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Fossil fuels are used to generate the majority of the world’s energy, and they come in different forms. For example, coal may be burned in a power (1)_________ to generate electricity, but gasoline is burned in a car’s engine to make it run. Neither of these two sources is considered green energy because they produce a lot of pollution when they are burned. In addition, they come from a source that is inevitably going to (2)__________. Green energy can be defined as any energy source that is to some degree non­polluting. When it is called (3)__________, this means that a person can replace the same amount of energy that was consumed by that person (4)__________ that person’s lifetime. Since it took millions and millions of years to create the fossil fuels that we now burn, we know that they cannot be replaced by us. Wind power and solar power, (5)__________ harnessed properly, are two excellent sources of green energy. Once the necessary parts such as wind turbines to generate wind power and solar panels to create solar power have been produced, only the pollution from the production is left.

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I bought this new software _____ Chinese.

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What Do You Think?
We have all had bad experiences with restaurants, stores, or hotels. Maybe you have gone to a restaurant that served terrible food. Perhaps you have gone to a store that had high prices or bad service. Or maybe you have booked a hotel and found out later that the room was nothing like the advertisement. These days, we have a better chance of preventing these unpleasant surprises. We can do this by using apps. “App” is short for “application”. An app is a computer programme on a smartphone. You can use apps to do almost anything. Apps can help you play games, get directions, talk to friends, and so on. If you want to find information about a store or a hotel, you can use a review app. Review apps help us evaluate services and products before we hand over our money. The idea is very simple. After you go to a restaurant or stay in a hotel, you can post a review with one of your apps. You can say anything you want. If you like a hotel you stayed in, you can tell people that it was wonderful. If you think that the food in a certain restaurant was bad, then you tell people not to eat there. Other people can use their apps to read your reviews. Plenty of people prefer not to use these review apps. Many of these people prefer to go out and decide for themselves whether or not a service is good. However, review apps are getting more and more popular every day. Some apps are for specific services. For example, Tripadvisor focuses on travel, and Goodreads focuses on books. There are also other, larger apps that provide information for just about every service that you can think of
7. Which of the following would be another good title for the passage?

Hiking the trail to the peak ______ be dangerous if you are net well prepared for dramatic weather changes. You ____ research the route a little more before you attempt the ascent.

(365)______

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We are truly at a(n) (1)__________ between imagination and reality, especially when it comes to film. No longer are we able to tell what is real and what isn’t. In the past, it was easy to tell if a scene in a film was created artificially, as the special effects were never very good. To a person who grew up with the special effects that Hollywood can create today, the effects in films from 50 years ago are laughable. The scenes from these films come (2)__________ as so obviously fake that they are almost painful to watch. Today, however, a line has been crossed. Computer-generated animation has made it nearly impossible to (3)_________ between what was actually filmed and what was created by lines of computer code by a programmer. Not only is scenery created by computers, but also many actors known as extras. In the past, a film director would have to hire dozens and possibly hundreds of extras in order to show a crowd scene. This is no longer the (4)____________, and the one film that proved thus was achievable was Titanic, directed by James Cameron. However, years later, computer animation was taken to yet another (5)__________ by the same director with the movie Avatar.

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As teenagers approach university level, a decision has to be made on what course to pursue. In this world of diversity, (1) ______ such a choice is not easy for both children and parents. In the old days, it was not much a problem to do the task because there were not so many diverse learning areas to choose from. Besides, there were only a few distinctive professional careers like doctor, engineer, accountant, nurse, teacher,etc.  to think about. Most higher learning usually led to a financially successful life. (2) ______, the cost of education was not so high. Today’s world is entirely different from the things (3) ______ have just been described.  The job market is constantly changing due to innovative technology and new (4) ______. Meanwhile, most teenagers have difficulty in identifying their own interests. There are a variety of well- organized career talks and student counseling workshop to guide and help teenagers (5) ______ what course to take. Furthermore, psychological tests are also used.  Certain instruments such as surveys, interviews and computer software can help to find out preferences, interests, or learning styles of the students

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They hope they _______ meet their pen pal friends one day.

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If I were offered the job, I think I ____________ it.

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The Wonders of Wetlands
If you’re searching for scenic places or areas, visiting wetlands probably won’t be high on your list. Wetlands are areas of land that are often saturated with water and they are quite an eyesore. Although they might not look very pretty, they play an important part in keeping the environment clean and suitable for plant and animal life. With the exception of Antarctica, wetlands occur naturally on every continent. There are many different types of wetlands on the Earth, including bogs, swamps, and marshes. Along with rainforests, they are among the most diverse places on the Earth. In addition to naturally-occurring wetlands, humans are creating artificial ones for a number of purposes related to water management. One of the main benefits of wetlands is that they can prevent floods. They do so by storing water temporarily and then slowly releasing it over time. Wetlands operate similarly to a sponge. When it rains heavily and water levels rise, they absorb the excess water. This prevents runoff from entering streams and keeping them from overflowing. Then, when water levels become low in the future, they will release it. In many cases, wetlands offer a much more affordable solutions than dams. However, it’s important to note that wetlands, like dams, don’t eliminate all dangers from flooding. In cases of extremely heavy rainfall, wetlands can fill up and any additional water will start to run off. Wetlands can also play a part in water purification. Agricultural practices, urban runoff, and sewage waste are a major cause of water pollution. Wetlands contain plants and organisms that can reduce this pollution by filtering out unwanted substances such as chemicals, and decomposing matter, as well as sediment. Wetlands have additional benefits for the environment as well. They can help to feed nearby fish populations by releasing vegetative matter to rivers. Also, many amphibians use wetlands as breeding grounds because it provides places for foraging and the shallow water they require for reproduction. Some birds also use wetlands for migration, as they can settle in trees and then raid the wetland’s waters for fish when they’re hungry. Although wetlands may not look pretty, it’s clear that they are capable of doing the dirty work required to keep our planet clean and ensure that the circle of life remains unbroken.
3. What is the fourth paragraph mainly about?

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We have never gone to any orphanage ____________.

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Not everybody recognizes the benefits of new developments in communications technology. Indeed, some people fear that text messaging may actually be having a negative (1)_____ on young people's communication and language skills, especially when we hear that primary school children may be at (2)______ of becoming addicted to the habit. So widespread has texting become, however, that even pigeons have started doing it. What’s more, in this case, it's difficult to view the results as anything but positive.
Twenty of the birds are about to (3) ______ to the skies with the task of measuring air pollution, each (4) _____ with sensor equipment and a mobile phone. The (5) _____ made by the sensors will be automatically (6) _____ into text messages and beamed to the Internet - where they will appear on a dedicated 'pigeon blog'

It was so relaxing to be ________ old friends.

(521)____

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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.

What does the passage mainly discuss?

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.
Many people today would like the traditional two-parent family back, that is to say, they want a man and a  woman to (1)...................for life; they also think the man should support the family, and the woman should stay home with the children. However, few families now (2)................. in the this category. In fact, if more women decide to have children on their own, the single-parent household may become more typical than the traditional family in many countries. Also, couples may decide to have more children, or they might take in foster children or (3).............. . And because people are staying single and living longer, there may be more one-person households. (4).......... the otherhand, some people believe that similar events happen again and again in history. if this is true, people may go back to the traditional (5).................. or nuclear family of the past. Others think that the only certainty in history is change. in other words, the structure of the future family could begin to change faster and faster and in more and more ways.

(1)......................................

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Incredible Shrinking Microchips
There is a popular old saying that “bigger is better”. Although this may be true in some regards, the exact opposite often applies in technology. As electronic components get smaller, it allows companies to manufacture tinier devices with more features. Thus began the never-ending quest to create the smallest microchips on the planet. Yet as these vital electronic components get smaller, they are also getting stronger and clever inventors are finding new ways in which to use them to do incredible things. Currently, the biggest limitation microchip producers face when trying to reduce chips’ size is the copper wires that provide electrical current throughout the chip. Although they can be made smaller, this can cause a whole host of problems such as melting and overheating. Thanks to the work of a few scientists from the UK though, this problem may soon be a thing of the past. Their solution is getting rid of the copper wiring altogether and using carbon nanotubes instead. Not only would this allow for smaller sizes but it would also increase the power that microchips can generate. In the end, this would translate into smaller and more powerful devices much to the delight of consumers all over the world. Corporate powerhouse Intel® has announced plans to create a line of tiny, low power chips that can be used in bracelets, smart watches, and other tiny devices. The chips will be called Intel® Quark, and they are being designed primarily to fit in biomedical devices. A key selling point to biomedical technology is that the devices have to be nonintrusive because people don’t want to carry around heavy equipment to monitor their health. If they can do this, Intel® will likely find several tablet and smartphone manufacturers who are willing to corporate Quark microchips into their devices. In a somewhat unusual project, researchers are working on a special microchip that will serve as miniature human organs in experiments. These “organ” chips could be used to test different medicines and study diseases. If realized, the technology could put an end to the use of lab mice and other animals for testing. Everyone from the largest pharmaceutical companies to the US military has shown interest in the project. Currently, the research team in charge of the project believes that within five years the organ chips will be used in practical research. It goes to show that thinking small often produces the biggest results.
4. All of the following are characteristics of using carbon nanotubes EXCEPT ________

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Have you ever noticed that our machines are getting smaller? Cell phones, cameras, computers and everything else look smaller every year. One kind of new science involves machines that are smaller than we can imagine. The name of this science is nanotechnology. Nanotechnology means doing science, engineering, and technology at a very very small level. In other words, nanotechnology is the science of tiny things. But how tiny is the science of nanotechnology? In nanotechnology, scientists work with things that are the size of a nanometer. One meter has one billion nanometers. Here is another way to describe nanotechnology: it is the science of observing and controlling individual atoms and molecules. Nanotechnology is a new word, but the idea of studying atoms and molecules has existed for a long time. In 1959, an American scientist Richard Phillips Feynman gave a speech in which he claimed that we can see and control molecules and atoms. About ten years later, a Japanese professor came up with the term “nanotechnology”. Because nanotechnology is so new, we are only starting to understand how we can use it. Nanotechnology could be very useful in medicine. In the future, doctors may use nanotechnology to help with organ transplants. An organ transplant is the act of putting an organ into another person’s body. Scientists think that with nanotechnology, they might be able to make a person’s body accept a foreign organ. Nanotechnology might also help doctors fight infections, find diseases in patients, and deliver medicine to the right spot in patients’ bodies. Nanotechnology might also be useful in protecting the environment. It might be able to help us save energy, reduce waste, and keep water clean. For example, nanotechnology might be able to make some materials such as steel stronger. If we have stronger steel, we will be able to use it longer. That way, we can produce less steel and save our resources. Nanotechnology might be useful in so many ways. This science of studying tiny things could change the world.
6. All of the following are the advantages of using nanotechnology in medicine EXCEPT that________.

The customer had tried _____ some blouses but none of them suited her.

(469)_______

The International Red Cross works as _____ impartial, neutral, and independent organization.

(465)_____

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The Life of a Food Critic
You’ve seen restaurant reviews in newspapers, or perhaps in magazines or on the Internet. People read these reviews when they want to know about the quality and price of the food at a restaurant. Or maybe they’re looking for a restaurant with a distinctive atmosphere – dark and romantic, bright and cheerful, or modern and sophisticated. But who writes the articles? Who gets paid to eat? Those lucky people are food critics. Food critics are journalists who eat at restaurants and write reviews that give readers the feeling that they have visited the restaurant themselves. The articles almost always include a description of the restaurant, for example, whether it is nicely decorated or has a beautiful view of the ocean. The menu, prices, and service are generally described as well, but a food critic’s main task is to write about their opinion of the food. For “foodies” – people who love and study food and cooking – dining is a feast for the senses, not just for the stomach. Food critics may tell readers about the colours of fresh vegetables, the silky texture of a soup, or the rich aroma of a perfectly cooked chicken. They will mention whether they were listening to soft music while they ate, or the noises of pots and pans being washed in the restaurant’s kitchen and ending with the dessert. Every detail of the meal is important. All of this may sound easy enough, but food critics do face some challenges. First, food critics must be excellent writers. Their job is to give accurate information in an entertaining way because newspapers and other publications want the restaurant review to be an enjoyable feature. It is also important for food critics to be very observant by nature, and to have an excellent memory, since taking notes at the table is not something typical customers do. Looking like a typical customer is essential for remaining anonymous, but is perhaps the most difficult challenge. Food critic Ruth Reichl, former editor-in-chief of Gourmet magazine, used to go to restaurants wearing disguises so that she received the same food and service as any other diner. Despite the challenges, a career as a food critic appeals to many people. Anyone who is thinking about becoming a food critic should start by developing strong writing skills and learning as much about food and cooking as possible. 
8. How does the writer end the passage?

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This price reduction is due to ………… among suppliers.

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world/ the/ longest/ is/ The/ Thai name/ in/ the/ of/ Bangkok.