Why is it that flying to New York from London will leave you feeling less tired than flying to London from New York? The answer may be a clear case of biology not being able to keep up with technology. Deep inside the brain there is a "clock" that governs every aspect of the body's functioning: sleep and wake cycles, levels of alertness, performance, mood, hormone levels, digestion, body temperature and so on. It regulates all of these functions on a 24-hour basis and is called the circadian clock (from the Latin, circa "about" + dies "day").

This body clock programmes us to be sleepy twice a day, between 3-5 a.m and again between 3-5 p.m. Afternoon tea and siesta times are all cultural responses to our natural biological sleepiness in the afternoon. One of the major causes of the travelers' malady known as jet lag is the non-alignment of a person's internal body clock with clocks in the external world. Crossing different time zones confuses the circadian clock, which then has to adjust to the new time and patterns of light and activity. To make matters more complex, not all internal body functions adjust at the same rate. So your sleep/wake may adjust to a new time zone at one rate, while your temperature adjusts at a different pace. Your digestion may be on a different schedule altogether.

Though we live in a 24-hour day, the natural tendency of the body clock is to extend our day beyond 24 hours. It is contrary to our biological programming to shrink our day. That is why travelling in a westward direction is more body-clock friendly than flying east. NASA studies of long haul pilots showed that westward travel was associated with significantly better sleep quantity and quality than eastward flights. When flying west, you are "extending" your day, thus travelling in the natural direction of your internal clock. Flying eastward will involve "shrinking" or reducing your day and is in direct opposition to your internal clock's natural tendency.

One of the more common complaints of travelers is that their sleep becomes disrupted. There are many reasons for this: Changing time zones and schedules, changing light and activity levels, trying to sleep when your body clock is programmed to be awake, disruption of the internal circadian clock and working longer hours. Sleep loss, jet lag and fatigue can seriously affect our ability to function well. Judgment and decision-making can be reduced by 50%, attention by 75 percent, memory by 20 percent and communication by 30 percent. It is often suggested that you adjust your watch as soon as you board a plane, supposedly to try to help you adjust to your destination's schedule as soon as you arrive. But it can take the body clock several days to several weeks to fully adjust to a new time zone.

On the subject of avoiding jet lag the article ________

Read the following passage and choose the best answer (A, B, C, D):
Of all modern instruments, the violin is apparently one of the simplest. It consists in essence of a hollow, varnished wooden sound box, or resonator, and a long neck covered with a figerboard, along which four strings are stretched at high tension. The beauty of design, shape, and decoration is no accident: the proportions of the instrument are determined almost entirely by acoustical considerations. Its simplicity of appearance is deceptive. About 70 parts are involved in the construction of a violin. Its tone and its outstanding range of expressiveness make it an ideal solo instrument. No less important, however, is its role as an orchestral and chamber instrument. In combination with the larger and deeper- sounding members of the same family, the violins form the nucleus of the modern symphony orchestra. The violin has been in existence since about 1550. Its importance as an instrument in its own right dates from the early 1600s, when it fist became standard in Italian opera orchestras. Its stature as an orchestral instrument was raised further when in 1626 Louis XIII of France established at his court the orchestra known as Les vinq-quatre violons du Roy (The King's 24 Violins), which was to become widely famous later in the century. In its early history, the violin had a dull and rather quiet tone resulting from the fact that the strings were thick and were attached to the body of the instrument very loosely. During the eighteenth and nineteenth century, exciting technical changes were inspired by such composer-violinists as Vivaldi and Tartini. Their instrumental compositions demanded a fuller, clearer, and more brilliant tone that was produced by using thinner strings and a far higher string tension. Small changes had to be made to the violin's internal structure and to the figerboard so that they could withstand the extra strain. Accordingly, a higher standard of performance was achieved, in terms of both facility and interpretation. Left-hand technique was considerably elaborated, and new tigering patterns on the figerboard were developed for very high notes.
4. The author mentions "Vivaldi and Tartini" in paragraph 3 as examples of composers whose music .

The teacher told Joe _____

(223)_____

Read the passage below carefully, and then choose the best answer:
Ocean Currents and the Turning of the Tide
If you take a seat at the beach and look out across the water, you’ll soon notice that oceans have a rhythm of their own. Throughout the course of the day, sea levels will rise and fall, and water will flow through routes and end up in different places. But how does it all work? One force at play is tides, which are the alternating water levels of the ocean. There are two major gravitational forces which cause tides: the sun and the moon. The moon’s force has a tugging effect on oceans which causes them to bulge outwards on opposite sides of the planet. Solar tides operate according to the same principles. However, they are only about 50 percent as strong due to the distance between the sun and the earth. As tides rise and fall, they create tidal currents. The strongest tidal currents occur at the height of both high and low tides. Unlike other currents, they do not flow in a continuous stream. Far from shore, tidal currents don’t have much of an effect. Yet when they pass through narrow area, like harbours and bays, tidal currents can displace plants, animals, and sediment. Although they may certainly shake things up, not all of the damage is negative. Tidal currents can spread fish eggs across long distances to assist fertilization, in addition to transporting key nutrients. Another category of currents is ocean currents. These currents occur near the top of the water, and are mainly powered by the wind. One example of these is coastal currents, which are those beachgoers encounter when going for a swim. One of the strongest and most well-known currents is the Gulf Stream, which brings warm water from the Gulf of Mexico all the way to Western Europe. Meanwhile, Deep Ocean currents are a powerful force in the depths of oceans. The strongest of these has been nicknamed the global conveyor belt, and it moves much slower than surface currents. Although we can’t see it in operation, it’s about 16 times as powerful as all the earth’s rivers put together. As the global conveyor belt pushes water around the planet, it carries nutrition and carbon dioxide to places that truly need them. In the end, although there are several currents working on oceans simultaneously, they each seem to perform a necessary function that creates balance for life in the sea.
8. What might be another good title for the passage?

Choose the best answer:
to/ Mary/ like/ buy/ English – Vietnamese/ an/ would/ dictionary.

Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following questions.
Unemployment rate is high. This makes many children move back to their parents' house.

 Despite _____ , we arrived on time.

(304)______

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
CesarJimenez
11 Greenway Court, Apt. 4G
Franklin, WI 53133
Dear Mr.Jimenez,
Your supervisor and (1)------- have reviewed your request to extend your hours from 20 hours to 40 hours per week. Based on the high quality of your performanceand the needs of your department, we have agreed to the time increase, effective January 2. The enclosed benefits booklet details the compensation that will be available to you as a full-time employee. Be sure to read this information (2)------- and submit the necessary paperwork before January 2. In the meantime, please meet with your supervisor to discuss how this change (3)------- your job responsibilities.Should you have any questions regarding your benefits or hours, I am available by phone (414-555-0186) or e mail (d_richards@haroldsonelectric.com).
Sincerely,
Deborah Richards
Director,Human Resources

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best option for each of the following questions.
Banana fiber is used in the production of banana paper. Banana paper is used in two different senses: to (1)..................... to a paper made from the bark of the banana tree, mainly used for artistic purposes, or paper made from banana’s fiber, (2).............. from an industrialized process, from the stem and the non–usable fruits. The paper can be either hand–made or made by machine. The volume of raw (3)................... for making banana paper around the world on plantations is vast and largely unutilized. The market for banana paper is seen as a growth industry. (4).......... 1988, in Costa Rica, companies like EcoPaper.com   and   Costa   Rica   Natural   Paper   have   been   producing   100%   industrialized   fine environmental and ecological paper derived from natural banana fibers, for the writing and stationery market.
This industry (5).......... numerous waste products such as: the plastic that wraps the bananas, plastic cords to tie the wrapping, damaged bananas and the pinzote (stems). An alarming quantity of over of 92% of water, 3% of resins and 2% glucose; the rest is vegetal fiber. This particular composition  makes it decompose without the solid component being destroyed. This causes a severe impact on the surrounding ecosystems – much to the detriment of rivers and underground waters.

(2).....................

Read the passage below carefully, and then choose the best answer:
Strengthening Your Core
If there is one indication that someone is fit, it is a tight and lean stomach. Men and women alike hope that eating right and putting in hard work at the gym will earn them a perfect six-patch. Unfortunately, the opposite is also true. The rising popularity of fast food has led to an increase of obesity rates and waistlines around the globe. If someone is out of shape, you will notice the extra weight around their midsection. In both cases, a person’s core muscles seem to tell a lot about their fitness and eating habits. Many people associate the core with just the stomach area, but science actually defines it as our body without arms and legs. Although many people want a solid core to look good, the development of these muscles affects many areas of our lives. In athletics and general life for that matter, we all rely on our core muscles heavily to get things done. Studies have shown that athletes who build a powerful core foundation aren’t injured as much. Meanwhile, the benefits of your average Joe may be even greater. Ordinary people use their core muscles for nearly every task they do. This includes picking things up, sitting in a chair, or tying your shoes. Our core muscles provide stability, so we can keep our balance and easily move in any direction. If we neglect them, life can become much more difficult. As a result, we should always consider our core muscles when designing our workouts. However, if you have been sedentary for years, performing thousands of repetitions will probably get you injured. Instead, start off slowly and gradually build up your numbers. An excellent exercise for both beginners and advanced exercisers is the plank. You simply get in an extended pushup position as if you have just finished a rep. Maintain this position, but place the weight on your forearms instead of your hands. Then, hold the position as long as you can. You should feel your core muscles working hard to help your hands and support the weight of your body. In the beginning, you may only be able to hold it for a few seconds, but keep at it. The Guinness World Record for abdominal planking is three hours and seven minutes.
8.  All of the following are good tips to strengthen our core muscles EXCEPT that __________

Read the following passage and choose the best answer (A, B, C, D):
Last year, there were millions of international tourist arrivals across the globe. Whether they were students on their (1)______ years looking for overseas adventure, stressed-out workers hoping to get away for a weekend, or retirees (2)______ to relax in an exotic location- clearly none of them thought they could find the same experience at home. The question is whether foreign travel brings more advantages or disadvantages. An obvious positive point is that going abroad sometimes helps people to expand their knowledge of the world. If they are (3)_____ – minded, they can learn about new cultures and hopefully gain a more accurate understanding about their way of life. In addition, there is the economic benefit of tourism to countries which have few other resources. It can provide an income to many people within the industry. Having said that, some people simply go to a foreign resort (4)______ by high walls and therefore learn little about their holiday (5)______. Another issue is that hordes of tourists often spoil the “unspoilt” places they visit. The most recent example of this is Antarctica, where last year cruise ships took thousands of visitors to view the disappearing icebergs and wildlife. Vegetation, nesting penguins and resting walrus are vulnerable when humans intrude

Kentron's own Groovato Gelato was founded in 2010 when Luciano Algieri, an Italian immigrant to the United States, bought a ---143--- on Coverby Avenue. The building had previously housed the Hopscotch Ice Cream Company, and Algieri was able to hire many former Hopscotch employees. Teaching ---144--- ice-cream crafters to make gelato proved to be an easy task.---145--- his product, Algieri started with an old family recipe. He then enhanced the flavor with secret ingredients plus unusual combinations of fruits and nuts. ---146---.

146.......................

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).........

Choose the best answer:
Come on! _____ we hurry, we'll miss the plane!

Choose the best answer:
Where’s the ____________ dress that your boyfriend gave you?

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions.
Together, the thousands of scientists and conservation organizations that contribute to the International Union for Conservation of Nature (IUCN) Red List and other systems of assessment provide the world's largest knowledge base on the global status of species. The aim of these systems is to provide the general public, conservationists, nongovernmental organizations, the media, decision makers, and policy makers with comprehensive and scientifically rigorous information on the conservation status of the world's species and the threats that drive the observed patterns of population decline. Scientists in conservation and protected area management agencies use data on species status in the development of conservation planning and prioritization, the identification of important sites and species for dedicated conservation action and recovery planning, and educational programs. Although the IUCN Red List and other similar species-assessment tools do not prescribe the action to be taken, the data within the list are often used to inform legislation and policy and to determine conservation priorities at regional, national, and international levels. In contrast, the listing criteria of other categorization systems (such as the United States Endangered Species Act, the CITES) are prescriptive; they often require that landowners and various governmental agencies take specific mandatory steps to protect species falling within particular categories of threat It is likely that many undescribed or unassessed species of plants, animals, and other organisms have become or are in the process of becoming extinct. To maintain healthy populations of both known and unknown species, assessments and reassessments are valuable tools. Such monitoring work must continue so that the most current knowledge can be applied to effective environmental monitoring and management efforts. For many threatened species, large well-protected conservation areas (biological reserves) often play major roles in curbing population declines. Such reserves are often cited by conservation biologists and other authorities as the best way to protect individual species as well as the ecosystems they inhabit. In addition, large biological reserves may harbor several undescribed and unassessed species. Despite the creation of several large reserves around the world, poaching and illegal trafficking plague many areas. Consequently, even species in those areas require continued monitored and periodic assessment.
4. The word 'they' in paragraph 1 refers to ____.

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 NOT true according to the passage?

Read the passage below carefully, and then choose the best answer:
It’s in Your Genes
Every human being has about 25,000 genes. Your genes are part of your DNA. They give your body instructions on how to develop. For example, if your genes tell your body to build long, thin fingers, then you will have long, thin fingers. Your genes come from your parents, and they decide everything about you. They decide your hair colour, your eye colour, your height, and so on. Genes are still a bit of a mystery to scientists, but they are learning new things about them all the time. One issue that people often debate is this: Do our genes influence our personalities? These days, most people agree that the answer to this question is yes. Recent studies have shown that genes especially influence our self-control and our sense of purpose. Your sense of purpose is your desire to have goals in your life. If a person really wants to accomplish something and do well in life, he or she has a sense of purpose. A person who does not care about goals has no sense of purpose. Although scientists agree that our genes influence our personalities, there is another question. How much do they influence us? Can we control ourselves, or do our genes control us? People everywhere are still debating this issue. So far, we don’t really have an answer. Genes also affect your health. If a gene has a problem, it is called a mutated gene. Some mutated genes can cause diseases. That is why if a person has a certain health problem, his or her child is more likely to have that same problem. The child also has the mutated gene. As scientists and doctors learn more about genes, they are also developing a new kind of medicine: gene therapy. Therapy is help for a mental or a physical problem. Gene therapy means fixing or replacing mutated genes. Scientists are still experimenting on gene therapy. It is possible that in the future, gene therapy will help doctors prevent and cure diseases that are caused by mutated genes.
3. The word “them” in paragraph 2 refers to __________

Rewrite sentences without changing the meaning
 It was very kind of you to send me the postcard.

Choose the best answer:
Almost everyone............for home by the time we arrived.

Choose the best answer:
He ____ write to her.