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:
It’s a sound you will probably never hear, a sickened tree sending out a distress signal. But a group of scientists has heard the cries, and they think some insects also hear the trees and are drawn to them like vulture to a dying animal. Researchers with the US Department of Agriculture’s Forest Service fastened sensors to the bark of drought-stricken trees clearly heard distress calls. According to one of the scientists, most parched trees transmit their plight in the 50-hertz to 50-kilohertz range. (The unaided human ear can detect no more than 20 kilohertz). Red oak, maple, white pine, and birch all make slightly different sounds in the form of vibrations at the surface of the wood.
The scientists think that the vibrations are created when the water columns inside tubes that run along the length of the tree break, a result of too little water following through them. These fractured columns send out distinctive vibration pattems. Because some insects communicate at ultrasonic frequencies, they may pick up the trees' vibration and attack the weakened trees. Researchers are now running tests with potted trees that have been deprived of water to see if the sound is what attracts the insects. “Water-stressed trees also smell differently from other trees, and they experience thermal changes, so insects could be responding to something other than sound”, one scientist said.

Which of the following is the main topic of the passage?

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Around 200 million people are employed in tourism worldwide, making it the largest industry in the modern global economy. It is estimated that three-quarters of a billion people (35)___________ on holiday each year, and industry planners expect this figure to double by 2020. Some of the biggest beneficiaries are less developed countries, (36)___________it is often their main source of income. (37)_________________, along with the economic benefits, this mass movement of people has resulted in threats (38)_____________ the environment. People often forget the damage caused by carbon dioxide emissions from aircraft, which (39) ______________ directly to global warming. Deforestation has cleared land in order to build hotels, airport and roads, and this has destroyed wildlife. In some areas, water shortages are now common (40)_____________of the need to fill swimming pools and water golf courses for tourists. By pushing up prices for goods and services, tourism can also be (41)______________ to the people who live in tourist destinations. In response to these concerns, some travel operators now offer environmental friendly holidays. Many of these aim to reduce the negative (42)____________ of tourism by promoting only hotels that have invested equipment to recycle waste and use energy and water efficiently. Increasingly, tourists are also being reminded to show respect (43)______________ the customs of the people (44) ______________countries they are going to visit, and to support local businesses, such as restaurants and shops, which depend on tourism for their main income

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When you read something in a foreign language, you frequently come across words you do not (45)______ understand. Sometimes you (46)______ the meaning in a dictionary and sometimes you guess. The strategy you adopt depends very much upon the (47)______of accuracy you require and the time at your disposal. If you are the sort of person who tends to turn to the dictionary frequently, it is (48)_______remembering that every dictionary has its limitations. Each definition is only an approximation and one builds up an accurate picture of the meaning of a word only after meeting it in a (49)__________of contexts. It is also important to recognize the special dangers of dictionaries that translate from English into your native language and vice versa. If you must use a dictionary, it is usually far safer to (50)________an English- English dictionary. When you read something in a foreign language, you frequently come across words you do not (45)______ understand. Sometimes you (46)______ the meaning in a dictionary and sometimes you guess. The strategy you adopt depends very much upon the (47)______of accuracy you require and the time at your disposal. If you are the sort of person who tends to turn to the dictionary frequently, it is (48)_______remembering that every dictionary has its limitations. Each definition is only an approximation and one builds up an accurate picture of the meaning of a word only after meeting it in a (49)__________of contexts. It is also important to recognize the special dangers of dictionaries that translate from English into your native language and vice versa. If you must use a dictionary, it is usually far safer to (50)________an English- English dictionary

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Around 200 million people are employed in tourism worldwide, making it the largest industry in the modern global economy. It is estimated that three-quarters of a billion people (35)___________ on holiday each year, and industry planners expect this figure to double by 2020. Some of the biggest beneficiaries are less developed countries, (36)___________it is often their main source of income. (37)_________________, along with the economic benefits, this mass movement of people has resulted in threats (38)_____________ the environment. People often forget the damage caused by carbon dioxide emissions from aircraft, which (39) ______________ directly to global warming. Deforestation has cleared land in order to build hotels, airport and roads, and this has destroyed wildlife. In some areas, water shortages are now common (40)_____________of the need to fill swimming pools and water golf courses for tourists. By pushing up prices for goods and services, tourism can also be (41)______________ to the people who live in tourist destinations. In response to these concerns, some travel operators now offer environmental friendly holidays. Many of these aim to reduce the negative (42)____________ of tourism by promoting only hotels that have invested equipment to recycle waste and use energy and water efficiently. Increasingly, tourists are also being reminded to show respect (43)______________ the customs of the people (44) ______________countries they are going to visit, and to support local businesses, such as restaurants and shops, which depend on tourism for their main income

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The latest addiction to trap thousands of people is Internet, which has been (1) ............... for broken relationships, job losses, finacial ruin and even one suicide. Psychologists now recognize Internet Addiction Syndrome (IAS) as a new illness that could (2) ................... serious problems and ruin many lives. Special help groups have been set up to (3) .................. sufferers help and support. IAS is similar to (4) ................... problems like gambling, smoking and drinking : addicts have dreams about Internet; they need to use it first thing in the morning; they (5) ............... to their partners about how much time they spend online; they (6) .................. they could cut down, but are unable to do so . A recent study found that many users spend up to 6 hours a week on the Internet; (7) .................... they felt guilty, they became depressed if they were (8) ................... to stop using it. Almost anyone can be at risk. Some of the addicts are teenagers who are already hooked on computer games and who (9) .................... it very difficult to resist the games on the Internet. Surprisingly, however, psychologists (10) .................. that most victims are middle-aged housewives who have never used a computer before.

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When you read something in a foreign language, you frequently come across words you do not (45)______ understand. Sometimes you (46)______ the meaning in a dictionary and sometimes you guess. The strategy you adopt depends very much upon the (47)______of accuracy you require and the time at your disposal. If you are the sort of person who tends to turn to the dictionary frequently, it is (48)_______remembering that every dictionary has its limitations. Each definition is only an approximation and one builds up an accurate picture of the meaning of a word only after meeting it in a (49)__________of contexts. It is also important to recognize the special dangers of dictionaries that translate from English into your native language and vice versa. If you must use a dictionary, it is usually far safer to (50)________an English- English dictionary. When you read something in a foreign language, you frequently come across words you do not (45)______ understand. Sometimes you (46)______ the meaning in a dictionary and sometimes you guess. The strategy you adopt depends very much upon the (47)______of accuracy you require and the time at your disposal. If you are the sort of person who tends to turn to the dictionary frequently, it is (48)_______remembering that every dictionary has its limitations. Each definition is only an approximation and one builds up an accurate picture of the meaning of a word only after meeting it in a (49)__________of contexts. It is also important to recognize the special dangers of dictionaries that translate from English into your native language and vice versa. If you must use a dictionary, it is usually far safer to (50)________an English- English dictionary

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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

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Hypatia was born in Alexandria, in Egypt, in 370 A.D. For many centuries, she was (16) only woman scientist to have a place in the history books. Hypatia's father was director of Alexandria University, and he (17) sure his daughter had the best education available. This was unusual, as most women then had few (18) to study. After studying in Athens and Rome, Hypatia returned to Alexandria (19) she began teaching mathematics. She soon became famous (20) her knowledge of new ideas. We have no copies of her book, (21) we know that she wrote several important mathematical works. Hypatia was also interested in technology and (22) several scientific tools to help with her work. At the (23) , many rulers were afraid of science, and (24) connected with it was in danger. One day in March 415, Hypatia (25) attacked in the street and killed

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:
Horace Pippin, as an African-American soldier during World War I, was wounded in his right arm. He discovered, however, that by keeping his right wrist steady with his left hand, he could paint and draw. Pippin was not trained, but his artistic sensitivity and intuitive feel for two- dimensional design and the arrangement of colour and patterns made him one of the finest Primitive artists America has produced.
Pippin did a series of paintings on the abolitionist John Brown and one on his war experiences, but he shied away from social issues for the most part and achieved his greatest success with scenes of the people and places of his hometown of West Chester, Pennsylvania. His Domino Players, featuring four women gathered around a wooden table in a simple kitchen setting, is an excellent example of his rural domestic scenes.

The word “arrangement” in line 5 could best be replaced by which of the following?

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From the seeds themselves to the machinery, fertilizers and pesticides –The Green Revolution regimen depends heavily on technology. One (1)_____, however , depends much(2)_________on technology – organic farming . Many organic farmers use machinery, but (3)_____chemical fertilizers or pesticides .(4)______chemical soil enriches , they use animal manure and plant part not used as food – natural , organic fertilizers that are clearly a renewable (5)_____.Organic farmers also use alternatives (6)_____pesticides ; for example they many rely on natural predators of certain insect pets.(7)___ the need arises ; they can buy the eggs and larvae of these natural predators and introduce them into their crop fields . They use(8)_____techniques to control pests as well , like planting certain crops together because one crop repels the other‘s pests . Organic farmers do not need a lot of land ; (9)_____, organic farming is perfectly (10)_____to small farm and is relatively inexpensive .Finally , many organic farmers‘ average yields compare favorably with other farmers‘ yields

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A recent issue of a language learning magazine has consulted a number of experts in the (1)________ of second language acquisition. Their advice may prove invaluable for those (2)______ a language course. One suggestion is that you (3)______whether you are likely to be successful at learning a language or not. Did you enjoy studying languages at school, for example? Do you have enough time to learn a language? The main (4)______will be your own time and effort. Therefore you must make sure that the course on offer leads to a (5)______qualification. Also, be realistic in your (6)______. If you don't set achievable aims you are more likely to give up. Do not be deceived (7)______thinking that the most expensive courses are the best. (8)______around to get the best possible value for money. You should also bear in mind that the quicker you learn a language the more quickly you forget it. Sandra Miller, a French teacher, tried to teach herself German by enrolling on a (9)______ course. Already fluent in four languages and with a sound knowledge of teaching methodology her chances of (10)______progress were high. Three years on she remembers very little. She feels her biggest mistake was not to build on her previous studies. "I should have consolidated what I'd learnt by continuing to study, even if it were by myself."

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Market research has become more and more important in recent years. In some organizations, in fact, managers will not initiate any activity without market research to back them up. The first thing to be said about market research is that it is not an (1)___ to management decision making. No form of market research, no matter how deep, complicated and detailed, can ever be seen as a substitute (2)_____ creative decisionmaking by professional managers. At its very best, all it can do is (3) _____ some doubt and clarify the nature of the problem. It may even be seen as a tool which can improve the (4)_____ of decisions but it is not in itself a decision-making mechanism. Market research, in (5)_____ with a number of other approaches in marketing, suffers from the frequent (6)_____ that it is not really accurate. Market research results can never be completely accurate because they (7)____with a dynamic, ever-changing marketplace. It is vital that this is understood by everyone with an imagination when considering market research results and when making any (8)____ to apply them in the marketplace. Lastly, it should always be remembered that market research is not an end in itself but simply a (9) _____ by which some degrees of risk can be removed from marketplace activity. If no activity results from the research, then the entire exercise has been completely (10)_____

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It can (45) _________along time to become successful in your chosen field, however talented you are. One thing you have to be (46) _________ of is that you will face criticism along the way. The world is full of people who would rather say something negative than positive. If you‘ve made up your (47) _________ to achieve a certain goal, such as writing a novel, don‘t let the negative criticism of others prevent you from reaching your (48)_________ and let constructive criticism have a positive (49) _________ on your work. If someone says you‘re totally (50) _________ in talent, ignore them. That‘s negative criticism. If, however, someone advises you to revise your work and gives you good reasons for doing so, you should (51) _________ their suggestions carefully. There are many film stars who were once out of (52) _________. There are many famous novelists who made a complete (53) _________ of their first novel - or who didn‘t, but had to keep on approaching hundreds of publishers before they could get it published. Being successful does depend on luck, to a certain extent. But things are more likely to (54) _________ well if you persevere and stay positive

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Parents whose children show a special interest in a particular sport have a difficult decision to (1) ______ about their children‘s career. Should they (2) ______ their children to train to become top sportsmen and women? For many children it (3) ______starting very young and school work, going out with friends and other (4) ______ have to take second place. It‘s very difficult to explain to a young child why he or she has to train for five hours a day, even at the weekend, when (5) _______ of his or her friends are playing. Another problem is of course money. In many countries money for training is (6) ______ from the government for the very best young sportsmen and women. If this help cannot be given, it means that it is the parents (7) ______ have to find the time and the money to support their child‘s development- and sports clothes, transport to competitions, special equipment etc. can all be very expensive. Many parents are understandably (8) _______ that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young (9) _______ may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by starting young that you can reach the top as a successful sports person. What is clear is that very (10) _______ people reach the top and both parents and children should be prepared for failure even after many years of training

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Most Americans eat three meals (40) ______ the day: breakfast, lunch, and dinner. Breakfast begins between 7:00 and 8:00am, lunch between 11:00 am and noon, and dinner between 6:00 and 8:00 pm. On Sundays "brunch" is a (41) ______ of breakfast and lunch, typically beginning at 11:00 am. Students often enjoy a "study break" or evening snack around 10:00 or 11:00 pm. Breakfast and lunch tend to be light meals, with only one (42) ______. Dinner is the main meal. (43) ______ breakfast Americans will eat cereal with milk which are often mixed (44) ______ in a bowl, a glass of orange juice, and toasted bread or muffin with jam, butter, or margarine. Another common breakfast meal is scrambled eggs or (45) ______ omelet with potatoes and breakfast meat (bacon or sausage). People who are on (46) ______ eat just a cup of yogurt. Lunch and dinner are more (47) ______. When eating at a formal dinner, you may be overwhelmed by the number of utensils. How do you (48) ______ the difference between a salad fork, a butter fork, and a dessert fork? Most Americans do not know the answer (49) ______ But knowing which fork or spoon to use first is simple: use the outermost utensils first and the utensils closest to the plate last

Population in big cities

A United Nations report on world population trends has provided some interesting information for thought on the future demographics of our planet. The world’s population is currently 6.5 billion and is set (1) ________ and level off to about 9 billion people. The report says population explosions will occur in Africa and Asia, but not in the (2) _________ of the world, “Considerable diversity exists in the expected population growth of countries. The population of many countries, (3) __________ in Africa and Asia, will increase greatly in the coming decades.”  (4)___________, population levels in developed countries are expected to fall, because of decreased fertility rates caused by increased contraceptive use. The report also indicates half of the world’s population will be city (5) _________ by 2007. That is a huge jump from the figure of 30% urbanization in 1993. The five most populated cities today are Tokyo (35 million people), Mexico City (19 million), New York (18.5 million), Bombay (18.3 million) and Sao Paulo (18.3 million). In 1950 only Tokyo and New York had populations of more (6) _________ 10 million people. By 2050 there will be 22 cities of that size. The report concludes, “the current population picture is one of dynamic population changes, reflected in new and diverse patterns of childbearing, mortality, migration, urbanization and ageing. The (7) ___________ and consequences of these population trends present opportunities as well as (8) __________for all societies in the twenty-first century.”

(8) ________

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The reality of an interview is never as bad as your fears. For some (1) ______ people imagine the interviewer is going to jump on every tiny mistake they (2) ______. In fact, the interviewer is as keen for the meeting to go well as you are. It is what (3) ______ 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 (4) ______ neatly, but comfortably. Make (5) ______ that you can deal with anything you are (6) ______. 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 interests and hobbies? Answer the questions fully and precisely. For example, if one of your interests is reading, be prepared to (7) ______ about the sort of books you like. (8) ______, do not learn all your answers off (9) ______ 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 (10) ______ you are to succeed.

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The Thames Barrier is a major part of the flood defence scheme for protecting London (1) ____________ rising water levels. The defenses (2)___________ include raised river embankments and additional flood gates at strategic points, including the Barking Baưier. The unique structure that is the Barrier spans the 520-metre wide Woolwich reach and consists of 10 separate movable gates, each pivoting and supported between concrete structures which house the operating machinery. When raised, the four main gates (3) _____________ stand as high as a five-storey building and as (4) __________as the opening of Tower Bridge. Each (5) _____________ 3700 tonnes. During the first twelve years of (6) ______________________________________ , the Barrier has been closed twenty nine times to protect London. (7) __________ the Barrier from the comfortable Cafeteria. Picnic on the riverside embankment. Enjoy beautiful views from the riverside walk. Visit the shop which stocks a large selection of souvenirs, books and Barrier information. There is a children‘s play (8) _______ suitable for 4 – to 12-year olds, (9) __________ adjacent to the riverside walk. A visit to the spectacular Thames Barrier is a (10) ___________ experience.

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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:
"Memorize these words". "Learn this spelling rule". "Don't forget about the quiz tomorrow".
You remember things every day, but how do you do it?
When you want to call a store or an office that you don't call often, you look in the telephone book for the number. You dial the number, and then you forget it! You use your short-term memory to remember the number. Your short-term memory lasts about 30 seconds, or half a minute. However, you don't need to look in the telephone book for your best friend’s number because you already know it. This information is in your long-term memory. Your long-term memory has everything that you remember through the years.
Why do you forget things sometimes? Is there a reason? Yes, there are several. The major reason for forgetting something is that you did not learn it well in the beginning. For example, you meet some new people, and right away, you forget their names. You hear the names but you do not learn them, so you forget them.
You can help yourself remember better. Here are some ideas:
Move information from your short-term memory to your long-term memory. You can do this if you practice the new information. Say it to yourself out loud. Think about it.
After you learn something, study it again and again. Learn it more than you need to. This process is called overlearning. For example, when you learn new words, practice using them in sentences. Don't try to memorize words from a list only.
Make sure that you understand new information. It is very difficult to remember something that you don't understand. Ask questions when you learn something new to be certain that you understand.
Do not listen to music or watch TV when you study. You will remember better if you concentrate on one thing at a time.
Try to connect new information with something that you already know. For example, when you learn the name of a new kind of food, think of a similar kind of food that you already know.
Divide new information into several parts (about five or six). Learn one part at time and stop for few minutes. Don't sit down and try to learn a very large amount of new information all at once.
Try to make a picture in your mind. For example, if you hear or see a new word, make a picture of how it looks to you in your mind. This “mental” picture will help you remember that word the next time you see or hear it.
Think of word clues to help you remember information. One very helpful kind of word clue is an acronym. An acronym is a word formed from the first letter of a group of words. For example, many American schoolchildren learn the names of the Great Lakes in the North America by remembering the word homes. Homes is an acronym that comes from the names of the Great Lakes: Huron, Ontario, Michigan, Erie, Superior.
Relax when you study! Try to enjoy yourself. You are learning new things every minute. You will remember better if you are happy and relaxed.

You move information from your short-term memory to your long-term memory when you     .

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A solid object that has the power to attract iron and some metals is called a magnet. It does this through its magnetic field, a region of force surrounding it. The (33) _____ the magnet, the more intense is the field. Objects that are attracted to the magnet feel a force (34) _____ as ―magnetism‖ when they are inside the magnetic field. This magnetic force can pass (35) _____ some materials. Even a weak magnet will attract a pin to the other side of a (36) ______ of paper, for example. Magnets come in (37) ______ shapes. A familiar one is the curved horseshoes magnet. There are also bar magnets in the form (38) _____ disc or a stubby cylinder. Every magnet has (39) ______ poles, called north and south, at opposite ends of it: at the two ends of a horseshoes magnet, for example, or on the two sides of a disc. Powerful magnets can be (40) _______ by passing an electric current through wire coiled around a piece of iron. The (41) _____ is called and electromagnet. Magnets are (42) ______ in many household and everyday devices. They are also commonly used in industrial machinery, usually in the form of electromagnets.