Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.

The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.

On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a travelling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.

What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

As the discussion about their safety continues, it appears that it’s best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often

According to the passage, cell phones are especially popular with young people because  ________ .

 

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The first question we might ask is: What can you learn in college that will help you in being an employee? The schools teach (55) _______ many things of value to the future accountant, doctor or electrician. Do they also teach anything of value to the future employee? Yes, they teach the one thing that it is perhaps most valuable for the future employee (56)_______. But very few students bother to learn it. This basic skill is the ability to organize and express ideas in writing and in speaking. This means that your success as an employee will depend on your ability to communicate with people and to (57) _______ your own thoughts and ideas to them so they will (58) _______ understand what you are driving and be persuaded. Of course, skill in expression is not enough (59) _______ itself. You must have something to say in the first place. The effectiveness of your job depends (60) _______ your ability to make other people understand your work as they do on the quality of the work itself. Expressing one‘s thoughts is one skill that the school can (61) _______ teach. The foundations for skill in expression have to be (62) _______ early: an interest in and an ear (63) _______ language; experience in organizing ideas and data, in brushing aside the irrelevant, and above all the habit of verbal expression. If you do not these foundations (64) _______ your school years, you may never have an opportunity again.

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
Carbon dating can be used to estimate the age of any organic natural material; it has been used successfully in archeology to determine the age of ancient artifacts or fossils as well as in a variety of other fields. The principle underlying the use of carbon dating is that carbon is a part of all living things on Earth. Since a radioactive substance such as carbon-14 has a known half-life, the amount of carbon-14 remaining in an object can be used to date that object.
Carbon-14 has a half-life of 5,570 years, which means that after that number of years, half of the carbon- 14 atoms have decayed into nitrogen-14. It is the ratio of carbon-14 in that substance that indicates the age of the substance. If, for example, in a particular sample the amount of carbon- 14 is roughly equivalent to the amount of nitrogen-14, this indicates that around half of the carbon- 14 has decayed into nitrogen-14, and the sample is approximately 5,570 years old.
Carbon dating cannot be used effectively in dating objects that are older than 80,000 years. When objects are that old, much of the carbon-14 has already decayed into nitrogen-14, and the molecule amount that is left doesn’t provide a reliable measurement of age. In the case of older objects, other age-dating methods are available, methods which use radioactive atoms with longer half-lives than carbon has.

It is implied in the passage that     .

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In the history of technology, computers and calculators were innovative developments. They are essentially different from all other machines because they have a memory. This memory stores instructions and information. In a calculator, the instructions are the various functions of arithmetic, which are permanently remembered by the machine and cannot be altered or added to. The information consists of the numbers keyed in.
An electronic pocket calculator can perform almost instant arithmetic. A calculator requires an input unit to feed in numbers, a processing unit to make the calculation, a memory unit, and an output unit to display the result. The calculator is powered by a small battery or by a panel of solar cells. Inside is a microchip that contains the memory and processing units and also controls the input unit, which is the keyboard, and the output unit, which is the display.
The input unit has keys for numbers and operations. Beneath the key is a printed circuit board containing a set of contacts for each key. Pressing a key closes the contacts and sends a signal along a pair of lines in the circuit board to the processing unit, in which the binary code for that key is stored in the memory. The processing unit also sends the code to the display. Each key is connected by a different pair of lines to the processing unit, which repeatedly checks the lines to find out when a pair is linked by a key.
The memory unit stores the arithmetic instructions for the processing unit and holds the temporary results that occur during calculation. Storage cells in the memory unit hold the binary codes for the keys that have been pressed. The number codes, together with the operation code for the plus key,   are    held    in    temporary    cells    until    the    processing    unit    requires    them. When the equals key is pressed, it sends a signal to the processing unit. This takes the operation code-for example, addition-and the two numbers being held in the memory unit and performs the operation on the two numbers. A full adder does the addition, and the result goes to the decoder in the calculator's microchip. This code is then sent to the liquid crystal display unit, which shows the result, or output, of the calculation.

In what part of the calculator are the processing and memory units?

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Earth is the only place we know of in the universe that can support human life. (33) ______ human activities are making the planet less fit to live on. As the western world carries on consuming (34)_______ of the world's resources while half of the world's population do so just to stay (35)_______ we are rapidly destroying the only resource we have (36)________ which all people can survive and prosper. Everywhere fertile soil is (37)______ built on or washed into the sea. Renewable resources are exploited so much that they will never be able to recover (38)______. We discharge pollutants into the atmosphere without any thought of the consequences. As a (39)______, the planet's ability to support people is being reduced at the very time when rising human numbers and consumption are making increasingly heavy demands on it. The Earth's (40)______ resources are there for us to use. We need food, water, air, energy, medicines, warmth, shelter and minerals to (41)______ us fed, comfortable, healthy and active. If we are sensible in how we use the resources they will last indefinitely. But if we use them wastefully and excessively they will soon (42)_______ and everyone will suffer

Read and complete the following passage.

"Language is the most important cultureal identifier (1)_____ it allows me to communicate with my family and community. Other reasons that make language the most important cultural identifier. Firstly, language helps us communicate, express our thoughts, and (2)______ our feelings with other people.(3)______ language, we can hardly understand one another on a deep level.Secondly, most essential information about a nation is written in its (4)_______ language.Thus, (5)_____ we don't master a language, it is hard for us to know its culture."

 Firstly, language helps us communicate, express our thoughts, and (2)______ our feelings with other people.

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The reality of an interview is never as bad as your fears. For some reasons, people imagine the interview is going to jump on every tiny mistake they (1) _____. In truth, the interviewer is as keen for the meeting to go well (2) _____ you are. It is what makes his or her job (3) ______. The secret of a good interview is preparing for it.What you wear is always important as it creates the first impression. So (4) _____ neatly, but comfortably. Make (5)______ 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 anurse? What is the most important (6) ______ a good nurse should have? Apart from nursing, what other careers have you (7) ______? What are your interests and hobbies? Answer the questions fully and precise. For instance, if one of your interests is reading, be prepared to talk about the sort of books you like. (8)_____, do not learn all the answers off by heart. The interviewer wants to meet a human (9) ____, not a robot. Remember, the interviewer is genuinely interested in you, so the more you relax and are yourself, the more (10) ____you are to succeed

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
The history of clinic nutrition, or the study of the relationship between health and how the body takes in and utilizers food substances, can be divided into four distinct eras: the first began in the nineteenth century and extended into the early twentieth century when it was recognized for the first time that food contained constituents that were essential agents. Near the end of this era, research studies demonstrated that rapid weight loss was associated with nitrogen imbalance and could only be rectified by providing adequate protein associate with certain foods.
The second era was initiated in the early decades of the twentieth century and might be called "the vitamin period". Vitamins came to be recognized in foods, endeficiency syndromes were described. As vitamins became recognized as essential food constituents necessary for health, it became tempting to suggest that every disease and condition for which there had been no previous effective treatment might be responsive to vitamin therapy. At the point in time, medical schools started to become more interested in having their curricula integrate nutritional therapies in medicine. Reckless claims were made for effects of vitamins that went far beyond what could actually be achieved from the use of them.
In the third era of nutritional history in the early 1950's to mid-1960's, vitamin therapy began to fall into disrepute. Concomitant with this, nutrition education in medical schools also became less popular. It was just a decade before this that many drug companies had found their vitamins sales skyrocketing and were quick to supply practicing physicians with generous samples of vitamins and literature extolling the virtue of supplementation for a variety health-related conditions. Expectations as to the success of vitamins in disease control were exaggerated. As is known in retrospect, vitamin and mineral therapies are much less effective when applied to health-crisis conditions that when applied to long-term problems of nutrition that lead chronic health problem.

The word "skyrocketing" is closest meaning to     .

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Few people now question the reality of global warming and its effects on the worlds climate. Mary scientists (1) ________ the blame for recent natural disasters on the increase in the worlds temperatures and are convinced that, more than (2) ________ before, the Earth is at risk from the forces of the wind, rain and sun. (3) ________ to them, global warming is making extreme weather events, such as hurricanes and droughts, even more (4) ________ and causing sea levels all around the world to (5) ________ . Environmental groups are putting (6) ________ on govemments to take action to reduce the amount of carbon dioxide which is given (7) ________ by factories and power plants, thus attracking the problem at its source. They are in (8) ________ of more money being spent on research into solar, wind and wave energy devices, which could then replace existing power (9) ________ . Some scientists, (10) ________ , 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 result. Global I warming, it seems, is to stay

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Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (1)______ ecosystems. If there is too (2) ______ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that (3) ______ it may also die or move away. Some changes are good for ecosystems. Some pine forests need (4) ______ for the pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds (5)______. Polluting the air, soil, and water can harm ecosystems. Building (6) ______ on rivers for electric power and irrigation can harm ecosystems (7) ______ the rivers. Bulldozing wetlands and cutting down (8) ______ destroy ecosystems. Ecologists are working with companies and governments to find better ways of (9) ______ fish, cutting down trees, and building dams. They are looking for ways to get food, lumber, and other products for people (10)______ causing harm to ecosystems

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In their attempt to ensure higher (1)……., TV producers have developed a whole new breed of programmes (2)……. real people. In Europe the most famous of these (3)……… reality TV shows was probably Big Brothers, where 12 ordinary people volunteered to live under the watchful eye of TV cameras 24 hours a day. In America, the top show was Survivor, based on a similar concept, in which 16 constants are abandoned on a desert island. But the ultimate example of the (4)………… must surely be The Osbournes, first(5)…….on MTV in 2002, in which the homelife of rock star Ozzy Osbourne and his family was laid bare to public scrutiny. Obsourne himself was already a(6)……name as the former lead singer of the highly successful heavy-metal group, Black Sabbath, The show was described as a real-life sitcom because it(7)………light on Ozzy‘s softe, more humorous side. It revealed his (8)…………….. to his teenage kids, even though he was often heard yelling and (9) ……….at them. The programme (10) ……………millions for the Osbourne family and certainly blurred the boundaries between reality and television

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All plants rely on nutrients taken from the soil in order to survive. However, in areas where the soil does not contain enough (1)_____ nutrients, some plants have adapted to (2) _____ their diets from another source: living organisms. Though they are few in number, carnivorous plants are (3)_____ fascinating beings that ―eat‖ anything from onecelled organisms to insects in order to survive. They are commonly found in marshlands. Carnivorous plants feature one of several types of ―traps‖ to ensnare prey, which they consume to make up for nutrients that may be missing from the soil. While there are over 400 species of carnivorous plants in the world today, some are more (4)_____ than others. The most well-known of these plants are the snap traps, which include the Venus flytrap. Snap traps are easily identified by their leaves, which are separated into two lobes that have the ability to fold together. Inside the lobes, the surface is covered with tiny hairs that are (5) _____ to movement. When the plant‘s prey brushes against the hairs, it triggers a closing mechanism that rapidly brings the two lobes together, trapping the prey (6)_____ inside. The response of the traps is phenomenal (7)_____ speed: the time between triggering the hairs and snapping shut is less than a second. As the prey struggles inside the trap, it only triggers more hairs, causing the leaves to tighten their (8) _____. The plant then secrets liquid chemicals from special glands into the trap to dissolve the prey and absorb all of its nutrients. Besides the Venus flytrap, only one other type of snap trap exists today, (9)_____ to as the waterwheel plant. The two share a common ancestor and differ only in a few ways. For instance, the waterwheel is an aquatic plant, while the flytrap is exclusively terrestrial. In addition, the flytrap feeds primarily on arthropods like spiders, while the waterwheel lives (10)_____ simple invertebrates, like certain types of plankton

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the blanks.
The wind controls our planet's weather and climate. But how much do we understand about this complex force (1).................. can kill and spread fear? On the night of October 15, 1987, the south of England was struck by strong winds. Gusts of over 130 km/h (2)................... through the region. Nineteen people were killed, £1.5-billion worth of damage was (3)....... and 19 million trees were blown down in just a few hours. Although people thought of this as a hurricane, the winds of 1987 were only a (4)............ 7 storm. They remain far better known than the much more serious storms of January 25, 1990, when most of Britain was hit by daytime winds of up to 173 km/h. On this occasion, 47 people were killed, even though, (5)........ in 1987, the weather forecasters issued accurate warnings.

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

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Higher Education in the UK Students who have successfully completed an A-level course may go to university to do (1)_____ three- or four-year course leading to a first degree such as Bachelor of Arts (BA), Bachelor of Science (BSc), etc. They apply to several universities which then (2)_____ an offer of a place specifying the minimum grades the student needs to obtain in the A level subjects studied. Higher education is not (3)_____. In principle, students have to pay a contribution to the cost of teaching (tuition fees) and have also to pay their living costs (maintenance). The government provides (4)_____ to help them pay for university education which have to be paid back from earnings once their income reaches a certain (5)_____. In recent years government policy has been to (6)_____ the percentage of 18-year olds (7)_____ go to university, which is now, at 40%, double the 1990 figure, but this growth has been at the (8)______ of the amount of financial support given to individual students. Universities receive money (9)_____ the state for each student and are responsible for employing staff and deciding which courses to offer. The head of a university, who is (10)_____ for its management, is called a vice-chancellor.

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Mobile phones emit microwave radio emissions. Researchers are questioning whether exposure to these radio waves might (36) _______ to brain cancer. So far, the data are not conclusive. The scientific evidence does not (37) _______ us to say with certainly that mobile phones are categorically (38) _______. On the other hand, current research has not yet (39) _______ clear adverse effect associated with the prolonged use of mobile phones Numerous studies are now going (40) _______ in various countries. Some of the results are contradictory but others have shown an association between mobile phone use and cancer. (41) _______, these studies are preliminary and the issue needs further, long - term investigation. (42) _______ the scientific data is more definite, it is prudent for people to try not to use mobile phone for long (43) _______ of time. Don't think that hands free phones are any safer either. At the moment, research is in fact showing the (44) _______ and they may be just as dangerous. It is also thought that young people (45) _______ bodies are still growing may be at particular risk

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Almost everyone says that computers are wonderful and that they are (35)...... our lives for the better by making everything faster and more reliable, but I am not so sure that this is the (36)....... .The other day I was standing in a large department store waiting to pay for a couple of films for my camera (37)..... t he assistant announced that the computer which controlled the till (38)........ working. I did not think this was a big problem and I (39)....... to find another counter, but of course, all the machines are part of the same system. So there we were: a shop full of customers, money at the ready, waiting to (40)....... our purchases, but it was quite clear that none of the assistants knew what to do. They were not allowed to take our money and give to customers a written(41)........ ,because the sales wouldn‟t then have been recorded on the computer system. In the end,(42).......... many other people, I left my shopping on the counter and walked out .Don't you think so that's ridiculous? It (43).......... never have happened before computers, and that, for me, is the problem: we are beginning to depend on these machines so completely that we (44).......... cannot manage without them anymore

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
A folk culture is small, isolated, cohesive, conservative, nearly self-sufficient group that is homogeneous in custom and race, with a strong family or clan structure and highly developed rituals.
Order is maintained through sanctions based in the religion or family, and interpersonal relationships are strong. Tradition is paramount, and change comes infrequently and slowly. There is relatively little division of labor into specialized duties. Rather, each person is expected to perform a great variety of tasks, though duties may differ between the sexes. Most goods are handmade, and a subsistence economy prevails. Individualism is weakly developed in folk cultures, as are social classes. Unaltered folk cultures no longer exist in industrialized countries such as the United States and Canada. Perhaps the nearest modern equivalent in Anglo-America is the Amish, a German American farming sect that largely renounces the products and labor saving devices of the industrial age. In Amish areas, horse-drawn buggies till serve as a local transportation device, and the faithful are not permitted to own automobiles.
The Amish’s central religious concept of Demut, “humility”, clearly reflects the weakness of individualism and social class so typical of folk cultures, and there is a corresponding strength of Amish group identity. Rarely do the Amish marry outside their sect. The religion, a variety of the Mennonite faith, provides the principal mechanism for maintaining order.
By contrast, a popular culture is a large heterogeneous group, often highly individualistic and constantly changing. Relationships tend to be impersonal, and a pronounced division of labor exists, leading to the establishment of many specialized professions. Secular institutions, of control such as the police and army take the place of religion and family in maintaining order, and a money-based economy prevails. Because of these contrasts, “popular” may be viewed as clearly different from “folk”.
The popular is replacing the folk in industrialized countries and in many developing nations, Folk- made objects give way to their popular equivalent, usually because the popular item is more quickly or cheaply produced, is easier or time saving to use, or lends more prestige to the owner.

Which of the following is typical of folk cultures?

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The Thames is the longest and best-known river in Britain. It is 210 miles/338 kilometres ___(1)___ and flows from the Cotswolds in central England to the North Sea after through London. Other famous towns on the river ___(2)___ Oxford, Windsor 1, Henley and Greenwich. ___(3)___ bridges across the Thames in London are London Bridge, Tower Bridge and Westminster Bridge. Large ships can sail ___(4)___ the Thames ___(5)___ London and smaller ones a further 86 miles/138 kilometres. A large area in the east of London was formerly a major port on the river, but in recent times this Docklands area has been___(6)___. The Thames Barrier is a large barrier ___(7)___ across the River Thames at Woolwich, east of London, to prevent London from being flooded. It was completed in 1982 and ___(8) ___ opened in 1984. It consists of ten gates, which ___(9)___ on the bottom of the river when the barrier is not required. If there is a danger of flooding, the gates rise to form a solid ___(10)___ 50 feet/15 metres high

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My younger sister is a potential star of state and screen, or at least that's what she tells me. Last week she had an interview. It was for the (38)……………..of Juliet in Shakespear‘s Romeo and Juliet. It went well and she starts (39)……………..next week. This is the first play that she has been in, but she has done quite a lot of TV advertising work and she has been in a couple of films. The last film she was in was called The magician. It was set in ancient Egypt and she was in a crowd (40)……………..with thousands of other people When I went to see it, I sat in the front (41)…………….. so that I could see the (42)…………….. really clearly, but I couldn‘t pick out my sister in the crowd. She says the (43)……………..was one of the best professionals she has worked with but I must say the (44)……………..seemed a bit stupid to me. It was all about a very clever magician who had managed to travel back through time to the Court of Tutankhamen. The (45)……………..were magnificent and so were some of the sets but having an actor saying (46)……………..in present day American English just didn‘t work. The ending was really ridiculous. The magician got accidentally buried with Tutankhamen. Funnily enough, the rest of the (47)……………..seemed to have rather enjoyed the film

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Interpreting the feelings of other people is not always easy, as we all know, and we (1) __ _ as much on what they seem to be telling us, as on the actual words they say. Facial (2) _ _ and tone of voice are obvious ways of showing our (3) _ _ to something, and it may well be that we unconsciously express views that we are trying to hide. The art of being (4) __ _ lies in picking up these signals, realizing what the other person is trying to say, and acting so that they are not embarrassed in any way. For example, we may understand that they are in fact (5) __ __ to answer our question, and so we stop pressing them. Body movements in general may also indicate feelings, and interviewers often pay particular attention to the way a candidate for a job walks into the room and sits down. However it is not difficult to present the right kind of appearance while what many employers want to know relates to the candidate‘s character traits, and (6) __ __ stability. This raises the awkward question of whether job candidates should be asked to complete psychological tests, and the further problem of whether such tests actually produce (7) __ __ results. For many people, being asked to take part in such a test would be an objectionable (8) __ _ into their private lives. After all, a prospective employer would hardly ask a candidate to run a hundred meters, or expect his or her family doctor to provide (9) _ _ medical information. Quite apart from this problem, can such tests predict whether a person is likely to be a (10) __ __ employee or a valued colleague?

Read the following passage and then choose the best answer.

When people plan to marry, they expect to find in their partner not only a lover but a friend also. They find a person with whom they can share their opinions, their emotions, thoughts and fears. In marriage we are looking for a partner who will be able to understand our values, our likes and dislikes.

If a man and a woman are born and raised in the same country, most likely they are familiar with the same songs, movies, jokes, books and life in general. They basically have the same roots. In the case of a western man and foreign woman family everything is more complicated and requires much more patience and understanding from both spouses. On one hand each of the partners has an opportunity to learn a great deal about the other's country, culture, traditions and life styles which can be very interesting. On the other hand it can be very disappointing if there is the inability to understand your partner's excitements and frustrations. For example, you are watching the television and suddenly you see a famous actor or singer, or other type of an artist whose name you have grown up with. Maybe this artist was an idol for your parents and the music of this artist was often played in your house when you were a child. Unfortunately you realize that your wife is unable to understand your feelings because she has no idea who this artist is. Her eyes are absolutely empty because she has never even heard the song before. You feel rather disappointed! Remember that your wife has the same situation with you. You do not know her country's songs, her country's famous actors, her books. She has her own memories and in actuality, for her, everything is much more difficult than it is for you. At least, you live in your own country where everybody can understand you. She lives in completely strange surroundings, where she has nobody to share her feelings with, except you.

Do some research and learn about your wife's country, culture and lifestyles. Talk with her, ask her questions, get to know what songs she likes, what movies and books are of interest to her. The Internet will give you a great opportunity to find anything! Tell her about your country's culture, let her listen to the music that you like, rent a movie for her that left you with great impression. Let her understand you better through the things that you like. Patience and time will help you to fight cultural differences.

 If there is the inability to understand a spouse's excitements and frustrations the marriage, he or she may feel ………….