_______, he will go out with his friends.

     (148)_________

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
                          VIRTUAL DOCTORS
 Clare Harrison rarely falls ill and hates going to the doctor’s when she does. So when she recently(1)........... out in a painful rash down one side of her body she emailed her symptoms, (2)..................  also  included a (3)...................... fever, to e–doc, the internet medical service. Two hours later she was diagnosed as having shingles (Herpes Zoster) by her online doctor, who prescribed a special cleansing solution for the rash and analgesics to help relieve the pain.
Health advice is now the second most popular topic that people search for on the internet, and online medical consultation is big business. Sites vary enormously in what they offer, with services ranging from the equivalent of a medical agony aunt to a live chat with a doctor via email. They are clearly (4)....................... a demand from people who are too busy or, in some cases, too embarrassed to discuss their medical (5)..................... with their GP.

(2).........................

Read the passage below carefully, and then choose the best answer:
The Magical Mind of Leonardo Da Vinci
When someone shows great skills in a certain field, we call them a genius. In particular, the term is most associated with two people. One is the famed scientist Albert Einstein, and the other is Leonardo Da Vinci. However, unlike Einstein, whose achievements were essentially all related to science, Leonardo Da Vinci was a master at art, architecture, invention, and several other areas. Da Vinci was bom in Italy in 1452. He took to art at an early age and at age 14, he went to study as an apprentice in Florence under the artist Verrocchio. For the next six years. Da Vinci picked up drawing, carpentry, sculpting, and many other techniques from his master and his talent was evident. In fact, Da Vinci was such a good painter that his talent frustrated his master. Eventually, Verrocchio was so frustrated by his student’s genius that he stopped painting altogether. By the age of 20, Da Vinci was considered a master artist and set up his own workshop. It was there that Da Vinci was approached to create a painting for the Duke of Milan. The Duke was so impressed by his work that he would bring him under his service. In addition to creating paintings and sculptures, the Duke also had him design innovative buildings, machines, and weapons. Da Vinci would draw up plans for several futuristic inventions including tanks, submarines, and flying machines. He also mastered the art of drawing every muscle and detail of the human body. The only criticism one could make of Da Vinci is that his brilliant mind jumped so quickly from subject to subject that he rarely completed the works he started. The ones he did finish were often spectacular masterpieces, such as his paintings The Last Supper and the timeless Mona Lisa. The latter, which is on display at the Louvre in Paris, is arguably the most famous painting of all times because of its incredible detail and realism. Although Da Vinci died in 1519, his effect on the art world has never waned. He helped coin the term “Renaissance man” which refers to someone who excels in many different areas. Perhaps the greatest present Da Vinci left behind was his journals. Admirers and students of his work can examine 13,000 pages of his notes, drawings, and ideas to better understand what made this genius tick.
5. What could replace the word “waned” in paragraph 3?

Choose the best answer:
In spite _______, the baseball game was not cancelled.

Choose the best answer:
My teacher asked me if I knew _______ had got that job.

Read the following passage and choose the best answer (A, B, C, D):
Of all modern instruments, the violin is apparently one of the simplest. It consists in essence of a hollow, varnished wooden sound box, or resonator, and a long neck covered with a figerboard, along which four strings are stretched at high tension. The beauty of design, shape, and decoration is no accident: the proportions of the instrument are determined almost entirely by acoustical considerations. Its simplicity of appearance is deceptive. About 70 parts are involved in the construction of a violin. Its tone and its outstanding range of expressiveness make it an ideal solo instrument. No less important, however, is its role as an orchestral and chamber instrument. In combination with the larger and deeper- sounding members of the same family, the violins form the nucleus of the modern symphony orchestra. The violin has been in existence since about 1550. Its importance as an instrument in its own right dates from the early 1600s, when it fist became standard in Italian opera orchestras. Its stature as an orchestral instrument was raised further when in 1626 Louis XIII of France established at his court the orchestra known as Les vinq-quatre violons du Roy (The King's 24 Violins), which was to become widely famous later in the century. In its early history, the violin had a dull and rather quiet tone resulting from the fact that the strings were thick and were attached to the body of the instrument very loosely. During the eighteenth and nineteenth century, exciting technical changes were inspired by such composer-violinists as Vivaldi and Tartini. Their instrumental compositions demanded a fuller, clearer, and more brilliant tone that was produced by using thinner strings and a far higher string tension. Small changes had to be made to the violin's internal structure and to the figerboard so that they could withstand the extra strain. Accordingly, a higher standard of performance was achieved, in terms of both facility and interpretation. Left-hand technique was considerably elaborated, and new tigering patterns on the figerboard were developed for very high notes.
6. The word "strain" in paragraph 4 is closest in meaning to

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
The reality of an interview is never as bad as your fears. For some reason people imagine the interviewer is going to jump on every tiny mistake they (1)________. In truth, the interviewer is as keen for the meeting to go well as you are. It is what makes his or her job enjoyable. The secret of a good interview is preparing for it. What you wear is always important as it creates the first impression. So (2)________ neatly, but comfortably. Make sure that you can deal with anything you are asked. Prepare for questions that are certain to come up, for example: Why do you want to become a nurse? What is the most important quality a good nurse should have? Apart from nursing, what other careers have you considered? What are your interest and hobbies? Answer the questions fully and precisely. For instance, if one of your interests is reading, be prepared to talk about the sort of books you like. (3)________, do not learn all your answers off (4)________ heart. The interviewer wants to meet a human being, not a robot. Remember, the interviewer is genuinely interested in you, so the more you relax and are yourself, the more (5) ________ you are to succeed.

Read the following passage and choose the best answer (A, B, C, D):
Harvard University, today recognized as part of the top echelon of the world's universities, came from very inauspicious and humble beginning. This oldest of American universities was founded in 1636, just sixteen years after the Pilgrims landed at Plymouth. Included in the Puritan emigrants to the Massachusetts colony during this period were more than 100 graduates of England's prestigious Oxford and Cambridge universities, and these universities graduates in the New Word were determined that their sons would have the same educational opportunities that they themselves had had. Because of this support in the colony for an institution of higher learning, the General Court of Massachusetts appropriated 400 pounds for a college in October of 1636 and early the following year decided on a parcel of land for the school; this land was in an area called Newetowne, which was later renamed Cambridge after its English cousin and is the site of the present-day university. When a young minister named John Harvard, who came from the neighboring town of Charlestown, died from tuberculosis in 1638, he willed half of his estate of 1,700 pounds to the fledgling college. In spite of the fact that only half of the bequest was actually paid, the General Court named the college after the minister in appreciation for what he had done. The amount of the bequest may not have been large, particularly by today's standard, but it was more than the General Court had found it necessary to appropriate in order to open the college. Henry Dunster was appointed the first president of Harvard in 1640, and it should be noted that in addition to serving as president, he was also the entire faculty, with an entering freshmen class of four students. Although the staff did expand somewhat, for the first century of its existence the entire teaching staff consisted of the president and three or four tutors.
2. The passage indicates that Harvard is .

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:
Most of the time, we avoid strangers. It is one of the first lessons we learn (1)__________  children. But according to Dr. Richard Wiseman, it is a habit we should change. Talking to strangers opens up new possibilities in life. It increases the chances of finding luck and friendship. Choosing which strangers to talk to obviously requires a bit of common (2)___________ and judgement, but Liz Barry and Bill Wetzel from New York were so inspired by the idea that they started the “Talk to Me” project. For three years, they sat at bus stops, on street corners and any other place they could find in New York holding a sign saying ‘Talk to me’. They encountered hostility and (3)__________ sometimes, but in general they were surprised by the kindness they encountered. Many philosophical and religious traditions tell us that happiness can be found by living in the present. Now there is some scientific support (4)___________ this belief. Recent research by Harvard University psychologists found that we spend 46.9 percent of our (5)____________ time daydreaming. And when we daydream, we are less happy, the research found.

Water polo is played in ______ pool 1.8 meters deep.

(403)_____

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:
At 7pm on a dark, cold November evening, thousands of people are making their way across a vast car park. They’re not here to see a film, or the ballet, or even the circus. They are all here for what is, bizarrely, a global phenomenon: they are here to see Holiday on Ice. Given that most people don’t seem to be acquainted with anyone who’s ever been, the show’s statistics are extraordinary: nearly 300 million people have seen Holiday on Ice since it began in 1943; it is the most popular live entertainment in the world.
But what does the production involve? And why are so many people prepared to spend their lives travelling round Europe in caravans in order to appear in it? It can't be glamorous, and it's undoubtedly hard work. The backstage atmosphere is an odd mix of gym class and workplace. A curtained-off section at the back of the arena is laughably referred to as the girls' dressing room, but is more accurately described as a corridor, with beige, cracked walls and cheap temporary tables set up along the length of it. Each girl has a small area littered with pots of orange make-up, tubes of mascara and long false eyelashes.
As a place to work, it must rank pretty low down the scale: the area round the ice-rink is grey and mucky with rows of dirty blue and brown plastic seating and red carpet tiles. It's an unimpressive picture, but the show itself is an unquestionably vast, polished global enterprise: the lights come from a firm in Texas, the people who make the audio system are in California, but Montreal supplies the smoke effects; former British Olympic skater Robin Cousins is now creative director for the company and conducts a vast master class to make sure they're ready for the show's next performance.
The next day, as the music blares out from the sound system, the cast start to go through their routines under Cousins’ direction. Cousins says, The aim is to make sure they're all still getting to exactly the right place on the ice at the right time - largely because the banks of lights in the ceiling are set to those places, and if the skaters are all half a metre out they'll be illuminating empty ice. Our challenge, ‘he continues, ‘is to produce something they can sell in a number of countries at the same time. My theory is that you take those things that people want to see and you give it to them, but not in the way they expect to see it. You try to twist it. And you have to find music that is challenging to the skaters, because they have to do it every night.’
It may be a job which he took to pay the rent, but you can't doubt his enthusiasm. “The only place you'll see certain skating moves is an ice show,” he says, “because you're not allowed to do them in competition. It's not in the rules. So the ice show world has things to offer which the competitive world just doesn't.” Cousin knows what he's talking about because he skated for the show himself when he stopped competing - he was financially unable to retire. He learnt the hard way that you can't put on an Olympic performance every night. “I'd be thinking, these people have paid their money, now do your stuff, and I suddenly thought”, “I really can't cope. I'm not enjoying it”. The solution, he realised, was to give 75 per cent every night, rather than striving for the sort of twice-a-year excellence which won him medals.
To be honest, for those of us whose only experience of ice-skating is watching top-class Olympic skaters, some of the movements can look a bit amateurish, but then, who are we to judge? Equally, it's impossible not to be swept up in the whole thing; well, you'd have to try pretty hard not to enjoy it.

For Robin Cousins, the aim of the rehearsal is     .

Choose the best answer:
there / new / customs / different / be / countries / for / celebrating / year.

The leopard is _________ the threat of extinction.

A. in     B. on     C. under     D. below

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 ‌from‌ ‌43‌ ‌to‌ ‌50.‌ ‌
There‌ ‌are‌ ‌two‌ ‌basic‌ ‌types‌ ‌of‌ ‌glaciers,‌ ‌those‌ ‌that‌ ‌flow‌ ‌outward‌ ‌in‌ ‌all‌ 
directions‌ ‌with‌ ‌little‌ ‌regard‌ ‌for‌ ‌any‌ ‌underlying‌ ‌‌terrain‌ ‌‌and‌ ‌those‌ ‌that‌ ‌are‌ ‌confined‌ ‌by‌ ‌terrain‌ ‌to‌ ‌a‌ ‌particular‌ ‌path.‌ ‌The‌ ‌first‌ ‌category‌ ‌of‌ ‌glaciers‌ ‌includes‌ ‌those‌ ‌massive‌ ‌blankets‌ ‌that‌ ‌cover‌ ‌whole‌ ‌continents,‌ ‌appropriately‌ ‌called‌ ‌ice‌ ‌sheets.‌ ‌There‌ ‌must‌ ‌be‌ ‌over‌ ‌50,000‌ ‌square‌ ‌kilometers‌ ‌of‌ ‌land‌ ‌covered‌ ‌with‌ ‌ice‌ ‌for‌ ‌the‌ ‌glacier‌ ‌to‌ ‌
qualify‌ ‌as‌ ‌an‌ ‌ice‌ ‌sheet,‌ ‌when‌ ‌portions‌ ‌of‌ ‌an‌ ‌ice‌ ‌sheet‌ ‌spread‌ ‌out‌ ‌over‌ ‌the‌ ‌ocean,‌ ‌they‌ ‌form‌ ‌ice‌ ‌shelves.‌ ‌
About‌ ‌20,000‌ ‌years‌ ‌ago‌ ‌the‌ ‌Cordilleran‌ ‌Ice‌ ‌sheet‌ ‌covered‌ ‌nearly‌ ‌all‌ ‌the‌ ‌mountains‌ ‌in‌ ‌southern‌ ‌Alaska,‌ ‌western‌ ‌Canada,‌ ‌and‌ ‌the‌ ‌western‌ ‌United‌ ‌States.‌ ‌It‌ ‌was‌ ‌about‌ ‌3‌ ‌kilometers‌ ‌deep‌ ‌at‌ ‌its‌ ‌thickest‌ ‌point‌ ‌in‌ ‌
northern‌ ‌Alberta.‌ ‌Now‌ ‌there‌ ‌are‌ ‌only‌ ‌two‌ ‌sheets‌ ‌left‌ ‌on‌ ‌Earth,‌ ‌those‌ ‌covering‌ ‌Greenland‌ ‌and‌ ‌Antarctica.‌ ‌Any‌ ‌domelike‌ ‌body‌ ‌of‌ ‌ice‌ ‌that‌ ‌also‌ ‌flows‌ ‌out‌ ‌in‌ ‌all‌ ‌directions‌ ‌but‌ ‌covers‌ ‌less‌ ‌than‌ ‌50,000‌ ‌square‌ ‌kilometers‌ ‌is‌ ‌called‌ ‌an‌ ‌ice‌ ‌cap.‌ ‌Although‌ ‌ice‌ ‌caps‌ ‌are‌ ‌rare‌ ‌nowadays,‌ ‌there‌ ‌are‌ ‌a‌ ‌number‌ ‌in‌ ‌northeastern‌ ‌Canada,‌ ‌on‌ ‌
Baffin‌ ‌Island,‌ ‌and‌ ‌on‌ ‌the‌ ‌Queen‌ ‌Elizabeth‌ ‌Islands.‌ ‌The‌ ‌second‌ ‌category‌ ‌of‌ ‌glaciers‌ ‌includes‌ ‌those‌ ‌of‌ ‌a‌ ‌variety‌ ‌of‌ ‌shapes‌ ‌and‌ ‌sizes‌ ‌generally‌ ‌called‌ ‌mountain‌ ‌or‌ ‌alpine‌ ‌glaciers.‌ ‌Mountain‌ ‌glaciers‌ ‌are‌ ‌typically‌ ‌identified‌ ‌by‌ ‌the‌ ‌landform‌ ‌that‌ ‌controls‌ ‌their‌ ‌flow.‌ ‌One‌ ‌form‌ ‌of‌ ‌mountain‌ ‌glacier‌ ‌that‌ ‌resembles‌ ‌an‌ ‌ice‌ ‌cap‌ ‌in‌ ‌that‌ ‌it‌ ‌flows‌ ‌outward‌ ‌in‌ ‌several‌ ‌directions‌ ‌is‌ ‌called‌ ‌an‌ ‌ice‌ ‌field.‌ ‌The‌ ‌difference‌ ‌between‌ ‌an‌ ‌ice‌ ‌field‌ ‌and‌ ‌an‌ ‌ice‌ ‌cap‌ ‌is‌ ‌‌subtle‌.‌ ‌Essentially,‌ ‌the‌ ‌flow‌ ‌of‌ ‌an‌ ‌ice‌ ‌field‌ ‌is‌ ‌somewhat‌ ‌controlled‌ ‌by‌ ‌surrounding‌ ‌terrain‌ ‌and‌ ‌thus‌ ‌does‌ ‌not‌ ‌have‌ ‌the‌ ‌domelike‌ ‌shape‌ ‌of‌ ‌a‌ ‌cap.‌ ‌
There‌ ‌are‌ ‌several‌ ‌ice‌ ‌fields‌ ‌in‌ ‌the‌ ‌Wrangell.‌ ‌St.‌ ‌Elias,‌ ‌and‌ ‌Chugach‌ ‌mountains‌ ‌of‌ ‌Alaska‌ ‌and‌ ‌northern‌ ‌British‌ ‌Columbia.‌ ‌Less‌ ‌spectacular‌ ‌than‌ ‌large‌ ‌ice‌ ‌fields‌ ‌are‌ ‌the‌ ‌most‌ ‌common‌ ‌types‌ ‌of‌ ‌mountain‌ ‌glaciers:‌ ‌the‌ ‌cirque‌ ‌and‌ ‌valley‌ ‌glaciers.‌ ‌Cirque‌ ‌glaciers‌ ‌are‌ ‌found‌ ‌in‌ ‌depressions‌ ‌in‌ ‌the‌ ‌surface‌ ‌of‌ ‌the‌ ‌land‌ ‌and‌ ‌have‌ ‌a‌ ‌characteristic‌ ‌circular‌ ‌shape.‌ ‌The‌ ‌ice‌ ‌of‌ ‌valley‌ ‌glaciers,‌ ‌bound‌ ‌by‌ ‌terrain,‌ ‌flows‌ ‌down‌ ‌valleys,‌ ‌curves‌ ‌around‌ ‌‌their‌ ‌‌corners,‌ ‌
and‌ ‌falls‌ ‌over‌ ‌cliffs.‌ ‌

All‌ ‌of‌ ‌the‌ ‌following‌ ‌are‌ ‌alpine‌ ‌glaciers‌ ‌EXCEPT____________.‌ ‌

Read the passage carefully and choose the correct answer

I was born to dance. I've been dancing all my life, ever since my mother, who gave up a dancing career on the stage when she married my father, picked me up and twirled me around as an infant. As much as I loved dancing with her, her greatest gift to me was her “unconditional love” during her lifetime.

My parents divorced after only 5 years of marriage, but my father remarried a lovely lady who also loved to dance. They used to take me to a dancing club where I would listen to the music and watch them dance-occasionally my step-mother, Mary, invited me to dance.

I also met my wife, Charlotte, in a dancing party. I danced with her for about 15 minutes, and during that brief span, I realized that I fell in love with her. We kept dancing throughout our marriage. My earliest memories of dancing with my daughters started when I came home from work to our small home in Marblehead, Massachusetts, and my daughter Laura was about 3 years old. It was very relaxing for me to turn on the record player, pick up Laura in my arms, and dance her around the room!

Our family danced a lot. My daughters, Laura and Anne, and I continued to dance on every occasion. One favorite memory I have of dancing with Laura and Anne was when I took each of them when they were seniors in high school to the Daddy-Daughter dance. We won both dance competitions!

As their father, I have tried to provide my daughters with unconditional love, as my Mother provided to me, endless emotional and loving support, and good educations and life experiences which have helped prepare them for happy and successful adult lives. Being a father who is worthy of their love and respect, I consider fatherhood a privilege, not an entitlement.

In 1994, my oldest daughter Laura gave me a lovely book, which I still have, entitled “Fathers and Daughters.” My Father’s Day suggestion to every father is to dance with your daughters at every opportunity. It will not only bring you closer, it will give them memories of you “to hang onto” long after we are gone.

Which sentence is not true?

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 :
Fossil fuels are used to generate the majority of the world’s energy, and they come in different forms. For example, coal may be burned in a power (1)_________ to generate electricity, but gasoline is burned in a car’s engine to make it run. Neither of these two sources is considered green energy because they produce a lot of pollution when they are burned. In addition, they come from a source that is inevitably going to (2)__________. Green energy can be defined as any energy source that is to some degree non­polluting. When it is called (3)__________, this means that a person can replace the same amount of energy that was consumed by that person (4)__________ that person’s lifetime. Since it took millions and millions of years to create the fossil fuels that we now burn, we know that they cannot be replaced by us. Wind power and solar power, (5)__________ harnessed properly, are two excellent sources of green energy. Once the necessary parts such as wind turbines to generate wind power and solar panels to create solar power have been produced, only the pollution from the production is left.

Choose the best answer:
When did you have it? → How long

Background, in relation to computers, on the screen, the color on which characters are displayed. (1) _______, a white background may be used for black characters. In a windowing environment in which more than one program or document can be available to the user, open but currently inactive (2) _______ are said to be in the background. In the context of operating systems and program execution, background refers to a process, or task, assigned a lower priority in the microprocessor's share of time to tasks other than the task running in the (3) _______. A background process thus often performs its work, such as printing or checking for arriving messages on an electronic mail network, invisibly unless the user requests an update or brings the task to the foreground. (4) _______, only multitasking operating systems are able to support background processing. However, some operating systems that do not support multitasking may be able to perform one or more types of background tasks. For example, in the Apple Macintosh operating system running in Single-Launch Mode (with multitasking (5) _______), the Background Printing option can be used to print documents while the user is doing other work.

(15)________

Choose the best answer:
Thanh Giong Festival/ commemorate/ Saint Giong/, an imaginary/ hero/ the/ Vietnamese.

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:
Composers today use a wider variety of sounds than ever before, including many that were once considered undesirable noises. Composer Edgard Varese (1883-1965) called thus the “liberation of sound…the right to make music with any and all sounds.” Electronic music, for example – made with the aid of computers, synthesizers, and electronic instruments – may include sounds that in the past would not have been considered musical.
Enviromental sounds, such as thunder, and electronically generated hisses and blips can be recorded, manipulated, and then incorporated into a musical composition. But composers also draw novel sounds from voices and non-electronic instruments. Singers may be asked to scream, laugh, groan, sneeze, or to sing phonetic sounds rather than words. Wind and string players may lap or scrape their instruments. A brass or woodwind player may hum while playing, to produce two pitches at once; a pianist may reach inside the piano to pluck a string and then run a metal blade along it. In the music of the Western world, the greatest expansion and experimentation have involved percussion instruments, which outnumber strings and winds in many recent compositions. Traditional persussion instruments are struck with new types of beaters; and instruments that used to be couriered unconventional in Western music – tom-toms, bongos, slapsticks, maracas – are widely used.
In the search for novel sounds, increased use has been made in Western music of Microtones. Non-Western music typically divides and intervals between two pitches more finely than Western music does, thereby producing a greater number of distinct tones or micro tones, within the same interval. Composers such as Krzysztof Penderecki create sound that borders on electronic noise through tone clusters – closely spaced tones played together and heard as a mass, block, or band of sound. The directional aspect of sound has taken on new importance as well Loudspeakers or groups of instruments may be placed at opposite ends of the stage, in the balcony, or at the back and sides of the auditorium. Because standard music notation makes no provision for many of these innovations, recent music scores may contain graph like diagrams, new note shapes and symbols, and novel ways of arranging notation on the page.

According to the passage, which of the following would be considered traditional elements of Western music ?

Read the following passage and choose the best answer (A, B, C, D):
Thanks to our modern lifestyle, with more and more time spent sitting down in front of computers than ever before, the number of overweight people is at a new high. As people frantically search for a solution to this problem, they often try some of the popular fad diets being offered. Many people see fad diets as innocuous ways of losing weight, and they are grateful to have them. Unfortunately, not only don't fad diets usually do the trick, they can actually be dangerous for your health. Although permanent weight loss is the goal, fewareabletoachieveit. Expertsestimate that 95 percent of dieters return to their starting weight, or even add weight. While the reckless use of fad diets can bring some initial results, long-term results are very rare. Nonetheless, people who are fed up with the difficulties of changing their eating habits often turn to fad diets. Rather than being moderate, fad diets involve extreme dietary changes. They advise eating only one type of food, or they prohibit other types of foods entirely. This results in a situation where a person's body doesn't get all the vitamins and other things that it needs to stay healthy. One popular fad diet recommends eating lots of meat and animal products, while nearly eliminating carbohydrates. A scientific study from Britain found that this diet is very high in fat. According to the study, the increase of damaging fats in the blood can lead to heart disease and, in extreme cases, kidney failure. Furthermore, diets that are too low in carbohydrates can cause the body to use its own muscle for energy. The less muscle you have, the less food you use up, and the result is slower weight loss. Veteran dieters may well ask at this point, "What is the ideal diet?" Well, to some extent, it depends on the individual. A United States government agency has determined that to change your eating habits requires changing your psychology of eating, and everyone has a different psychology. That being said, the British study quoted above recommends a diet that is high in carbohydrates and high in fiber, with portions of fatty foods kept low. According to the study, such a diet is the best for people who want to stay healthy, lose weight, and keep that weight off. And, any dieting program is best undertaken with a doctor's supervision.
2. According to the passage, why are there more overweight people nowadays?