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The more important theorem of all in plane geometry is the Pythagorean Theorem.

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Even smallest pulley can be done stronger by adding wheels to its system to create more leverage

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Throughout history people have always communicated with one another, not only by speech but also by movements of the hands and body. It is, however, only (1) ______ the last few years that these aspects of communication have been studied at all widely. This type of communication is known as body language or non-verbal communication. People sometimes wonder (2) ______ you can learn how body language works. It is of course possible to read books on the subject but you also need to (3) ______ time observing people’s movements. A railway station is a particular good place for such observation, as here people can be seen openly expressing eagerness, sorrow, delight, impatience and many other human emotions by (4) _____ of movement. If you turn down the sound on your television set and try to understand (5) _____ is happening simply by watching the picture you will learn even more about communication (6) _____ words. By turning the sound back up every five (7) ______ or so, it is possible to check how accurate your (8) ______ is. Having studied the art of body language you will have a definite (9) ______ at a boring party. You will be able to sit on your own for the whole evening and thoroughly enjoy yourself by both watching (10) ______ interpreting the body language of all the other people there

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The UK Government ensures that all schools in the UK(1)_______ certain standards, and this includes independent schools as well as those that are  (2)_______ by the Government. All qualifications are awarded by national agencies accredited by the Qualification and Curriculum Authority (QCA), (3)_______ the quality of the qualifications you will gain is guaranteed. At many independent schools in England, you will be encouraged to take part (4)_______ extracurricular activities to develop your hobbies and learn new skills, and you may be encouraged to take graded music exams (5)_______ by the Associated Board of the Royal Schools of Music. The exam grades gained from these are widely accepted toward university entry  (6)_______. Independent schools do not usually offer vocationally focused qualifications but if you are (7)_______ in these qualifications, you can find out more in the 'career-based and pre-university qualifications' section. The (8)_______ you pay to attend independent school, include your course fees, accommodation and may include some or all extracurricular activities. Fees (9)_______ from school to school and are at the discretion of the institution; there are no national standards. You should expect to pay a minimum of £8,000 per year and fees can be (10)_______ high as £25,000

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THE DANGERS OF DIETING
Thanks to our modern lifestyle, with more and more time spent sitting down in front of computers than ever before, the (1)____ of overweight people is at a new high. As people frantically search for a solution (2)____ this problem, they often try some of the popular fad diets being offered. Many people see fad diets (3)____ harmless ways of losing weight, and they are grateful to have them. Unfortunately, not only don’t fad diets usually (4)____ the trick, they can actually be dangerous for your health. Although permanent weight loss is the (5)___, few are able to achieve it. Experts estimate that 95 percent of dieters return to their starting weight, or even (6)____ weight. While the reckless use of fad diets can bring some (7)____ result, long-term results are very rare. (8)____, people who are fed up with the difficulties of changing their eating habits often turn to fad diets. (9)____ being moderate, fad diets involve extreme dietary changes. They advises eating only one type of food, or they prohibit other types of foods entirely. This results in a situation (10)______ a person’s body doesn’t get all the vitamins and other things that it needs to stay healthy.

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To receive a degree from an American university, one must take many courses beside those in one’s major field.

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Mobile phones emit microwave radio emissions. Researchers are questioning whether exposure to these radio waves might (1) _______ to brain cancer. So far, the data are not conclusive. The scientific evidence does not (2) _______ us to say with certainly that mobile phones are categorically (3) _______. On the other hand, current research has not yet (4) _______ clear adverse effect associated with the prolonged use of mobile phones. Numerous studies are now going (5) _______ in various countries. Some of the results are contradictory but others have shown an association between mobile phone use and cancer. (6) _______, these studies are preliminary and the issue needs further, long - term investigation. (7) _______ the scientific data is more definite, it is prudent for people to try not to use mobile phone for long (8) _______ of time. Don't think that hands free phones are any safer either. At the moment, research is in fact showing the (9) _______ and they may be just as dangerous. It is also thought that young people (10) _______ bodies are still growing may be at particular risk

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(1) ….. educational specialists believe that early schooling should provide children (2) ….. an awareness of their own abilities (3) ….. the self – confidence (4) ….. their abilities. One approach recognized by many experts (5) ….. promoting these qualities is the Montessori method, first practiced by Maria Montessori of Italy (6) ….. the early 1900s. Nancy McCormick Rambusch is credited with (7) ….. the method in the United States, where today (8) ….. over 400 Montessori schools. The method helps children (9) ….. for themselves by providing them with instructional materials and tasks that facilitate acts of discovery and manipulation. Through such exploration, children develop their sense of touch and learn (10) ….. do everyday tasks without adult assistance. Other  benefits include improvement in language skills, and acquaintance with elements of science, music, and art

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Alike other forms of energy, natural gas may be used to heat homes, cook food, and even run automobiles.

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Earth, our beautiful home planet, is the only astronomical object to accommodate life as we know it. Scientists believe Earth was formed approximately 4.5 billion years ago. It is the fifth-largest planet in our solar system. Its equatorial diameter is about 12,074 kilometers. Earth is the third-closest planet to the sun. The distance from Earth to the sun is roughly 149,600,000 kilometers. It takes 365.3 days for Earth to orbit the sun, and 24 hours to rotate on its axis. The surface temperature ranges from -88 to 58°C. Nearly 70 percent of Earth’s surface is covered by ocean, which has an average depth of about 4 kilometers. In 2015 it was estimated that 7.3 billion humans are living on Earth.

In our solar system, ………….. planets are larger than Earth.

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Margaret Gorman, she was the first woman chosen as Miss America, died in 1995 at the age of ninety.

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What is a coincidence?
A coincidence is a surprising thing that happens to us. For example, you and a friend both go shopping on the same day. You don’t go together and don’t discuss your shopping plans in (1) ______, but when you meet up afterwards, you are amazed to discover that you’ve bought   an identical T-shirt. By (2) _________  , you each decided to buy the same one.  Many people (3)_______coincidences as significant. Did you and your friend communicate with each other in some subconscious way? What does it tell you about your friendship? Well, the simple (4) ________ could be that, being (5) _____friends, you have similar taste in clothes. In reality, life is (6) ________of coincidences, but normally we don’t notice them. For example,   in almost fifty percent of all football matches, two players share the same birthday. This seems surprising, (7) ________ that there are 365 possible birthdays in the year. But most of these matches will   be played without anybody being (8) _______ that coincidence exists. (9)________your birthday is today, you don’t generally tell people about it. In addition, without realising it, you probably (10) ______ into   contact with lots of people who were born on the same day as you. But when a coincidence brought to your attention, it still seems amazing

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Deep cratered, the moon is over 2100 miles in diameter with negligible gravity and atmosphere.

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Every day, he _________ his buffalo to his plot of land.

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There are thousands of different kinds of microbes. Microbes called bacteria are the smallest living things. Bacteria live almost everywhere: on land, in water, and even inside you. Some microscopic life forms are like plants. Tiny diatoms are microbes that live in lakes and the ocean. Diatoms soak up sunlight and use its energy to make food, just like plants.

Some microscopic life forms are more like animals. Protozoa such as the amoeba and paramecium are animal-like microorganisms. An amoeba can move by changing the shape of its body. It sticks out a pseudo pod, or false foot. A paramecium is covered with tiny hairs. It waves its hairs rapidly to swim.

Viruses are another kind of microbe. Viruses sometimes act like living things and other times act like nonliving things. Viruses sometimes live in the cells of plants and animals. Inside a cell, a virus reproduces like a living thing. The virus uses the cell to make many copies of itself. Viruses are too small to see with an ordinary microscope. You need a powerful electron microscope to see a virus. Outside of a plant or animal cell, a virus is like a nonliving thing.

 How can an amoeba move?

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The library at the university is new but has taken her name from the wife of the first president of the university.

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Animals live everywhere. They roam the land. They burrow in the ground. They swim in the sea. They fly through the air. They creep, they leap, they soar, and they dive. A very few – including corals and barnacles – stay in one place.

Animals come in all sizes. The biggest animals are whales, which can be 100 feet (30 meters) long. The smallest animals can only be seen through a microscope. Zoologists (scientists who study animals) have found more than 2 million species (kinds) of animals. They think they have discovered only a small portion of all animals on Earth.

Several things make animals different from other living things. Unlike plants, animals cannot make their own food. Animals eat other living things–plants and other animals–to get energy. Animal bodies are made up of more than one cell, unlike bacteria and other life forms with only one cell. Cells are the building blocks of living things. Animals also have senses, such as eyes or ears, that tell them what is going on around them.

There is no animal that stay in one place.

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Early writing and Alphabets
When people first began to write, they did not use an alphabet. Instead, they drew small pictures to (01) ______ the objects they were writing about. This was very slow because there was a different picture for (02) ______ word. The Ancient Egyptians had a (03) ______ of picture writing that was (04) ______ hieroglyphics. The meaning of this writing was forgotten for a very long time but in 1799 some scientists (05) ______ a stone near Alexandria, in Egypt. The stone had been there for (06) ______ a thousand years. It had both Greek and hieroglyphics on it and researchers were finally able to understand what the hieroglyphics meant. An alphabet is quite different (07) ______ picture writing. It (08) ______ of letters or symbols that represent a sound and each sound is just part of one word. The Phoenicians, (09) ______ lived about 3,000 years ago, developed the modern alphabets. It was later improved by the Roman’s and this alphabet is now used (10) ______ throughout the world

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GOING ON A DIET
A typical person needs about 1,800 calories per day to stay running.. They keep your organs operating (1)_______ and your brain running. They also keep your body warm. A person gains weight because he or she consumes more calories per day than (2) ________. The only way to lose fat is to reduce the (3) ________ of calories that you consume per day. This is the basic principle (4) ________ going on a diet. Unfortunately, diets don’t work for most people. They do lose weight but then go off the diet and put it back. Building a sensible diet and exercise plan is the key (5) ________ maintaining a consistent weight. You need to figure out how many calories you need in a day and how many you actually (6) ________. The next step is to add exercise (7) ________ you can raise the number of calories you can consume per day. Burning 250 or 500 calories per day can make a big (8) ________. You can ride an exercise bike while you are watching television (9) ________ you can take the stairs instead of the elevator. Find an exercise partner. Exercises can be a lot easier if there is someone to talk to. It’s a good idea to wear firm-fitting clothes if you are (10) ________. Tight clothing acts as a reminder of what you are trying to accomplish

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THE DANGERS OF DIETING
Thanks to our modern lifestyle, with more and more time spent sitting down in front of computers than ever before, the (1)____ of overweight people is at a new high. As people frantically search for a solution (2)____ this problem, they often try some of the popular fad diets being offered. Many people see fad diets (3)____ harmless ways of losing weight, and they are grateful to have them. Unfortunately, not only don’t fad diets usually (4)____ the trick, they can actually be dangerous for your health. Although permanent weight loss is the (5)___, few are able to achieve it. Experts estimate that 95 percent of dieters return to their starting weight, or even (6)____ weight. While the reckless use of fad diets can bring some (7)____ result, long-term results are very rare. (8)____, people who are fed up with the difficulties of changing their eating habits often turn to fad diets. (9)____ being moderate, fad diets involve extreme dietary changes. They advises eating only one type of food, or they prohibit other types of foods entirely. This results in a situation (10)______ a person’s body doesn’t get all the vitamins and other things that it needs to stay healthy.

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The role of translation enabling literature to pass beyond its natural frontiers is receiving growing recognition. In view of the general increase in this (1)_____, it is not surprising that many   people with literary interests and a knowledge of languages should think of adopting translating as a full-or part-time (2)_____. Some advice may usefully be given to such would-be translators. The first difficulty the beginner will (3)_____is the unwillingness of publishers to entrust a translator to anyone who has not already (4)____a reputation for sound work. The least publishers  will (5)____ before commissioning a translator is a fairly lengthy specimen of the applicant’s work, even if unpublished. Perhaps the best way the would-be translator can begin is to select some books of the type (6)_____ he or she feels competent and eager to translate, translate a (7)_____section of   the book and then submit the book and the translation to a suitable publisher. If he or she is extremely lucky, this may result in a commission to translate the book. More probably, however, publishers   will (8)____the book as such but if they are favorably (9)__________    by the translation, they may very possibly commission some other books of a (10)______ nature which they already have in mind.