary tremendously depending on temperature or other external variables that influence life span. There is considerable evidence attesting at least to the partial cogency of this argument. So long as a certain range is not exceeded, cold blooded invertebrates do live longer at low than at high temperalures. Rats in the laboratory live longest on a somewhat restricted diet that does not permit maximum metabolic rate. Of perhaps even greater significance is the fact that many animals undergo dormant periods. Many small mammals hibernate; a number of arthropods have life cycles that include periods during which development is arrested. Under both conditions the metabolic rate becomes very low. It is questionable whether such periods should be included in computing the life span of a particular organism. Comparisons between species, some of which have such inactive periods while others do not, are dangerous. It is possible that life span could be measured more adequately by total metabolism; however, the data that are necessary for this purpose are almost entirely lacking.  Length of life is controlled by a multitude of factors, which collectively may be termed environment, operating on a genetic system that determines how the individual will respond. It is impossible to list all the environmental factors that may lead to death. For analytical purposes it is, however, useful to make certain formal separations. Every animal is exposed to (1) a pattern of numerous events, each with a certain probability of killing the individual at any moment and, in the aggregate, causing a total probability of death or survival; (2) climatic and other changes in the habitat, modifying the frequency with which the various potentially fatal events occur; and (3) progressive systemic change, inasmuch as growth, reproduction, development, and senescence are characteristics intrinsic in the organism and capable of modifying the effects of various environmental factors. 
3. The word "expenditure" in the passage mostly means ____