Rewrite the sentence:
Climate change leads to numerous catastrophic consequences.
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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.The word “eliminate” in the passage share the similar meaning with
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The fresh data released by the Centre for Monitoring Indian Economy (CMIE) showed that unemployment rate in the month of October jumped to 8.5 per cent, which is the highest in over three years. A new academic research paper released by the Centre of Sustainable Employment also concluded that there has been a marked decline in total employment in India between 2011-12 and 2017-18, reported The Indian Express. The research paper by Santosh Mehrotra and Jaiati K Parida stated as, "However, due to sharp increases in enrollment at every level of education over the noughties, it was expected that post -2012 total employment would increase, particularly in the non-farm sectors. But unfortunately, total employment during 2011-12 and 2017-18 declined by 9 million. The research further states that this happened for the first time in India’s history. It is really ironical noting that Coimbatore Municipal Corporation posted a vacancy for 549 sanitary workers. What followed was that 7000 highly qualified applicants even some of them with engineering and graduate degrees applied for the job. The Corporation witnessed the overwhelming turnout of 7000 candidates. Similarly, few month back, Chennai witnessed an unusual event when around 4600 of youth sent their application for 14 posts like sweepers and sanitary workers. The applicants had professional qualification like B.Tech, M.Tech, Master of Business Administration. Though the government constantly has been refuting the grim of job data but the facts and figures can’t be avoided any more. Therefore, now the government should take an initiative to overcome the high prevalence of unemployment and figure out the derivers of the job crisis. In this regard, it is worth to mention a book titled ‘Job crisis in India’ written by business journalist Raghavan Jagnnathan. The author in his book pointed out factors and reasons behind this decline of employment. He attributed that the absence of skills required in the highly technical nature of jobs is big factor. Another aspect of this is that in the majority of cases the skills or training acquired by the youths do not match or suit the core demand of the job. So at first the government must step up for reformation, innovation and renovation of the standard of the education in universities and colleges.
7. Which of the following statements is TRUE, according to the passage? -
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Myriad occupational schools in the central coastal city of Da Nang have received just a small number of applications over the past few years. “Last year we only had 142 new students, but the number of new enrollees is 50 this school year,” Truong Van Hung, rector of the Duc Tri Da Nang Vocational College, said, adding the school has set a target of recruiting 1,200 students for the 2014-2015 academic year. “Closing the school is just a matter of time,” he said. Similarly, the Viet A Vocational School in Hai Chau District in Da Nang has not recruited any new enrollee for over one year given the absence of job opportunities for its graduates. “We do not want to enroll because we cannot help students land jobs after they graduate,” a leader of Viet A said. “We will only admit new students when we can have a partnership with companies who can employ our students after they finish their studies.” Elsewhere, vocational schools in the southern province of Dong Nai are ‘frozen’. The Dong Nai Information Technology-Telecommunications Vocational School in the academic year of 2013-2014 enrolled only 82 students compared with a target of 1,000; the Nhon Trach Industrial Engineering Vocational School only had 200 out of its goal of 600 students for the school year; the 26-3 Vocational School received 150 students while they set a target of 250; and the South-Eastern Electromechanical Vocational School only recruited 300 out of the 500 students they planned to admit. The situation means that equipment for training programs at those schools has been left unused and covered with rust. Local experts have commented that if the lack of students persists, vocational schools are at high risk of being closed, sooner or later.
4. According to paragraph 3, what is the reason for “the vocational schools in the southern province of Dong Nai being ‘frozen’”? -
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After World War II drew to a close in the mid-20th century, a new conflict began. Known as the Cold War, this battle pitted the world’s two great powers–the democratic, capitalist United States and the communist Soviet Union–against each other. By the mid1950s, the U.S.-Soviet Cold War had worked its way into the fabric of everyday life in both countries, fueled by the arms race and the growing threat of nuclear weapons, wide-ranging espionage and counter-espionage between the two countries, war in Korea and a clash of words and ideas carried out in the media. These tensions would continue throughout the space race, exacerbated by such events as the construction of the Berlin Wall in 1961, the Cuban missile crisis of 1962 and the outbreak of war in Southeast Asia. Space exploration served as another dramatic arena for Cold War competition. On October 4, 1957, a Soviet R-7 intercontinental ballistic missile launched Sputnik (Russian for “traveler”), the world’s first artificial satellite and the first man-made object to be placed into the Earth’s orbit. Sputnik’s launch came as a surprise, and not a pleasant one, to most Americans. In the United States, space was seen as the next frontier, a logical extension of the grand American tradition of exploration, and it was crucial not to lose too much ground to the Soviets. In addition, this demonstration of the overwhelming power of the R-7 missile– seemingly capable of delivering a nuclear warhead into U.S. air space–made gathering intelligence about Soviet military activities particularly urgent. Beginning in the late 1950s, space would become another platform for the competition, as each side sought to prove the superiority of its technology, its military firepower and–by extension–its political-economic system.
5. The word “superiority” in paragraph 3 is closest in meaning to ______ -
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Generation gaps form when two age groups begin to see the world from significantly different perspectives. Generation gaps existed long before the 1960s - in the early 19th century, political scientist Alexis de Tocqueville commented, “Among democratic nations, (1) ____ generation is a new people.” But they tend to emerge with greater frequency as the (2) ____ of societal change increases. For example, in the 1800s, chances were that your father’s world looked a lot (3) ____ your own. In the 21st century, even a short span of 20 years can bring radical changes in technology (and the way we use it), moral and religious beliefs, and attitudes about education, work, friends and family life. Longer life spans also increase the prevalence of generation gaps. For babies born in 1920, life (4) ____ in the United States was 56.4 years. For babies born in 2009, it’s 78.7 years. Longer life spans mean that more generations are living and working simultaneously. That means (5) ____ for the first time in history, there are four distinct generations (and four generation gaps) in the workplace -
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:
Clara Barton became known as “The Angel of the Battlefield” during the American Civial War. Born in Oxford, Massachusetts in 1821, Clara Barton’s interest in helping soldiers on the battlefield began when she was told army stories from her father. Another event that influenced her decision to help soldiers was an accident her brother had. His injuries were cared for by Barton for 2 years. At the time, she was only 11 years old. Barton began teaching school at the age of 15. She taught for 18 years before she moved to Washington, D.C. in 1854.
The civil war broke out 6 years later. Immediately, Barton started was service by helping the soldiers with their needs. At the battle of Bull Run, Clara Barton received permission from the government to take care of the sick and hurt. Barton did this with great empathy and kindness. She acknowledged each soldier as a person. Her endurance and courage on thebattlefield were admired by many. When the war ended in 1865, she used 4 years of her life to assist the government in searching for soldiers who were missing during the war.
The search for missing soldiers and years of hard work made her feeble physically. In 1869, her doctors recommended a trip to Europe for a rest. While she was on vacation, she became involved with the International Red Cross, an organization set up by the Geneva Convention in 1864. Clara Barton realized that the red Cross would be a big help to the United States. After she returned to the United States, she worked very hard to create an American red Cross. She talked to government leaders and let American people know about the Red Cross. In 1881, the Notional Society of the Red Cross was finally established with its headquarters in Washington, D.C. Clara Barton managed its activities for 23 years.
Barton never let her age stop her from helping people. At the age of 79, she helped flood victims in Galveston, Texas. Barton finally resigned from the Red Cross in 1904. She was 92 years old and had truly earned her titled “The Angel of the Battlefield”.What can be inferred about the government?
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We all want to live in a clean and green world and breathe pollution free air. For this kind of environment we desperately need a fossil fuel free world. Scientists are toiling hard to come up (1)______ alternative fuels which can replace conventional fuels. One such study was presented at the 237th National Meeting of the American Chemical Society. This study throws interesting light on the first economical, eco-friendly process to (2)______ algae oil into biodiesel fuel. The scientists are quite hopeful that one day America will become independent (3)______ fossil fuels. Ben Wen is the (4)______ researcher and vice president of United Environment and Energy LLC, Horseheads, N.Y. According to him, “This is the first economical way to produce biodiesel from algae oil. It costs much less than conventional processes because you would need a much smaller factory, there (5)______ no water disposal costs, and the process is considerably faster.” -
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Music can bring us to tears or to our feet, drive us into battle or lull us to sleep. Music is indeed remarkable in its power over all humankind, and perhaps for that very reason, no human culture on earth has ever lived without it. From discoveries made in France and Slovenia, even Neanderthal man, as long as 53,000 years ago, had developed surprisingly sophisticated, sweet- sounding flutes carved from animal bones. It is perhaps then, no accident that music should strike such a chord with the limbic system – an ancient part of our brain, evolutionarily speaking, and one that we share with much of the animal kingdom. Some researchers even propose that music came into this world long before the human race ever did. For example, the fact that whale and human music have so much in common even though our evolutionary paths have not intersected for nearly 60 million years suggests that music may predate humans. They assert that rather than being the inventors of music, we are latecomers to the musical scene.
Humpback whale composers employ many of the same tricks that human songwriters do. In addition to using similar rhythms, humpbacks keep musical phrases to a few seconds, creating themes out of several phrases before singing the next one. Whale songs in general are no longer than symphony movements, perhaps because they have a similar attention span. Even though they can sing over a range of seven octaves, the whales typically sing in key, spreading adjacent notes no farther apart than a scale. They mix percussive and pure tones in pretty much the same ratios as human composers – and follow their ABA form, in which a theme is presented, elaborated on and then revisited in a slightly modified form. Perhaps most amazing, humpback whale songs include repeating refrains that rhyme. It has been suggested that whales might use rhymes for exactly the same reasons that we do: as devices to help them remember. Whale songs can also berather catchy. When a few humpbacks from the Indian Ocean strayed into the Pacific, some of the whales they met there quickly changed their tunes – singing the new whales’ songs within three short years. Some scientists are even tempted to speculate that a universal music awaits discovery.
According to the passage, which of the following is true of humpback whales?
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A new study shows that urbanization shifts this seasonal cue in nuanced ways, with cities in cold climates triggering earlier spring plant growth and cities in warm climates delaying it. The study also found that the urban heat island effect, the phenomenon in which cities are warmer than their surroundings, is not the only culprit behind the shift, suggesting that other aspects of urbanization, such as pollution, changes in humidity and fertilizer runoff, may also influence plants’ seasonal patterns. Researchers analyzed millions of observations of 136 plant species across the U.S. and Europe to study how regional temperature and the local density of people-a proxy for urbanization—affect when plants sprout leaves and blossoms. Their results revealed a complex story: Separately, warmer temperatures and higher population density each spurred earlier springs. A 3.6-degree Fahrenheit increase in temperature bumped up plants’ production of leaves and flowers by about five and six days, respectively. A fourfold increase in human population density advanced flowering and leaf production dates by about three days. But the team found that when these two factors worked together, local temperature had an outsized influence. In cold regions—areas with an average November-to-May temperature of about 18 degrees-plants produced leaves and flowers about 20 days earlier in locations with about 26,000 people per square mile, compared with equally frigid wildland. When an area’s average November-to-May temperature jumped to 68, however, leaves and flowers appeared four and six days later, respectively, in locations with about 26,000 people per square mile, compared with equally balmy wildland. In New York, for example, plants are likely sprouting leaves about 9.5 days earlier and blossoms eight days earlier than uninhabited regions with the same temperature. Jacksonville, in contrast, is likely pushing leaf production later by about one day and flowers by about half a day, with leaves appearing two days later and flowers a day later in Houston. Even after accounting for urban heat islands, the team’s models revealed cities significantly affect plants’ springtime growth. “Not only are there other things going on, but they actually matter quite a lot,” said study co-author Brian Stucky, Florida Museum research scientist. Plants may not be the only organisms affected by seasonal shifts, he added. “Seasons are such a big part of our lives. We define our world around seasonal things. Those rhythms are what we think of as the normal way the world works.”
5. The word “proxy” in paragraph 2 is closest in meaning to _______ -
Rewrite the sentence:
He prefers siting at home to playing outside. -
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Stage and film acting both involve performances in front of an audience. There are fundamental differences between the two. When you act for the stage, you are performing in front of a live audience. That means that your voice and your body movements must be clear even to those seated at the back row. Film acting, on the other hand, requires no voice projection. This is because you are performing in front of the camera. Although a film actor still needs to put the right expression to pull off a role realistically, overdoing movement or being overly expressive actually works against him in film acting because this can be construed as overacting. Controlled and small gestures are the requirements when acting for film. Another difference between stage acting and film acting is the material that is used. Theater involves doing well-known plays time and time again. As such, directors, producers and even avid theater-goers know the plays by heart. Some would even know every line and have developed expectations on how it should be delivered. When a line is not correctly said or the action delivered is not what is expected, an actor can be criticized severely. This is not an issue with film acting because the script is freshly-written. There are basically no expectations on how a role is supposed to be played. Putting the character to life becomes your responsibility and casting directors often choose talents based on their ability to give an authentic and believable performance. The fact that stage acting is done in real time also differentiates it from film acting. The scenes are done in sequence, often building up to a climax. This means that stage actors can’t afford to make mistakes. They have to memorize their lines well or risk forgetting in the middle of the performance. Stage actors must also exhibit quick thinking in case something unexpected happens on stage. Film acting is not done in front of a live audience. Although actors are encouraged to perform the scene perfectly on the first take because of budgetary considerations, a scene can always be redone in case the director is not satisfied with it. When an actor forgets his lines, there is always a script that can be referred back to without causing any damage to the outcome of the movie.
8. Which of the following can be inferred from the passage? -
Choose the best answer:
Organisms play ________ important role in keeping the nature balanced. -
Stop Pollution Now!
Pollution is a really big problem on our planet and it must (1) …. immediately. It must be stopped before our planet goes extinct. There are three main reasons, in my opinion, why pollution should be stopped.
The first reason why we should stop pollution is that pollution is destroying the environment we live in. Carbon dioxide is a big (2) ……….. to pollution. Carbon dioxide affects our climate in many different ways. The way it works is that certain ‘greenhouse gases’ can't escape (3) …….. our atmosphere because they get trapped. The second reason why we should stop pollution is that it also has an influence on us – (4) ……….. Pollution also influences human life and that is a big problem. According to the World Health Organization, indoor air pollution from the burning of coal or biomass fuels like wood risks lives of millions of people. Air pollution causes two million deaths per year, mostly from heart disease and respiratory disorders (5) …….. infections and lung cancer.
The third reason why we should stop pollution is that (6) …………. we do, we can live longer on this planet. If we don’t stop pollution and global warming, something really bad will happen (7) ….. us. Humans have destroyed the planet so quickly. We can live longer and extent our existence on this planet so that our children’s children can live in a planet without worries. In short, pollution must be stopped immediately. The earth is our only home and we must protect it and take care of it as much as we can. Pollution must be stopped before we (8) ………. our planet.
et.
(6) …......
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When it comes to carnivals, few can rival the world famous Notting Hill Carnival. The carnival is the undoubted highlight for much of the West London community, attracting more than one million people every year. (1) ___________ becoming an annual event in 19665, the Notting Hill Carnival has grown to become the second biggest street festival in the world – bettered only by the Rio Carnival in Brazil. The event is led by members of the West Indian community to (2) ________ the entire community of Notting Hill and beyond together in celebration of music, dancing, colour and food. First held in 1959, just a year after the Notting Hill riots, the carnival has been transformed from a small indoor event into one that generates (3) __________ estimated £93m for the London economy. But what brings more than a million people to the Notting Hill carnival? Well, there is the attraction of more than 20 miles of some of the most vibrant, (4) ___________ and outlandish costumes that you will ever see, as well as some fantastic food stalls and cool Caribbean (5) ___________ but the 40,000 volunteers work hard to make this an event for people from all walks of life -
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:
Pollution is a threat to many species on Earth, but sometimes it can cause species to thrive. Such is the case with Pfiesteria piscicida. A one-celled creature called a dinoflagellate, Pfiesteria inhabits warm coastal areas and river mouths, especially along the eastern United States. Although scientists have found evidence of Pfiesteria in 3,000-year-old sea floor sediments and dinoflagellates are thought to be one of the oldest life forms on earth, few people took notice of Pfiesteria.
Lately, however, blooms – or huge, dense populations – of Pfiesteria are appearing in coastal waters, and in such large concentrations the dinoflagellates become ruthless killers. The blooms emit powerful toxins that weaken and entrap fish that swim into the area. The toxins eventually cause the fish to develop large bleeding sores through which the tiny creatures attack, feasting on blood and flesh. Often the damage is astounding. During a 1991 fish kill, which was blamed on Pfiesteria on North Carolina’s Neuse River, nearly one billion fish died and bulldozers had to be brought in to clear the remains from the river. Of course, such events can have a devastating effect on commercially important fish, but that is just one way that Pfiesteria causes problems. The toxins it emits affect human skin in much the same way as they affect fish skin. Additionally, fisherman and others who have spent time near Pfiesteria blooms report that the toxins seem to get into the air, where once inhaled they affect the nervous system, causing severe headaches, blurred vision, nausea, breathing difficulty, short-term memory loss and even cognitive impairment.
For a while, it seemed that deadly Pfiesteria blooms were a threat only to North Carolina waters, but the problem seems to be spreading. More and more, conditions along the east coast seem to be favorable for Pfiesteria. Researchers suspect that pollutants such as animal waste from livestock operations, fertilizers washed from farmlands and waste water from mining operations have probably all combined to promote the growth of Pfiesteria in coastal waters.All of the following are true, according to the passage, EXCEPT .
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Taking piano lessons and solving math puzzles on a computer significantly improve specific math skills of elementary schoolchildren, according to a new study. The results, (1)______ were published in the journal Neurological Research, are the latest in a series that links musical training to the development of higher brain functions. Researchers worked with 135 second-grade students at a school in Los Angeles after (2)______ a pilot study with 102 students. Children that were given four months of piano training as well as time playing (3)______ newly designed computer software scored 27 percent higher on math and fraction tests than other children. Piano instruction is thought to enhance the brain's "hard wiring" for spatial-temporal reasoning, or the ability to visualise and transform objects in space and time, says Professor Gordon Shaw, who led the study. At the same time, the computer game allows children to solve geometric and math puzzles that boost their ability to (4)______ shapes in their mind. The findings are significant (5)______ a grasp of proportional math and fractions is a prerequisite to math at higher levels, and children who do not master these areas of math cannot understand more advanced math that is critical to high-tech fields. -
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Political and economic reforms launched in 1986 have transformed the country from one of the poorest in the world, with per capita income around US $100, to lower middle income status within a quarter of a century with per capita income of around US$ 2,100 by the end of 2015. Vietnam’s per capita GDP growth since 1990 has been among the fastest in the world, averaging 5.5 percent a year since 1990, and 6.4 percent per year in the 2000s. Vietnam’s economy continued to strengthen in 2015, with estimated GDP growth rate of 6.7 percent for the whole year. The Vietnamese population is also better educated and has a higher life expectancy than most countries with a similar per capita income. The maternal mortality ratio has dropped below the upper-middle-income country average, while under-five mortality rate has fallen by half, to a rate slightly above that average. Access to basic infrastructure has also improved substantially. Electricity is now available to almost all households, up from less than half in 1993. Access to clean water and modern sanitation has risen from less than 50 percent of all households to more than 75 percent. Vietnam’s Socio-Economic Development Strategy (SEDS) 2011-2020 gives attention to structural reforms, environmental sustainability, social equity, and emerging issues of macroeconomic stability. It defines three “breakthrough areas”: promoting human resources/skills development (particularly skills for modern industry and innovation), improving market institutions, and infrastructure development. In addition, the five-year Socio-Economic Development Plan 2011-2015 focused on three critical restructuring areas - the, banking sector, state-owned enterprises and public investment that are needed to achieve these objectives. The recent draft of the SEDP 20162020 acknowledges the slow progress of the reform priorities of the SEDP 2011-2015. With agriculture still accounting for almost half the labor force, and with significantly lower labor productivity than in the industry and services sectors, future gains from structural transformation could be substantial. The transformation from state to private ownership of the economy is even less advanced. The state also wields too much influence in allocating land and capital, giving rise to heavy economy wide inefficiencies. So, adjusting the role of the state to support a competitive private sector-led market economy remains a major opportunity. This will be important for enhancing productivity growth which has been stagnating for a long time.
7. What does the word "stagnating" in the last paragraph mean? -
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There are many types of family systems around the world. In North America and northern Europe, the nuclear family (with two generations - a father, a mother and one or more children) is often seen as the most typical. In contrast, in most other parts of the world, extended families, which include other family members such as grandparents, aunts, uncles and cousins, are seen as the norm. The common view is that the nuclear family has become the norm in many Western societies as a result of industrialization and urbanization. This trend began in the late eighteenth and nineteenth centuries, when people were forced to move to cities to find work in the factories that sprang up during the Industrial Revolution. In the twentieth century, greater industrialization resulted in even more people leaving their large extended families. Urbanization also meant that people lived in much smaller houses, which were not big enough for an extended family. The trend towards nuclear families meant that many of the duties and responsibilities of a family, such as providing food and shelter, cleaning the home, preparing the food, caring for children and their education, and caring for the sick and elderly are no longer shared among the members of the extended family. The parents (or parent) now have to do this, with some help from the state. However, this is the price that people pay for the higher standard of living that may come from living in a city. We may think we know what we mean by a ‘nuclear’ family and an extended family, but reality is more complicated than most people believe. Most nuclear families are part of extended families: children have grandparents and, in many cases, aunts, uncles and cousins as well. Part of what makes them ‘nuclear’ is that they live in their own separate household, but it is not the whole story. In Greece or Italy, for example, a nuclear family may live in its own flat, but the extended family may live in the same apartment block or in the same street and family members see each other and even eat together every day. There is at least one more factor to consider. Family members may be separated from each other by geographical distance, but they may have close emotional ties. Even in North America and northern Europe, grandparents usually have close bonds with their grandchildren, and families often travel long distances so that they can see each other. Grandparents often help their adult children, for example, by cooking and looking after their children in emergencies. In the same way, when their parents become too old to live on their own, adult children may take them into their own homes. As a result, they turn their nuclear family into an extended family. The structure of families changes over time. The effects of urbanization and industrialization are enormous, but they are not the only reasons for the changes. People marry, have children, become widowed, divorce and die. Children grow up and adults grow old. Nuclear families become extended families and extended families become nuclear families. Family ties stay strong or become weak. One thing is certain: in a changing world, the family will continue to change, but ultimately, it is likely to continue to be the basic unit of society
2. What made the nuclear family become the norm? -
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A satellite is best understood as a projectile, or an object that has only one force acting on it — gravity. Technically speaking, anything that crosses the Karman Line at an altitude of 100 kilometers (62 miles) is considered in space. However, a satellite needs to be going fast — at least 8 km (5 miles) a second — to stop from falling back down to Earth immediately. If a satellite is traveling fast enough, it will perpetually “fall” toward Earth, but the Earth’s curvature means that the satellite will fall around our planet instead of crashing back on the surface. Satellites that travel closer to Earth are at risk of falling because the drag of atmospheric molecules will slow the satellites down. Those that orbit farther away from Earth have fewer molecules to contend with. There are several accepted “zones” of orbits around the Earth. One is called lowEarth-orbit, which extends from about 160 to 2,000 km (about 100 to 1,250 miles). This is the zone where the ISS orbits and where the space shuttle used to do its work. In fact, all human missions except for the Apollo flights to the moon took place in this zone. Most satellites also work in this zone. Geostationary or geosynchronous orbit is the best spot for communications satellites to use, however. This is a zone above Earth’s equator at an altitude of 35,786 km (22,236 mi). At this altitude, the rate of “fall” around the Earth is about the same as Earth’s rotation, which allows the satellite to stay above the same spot on Earth almost constantly. The satellite thus keeps a perpetual connection with a fixed antenna on the ground, allowing for reliable communications. When geostationary satellites reach the end of their life, protocol dictates they’re moved out of the way for a new satellite to take their place. That’s because there is only so much room, or so many “slots” in that orbit, to allow the satellites to operate without interference. While some satellites are best used around the equator, others are better suited to more polar orbits — those that circle the Earth from pole to pole so that their coverage zones include the north and south poles. Examples of polar-orbiting satellites include weather satellites and reconnaissance satellites
6. According to paragraph 4, which of the following is the reason why satellites move out of the way? -
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Most researchers agree that artificial intelligence (AI) peaked around 1985. A public (1) _______ science-fiction movies and excited by the growing power of computers had high expectations. For years, Al researchers had implied that a breakthrough was just (2) ____ the corner. Marvin Minsky said in 1967 that within a generation the problem of creating AI would be (3) ____ solved. Prototypes of medical-diagnosis programs and speech recognition software appeared to be making progress. It proved to be a false dawn. Thinking computers and household robots failed to (4) ______, and a backlash ensued. "There was undue optimism in the early 1980s’, says David Leaky, a researcher at Indiana University. “Then when people realised these were hard problems, there was retrenchment’. By the late 1980s, the term AI was being avoided by many researchers, who opted instead (5) ____ themselves with specific subdisciplines such as neural networks, agent technology, case-based reasoning