Choose the best answer:
Kevin ____ his homework, but he ____ it yet.
Suy nghĩ và trả lời câu hỏi trước khi xem đáp án
Lời giải:
Báo saiGiải thích:
Thì HTHT
Dịch: Kevin đang làm bài tập về nhà, nhưng anh chưa hoàn thành nó.
Câu hỏi liên quan
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His bad mark in the exam was the consequence of his laziness. -
Each sentence has a mistake. Find it by chosing A B C or D
Over the past 60 years, starting right after World War II, American society became richer
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Read the following passage and choose the best answer (A, B, C, D):
My children can’t live without media. At age 14, 15 and 18, my daughters Sussy and Anni and my son Bill don’t use media. They inhabit media. And they do so exactly as fish inhabit a pond. Gracefully, and without consciousness and curiosity as to how they got there. They don’t remember a time before email or instant messaging or Google. When my children laugh, they don’t say “Ha, ha”. They say “LOL”. These are children who shrug indifferently when they lose their iPods, with all 5000 tunes plus video clips, feature films, and TV shows (like who watches TV on a television anymore?). “There is plenty more where that came from”, their attitude says. And they seem right. The digital content that powers their world can never truly be destroyed. As a social scientist, journalist, and mother, I’ve always been an enthusiastic user of information technology. But I’d noticed that the more we seemed to communicate as individuals, the less we seemed to function together as a family. And on a broader scale, that the more facts we have at our fingertips, the less we seem to know. That the “convenience” of messaging media (email, SMS, IM) consumes ever larger amounts of our time. That as a culture we are practically swimming in entertainment, yet remain more depressed than any people who have ever lived. Our family’s self-imposed exile from the information age changed our lives infinitely for the better. I watched as my children became more focused. I watched as their attention spans increased, allowing them to read for hours at a time; to hold longer and more complex conversations with adults and among themselves. They probably did no more homework during The Experiment than they had done before, but they all completed it far more efficiently and far more quickly The Experiment also forced us to notice food more. Before, eating had been a side dish. Now it was the main course, or at least one of them. Our approach to cooking changed, too, especially for the girls. They’d started out as reasonably competent cooks, but by the end of The Experiment they were capable of turning out entire meals with ease The Experiment also confirmed my strong suspicion that media has been robbing Sussy of sleep for years. Unplugged, the changes to her sleep patterns were dramatic. The evidence strongly suggests she is no isolated case. One study found that children who spend more time online also drink more caffeinated beverages, with a resulting effect on their prospects of sleeping well
3. What does the writer say about information technology in paragraph 3? -
Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
A recent study shows that an unequal share of household chores is still the norm in many households, despite the fact that many more women now have jobs. In a survey of 1,256 people ages between 18 and 65, men said they contributed an average of 37% of the total housework, while the women estimated their share to be nearly double that, at 70%. This ratio was not affected by whether the woman was working or not.
When they were asked what they thought was a fair division of labour, women with jobs felt that housework should be shared equally between male and female partners. Women who did not work outside the home were satisfied to perform 80% - the majority of the household work - if their husbands did remainder. Research has shown that, if levels increase beyond these percentages, women become unhappy and anxious, and feel they are unimportant.
After marriage, a woman is reported to increase her household workload by 14 hours per week, but for men the amount is just 90 minutes. So the division of labour becomes unbalanced, as a man's share increases much less than the woman's. It is the inequality and loss of respect, not the actual number of hours, which leads to anxiety and depression. The research describes housework as thankless and unfulfilling. Activities included in the study were cooking, cleaning, shopping, doing laundry, washing up and childcare. Women who have jobs report that they feel overworked by these chores in addition to their professional duties. In contrast, full-time homemakers frequently anticipate going back to work when the children grow up. Distress for this group is caused by losing the teamwork in the marriage.The word "remainder" in paragraph 2 is closest in meaning to
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Gender inequality remains an everyday reality for the world’s women and girls. It can begin right at the moment of birth and continue throughout the course of a woman’s life. Despite critical advances over the course of recent history, women in all countries and across all socioeconomic levels in society can face various forms of unfair treatment, including discrimination, harassment, domestic violence and sexual abuse. Other forms of abuse that are particularly prevalent in certain countries or cultural contexts include forced marriage, honor killings, deprivation of education, denial of land and property rights, and lack of access to work and to health care. Women may experience human rights abuses at different points in their working lives, including during recruitment, hiring, promotion and termination processes, as well as in daily interactions with colleagues and supervisors. Outside of the workplace, women are often particularly vulnerable to the social and environmental impacts of business activities. For example, in many developing countries, women and girls are primarily responsible for fetching and hauling water. When company operations contaminate local sources, it is they who carry the burden of walking, often for hours, to the nearest substitute, which can prevent them from working or going to school. According to the UN Entity for Gender Equality and the Empowerment of Women, gender “refers to the social attributes and opportunities associated with being male and female and the relationships between women and men and girls and boys, as well as the relations between women and those between men. These attributes, opportunities and relationships are socially constructed and are learned through socialization processes.” Furthermore, gender equality “refers to the equal rights, responsibilities and opportunities of women and men and girls and boys. Equality does not mean that women and men will become the same but that women’s and men’s rights, responsibilities and opportunities will not depend on whether they are born male or female.” Women and girls comprise half of the planet’s population; their empowerment is essential in expanding economic growth and promoting social development in a sustainable way. Evidence from around the world shows that gender equality advancements have a ripple effect on all areas of sustainable development, from reducing poverty, hunger and even carbon emissions to enhancing the health, well-being and education of entire families, communities and countries. In fact, “Equality between women and men is seen both as a human rights issue and as a precondition for, and indicator of, sustainable people-centered development.”
1. What does the passage mainly discuss? -
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This French expansion can be traced back to Isle of France, or Ile-de-France, the administrative region for Metropolitan Paris. It is often referred to as “the city of love” or “the city of lights”, now it can officially be called “Paris, the city of incredibly talented soccer players”. In order to preserve the integrity of the international competition, FIFA tightened the rules on nationality and representation in 2004. The decision arrived amid a growing trend of so called “lesser” footballing nations naturalising players from a greater talent pool, typically from Brazil, to play for their national team. For example, Qatar offered citizenship to three Brazilians within a week having never lived or played football in the country, while Togo managed to naturalise five Brazilians for their national team. To prevent this, FIFA declared that any player wishing to represent a “new” nation must have a “clear connection” to it. A “clear connection”, according to FIFA, means that a player must have at least one parent or grandparent who were born in their newly chosen country. The diversity of France, and Paris in particular, lends a hand to the range of national teams its citizens can represent. Along with many European migrants residing in Paris, France’s colonial history also means that a large proportion of African and Caribbean immigrants call Paris home. Famed French nationals Claude Makalele and Lilian Thuram both migrated with their families to Paris from Zaire and Guadeloupe respectively. By law, the French INSEE census does not collect data on religion or ethnicity so it is difficult to estimate the extent of diversity in the Ile-de-France region, but approximately 20% of its inhabitants were born abroad. One might conclude that an even larger percentage have at least one parent or grandparent who were part of the sizeable waves of immigrants arriving to Paris since WWI. These waves of migrations chiefly occurred in the late 19th century and up until WWI. It is unlikely that the current crop of footballers would have many feelings of nationalism toward the faraway countries of their grandparents. The advantage Paris has is that a vast majority of professional footballers may feel that their best opportunity to play for a national team would be with the country of their heritage.
5. The word “residing” in paragraph 3 refers to _____ -
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Without regular supplies of some hormones our capacity to behave would be seriously impaired; without others we would soon die. Tiny amounts of some hormones can modify our moods and our action, our inclination to eat or drink, our aggressiveness or submissiveness, and our reproductive and parental behavior. And hormones do more than influence adult behavior; early in life they help to determine the development of bodily form and may even determine an individual’s behavioral capacities. Later in life the changing outputs of some endocrine glands and the body’s changing sensitivity to some hormones are essential aspects of the phenomena of aging. Communication within the body and the consequent integration of behavior were considered the exclusive province of the nervous system up to the beginning of the present century. The emergence of endocrinology as a separate discipline can probably be traced to the experiments of Bayliss and Starling on the hormone secretion. This substance is secreted from cells in the intestinal walls when food enters the stomach; it travels through the bloodstream and stimulates the pancreas to liberate pancreatic juice, which aids in digestion. By showing that special cells secrete chemical agents that are conveyed by the bloodstream and regulate distant target organs or tissues, Bayliss and Starling demonstrated that chemical integration can occur without participation of the nervous system. William Bayliss and Ernest Henry Starling, two British physiologists, discovered and introduced the word hormone. In 1979, The Bayliss and Starling Society was founded as a forum for research scientists with specific interest in the chemistry, physiology and function of central and autonomic peptides. The Society also offered the travelling fellowship award for members who wanted to attend national and international academic conferences. Sometimes, the Society help schools to organize science fairs for secondary students and give them incentives to fall for related subjects. The term “hormone” was first used with reference to secretion. Starling derived the term from the Greek hormone, meaning “to excited or set in motion.” The term “endocrine” was introduced shortly thereafter, “Endocrine” is used to refer to glands that secrete products into the bloodstream. The term “endocrine” contrasts with “exocrine” which is applied to glands that secrete their products through ducts to the site of action. Examples of exocrine glands are the tear glands, the sweat glands, and the pancreas, which secretes pancreatic juice through a duct into intestine. Exocrine glands are also called duct glands, while endocrine glands are called ductless.
6. According to the passage, another term for exocrine lands is ________ -
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The climate crisis is poised to deliver a severe blow to America’s most threatened animals, with a new study finding that almost every species considered endangered is vulnerable in some way to global heating. Of the 459 animal species listed as endangered by the US government, researchers found that all but one, or 99.8%, have characteristics that will make it difficult for them to adapt to rising temperatures. The California condor, once close to being completely wiped out, faces increased risk of contamination in hotter conditions. Key deer, found only in the Florida Keys, face losing habitat to the rising seas. Whole classes of animals including amphibians, mollusks and arthropods are sensitive to the greatest number of climate-related threats, such as changes in water quality, shifting seasons and harmful invasive species that move in as temperatures climb. Mammals, such as the north Atlantic right whale and Florida panther, also face increased hardships, albeit on fewer fronts than amphibians, mollusks and arthropods. Despite the overwhelming peril faced by America’s endangered species due to the climate crisis, the report, published in Nature Climate Change, found a patchy response from the US government. Federal agencies consider just 64% of endangered species to be threatened by the climate crisis, while just 18% of listed species have protection plans in place. Astrid Caldas, a study co-author and a climate scientist at the Union of Concerned Scientists said: “While agencies have increasingly listed climate change as a growing threat to species whose survival is already precarious, many have not translated this concern into tangible actions, meaning a significant protection gap still exists.” Nearly half of Australian species are threatened by the climate crisis, researchers have found. A spokesman for the US Fish and Wildlife Service, which oversees the endangered species list, said that while a species may be sensitive to changes in the climate, this sensitivity may not be so severe as to warrant being put on the list. “Our process for determining this looks at five factors: threats to a species’ habitat, overutilization, disease or predation, existing regulatory mechanisms, and other factors that may affect its continued existence,” he said. “Through this scientifically rigorous process we examine and account for the effects of climate change.
5. The word “mechanisms” in paragraph 4 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 best option for each of the blanks.
The Rocky Mountains run almost the length of North America. They start in the North West, but lie only a (1)...........hundred miles from the centre in the more southern areas. Although the Rockies are smaller (2)............. the Alps, they are no less beautiful.
There are many roads across the Rockies, but the best way to see them is to travel by train. You start from Vancouver, the most attractive of Canada’s big cities. Standing with its feet in the water and its (3).........in the mountains, this city (4)................its residents to ski on slopes just 15 minutes by car from the city centre.
Thirty passenger trains a day used to (5)................off from Vancouver on the cross–continent railway. Now there are just three a week, but the ride is still a great adventure. You sleep on board, which is fun, but travel through some of the best site at night.(2)...............................
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Seniors in China are still highly likely to believe rumors and pseudoscience, according to reports. In recent years, China has seen more scientists and science communicators using digital platforms to combat pseudoscience, which is classified as rumors, statements, beliefs, ideas or practices that are stated as fact, but are often fabricated and scientifically untested. Despite that, many young Chinese have experienced difficulties when trying to pass on that message to older people. For example, last year, Dingxiang Doctor, a digital platform that debunks medical rumors online, released 101 articles that disproved common, inaccurate claims. However, many netizens said that when they forwarded the articles to family chat groups, they were questioned, scolded and even removed from the group by older family members. An online survey last year by Tencent, one of China’s biggest online businesses, indicated that nearly 40 percent of middle-aged and senior people had experienced online fraud, mostly related to healthcare products. Yun Wuxin, a food engineering expert who has popularized food science for more than 10 years, believes that, in general, members of the older generation lacked training in logical or critical thinking when they were young, so they have an exaggerated belief in personal experience, tradition or superstition. He said young people, especially today’s younger generation, have received better training and tend to hold skeptical or critical attitudes toward convention. He added that new media that popularize science in fresh, innovative ways - such as short videos, video blogs and animations - are very effective with young people. However, traditional methods, including television, community visits by scientists, neighborhood exhibitions and science columns in newspapers, are very important for middle-aged and elderly people who really need to understand science
2. According to paragraph 1, what is the mentioned problem of China? -
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Deforestation has important global consequences. Forests sequester carbon in the form of wood and other biomass as the trees grow, taking up carbon dioxide from the atmosphere. When forests are burned, their carbon is returned to the atmosphere as carbon dioxide, a greenhouse gas that has the potential to alter global climate, and the trees are no longer present to sequester more carbon. In addition, most of the planet’s valuable biodiversity is within forests, particularly tropical ones. Moist tropical forests such as the Amazon have the greatest concentrations of animal and plant species of any terrestrial ecosystem; perhaps two-thirds of Earth’s species live only in these forests. As deforestation proceeds, it has the potential to cause the extinction of increasing numbers of these species. On a more local scale, the effects of forest clearing, selective logging, and fires interact. Selective logging increases the flammability of the forest because it converts a closed, wetter forest into a more open, drier one. This leaves the forest vulnerable to the accidental movement of fires from cleared adjacent agricultural lands and to the killing effects of natural droughts. As wildfires, logging, and droughts continue, the forest can become progressively more open until all the trees are lost. Additionally, the burning of tropical forests is generally a seasonal phenomenon and can severely impact air quality. Record-breaking levels of air pollution have occurred in Southeast Asia as the result of burning for oil palm plantations. In the tropics, much of the deforested land exists in the form of steep mountain hillsides. The combination of steep slopes, high rainfall, and the lack of tree roots to bind the soil can lead to disastrous landslides that destroy fields, homes, and human lives. With the significant exception of the forests destroyed for the oil palm industry, many of the humid forests that have been cleared are soon abandoned as croplands or only used for lowdensity grazing because the soils are extremely poor in nutrients. The vegetation that contains most of the nutrients is often burned, and the nutrients literally “go up in smoke” or are washed away in the next rain. Although forests may regrow after being cleared and then abandoned, this is not always the case, especially if the remaining forests are highly fragmented. Such habitat fragmentation isolates populations of plant and animal species from each other, making it difficult to reproduce without genetic bottlenecks, and the fragments may be too small to support large or territorial animals. Furthermore, deforested lands that are planted with commercially important trees lack biodiversity and do not serve as habitats for native plants
and animals, many of which are endangered species.
1. What does the passage mainly discuss? -
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The town of Chichen-Itza was established during the Classic period close to two natural cavities (cenotes or chenes), which gave the town its name “At the edge of the well of the Itzaes”. The cenotes facilitated tapping the underground waters of the area. The dates for this settlement vary according to subsequent local accounts: one manuscript gives 415-35 A.D., while others mention 455 A.D. The town that grew up around the sector known as Chichen Viejo already boasted important monuments of great interest: the Nunnery, the Church, Akab Dzib, Chichan Chob, the Temple of the Panels and the Temple of the Deer. They were constructed between the 6th and the 10th centuries in the characteristic Maya style then popular both in the northern and southern areas of the Puuc hills. The second settlement of Chichen-Itza, and the most important for historians, corresponded to the migration of Toltec warriors from the Mexican plateau towards the south during the 10th century. According to the most common version, the King of Tula, Ce Acatl Topiltzin Quetzalcoatl, or Kukulkan as the Maya translated the name, reportedly took the city between 967 A.D. and 987 A.D. Following the conquest of Yucatán a new style blending the Maya and Toltec traditions developed, symbolizing the phenomenon of acculturation. Chichen-Itza is a clear illustration of this fusion. Specific examples are, in the group of buildings to the south, the Caracol, a circular stellar observatory whose spiral staircase accounts for its name, and, to the north, El Castillo. Surrounding El Castillo are terraces where the major monumental complexes were built: on the north-west are the Great Ball Court, Tzompantli or the Skull Wall, the temple known as the Jaguar Temple, and the House of Eagles; on the north-east are the Temple of the Warriors, the Group of the Thousand Columns, the Market and the Great Ball Court; on the south-west is the Tomb of the High Priest. After the 13th century no major monuments seem to have been constructed at Chichen-Itza and the city rapidly declined after around 1440 A.D. From its abandonment during the 15th century, Chichen-Itza underwent a process of gradual deterioration until the first excavations at the site began more than a century ago. Nevertheless, the excellent materials and building techniques used by the Maya in the construction of the buildings secured that the architectonic, sculptural and pictorial essence of Chichen-Itza would be conserved through the centuries
5. According to paragraph 3, what is the proof of cultural integration between the two civilisations? -
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 36 to 42.
It is estimated that by 2050 more than two-thirds of the world's population will live in cities, up from about 54 percent today. While the many benefits of organized and efficient cities are well understood, we need to recognize that this rapid, often unplanned urbanization brings risks of profound social instability, risks to critical infrastructure, potential water crises and the potential for devastating spread of disease. These risks can only be further exacerbated as this unprecedented transition from rural to urban areas continues.
How effectively these risks can be addressed will increasingly be determined by how well cities are governed. The increased concentration of people, physical assets, infrastructure and economic activities mean that the risks materializing at the city level will have far greater potential to disrupt society than ever before.
Urbanization is by no means bad by itself. It brings important benefits for economic, cultural and societal development. Well managed cities are both efficient and effective, enabling economies of scale and network effects while reducing the impact on the climate of transportation. As such, an urban model can make economic activity more environmentally-friendly. Further, the proximity and diversity of people can spark innovation and create employment as exchanging ideas breeds new ideas.
But these utopian concepts are threatened by some of the factors driving rapid urbanization. For example, one of the main factors is rural-urban migration, driven by the prospect of greater employment opportunities and the hope of a better life in cities. But rapidly increasing population density can create severe problems, especially if planning efforts are not sufficient to cope with the influx of new inhabitants. The result may, in extreme cases, be widespread poverty. Estimates suggest that 40% of the world's urban expansion is taking place in slums, exacerbating socio-economic disparities and creating unsanitary conditions that facilitate the spread of disease.
The Global Risks 2015 Report looks at four areas that face particularly daunting challenges in the face of rapid and unplanned urbanization: infrastructure, health, climate change, and social instability. In each of these areas we find new risks that can best be managed or, in some cases, transferred through the mechanism of insurance.What can be inferred from the passage?
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We find that bright children are rarely held back by mixed- ability teaching. On the contrary, both their knowledge and experience are enriched. We feel that there are many disadvantages in streaming pupils. It does not take into account the fact that children develop at different rates. It can have a bad effect on both the bright and the not-so-bright child. After all, it can be quite discouraging to be at the bottom of the top grade! Besides, it is rather unreal to grade people just according to their intellectual ability. This is only one aspect of their total personality. We are concerned to develop the abilities of all our pupils to the full, not just their academic ability. We also value personal qualities and social skills, and we find that mixed- ability teaching contributes to all these aspects of learning. In our classrooms, we work in various ways. The pupils often work in groups; this gives them the opportunity to learn to co-operate, to share, and to develop leadership skills. They also learn how to cope with personal problems as well as learning how to think, to make decisions, to analyze and evaluate, and to communicate effectively. The pupils learn from each other as well as from the teachers. Sometimes the pupils work in pairs; sometimes they work on individual tasks and assignments; and they can do this at their own speed. They also have some formal class teaching when this is appropriate. We encourage our pupils to use the library, and we teach them the skills they need in order to do this effectively. An advanced pupil can do advanced work; it does not matter what age the child is. We expect our pupils to do their best, not their least, and we give them every encouragement to attain this goal.
8. Which of the following statements can best summaries the main idea of the passage? -
Each sentence has a mistake. Findit by chosing A B C or D
Present discoveries and inventions will surely be the found for many other discoveries and inventions in the future
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Learning shouldn’t end when you reach a certain point in your career; it should be something you continuously pursue across your lifetime. As you mature, your areas of interest may change. Perhaps your personal and career goals may morph into something altogether different than what you originally intended. In some cases, life happens and you might find it necessary to take a break from your career or your education. But for people with a strong desire for lifelong learning, this pause is only temporary. Even though you may have begun an educational program and needed to take a pause later, it’s never too late to go back and finish what you started. People in modern age have more options to gain the knowledge they want and need. From a higher education standpoint, universities and colleges are working hard to transform themselves in different ways. For example, there has been a transition from traditional Ph.D.-style doctorates to applied doctorates like the Doctorate in Strategic Intelligence or Doctorate in Global Security. These academic programs have their students work to address real-world problems of practice. In this manner, they take the education they receive in their classes and work to apply it within the fields in which they are currently employed or hope to work in. In addition, some universities now offer dual degree programs, such as the dual master’s degree in emergency and disaster management and homeland security. Some institutions are also starting to provide accelerated degrees to allow their students to rapidly advance from a B.A. to an M.A., saving those students time and money on their educational pursuits. However, lifelong learning doesn’t just encompass full degree programs. With employers focusing on skillset development, there is an increasing desire for short program offerings as well. “Short programming” includes sets of courses that lead to a specific credential or badge. For instance, ASIS International offers a series of certifications, related to security and global studies, which can be used to add value to your professional portfolio. Another relevant certification is the Certified Threat Manager (CTM) certification offered by the Association of Threat Assessment Professionals. Short programming involves learning tracks, competency-based micro-credentials or stackable credentials. In some cases, certificates are perceived to be more valuable as they signal that their owner has current knowledge of a particular area; however, this perception differs from field to field
4. The word “standpoint” in paragraph 2 is closest in meaning to _______ -
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The history of American newspapers begins in the early 18th century with the publication of the first colonial newspapers. American newspapers began as modest affairs-a sideline for printers. They became a political force in the campaign for American independence. After independence, the first article of U.S. Constitution guaranteed freedom of the press. The U.S. Postal Service Act of 1792 provided substantial subsidies: Newspapers were delivered up to 100 miles for a penny and beyond for 1.5 cents, when first class postage ranged from six cents to a quarter. The American press grew rapidly during the First Party System (1790s-1810s) when both parties sponsored papers to reach their loyal partisans. From the 1830s onward, the Penny press began to play a major role in American journalism and its interests seemed to remarkably surprised the management board in the journal industry. Technological advancements such as the telegraph and faster printing presses in the 1840s also helped to expand the press of the nation as it experienced rapid economic and demographic growth. Editors typically became the local party spokesman, and hard-hitting editorials were widely reprinted. By 1900 major newspapers had become profitable powerhouses of advocacy, muckraking and sensationalism, along with serious, and objective news-gathering. During the early 20th century, prior to rise of television, the average American read several newspapers per-day. Starting in the 1920s, changes in technology again morphed the nature of American journalism as radio and later, television, began to play increasingly important competitive roles. In the late 20th century, much of American journalism became housed in big media chains. With the coming of digital journalism in the 21st century, all newspapers faced a business crisis as readers turned to the Internet for sources and advertisers followed them
3. What does the word “its” in paragraph 2 refer to? -
Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
Most people think that lions only come from Africa. This is understandable because in fact most lions do come from there but this has not always been the case. If we went back ten thousand years, we would find that there were lions roaming vast sections of the globe. However now, unfortunately only a very small section of the lion's former habitat remains.
Asiatic lions are sub-species of African lions. It is almost a hundred thousand years since the Asiatic lions split off and developed as a sub-species. At one time the Asiatic lion was living as far west as Greece and they were found from there, but in a band that spreads east through various countries of the Middle East, all the way to India. In museums now, you can see Greek coins thathave clear images of the Asiatic lion on them. Most of them are dated at around 500 B.C. However, Europe saw its last Asiatic lions roaming free two thousand years ago. Over the next nineteen hundred years the numbers of Asiatic lions in the other areas declined steadily, but it was only in the nineteenth century that they disappeared from everywhere but in India.
The Gir Wildlife Sanctuary in India was established especially to protect the Asiatic lion. There are now around three hundred Asiatic lions in India and almost all of them are in this sanctuary. However, despite living in a sanctuary, which makes them safe from hunters, they still face a number of problems that threaten their survival. One of these is the ever-present danger of disease. This is what killed more than a third of Africa’s Serengeti lions in 1994, and people are fearful that something similar could happen in the Gir Sanctuary and kill off many of the Asiatic lions there.
India's lions are particular vulnerable because they have a limited gene pool. The reason for this is interesting is because all of them are descended from a few dozen lions that were saved by a prince who took a particular interest in them. He was very healthy, and he managed to protect them; otherwise they would probably have died out completely.
When you see the Asiatic lion in India, what you sense is enormous vitality. They are very impressive animals and you would never guess that they have this vulnerability when you look at them.According to the passage, nowadays we can find the Asiatic lion .
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Where humans have planted crops for food, unless they are organic, poisonous chemicals have been sprayed on them; insecticides are used to kill insect pests and herbicides are used to kill weeds. Fungicides fight off fungal diseases. Artificial fertilizers are added to the soil to increase the yield of the crops. If these chemicals are used in excess, some of them dissolve in rainwater and drain into rivers, streams and ponds, polluting the water and killing the wildlife. The “weeds” competing with the farmers’ crops include wild flowers and many of these have become endangered through the use of herbicides. Insects rely on plants for food and breeding sites so the number of these are affected by a reduction in the number of plants. Many birds depend on insects for food so the numbers of birds may be affected by the use of both insecticides and herbicides. One of the reasons why the Barn Owl is endangered is due to a shortage of insects and it may also be poisoned by eating insects affected by chemical sprays. The case of DDT and other chemicals known as organo-chlorines is well known. These were first used extensively in the 1950s, sprayed onto crops to kill insect pests. Unfortunately, after a few years, it was noticed that birds of prey were rapidly declining in numbers and thousands of seed-eating birds were dying. By the 1960s, the once common sparrow hawk was a rare bird in Britain. The sparrow hawk’s prey was the seed-eating birds which were carrying the poisonous insecticides in their bodies. Consequently, many sparrow hawks and other birds of prey were being indirectly poisoned by the chemical sprays. The organo-chlorines also caused many birds to lay thin shelled eggs, which cracked easily. Research showed that the chemicals were entering the food chains and being stored in the fat of the animals’ bodies. For example, a thrush may eat snails which have eaten a sprayed cabbage plant. The thrush may not have eaten enough poison to be actually killed but a sparrowhawk eating several thrushes accumulates so much of the poison that it is killed. The chemicals become more concentrated as they travel up the food chain. Even most humans still have small amounts of organo-chlorines in their fatty tissues although these chemicals had been withdrawn from use by 1976. They are still used, however, in some Third World countries. By the 1980s, the sparrowhawk population had recovered dramatically and it is once again a common bird. This example shows just how dangerous the use of chemicals in the environment can be. As mentioned earlier, some plants are endangered through collectors such as the Venus fly-trap and some tropical orchids, but most threatened plants have become so through the destruction of their habitat. Once very common plants have almost disappeared because of the way humans have changed the land. For example, the Egyptian Papyrus, a type of reed, had been used for thousands of years for all sorts of things such as paper, medicine, boats, baskets, food etc. Then, when changes in the irrigation methods on the river Nile were introduced, this valuable plant almost completely disappeared. It was thought to be extinct until 1968 when a few plants were found in an undisturbed waterway. Orchids have been also collected from rainforests to become household favourites, causing many species to become endangered.
4. According to the passage, sparrow hawks are described as a species that ___________. -
Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
As a result of the recent oil crisis, 9.9 million of California’s 15 million motorists were subjected to an odd – even plan of gas rationing. The governor signed a bill forcing motorists with license plates ending in odd numbers to buy gas only on odd – numbered days, and those ending in even numbers on even – numbered days. Those whose plates were all letters or specially printed had to follow the odd – numbered plan.
Exceptions were made only for emergencies and out – of – state – drivers. Those who could not get gas were forced to walk, bike, or skate to work.
This plan was expected to eliminate the long lines at many service stations. Those who tried to purchase more than twenty gallons of gas or tried to fill a more than half filled tank would be fined and possibly imprisoned.All of the following are true EXCEPT