Each sentence has a mistake. Findit by chosing A B C or D

A smile can be observed, described, and reliably indentify; it can also be elicited and manipulated under experimental conditions

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Modern society has given significant attention to the promises of the digital economy over the past decade. But it has given little attention to its negative environmental footprint. Our smartphones rely on rare earth metals, and cloud computing, data centers, artificial intelligence and cryptocurrencies consume large amounts of electricity, often sourced from coal-fired power plants. These are crucial blind spots we must address if we hope to capture the full potential of the digital economy. Without urgent system-wide actions, the digital economy and green economy will be incompatible with each other and could lead to more greenhouse gas emissions, accelerate climate change and pose great threats to humanity. The world’s data centers-the storehouses for enormous quantities of information - consume about three percent of the global electricity supply (more than the entire United Kingdom), and produce two percent of global greenhouse gas emissions-roughly the same as global air travel. A report by Greenpeace East Asia and the North China Electric Power University found that China’s data centers produced 99 million tonnes of carbon dioxide in 2018, the equivalent of about 21 million cars driven for one year. Greenhouse gases aren’t the only type of pollution to be concerned about.Electronic waste (e-waste), which is a byproduct of data center activities, accounts for two percent of solid waste and 70 percent of toxic waste in the United States. Globally, the world produces as much as 50 million tonnes of electronic e-waste a year, worth over US$62.5 billion and more than the GDP of most countries. Only 20 percent of this e-waste is recycled. The world and its intractable challenges are not linear-everything connects to everything else. We must raise awareness about these major blind spots, embrace systems leadership (leading across boundaries), boost circular economy ideas (decoupling economic activity from the consumption of finite resources), leverage an eco-economics approach (an environmentally sustainable economy) and encourage policy-makers to explore the interrelationships between government-wide, system-wide and societal results. We must also consider collective problem-solving by bringing together diverse perspectives from both the Global North and the Global South. We should take an inventory of the global and local damages caused by electronic devices, platforms and data systems, and frame issues about the digital economy and its environmental impact in broad societal terms.
6. According to paragraph 4, what direction should the global citizens follow to better the situation?

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Zoos used to be primarily a place for people to see wild animals they had never seen.  Now, however, zoos serve a new purpose – to be captive-breeding programs for endangered animals. There are less than a hundred Sumatran rhinos worldwide, and three were born in Cincinnati Zoo. When old enough, one of the males was sent to Way Kamabas National Park in Sumatra and this helped to start the process of re-populating his species in the wild and saving it from the extinction.  Other zoos have started captive-breeding programs as well. Zoos have saved the Arabian onyx, the black-footed ferret, the red wolf, the Guam rail, and the California condor. But the cost of the programs for saving the threatened animals is not cheap. The condor program alone costs up to $2 million a year. While it is mostly large-city zoos involved in captive breeding, smaller zoos do their part. The Miller Park Zoo in Bloomington, Illinois, is working on breeding the endangered, and small. Mount Graham red squirrel.  Zoos have always been involved in animal conservation to some degree, but the question of which animals to save is a big one. Endangered animals may not be the most exciting to see in a zoo, and to di conservation work the zoos must survive financially. Space is a problem as well. A zoo might be able to save a small number of large animals or a large number of small ones. Currently, the most threatened group of animals is amphibians. Zoos realize that visitors may not want to see frogs, salamanders, or other small animals and may only pay to see rhinos, lions, and tigers. Some scientists believe zoos should be less tourist attractions and more conservation sanctuaries. Thus, although zoos continue to do good work, they still confront tricky questions. There are a limited number of animals that can be cared for in zoos, and that means many species on the edge of extinction may not survive. The Sumatran orangutan and a thousand other threatened species have not made it into a captive-breeding program, but the species will continue to exist. How? In the Frozen Zoo. Cells from these animals are stored in the San Diego Zoo Institute for Conservation Research in liquid nitrogen. Only one animal in the Frozen Zoo is presently extinct, but many others are at dire risk. In the Frozen Zoo, however, the cells of animals will be preserved for study through their genetic material.
4. What are two important factors for zoos in deciding which animals to save?

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Gujarat’s favourite watering hole, Union territory of Daman, will add more activity  for its tourists than let them hang around only in the bars on its sun-kissed beaches. The administration has decided to develop leisure water sports on Jampore and Light house beaches at Moti Daman. The tourism department of Daman has already selected two operators to run these leisure water sports facilities. At present, facilities like creation of ramps, walking area and waiting area for the tourists are under construction at the beaches.  Director of Daman Tourism, Harshil Jain told TOI, “The leisure water sports activities are all set to start very soon. We have not decided the dates, but the contractors are working day-and-night to set up facilities soon at both the beaches.” He further said that leisure water sports will help boost tourism in Daman. “The flow of tourist will increase during the vacation period. Till now, tourists come here to enjoy sitting on the beaches, but now they will have the option for water sports, too,” Jain added.  According to tourism department officials, the sporting activity would be set up on the lines of Goa. Attractions like jet skis, banana ride, para sailing, pedal boating, rowing, kayaking and motorboating will add to the beach fun, they said. A senior tourism officer said, “Since adventure has a risk factor, we have asked the contractors to keep provision of accidental insurance cover for all the tourists using the ride. Customers too must be covered for accidental death, loss of limb and permanent and partial disability.” “On the weekends alone, more than 60,000 people visit Daman. We are pretty sure that the water sports activity will increase the numbers to more than 80,000,” asserted another official. 
1. Which best serves as the title for the passage?

Fill in each numbered blank with one suitable word or phrase.

Researchers in communication show that more feelings and intentions are (1) _______ and received nonverbally than verbally. Mehrabian and Wienerfollowing have stated that only 7% (2) _______ message is sent through words, with remaining 93% sent nonverbal (3) _______.

Humans use nonverbal communication because:

1. Words have limitations: There are (4) _______ areas where nonverbal communication is more (5) _______ than verbal, especially when we explain the shape, directions, personalities which are expressed nonverbally.

2. Nonverbal signal are powerful: Nonverbal cues primarily express inner (6) _______ while verbal messages deal basically with outside world.

3. Nonverbal message are likely (7) _______ more genuine: because nonverbal behaviors cannot be controlled as easily as spoken words.

4. Nonverbal signals can express feelings inappropriate to state: Social etiquette limits (8) _______ can be said, but nonverbal cues can communicate thoughts.

5. A separate communication channel is necessary to (9) _______ send complex messages: A speaker can add enormously to the complexity of the verbal message through simple nonverbal (10) _______

(5) _______

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If you see someone who’s looking blue, just reach out and offer a kind word, a smile, a hug. Sometimes people just feel (1) ____ they need someone to care. Maybe they’re confused and not sure what’s going on just in the moment, or in a bigger picture such as where their lives are (2) ____. The purpose of our lives is to love, laugh, be happy and to grow together, sharing with one another. If we are all too busy (3) ____ someone who is in emotional need, it can leave the person wondering what’s the real point of everything. By reaching out and smiling, showing compassion, listening, offering a (4) ____ of gentle advice, you remind both yourself and the (5) ____ what the bigger picture is, and bring a little burst of more light and happiness into the world. Enough of those bursts and lights contribute to the tipping point towards a more compassionate and joyful world

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Leonardo da Vinci was born on April 15, 1452, in the small Tuscan town of Vinci,  near Florence. Leonardo was the son of a wealthy Florentine public official and a peasant woman. In the mid- 1460s, the family settled in Florence, where Leonardo was given the best education that Florence could offer. He rapidly advanced socially and intellectually. He was handsome, persuasive in conversation and a fine musician and improviser. About in 1466, he apprenticed as a studio boy to Andrea Del Verrocchio. In Verrocchio’s workshop, Leonardo was introduced to many activities, from the painting of altarpieces and panel pictures to the creation of large sculptural projects. In 1472, he was entered in the painter’s guild of Florence, and in 1476, he was still mentioned as Verrocchio’s assistant. In Verrocchio’s Baptism of Christ, the kneeling angel at the left of the painting is by Leonardo.  In 1478, Leonardo became an independent master. His first commission, to paint an altarpiece for the chapel of the Palazzo Vecchino, the Florentine town hall, was never executed. His first large painting, The Adoration of the Magi, left unfinished, was ordered in 1481 for the Monastery of San Donato a Scopeto, Florence. Other works ascribed to his youth are the so-called Benois Madonna, the portrait Ginerva de’ Benci, and the unfinished Saint Jerome.  In 1482, Leonardo’s career moved into high gear when he entered the service of the duke of Milan, Ludovico Sforza, having written the duke an astonishing letter in which he stated that he could build portable bridges; that he knew the techniques of constructing bombardments and of making cannons; that he could build ships as well as armored vehicles, catapults, and other war machines; and that he could execute sculpture in marble, bronze, and clay. He served as a principal engineer in the duke’s numerous military enterprises and was so active also as an architect. In addition, he assisted the Italian mathematician Luca Pacioli in the celebrated work Divina Proportione.  Evidence indicates that Leonardo had apprentices and pupils in Milan, for whom he probably wrote the various texts later compiled as Treatise on Painting. The most important of his own paintings during the early Milan period was The Virgin of the Rocks, two versions of which exist; he worked on the compositions for a long time, as was his custom, seemingly unwilling to finish what he had begun.  From 1495 to 1496, Leonardo labored on his masterpiece, The Last Super, a mural in the refectory of the Monastery of Santa Maria Delle Grazie, Milan. Unfortunately, his experimental use of oil on dry plaster was technically unsound, and by 1500 its deterioration had begun. Since 1726 attempts have been made, unsuccessfully, to restore it; a concerted restoration and conservation program, making use of the latest technology, was begun in 1977 and is reversing some of the damage. Although much of the original surface is gone, the majesty of the composition and the penetrating characterization of the figures give a fleeting vision of its vanished splendor.  During his long stay in Milan, Leonardo also produced other paintings and drawings, most of which have been lost theater designs, architectural drawings, and models for the dome of Milan Cathedral. His largest commission was for a colossal bronze monument to Francesco Sforza, father of Ludovico, in the courtyard of Castello Sforzesco. In December 1499, however, the Sforza family was driven from Milan by French forces; Leonardo left the statue unfinished and he returned to Florence in 1500.
7. The word “concerted” in paragraph 5 is closest in meaning to __________

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Being part of a community with long history rooted in agriculture, Vietnamese people  especially those from older generations hold a strong belief for superstition about luck and bad luck. Even though people have become much less superstitious as they were before, some traditions still (1) ____ on until today like people’s habit. Let’s take a closer look at some common food-related superstitions and explore the reasoning behind them.  Regarding what food to avoid before taking an important examination, homophones and the shape of your food comes into (2) ____. These features are the criteria that people use to decide which food is good and what is bad to eat before an important examination. Students are restrained from eating bananas prior to an exam for (3) ____ of failing ‘like sliding on a banana skin’  They are also advised eating squid, which when disturbed, emit a substance that is ‘as black as ink’. The phrase carries the connotation of a black (bad) mark on your test. Eating squash, pumpkin, melon and peanuts was also a (4) ____. The words for pumpkin and melon in Vietnamese mean “stuck” and the word for peanut means to be ‘lost’ or ‘digress’. Duck meat and eggs are associated with bad luck since the shape of an egg resembles the zero number. On the (5) ____, eating any type of beans is considered good before an exam since bean in Vietnamese means the same thing with to ‘pass a test

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There is no conflict between big business and the green movement towards the fight  against climate change and the two are “totally compatible”. That’s according to Mike Hughes, Zone President, Schneider Electric UK & Ireland, who believes while there may be differences on how organisations play their part in the move towards the net zero target and the speed at which it happens, the two are “totally aligned”.  Speaking to ELN at the Energy Live Expo event last week, which attracted more than 450 people from across the industry, he said: “Big business goes where there is opportunity. Big business is a force for good. It has to be involved in this transition, in this change, in this climate change. If you look at it, there are two things that have happened in the last five to seven years that have really accelerated this topic. One is the general public getting on board with the whole concept of climate change, the emergency. The second is actually the business community and particularly the financial community starting to look at the financial risks around climate change and moving its money and where it will invest.”  Mr Hughes added the UK’s target for net zero carbon emissions by 2050 is a “hugely ambitious step” and it shows leadership, direction and ambition, enabling businesses to focus on where they can invest. He is also “extremely optimistic” and from a technology point of view, he believes there are technologies available to support the transition. He said: “It’s now around awareness, incentives from government, the right regulations to get people to make the right step and boosting the use of these technologies. I’m extremely positive.”
2. According to paragraph 1, what is the common goal for big corporates in environmental movement?

Each sentence has a mistake. Findit by chosing A B C or D

Traditionally, Americans and Asians have had very different ideas about love and married

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Most households in the UK will have a broadband connection and a lot of those  houses will also have experienced connection or speed issues. But what if there was a way to connect to the internet and benefit from a direct connection with much faster speeds? Enter Li-Fi.  Li-Fi stands for Light Fidelity and is a Visible Light Communications (VLC) system which runs wireless communications that travel at very high speeds. With Li-Fi, your light blub is essentially your router. It uses common household LED light bulbs to enable data transfer, boasting speeds of up to 224 gigabits per second.  Li-Fi and Wi-Fi are quite similar as both transmit data electromagnetically. However, Wi-Fi uses radio waves, while Li-Fi runs on visible light waves. This means that it accommodates a photo-detector to receive light signals and a signal processing element to convert the data into “streamable” content. For example, data is fed into an LED light bulb, it then sends data at rapid speeds to the photo-detector. The tiny changes in the rapid dimming of LED bulbs is then converted by the “receiver” into electrical signal. The signal is then converted back into a binary data stream that we would recognise as web, video and audio applications that run on internet-enabled devices.  While some may think that Li-Fi with its 224 gigabits per second leaves Wi-Fi in the dust, Li-Fi’s exclusive use of visible light could halt a mass uptake. Li-Fi signals cannot pass through walls, so in order to enjoy full connectivity, capable LED bulbs will need to be placed throughout the home. Not to mention, Li-Fi requires the light bulb is on at all times to provide connectivity, meaning that the lights will need to be on during the day. Additionally, where there is a lack of light bulbs, there is a lack of Li-Fi internet so Li-Fi does take a hit when it comes to public Wi-Fi networks.  However, using Li-Fi instead of Wi-Fi, you’ll negate lots of security problems associated with shared and often overloaded broadband networks. It will also be advantageous in areas where radio frequency waves do not reach. Due to its impressive speeds, Li-Fi could make a huge impact on the internet of things too, with data transferred at much higher levels with even more devices able to connect to one another. 
2. The word “boasting” in paragraph 2 is closest in meaning to _______

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Deforestation is the clearing, destroying, or otherwise removal of trees through  deliberate, natural or accidental means. It can occur in any area densely populated by trees and other plant life, but the majority of it is currently happening in the Amazon rainforest. The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.  Deforestation occurs for a number of reasons, including: farming, mostly cattle due to its quick turn around; and logging for materials and development. It has been happening for thousands of years, arguably since man began converting from hunter/gatherer to agricultural based societies, and required larger, unobstructed tracks of land to accommodate cattle, crops, and housing. It was only after the onset of the modern era that it became an epidemic.  One of the most dangerous and unsettling effects of deforestation is the loss of animal and plant species due to their loss of habitat; not only do we lose those known to us, but also those unknown, potentially an even greater loss. Seventy percent of Earth’s land animals and plants live in forests, and many cannot survive the deforestation that destroys their homes. The trees of the rainforest that provide shelter for some species also provide the canopy that regulates the temperature, a necessity for many others. Its removal through deforestation would allow a more drastic temperature variation from day to night, much like a desert, which could prove fatal for current inhabitants. In addition to the loss of habitat, the lack of trees also allows a greater amount of greenhouse gases to be released into the atmosphere. Presently, the tropical rainforests of South America are responsible for 20% of Earth’s oxygen and they are disappearing at a rate of 4 hectares a decade. If these rates are not stopped and reversed, the consequences will become even more severe.  The trees also help control the level of water in the atmosphere by helping to regulate the water cycle. With fewer trees left, due to deforestation, there is less water in the air to be returned to the soil. In turn, this causes dryer soil and the inability to grow crops, an ironic twist when considered against the fact that 80% of deforestation comes from small-scale agriculture and cattle ranching.  Further effects of deforestation include soil erosion and coastal flooding. In addition to their previously mentioned roles, trees also function to retain water and topsoil, which provides the rich nutrients to sustain additional forest life. Without them, the soil erodes and washes away, causing farmers to move on and perpetuate the cycle. The barren land which is left behind in the wake of these unsustainable agricultural practices is then more susceptible to flooding, specifically in coastal regions. Coastal vegetation lessens the impact of waves and winds associated with a storm surge. Without this vegetation, coastal villages are susceptible to damaging floods.
5. The following are negative effects of deforestation, EXCEPT __________

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.
Reference books are not designed to be read from the first page to the last but rather to be consulted to answer the questions and provide both general and specific pieces of information. One of the most (1)........-used reference books is a dictionary, which provides information about words. It lists meanings and spellings, tells how a word is pronounced, gives (2).............of how it is used, may reveal its origins and also lists synonyms and antonyms. To help you find the words faster, there are guide words at the top of each page showing the first and last words on that page - and of course it (3).......... to know the alphabet!
There may be numerous special sections at the back with facts about famous people and places, lists of dates and scientific names, etc. There is usually a section at the front (4)................. how to use the      dictionary, which includes the special abbreviations or signs.
An atlas is also a reference book and it contains charts, tables and geographical facts, as well as maps. Political maps locate countries and cities, physical maps show the formation of the land with its mountains and valleys, and economic maps show industries and agriculture. To find a specific place, you need to look in the (5).........      at the back of the atlas and the exact position on the map. There are      numerous map symbols that you need to know in order to be able to read a map-almost like a special language-and these are explained at the front of the atlas.

(1).......................

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Working on the computer is very tough on your body, which is not used to this modern type of work. Sitting has long been known to cause back pain and negatively influence circulation, which can promote cardiovascular disease. Extensive use of the keyboard and mouse can lead to stiffening of the muscles in your hands, arms, and neck, as well as inflammation and injuries. Staring at a bright screen for too long can cause dry eyes and headaches. Finally, computer work can be stressful, isolating, and lead to depression and anxiety. In other words, working on the computer is as unhealthy a job as you can imagine. First and foremost, sitting for long stretches of time is a very serious health risk! Sitting affects your blood circulation, your back experiences a steady stress, you are more likely to drink and eat stuff that isn’t good for you, and you burn very little calories, making it more likely that you overeat. As a result, sitting contributes to a host of conditions, most notably gaining weight, diabetes, heart disease, cancer, and consequently a shortened life span. Second, bad posture causes pain. You can develop bad posture from anything you do habitually, whether it’s sitting, standing, or walking. Your daily activities have an impact on your body and shape your muscles; they either tighten or become weak. The typical consequences associated with bad posture while working on the computer are pain in the back, shoulder, and neck, often resulting in tension headaches. Third, staring at the screen causes eye strain. Staring at a bright screen for hours can lead to eye fatigue or eye strain, headaches, blurred vision, burning, itching or tearing eyes, and temporary vision disorders. Fortunately, eye strain rarely results in a permanent condition and symptoms can be prevented or cured rather easily. Last, but not least, emotional pressure and isolation cause anxiety and depression. Computers are very efficient tools in that they help us with getting more work done in less time. At the same time, you spend less face-to-face time with your colleagues, family, or friends. This can lead to isolation, anxiety, and depression, i.e. both physical and mental health issues. The symptoms are manifold and can include tense muscles, back pain, headaches, poor sleep (insomnia), increased or flat breathing, quickened pulse, and generally signs of stress, depression, or anxiety.  
1. According to the passage, human body is NOT________working on the computer

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:
The United States Department of Education describes “giftedness” as exceptionally advanced performance or the potential for outstanding performance in intellectual, creative leadership, artistic, or specific academic fields. Children who demonstrate outstanding talents come from all social, cultural, and economic groups.
Educators believe that gifted students require special education services because their learning needs differ significantly from those of the general population. They learn more rapidly and are able to understand more abstract and complex ideas. They are also able to transform existing knowledge into new and useful forms, and to create new knowledge recognized for its originality, complexity, and elegance. Special education services and facilities for gifted children may enhance these abilities. In addition, some gifted learners may require special counseling services to address social or emotional adjustment issues that are complicated by their exceptional abilities.
Many regular elementary and secondary schools in the United States offer special programs designed specifically to meet the needs of gifted students. Some schools provide specialized education programs to gifted children exclusively. These schools offer advanced education in mathematics, science, technology, the arts, or other academic disciplines. Many schools rely on intelligence tests to identify gifted students. However, most guidelines for determining giftedness recommend the use of a combination of standardized test scores, rating systems developed by individual schools, classroom observation records, and performance assessments.
Gifted children may study a specially modified curriculum or may progress through academic subjects at an accelerated pace. Acceleration involves adapting education programs so that students may progress through particular subject material quicker than usual. These modifications may take place within the regular classroom setting or they may involve changing the child’s placement in school. Some gifted children gain early entrance to kindergarten, skip grades, enter college earlier than usual, or take specific courses with older children. Ideal programs for gifted students consider the individual needs of children and offer multiple options for services. These programs generally involve both advanced course materials and acceleration.

The word “those” in paragraph 2 is closest in meaning to     .

The National Automobile Show in New York has been one of the top auto shows in the United States since 1900. On November 3 of that year, about 8,000 people looked over the "horseless carriages." It was the opening day and the first opportunity for the automobile industry to show off its wares to a large crowd; however, the black-tie audience treated the occasion more as a social affair than as a sales extravaganza. It was also on the first day of this show that William McKinley became the first U.S. president to ride in a car.
The automobile was not invented in the United States. That distinction belongs to Germany. Nikolaus Otto built the first practical internal-combustion engine there in 1876. Then, German engineer Karl Benz built what are regarded as the first modern automobiles in the mid-1880s. But the United States pioneered the merchandising of the automobile. The auto show proved to be an effective means of getting the public excited about automotive products.

By happenstance, the number of people at the first New York show equaled the entire car population of the United States at that time. In 1900,10 million bicycles and an unknown number of horse-drawn carriages provided the prime means of personal transportation. Only about 4,000 cars were assembled in the United States in 1900, and only a quarter of those were gasoline powered. The rest ran on steam or electricity.

After viewing the cars made by forty car makers, the show's audience favored electric cars because they were quiet. The risk of a boiler explosion turned people away from steamers, and the gasoline-powered cars produced smelly fumes. The Duryea Motor Wagon Company, which launched the American auto industry in 1895, offered a fragrant additive designed to mask the smells of the naphtha that it burned. Many of the 1900 models were cumbersome—the Gasmobile, the Franklin, and the Orient, for example, steered with a tiller like a boat instead of with a steering wheel. None of them was equipped with an automatic starter.

These early model cars were practically handmade and were not very dependable. They were basically toys of the well-to-do. In fact, Woodrow Wilson, then a professor at Princeton University and later President of the United States, predicted that automobiles would cause conflict between the wealthy and the poor. However, among the exhibitors at the 1900 show was a young engineer named Henry Ford. But before the end of the decade, he would revolutionize the automobile industry with his Model T Ford. The Model T, first produced in 1909, featured a standardized design and a streamlined method of production—the assembly line. Its lower costs made it available to the mass market.

Cars at the 1900 show ranged in price from $1,000 to $1,500, or roughly $14,000 to $21,000 in today's prices. By 1913, the Model T was selling for less than $300, and soon the price would drop even further. "I will build cars for the multitudes," Ford said, and he kept his promise

Which of the following is closest in meaning to the word "launched" in paragraph 4 ________.

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In 1860 the United States was predominantly rural. Most people were engaged in  agriculture, and about 80 percent of the population actually resided on farms or in small villages. Only 20 percent lived in towns and cities of 2,500 or more, the census definition of an urban area after 1880. New York alone in 1860 had more than 1 million people, and only 8 cities could boast about a population of more than 100,000. Thereafter the transition from a rural to a predominantly urban nation was especially remarkable because of its speed. By 1900, urbanization, with all of its benefits, problems, and prospects for a fuller life, became the mark of modern America The changing physical landscape reflected the shift to an urbanized society. Railroad terminals, factories, skyscrapers, apartment houses, streetcars, electric engines, department stores, and the increased pace of life were all signs of an emerging urban America. Indeed, the vitality, dynamic quality, variety, and restless experimentalism in society centered in the urban communities where the only constant factor was change itself.  Urbanization did not proceed uniformly throughout the nation. New England and the Middle Atlantic states contained the highest percentage of city dwellers. In the Middle West, the growth of cities such as Chicago, Milwaukee, Cleveland, and St. Louis showed the importance of urbanization in that region. The three West Coast states also experienced rapid urban growth. In the South, urbanization developed much more slowly, although by 1910 the expansion of transportation, commerce, and industry had greatly increased the population of older cities such as New Orleans and stimulated the growth of new urban centers such as Birmingham. However, the South remained predominantly rural. Only somewhat more than 20 percent of the population in that region was urban by 1910.  In some regions the urban impact had a depressing effect upon the surrounding rural communities. Much of New England in the late nineteenth century presented a discouraging picture of abandoned farms and sickly villages as people forsook the countryside and rushed to the larger towns and cities. In the Middle West, particularly Ohio and Illinois, hundreds of townships lost population in the 1880’s.
5. Which of the following are mentioned in the passage as a sign of urbanized society in the United States in the late 1800’s?

Find synonym:
If we have solar panels on our roofs, we'll be able to generate our own electricity.

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While light at night can be beneficial, neutral, or damaging for individual species, its presence invariably disturbs ecosystems. For example, some species of spiders avoid lit areas, while other species are happy to build their spider web directly on a lamp post. Since lamp posts attract many flying insects, the spiders that don’t mind light gain an advantage over the spiders that avoid it. Light pollution poses a serious threat in particular to nocturnal wildlife, having negative impacts on plant and animal physiology. It can confuse animal navigation, alter competitive interactions, change predator-prey relations, and cause physiological harm. The rhythm of life is orchestrated by the natural patterns of light and dark, so disruption to these patterns impacts the ecological dynamics. Studies suggest that light pollution around lakes prevents zooplankton, such as Daphnia, from eating surface algae, causing algal blooms that can kill off the lakes’ plants and lower water quality. Light pollution may also affect ecosystems in other ways. For example, scientists have documented that night time light may interfere with the ability of moths and other nocturnal insects to navigate. Night-blooming flowers that depend on moths for pollination may be affected by night lighting, as there is no replacement pollinator that would not be affected by the artificial light. This can lead to species decline of plants that are unable to reproduce, and change an area’s long term ecology. Reducing light pollution implies many things, such as reducing sky glow, reducing glare, reducing light trespass, and reducing clutter. The method for best reducing light pollution, therefore, depends on exactly what the problem is in any given instance. Adjusting the type of lights used, so that the light waves emitted are those that are likely to cause severe light pollution problems  
5. The writer’s tone in the passage is __________________

Read the following passage and choose the best answer (A, B, C, D):
The field of 3-D printing comes with a new set of legal questions hospitals using the  technology will need to consider, said Bruce Kline, a technology licensing manager who oversees patents for new technology developed at Mayo Clinic. For starters, he said the STL file printers use are a lot like MP3 music files, in that they can be protected under copyright and require licensing to use. Copyright violations can occur if a purchased STL anatomical model file for rare disease is illegally shared with another institution that did not purchase the file from the vendor that created the file.  Under the law, if a device has a functional use it falls under patent law. If it is not functional, it falls under copyright law. Kline said most medical 3-D printing for educational models and complex anatomy evaluation currently falls under copyright. But, he said that will rapidly change in the coming years as customizable 3-D printable medical devices see wider use.  Additive manufacturing (AM) allows the creation of patient-specific devices at the point of care. Kline said an interesting fact is that these devices are FDA 510(k)-exempt if produced by a hospital instead of a medical device vendor. He said this blurs the lines between traditional vendor relationships, since the hospital can now become the manufacturer. However, if a hospital makes a device, it also becomes liable for it. He advised that it might be better for a commercial vendor to make the device for the hospital so the vendor assumes the liability of the device. Custom-made medical devices are also exempt under FDA regulations, Kline said. So, if a physician creates or modifies a device to meet the clinical needs of a specific patient’s anatomy, he said it is acceptable to use under current FDA rules. This may leave the door wide open for use of 3-D printed devices that are customized for each patient using their own 3-D imaging datasets.  It is possible printable device files may become available in the next few years to customize and print on demand. However, Kline said it will be much more difficult to enforce patents on these types of devices. He explained if someone makes one or two devices, there is no economical way for the creator of those device files to go after the user/maker of of unlicensed copies of the device to claim lost profits.
2. The word “enforce” in paragraph 4 is closest in meaning to _______

Read the following passage and choose the best answer (A, B, C, D):
Last week, China declared “mission accomplished” after landing a spacecraft, Chang’e-4, on the far side of the Moon. It was a remarkable endeavour. As the far side of the Moon never faces the Earth, mission control cannot communicate directly with the spacecraft, but only via an orbiting satellite. The terrain is more broken and cratered than the near side, so landing a craft is that much more difficult. Even Nasa was impressed: “a first for humanity and an impressive accomplishment!”. Yet mixed with admiration was trepidation. China, a latecomer to the space race, is now beginning to threaten the supremacy of America and Russia. But then Russia and America have long played their space exploration programmes for propaganda purposes. From the beginning, the space race was intimately bound up with the needs of the cold war. In 1957, the Soviet Union launched Sputnik, the first human craft to orbit the Earth. Four years later, Yuri Gagarin became the first man in space. Eight years later, on 21 July 1969, Neil Armstrong and Buzz Aldrin became the first humans to tread on the Moon. Their journey may have been fuelled in part by cold war desperation, but it was also an extraordinary triumph of knowledge and will, an act of the technological sublime. Once America was satisfied that the Soviet Union had been put in its place, space exploration became politically less important. As America downgraded its space ambitions, Chinese aspirations took flight. In 1992, the Chinese government approved the Shenzhou manned spaceflight programme. Eleven years later, Yang Liwei became the first Chinese astronaut in space. Fears about Chinese ambitions have been heightened by the changing context of the space race. During the cold war, America feared the Soviet Union, but was determined to thwart Moscow’s aims. Today, American apprehension stems from the worry that China’s emergence as the dominant global force cannot be checked, nor Beijing’s brutal despotism challenged. As liberal democracy frays in the west and authoritarian capitalism becomes entrenched in the east, self-doubt shapes US attitudes to China. Space exploration has long been fuelled by a mixture of humanistic dreams, technological leaps and tawdry politics. The Chang’e-4 mission is no different. How the space race will play out over the next decade, and what role China will adopt in global politics, remains uncertain. In the meantime, let us celebrate our new perspective of the dark side of the Moon.
7. The following sentences are true, EXCEPT _______