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In the polluted environment, infectious diseases can be passed easily from one person to another.

 

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With as few as 5,000 tigers remaining in the world today, time is running quick out for this power animal

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The host nation was Uruguay and it __________ Argentina in the final.

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People have been donating blood since the early twentieth century to help accident victims and patients undergoing surgical (1)_____. Usually a pint of whole blood is donated, and it is then divided into platelets, white blood cells, and red blood cells. People can donate blood (for red blood cells) about once every two months. (2) ____ the blood from the donor to the recipient is straightforward. It involves (3) _____ the blood from a donor’s arm vein by means of a hypodermic syringe. The blood flows through a plastic tube to a collection bag or bottle (4)_______ contains sodium citrate, which prevents the blood from clotting. When the blood is given to a patient, a plastic tube and hypodermic needle are connected to the recipient’s arm. The blood flows down from the container by gravity. This is a slow process and may last as long as 2 hours to complete the infusion of blood into the recipient. The patient is protected (5)______ being infected during the transfusion. Only sterile containers, tubing, and needles are used, and this helps ensure that transfused or stored blood is not exposed to disease causing bacteria

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We’re not surprised if you haven’t been following the recent developments in AI all  that closely because, for the most part, it’s seemed like nothing exciting has happened for quite a long time. Sci-fi dreams about computer powered best friends aside, AI for the general public has come to mean reasonably responsive and well-programmed computer assistance rather than independent thinking machines. Concepts like ‘smart’ chatbots somehow seem to pull us further from the Star Trek or Heinlinian dream of fully sentient and intuitive computers while many products and services that claim to integrate AI seem to be nothing more than a fast way to analyze large amounts of data.  In fact, the last time most of us heard something hopeful about AI was when Deep Blue beat the world Chess champion, but what ever came of that AI? Surely it hasn’t used that incredible logical power to take over the world or begin making friends, so what do we even care?  While practical applications for specifically built AI are growing, the tradition of training your AI programming skills on classic strategy games has existed since the 1950s when a computer was programmed to play and was able to win a game of tic-tac-toe. Since then a large variety of games and custom-built AIs have been tested against each other to the great entertainment of experts in the field and curious nerds like us who care about that sort of thing. The real difference is not what they’re programmed for but how they are programmed to start with and, in fact, this is also what most profoundly distinguishes AlphaGo from its older-generation relative, the Chess champion DeepBlue. 
4. The word “it” in paragraph 2 refers to _______

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After two decades of growing student enrollments and economic prosperity, business schools in the United States have started to face harder times. Only Harvard's MBA School has shown a substantial increase in enrollment in recent years. Both Princeton and Stanford have seen decreases in their enrollments. Since 1990, the number of people receiving Masters in Business Administration (MBA) degrees, has dropped about 3 percent to 75,000, and the trend of lower enrollment rates is expected to continue.
There are two factors causing this decrease in students seeking an MBA degree. The first one is that many graduates of four-year colleges are finding that an MBA degree does not guarantee a plush job on Wall Street, or in other financial districts of major American cities. Many of the entry-level management jobs are going to students graduating with Master of Arts degrees in English and the humanities as well as those holding MBA degrees. Students have asked the question, "Is an MBA degree really what I need to be best prepared for getting a good job?" The second major factor has been the cutting of American payrolls and the lower number of entry-level jobs being offered. Business needs are changing, and MBA schools are struggling to meet the new demands.

According to the passage, what are two causes of declining business school enrollments?

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Affecting by the Western cultures, Vietnamese young people’s attitudes towards love and marriage hava dramatically changed

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The ____________ will announce tomorrow’s weather on TV at 7:30 tonight.

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Without regular supplies of some hormones our capacity to behave would be seriously impaired; without others we would soon die. Tiny amounts of some hormones can modify our moods and our action, our inclination to eat or drink, our aggressiveness or submissiveness, and our reproductive and parental behavior. And hormones do more than influence adult behavior; early in life they help to determine the development of bodily form and may even determine an individual’s behavioral capacities. Later in life the changing outputs of some endocrine glands and the body’s changing sensitivity to some hormones are essential aspects of the phenomena of aging. Communication within the body and the consequent integration of behavior were considered the exclusive province of the nervous system up to the beginning of the present century. The emergence of endocrinology as a separate discipline can probably be traced to the experiments of Bayliss and Starling on the hormone secretion. This substance is secreted from cells in the intestinal walls when food enters the stomach; it travels through the bloodstream and stimulates the pancreas to liberate pancreatic juice, which aids in digestion. By showing that special cells secrete chemical agents that are conveyed by the bloodstream and regulate distant target organs or tissues, Bayliss and Starling demonstrated that chemical integration can occur without participation of the nervous system. William Bayliss and Ernest Henry Starling, two British physiologists, discovered and introduced the word hormone. In 1979, The Bayliss and Starling Society was founded as a forum for research scientists with specific interest in the chemistry, physiology and function of central and autonomic peptides. The Society also offered the travelling fellowship award for members who wanted to attend national and international academic conferences. Sometimes, the Society help schools to organize science fairs for secondary students and give them incentives to fall for related subjects. The term “hormone” was first used with reference to secretion. Starling derived the term from the Greek hormone, meaning “to excited or set in motion.” The term “endocrine” was introduced shortly thereafter, “Endocrine” is used to refer to glands that secrete products into the bloodstream. The term “endocrine” contrasts with “exocrine” which is applied to glands that secrete their products through ducts to the site of action. Examples of exocrine glands are the tear glands, the sweat glands, and the pancreas, which secretes pancreatic juice through a duct into intestine. Exocrine glands are also called duct glands, while endocrine glands are called ductless.
4. It can be inferred from the passage that, before the Bayliss and Starling experiments, most people believed that chemical integration occurred only ________ .

Choose the answer A, B, c or D to fill the blank space in the following passage.

"Speech is one of the most important ways of communicating. It consists of far more than just (1)….. noises. To talk or to (2)…. by other people, we have to master a language, that is, we have to use combinations of sound that (3)….. for a particular object or idea. Communication (4)…. impossible if everyone (5)….. up their own language.
Learning a language is very important. The basic vocabulary of English is not very large, and only about 2,000 words are needed to speak (6)…. quite well. But the more words you know, the more ideas you can express, and the more precise you can be (7)…. their meaning. Words are the main things we use (8)…. what we want to say. The way we say the words (9)…. also very important. One tone of voice can express (10)…. emotions and show whether we are pleased or angry for instance."

1. Speech is one of the most important ways of communicating. It consists of far more than just (1)….. noises.

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U.S. population could increase from 323 million in 2016 to as high as 447 million by 2060—or fall as low as 320 million. It depends on how many immigrants are admitted over the next four decades, according to new report from the Census Bureau. According to the report, if current levels of immigration are maintained, the U.S. population will grow to 404 million by 2060. If immigration is cut in half, the population will rise to 376 million. If immigration increases by 50 percent, the population expands to 447 million. And if all immigration were to be halted now, the U.S. population would peak at around 332 million in 2035 and drop to 320 million in 2060. In the high-immigration scenario, the proportion of foreign-born residents would rise by 2060 to 21.6 percent of the population. If immigration is halted, the forecast shows only 4.6 percent of the population in 2060 being foreign-born. In all of the scenarios, the median age of the U.S. population rises from 37.9 to more than 40. The report projects that the number of people identifying as “white alone”—that is, respondents who check only the white ethnicity box on census forms—will continue to rise in the main, high, and low immigration scenarios. This increase results from the Census Bureau’s expectation that the children of Hispanic immigrants will probably, like the children of Italian, Polish, Greek, and other earlier immigrant groups, choose to identify increasingly as white. But the share of the population in the white alone category will decline in each scenario, due to faster increases in the numbers of Americans in the other racial and ethnic groups. America is an ideal, not a tribe  
4. The word “median” in paragraph 2 is closest in meaning to ______

Rewrite the sentence:
I said that she should see a doctor.

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The town of Chichen-Itza was established during the Classic period close to two natural cavities (cenotes or chenes), which gave the town its name “At the edge of the well of the Itzaes”. The cenotes facilitated tapping the underground waters of the area. The dates for this settlement vary according to subsequent local accounts: one manuscript gives 415-35 A.D., while others mention 455 A.D. The town that grew up around the sector known as Chichen Viejo already boasted important monuments of great interest: the Nunnery, the Church, Akab Dzib, Chichan Chob, the Temple of the Panels and the Temple of the Deer. They were constructed between the 6th and the 10th centuries in the characteristic Maya style then popular both in the northern and southern areas of the Puuc hills. The second settlement of Chichen-Itza, and the most important for historians, corresponded to the migration of Toltec warriors from the Mexican plateau towards the south during the 10th century. According to the most common version, the King of Tula, Ce Acatl Topiltzin Quetzalcoatl, or Kukulkan as the Maya translated the name, reportedly took the city between 967 A.D. and 987 A.D. Following the conquest of Yucatán a new style blending the Maya and Toltec traditions developed, symbolizing the phenomenon of acculturation. Chichen-Itza is a clear illustration of this fusion. Specific examples are, in the group of buildings to the south, the Caracol, a circular stellar observatory whose spiral staircase accounts for its name, and, to the north, El Castillo. Surrounding El Castillo are terraces where the major monumental complexes were built: on the north-west are the Great Ball Court, Tzompantli or the Skull Wall, the temple known as the Jaguar Temple, and the House of Eagles; on the north-east are the Temple of the Warriors, the Group of the Thousand Columns, the Market and the Great Ball Court; on the south-west is the Tomb of the High Priest. After the 13th century no major monuments seem to have been constructed at Chichen-Itza and the city rapidly declined after around 1440 A.D. From its abandonment during the 15th century, Chichen-Itza underwent a process of gradual deterioration until the first excavations at the site began more than a century ago. Nevertheless, the excellent materials and building techniques used by the Maya in the construction of the buildings secured that the architectonic, sculptural and pictorial essence of Chichen-Itza would be conserved through the centuries  
7. The word “deterioration” in paragraph 4 is closest in meaning to _______

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Trees are useful to man in three very important ways: they provide him with wood and other products; they give him shade; and they help to prevent droughts and floods.  Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important. In his eagerness to draw quick profit from the trees, he has cut them down in large numbers.  Two thousand years ago, a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. It gained the empire but, without its trees, its soil became bare and poor. When the empire fell to pieces, the country found itself faced by floods and starvation.  Even though government realizes the importance of a plentiful supply of trees, it is difficult sometimes to make the people realize this. They cut down the trees but are too careless to plant and look after new trees. So, unless the government has a good system of control, or can educate the people, the forests will slowly disappear.  This does not only mean that there will be fewer trees. The results are even more serious: for where there are trees, their roots break the soil up, allowing the rain to sink in, and also bind the soil. This prevents the soil from being washed away. But where there are no trees, the rain falls on hard ground and flows away on the surface, and this causes floods and the rain carries away the rich topsoil in which crops grow. When all the topsoil is gone, nothing remains but worthless desert.
5. Which title best fits the passage?

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My mom is a pretty talented pianist. She reads music very well and loves to play  Chopin and various other classical artists. One of my earliest memories involves sitting under her piano bench while she played. It gave her a lot of joy and a lot of personal pride, I think. I trust that she naturally wanted those things for me when she enrolled me in piano lessons when I was about seven years old.  I hated them. I was scared of my teacher. I hated practicing. I hated the songs I was being forced to learn. I hated reading music. I was a young kid, and there were other things I wanted to do instead. It just didn’t interest me, and no amount of begging and pleading on my mother’s part could get me to enjoy practicing. One thing in particular that she used to say as she was begging me to practice was, “One day, when you’re older, you will cherish the ability to sit down and play.” Nevertheless, after a couple years of once-a-week torture, she finally allowed me to quit.  Years went by. I switched schools when I was 11 years old, got a new best friend, and got interested in music. This was a critical turning point. My best friend loved the band Bush and lots of other alternative bands of the ‘90s, and listening to them unlocked a whole new sonic world for me. I fell in love, fell completely and totally in love, with rock music.  My friend taught me the form for a power chord on her acoustic guitar. If you know how to play a power chord, you can play or at least convincingly fake pretty much every single rock song in the world. It was like someone had given me my first hit of a powerful opiate.  I spent hours practicing in my room. Hours sounding out my favourite songs. More hours playing along with those songs in front of my mirror, pretending I was Scott Weiland, Dolores O’Riordan, Chris Cornell, or my personal favourite Louise Post (of Veruca Salt). I unlocked a talent within myself that had gone obscenely undiscovered and undeveloped when I was a young child banging my head against a piano keyboard, trying and failing to read a piece of music - I could play the guitar by ear. I just hadn’t had the time to figure that out because my mom was trying so hard to get me to do something that did not come naturally to me and that I had no desire to do.
4. Whose music did the write probably prefer listening to?

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A new report by the Pew Research Center has provided more documentation on the growing popularity of audiobooks. In a survey of 1,502 American adults conducted from January 8 to February 7 this year, Pew found that 20% of adults listened to an audiobook in the 12 months prior to the period in which the survey was conducted. In 2011, only 11% of them said they listened to an audiobook. The strongest gains have come since 2016—the dawning of the digital audiobooks age. The percentage of adults listening to audiobooks rose six percentage points between 2016 and the 2019 survey, after rising only three percentage points between 2011 and 2016. According to Pew, since 2018, college students and adults with household incomes over $75,000 are the two groups who have adopted listening to audiobooks the quickest. The Pew survey also found that while listening to audiobooks has risen steadily since the 2016 survey, reading e-books had declined. Twenty-eight percent of adults reported reading an e-book in 2016—double the number who listen to audiobooks that year. By the most recent survey, ebooks had only a 5% edge over audiobook usage. Overall, the Pew survey found a gradual reduction in the percentage of Americans who are reading. In 2011, 79% of those surveyed said they had read a book in the previous 12 months, a number that fell to 72% in early 2019. Print remained by far the book format of choice, with 65% or adults surveyed reporting that had read a print book within the last year, down from 71% in 2011. The percentage of adult who read a book in any format fell from 79% in 2011 to 72% in 2019.  
3. According to paragraph 2, what information is NOT correct about the ebook and audiobook figures?

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IN ONE CUBIC FOOT In any environment - forest, mountain or water - you always see big animals first: birds, mammals, fish. But under your feet, on land or in water there are many smaller organisms: insects, tiny plants, miniature sea creatures. They seem unimportant, but, in fact, these sea creatures and ground dwellers are “the heart of life on the Earth”, say naturalist E.O Wilson. Without them, our world would change dramatically. Most organisms on the Earth live on the ground or just below it. Here, they are part of an important cycle. Plants and animals fall to the ground when they die. Later, tiny insects and other organisms break down the dead plant and animal material. This process eventually returns nutrients to the soil and give plants energy. Plants can then help to maintain healthy environment for humans and other animals. Despite their importance, scientists know very little about most ground organisms. To learn more, photographer David Liittschwager went to different places around the world, including a forest, a river, a mountain, and a coral reef. In each place, he put a green 12-inch cube on the ground or in the water. Then he and his team counted and photographed the organisms that lived in or moved through the cube. Often they discovered hundreds, some only a millimeter in size. “It was like finding little germs”, he says. In the coral reef in French Polynesia, he saw thousands of creatures in the cube and photographed 600. The team identified as many as possible, but it was difficult. Many of the animals they found were new species.  
4. Liittschwager and his team use the cube to __________

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Scientists have uncovered a new threat to the world’s endangered coral reefs. They  have found that most are incapable of growing quickly enough to compensate for rising sea levels triggered by global warming. The study suggests that reefs – which are already suffering serious degradation because the world’s seas are warming and becoming more acidic – could also become overwhelmed by rising oceans.  The research – led by scientists at Exeter University and published in Nature this week – involved studying growth rates for more than 200 tropical western Atlantic and Indian Ocean reefs. It was found only 9% of these reefs had the ability to keep up with even the most optimistic rates of sea-level rises forecast by the Intergovernmental Panel on Climate Change. “For many reefs across the Caribbean and Indian Ocean regions, where the study focused, rates of growth are slowing due to coral reef degradation,” said Professor Chris Perry, of Exeter University. “Meanwhile, rates of sea-level rise are increasing – and our results suggest reefs will be unable to keep up. As a result, water depths above most reefs will increase rapidly through this century.”  Sea levels rose by several inches over the past century and measurements indicate the speed of this increase is now rising significantly. Two key factors are involved: climate change is making ocean water warmer and so it expands. And as ice sheets and glaciers melt, they increase amounts of water in the oceans.  At the same time, reefs are being weakened by ocean warming and also by ocean acidification, triggered as the seas absorb more and more carbon dioxide. These effects lead to bleaching events that kill off vast stretches of coral and limits their ability to grow.  “Our predictions, even under the best case scenarios, suggest that by 2100, the inundation of reefs will expose coastal communities to significant threats of shoreline change,” said co-author Prof Peter Mumby of Queensland University. This point was backed by US marine scientist Ilsa Kuffner writing in a separate comment piece for Nature. “The implications of the study are dire. Many island nations and territories are set to quickly lose crucial natural resources.” 
7. The author implies in the last paragraph that _____________

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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.
7. Coastal regions are mentioned in the last paragraph as an example of regions that ________

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

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Orbis is an organization which helps blind people of everywhere. It has built an eye  hospital inside an airplane and (1)___________ it all over the world with an international medical team. Samantha Graham, a fourteen-year-old schoolgirl from England, went with the plane to Mongolia. Samantha tells the story of the Eukhtuul, a young Mongolian girl.  ‘Last year, when Eukhtuul was walking home from school, she was attacked by boys with sticks and her eyes were (2) _________ damaged. Dr. Duffey, an Orbis doctor, said that without an operation she would never see again. I thought about all the things I (3)________ that she couldn’t, things like reading schoolbooks, watching television, seeing friends, and I realized how lucky I am.’  ‘The Orbis team agreed to operate (4) ________ Eukhtuul and I was allowed to watch, together with some Mongolian medical students. I prayed the operation would be successful. The next day I waited nervously with Eukhtuul while Dr. Duffey removed her bandages. “In six months your sight will be back to (5)__________,” he said. Eukhtuul smiled, her mother cried, and I had to wipe away some tears, too!’  Now Eukhtuul wants to study hard to become a doctor. Her whole future has changed thanks to a simple operation. We should all think more about how much our sight means to us