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

 In his early days as a direct, Charlie Chaplin produced 62 short, silent comdedy films in four years

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Ever since humans have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, and ideas. Tourists, the deaf, and the mute have had to resort to this form of expression. Many of these symbols of whole words are very picturesque and exact and can be used internationally, spelling, however, cannot.
Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can be a way of flirting or indicating that the party is only joking. A nod signifies approval, while shaking the head indicates a negative reaction.
Other forms of nonlinguistic language can be found in Braille (a system of raised dots read with the fingertips), signal flags, Morse code, and smoke signals. Road maps and picture signs also guide, warm, and instruct people. While verbalization is most common form of language, other systems and techniques also express human thoughts and feelings.

The word “wink” in the second paragraph means most nearly the same as      

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Hung Kings Temple was constructed to ____________ their contribution to found our country.

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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.
2. According to the passage, which of the following was the census definition of an urban area after 1880?

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Anna Gomez is a successful TV sports presenter, but most people still think of her as the famous women’s ice-skating champion who won several important competitions when she was younger. “As a child, my dream was actually to become a ballet dancer – I didn’t own any skates until I was nine, and didn’t become really keen on skating until I was fourteen,” says Anna. She went on to university, where, despite ice-skating almost all the time, she left with an excellent degree. “I felt I owed it to my parents. They supported me through university, and expected me to do well there – I didn’t feel I could disappoint them.” In a sport where most stars become famous as teenagers, Anna was unusual in being in her twenties before she won any major titles. “When I was younger, I got very angry at competitions, shouting at judges if I disagreed with them. That made me unpopular, especially with other skaters. My technique was just as good as theirs and I had a very encouraging coach at the time. The problem was in my head – I just didn’t think I had what it takes to be a champion. That changed as I won more competitions, and I was performing at my best by the age of twenty-five.” Anna retired from professional ice-skating five years later, having accomplished great success during that period. “It was a difficult decision. As you get near the end of your career, people always ask when you’re going to stop. At the time, I wasn’t sure that I was actually ready to give up. But, looking back, I’m glad I stopped when I did. You shouldn’t think too much about the past – just move on to the next thing.”  
2. What do we learn about Anna’s time at university?

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Spend just a minute watching the world population counter tick up on Worldometers and you’ll see just how quickly we’re swelling in numbers. The current figure stands at around 7.7 billion, and this is projected to become 9.8 billion by 2050, according to the UN. More people means more carbon footprints - more cars, waste and emissions, more houses and infrastructure to be constructed using the world’s limited resources, more mouths to be fed using more water and energy in food production. Governments recognise the severity of the situation and have mostly come together over global policies like the UN’s Paris Agreement, to limit carbon emissions and their impact on climate change. In addition, new technologies are being developed to make our use of resources more efficient. As for controlling population growth, the education of women is one key factor. Research shows the higher level to which a woman is educated, the fewer children she is likely to have. In Ghana, for example, women who have been to high school, have a fertility rate of between two and three children, compared with six for those who have no education. This could be for several reasons including learning about desired family size and understanding child health better. This means that the mother is more confident her children will survive. She is also likely to hold more sway within the family, arguing for fewer children if that is what she wants.  There is also plenty that individuals can do to reduce their personal footprint. Earth Overshoot Day is defined as the day when humanity has used up nature’s resource budget for the year. The Global Footprint Network calculates that moving Earth Overshoot day back by five days every year would mean that, by 2050, we’d be using the resources of less than one planet. Just eating 50% less meat and replacing it with vegetarian alternatives could save the planet five days. As David Attenborough says, if we want to save Earth, we can no longer afford to keep eating meat: “We are omnivores, so biologically, if you could have a biological morality, you can say, yes we evolved to eat pretty well everything. But now we’ve got to a stage in our own social evolution in which that is no longer practical.” Sir David says he himself now eats less meat and is bolstered by the knowledge that it’s helping the planet.  
7. Which of the following statements is TRUE, according to the passage?

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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.
3. According to paragraph 1, in what situation do people violate the patent law?

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There is a scam aimed at a child’s desire to be a published writer - usually as a poet, in a book of poems. How does the scam work? Keen teachers are unwittingly caught up in the promotion but are completely unaware of the dodgy side of the scheme. There are plenty of honest opportunities for children’s writing that don’t cost their parents a small fortune and provide a poor-quality product. Most books in scams are badly set out. They tend to be huge volumes, squashing in as many writers’ efforts as possible to make as much money as possible. They’re an embarrassment for the young poets. These competitions to discover hidden talent sound great in the glossy flyers. Schools too are offered a prize if a winner is from their school. Schools become unpaid ‘agents’ in promotion of the competitions. Parents are happy to pay a small entry fee. Each child hopes to get an ‘honourable mention’ with the possibility of being selected to be included in a book. The price of the book is not given. Naturally, if a child’s work were published, parents would want a copy of the book. In one such scheme the pre-order price was $67 with an extra $26 if the child’s photo was included. That’s nearly $100! Strangely, awards are given to those who pre-order a book! The books are not attractive. A copy at a market sold for $2. There were three to five kids’ poems squashed on a page, with over 3000 poems jammed into that one book. Clip Art was used to illustrate the poor publication. Look at the maths. 3000 kids multiplied by $100 equals $300 000. Now add the entry fees of, say, $2 - add another $6000! Enough to cover publicity! One place winner’ was upset when the parents realised this was a con to buy a book, but not buying the book made the parents feel guilty. Genuine competitions that publish books give a free copy to any ‘winner’ 
1. According to the passage, a scam is ____

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Set aside time each day Most of us can find 15 minutes or half an hour each day for some specific regular activity. It may be a free period or a regular wait, stay in the queue for a bus or meal - even while eating breakfast. One famous surgeon always made it a rule to spend at least 15 minutes on general reading before he went to sleep each night. Whether he went to bed at 10:00 p.m or 2:30 a.m. made no difference. Even if you cannot keep to this kind of discipline, it is a good idea to make sure you always have a general interest book in your pocket. Don’t forget it should be a book which entertains you and the English must not be too difficult for you. Checking your progress through pacing Nearly all speed reading courses have a "pacing element - some timing device which lets the student know how many words a minute he is reading. You can do this simply by looking at your watch every 5 or 10 minutes and noting down the page number you have reached. How do you know when 5 minutes have passed on your watch if you are busy reading the book? Well, this is difficult at first. A friend can help by timing you over a set period. Pace yourself every three or four days, always with the same kind of easy, general interest book. You should soon notice your habitual w. p. m rate creeping up. Check comprehension Obviously there is little point in increasing your w. p. m rate if you do not understand what you are reading. When you are consciously trying to increase your reading speed, stop after every chapter (if you are reading a novel) or every section or group of ten or twelve pages (if it is a textbook) and ask yourself a few questions about what you have been reading. If you find you have lost the thread of the story, or you cannot remember clearly the details of what was said, re-read the section or chapter. “Lightening speed” exercise Take 4 or 5 pages in the general interest book you happen to be reading at the time. Read them as fast as you possibly can. Do not bother about whether you understand or not. Now go back and read them at what you feel to be your normal w. p. m rate, the rate at which you can comfortably understand. After a “lightening speed” read through (probably around 6 w. p. m) you will usually find that your normal speed has increased -  perhaps by as much as 50 -100 w. p. m.
5. Looking at your watch every 5 or 10 minutes ____

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Botswana, officially the Republic of Botswana, is a country in southern Africa that shares borders with South Africa, Namibia and Zimbabwe. The capital, Gaborone, (1) _______ on the Notwane River in the South east of Botswana. The Kalahari Desert covers more than 70% of Botswana. The Kalahari isn’t a true desert because it rains more each year there than in most (2) _______ deserts. Despite this, Botswana is a dry country. When it does rain, the rain is often heavy and there are floods. Botswana is a popular tourist destination, with people from all over the world coming to see its amazing animals. During the seasonal floods, the land becomes a lush animal habitat. The wide variety of wildlife (3) __________ elephants and lions. Many visit Chobe National Park to see its 70,000 elephants, (4) __________ are the largest of all living elephants. The grassland and river valleys are home to giraffes, cheetahs, hyenas and wild dogs. The baobab tree, an icon of the African savannah, plays an important role in Botswana culture and nearly every part of it is useful. For example, it (5) __________ used to make rope and people pick the leaves to make soup

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I _________ smoking should be banned, especially in restaurants.

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Alzheimer's disease impairs a person's ability to recall memories, both distant and as a few hours before. Although there is no yet a cure for the illness, there may be hope for a cure with a protein called nerve growth factor. The protein is produced by nerve cells in the same region of the brain where Alzheimer's occurs. Based on this relationship, scientists from the University of Lund in Sweden and the University of California at San Diego designed an experiment to test whether doses of nerve growth factor could reverse the effects of memory loss caused by Alzheimer's. Using a group of rats with impaired memory, the scientists gave half of the rats doses of nerve growth factor while giving the other half a blood protein as a placebo, thus creating a control group. At the end of the four-week test, the rats given the nerve growth factor performed equally to rats with normal memory abilities. While the experiment do not show that nerve growth factor can stop the general process of deterioration caused by Alzheimer's, they do show potential as a means to slowing the process significantly.
1. With what topic is this passage mainly concerned?

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Many people in Britain and the US belong to at least one club or society. Club is often used to (1) _______ to a group of people who regularly meet together socially or take part in sports. Most young people’s groups are called clubs. A society is usually concerned (2) _____ a special interest, e.g. birdwatching or local history. National societies, such as the Royal Society for the Protection of Birds, usually have local branches. Social clubs have a bar where members can sit and talk to each other. Member of the upper class or business people may belong to a gentlemen’s club. Most of (3) ______ are in London and even today only some of them allow women to be members. They are places to relax in, (4) _______also to make business contracts and take clients. Some clubs combine social events with community service. Members of the Rotary Club and the Lions Club are usually (5) ______or business people. In the US, these organizations are called service clubs. Some are open only to men. They hold events to raise money for good causes, e.g. to provide scholarships for university students or to raise money for a hospital

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Some of the senses that we and other terrestrial mammals take for granted are either reduced or absent in cetaceans or fail to function well in water. For example, it appears from their brain structure that toothed species are unable to smell. Baleen species, on the other hand, appear to have some related brain structures but it is not known whether these are functional. It has been speculated that, as the blowholes evolved and migrated to the top of the head, the neural pathways serving sense of smell may have been nearly all sacrificed. Similarly, although at least some cetaceans have taste buds, the nerves serving these have degenerated or are rudimentary. The sense of touch has sometimes been described as weak too, but this view is probably mistaken. Trainers of captive dolphins and small whales often remark on their animals’ responsiveness to being touched or rubbed, and both captive and free ranging cetacean individuals of all species (particularly adults and calves, or members of the same subgroup) appear to make frequent contact. This contact may help to maintain order within a group, and stroking or touching are part of the courtship ritual in most species. The area around the blowhole is also particularly sensitive and captive animals often object strongly to being touched there  The sense of vision is developed to different degrees in different species. Baleen species studied at close quarters underwater – specifically a grey whale calf in captivity for a year, and free-ranging right whales and humpback whales studied and filmed off Argentina and Hawaii – have obviously tracked objects with vision underwater, and they can apparently see moderately well both in water and in air. However, the position of the eyes so restricts the field of vision in baleen whales that they probably do not have stereoscopic vision. On the other hand, the position of the eyes in most dolphins and porpoises suggests that they have stereoscopic vision forward and downward. Eye position in freshwater dolphins, which often swim on their side or upside down while feeding, suggests that what vision they have is stereoscopic forward and upward. By comparison, the bottlenose dolphin has an extremely keen vision in water. Judging from the way it watches and tracks airborne flying fish, it can apparently see fairly well through the air–water interface as well. And although preliminary experimental evidence suggests that their in-air vision is poor, the accuracy with which dolphins leap high to take small fish out of a trainer’s hand provides anecdotal evidence to the contrary.  
1. Which of the following could best reflect the main purpose of the author in the passage?

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Do you ever wish you were more optimistic, someone who always expected to be successful? Having someone around (25) ____ always fears the worst isn’t really a lot of fun - we all know someone who sees a single cloud on a sunny day and says, “It looks like rain”. But if you catch yourself thinking such things, it’s important to do something about it. You can change your view of life, according to psychologists. It only takes a little (26) ____, and you’ll find life more rewarding as a result. Optimism, they say, is partly about self-respect and confidence but it’s also a more (27) ____ way of looking at life and all it has to result offer. Optimists are more likely to start new projects and generally more prepared to take risks. Upbringing is obviously very important (28) ____ forming your attitude to the world. Some people are brought up to depend too much on others and grow up forever blaming other people when anything goes wrong. Most optimists, on the other hand, have been brought up not to regard failure as the end of the world - they just (29) ____ with their lives.

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“What we’re seeing in Australia, in a completely different environment, are fires that are approaching or even exceeding the magnitude of things that we only saw in the most remote forested regions in the world,” said Ross Bradstock, the director of the Center for Environmental Risk Management of Bushfires at the University of Wollongong in New South Wales. The numbers from Australia dwarf those from some of the most high-profile fires in recent years. The bushfires in southeastern Australia this season have burned about eight times as much land as the 2018 fires in California, which covered nearly two million acres and were the worst in that state’s recorded history.  In Australia’s history, most bad fire seasons have coincided with the warming of an El Niño pattern. But that is not the case this time, showing how much this season stands out and the danger the country faces with more unpredictable weather patterns in the future. “While scientists have long predicted that climate change would bring longer and more intense fire seasons”, Dr. Bradstock said, “Under his projections, Australia would not have seen this kind of devastation for another 40 to 50 years”.  “I guess I’m as shocked as anyone about what’s unfolding and, probably, like everyone else who’s involved and affected, we’ll very quickly recalibrate thinking about what we’re doing,” he said. Recalibrating means expecting these phenomenal fires to continue to occur, particularly as Australia’s drought shows few signs of ending and temperatures are expected to continue to climb after the warmest decade on record.  “We would be extremely foolish, given all the evidence and the magnitude of this event, to just laugh it off as a one-off phenomenon,” Dr. Bradstock said. “I think we have to get ready to deal with a season like this again in the not-too-distant future.” 
5. The word “it” in paragraph 4 refers to _______

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College is usually the first time young people are on their own without parents’ guidance or rules. Students learn to participate (1) _____ a responsible member of various groups within the college environment: fellow students, roommates, teachers, college staff, sports teammates, religious groups, study groups, romantic partners or extracurricular clubs. You’ll also learn how to grow your sense of (2)_____ identity. “Socialization is a process of learning what it means to be a member of a group and navigating one’s sense of self as (3) _____ of that process. Because there are many different groups on a college (4)_____ socialization might include finding like-minded peers on campus to differentiate one’s self from others and (5) _____ closer bonds with some group members (as in fraternities and sororities),” explained Karen Sternheimer, Associate Professor of Sociology at the University of Southern California

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Prosthetic body parts have been around in many shapes and forms for thousands of years. But up until just a few decades ago, they were often uncomfortable, provided little to no control for the user and didn’t look all that great either. Fast-forward to the present day and thanks to advances in medicine, robotics and neuroscience, a number of bionic body parts have been developed that have the power to be truly life-changing for those who need them the most, from a bionic eye to an artificial kidney to a thought-controlled robotic leg. Many of these bionic body parts are still in the early stages of production and are far from being rolled out to those that need them. That’s because there are all kinds of challenges to consider – not only the materials the body part is made from, but also integrating it into our bodies so it isn’t rejected, as well as developing ways for it to become part of our nervous system, so it behaves like any other limb or organ. Add to that the huge raft of financial, ethical, moral and political implications of enhancing our bodies with the help of technology. But it’s easy to overlook all of these concerns when the tech sounds so exciting, promising and like the robotic hands, arms and whole bodies of our sci-fi dreams. “The public perception of bionics is vastly different from the reality of prosthetics,” Kia Nazarpour, director of expertise in bio and environmental engineering, at Newcastle University, told us. "That’s thanks to science writers and researchers who showcase their work in a sci-fi oriented way to increase publicity."  
4. According to paragraph 2, what is NOT one of the problems encountered by bionic technology?

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The biggest difference between an eco-lodge and a green hotel is the setting in which you’ll find them. Eco lodges tend to be more remote, located in relatively pristine natural environments such as beaches, jungles and mountains. Green hotels, on the other hand, are more often associated with cities and towns. Eco lodges and green hotels both emphasize elements such as environmental responsibility and minimizing negative impact. The best ones offer renewable energy sources, recycling services, eco-friendly toiletries, energy efficient lighting, locally sourced food, organic linens and towels, non-toxic cleaning supplies, non-disposable dishes, water conservation methods and various other sustainability-focused initiatives. But eco lodges tend to be more dependent on the natural environment than green hotels. They are also generally more active in nature and wildlife conservation, more focused on educating visitors about the flora and fauna of local ecosystems, and more deeply connected with the area’s indigenous culture (whose influence is often incorporated into the lodge’s decor and restaurant menu). The best eco lodges also work to ensure positive relationships with the local people. They train and employ them at fair wages, take part in community development initiatives, offer activities that help visitors conserve and appreciate local customs, and contribute to the local economy. In this way, they reinforce the notion of ecotourism as a more sustainable long-term business model than altering or destroying habitats for quick financial gains  
2. The word "ones" in the passage refers to ____

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The biggest difference between an eco-lodge and a green hotel is the setting in which you’ll find them. Eco lodges tend to be more remote, located in relatively pristine natural environments such as beaches, jungles and mountains. Green hotels, on the other hand, are more often associated with cities and towns. Eco lodges and green hotels both emphasize elements such as environmental responsibility and minimizing negative impact. The best ones offer renewable energy sources, recycling services, eco-friendly toiletries, energy efficient lighting, locally sourced food, organic linens and towels, non-toxic cleaning supplies, non-disposable dishes, water conservation methods and various other sustainability-focused initiatives. But eco lodges tend to be more dependent on the natural environment than green hotels. They are also generally more active in nature and wildlife conservation, more focused on educating visitors about the flora and fauna of local ecosystems, and more deeply connected with the area’s indigenous culture (whose influence is often incorporated into the lodge’s decor and restaurant menu). The best eco lodges also work to ensure positive relationships with the local people. They train and employ them at fair wages, take part in community development initiatives, offer activities that help visitors conserve and appreciate local customs, and contribute to the local economy. In this way, they reinforce the notion of ecotourism as a more sustainable long-term business model than altering or destroying habitats for quick financial gains  
3. The word "initiatives" in the passage is closest in meaning to ___

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Your body will change in shape and________