Read the text below and decide which answer (A,B,C, or D) best fits each space.
MY FIRST JOB

When I was 19, I (58) …….. out of my university course and ended up getting a job in a local travel agent’s. I’d seen the (59) …….. for the job in local paper. It said they wanted someone with a nice (60) …….. and a friendly (61) …….. .I thought the job might be an (62) …….. to send people to interesting places and to see some of the world myself. (63) …….. , it turned out to be a bit of a joke. I arrived at work on the first day with a positive (64) …….., ready to work and learn about new places. I spent that morning and every morning for the first three months filling (65)…….. forms and making coffee for the rest of the staff. (66) …….. I was hoping to be dealing with travel-hungry people with a good idea of where they wanted to go, the (67) …….. customer took ages to make their mind (68) …….. . It was amazing the number  of  customers  who  would  spend  ages  finding  the  perfect  destination  only  to have a change (69) …….. heart at the last moment. If we did organize the trip of a lifetime for someone, we rarely got thanks (70) …….. all our efforts. I now work in publishing (71) …….. a living, so these days I’m a customer in travel agencies. One thing I always keep (72) …….. mind is the need to say thank you.

65..................

Read the text below and decide which answer (A,B,C, or D) best fits each space.
Statesmen define a family as ―a group of indivi duals having a commo n  dwelling andrelated by blood, adoption or marriage, (1) includes common law relationships.‖ Most people are born into one of these groups and (2) live their lives as a family in such a group.Although the definition of a  family may not change, (3).relationship of people to each other within the family  group changes as society changes. More and more wives are (4) paying jobs,  and, as a result, the roles of husband, wife and children are changing. Today,  men expect to(5) . for pay for about 40 years of their lives, and, in today‘s  marriages(6) . which both spouses have paying jobs, women can expect to  work for about 30 to 35 years of their lives. This mean that man must learn to do  their share of family tasks such as caring for the children and daily (7) chores.  Children, too, especially adolescents, have to (8) with the members od their  family in sharing household tasks. The widespread acceptance of contraception  has meant that having (9) is as matter of choice, not an automatic result of  marriage. Marriage itself has become a choice. As alternatives (10)  common-law relationships and single-parent families have become socially  acceptable, women will become more independent. 

10)........................

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.

Machines already perform a lot of tasks that were usually done by humans, such as building cars, doing complex calculations, and even marking exam papers. But now it seems that ever more intelligent machines are straying into areas where we never envisaged they would go. We have always taken pride in having a unique kind of intelligence that machines could never match, one which allows us to think of new ideas and produce creative and artistic works. But it seems that even here, computers are lining up to compete with us.

Machines can easily be trained to do the physical work of producing art. About ten years ago, a painting robot known as e-David was created at a university in Germany. And recently in New York, the painting ‘Portrait of Edmond de Belamy' has been auctioned for nearly half a million dollars. What made it a bit unusual was that the idea, and the image itself, was produced entirely by a computer. A group of young French artists gave instructions to the computer, aiming simply to show that computers can be creative.

Some artists are now working with computers to produce a new kind of art. Computer-generated works of art are certainly interesting, and make us think about the limits of what machines can and cannot do. But not everyone would accept that they qualify as art. Some enthusiasts would argue they do, and the collectors willing to pay high prices for these works would suggest there is definitely a market for computer art. Others, however, would disagree.

Many 'real' artists would claim that art is an expression of human intelligence and human emotions. More importantly, it is about a desire to communicate with other people. These things, they argue, are part of being human and can never be produced by a machine.

(Adapted from Formula-Exam Trainer)

The word they in paragraph 4 refers to_______

BASKETBALL
1. Although he created the game of basketball at the YMCA in Springfield, Massachusetts, Dr. James A Naismith was a Canadian. Working as a physical education instructor at the International YMCA, now Springfield College, Dr. Naismith noticed a lack of interest in exercise among students during the wintertime. The new England winters were fierce, and the students balked at participating in outdoor activities. Naismith determined a fast-moving game that could be played indoors would fill a void after the baseball and football seasons had ended.
2. First, he attempted to adapt outdoor games such as soccer and rugby to indoor play, but he soon found them unsuitable for confined areas. Finally, he determined that he would have to invent a game.
3. In December of 1891, Dr. Naismith hung two old peach baskets at either end of the gymnasium at the school, and, using a soccer ball and nine players on each side, organized the first basketball game. The early rules allowed three points for each basket and made running with the ball violation. Every time a goal was made, someone had to climb a ladder to retrieve the ball.
4. Nevertheless, the game became popular. In less than a year, basketball was being played in both the United States and Canada. Five years later, a championship tournament was staged in New York City, which was won by the Brooklyn Central YMCA.
5. The teams had already been reduced to seven players, and five became standard in  1897 season. When basketball was introduced as a demonstration sport in the 1904 Olympic Games in St. Luis, it quickly spread throughout the world. In 1906, a metal hoop was used for the first time to replace the basket, but the name basketball has remained.

The word "staged" in paragraph 4 is closest in meaning 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.

   The countryside of Britain is well known for its beauty and many contrasts: its bare mountains and moorland, its lakes, rivers and woods, and its long, often wild coastline. Many of the most beautiful areas are national parks and are protected from development. When British people think of the countryside they think of farmland, as well as open spaces. They imagine cows or sheep in green fields enclosed by hedges or stone walls, and fields of wheat and barley. Most farmland is privately owned but is crossed by a network of public footpaths.

   Many people associate the countryside with peace and relaxation. They spend their free time walking or cycling there, or go to the country for a picnic or a pub lunch. In summer people go to fruit farms and pick strawberries and other fruit. Only a few people who live in the country work on farms. Many commute to work in towns. Many others dream of living in the country, where they believe they would have a better and healthier lifestyle.

   The countryside faces many threats. Some are associated with modern farming practices, and the use of chemicals harmful to plants and wildlife. Land is also needed for new houses. The green belt, an area of land around many cities, is under increasing pressure. Plans to build new roads are strongly opposed by organizations trying to protect the countryside. Protesters set up camps to prevent, or at least delay, the building work.

   America has many areas of wild and beautiful scenery, and there are many areas, especially in the West in states like Montana and Wyoming, where few people live. In the New England states, such as Vermont and New Hampshire, it is common to see small farms surrounded by hills and green areas. In Ohio, Indiana, Illinois and other Midwestern states, fields of corn or wheat reach to the horizon and there are many miles between towns.

   Only about 20% of Americans live outside cities and towns. Life may be difficult for people who live in the country. Services like hospitals and schools may be further away and going shopping can mean driving long distances. Some people even have to drive from their homes to the main road where their mail is left in a box. In spite of the disadvantages, many people who live in the country say that they like the safe, clean, attractive environment. But their children often move to a town or city as soon as they can.

   As in Britain, Americans like to go out to the country at weekends. Some people go on camping or fishing trips, others go hiking in national parks.

The phrase “reach to the horizon” in paragraph 4 is closest in meaning to ______.

Read the text below and decide which answer (A,B,C, or D) best fits each space.
Postsecondary institutions and private schools are corporations under U.S. law.  They are approved to operate as non-profit, for-profit, or public corporations (1)  _______ education and training. Increasingly, state authorities are requiring  approved educational providers to apply (2) _______ and receive accreditation  as a condition of final and continued approval. 
As corporate entities, U.S. institutions are internally self-governing and are (3)  _______ to make property, facilities, equipment, and utilities transactions; make  their own personnel decisions; decide whom to admit to study and to graduate;  (4) _______ their own funds from outside sources; enter into contracts and  compete for grants; and do most of the other things that corporations do.  Institutions compete (5) _______ one another for students, research funding,  faculty, and other benefits. Public institutions may compete within the same  state or territory for budget appropriations. It is the corporate nature of  institutions and the competition within the system that (6) _______ Americans  to refer to the concept of the educational or academic marketplace - an important distinctive element of the way U.S. education is organized. 
Some institutions are governed (7) _______ under multi-campus arrangements.  These include most local public schools (governed by school districts) and many  state community college and university systems. Whether single- or multi campus, institutional corporations (8) _______ by boards of citizens, both  alumni and non- alumni, who are ultimately responsible for all operations. They  appoint senior (9) _______, such as principals, headmasters, presidents, and  deans; and approve the actions taken (10) ______ their name. 

2........................

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.

GLOBAL WARMING

Few people now question the reality of global warming and its effects on the world's climate. Many scientists (1) _____________the blame for recent natural disasters on the increase in the world's temperatures and are convinced that, more than ever before, the Earth is at risk from the forces of the wind, rain and sun. According to them, global warming is making extreme weather events, such as hurricanes and droughts, even more (2) _____________and causing sea levels all around the world to rise.

     Environmental groups are putting pressure on governments to take action to reduce the amount of carbon dioxide which is given (3) _____________by factories and power plants, thus attacking the problem at its source. They are in favor of more money being spent on research into solar, wind and wave energy devices, (4) _____________ could then replace existing power station.

Some scientists, (5) _____________, believe that even if we stopped releasing carbon dioxide and other gases into the atmosphere tomorrow, we would have to wait several hundred years to notice the results. Global warming, it seems, is to stay.

(4) _________

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 from 41 to 45.
SOCIAL NETWORK
A 16-year-old girl from Essex has been sacked after describing her job as boring on the social networking website, Facebook. The teenager, who had been working (41)      an administrative assistant at a    marketing company for just three weeks, didn‟t feel very enthusiastic about the duties she was asked to do. (42)       of moaning to her friends she decided to express her thoughts on her Facebook page to a colleague, who (43)       the boss‟s attention to it. He immediately fired her on the (44)       that her public display of dissatisfaction made it impossible for her to continue working for the company. She later told newspapers she had been treated totally unfairly, especially as she hadn‟t even mentioned the company‟s name. She claimed she‟s been perfectly happy with her job and that her light-hearted comments shouldn‟t (45)      taken seriously. A spokesperson from a workers‟ union said the incident demonstrated two things: firstly, that people need to protect their privacy online and secondly, that employers should be less sensitive to criticism.
(45).......................

BASKETBALL
1. Although he created the game of basketball at the YMCA in Springfield, Massachusetts, Dr. James A Naismith was a Canadian. Working as a physical education instructor at the International YMCA, now Springfield College, Dr. Naismith noticed a lack of interest in exercise among students during the wintertime. The new England winters were fierce, and the students balked at participating in outdoor activities. Naismith determined a fast-moving game that could be played indoors would fill a void after the baseball and football seasons had ended.
2. First, he attempted to adapt outdoor games such as soccer and rugby to indoor play, but he soon found them unsuitable for confined areas. Finally, he determined that he would have to invent a game.
3. In December of 1891, Dr. Naismith hung two old peach baskets at either end of the gymnasium at the school, and, using a soccer ball and nine players on each side, organized the first basketball game. The early rules allowed three points for each basket and made running with the ball violation. Every time a goal was made, someone had to climb a ladder to retrieve the ball.
4. Nevertheless, the game became popular. In less than a year, basketball was being played in both the United States and Canada. Five years later, a championship tournament was staged in New York City, which was won by the Brooklyn Central YMCA.
5. The teams had already been reduced to seven players, and five became standard in  1897 season. When basketball was introduced as a demonstration sport in the 1904 Olympic Games in St. Luis, it quickly spread throughout the world. In 1906, a metal hoop was used for the first time to replace the basket, but the name basketball has remained.

Why did Naismith decide to invent basketball?

Read the following pasage and decide which answer (A, B, C or D) best fits each space from 1 to 5.
With job vacancies available all year round offering high salaries, Vietnam has been ranked the second best place in the world to teach English by TEFL Exchange, a community for teachers of English           (1)_________ a foreign language.
The site (2)_________ that a foreign English teacher can earn between $1,200-2,200 a month in Vietnam, where the average annual income in 2016 was just $2,200. They can (3)_________ a job any time of year and the best places to do so are the country’s three largest cities: Hanoi, Ho Chi Minh City and Da Nang.
Candidates only need to hold a bachelor’s (4)_________ and a TEFL  (Teaching  English as a Foreign Language) certificate.
English is an obligatory subject from sixth grade across Vietnam, but in large cities, many primary schools demand high (5)_________ . Foreign language centers have been thriving here, with students as young as three years old.
(2)...................

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.

   One day in 1924, five men who were camping in the Cascade Mountains of Washington saw a group of huge apelike creatures coming out of the woods. They hurried back to their cabin and locked themselves inside. While they were in, the creatures attacked them by throwing rocks against the walls of the cabin.

   After several hours, these strange hairy giants went back into the woods. After this incident the men returned to the town and told the people of their adventure. However, only a few people accepted their story. These were the people who remembered hearing tales about footprints of an animal that walked like a human being.

   The five men, however, were not the first people to have seen these creatures called Bigfoot. Long before their experience, local Native Americans were certain that a race of apelike animals had been living in the neighboring mountain for centuries. They called these creatures Sasquatch.

   In 1958, workmen, who were building a road through the jungles of Northern California often found huge footprints in the earth around their camp.

   Then in 1967, Roger Patterson, a man who was interested in finding Bigfoot went into the Northern California jungles with a friend. While riding, they were suddenly thrown off from their horses. Patterson saw a tall apelike animal standing not far away. He managed to shoot seven rolls of film of the hairy creature before the animal disappeared in the hushes. when Patterson's film was shown to the public, not many people believed his story.

   In another incident, Richard Brown, a music teacher and also an experienced hunter spotted a similar creature. He saw the animal clearly through the telescopic lens of his rifle. He said the creature looked more like a human than an animal.

   Later many other people also found deep footprints in the same area. In spite of regular reports of sightings and footprints, most experts still do not believe that Bigfoot really exists.

The BEST title for this passage would be

Fill in each numbered blank with one suitable word or phrase.

If you want to prepare yourself for great achievement and have more to (1) ______ to your education or your work, try reading more books. (2) ______ up some of the interestingly informative books and search for well-researched material that can help you grow. We should (3) ______ our children to read more books and (4) ______ less time watching TV. Some people have commented that this is inconsistent. "Why is the written word a superior way to get information than television?" That is (5) ______ interesting point of view worth further (6) ______. Reading is a skill that is in much greater demand than the demand for watching TV. There are no jobs that (7) ______ a person to be able to watch TV but reading is an integral part of many jobs. The written word is an incredibly flexible and efficient way of communication. You can write something down and, in no time, it can be (8) ______ to many different people. Not only that, we can (9) ______ vast amounts of information through reading in a very short time. A good reader can acquire more information in reading for two hours than someone watching TV can acquire in a full day. You are able to gain a lot of information quickly because you are a fast reader with good (10) ______ skills. It will save you massive amounts of time and you will be able to assimilate vast quantities of information.

(2) ______

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 from 1 to 5.
BOOKS
Nearly all the discoveries that have been made through the ages can (1)________ in books. The invention of the book is one of humankind’s (2)________ achievements,  the importance of which can not be evaluated. Books are very useful, providing us with both entertainment and information. The production of books began in Ancient Egypt, though not in the form that is accessible to us today. The books read by Romans, (3)________ , have some similarities to the ones we read now. Until the middle of the 15th century, in Europe, all books were written by hand. They (4)________ often beautifully illustrated and always rare and expensive. With printing came the possibility of cheap, large publication and distribution of book making (5) ________ more widespread and reliable.
2()..........................

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 from 31 to 35.
On April 3, 1972, a man came out of the Hilton hotel in Manhattan and started walking down the street. He stopped, (31) his hand with a strange object in it, put it to his ear and started to talk into it. This was the beginning of mobile phone (32) , more than 30 years ago. That man was Motorola's project manager, Martin Cooper, who was (33) his 34th birthday that day. The strange object was the first mobile phone, which was nicknamed “the shoe” because of its  unusual (34)  .Mr. Cooper had gone to New York to introduce the new phone. The first call he made was to his rival, Joe Engel at AT&T's research centre. Engel was responsible for the development of the radiophones for cars. "I called him and said that I was talking on a real mobile phone (35)         I was holding in my hand," said Cooper. "I don't remember what he said in reply, but I'm sure he wasn't happy." The quality of the call was very good, because although New York had only one base station at that time, it was being used by only one user - Martin Cooper.
(31).....................

Read the following passage and choose the best answer for each blank.

AUDIOBOOKS - BOOKS ON CASSETTE

In the modern world, there is a wealth of leisure activities to choose from. Entertainment industries (26)________ for your leisure time. You can watch TV, listen to music, go to an art gallery or concert or, of course, read a book. Sometimes it seems that reading is (27)________because, even if you're a fast reader, it can take a (28)________amount of time to finish a novel, for example. But in the (29)________world, time is something that can be in short supply. Book publishers haven't been (30)________to realise this and are now selling a product which needn't (31)________as much of your time but still tells you an excellent story. The new product is the audiobook -cassette recordings of shortened novels, often read by well-known personalities or the authors themselves. Audiobooks are (32)________new but people are becoming more aware of them and sales are increasing all the time. One of the attractions of audiobooks is that they're (33)________listening to the radio. You can listen to what you want when you want, and you won't ever (34)________anything. Much of their appeal lies in their flexibility. They (35)________you to do other things while you're listening, such as driving or doing the housework. For some people, audiobooks can be a much more enjoyable way of gaining knowledge than reading.

(35)________

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. 
     The generation gap that was so in evidence during the 60s has resurfaced, but it is not the disruptive force that it was during the Vietnam era, a 2009 study suggests. The Pew Research Center study found that 79% of Americans see major differences between younger and older adults in the way they look at the world. In 1969, a Gallup Poll found that a smaller percentage, 74%, perceived major differences.
     Today, however, although more Americans see generational differences, most do not see them as divisive. That is partly because of the areas of difference. The top areas of disagreement between young and old, according to the Pew Research Study, are the use of technology and taste in music. Grandparents are likely to have observed these differences in their grandchildren who are tweens, teens, and young adults.
     If large differences between the generations exist, why don't they spawn conflict? The answer is twofold.
     First, the two largest areas of difference—technology and music—are less emotionally charged than political issues. The older generation is likely to be proud of the younger generation's prowess in technology rather than to view it as a problem. As for the musical differences, each generation wants its own style of music, and the older generation generally can relate to that desire.
     Second, in the other areas of difference, the younger generation tends to regard the older generation as superior to their own generation—clearly a difference from the 1960s with its rallying cry of "Don't trust anyone over thirty." According to the Pew study, all generations regard older Americans as superior in moral values, work ethic and respect for others.

The word “their” in the last paragraph refers to __________.

Choose the item among A, B, C or D that best answers the question about the passage:

"A good deal of fascinating research has been done about the reading patterns of young people, and it is surprising to discover at what an early age children start expressing preferences for particular kinds of books. A recent report which examined in detail the reading habits of primary-school children, showed that even seven-year-old boys and girls have clear views about what they want to read. Girls, in general, read more, and far more girls than boys preferred reading stories. Boys were showing a taste for the more instant appeal of picture stories, or else books about their hobbies.
 These tastes continue unchanged until girls are teenagers. Apparently girls read more in general, but more fiction in particular. You could say that there are more opportunities for girls to read fiction: magazines encourage the fiction habits in girls in their early teens, and by their late teens they have probably moved on to the adult women’s magazines. Teenage boys tend to buy magazines about their hobbies: motorcycles, heavy transport and so on.
 Adult reading tastes are also the subject of research. Again the number of women who read for pleasure is considerably higher than the number of men. Ít seems that the majority of women still want love stories. There has also been some analysis of what men actually read. Apparently only 38 percent of men read anything, but 50 percent of what they read is fiction in the form of action-packed stories of space or gunmen."

4. According to the passage , …………..

Read the text below and decide which answer (A,B,C, or D) best fits each space.
MY FIRST JOB

When I was 19, I (58) …….. out of my university course and ended up getting a job in a local travel agent’s. I’d seen the (59) …….. for the job in local paper. It said they wanted someone with a nice (60) …….. and a friendly (61) …….. .I thought the job might be an (62) …….. to send people to interesting places and to see some of the world myself. (63) …….. , it turned out to be a bit of a joke. I arrived at work on the first day with a positive (64) …….., ready to work and learn about new places. I spent that morning and every morning for the first three months filling (65)…….. forms and making coffee for the rest of the staff. (66) …….. I was hoping to be dealing with travel-hungry people with a good idea of where they wanted to go, the (67) …….. customer took ages to make their mind (68) …….. . It was amazing the number  of  customers  who  would  spend  ages  finding  the  perfect  destination  only  to have a change (69) …….. heart at the last moment. If we did organize the trip of a lifetime for someone, we rarely got thanks (70) …….. all our efforts. I now work in publishing (71) …….. a living, so these days I’m a customer in travel agencies. One thing I always keep (72) …….. mind is the need to say thank you.

60...................

Read the passage below and decide whether the statements are TRUE or FALSE?

When a child learns to read and write, he must access the schema developed in his brain. As he reads, the child creates pictures in his mind and uses imagination and points of reference to put the story together. Television images do not go through a complex symbolic transformation. The mind does not have to decode and manipulate during the television experience. Watching television and playing video games do not develop a child's skills in word recognition, decoding, vocabulary, spelling or high-level thinking. The connection between television's effects on children's reading abilities and the decline in their writing skills is clear: there is no question in the minds of educators that a student who cannot read with the true comprehension will never learn to write well. Writing, after all, is book talk, and you only learn book talk by reading. It has been shown that reading stimulates brain activity. While reading, we imagine settings, characters and we become part of the world of the story. Conversely, it has been shown that watching television prevents brain activity. Children who watch too much television are less socially developed and have problems maintaining concentration. Reading, instead of watching television, enriches our lives, develops the imagination, and intellect, and is less brain deadening. Reading is good for us, it makes one a better person.

As a child learns the ways to read and write, he must get access to the schema in his brain.

 Choose the item among A, B, C or D that best answers the question about the passage:

"Books which give instructions on how to do things are very popular in the United States today. Thousands of these How-to books are useful: in fact, there are about four thousand books with titles that begin with the words “How to”. One book, may tell you how to earn more money, another may tell you how to save or spend it, and another may explain how to give your money away.
 Many How-to books give advice on careers. They tell you how to choose a career and how to succeed in it. If you fail, however, you can buy the book “How to Turn Failure into Success”. If you would like to become very rich, you can buy the book “How to Make a Millionaire”. If you never make any money at all, you may need a book called “How to Live on Nothing”.
 One of the most popular types of books is one that helps you with personal problems. If you want to have a better love of life, you can read “How to Succeed in Love every Minute of Your Life”. If you tired of books on happiness, you may prefer books which give step-by-step instructions on how to redecorate or enlarge a house.
 Why have How-to books become so popular? Probably because life has become so complex. Today people have far more free time to use, more choices to make, and more problems to solve. How-to books help people deal with modern life."

2. The passage tells us that How-to books sell well on how ………

Many of the most damaging and life-threaling types of weather-torrential rains, severe thunderstorms, and tornadoes-begin quickly, strike suddenly, and dissipate rapidly, devastating small regions while leaving neighboring areas untouched. One such event, a tornado, struck the northeastern section of Edmonton, Alberta, in July 1987. Total damages from the tornado exceeded $250 million, the highest ever for any Canadian storm. Conventional computer models of the atmosphere have limited value in predicting short-live local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to discern the subtle atmospheric changes that precede these storms. In most nations, for example, weather balloon observations are taken just once every twelve hours at locations typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.
Until recently, the observation-intensive approach needed for accurate, very short range forecasts, or “Nowcasts”, was not feasible. The cost of equipping and operating many thousands of conventional weather stations was prohibitively high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were insurmountable. Fortunately, scientific and technological advances have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observation over large regions at a relatively low cost. Communications satellites can transmit data around the world cheaply and instantaneously, and modern computers can quickly compile and analyzing this large volume of weather information. Meteorologists and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, Nowcasting is becoming a reality.

Why does the author state that observations are taken “just once every twelve hours”?