Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks.
STREET PAPERS
The problem of homelessness is an international one. In the capital cities of the world, the sight of people begging on the streets is becoming increasingly rare. But all over the world, homeless people are taking the future into their own (1) _____________. By selling "street papers" they no longer need to beg for a (2) ____________.
The concept of street paper is simple. It is sold by homeless and ex-homeless people (3) ________ buy it at a fixed price of 30p and sell it to the public for 70p, keeping 40p for themselves. If they have no money, then they can get the first ten copies on (4) _____________ and pay for them later. Every paper seller receives training and is given a special identity badge.
The paper itself contains articles of general and social interest, film and book reviews, cartoons and the occasional celebrity interview. Advertising and sales provide most of the income, and all profits go (5) ______________ into helping homeless people.
(5)..................
Suy nghĩ và trả lời câu hỏi trước khi xem đáp án
Lời giải:
Báo saiKiến thức về cụm động từ
Theo quy tắc:
Go forward: tiến triển, tiến lên
Go out: đi ra ngoài
Go through: trải qua (một vấn đề khó khăn)
Go back: quay trở lại, quay ngược lại
=> All profits go back into helping homeless people: tất cả lợi nhuận quay trở lại giúp những người vô gia cư
Tạm dịch: “Advertising and sales provide most of the income, and all profits go (5)___________ into helping homeless people.” (Việc quảng cáo và bán hàng cung cấp hầu hết thu nhập, và tất cả lợi nhuận quay trở lại giúp những người vô gia cư.)
=> Đáp án là D
Câu hỏi liên quan
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Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks.
STREET PAPERS
The problem of homelessness is an international one. In the capital cities of the world, the sight of people begging on the streets is becoming increasingly rare. But all over the world, homeless people are taking the future into their own (1) _____________. By selling "street papers" they no longer need to beg for a (2) ____________.
The concept of street paper is simple. It is sold by homeless and ex-homeless people (3) ________ buy it at a fixed price of 30p and sell it to the public for 70p, keeping 40p for themselves. If they have no money, then they can get the first ten copies on (4) _____________ and pay for them later. Every paper seller receives training and is given a special identity badge.
The paper itself contains articles of general and social interest, film and book reviews, cartoons and the occasional celebrity interview. Advertising and sales provide most of the income, and all profits go (5) ______________ into helping homeless people.(3)...................
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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.
Modern technologies have changed the way that people communicate with one another. These technologies provide new and innovative ways for people to communicate -- text messaging, email, chat and social networks. They allow faster and more efficient communication and can help build relationships. However, modern technologies can also have negative effects such as limiting personal contact and straining relationships. The nature of the effect depends in large part on the type of relationship.
Modern technologies limit the amount of separation between work and home. With the advent of computers, the Internet and cell phones people can -- and are often expected to -- address work issues from home. This can limit family interactions and cause conflict between family members. The use of Internet and television by children and teenagers also limits the amount time spent with family and can increase conflict between children and their parents.
Young people use modern technologies in increasing numbers to communicate with their friends. Text messaging and online chats have become the preferred method of youth communication. A California State University and UCLA study indicates that for young people face-to-face interactions are less desirable than modern modes of communication. This preference could cause an inability to form lasting friendships or difficulty understanding social cues. Others believe that modern technologies increase communication and therefore strengthen friendships.
Starting new relationships -- romantic and otherwise -- can be difficult. Modern technologies allow people to make new connections without the fears characteristic of face-to-face contact. The anonymity and low risk is what makes Internet dating and social networks popular ways of meeting people. However, this anonymity can also be dangerous. In April 2011, a woman sued an online dating site after allegedly being raped by a man she met online.
Modern technologies allow couples to be in contact with each other more than ever before. This can lead to increased expectations and conflict. With the increasing use of cell phones and email, people often expect an instant reply to communication. A delayed reply -- or none at all -- can lead to suspicion and anger. The use of social networks can also affect relationships. Information that was once private -- such as relationship conflicts -- is now part of the public sphere.According to paragraph 2, why do modern technologies cause conflict between family members?
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Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the blanks.
Nowadays people are more aware that wildlife all over the world is in danger. Many species of animals will become (1)... if we do not make an effort to protect them. There are many reasons for this. In some cases, animals are (2)...... for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are caught alive and sold as pets. For many animals and birds the problem is that their habitat - the place where they live - is (3)...... . More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them grow better crops, but these chemicals pollute the environment and (4)....... wildlife. The most successful animals on earth - human beings - will soon be the only ones (5)......... , unless we can solve this problem.
(1)..................... -
Early Teachers
All of you are enrolled in this introductory education course because you want to become teachers. I'd like to introduce this course with a little information about the life of a teacher a century ago. I hope you'll understand this information about early teachers, and I think you'll appreciate how much the life of a teacher has changed over the past century.
Early in the twentieth century, the life of a teacher was quite different from what it is now. There were very strict rules that governed every aspect of the teacher's life. The rules weren't just about how a teacher could conduct herself in the classroom and on the school grounds. There were also numerous rules that governed just about everything a teacher did.
Here are some of the rules. Teachers had to follow strict rules about their appearance; they were sometimes told not to wear colourful clothing, not to dye their hair or wear it loose, and not to wear their skirts above the ankle. Teachers' whereabouts during after-school hours were also strictly regulated; there were rules forbidding teachers to go to bars and to ice-cream parlors; there were rules requiring teachers to be home after 7:00 in the evening, and there were some rules forbidding them to leave town without permission. Just about any action a teacher wanted to take could be regulated. Teachers could be forbidden to smoke or to drink; they were also sometimes forbidden to spend time with men or to marry if they wanted to remain teachers.What rules about clothing are discussed in the lecture?
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The ability of falling cats to right themselves in midair and land on their feet has been a source of wonder for ages. Biologists long regarded it as an example of adaptation by natural selection, but for physicists it bordered on the miraculous.
Newton's laws of motion assume that the total amount of spin of a body cannot change unless an external torque speeds it up or slows it down. If a cat has no spin when it isreleased and experiences no external torque, it ought not to be able to twist around as it falls.
In the speed of its execution, the righting of a tumbling cat resembles a magician's trick. The gyrations of the cat in midair are too fast for the human eye to follow, so the process is obscured. Either the eye must be speeded up, or the cat's fall slowed down for the phenomenon to be observed. A century ago the former was accomplished by means of high-speed photography using equipment now available in any pharmacy. But in the nineteenth century the capture on film of a falling cat constituted a scientific experiment.
The experiment was described in a paper presented to the Paris Academy in 1894. Two sequences of twenty photographs each, one from the side and one from behind, show a white cat in the act of righting itself. Grainy and quaint though they are, the photos show that the cat was dropped upside down, with no initial spin, and still landed on its feet. Careful analysis of the photos reveals the secret; as the cat rotates the front of its body clockwise, the rear and tail twist counterclockwise, so that the total spin remains zero, in perfect accord with Newton's laws. Halfway down, the cat pulls in its legs before reversing its twist and then extends them again, with the desired end result. The explanation was that while nobody can acquire spin without torque, a flexible one can readily change its orientation, or phase. Cats know this instinctively, but scientists could not be sure how it happened until they increased the speed of their perceptions a thousandfold.Which of the following can be inferred about high-speed photography in the late 1800's?
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Read the following passage and mark the letter A, B, C or D to indicate the correct word or phrase that best fits each of the numbered blanks.
The latest addiction to trap thousands of people is Internet, which has been (1).... for broken relationships, job losses, financial ruin and even one suicide. Psychologists now recognize Internet Addiction Syndrome (IAS) as a new illness that could (2)..... serious problems and ruin many lives. Special help groups have been set up to offer sufferers help and support.
IAS is similar to (3)........ problems like gambling, smoking and drinking: addicts have dreams about Internet; they need to use it first thing in the morning; they lie to their partners about how much time they spend online; they wish they could cut down, but are unable to do so. A recent study found that many users spend up to 40 hours a week on the Internet; although they felt guilty, they became depressed if they were (4).... to stop using it.
Almost anyone can be at risk. Some of the addicts are teenagers who are already hooked on Computer games and who (5)......... it very difficult to resist the games on the Internet. Surprisingly, however, psychologists say that most victims are middle-aged housewives who have never used a computer before.
(1).........................
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The human criterion for perfect vision is 20/20 for reading the standard lines on a Snellen eye chart without a hitch. The score is determined by how well you read lines of letters of different sizes from 20 feet away. But being able to read the bottom line on the eye chart does not approximate perfection as far as other species are concerned. Most birds would consider us very visually handicapped. The hawk, for instance, has such sharp eyes that it can spot a dime on the sidewalk while perched on top of the Empire State Building.
It can make fine visual distinctions because it is blessed with one million cones per square millimeter in its retina. And in water, humans are farsighted, while the kingfisher, swooping down to spear fish, can see well in both the air and water because it is endowed with two foveae - areas of the eye, consisting mostly of cones, that provide visual distinctions. One fovea permits the bird, while in the air, to scan the water below with one eye at a time. This is called monocular vision. Once it hits the water, the other fovea joins in, allowing the kingfisher to focus both eyes, like binoculars, on its prey at the same time.
A frog’s vision is distinguished by its ability to perceive things as a constant motion picture. Known as “bug detectors”, a highly developed set of cells in a frog’s eyes responds mainly to moving objects. So, it is said that a frog sitting in a field of dead bugs wouldn’t see them as food and would starve. The bee has a “compound” eye, which is used for navigation. It has 15,000 facets that divide what it sees into a pattern of dots, or mosaic. With this kind of vision, the bee sees the sun only as a single dot, a constant point of reference. Thus, the eye is a superb navigational instrument that constantly measures the angle of its line of flight in relation to the sun. A bee’s eye also gauges flight speed. And if that is not enough to leave our 20/20 “perfect vision” paling into insignificance, the bee is capable of seeing something we can’t - ultraviolet light.
Thus, what humans consider to be “perfect vision” is in fact rather limited when we look at other species. However, there is still much to be said for the human eye. Of all the mammals, only humans and some primates can enjoy the pleasures of color vision.According to the passage, “bug detectors” are useful for .
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Martin Luther King, Jf, is well- known for his work in civil rights and for his many famous speeches, among which is his moving “I have a dream” speech. But fewer people know much about King’s childhooD. M.L., as he was called, was bom in 1929 in Atlanta, Georgia, at the home of his maternal grandfather. M.L.’s grandfather purchased their home on Auburn Avenue in 1909, twenty years before M.L was bom. His grandfather allowed the house to be used as a meeting place for a number of organizations dedicated to the education and social advancement of blacks. M.L. grew up in the atmosphere, with his home being used as a community gathering place, and was no doubt influenced by it.
M.L.’s childhood was not especially eventfully. His father was a minister and his mother was a musician. He was the second of three children, and he attended all black schools in a black neighborhood. The neighborhood was not poor, however. Auburn Avenue was an area of banks, insurance companies, builders, jewelers, tailors, doctors, lawyers, and other businesses and services. Even in the face of Atlanta’s segregation, the district thrived. Dr. King never forgot the community spirit he had known as a child, nor did he forget the racial prejudice that was a huge barrier keeping black Atlantans from mingling with whites.What is Martin Luthur King well- known for?
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Film is an illusion because the moving pictures seen on the screen are not moving at all. A film is actually a series of tiny still pictures, or flames. They appear to be moving because the retina of the human eye retains the impression of an object for a split second after that object has actually disappeared. This principle is known as the persistence of vision. When we look at a single frame of film, the image persists in the brain's visual center for a fraction of a second. Then, the next frame comes along and the brain has to catch up with the new image. Thus, our eyes and brain trick US into thinking that we see a smoothly moving image rather than a series of still ones.
Another illusion of film is known collectively as special effects, the tricks and techniques that filmmakers use when makeup, costume, and stunts are still not enough to make a scene convincing. Special effects artists apply science to filmmaking, showing US things that no plain camera could ever photograph. Even since the introduction of computer graphics in recent decades, the films of today still rely on some special effects that have existed since the early years of cinema.
One category of special effects is called optical or visual effects, tricks made with the camera. One of the pioneers of optical effects was the French filmmaker Georges Méliès, who invented a technique called stop-motion photography. With this technique, a scene is filmed, the camera is stopped, the scene is changed in some way, and then the camera rolls again. Stop motion photography can create the illusion of an actor disappearing on screen. In one short film, an actor's clothes keep returning to his body as he tries to get undressed. Méfiés also invented a technique known as split screen. By putting a card over the camera lens, he prevented half of the frame of film from being exposed. He filmed a scene on the uncovered half of the frame and then backed up the same strip of film in his camera. For the second shot, he covered the exposed half and took another series of pictures on the half that had been covered the first time. With the technique of split screen, it is possible to achieve illusions such as having the same actor play twins.
Mechanical effects are another category of special effects. Mechanical effects are objects or devices used during the filming to create an illusion, such as feathers or plastic chips to simulate snow, and wires to create the illusion that people are flying. Many sound effects are mechanical effects. Wood blocks create a horse's hoof beats, and a vibrating sheet of metal sounds like thunder. During the silent film era, the music machine called the Kinematophone was popular because it could produce the sounds of sirens, sleigh bells, gunfire, baby cries, and kisses-all at the press of a key.
Other mechanical effects are puppets, robots of all sizes, and tiny copies of buildings or cities. To reduce the cost of studio sets or location photography, special-effects technicians create painted or projected backgrounds, which replace the set or add to it. For example, in a long shot of a town, the set might be only a few feet high, and the remainder of the town is painted onto a sheet of glass positioned in front of the camera during filming. In a 1916 silent film called The Flying Torpedo, mechanical effects created the appearance of an enemy invasion of the California seacoast. Technicians threw small contact- rigged explosives into toy cities, scattering the tiny buildings into the air. An artist painted a row of battleships on a board that was only six feet long. Carpenters drilled small holes in the ships, which were filled with small charges of flash powder to simulate guns. An electrician wired the charges so they could be fired on cue from a small battery. For audiences of t -
The culture of Vietnam is one of the oldest in Southeast Asia, with the ancient Bronze age Đông Sơn culture being widely considered one of its most important progenitors. In spite of geographically Southeast Asian, Vietnamese culture was heavily influenced by Chinese culture in terms of politics, government, social and moral ethics, and art due to 1000 years of Chinese rule. Thus, Vietnam is considered to be part of the East Asian cultural sphere together with China, Japan, Korea and Taiwan.
Following independence from China in the 10th century, Vietnam began a southward expansion that saw the annexation of territories formerly belonging to the Champa Civilization (now Central Vietnam) and parts of the Khmer Empire (now Southern Vietnam). Gradually, there are minor regional variances in Vietnam's culture due to exposure to these different groups.
During the French colonial period, Vietnamese culture absorbed various influences from the Europeans, including the spread of Catholicism and the adoption of the Latin alphabet. Prior to this, Vietnamese had used both Chinese characters and a script called Chữ Nôm which was based on Chinese but included newly invented characters to represent native Vietnamese words.
In the socialist era, the cultural life of Vietnam has been deeply influenced by government-controlled media and the cultural influences of socialist programs. For many decades, foreign cultural influences from the Western World were shunned, and emphasis was placed on sharing the culture of communist nations such as those in the Soviet Union, Cuba, China, and others.
Some elements generally considered to be characteristic of Vietnamese culture include ancestor veneration, respect for community and family values, handicrafts and manual labour, and devotion to study. Important symbols present in Vietnamese culture include dragons, turtles, lotuses, and bamboo.
What is the synonym of “absord” in the paragraph 3?
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Transportation accounts for up to one–third of greenhouse gas emissions from the world’s biggest cities and traffic is the largest source of toxic air pollution. To create sustainable, healthy and liveable cities, we need to increase the number of cyclists on our streets, and that means getting more women on their bikes. In San Francisco, only 29% of cyclists are women; in Barcelona, there are three male cyclists for every female cyclist; in London, 37% of cyclists are female.
Surveys reveal that potential cyclists of all genders are deterred by similar concerns, including aggressive and speeding drivers, the threat posed by large vehicles such as lorries and buses, and bike theft. However, women disproportionately view protected cycle lanes as a more urgent priority.
According to research about women and cycling in San Francisco, cities should invest in protected cycle lanes with consistent and clear signage that function as a joined–up network to encourage female riders. Together with more secure cycle parking, these infrastructure investments would make cycling safer, supporting those who already cycle and encouraging those who do not yet ride.
People do what they perceive to be possible. Research in San Francisco found that women, especially women of colour, felt that “people like me” do not cycle. Similarly, 49% of people in London say they do not feel cycling is for “people like them”. More diverse and inclusive imagery of cyclists (in policy documents, in the media and on city streets) could help challenge these perceptions and make more people feel that cycling is for everyone. Social events that enable women to try cycling in a relaxed environment, perhaps as part of a buddy or mentor system that pairs experienced cyclists with those newer to cycling, can help make cycling more accessible and inclusive, along with approaches such as female–led maintenance classes. The different decisions men and women make about cycling are not only based on issues of convenience or comfort. People’s perceptions of safety influence how, when, where and why they travel. Women and girls learn early on to worry about their personal safety when out and about, and to change their behaviour, dress, speech and travel patterns to avoid sexual harassment or violence. Cities must take women’s and girls’ safety considerations seriously through initiatives such as safety audits.Which of the following can be inferred from the passage?
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Because geologists have long indicated that fossil fuels will not last indefinitely, the U.S government finally acknowledged that sooner or later other energy sources would be needed and, as a result, turned its attention to nuclear power. It was anticipated that nuclear power plants could supply electricity in such large amounts and so inexpensively that they would be integrated into an economy in which electricity would take over virtually all fuel-generating functions at nominal cost. Thus, the government subsidized the promotion of commercial nuclear power plants and authorized their construction by utility companies. In the 1960s and early 1970s, the public accepted the notion of electricity being generated by nuclear power plants in or near residential areas. By 1975, 54 plants were fully operational, supplying 11 percent of the nation’s electricity, and another 167 plants were at various stages of planning and construction. Officials estimated that by 1990 hundreds of plants would be on line, and by the turn of the century as many as 1000 plants would be in working order.
Since 1975, this outlook and this estimation have changed drastically, and many utilizes have cancelled existing orders. In some cases, construction was terminated even after billions of dollars had already been invested. After being completed and licensed at a cost of almost $6 billion, the Shoreham Power Plant on Long Island was turned over to the state of New York to be dismantled without ever having generated electric power. The reason was that residents and state authorities deemed that there was no possibility of evacuating residents from the area should an accident occur.Just 68 of those plants under way in 1975 have been completed, and another 3 are still under construction. Therefore, it appears that in the mid1990s 124 nuclear power plants in the nation will be in operation, generating about 18 percent of the nation’s electricity, a figure that will undoubtedly decline as relatively outdated plants are shut down.
In line 13, the phrase “this outlook” refers to
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A mansion is a very large home. McDonald's is the name of a fast food hamburger chain. What do you get when you put the two together? You get McMansion, the recently created name for a type of large suburban, two storied home that originated in the United States. Many people love McMansions for their low price, abundant space and impressive styling, but the news is not all good. In fact, McMansions may now be a threatened species.
McMansion became very popular in the United States during the 1990s, and this popularity continued for almost 20 years. During those years the economy was relatively strong, and banks were willing to lend large sums of money to people who wanted to buy a home. The result was an increase in the average home size. In 1988, the average new American home was 170 square meters, but by 2008 this had risen to 244 square meters, a 44% increase.
To offset the greater costs of these large homes, land developers built many homes that all used a similar basic design and identical construction methods. Framing and interior fittings were constructed in factories, instead of on site, and the materials used were often of a lower quality. Finally, the sections of land used for each house were much smaller than before.
The result was suburban developments full of huge homes, often over 280 square meters in floor area, that all looked similar to each other. Their standardization and lowest possible-cost construction reminded people of McDonald's hamburgers, hence the term McMansion. For many people a McMansion was their dream home, but that dream is now rapidly turning sour.
There are two main problems with McMansions. One problem is that their huge size means that they cost a lot to heat or cool. Energy is becoming more expensive, so owners are faced with huge bills if they try to heat or cool their home. The other problem is that McMansion owners are often in a lot of debt. They borrowed a lot of money to pay for their impressive home, but during the 2000s, with struggling economy and high unemployment, they couldn't afford to repay their loan.
McMansion are still popular in some area, but no one is sure how long it will last. Will energy become even more expensive and force owners to downsize? Will the economy grow and banks become more willing to end again? Will the drop-in house prices allow larger, less affluent families to afford a McMansion? These questions are weighing heavily on the future of one of the most popular housing styles of the late 20th century.Which of the following statements is true about McMansions according to the passage?
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According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he invented a device that he called a “looker”, a long thin tube where light passed in a straight line from the front lens to the viewing lens at the other end of the tube. In 1608 he tried to sell his invention unsuccessfully. In the same year, someone described the “looker” to the Italian scientists Galileo, who made his own version of the device. In 1610 Galileo used his version to make observations of the Moon, the planet Jupiter, and the Milky Way. In April of 1611, Galileo showed his device to guests at a banquet in his honor. One of guests suggested a name for the device: telescope
When Isaac Newton began using Galileo’s telescope more than a century later, he noticed a problem. The type of telescope that Galileo designed is called a refractor because the front lens bends, or refracts, the light. However, the curved front lens also caused the light to the separated into colors. This meant that when Newton looked through the refracting telescope, the images of bright objects appeared with a ring of colors around them. This sometimes interfered with viewing. He solved this problem by designing a new type of telescope that used a curved mirror. This mirror concentrated the light and reflected a beam of light to the eyepiece at the other end of the telescope. Because Newton used a mirror, his telescope was called a reflector
Very much larger optical telescopes can now be found in many parts of the world, built on hills and mountains far from city lights. The world’s largest refracting telescope is located at the Yerkes Observatory in Williams Bay, Wisconsin. Another telescope stands on Mount Palomar in California. This huge reflecting telescope was for many years the largest reflecting telescope in the world until an even larger reflecting telescope was built in the Caucasus Mountains. A fourth famous reflector telescope, the Keck Telescope situated on a mountain in Hawaii, does not use a single large mirror to collect the light. Instead, the Keck uses the combined light that falls on thirty- six mirrors
Radio telescopes, like optical telescopes allow astronomers to collect data from outer space, but they are different in important ways. First of all, they look very different because instead of light waves, they collect radio waves. Thus, in the place of lenses or mirror, radio telescopes employ bowl-shaped disks that resemble huge TV satellite dished. Also, apart from their distinctive appearance, radio telescope and optical telescopes use different methods to record the information they collect. Optical telescopes use cameras to take photographs of visible objects, while radio telescopes use radio receivers to record radio waves from distant object in space.When was Galileo’s invention called “telescope”?
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The Atmosphere of Venus
Venus, also called the Morning Star and Evening Star, is the second-closest planet to the sun and the brightest object in the night sky. The planet orbits the sun every two hundred and twenty four Earth-days and is sometimes referred to as Earth’s sister planet because the two share both a similar size and bulk. What is not similar, however, is Venus’s atmosphere in comparison to Earth’s atmosphere.
The atmosphere on Venus is much heavier and has a higher density than that of Earth. Venus’s atmosphere also expands significantly higher than Earth’s atmosphere although a thick cloud cover makes the surface of Venus nearly impossible to see unless observed through radar mapping.
While the pressure and temperature of Venus’s upper atmosphere are comparable to those of Earth, the heat and pressure of the lower atmosphere are not unlike a furnace. Venus’s atmosphere is very thick due to a composition consisting mainly of carbon dioxide, and a small amount of nitrogen. If man could survive the extreme heat of Venus’s surface (400 degrees Celsius), then he would have to contend with a surface pressure that is more than 90 times that of Earth. Venus’s extremely high temperature is thanks to the greenhouse effect caused by such a large amount of carbon dioxide. The greenhouse effect is a process by which the sun’s infrared radiation is more readily absorbed by the atmosphere. Just like in a real greenhouse used to grow plants years round, the proliferation of carbon dioxide traps radiation and warms Venus’s atmosphere. Due to this phenomenon, Venus boasts a higher atmospheric temperature than Mercury, even though Venus is twice the distance from the sun.
However, scientists postulate that Venus’s atmosphere was not always so hot. Studies show that large bodies of water were once on Venus’s surface but that eventually evaporation of all the water caused the runaway greenhouse effect which regulates the planet today.Thus Venus has become a critical study for today’s scientists, as human being are only beginning to struggle with the early stages of the greenhouse effect. Our problems do not stem from evaporated water supplies but from a propagation of carbon dioxide and other greenhouse gases due to industrial and automobile emissions.
Another interesting characteristic to note regarding Venus’s atmosphere is that its daytime temperatures and nighttime temperatures are not that far removed from each other. This is due to the thermal inertia, the ability of a substance to store heat despite changing temperatures and the transfer of heat by Venus’s strong winds. Although winds on the surface of Venus move slowly in comparison with Earth’s winds, Venus’s air is so dense that a slow-moving there can move large obstructions and even skip stones along the planet’s surface.
In 1966, humankind made its first attempt at sending a recording instrument into Venus’s atmosphere. The Venera 3 probe did collide with Venus surface; however, the abrupt impact caused its communication system to fail, and it was unable to send and feedback. In 1967, Venera 4 successfully enter Venus’s atmosphere and was able to take many readings, one of which recorded that Venus’s atmosphere was between ninety and ninety-five percent carbon dioxide. Subsequent Venera probes were sent into Venus’s atmosphere, but most of them succumbed to the crushing air pressure.The word propagation in paragraph 4 is closest in meaning to
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Very few people in the modem world obtain their food supply by hunting and gathering in the natural environment surrounding their homes. This method of harvesting from nature’s provision is the oldest known subsistence strategy and has been practised for at least the last two million years. It was, indeed, the only way to obtain food until rudimentary farming and the domestication of wild animals were introduced about 10,000 years ago.
Because hunter-gatherers have fared poorly in comparison with their agricultural cousins, their numbers have dwindled, and they have been forced to live in marginal environments, such as deserts and arctic wastelands. In higher latitudes, the shorter growing seasons have restricted the availability of plant life. Such conditions have caused a greater dependence on hunting, and on fishing along the coasts and waterways. The abundance of vegetation in the lower latitudes of the tropics, on the other hand, has provided a greater opportunity for gathering a variety of plants. In short, the environmental differences have restricted the diet and have limited possibilities for the development of subsistence societies.
Contemporary hunter-gatherers may help US understand our prehistoric ancestors. We know from the observation of modem hunter-gatherers in both Africa and Alaska that a society based on hunting and gathering must be very mobile. While the entire community camps in a central location, a smaller party harvests the food within a reasonable distance from the camp. When the food in the area has become exhausted, the community moves on to exploit another site. We also notice seasonal migration patterns evolving for most hunter-gatherers, along with a strict division of labor between the sexes. These patterns of behavior may be similar to those practised by mankind during the Paleolithic Period.A typical feature of both modem and prehistoric hunter-gatherers is that .
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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 81 to 92.
Setting up and running a car company was an expensive business and required a lot of workers. A company that makes its money out of a smart app requires less capital, doesn't have to pay (81) storage or transport in the way that car companies do and (82) virtually no extra costs as the number of users increases.
In the jargon of economics, the marginal costs per unit of output tend towards zero and the returns to scale are high. This explains why tech entrepreneurs can get very rich very young. Technological change has always been (83) There was a polarization of income and wealth in the first wave of industrialization at the beginning of the 19th century, and this gave rise to political and institutional change over the 100 years between 1850 and 1950: the spread of democracy; the emergence of trade unions; progressive taxation and the development of social safety nets. These helped create bigger markets for the consumer goods that were spawned by the second Industrial Revolution: TVs, radios, vacuum cleaners and the like. (84) over the past four decades a political model that both facilitated the spread of technology and provided some protection against its disruptive consequences has come under attack. Welfare states have become less generous, levels of long-term unemployment are much higher, taxation has become less progressive, and politics has increasingly been dominated by those with the deepest pockets (85) can lobby the loudest.(84)..............
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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 Americans with Disabilities Act (ADA) was signed into law in 1990. This law extends civil rights protection to persons with disabilities in private sector employment, all public services, and in public accommodations, transportation and telecommunications. A person with a disability is defined as someone with a mental or physical impairment that substantially limits him or her in a major life activity, such as walking, talking, working, or self-care. A person with a disability may also be someone with a past record of such impairment, for example, someone who no longer has heart disease but is discriminated against because of that history.
The ADA states that employers with fifteen or more employees may not refuse to hire or promote a person because of a disability if that person is qualified to perform the job. Also, the employer must make reasonable accommodations that will allow a person with a disability to perform essential functions of the job.
All new vehicles purchased by public transit authorities must be accessible to people with disabilities. All rail stations must be made accessible, and at least one car per train in existing rail systems must be made accessible.
It is illegal for public accommodations to exclude or refuse persons with disabilities. Public accommodations are businesses and services such as restaurants, hotels, grocery stores and parks. All new buildings must be made accessible, and existing facilities must remove barriers if the removal can be accomplished without much difficulty or expense.
The ADA also stipulates that companies offering telephone service to the general public must offer relay services to individuals who use telecommunications devices for the deaf, twenty-four hours a day, seven days a week.According to the passage, all of the following are affected by the Americans with Disabilities Act EXCEPT .
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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:
Garbage cans are not magical portals. Trash does not disappear when you toss it in a can. Yet, the average American throws away an estimated 1,600 pounds of waste each year. If there are no magic garbage fairies, where does all that trash go? There are four methods to managing waste:
Recycling, landfilling, composting, and incinerating. Each method has its strengths and weaknesses. Let’s take a quick look at each.
Recycling is the process of turning waste into new materials. For example, used paper can be turned into paperboard, which can be used to make book covers. Recycling can reduce pollution, save materials, and lower energy use. Yet, some argue that recycling wastes energy. They believe that collecting, processing, and converti g waste uses more energy than it saves. Still, most people agree that recycling is better for the planet
than landfilling.
Landfilling is the oldest method of managing waste. In its simplest form, landfilling is when people bury garbage in a hole. Over time the practice of landfilling has advanced. Garbage is compacted before it is thrown into the hole. In this way more garbage can fit in each landfill. Large liners are placed in the bottom of landfills so that toxic garbage juice doesn't get into the ground water. Sadly, these liners don't always work. Landfills may pollute the local water supply. Not to mention that all of that garbage stinks. Nobody wants to live next to a landfill. This makes it hard to find new locations for landfills.
Compositing is when people pile up organic matter, such as food waste, and allow it to decompose. The product of this decomposition is compost. Compost can be added to the soil to make the soil richer and better for growing crops. While composting is easy to do onsite somewhere, like home or school, it's hard to do after the garbage gets all mixed up. This is because plastic and other inorganic materials must be removed from the compost pile or they will pollute the soil. There's a lot of plastic in garbage, which makes it hard to compost on a large scale.
One thing that is easier to do is burning garbage. There are two main ways to incinerate waste. The first is to create or harvest a fuel from the waste, such as methane gas, and burn the fuel. The second is to burn the waste directly. The heat from the incineration process can boil water, which can power steam generators. Unfortunately, burning garbage pollutes the air. Also, some critics worry that incinerators destroy valuable resources that could be recycled.
Usually, the community in which you live manages waste. Once you put your garbage in that can, what happens to fit is beyond your control. But you can make choices while it is still in your possession. You can choose to recycle, you can choose to compost, or you can choose to let someone else deal with it. The choice is yours.What does the word "stinks" in paragraph 3 mean?
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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 green building movement, started in the 1970s as a way to reduce environmental destruction, is changing the way buildings are constructed. In the early years, green builders were a small minority, and their goals of reducing the environmental impact of buildings were considered unrealistic. Now, however, the movement is growing, as builders have been able to take advantage of new technology.
Green builders try to make use of recycled materials, which means less waste in dumps. Also, they reduce environmental impact by reducing the energy requirements of a building. One way is to provide an alternative, non-polluting source of energy. First, with solar panels, it is possible to produce electricity from the rays of the sun. Once installed, they provide energy at no cost and with no pollution.
Another solution is to reduce the amount of energy required in a building. It is possible to cut electricity use noticeably by improving natural lighting and installing low-energy light bulbs. To reduce the amount of fuel needed for heating or cooling, builders also add insulation to the walls so that the building stays warmer in winter and cooler in summer.
One example of this advanced design is the Genzyme Center of Cambridge, the most environmentally responsible office building in America. Every aspect of the design and building had to consider two things: the need for a safe and pleasant workplace for employees and the need to lessen the negative environmental impact. 75 percent of the building materials were recycled materials, and the energy use has been reduced by 43 percent and water use by 32 percent, compared with other buildings of the same size.
In other parts of the world, several large-scale projects have recently been developed according to green building principles. One of these is in Vauban, Germany, in an area that was once the site of army housing. The site has been completely rebuilt with houses requiring 30 percent less energy than conventional ones. These houses, heated by special non-polluting systems, are also equipped with solar panels.
A larger project is under way in China. The first phase of this project will include houses for 400 families built with solar power, non-polluting bricks, and recycled wall insulation. In a second phase, entire neighborhoods in six cities will be built. If all goes well, the Chinese government plans to copy these ideas in new neighborhoods across China.
Green building ideas, on a small or large scale, are spreading. Individuals, companies, and governments are beginning to see their benefits. Not only are they environmentally friendly, green buildings improve living and working conditions and also save money in the long run.The word “insulation” in paragraph 3 mostly means .