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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. Though Edmund Halley was most famous because of his achievements as an astronomer, he was a scientist of diverse interests and great skill. In addition to studying the skies, Halley was also deeply interested exploring the unknown depths of the oceans. One of his lesser-known accomplishments that was quite remarkable was his design for a diving bell that facilitated exploration of the watery depths.The diving bell that Halley designed had a major advantage over the diving bells that were in use prior to his. Earlier diving bells could only make use of the air contained within the bell itself, so divers had to surface when the air inside the bell ran low. Halley's bell was an improvement in that its design allowed for an additional supply of fresh air that enabled a crew of divers to remain underwater for several hours.The diving contraption that Halley designed was in the shape of a bell that measured three feet across the top and five feet across the bottom and could hold several divers comfortably; it was open at the bottom so that divers could swim in and out at will. The bell was built of wood, which was first heavily tarred to make it water repellent and was then covered with a half-ton sheet of lead to make the bell heavy enough to sink in water. The bell shape held air inside for the divers to breathe as the bell sank to the bottom.The air inside the bell was not the only source of air for the divers to breathe, and it was this improvement that made Halley's bell superior to its predecessors. In addition to the air already in the bell, air was also supplied to the divers from a lead barrel that was lowered to the ocean floor close to the bell itself. Air flowed through a leather pipe from the lead barrel on the ocean floor to the bell. The diver could breath the air from a position inside the bell, or he could move around outside the bell wearing a diving suit that consisted of a lead bell-shaped helmet with a glass viewing window and a leather body suit, with a leather pipe carrying fresh air from the diving bell to the helmetThe expression ran low in paragraph 2 is closest in meaning to
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 22 to 28.An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppmFor which of the following reasons can natural pollutants play an important role in controlling air pollution?
Read the following passage and mark the letter A, B, C, or D to indicate the correct word for each of the blanks from 26 to 35. COULD COMPUTER GAMES BE GOOD FOR YOU AFTER ALLIn Britain, the average young person now spends more money on games each year than on going to the cinema or renting videos. But is this……..26……a bad thing? For years, newspaper reports have been ………27…..that children who spend too much time playing computer games become unsociable, bad- tempered, even violent as a……..28…… But new research,………29……out in both Europe and the USA, suggests that the opposite may be true.Indeed, playing some of the more complicated games may help people of all ages to improve certain skills. Researchers claim that this is because the games………30……the brain work harder in certain ways, like……..31……sounds and movements quickly and identifying what they are. The fact that people play the games repeatedly……..32……..that they get a lot of practice in these skills which are therefore likely to become highly developed.Social skills may benefit, too. Researchers in Chicago think that fans of first- person shooter games……33…… “Counterstrike” are better than non-players when it comes to building trust and co-operation, and that this……..34……them to make good friendships and become strong members of their communities. So rather than……..35…….up computer games, perhaps young people need to spend more time on them?Question 32
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 Royal ResidencesBuckingham Palace, Windsor Castle and the Palace of Holyroodhouse are the official (35)_______ of the Sovereign and, as such, serve as both home and office for The Queen, whose personal standard flies (36)________ Her Majesty is in residence.These buildings are used extensively for State ceremonies and Official entertaining and are opened to the (37)________ as much as these commitments allow.All are furnished with fine pictures and (38)________of art from the Royal Collection, which has been assembled over four centuries by successive sovereigns. Many of the State Apartments and rooms at the official residences have been in continuous use since their conception and many of the works of art are (39)________ in the rooms for which they were originally (40)________.The official residences are in (41)________ use and the style and manner in which they are (42)_______ to visitors reflects their working status. Rooms are kept as close to their normal (43)________ as possible. Inevitably, opening times are subject to change at short notice depending on circumstances.The Royal Collection, which is owned by The Queen as Sovereign in trust for her successors and the Nation, is administered by the Royal Collection Trust to which a proportion of admission and other income from visitors is directed.The remainder of this income funds the majority of the cost of restoring Windsor Castle which was badly (44)________ by fire in November 1992.Question 35
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42. Life in the Universe Exobiology is the study of life that originates from outside of Earth. As yet, of course, no such a life forms have been found. Exobiologists, however, have done important work in the theoretical study of where life is most likely to evolve, and what those extraterrestrial life forms might be like.What sorts of planets are most likely to develop life? Most scientists likely to agree that a habitable planet must be terrestrial, or rock-based, with liquid surface water and biogeochemical cycles that somewhat resemble the continuous movement ands transformation of materials in the environment. These cycles include the circulation of elements and nutrients upon which life and the Earth’climate depend. Since (as far as we know) all life is carbon-based, a stable carbon cycle is especially important.The habitable zone is the region around a star in which planets can develop life. Assuming the need for liquid surface water, it follows that most stars around the size of our sun will be able to sustain habitable zones for billions of years. Stars that are larger than the sun are much hotter and burn out more quickly; life there may not have enough time to evolve. Stars that are smaller than the sun have different problems. First of all, planets is their habitable zones will be so close to the stars that they will be “tidally blocked”- that is one side of the planet will always face the star in perpetual daylight with the other side in perpetual night. Another possible obstacle to life on smaller stars is that they tend to vary in their luminosity, or brightness, due to flares and “star spots”. The variation can be large enough to have harmful effects on the ecosystem. Of course, not all stars of the right size will give rise to life; they also must have terrestrial planets with the right kind of orbits. Most solar systems have more than one planet, which influence each other’s orbits with their own gravity. Therefore, in order to have a stable system with no planets flying out into space, the width of a star’s habitable zone. This means that for life to evolve, the largest possible number of life-supporting planets in any star’s habitable zone is two. Finally, not all planets meeting the above conditions will necessarily develop life. One major threat is large, frequent asteroid and comet impacts, which will wipe out life each time it tries to evolve. The case of Earth teaches that having large gas gains, such as Saturn and Jupiter, in the outer part of the solar system can help keep a planet safe for life. Due to their strong gravitation, they tend to catch or deflect large objects before they can reach EarthThe word “which” in paragraph 3 refers to ______.
Read the following passage on commuting, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 51 to 60.Many folk cures which have been around for centuries may be more therapeutic than previously suspected. A case in point is that of penicillin Alexander Fleming did not just randomly choose cheese molds to study when he discovered this very important bacteria-killing substance. Moldy cheese was frequently given to patients as a remedy for illness at one time Fleming just isolated what it was about the cheese which cured the patients.In parts of South America, a powder obtained from grinding sugar cane is used for healing infections in wounds and ulcers. This usage may date back to pre-Colombian times. Experiments carried out on several hundred patients indicate that ordinary sugar in high concentrations is lethal to bacteria. Its suction effect eliminates dead cells and it generates a glasslike layer which protects the wound and ensures healing.Another example of folk medicine which scientists are investigating is that of Arab fishermen who rub their wounds with a venomous catfish to quicken healing. This catfish excretes a gellike slime which scientist found to contain antibiotics coagulant that helps close injured blood vessels, anti-inflammatory agents, and a chemical that directs production of a glue-like material that aids healing.It is hoped that by documenting these folk remedies and experimenting to see if results are indeed beneficial, an analysis of the substance be made, and synthetic substances be developed for human consumption.To the passage,_________
VI/ Read the following passage on native Americans, and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase for each of the blanks from 41 to 50. WORKING MOTHERSCarefully conducted (41)_________that have followed the children of working mothers have not been able to shown any long-term problems, compared with children of working mothers stayed at home. My personal (42)_________is that mothers should be allowed to work if they wish. Whether we like it or not, there a number of mothers who just have to work. There are those who have invested such a big part of their lives in establishing a career that they cannot afford to see it lost. Then there are many who must work out of pure economic (43)_________. Many mothers are not (44)_________out to be full-time parents. After a few months at home with a much_________loved infant, they feel trapped and isolated.There are a number of options when it (45)_________to choosing childcare. These range from child minders and nannies through to Granny of the kind lady (46)_________the street. (47)_________, however, many parents don’t have any choice; they have to accept anything they can get. Be prepared! No matter how good the childcare may be, some children are going to protest wildly if they are left. This is a (48)_________normal stage of child development. Babies separate well in the first six months, but soon after that they start to get a crush on Mum and close family members. Make sure that in first week you allow plenty of time to help your child settle in.All children are different. Some are independent, while others are more attached to their mothers. Remember that if you want to (49)_________the best for your children, it’s not the quantity of time you spend with them, it’s the (50)_________that matters.điền vào vị trí : 50
Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that hest fits each of the numbered blanks.(25) _______ in the past scientists have looked at things such as diet and lifestyle foran explanation of long life, these days they are investigating genetics. One such researcher is Eric Topol, who says, “There must be genes that explain why these individuals are protected from the aging (26) _______.” The new research into long life looks at groups of people who have a genetic connection. For example, one group of interest lives in Ecuador. In one area of the country there are a number of people with the same (27) _______ condition. it's called Laron syndrome. The condition mea ns that they don't grow to more than about one metre, but it also seems to give them protection (28) _______ cancer and diabetes. As a result, they live longer than other people in their families. Meanwhile, on the Hawaiian island of Oahu, there’s another group of long-lived men, japanese-Americans. They have a similar gene to the Laron syndrome group.Back in Calabria, scientists are trying to work out exactly how much of the longevity is due to genetics and how much to environment. By checking public records going back to the 19th century, researchers have reconstructed the family trees of 202 nonagenarians and centenarians. They (29) _______ that there were genetic factors involved.(Source: http://www.rwilfe.com/long-ruld-healthy-life-0)Điền vào số 29
Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question.Since the early eighties, we have been only too aware of the devastating effects of large-scale environmental pollution. Such pollution is generally the result of poor government planning in many developing nations or the shortsighted, selfish policies of the already industrialized countries, which encourage a minority of the world’s population to squander the majority of its natural resources.While events such as the deforestation of the Amazon jungle or the nuclear disaster in Chernobyl continue to receive high media exposure, as do acts of environmental sabotage, it must be remembered that not all pollution is on this grand scale. A large proportion of the world's pollution has its source much closer to home. The recent spillage of crude oil from an oil tanker accidentally discharging its cargo straight into Sydney not only caused serious damage to the harbor foreshores but also created severely toxic fumes which hung over the suburbs for days and left the angry residents wondering how such adisaster could have been allowed to happen.Avoiding pollution can be a fulltime job. Try not to inhale traffic fumes; keep away from Chemical plants and building-sites; wear a mask when cycling. It is enough to make you want to stay at home. But that, according to a growing body of scientific evidence, would also be a bad idea. Research shows that levels of pollutants such as hazardous gases, particulate matter and other chemical 'nasties’ are usually higher indoors than out, even in the most polluted cities. Since the average American spends 18 hours indoors for every hour outside, it looks as though many environmentalists may be attacking the wrong target.In the 3rd paragraph, the writer suggests that _____.
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 SCIENCEIt seems entirely natural to us that there are teams of scientists in universities and (46) _______ institutions around the world, attempting to discover the way the world works. (47) _______, it hasn’t always been that way. Although the scientific method is now four or five hundred years old, the ancient Greeks, for example, believed that they could (48) _________ the cause of natural events just by the power of thought. During the 17th century, more and more people began to realize that they could test their scientific ideas by designing a relevant experiment and seeing what happened. A lot of (49) _________ was made in this way by individual scientists. These men and women often worked alone, carrying out research into many different areas of science, and they often received very little (50) _________ for their hard work. At the start of the 20th century, though, it became clear that science was becoming more complicated and more expensive. The individual scientists disappeared, to be replaced by highly qualified teams of experts. Modern science was born.Điền vào ô 48
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.PERCEPTIONS OF ANIMALS ACROSS CULTURESWhen living and working in another country, there are numerous things to consider apart from the more obvious ones of climate, language, religion, currency, etc. Some important considerations are less obvious. For example, do you have a pet or do you enjoy a hobby such as horse riding? Your animal or hobby may be perceived in a completely different light in another culture so it’s important to consider the significance given to specific animals in different parts of the world and general perceptions towards them.One example which is often mentioned in popular press is the case of dogs. In some cultures, like the US or UK, dogs are loved and considered a great pet to have at home and with the family. In other cultures, such as those where Islam is the majority religion, dogs may be perceived as dirty or dangerous. Muslims treatment of dogs is still a matter of debate amongst Islamic scholars. While these animals are widely considered by many Western cultures to be „man’s best friend’, the Koran describes them as “unhygienic”. Muslims will therefore avoid touching a dog unless he can wash his hands immediately afterwards, and they will almost never keep a dog in their home.In Iran, for instance, a cleric once denounced „the moral depravity’ of dog owners and even demanded their arrest. If you are an international assignee living and working in Saudi Arabia or another Arabic country, you should remember this when inviting Arab counterparts to your house in case you have a dog as a pet. This is just one example of how Islam and other cultural beliefs can impact on aspects of everyday life that someone else may not even question. A Middle Eastern man might be very surprised when going to Japan, for instance, and seeing dogs being dressed and pampered like humans and carried around in baby prams!Dogs are not the only animals which are perceived quite differently from one culture to another. In India, for example, cows are sacred and are treated with the utmost respect. Conversely in Argentina, beef is a symbol of national pride because of its tradition and the high quality of its cuts. An Indian working in Argentina who has not done his research or participated in a cross cultural training programme such as Doing Business in Argentina may be surprised at his first welcome dinner with his Argentinean counterparts where a main dish of beef would be served.It is therefore crucial to be aware of the specific values assigned to objects or animals in different cultures to avoid faux–pas or cultural misunderstandings, particularly when living and working in another culture. Learning how people value animals and other symbols around the world is one of the numerous cultural examples discussed in Communicaid’s intercultural training courses. Understanding how your international colleagues may perceive certain animals can help you ensure you aren’t insensitive and it may even provide you with a good topic for conversation.The word “pampered” in the third paragraph could be best replaced by _______.
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 37 to 43. A team of Russian scientists has challenged the theory that the woolly mammoths became extinct 10,000 years ago at the end of the Ice Age. The scientists have reported that the beasts may have survived until 2000 B.C. on an island off the coast of Siberia, where researchers uncovered 29 fossilized woolly mammoth teeth ranging in age from 4,000 to 7,000 years. The question to be asked now is, how did these prehistoric pachyderms survive in their island environment? One possibility is that they adapted to their confined surroundings by decreasing their bulk. This theory is based on their smaller tooth size, which has led scientists to believe that they were only 6 feet tall at the shoulder compared with 10 feet of their full-sized counterpart. But would this be enough to enable them to survive thousands of years beyond that of other mammoths? Researchers are still working to uncover the reasons for this isolated group's belated disappearance.According to the passage, some researchers suggest that mammoths became extinct
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.Rachel Carson was born in 1907 in Springsdale, Pennsylvania. She studied biology at college and zoology at Johns Hopkins University, where she received her master’s degree in 1933. In 1936, she was hired by the U.S. Fish and Wildlife Service, where she worked most of her life.Carson’s first book, Under the Sea Wind, was published in 1941. It received excellent reviews, but sales were poor until it was reissued in 1952. In that year she published The Sea Around Us, which provided a fascinating look beneath the ocean’s surface, emphasizing human history as well as geology and marine biology. Her imagery and language had a poetic quality. Carson consulted no less than 1,000 printed sources. She had voluminous correspondence and frequent discussions with experts in the field. However, she always realized the limitations of her nontechnical readers.In 1962, Carson published Silent Spring, a book that sparked considerable controversy. It proved how much harm was done by the uncontrolled, reckless use of insecticides. She detailed how they poison the food supply of animals, kill birds and fish, and contaminate human food. At the time, spokesmen for the chemical industry mounted personal attacks against Carson and issued propaganda to indicate that her findings were flawed. However, her work was proved by a 1963 report of the President’s Science Advisory Committee.(Source: TOEFL Reading) Which of the following words or phrases is LEAST accurate in describing The Sea Around Us?
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.
Choosing a career may not be one of the hardest jobs you ever have, and it must be done with care. View career as an opportunity to do something you love, not simply as a way to earn a living. Investing the time and effort to thoroughly explore your options can mean the difference between finding a stimulating and rewarding career and move from job to unsatisfying job in an attempt to find the right one. Work influences virtually every aspect of your life, from your choice of friends to where you live. Here are just a few of the factors to consider.
Deciding what matters most to you is essential to making the right decision. You may want to begin by assessing your likes, dislikes, strengths, and weaknesses. Think about the classes, hobbies, and surroundings that you find most appealing. Ask yourself questions, such as “Would you like to travel? Do you want to work with children? Are you more suited to solitary or cooperative work?” There are no right or wrong answers; only you know what is important to you. Determine which job features you require, which ones you would prefer, and which ones you cannot accept. Then rank them in order of importance to you.
The setting of the job is one factor to take into account. You may not want to sit at a desk all day. If not, there are diversity occupation – building inspector, supervisor, real estate agent – that involve a great deal of time away from the office. Geographical location may be a concern, and employment in some fields is concentrated in certain regions. For example aerospace job in the U.S are most plentiful in California, Texas, and Washington. Advertising jobs can generally be found only in large cities. On the other hand, many industries such as hospitality, law, education, and retail sales are found in all regions of the country.
Consider your financial goals. If a high salary is important to you, do not judge a career by its starting. Many jobs, such as insurance sales, offers relatively low starting salaries; however, pay substantially increases along with your experience, additional training, promotions and commission.
Don’t rule out any occupation without learning more about it. Some industries evoke positive or negative associations: The traveling life of a flight attendant appears glamorous, while that of a plumber does not. Remember that many jobs are not what they appear to be at first, and may have merits or demerits that are less obvious. Flight attendants must work long, grueling hours without sleeps, whereas plumbers can be as highly paid as some doctors. Another point to consider is that as you get mature, you will likely to develop new interests and skills that may point the way to new opportunities. The choice you make today need not be your final one.
The word “them” in paragraph 2 refers to _________.
Read the following passage and circle the most suitable answer (A, B, C or D) to fill in each gap. Most Americans eat three meals (40) ______ the day: breakfast, lunch, and dinner. Breakfast begins between 7:00 and 8:00am, lunch between 11:00 am and noon, and dinner between 6:00 and 8:00 pm. On Sundays "brunch" is a (41) ______ of breakfast and lunch, typically beginning at 11:00 am. Students often enjoy a "study break" or evening snack around 10:00 or 11:00 pm. Breakfast and lunch tend to be light meals, with only one (42) ______. Dinner is the main meal. (43) ______ breakfast Americans will eat cereal with milk which are often mixed (44) ______ in a bowl, a glass of orange juice, and toasted bread or muffin with jam, butter, or margarine. Another common breakfast meal is scrambled eggs or (45) ______ omelet with potatoes and breakfast meat (bacon or sausage). People who are on (46) ______ eat just a cup of yogurt. Lunch and dinner are more (47) ______. When eating at a formal dinner, you may be overwhelmed by the number of utensils. How do you (48) ______ the difference between a salad fork, a butter fork, and a dessert fork? Most Americans do not know the answer (49) ______ But knowing which fork or spoon to use first is simple: use the outermost utensils first and the utensils closest to the plate last.Question 40
Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks. Higher education also provides a competitive edge in the career market. We all know that in the economic times we are living in today, finding jobs is not guaranteed. The number of people unemployed is still relatively high, and the number of new career (1) ______ isn’t nearly enough to put people in jobs they are seeking. As a job seeker, you’re competing with a high number of experienced workers (2) _______ have been out of the workforce for a while and are also seeking work. (3) _______, when you have a higher education, it generally equips you for better job security. Generally speaking, employers tend to value those who have completed college than those who have only completed high school and are more likely to replace that person who hasn’t (4) ______ a higher education. Furthermore, some companies even go so far as to pay your tuition because they consider an educated (5) ______ to be valuable to their organization. A college education is an investment that doesn’t just provide you with substantial rewards. It benefits the hiring company as well.Điền ô số 1
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.
Very few people in the modern 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 modern 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.
According to the passage, which of the following is NOT mentioned?