Find the word which has a different sound in the part underlined.

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The Most Powerful Force in Space
A black hole is a spot in space that has incredibly powerful gravity. A hole’s gravity is so strong that it pulls everything nearby into it. It can pull stars, planets, and other things. Nothing can escape a black hole. In fact, they are so powerful that even light cannot escape them. Scientists first started talking about black holes in the year 1783. That year, one scientist said that in the universe, there might be places with gravity strong enough to trap light. However, that scientist didn’t use the term “black hole”. The term “black hole” was invented in 1967. Black holes are formed when a star dies. When a star dies, it collapses. When that happens, a huge amount of matter crowds into a very small space. The matter becomes very, very dense. How much matter are we talking about? Imagine a star that is the size of ten suns. Imagine fitting that amount of matter into New York City. That is what a black hole is like. Its gravity is so powerful because it has so much matter. However, not all black holes are huge. Scientists believe that some black holes are the size of atoms. Although these black holes are tiny, they might have the same amount of matter that a mountain has. We can’t see black holes because they don’t have any light. They are completely invisible. Scientists can guess where black holes are by studying nearby stars and planets. If gravity seems to be pulling the stars and planets to one spot, then scientists believe that the spot is a black hole. Some people wonder if a black hole could ever destroy the Earth. We do not need to worry about that. There is no black hole that is close enough to destroy the Earth. The closest black hole is about 7,800 light years away. In addition, the sun is not big enough to create a black hole.
2. How do scientists study black holes?

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
Language is the normal way humans communicate. Human language has syntax, a set of rules for connecting words together to make statements and questions. Language can also be changed, by adding new words, for example, to describe new things. Other animals may (1)________ a set of calls which their predecessors have left. Language may be done by speech or by writing or by moving the hands to make (2) ________. It follows that language is not just any way of communicating. Even some human communication is not a language, like (3) _________ language for example. Chinese is the language with the most native speakers in the world, but Chinese is not really a language. It is a close family of dialects, some of (4) ________ are as different as Romancelanguages are from one another. English is often called "the international language", or lingua franca. It is the main second language of the world and the international language of science, travel, technology, business, diplomacy, and entertainment. French had a similar (5) _________ until the 20th century, and other languages had it at other times

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Space Tourism
If you are like most people, you probably dream of spending your next vacation sightseeing or relaxing in a tropical spot. But pretty soon, you may have the option of blasting into space and exploring the universe. It appears that space tourism may start to experience a boom that is sure to be out of this world. Since ancient times, humans have surely dreamed about visiting space. However, it was just a fantasy until 1961, when Soviet cosmonaut Yuri Gagarin became the first person to fly into space. Yet in the years following, only a few highly-trained Soviet and American astronauts managed to leave the Earth’s atmosphere. In the mid-1980s, the US began to relax some of its restrictions. In 1986, an engineer named Charles Walker became the first non-government employee to fly into space. A year later, an American teacher named Christa McAuliffe was chosen to be the first teacher in space. Unfortunately, the Space Shuttle she was on, The Challenger, crashed during takeoff, killing everyone on board. Space tourism got an unexpected boost from the collapse of the Soviet Union. With Russia’s space programme in dire need of money, it became open to offers for space tourism. In 1990, a Japanese reporter was allowed to fly with a Russian crew into space, but the trip would cost his employer $28 million. In the late 1990s, a private company, MirCorp, started organizing trips to space for wealthy individuals. Now, many other companies are trying to do the same. Still, most people who want to become space tourists face a major barrier: the price. Early space tourists have paid dozens of millions of dollars for a seven-to- ten-day stay outside the Earth. However, there are some indications that the price will come down in the near future. Some corporations are gearing up for this with big plans to make space a more hospitable place. The luxurious hotel chain Hilton has expressed interest in opening a space hotel in the next 15 to 20 years. Meanwhile, some experts believe that flights to and from the moon could become a common occurrence within a few decades. Hopefully someday soon we will all have the chance to get to know our solar system a little bit better.
2. Who was Christa McAuliffe?

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Tantalizing Teas from around the Globe
There are few things in life as refreshing as a cup of hot tea. However, few people realize the wide variety of teas available. Here are some more options to try the next time you are in the mood for a cup of tea. The most famous tea in the West is Earl Grey. Although it is classified as a black tea, Earl Grey contains some citrus qualities as well. The tea gets its name from a 19th century prime minister of England, Charles Grey. According to the legend, Grey saved the life of a drowning man in China. The man he rescued was reportedly a tea blender, so as a reward he instructed Grey how to flavour black tea with a special type of oil. Many tea historians doubt this tale and insist that the only reason the tea is named after Grey is that he was a famous politician. Another famous black tea is Assam tea. It comes from the mountains of India and it is named after the region where it is produced. Assam tea is known for its strong and bitter flavour. It is sometimes called the breakfast tea, because it is an invigorating brew to enjoy in the morning. Although Assam tea is cultivated in the East, it immediately became a big hit once it was introduced to the West. Some people enjoy drinking Assam tea straight, but others feel it is best with a little bit of milk and sugar added. It has been known to go perfectly with sweets as well as more pungent foods like cheese. Chamomile tea has a light, pleasant taste that some people have described as a mix between flowers, herbs, and apples. Yet, it is the potent health benefits of the tea that cause most people to buy it. For starters, it is the best tea to have at the end of a long day when you are looking to relax. In fact, it has been used as a cure for insomnia for hundreds of years. In ancient times, it was also used by the Romans, Greeks, and Egyptians to help wounds heal faster. Chamomile has anti-­inflammation properties, so it can also help to clear up skin issues such as allergies and acne as well. So the next time you are sitting down for afternoon tea, be sure to have a close look at the menu. You may even discover a new variety that becomes your favourite.
7. In addition to drinking chamomile tea, it is also useful when __________

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 :
Faster processors and advances in memory technology have made today’s smartphones much more powerful than a lot of computers from just a decade ago. With wireless technology, people can surf the internet, play online games, send e-mail, and do (1)_________ all the things they once could only do on a computer. (2)__________, they have the power to do things constantly at their fingertips. Many people (3)_________ that while smartphones are powerful tools, they are making people reliant on them. Why would a person need to learn to read a map when he can get directions to anywhere by simply asking his phone a question? Who needs to learn maths when you have immense calculating power in your pocket at all times? What (4)__________ is there to memorise facts about history, art, or geography when that information is readily available from a portable Internet interface? There are just some of the questions being asked and answered as smartphone usage continues to spread. Like any technology, smartphones have their advantages, but they do have disadvantages as well that we must (5)__________ an eye on.

The concept of urban agriculture may conjure up images of rooftop, backyard or community gardens scattered among downtown city streets and surrounding neighborhoods. But in the Seattle area, and within and beyond the Puget Sound region, it means a great deal more. "Urban agriculture doesn't necessarily equate to production that occurs only in a metropolitan urban area, "says Jason Niebler, who directs the Sustainable Agriculture Education (SAgE) initiative at Seattle Central Community College. "It means we are providing for growing population food needs from surrounding rural landscapes, as well as from the core urban landscape."

Picture a series of concentric circles, with an urban core that produces some food at varying capacities, surrounded by a series of outlying rings of small farms that become increasingly more rural with distance. The hope is that such land use planning, from the inner core to the outer rings, will encourage local ecologically sound sustainable food production. This, in turn, will create local jobs and decrease reliance on distant food products that originate from petroleum-intensive large scale farms.

That's the idea behind SAgE, believed to be the nation's first metropolitan-based community college sustainable agriculture program that emphasizes farming practices across diverse landscape types from urban centers to surrounding rural environs. "It's small scale agriculture with an urban focus" Niebler says. "Any urban population, large or small, can practice sustainable agriculture, improve food security and protect the environment, which ultimately results in resilient food systems and communities."

SAgE is a part of National Science Foundation's Advanced Technological Education (ATE) Program, which is providing the project with $157,375 over two years. ATE's goal is to support projects that strengthen the skills of technicians who work in industries regarded as vital to the national's prosperity and security. The support largely goes to community colleges that work in partnership with universities, secondary schools, businesses and industries, as well as government agencies, which design and implement model workforce initiatives.

The SAgE project focuses on the environmental, socioeconomic, political and cultural issues related to sustainable food systems, within Puget Sound watersheds through student and community education and research, and technological innovation. The curriculum offers courses that cover such issues as agricultural ecology, urban food systems, food politics and ethics, soil science, sustainable food production and technology, the integration of food and forests, and career opportunities.

"We've created a curriculum that is fundamental in nature, addressing the principles of sustainable agriculture and what a food system is - how it functions both locally and globally," Niebler says. "These courses are challenging, robust and inspirational. One of the really wonderful things about them is that we offer service learning opportunities, where students volunteer a portion of their time to working with local partner organizations. They can do a research project, or a service learning option. The ideal would be to prompt students into careers that involve sustainable practices in an urban agriculture setting."

Adapted from "Promoting Sustainable Agriculture" by Mariene Cimons

Which of the following is supposed to be an outcome of the SAgE's new land use planning?

Up to now, ______ space exploring still remains _____ very risky, complex, and expensive endeavor.

(324)______

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Is It Safe?
Fracking is a way of getting energy from the ground. First, a special liquid is put into the ground. This liquid cracks rocks under the ground. After the rocks are cracked, oil moves through the cracks. Then it is much easier to take the oil from the ground. Fracking was started in 1947. These days, we are doing more and more fracking. That is why everyone is suddenly talking about it. A lot of people say that fracking is a good way to get energy. There is some gas that is very difficult to take from the ground. If we didn’t use fracking, we would not be able to get this oil. They say that because the world need more energy, we have to use fracking. Also, it is said that fracking creates a lot of jobs. However, many people are against fracking. They say that fracking’s “special liquid” pollutes the ground, the water, and the air. People who live near fracking areas could have health problems. Moreover, fracking is very loud. In some countries, fracking is now illegal. The first country to make fracking illegal was France. They did that in 2011. In other countries like England, fracking is legal, but there are many rules that control it. Other countries are waiting to learn more about fracking before they decide whether or not to allow it. However, fracking is very big in the United States. The US is number one fracking country in the world. People who support fracking say that it can be very safe. They say that first, we need strong laws to make sure that fracking is always done safely. Second, they say that fracking needs safe methods and good technology. It is said by many that after we develop these things, fracking will be great for the whole world. However, other people want fracking to be illegal everywhere. They say that it will never be safe. We still don’t know enough about fracking. After we learn more about it, we can decide whether it is really a safe way to get energy or not.
3. All of the following are true about fracking EXCEPT that __________

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Durable Ceramic Beauty
Inside an art and craft workshop, a young woman sits in front of a pottery wheel. The machine contains a large lump of clay which she molds into the shape of an elaborate bowl. Later, when she is satisfied with its appearance, it will be baked in an oven until it solidifies. Then she adds decorative paints to add some style. In the end, this ceramic pot will be both a handy utility for eating as well as a work of art. Humans have been working with ceramics for about 30,000 years, making it one of the oldest industries on the planet. In ancient times, ceramics enabled humans to make containers to store food and drinks, as well as bricks for buildings, but as time went on, people found other uses for this prehistoric technology. Techniques were added to give these products more eye-catching designs. Objects were often coated with glaze, so they would be smoother and more pleasant to touch. This helped to transform these practical items into works of art. People would pay large amounts of money for pieces of ceramic art and use them to decorate their homes. In modern times, architects and inventors discovered that ceramic offered the perfect balance between beauty and durability, and started using it in their products as well. Ceramics have found a home in the world of automobiles as they are used to produce several products. They are often used to make brake discs, engines, and other parts because ceramics are able to withstand extremely hot temperatures. Ceramics also play a part in the world of medicine, as their flexibility and strength are perfect for creating sturdy dental implants. Other doctors are using them to replace damaged bones because they are able to bond with tissues in the body without causing adverse reactions. In many kitchens today, you will also find ceramic knives. Once they are produced, the hard edges of these blades rarely need to be sharpened. Unlike metal knives, they won’t rust when exposed to difficult conditions. Ceramics also help to make it possible for humans to travel into space. Space shuttles are designed with ceramic tiles because they are one of the few materials that can stand the extreme heat when reentering the Earth’s atmosphere, plus they don’t wear out easily. With so many useful applications, it is hard to deny that ceramic technology is out of this world.
1. What does the first paragraph describe?

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She was able to ...... all the tasks assigned to her.

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

FAMILY HISTORY

In an age when technology is developing faster than ever before, many people are being (21) _____to the idea of looking back into the past. One way they can do this is by investigating their own family history. They can try to (22) _____out more about where their family came from and what they did. This is now a fast-growing hobby, especial in countries with a (23) _____ short history, like Australia and the United States.

It is (24) _____thing to spend some time (25) _____through a book on family history and to take the (26) _____to investigate your own family’s past. It is (27) _____another to carry out the research work successfully. It is easy to set about it in a disorganised way and (28) _____yourself many problems which could have been (29) _____with a little forward planning.

If your own family stories tell you that you are (30) _____with a famous character, whether hero or criminal, do not let this idea take over your research. Just treat it as an interesting possibility. A simple system for  collecting and storing your path. The most important thing, though, is to get started. Who knows what you might find?

(26) _____

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You/ can/ watch/ The Pig Race/ this/ channel.

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

FAMILY HISTORY

In an age when technology is developing faster than ever before, many people are being (21) _____to the idea of looking back into the past. One way they can do this is by investigating their own family history. They can try to (22) _____out more about where their family came from and what they did. This is now a fast-growing hobby, especial in countries with a (23) _____ short history, like Australia and the United States.

It is (24) _____thing to spend some time (25) _____through a book on family history and to take the (26) _____to investigate your own family’s past. It is (27) _____another to carry out the research work successfully. It is easy to set about it in a disorganised way and (28) _____yourself many problems which could have been (29) _____with a little forward planning.

If your own family stories tell you that you are (30) _____with a famous character, whether hero or criminal, do not let this idea take over your research. Just treat it as an interesting possibility. A simple system for  collecting and storing your path. The most important thing, though, is to get started. Who knows what you might find?

(22) _____

There are many superstitions in Britain, but one of the most (1) ______ held is that it is unlucky to walk under a ladder even if it means (2) ______the pavement into a busy street! If you must pass under a ladder, you can avoid bad luck by crossing your fingers and keeping them crossed until you have seen a dog. (3) ______, you may lick your finger and make a cross on the toe of your shoe, and not look again at the shoe until the mark has dried. Another common superstition is that it is unlucky to open an umbrella in the house - it will either bring (4) ______ to the person who opened it or to the whole (5) ______. Anyone opening an umbrella in the fine weather is unpopular, as it inevitably brings rain!

(65)_______-

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Is/ Nile/ longest/ river/ world?

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:
An air pollutnt is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled – a far cry from the extensive list of harmful subtances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.
Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and notrigen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature’s output of these compounds dwarfs that resulting from human activities.
However, human production usually occurs in a localized area, such as as city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a subtance to be a pollutant; in fact, the numerial value tells us little until we know how much of an increase this represents over ther concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

For which of the following reasons can natural pollutants play an important role in controlling air pollution ?

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Aspirin's origins go back at least as early as 1758. In that year, Englishman Edward Stone noticed a distinctive bitter flvor in the bark of the willow tree. To Stone, this particular bark seem to have much in common with "Peruvian Bark", which had been used medicinally since the 1640s to bring down fevers and to treat malaria, stone decided to test the effectiveness of the willow bark. He obtained some, pulverized it into tiny pieces, and conducted experiments on its properties. His tests demonstrated that this pulverized willow bark was effective both in reducing high temperatures and in relieving aches and pains. In 1763, stone presented his tiding to the British Royal Society. Several decades later, further studies on the medicinal value of the willow bark were being conducted by two Italian scientists. These chemists, Brugnatelli and Fontana, determined that the active chemical that was responsible for the medicinal characteristics in the willow bark was the chemical salicin, which is the active ingredient of today's aspirin. The name "aspirin" is the trade name of the drug based on the chemical salicin, properly known as acetylsalicylic acid.The trade name "aspirin" was invented for the drug in the 1890s by the Bayer Drug Company in Germany. The fist bottles of aspirin actually went on sale to the publicjust prior to the turn of the century, in 1899.
4. The word "properties" in could best be replaced by: 

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He finally received the _________ that he deserved for his teaching career.

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It is the recommendation of many psychologists that a learner ought to use mental images to associate word and remember them.

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A short part of a film or movie that is shown separately is called a ......