Choose the best answer:
Your parents will help you with the problem. You should tell them the story.

 

 

Read the following passage and choose the best answer (A, B, C, D):
Whether a species is endangered—meaning at risk of extinction—depends on which definition you use. The International Union for Conservation of Nature’s Red List of Threatened Species classifies an animal as endangered when its numbers in the wild have dropped so low that it’s at “extremely high risk” of extinction. Meanwhile, the United States’ Endangered Species Act of 1973 takes into consideration any destruction to a species’ habitat, whether it has been over-consumed, any disease or predation that threaten it, whether any other man-made factors put it in danger, and what policies currently exist to protect it. When members of the public or a state agency propose to the U.S. Fish & Wildlife Service or the National Marine Fisheries Service that a species be listed as endangered under the law, research and management plans are formed to help those species survive. It is illegal under the Endangered Species Act to capture, hunt, shoot, or otherwise harm an animal that’s listed as endangered. Sometimes, federal agencies decide that although a species could be considered endangered, other species are higher priorities. In those cases, the animal or plant gets limited protections. One animal whose numbers have increased through conservation is the bald eagle. There were only about 500 bald eagles in the continental United States in the 1960s because of pesticides that damaged the shells of their eggs. Conservation efforts including captive breeding programs, habitat protection, and a ban on the insecticide DDT helped the bald eagle’s numbers soar back into the thousands. Another is the giant panda, which was declared no longer endangered in 2016 thanks to 50 years of efforts to save it. U.S. Rep. John Dingell, who wrote the Endangered Species Act, argued that “only natural extinction is part of natural order.” Scientists believe that 227 species - including the grizzly bear, the peregrine falcon and the gray wolf - were saved from extinction in the first 33 years of the law’s existence. Still, critics argue that the act is expensive and ineffective because it protects so many species. Several federal courts have heard and rejected arguments that the Endangered Species Act is unconstitutional, and members of Congress have tried to weaken the law in small ways.
4. According to paragraph 2, what can happen to the species filed under the endangered list?

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More than a decade ago the UK investigative journalist Nick Davies published Flat Earth News, an exposé of how the mass media had abdicated its responsibility to the truth. Newsroom pressure to publish more stories, faster than their competitors had, Davies argued, led to journalists becoming mere “churnalists”. Shocking as Davies’ revelations seemed in 2008, they seem pretty tame by today’s standards, writes Ben Lorica, Chief Data Scientist at O’Reilly. We now live in a post-truth world of Fake News and “alternative facts”; where activists don’t just seek to manipulate the news agenda with PR but now use advanced technology to fake images and footage. A particularly troubling aspect of these ‘”deepfake” videos is their use of artificial intelligence to fabricate people saying or doing things with almost undetectable accuracy. The result is that publishers risk running completely erroneous stories – as inaccurate as stating that the world is flat – with little or any ability to check their source material and confirm whether it is genuine. The rise of unchecked fakery has serious implications for our liberal democracy and our ability to understand what’s truly going on in the world. The technology to manipulate imagery has come a long way since Stalin had people airbrushed out of history. Creating convincing yet fake digital content no longer requires advanced skills or a well-resourced (mis)information bureau. Anyone with a degree of technical proficiency can create content that will fool even the experts. Take the faked footage of Nancy Pelosi earlier this year, which was doctored to make her look incoherent and was viewed two and a half million times before Facebook took it down. This story shows how social media is giving new life to the old aphorism that “a lie can go halfway around the world before the truth has a chance to put its boots on”. The propagation of lies and misinformation is immeasurably enhanced by platforms like Twitter and Facebook that enable virality. What’s more, the incentives for creating fake content now favour malicious actors, with clear economic and political advantages for disseminating false footage. Put simply, the more shocking or extreme the content, the more people will share it and the longer they will stay on the platform. Meanwhile, counterfeiters can manipulate the very tools being developed to detect and mitigate deepfak content, just as the security industry inadvertently supplies software that can be misused for cybercrime.
4. The word “it” in paragraph 3 refers to _____

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
One of the highest honors for formalists, writers, and musical composers is the PulitzerPrize. First awarded in 1927, the Pulitzer Prize has been won by Ernest Hemingway, Harper Lee,John F. Kennedy, and Rodgers and Hammerstein, among others. As with many famous awards,this prize was named after its founder, Joseph Pulitzer.
Joseph Pulitzer’s story, like that of many immigrants to the United States, is one ofhardship, hard work and triumph. Born in Hungary, Joseph Pulitzer moved to United States in1864. He wanted to be a reporter, but he started his American life by fighting in the AmericanCivil War. After the war, Pulitzer worked for the German - language newspaper, the WestlichePost. His skills as a reporter were wonderful, and he soon became a partial owner of the paper.
In 1978, Pulitzer was able to start a newspaper of his own. Right from the first edition,the newspaper took a controversial approach to new. Pulitzer wanted to appeal to the averagereader, so he  produced  exciting  stories  of  scandal  and  intrigue.  Such  an  approach   iscommonplace today, but in Pulitzer’s time it was new and different. The approach led to thediscovery of many instances of corruption by influential people. Pulitzer ‘paper became veryfamous and is still produced today.
The success of Joseph Pulitzer’s newspaper made him a very wealthy man, so he wantedto give something back to his profession. Throughout his later years, he worked to establishuniversity programs for the teaching of journalism, and he funded numerous scholarships toassist journalism students. Finally, he wanted to leave a legacy that would encourage writers toremember the importance of quality. On his death, he gave two million dollars to ColumbiaUniversity so they could award prizes to great writers
The Pulitzer Prize recipients are a very select group. For most, winning a Pulitzer Prize isthe highlight of their career. If an author, journalist, or composer you know has won a PulitzerPrize, you can be sure they are at the top of their profession.a

According to the reading passage, how did Joseph Pulitzer appeal to the average reader?

Read the following passage and choose the best answer (A, B, C, D):
Most sources of illumination generate light over an appreciable period, and indeed if  an object is lit for a very brief time(less that 1/25 second), the human eye will not react in time to see the object. A photographic emulsion - that is, a light-sensitive coating on photographic film, paper, or glass - will, however, record much shorter bursts of light. A photographic flash can therefore be used to capture high-speed movement on film as well as to correct deficiencies of the normal surrounding lighting. Photoflash is now generated electronically, but the earliest form, first used in 1864, was a paper bag containing magnesium wire and some oxygen-rich substance, such as potassium chlorate. When the bag was ignited, the metal burned with an intense flash. A contemporary observer reported that “this quite unsafe device seems to have done nothing worse that engulf the room in dense smoke and lead to pictures of dubious quality and odd poses.”  The evolution of the photoflash was slow, flashbulbs, containing fine wire made of a metal, such as magnesium or aluminum, capable of being ignited in an atmosphere of pure oxygen at low pressure, were introduced only in the 1920’s. In the earliest type, the metal was separated from the oxygen by a thin glass bulb. The flash was fired by piercing the bulb and allowing the oxygen to come into contact with the metal, which ignited spontaneously. Later bulbs were fired by an electric battery, which heated the wire by passing a small current through it. Other combinations, such as the pairing of oxygen difluoride with zirconium, have also been used. In each case enough energy is given out to heat the oxidizable metal momentarily to a white hot emission of visible light. The smoke particles are so small that they cool rapidly; but since they are white, they contribute to the brilliance by reflecting the light from their still glowing neighbors. A slightly bigger form of the metal will burn for a longer time. 
7. According to the passage, what helps a flashbulb burn longer?

Read the following passage and choose the best answer (A, B, C, D):
Normally a student must attend a certain number of courses in order to graduate, and each course which he attends gives him a credit which he may count towards a degree. In many American universities the total work for a degree consists of thirty-six courses each lasting for one semester. A typical course consists of three classes per week for fifteen weeks; while attending a university a student will probably attend four or five courses during each semester. Normally a student would expect to take four years attending two semesters each year. It is possible to spread the period of work for the degree over a longer period. It is also possible for a student to move between one university and another during his degree course, though this is not in fact done as a regular practice. For every course that he follows a student is given a grade, which is recorded, and the record is available for the student to show to prospective employers. All this imposes a constant pressure and strain of work, but in spite of this some students still find time for great activity in student affairs. Elections to positions in student organizations arouse much enthusiasm. The effective work of maintaining discipline is usually performed by students who advise the academic authorities. Any student who is thought to have broken the rules, for example, by cheating has to appear before a student court. With the enormous numbers of students, the operation of the system does involve a certain amount of activity. A student who has held one of these positions of authority is much respected and it will be of benefit to him later in his career.
Normally a student would at least attend ____ classes each week.
4. Some students are enthusiastic for positions in student organizations probably because ____

Each sentence has a mistake. Find it by choosing the letter A, B, C or D.

Watching television too much have adverse effects about children’s cognitive ability.

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Books have been around for thousands of years. When ancient civilizations first started developing writing systems, they would write on just about anything, from stone to tree bark. Ancient Egyptians were the first to use paper-like materials, called “papyrus”, which they made by pounding flat the woven stems of the papyrus plant. It was not long before the ancient Egyptians began gluing together papyrus sheets to form scrolls, which were the first steps toward books as you know. The birthplace of bookbinding is considered to be India in the 2nd century B.C., where Hindi scribes would bind palm leaves that were etched with religious texts between two wooden boards using twine. The technique became popular in the Middle East and Eastern Asia, and spread to the Romans by the 2nd century A.D. In the mid-15th century, German Johannes Gutenberg invented the first mechanical printing press. His invention was revolutionary because it enabled mass production of booksfor the first time. Before the printing press, a few pages per day could be produced by handcopying. Afterward, printing presses could produce as many as 3,600 pages per day. Today, modern publishers take advantage of incredible advances in technology to produce books in many sizes and shapes very quickly. Although there are many types of processes and machines available, most processes involve similar steps. Printers print the text of a book on large sheets of paper, sometimes as large as a newspaper page. Working with large volumes of paper allows printers to lower costs and produce books more efficiently.The large sheets are then cut into smaller pages that are still about twice the size of a finished book. The smaller pages are then divided into small groups, folded in half, and sewn together. Lastly, the folded and sewn pages are cut down to their finished size and glued to the spine of the final book’s cover. Depending on the quality of the book, additional finishing touches may be added, such as blank pages at the front and back of the book or special tape around the edges of the cover to increase durability. Although printed books may never go away completely, today’s readers will most certainly soon become more familiar with e-books. “E-book” refers to an electronic book, which is simply the text of a book displayed electronically, either via the Internet, a CD-ROM, a tablet, an e-book reader, or even a mobile phone. As electronic devices, such as tablets and mobile phones, become more commonplace, e-books are expected to become more and more popular. One of the benefits of e-books is that they save paper, which helps the environment by reducing the demand for trees  
2. Ancient Egypt was mentioned in paragraph 1 as the place where _____.

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Hardcover and paperback are two types of books and bookbinding processes. A hardcover book is also called a hardback or hardbound. On the other hand, a paperback also goes by the names softback and soft cover. Paperbacks can be further classified as trade paperbacks and mass-market paperbacks. Paperback book, as its name implies, has a soft card or a thick paper cover over the pages. This type of covering is less heavy but prone to folding, bending, and wrinkles with use and over time. Hardcover books are characterized with a thick and rigid covering. This covering allows protection for the pages and makes the book durable and usable for a long time. Oftentimes, a hardcover book has a dust that protects the books from dust and other wear and tear. Some books are even made durable by using leather or calfskin as a book covering. In terms of manufacturing and purchasing books, hardcover books are more expensive due to the materials and processes. Pages of hardcover books are acid-free paper. This type of paper allows preservation of the ink and is ideal for books in use and preserving them for a long time. On the other hand, paperbacks use cheap paper, usually newsprint. The reason for this is to lower production costs and being readily made available for the masses. The paper in a hardcover book is usually stitched together before being glued, stapled, or sewn to the book’s spine. Due to the stitches, a hardcover book can have signatures, a place where the binding threads are visible. Meanwhile, a paperback book’s pages are glued together and glued again to the spine. This makes the pages loose or separated while being in use. Hardcover books are often applied to academic books, references books, commercial, and bestsellers that have enjoyed financial success. Other books in the hardcover version are books of collectible value. Publishers often release a hardcover version of the book to show investment so that they can project a high return of investment. This is a large contrast regarding paperbacks. Paperback books are done for new or succeeding editions, reprinting of books or books with little profit margin. Publishers use the paperback editions to stretch the profit for the book. The first release or first edition of a literary work is purposefully done as a hardcover book followed by paperback versions.
5. According to paragraph 4, which category of book sis NOT typically published as hardcover?

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Although the “lie detectors” are being used by governments, police departments, and businesses that all want guaranteed ways of detecting the truth, the results are not always accurate. Lie detectors are properly called emotion detectors, for their aim is to measure bodily changes that contradict what a person says. The polygraph machine records changes in heart rate, breathing, blood pressure, and the electrical activity of the skin (galvanic skin response, or GSR). In the first part of the polygraph test, you are electronically connected to the machine and asked a few neutral questions (“What is your name?”, “Where do you live?”). Your physical reactions serve as the standard (baseline) for evaluating what comes next. Then you are asked a few critical questions among the neutral ones (“When did you rob the bank?”). The assumption is that if you are guilty, your body will reveal the truth, even if you try to deny it. Your heart rate, respiration, and GSR will change abruptly as you respond to the incriminating questions. That is the theory; but psychologists have found that lie detectors are simply not reliable. Since most physical changes are the same across all emotions, machines cannot tell whether you are feeling guilty, angry, nervous, thrilled, or revved up form an exciting day. Innocent people may be tense and nervous about the whole procedure. They may react physiologically to a certain word (“bank”) not because they robbed it, but because they recently bounced a check. In either case the machine will record a “lie”. The reverse mistake is also common. Some practiced liars can lie without flinching, and others learn to beat the machine by tensing muscles or thinking about an exciting experience during neutral questions
1. What is the main idea of this passage?

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Hamams, or bath houses, are a traditional part of Turkish culture. They represent an important piece of Turkey’s long history and serve as a window into the past. However, these bath houses are quickly disappearing because of the changing habits of the Turkish people. Hamams hold a strong place in the history of Turkey and many date back hundreds of years. Traditionally, all kinds of people went to hamams because Islam has strict laws for cleanliness. Believers must wash themselves regularly, particularly before their daily prayers. As most people in Turkey didn’t have access to running water in their homes, the hamam was the perfect to get clean, relax, and catch up with friends. Today, however, the tradition of going to the humam is quickly dying out for many young people. Now almost everyone has running water in their bathrooms, so they prefer to bathe at home. As a result, Turkish people are not going to humans as often as they used to. These days, instead of relying on locals, many hamams are trying to attract foreign tourists. Some of the best hamams in Turkey are located in Istanbul, the country’s largest city. The Cagaloglu hamam is a great example. It was a gift to the people from the Sultan in 1741 and is one of the last old hamams to be built during the Ottoman Empire. Many visitors are impressed by the high domed ceilings, marble floors, and marble walls used throughout. A typical session at a hamam can last well over an hour. Visitors will be welcomed into camekan, or entrance hall. There they will be able to relax with friends and chat over a cup of tea. They will also be able to change into the customary pestemal, or Turkish towel, which wraps around the waist like a skirt. When ready, visitors will head into the hararet, or hot room. There they will lie on the hot floor and be scrubbed clean and massaged by one of the in-house masseurs or masseuses. Men and women always bathe separately, but their experience are very similar. Although many hamams are in danger of closing, they will always remain a part of Turkish culture. An experience in one of Istanbul’s famous bath houses is not to be misses on any visit to Turkey. It will certainly leave you refreshed, relaxed, and squeaky clean for your next adventure
6. According to the passage, there are some of the best hamams located in _________ 

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There are about 3,000 plants __________ values as medicines against cancer, AIDS, heart disease and many other sicknesses.

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Air pollution is the most prominent and dangerous form of pollution. It occurs dues to many reasons. Excessive burning of fuel which is a necessity of our daily lives for cooking, driving and other industrial activities releases a huge amount of chemical substances in the air every day; as a result, these pollute the air. Smoke from chimneys, factories, vehicles or burning of wood basically occurs due to coal burning. This releases sulphur dioxide into the air making it toxic. The effects of air pollution are evident too. Release of sulphur dioxide and hazardous gases into the air causes global warming and acid rain which in turn have increased temperatures, erratic rains and droughts worldwide making it tough for animals to survive. We breathe in every polluted particle from the air, the result is an increase in asthma and cancer in the lungs. Another effect of air pollution is ozone layer depletion. Ozone layer is the thin shield high up in the sky that prevents ultra violet rays from reaching the Earth. As a result of human activities, chemicals, such as chlorofluorocarbons (CFCs) which play a key role, were released into the atmosphere which contributed to the destruction of ozone layer. Water pollution has taken toll of all the surviving species of the earth. Almost 60% of the species live in water bodies. It occurs due to several factors; the industrial wastes dumped into the rivers and other water bodies cause an imbalance in the water leading to its severe contamination and death of aquatic species. If you suspect that nearby water sources have been contaminated by a corporation then it might be a good idea to hire an expert to see you options. Moreover, spraying insecticides, pesticides like DDT on plants also pollutes the ground water system and oil spills in the oceans have caused irreparable damage to the water bodies. Eutrophication is another big source; it occurs due to daily activities like washing clothes or utensils near lakes, ponds or rivers; this forces detergents to go into water which blocks sunlight from penetrating, thus reducing oxygen and making it inhabitable. Water pollution not only harms the aquatic beings but it also contaminates the entire food chain by severely affecting humans dependents on these. Waterborne disease like cholera, diarrhea have also increased in all places. Another type of pollution common in the countryside is soil pollution. Soil pollution occurs due to the incorporation of unwanted chemicals in the soil due to human activities. Insecticides and pesticides absorb the nitrogen compounds in the soil making it unfit for plants to derive nutrition. Release of industrial waste, mining and deforestation also damages the soil. Since plants can’t grow properly, they can’t hold the soil and this leads to soil erosion.
5. What is NOT mentioned as a cause of water pollution?

Environmental Concerns

Earth is the only place we know of in the universe that can support human life. (1) ........ human activities are making the planet less fit to live on. The western world (2) ........ on consuming two-thirds of the world's resources while half of the world's population do so (3) ........ to stay alive. We are rapidly destroying the very resource we have by which all people can survive and prosper. Everywhere fertile soil is (4) ........ built on or washed into the sea. Renewable resources are exploited so much that they will never be able to recover completely. We discharge pollutants into the atmosphere without any thought of the consequences. As a (5) ........ the planet's ability to support people is being reduced at the very time when rising human numbers and consumption are (6) ........ increasingly heavy demands on it. The Earth's natural resources are there for us to use. We need food, water, air, energy, medicines, warmth, shelter and minerals to keep us fed, comfortable, healthy and (7) ……... If we are sensible in how we use the resources they will (8) ........ indefinitely. But if we use them wastefully and excessively they will soon run out and everyone will suffer.

(7) ........

Read the following passage and choose the best answer (A, B, C, D):
The British are particular about timings and being late is frowned upon, but being on  time is a complicated matter because in some situations, being a few minutes early on others means being exactly on time and in some instances, it is completely acceptable to arrive 10 minutes to a few hours later than the stated time. This can be a minefield for someone who is new to the UK, so here are some basics rules that will help you get your timings right whatever the situation.  In formal meetings, such as job interviews, you should arrive at least five minutes before your meeting. This will give you time to compose yourself before your big meeting. In the UK, arriving late for a formal meeting is seen as unprofessional and will reflect badly on you. If you are running late, ring your host to let them know you will be late. On arrival, apologize sincerely and offer a reason for your lateness, such as you got lost or the train was delayed. It will help you redeem yourself. However, if you are late because you set off later than you should have, it’s wise to keep that to yourself! With appointments such as visits to the doctor or dentist, the time you are given for your appointment isn’t necessarily the time you will be seen. It is not uncommon you may have to wait between 15-30 minutes before you are seen by a doctor and that can be much longer if it is a hospital appointment. Nevertheless, you should arrive at least five minutes before your appointment and it is recommended you take a drink and something to read.  When you start a new job, you are given your typical working hours. For example, if you are expected to start at 9am, it is not acceptable to arrive after this time. Most employers make an exception if you are late once in a while. If you have an appointment, you need to seek permission from your employer to arrive later on that day. Being late consistently will land you in trouble and you can be sacked from your job if after three warnings you are still late.  There is an unsaid rule that you can be a few minutes late for a lecture or seminar once in a while. When you are late, you should enter quietly and find a seat at the back of the room. At the end of lecture or seminar, you should offer your apology to the lecturer. If you have been invited to a dinner party, you should arrive exactly on time as the host will have planned when they will serve the food. You will find that your host will serve their guests a pre-dinner drink, so that gives you a bit of wiggle room, but if you are running later than 10 minutes, you should ring your host and let them know how late you might be. That way they can decide whether to go ahead and serve the other guests. When you arrive you should offer the host and the other guests your apology for being late. 
7. What does the word “that way” in the last paragraph refer to?

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When it comes to cooking, boomers cook one, Generation X cooks another way and the beat generation does things that must be recorded now, because once they have passed out of fashion, they will never be discovered again. They have weird skills, derived from scarcity in their early years. They keep their spices in brown glass because they last longer. For practical purposes, this means everything is in an old Calpol bottle with “sumac” scrawled over it. Some of them are, and will fish an empty packet of sugar out of the bin, shake a quarter-teaspoon of sugar from it and put it back. They can often make a cake by eye, without weighing anything, which I find incredible, and they know what to do with leaf gelatine, which is great until it isn’t. My mother once made avocado in jelly and then said: “I don’t know, the proportions may have been slightly off.” I said, recklessly: “Don’t worry – I’m sure I’ll choke it down,” but when it came to it, my cutlery bounced off it, like a prank played on a very hungry person in a cartoon. The beat generation canon is Meat at Any Price and Fish at Any and anything to do with mince. The descent of mince from a sacred food to a bolognese-only staple is one of the great mysteries of progress, because it is delicious even when you don’t shove a load of tomato in it. But you can’t just shove cheap meat in a pan and watch while it sweats out watery grey juice. This seems to be something that only wartime generations understand. Hip parents in the 70s, or regular parents in the 80s, or quite trad parents in the 90s had a horror of overcooked carrots and waterlogged cabbage. The very smell of cooked vegetables evoked for them every bad memory of British cuisine, before anchovies and Italians and radicchio arrived, when all dinner was a school dinner. So they would all just tease their vegetables with a hint of boiling water, before turning them out, still basically a salad, only a bit warmer. Then you, their offspring, would leave home, and accidentally encounter a vegetable that had been cooked, and realise how delicious it was and now you probably overcook your vegetables a bit, and your children will go the other way.  
8. Which of the following can be inferred from the passage?

Read the following passage and choose the best answer (A, B, C, D):
Common methods of deforestation are burning trees and clear cutting. These tactics leave the land completely barren and are controversial practices. Clear cutting is when large swaths of land are cut (1) ______ all at once. A forestry expert quoted by the Natural Resources Defense Council describes clear cutting as “an ecological trauma that has no precedent in nature (2) _____ for a major volcanic eruption.” Burning can be done quickly, in vast swaths of land, or more slowly with the slash-andburn technique. Slash-and-burn agriculture entails cutting down a patch of trees, (3) __________ them and growing crops on the land. The ash from the (4) _____ trees provides some nourishment for the (5) ______ and the land is weed-free from the burning. When the soil becomes less nourishing and weeds begin to reappear over years of use, the farmers move on to a new patch of land and begin the process again

Read the following passage and choose the best answer (A, B, C, D):
Electronic devices are becoming increasingly common in educational environments. The term most commonly used for such devices is “educational technology”. This is not actually a new idea, as the rewritable wax tablets, often with lined surfaces to guide novice writers used in antiquity or the blackboard itself are both instances of technological innovations to support pedagogy. There are many different ways in which electronic devices are used in education. For example, students in STEM (science, technology, engineering medicine) fields have been making extensive use of sophisticated calculators for many years (the abacus and slide rule were non-electronic predecessors to calculators). In humanities as well as sciences, students use computers or equivalent devices to do research and write papers. In all fields, courses are now likely to have websites, and many instructors use course management software such as Blackboard, to post information for students, record grades, set up online discussions, and check for plagiarism. In lecture classes, many instructors project slides or notes on a screen and may even upload lecture notes so that students can review them. Some courses are hybrid, meaning that they have a strong online component, or offered entirely online. Many courses taught in conventional lecture halls are streamed online, and may use devices such as clickers to become more interactive. Any device (including tablets or cell phones) that instructors incorporate into a learning environment functions as educational technology.  
5. According to the passage, which of the following does NOT function as educational technology?

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Scuba diving is a sport in (1)__________ you swim underwater for extended (2)_______ using special equipment. The word Scuba is actually an acronym for selfcontained underwater breathing apparatus. Scuba diving is an excellent way to see some very beautiful sites: coral diving sites with their colorful sea life are the most famous but other scuba diving (3)________include shipwrecks and caverns. Scuba diving can also be a very relaxing sport and in many places it’s very beginner friendly. Many dive sites are (4)_________ (under the care of an instructor) after a short briefing and training dive. You can learn to dive far more quickly than you can learn snow sports, for example. It’s also suitable for people with a number of physical disabilities. (5)___________ you can use the breathing equipment and are able to successfully propel yourself underwater you may be able to dive

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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 __________________

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:
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.

People need to communicate in order to     .