Read the following passage and choose the best answer (A, B, C, D):
People commonly complain that they never have enough time to accomplish tasks. The hours and minutes seem to slip away before many planned chores get done. According to time management experts, the main reason for this is that most people fail to set priorities about what to do first. They get tied down by trivial, time-consuming matters and never complete the important ones. One simple solution often used by those at the top is to keep lists of tasks to be accomplished daily. These lists order jobs from most essential to least essential and are checked regularly through the day to access progress. Not only is this an effective Way to manage time, but also it serves to give individuals a much- deserved sense of satisfaction over their achievements. People who do not keep lists often face the end of the work day with uncertainty over the significance of their accomplishments, which over time can contribute to serious problems in mental and physical health  .
3. In paragraph 2, the word those refers to;

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

   A rather surprising geographical feature of Antarctica is that a huge freshwater, one of the world’s largest and deepest, lies hidden there under four kilometers of ice. Now known as Lake Vostok, this huge body of water is located under the ice block that comprises Antarctica. The lake is able to exist in its unfrozen state beneath this block of ice because its waters are warned by geothermal heat from the earth’s core. This thick glacier above Lake Vostok actually insulates it from frigid temperatures (the lowest ever recorded on Earth) on the surface.

   The lake was first discovered in the 1970s while a research team was conducting an aerial survey of the area. Radio waves from the survey equipment penetrated the ice and revealed a body of water of indeterminate size. It was not until much more recently that data collected by satellite made scientists aware of the tremendous size of the lake; satellite-borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.

   The discovery of such a huge fresh water lake trapped under Antarctica is of interest to the scientific community because of the potential that the lake contains ancient microbes that have survived for thousands upon thousands of years, unaffected by factors such as nuclear fallout and elevated ultraviolet light that have conducting research on the lake in such a harsh climate and in the problems associated with obtaining uncontaminated sampled from the lake without actually exposing the lake to contamination. Scientists are looking for possible ways to accomplish this.

Which of the following is closest in meaning to “frigid” in the first paragraph?

Read the following passage and choose the best answer (A, B, C, D):
The word "laser" was coined as an acronym for Light Amplifiation by the Stimulated Emission of Radiation. Ordinary light, from the Sun or a light bulb, is emitted spontaneously, when atoms or molecules get rid of excess energy by themselves, without any outside intervention. Stimulated emission is different because it occurs when an atom or molecule holding onto excess energy has been stimulated to emit it as light. Albert Einstein was the first to suggest the existence of stimulated emission in a paper published in 1917. However, for many years physicists thought that atoms and molecules always were much more likely to emit light spontaneously and that stimulated emission thus always would be much weaker. It was not until after the Second World War that physicists began trying to make stimulated emission dominate. They sought ways by which, one atom or molecule could stimulate many others to emit light, amplifying it to much higher powers. The first to succeed was Charles H. Townes, then at Colombia University in New York. Instead of working with light, however, he worked with microwaves, which have a much longer wavelength, and built a device he called a "maser", for Microwave Amplifiation by the Stimulated Emission of Radiation. Although he thought of the key idea in 1951, the first maser was not completed until a couple of years later. Before long, many other physicists were building masers and trying to discover how to produce stimulated emission even shorter wavelength. The key concepts emerged about 1957. Townes and Arthur Schawlow, then at Bell Telephone Laboratories, wrote it long paper outlining the conditions needed to amplify stimulated emission of visible light waves. At about the same time, similar ideas crystallized in the mind of Gordon Gould, then a 37-year-old graduate student at Columbia, who wrote them down in a series of notebooks. Townes and Schawlow published their ideas in a scientific journal, Physical Review Letters, but Gould filed a patent application. Three decades later, people still argue about who deserves the credit for the concept of the laser.
5: Why has Towne's early work with stimulated emission done with microwaves?

Read the passage and choose one correct answer for each question.

My name’s Mandi. Three months ago, I went to disco where I met a boy called Tom. I guessed he was older than me, but I liked him and thought it didn’t matter. We danced a couple of times, then we chatted. He said he was 18, then asked how old I was. I told him I was 16. I thought that if I told him my real age, he wouldn’t want to know me, as I’m only 13.

After the dicso we arranged to meet the following weekend. The next Saturday we went for a burger and had a real laugh. Afterwards he walked me to my street and kissed me goodnight. Things went really well. We see each other a couple of times a week, but I’ve had to lie to my parents about where I’m going and who with. I’ve always got on with them, but I know if they found out how Tom was they’d stop me seeing him.

Now I really don’t know what to do. I can’t go on lying to my parents every time I go out, and Ton keeps asking he can’t come around to my house. I’m really worried and I need some advice.

Why is Mandi worried?

Read the following passage and choose the best answer (A, B, C, D):
There are many theories about the beginning of drama in ancient Greece. The one most widely accepted today is based on the assumption that drama evolved from ritual. The argument for this view goes as follows. In the beginning, human beings viewed the natural forces of the world, even the seasonal changes, as unpredictable, and they sought, through various means, to control these unknown and feared powers. Those measures which appeared to bring the desired results were then retained and repeated until they hardened into fixed rituals. Eventually stories arose which explained or veiled the mysteries of the rites. As time passed some rituals were abandoned, but the stories, later called myths, persisted and provided material for art and drama. Those who believed that drama evolved out of ritual also argue that those rites contained the seed of theater because music, dance, masks, and costumes were almost always used. Furthermore, a suitable site hard to be provided for the performances, and when the entire community did not participate, a clear division was usually made between the “acting area” and the “auditorium”. In addition, there were performers, and since considerable importance was attached to avoiding mistakes in the enactment of rites, religious leaders usually assumed that task. Wearing masks and costumes, they often impersonated other people, animals, or supernatural beings, and mimed the desired effect- success in hunt or battle, the coming rain, the revival of the Sun as an actor might. Eventually such dramatic representations were separated from religious activities. Another theory traces the theater’s origin from the human interest in storytelling. According to this view, tales (about the hunt, war or other feats) are gradually elaborated, at first through the use of impersonation, action, and dialogue by a narrator and then through the assumption of each of the roles by a different person. A closely related theory traces theater to those dances that are primarily rhythmical and gymnastic or that are imitation of animal movements and sounds.
4: Which of the following is NOT mentioned as a common element of theater and ritual?

Read the following passage and choose the best answer (A, B, C, D):
According to anthropologists, people in preindustrial societies spent 3 to 4 hours per day or about 20 hours per week doing the work necessaryfor life. Modern comparisons of the amount of work performed per week, however, begin with the Industrial Revolution (1760-1840) when 10- to 12-hour workdays with six workdays per week were the norm. Even with extensive time devoted to work, however, both incomes and standards of living were low. As incomes rose near the end of the Industrial Revolution, it became increasingly common to treat Saturday afternoons as a half-day holiday. The half-day holiday had become standard practice in Britain by the 1870's, but did not become common in the United States until the 1920's. In the United States, the first third of the twentieth century saw the workweek move from 60 hours per week to just under 50 hours by the start of the 1930s. In 1914 Henry Ford reduced daily work hours at his automobile plants from 9 to 8. In 1926 he announced that henceforth his factories would close for the entire day on Saturday. At the time, Ford received criticism from other firms such as United States Steel and Westinghouse, but the idea was popular with workers. The Depression years of the 1930s brought with them the notion of job sharing to spread available work around; the workweek dropped to a modem low for the United States of 35 hours. In 1938 the Fair Labor Standards Act mandated a weekly maximum of 40 hours to begin in 1940, and since that time the 8-hour day, 5-day workweek has been the standard in the United States. Adjustments in various places, however, show that this standard is not immutable. In 1987, for example, German metal workers struck for and received a 37.5-hour workweek; and in 1990 many workers in Britain won a 37-hour week. Since 1989, the Japanese government has moved from a 6- to a 5-day workweek and has set a national target of 1,800 work hours per year for the average worker. The average amount of work per year in Japan in 1989 was 2,088 hours per worker, compared to 1,957 for the United States and 1,646 for France.
1. What does the passage mainly discuss?

Identify the one underlined word or phrase - A, B, C or D - that must be changed for the sentence to be correct.

It is educational for children   to observe  adults to perform their daily tasks.

Read the following passage and choose the best answer (A, B, C, D):
Simply being bilingual doesn’t qualify someone to interpret. Interpreting is not only a mechanical process of converting one sentence in language A into the same sentence in language B. Rather, its a complex art in which thoughts and idioms that have no obvious counterparts from tongue to tongue - or words that have several meanings must be quickly transformed in such a way that the message is clearly and accurately expressed to the listener. At one international conference, an American speaker said, “You can’t make a silk purse out of a sows ear”, which meant nothing to the Spanish audience. The interpretation was, “A monkey in a silk dress is still a monkey” - an idiom the Spanish understood and that expressed the same idea. There are 2 kinds of interpreters, simultaneous and consecutive. The former, sitting in a separated booth, usually at a large multilingual conference, speaks to listeners wearing headphones, interpreting what a foreign language speaker says - actually a sentence behind. Consecutive interpreters are the ones most international negotiations use. They are employed for smaller meetings without sound booths and headphones. Consecutive interpretation also requires two-person teams. A foreign speaker says his piece while the interpreter, using a special shorthand, takes notes and during a pause, tells the client what was said. 
5. The word “converting” in paragraph 1 is closest in meaning to: 

As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking.
Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can damage or destroy files. But how exactly can a hacker get into a system to do these things? 
Most hackers use information called protocols that are built into computer software. These protocols allow computer to interact with one another. Protocols are sort of like computer police officers. When a computer connects to another system, the protocols check to see if the access is valid. The protocols can also determine how much information can be shared between the two systems. Hackers can manipulate the protocols to get unlimited access to a computer system. 
In fact, just the act of entering a computer network is considered hacking. This is commonly called passive hacking. Passive hackers get a rush from just being able to access a challenging system like a bank of military network. Another kind of hacker tries to do damage to a system. After hacking into systems, these hacker release viruses or alter, delete, or take information. Known as active hackers, they are, by far, the more dangerous of the two. 
The easiest way to protect a system is with a good password. Long and unusual passwords are harder for hackers to guess. For even greater security, some online services use “password-plus” systems. In this case, users first put in a password and then put in a second code that changes after the user accesses the site. Users either have special cards or devices that show them the new code to use the next time. Even if a hacker steals the password, they won’t have the code. Or if the hacker somehow gets the code, they still don’t know the password.

What is the main idea of this passage?

Read the following passage and choose the best answer (A, B, C, D):
The modem comic strips started out as ammunition in a newspaper war between giants of the American press in the late nineteenth century. The fist full-color comic strip appeared in January 1894 in the New York World, owned by Joseph Pulitzer. The fist regular weekly full¬color comic supplement, similar to today's Sunday funnies, appeared two years later, in William Randolph Hearst's rival New York paper, the Morning Journal. Both were immensely popular and publishers realized that supplementing the news with comic relief boosted the sale of papers. The Morning Journal started another feature in 1896, the "Yellow Kid", the first continuous comic character in the United States, whose creator, Richard Outcault, had been lured away from the World by the ambitious Hearst. The "Yellow Kid" was in many ways a pioneer. Its comic dialogue was the strictly urban farce that came to characterize later strips, and it introduced the speech balloon inside the strip, usually placed above the characters' heads. The first strip to incorporate all the elements of later comics was Rudolph Dirks's "Katzenjammer Kids", based on Wilhelm Busch's Max and Moritz, a European satire of the nineteenth century. The "Kids" strip, fist published in 1897, served as the prototype for future American strips. It contained not only speech balloons, but a continuous cast of characters, and was divided into small regular panels that did away with the larger panoramic scenes of earlier comics. Newspaper syndication played a major role in spreading the popularity of comic strips throughout the country. Though weekly colored comics came first, daily black-and- white strips were not far behind. The first appeared in the Chicago American in 1904. It was followed by many imitators, and by 1915 black-and-white comic strips had become a staple of daily newspapers around the country.
1. In what order does the author discuss various comic strips in the passage?

Read the passage about tourism in Wales and circle the best option (A, B, C, or D) to fill in each numbered blank. An example has been done for you.

It is estimated that in north Wales 30 per cent of all jobs can be directly attributed to tourism, but the fact that visitors spend their money in a variety of ways has a beneficial effect (26)____________ other things too. Many village shops would have to close if they were not supported by income from tourists, and the money spent on local souvenirs can (27)____________ local industries from going out of business.
Unfortunately, tourism also has disadvantages. (28)____________, many of the roads in the Snowdonia area are extremely narrow and tourist cars cause traffic jams. Some farmers and local merchants complain that they make it difficult for them (29)____________ their work as car parks full up during busy periods and many visitors cause obstructions by parking across gateways, etc. In addition, in the summer, thousands of people use the network of footpaths across Snowdon and its foothills. Often the grassy surface is (30)____________, leaving rough stone or mud. This makes the paths hard to see, and it can be dangerous to walk on.

Question 28. ...................

Choose the correct answer to complete the  following passage.

"In a healthy relationship, both partners respect, trust and embrace (1) ____ differences. Both partners are able to communicate (2) ____ their needs and listen to their partner, and work to resolve conflict in a rational and (3) ____ way. But maintaining a healthy relationship (4) ____ for skills many young people are never taught. A lack of these skills, and (5) ____ up in a society that sometimes celebrates violence or in a community that experiences a high (6) ____ of violence, can lead to unhealthy and even violent relationships among youth.

Dating violence (7) ____ psychological or emotional violence, such as controlling behaviours or jealousy; physical violence, such as hitting or punching. More than 20 per cent of all adolescents report having experienced (8) ____ psychological or physical violence from an intimate partner - and underreporting remains a concern.

Adolescents, (9) ____ older adolescents, often have romantic relationships, which are long-term, serious, and intimate. Society has a responsibility to provide young people with the resources, skills, and space (10) ____ to safeguard their physical and emotional well being in these relationships. Youth-serving professionals, educators, and parents can help young people in need access services to (11) ____ dating abuse victimisation. Research also has shown that programmes intended to prevent dating violence can be (12) ____."

1. In a healthy relationship, both partners respect, trust and embrace (1) ____ differences.

Read the following passage and choose the best answer (A, B, C, D):
According to anthropologists, people in preindustrial societies spent 3 to 4 hours per day or about 20 hours per week doing the work necessaryfor life. Modern comparisons of the amount of work performed per week, however, begin with the Industrial Revolution (1760-1840) when 10- to 12-hour workdays with six workdays per week were the norm. Even with extensive time devoted to work, however, both incomes and standards of living were low. As incomes rose near the end of the Industrial Revolution, it became increasingly common to treat Saturday afternoons as a half-day holiday. The half-day holiday had become standard practice in Britain by the 1870's, but did not become common in the United States until the 1920's. In the United States, the first third of the twentieth century saw the workweek move from 60 hours per week to just under 50 hours by the start of the 1930s. In 1914 Henry Ford reduced daily work hours at his automobile plants from 9 to 8. In 1926 he announced that henceforth his factories would close for the entire day on Saturday. At the time, Ford received criticism from other firms such as United States Steel and Westinghouse, but the idea was popular with workers. The Depression years of the 1930s brought with them the notion of job sharing to spread available work around; the workweek dropped to a modem low for the United States of 35 hours. In 1938 the Fair Labor Standards Act mandated a weekly maximum of 40 hours to begin in 1940, and since that time the 8-hour day, 5-day workweek has been the standard in the United States. Adjustments in various places, however, show that this standard is not immutable. In 1987, for example, German metal workers struck for and received a 37.5-hour workweek; and in 1990 many workers in Britain won a 37-hour week. Since 1989, the Japanese government has moved from a 6- to a 5-day workweek and has set a national target of 1,800 work hours per year for the average worker. The average amount of work per year in Japan in 1989 was 2,088 hours per worker, compared to 1,957 for the United States and 1,646 for France.
3: The word "norm" in paragraph 1 is closest in meaning to: 

Read the following passage and choose the best answer (A, B, C, D):
Music can bring US to tears or to our feet, drive US into battle or lull US to sleep. Music is indeed remarkable in its power over all humankind, and perhaps for that every reason, no human culture on earth has ever lived without it. From discoveries made in France and Slovenia even Neanderthal man, as long as 53,000 years ago, had developed surprisingly sophisticated, sweet-sounding flutes carved from animal bones. It is perhaps then, no accident that music should strike such a chord with the limbic system - an ancient part of our brain, evolutionarily speaking, and one that we share with much of the animal kingdom. Some researchers even propose that music came into this world long before the human race ever did. For  example, the fact that whale and human music have so much in common even though our evolutionary paths have not interested for nearly 60 million years suggests that music may predate humans. They assert that rather than being the inventors of music, we are latecomers to the musical scene. Humpback whale composers employ many of the same tricks that human songwriters do. In addition to using similar rhythms, humpbacks keep musical phrases to a few seconds, creating themes out of several phrases before singing the next one. Whale songs in general are no longer than symphony movements, perhaps because they have a similar attention span. Even though they can sing over a range of seven octaves, the whales typically sing in key, spreading adjacent notes no farther apart than a scale. They mix percussive and pure tones in pretty much the same ratios as human composers - and follow their ABA form, in which a theme is presented, elaborated on and then revisited in a slightly modified form. Perhaps most amazingly, humpback whale songs include repeating refrains that rhyme. It has been suggested that whales might use rhymes for exactly the same reasons that we do: as devices to help them remember. Whale songs can also be rather catchy. When a few humpbacks from the Indian Ocean strayed into the Pacific, some of the whales they met there quickly changed their tunes - singing the new whales'songs within three short years. Some scientists are even tempted to speculate that a universal music awaits discovery.
7: The word "catchy" in paragraph 2 is closest in meaning to: 

The ideas of John Dewey, philosopher and educator, have influenced American thought for over one hundred years. Dewey was born in Vermont in 1859, and throughout hi life he kept the respect for experience, individuality, and fair play that shaped the character of the nineteenth century Vermonter. He viewed his own life as a continuously reconstructive process with experience and knowledge building on each other. By the 1930s, Dewey had simplified his theory of experience to its essence. As the intellectual leader of the progressive schools, he asserted that there was danger in rejecting the old unless the new was rooted in a connect idea of experience. He held that experience is an interaction between what a person already knows and the situation at hand. Previous knowledge interacting with the present environment influences future experience. Dewey be1ieved that experience could not be equated with education because all experiences as not necessarily educative. Experience is educative only when it contributes to the growth of the individual, but it can be miseducative if it distorts the growth of further experience. It is the quality of experience that matters. Thus, productive experience is both the means and the goal of education. Furthermore, since education is a social process, truly progressive education involves the participation of the learner in directing the learning experience.During his long life, Dewey lectured and published prolifically. These writings were influential both during his lifetime and after his death at the age of ninety-two. He viewed his whole life as an experiment which would produce knowledge that would lead to further experimentation. The range and diversity of Dewey’s writings and his influence on society place him among American’s great thinkers.

The word “distorts” in paragraph 3 refers to____.

Read the following passage carefully and choose the word that best fits each space.

Here are some suggestions for practical (9) _____. Use less fuel at home and at work. Persuade the government to pay for researchers into alternative (10) _____ resources like solar power. Recycle paper, glass, metal, plastic and batteries as (11) _____ as possible. Ask for bottle banks for glass recycling at local supermarkets. Walk, cycle or use public (12) _____ if possible, to cut down on car exhaust fumes, which contribute to the greenhouse effect. Launch campaign for public transport systems to be improved. Join one of the many pressure groups which work to protect wildlife and the countryside.

12.....................

Read the following passage and mark the letter A,B,C or D on your answer sheet to indicate the correct answer or phrase that best fits each of the numbered blanks from. 
Nowadays, teenagers have (18)______ more money and expensive possessions than their parents ever did. Articles like radios and bicycles, which cost a fortune (19) _____ decades ago, are now mass-produced and cheap. And items that nobody even dreamed of possessing twenty years ago, such as mobile phones and computers, are now in common places. Teenagers are definitely better off financially. However life is not easy for them. There is much more to worry about than there was in the past. Jobs are not as secure (20)_____ they used to be and teenagers can no (21) _____ be confident that the world will always be peaceful and free of pollution. 
Teenagers drive their parents crazy (22)_____ many ways. Some of them spray their hair with amazing color, while others wear clothes that shock their parents. They all want (23)_____ own stereos, mobile phones and televisions. But these young people are not really behaving differently from how their parents behaved when they were young. Many today’s parents and grandparents will laugh when they (24)_____ crazy fashions they wore. Those adults, (25) _____ are parents now fought with their own parents about clothes and lifestyle. In fact, teenagers have fought with their parents (26)_____ time began and no doubt they will always.
(20).....................................

Read the following passage and choose the best answer (A, B, C, D):
Music can bring US to tears or to our feet, drive US into battle or lull US to sleep. Music is indeed remarkable in its power over all humankind, and perhaps for that every reason, no human culture on earth has ever lived without it. From discoveries made in France and Slovenia even Neanderthal man, as long as 53,000 years ago, had developed surprisingly sophisticated, sweet-sounding flutes carved from animal bones. It is perhaps then, no accident that music should strike such a chord with the limbic system - an ancient part of our brain, evolutionarily speaking, and one that we share with much of the animal kingdom. Some researchers even propose that music came into this world long before the human race ever did. For  example, the fact that whale and human music have so much in common even though our evolutionary paths have not interested for nearly 60 million years suggests that music may predate humans. They assert that rather than being the inventors of music, we are latecomers to the musical scene. Humpback whale composers employ many of the same tricks that human songwriters do. In addition to using similar rhythms, humpbacks keep musical phrases to a few seconds, creating themes out of several phrases before singing the next one. Whale songs in general are no longer than symphony movements, perhaps because they have a similar attention span. Even though they can sing over a range of seven octaves, the whales typically sing in key, spreading adjacent notes no farther apart than a scale. They mix percussive and pure tones in pretty much the same ratios as human composers - and follow their ABA form, in which a theme is presented, elaborated on and then revisited in a slightly modified form. Perhaps most amazingly, humpback whale songs include repeating refrains that rhyme. It has been suggested that whales might use rhymes for exactly the same reasons that we do: as devices to help them remember. Whale songs can also be rather catchy. When a few humpbacks from the Indian Ocean strayed into the Pacific, some of the whales they met there quickly changed their tunes - singing the new whales'songs within three short years. Some scientists are even tempted to speculate that a universal music awaits discovery.
3: The word "one" in paragraph 1 can be replaced by: 

Read the following passage and choose the best answer (A, B, C, D):
Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced in chemicals combining in such a way that little or no measurable heat is produced, and the life forms generating it are unharmed. Although bioluminescence is a relatively complicated process, it can be reduced to simple terms. Living light occurs when luciferin and oxygen combine in the presence of luciferase. In a few cases, fireflies the most common, an additional compound called ATP is required. The earliest recorded experiments with bioluminescence in the late 1800s are attributed to Raphael Dubois, who extracted a luminous fluid from a clam, observing that it continued to glow in the test tube for several minutes. He named the substance luciferin, which means “the bearer of life”. In further research, Dubois discovered that several chemicals were required for bioluminescence to occur. In his notes, it was recorded that a second important substance, which he called luciferase, was always present. In later study of small, luminous sea creatures, Newton Harley concluded that luciferin was composed of carbon, hydrogen, and oxygen, which are the building blocks of all living cells. He also proved that there are a variety of luciferin and luciferase, specific to the plants and animals that produce them. Much remains unknown, but many scientists who are studying bioluminescence now believe that the origin of the phenomenon may be traced to a time when there was no oxygen in the Earth’s atmosphere. When oxygen was gradually introduced to the atmosphere, it was actually poisonous to life forms, plants and animals produced light to use up the oxygen in a gradual but necessary adaptation. It is speculated that millions of years ago, all life may have produced light to survive. As the millennia passed, life forms on Earth became tolerant of, and finally dependent on oxygen, and the adaptation that produced bioluminescence was no longer necessary, but some primitive plants and animals continued to use the light for new functions such as mating or attracting prey.
1. Which of the following is the main topic of the passage?

Read the following passage and choose the best answer (A, B, C, D):
Butterflies are among the most extensively studied insects, an estimated 90 percent of the world's species have their scientific names. As a consequence, they are, perhaps, the best group of insects for examining patterns of terrestrial biotic diversity and distribution. Butterflies also have a favorable image with the general public. Hence, they are an excellent group for communicating information on science and conservation issues such as diversity. Perhaps the aspect of butterflies diversity that has received the most attention over the past century is the striking difference in species richness between tropical and temperate regions. For example, in 1875 one biologist pointed out the diversity of butterflies in the Amazon when he mentioned that about 700 species were found within an hour's walk, whereas the total number found on the British islands did not exceed 66, and the whole of Europe supported only 321. This early comparison of tropical and temperate butterflies' richness has been well confirmed. A general theory of diversity would have to predict not only this difference between temperate and tropical zones, but also patterns within each region, and how these patterns vary among different animal and plant groups. However, for butterflies, variation of species richness within temperate or tropical regions, rather than between them, is poorly understood. Indeed, comparisons of numbers of species among the Amazon basin, tropical Asia, and Africa are still mostly "personal communication" citations, even for vertebrates. In other words, unlike comparison between temperate and tropical areas, these patterns are still in the documentation phase. In documenting geographical variation in butterflies' diversity, some arbitrary, practical decisions are made. Diversity, number of species, and species richness are used synonymously; little is known about the evenness of butterfìy distribution. The New World butterflies make up the preponderance of examples because they are the most familiar species. It is hoped that by focusing on them, the errors generated by imperfect and incomplete taxonomy will be minimized
6. All of the followings are mentioned as being important parts of a general theory of diversity EXCEPT : 

Read the following passage and choose the best answer (A, B, C, D):
If any of the inmates at Yancheng prison are considering an escape attempt, they’d better do it soon. The Chinese prison is currently wrapping up months of construction on a new “smart” surveillance system designed to monitor prisoners at every moment, including while they are in their cells. According an official, this will make prison breaks virtually impossible — but it might also wreak havoc on prisoners’ psyches. According to the South China Morning Post, the facility is almost finished installing a network of cameras and sensors capable of constantly tracking inmates. These cameras and sensors will feed into an AI system that uses facial identification and movement analysis technologies to monitor each individual inmate at the Chinese prison, producing a daily report about each one and flagging any unusual behavior. “For instance,” project representative Meng Qingbiao told SCMP, “if an inmate has been spotted pacing up and down in a room for some time, the machine may regard the phenomenon as suspicious and suggest close-up checks with a human guard.” This isn’t the first example we’ve seen of prison officials attempting to make facilities “smart”. In February, Hong Kong’s Correctional Services Department announced the implementation of several technologies designed to help prisoners stay safe during their imprisonment. However, Zhang Xuemin, a physiology professor at Beijing Normal University, told SCMP the new system will “definitely affect” the prisoners’ mental state. And while he didn’t elaborate on what that effect might be, past research has shown that constant surveillance can increase a person’s stress and anxiety levels, while decreasing their trust in others — meaning the trade off for an escape-proof “smart” prison might be the mental health of its inmates.
 2. According to the passage, past reasearch revealed that constant surveillance can affect all of the following EXCEPT .