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     In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion. 

     A useful theory, in addition to explaining past observations, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists' predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be revised or rejected. 

     Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: "Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house." 

          Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses. In a way, any hypothesis is a leap into the unknown. It extends the scientist's thinking beyond the known facts. The scientist plans experiments, performs calculations and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories

In the fourth paragraph, the author implies that imagination is most important to scientists when they ________ 

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_______ a scholarship, I entered the frightening and unknown territory of private education

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 following questions. 

High maths abilities, bad school lives

     Teachers first noticed Cameron Thompson's talent for numbers when he was four years old and at pre- school. Throughout primary school, Cameron Thompson's best subject was maths. Then, when he was eleven, he took a maths test prior to entering secondary school. The test was out of 140; Cameron scored 141. 'I broke the system,' he recalls. 

     Since then, he has continued to progress quickly. He passed two GCSEs (maths and further maths) at the age of eleven, and then got the highest grade in his maths A-level before the end of that same academic year.  He is now fourteen years old and studying for a degree in maths; a remarkable achievement bearing in mind his age. 

     But his academic achievements have not always been matched by social success. ‘I have the social ability of a talking potato,’ he admits. In other words, he feels more at ease with numbers than among other teenagers. 'Most people my age do despise me. I've been like this for years.' 

     Communication is not one of Cameron's strong points and, aside from the problems this causes socially, it is now beginning to affect his marks in mathematics. This is because at undergraduate level, he is expected to give reasons for his answers alongside the answers themselves. Cameron's difficulty is that he often doesn't know how he has arrived at the answers, even though the answers are usually correct. Cameron and his family have recently moved house and Cameron is due to start at a new school. He regards it as a chance to make a fresh start and make some friends. But his mother, Alison, has a few worries concerning his lack of social skills. While she describes Cameron as 'very sensitive', she also acknowledges that he is socially naive and often oblivious to signals from other people. 

     The new school specialises in dealing with students who, like Cameron, excel academically but find it difficult to relate to other students. And indeed, on his first day, Cameron did make a new friend – a boy called Tim - mainly owing to a shared dislike of Justin Bieber's music. 

     Recently, a maths professor from Cambridge University has been looking at Cameron's work. His advice to Cameron is perhaps surprising. Professor Imre Leader thinks Cameron should slow down, stop taking maths exams, and wait until he is eighteen before doing a degree. "There's quite an important distinction” he explains, “between taking lots of exams as fast as you can, and relaxing and enjoying the level that you are at- what we call enrichment”, Professor Leader believes Cameron will do better in the long run if he stops trying to progress so quickly. And although Cameron does not want to finish his current degree, he isn't making any academic plans beyond that. He goes to a weekly karate class after school. And recently, he went to a computer games convention with some friends from karate. 

     Since turning fourteen, Cameron's feelings towards girls have changed. As he puts it, “I started to like them instead of being disgusted by them.' He's even been on a first date - without his parents. And in general, he feels less isolated and unusual than he did before. 'There are other people like me - high maths abilities, bad school lives - I am not alone - Spooky.' 

Between the ages of four and ten, Cameron _______ 

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Tim read articles about the company very carefully. He then was able to answer all interview questions

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Capital punishment aims to hinder people from committing such crimes.

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Much as George loved travelling in Asia, he decided not to go to Indonesia because of his fears of terrorism

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. 

Have you ever thought about the impact your name has on the way others perceive you? A recent study by Dr Simon Laham from the University of Melbourne and Dr Adam Alter from New York University Stern Business School reveals that people with easy to pronounce" names tend to be (1)…. more positively than those with "difficult to pronounce" names. The researchers found that people with more easily pronounceable names were more likely to be (2)….. upon favourably for political office, and that lawyers with easier sounding names made their way up the career (3)…... faster. Surnames from a wide range of nationalities were used in the study, and researches stressed that preferences were not (4)…... due to the  length of a name or how unusual it was, but rather how easy it was to say. Dr Laham believes the research highlights the kind of (5)….. that our everyday thinking is subject to

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The building contractor wants this work to be finished soon. We have been working to a strict deadline

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions

He was a bit behind at the beginning of term, but on the whole he has put up a good show

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As I liked your photo, I had it _______. 

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Today is _______ hot in the burning sun of summer

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. 

Have you ever thought about the impact your name has on the way others perceive you? A recent study by Dr Simon Laham from the University of Melbourne and Dr Adam Alter from New York University Stern Business School reveals that people with easy to pronounce" names tend to be (1)…. more positively than those with "difficult to pronounce" names. The researchers found that people with more easily pronounceable names were more likely to be (2)….. upon favourably for political office, and that lawyers with easier sounding names made their way up the career (3)…... faster. Surnames from a wide range of nationalities were used in the study, and researches stressed that preferences were not (4)…... due to the  length of a name or how unusual it was, but rather how easy it was to say. Dr Laham believes the research highlights the kind of (5)….. that our everyday thinking is subject to

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______ we invested in telecommunication industry, we would be rich by now.

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My advice to you is to write a list of all the tasks you have to do and prioritise them.

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: It's a pity that you didn't tell us about this