Either you or your friend ____ on charge today.

(244)_______

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.

The main function of the body clock is to________.

Read the passage below carefully, and then choose the best answer:
Plants that Can Help You
We have already talked about some dangerous plants, but we don’t want to give anyone the wrong idea. Please don’t think that most plants are dangerous. The truth is that although some plants can hurt you, most are completely harmless. In fact, there are plenty of plants that are actually very useful to humans. That is why plants are so popular in Chinese medicine. Chinese medicine has been using plants for at least 4,800 years. One of the most popular plants in Chinese medicine is ginseng. Doctors of Chinese medicine believe that ginseng can help your lungs, clean your blood, and do many other things. Ginseng is also a source of energy. In fact, many modern energy drinks that you see in stores contain ginseng. In some parts of the US, there is a plant called lady fern. This is the plant you need if you have been stung by a bee, or if you have got a small burn or a cut. Lady ferns are great for making your skin feel better. All you have to do is roll one of its leaves and crush it in your hands. The juices inside the leaf will help your skin feel better. If you are ever hiking in Europe, look for a flower called tansy. This yellow flower is a natural insect repellent. You just rub it on your skin, and insects will leave you alone. Sage is one of the most useful plants in the world. Because it has so many uses, it is also quite valuable. Human beings have been using sage for a very long time. In Europe, before refrigerators existed, people often used sage to preserve food. Over the years, people have used sage to fight all kinds of health problems. Sage has been used to treat colds, stop muscle problems, and reduce swelling. There are all kinds of other things that people have used sage for. In fact, sage is so useful that it comes from the Latin word “salvere” which means “to be saved”.
7. The word “it” in paragraph 4 refers to __________

Choose the best answer:
He couldn’t have committed the crime _________ he was with me that day.

Read the passage below carefully, and then choose the best answer:
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.
5. The word “them” in paragraph 1 refers to _________.

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:

LOWELL (March 3) – Just one year after opening, Viggo's Sweet Shop on Park Street has become the place to go for residents wishing to satisfy their sugary cravings. Says owner Viggo Magnusson, "Returning customers bring friends and relatives with them, so the shop is always ---1---." Mr. Magnusson credits the success of his business to the recipes he inherited from his grandmother about a decade ago. ---2---. But the popularity of the pastry shop ---3--- Mr. Magnusson with an unanticipated problem: lack of store space. So when the shoe store next door went out of business recently, he purchased the property to allow for the ---4--- of his shop. Renovations will start in April.

Choose the best answer:
______ draw on the walls and tables, please.

Read the passage below carefully, and then choose the best answer:
Billboards that Recognize You
Have you ever felt you were being watched? Some new technologies might make you feel that way. Digital billboards are being created that have the ability to recognize certain characteristics. These high-tech devices have cameras pointed at the people on the street, and software that tries to recognize people by age and gender. A computer inside the billboard then uses this information to display ads that are directed at the people who are looking at the billboard. For example, if a man passes a billboard featuring an ad for cosmetics, the computer can change the ad to something that is more likely to catch the man’s attention, such as a restaurant, or sporting goods. While advertisers see this as a great opportunity to reach their target customers, some people feel that this kind of profiling is an invasion of their privacy. People are now much more aware of how information is exposed, shared, bought, and sold on the Internet. Now this debate will include technologies such as these “smart” billboards. But advertisers claim that they are sensitive to people’s concern about privacy – companies that have tested the billboards in Japan and the US assure consumers that the billboards can only guess your age and gender, but they will not be able to recognize your face or obtain any personal information about you. Until recently, this kind of “personal” advertising has been mostly limited to the Internet. Search engines like Google and Bing can follow what we search for because each computer that connects to those sites has a unique identity. Companies then pay search engines to use this information to display ads for products and services that you have searched for. So if you search for travel information, you are likely to see ads for airlines and hotels. This kind of advertising has proven to be much more effective and valuable than traditional advertising. In addition to taking steps to deliver more personalized messages, advertisers are using billboards to offer more useful information. Digital billboards can connect to the Internet to display information such as the time, weather, and news headlines. In the future, this technology could be used to reflect activity on social media sites or to broadcast ads that relate to local events. In today’s world, people ignore thousands of ads every day. Advertisers are trying to change that trend by personalizing the experience of seeing an ad. So pay attention the next time you see a billboard – it could be talking to you.
5. Why does the passage mention Google?

Choose the best answer:
Smith had a lucky escape. He ___________.

Read the passage below carefully, and then choose the best answer:
The Particle that Started the Big Bang
In 2013, the Nobel Prize for Physics was awarded to Francois Englert and Peter W. Higgs for their discovery of a particle that is vital to our understanding of the universe. Although its official name is the Higgs boson, many refer to it as the God particle, because it’s considered to be the building block of the universe. Many believe that the Higgs boson may be the cause for the Big Bang explosion which led to the creation of the universe. In the 1960s, Higgs came up with the concept that particles had no mass when the universe started. In a split-second, however, it came into contact with something that gave it mass. This, Higgs theorized, was the Higgs boson. Many scientists initially laughed at the idea, but in the upcoming years, Higgs along with Englert and several of their peers continued to work on these concepts. Their ideas would eventually help lead the way to the discovery of the Higgs boson decades later. The search for the Higgs boson certainly didn’t come up cheap, as it cost nearly $10 billion to build the machinery necessary to perform the tests to find it. Yet nearly every physicist would agree that it was worth it, as the Higgs boson has already been labeled as one of the most important discoveries in particle physics. The finding is also a huge boost for physics in general because it proves that the Standard Model of Physics which researchers have been using for years is correct. The Higgs was the last remaining question mark as all of the other particles and elements had been found. Still, many ordinary people may question how such a discovery affects their lives at all. Although quantum mechanics may seem weird, it has actually led to several important technological breakthroughs over the past century. These findings have led to laser and X-ray technologies that work in the real world. There is still much to be learned with further observation of the Higgs boson in action. Scientists hope to learn more about dark matter, a strange substance that constitutes 25 percent of the mass of the universe. The research could also lead to some other technologies as well.
2. How did the God particle get its name?

Read the passage below carefully, and then choose the best answer:
A Picture Is Worth a Thousand Words
In 1826, a man named Joseph Nicephore Niepce went to the upstairs window of his home in France. He used a new invention called a camera to take the world’s first photograph of nature. Niepce’s photograph shows us the view from his window. However, it is very difficult to know that when you look at the picture. The image is not very clear at all. That doesn’t matter. On that day, Niepce changed the world forever. Photography first became very popular in the 1850s and 1860s. People liked it because it showed more details than other kinds of art. A painting or a statue might be more beautiful than a photograph, but a photograph can tell you a much clearer story. Many people believe that colour photographs didn’t exist until the 1920s, but that’s not true. The first colour photograph was taken in 1855. It shows a colourful ribbon. Before the 1920s, people didn’t often use colour photography because it was very complicated and expensive. Even after colour photography became easier and cheaper, many people still preferred black and white pictures. They felt that black and white had a more “classic photo” feeling. In the 1940s, colour photography finally replaced black and white. When we think of the history of photography, it is amazing to think of how easy it is to take pictures today. Many years ago, only professionals had cameras. These days, just about everybody has one. One of the biggest reasons for this change is the popularity of smartphones. Almost every modern smartphones. Almost every modern smartphone has a camera. These smartphone cameras are very easy to use and they also take very clear pictures. Most of them have a video function.  One thing that hasn’t changed is the importance of photography. These days, a picture can still create all kinds of feelings and emotions inside of us. There is a saying. “A picture is worth a thousand words.”
7. The saying “A picture is worth a thousand words” in paragraph 5 means that __________

Choose the best answer:
The valley is so dangerous to live in.

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
Security Inc. is the most trusted name in the sales and service of financial equipment and automated teller machines. Offering a degree of personal yet professional service that is unrivaled in the financial industry today, all employees at Security Inc. are…(1)….…to customer service and your complete satisfaction. We offer flexibility not found anywhere else in the financial services industry. Security Inc. can assemble a unique financial equipment package across multiple manufacturers' product lines or tailor a financial equipment service program to…(2)… your specific business needs. We offer the widest array of financial equipment products, services and supplies. This diversity in product and service offerings, combined with our unrivaled knowledge in the sale and service of automated teller machines, provides a ….(3)…. edge and real value for our customers.

Choose the best answer:
Ha Long Bay is one of the Seven ____________ of the world.

Choose the best answer:
He came up with the solution __________ every problem.

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
Wellness in the Workplace
(1)------- health care costs remain an issue of great concern for many employers. "People are working more hours, and at the same time, medical costs are rising, so it makes sense to promote wellness," says Morris Hsiu, health services coordinator for Greenview Marketing in Kelowna, British Columbia. "It costs less to build and staff a gym than it does to pay for health care, train new staff or hire temporary staff to take over when someone becomes ill (2)------- stress or overwork." At Greenview, as at other companies, employees who use the gym are more relaxed and productive and spend fewer days away from work due to illness, thus saving the company money. Hsiu recommends that companies start with small steps to (3)------- encourage good health. Some suggestions from Hsiu include bringing in instructors to provide classes in stretching or aerobics and hiring nutrition consultants for diet information

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
Early peoples had no need of engineering works to supply their water. Hunters and nomads camped near natural sources of fresh water, and populations were so sparse that pollution of the water supply was not a serious problem. After community life developed and agricultural villages became urban centres, the problem of supplying water became important for inhabitants of a city, as well as for irrigation of the farms surrounding the city. Irrigation works were known in prehistoric times, and before 2000 BC the rulers of Babylonia and Egypt constructed systems of dams and canals to impound the flood waters of the Euphrates and Nile rivers, controlling floods and providing irrigation water throughout the dry season. Such irrigation canals also supplied water for domestic purposes. The first people to consider the sanitation of their water supply were the ancient Romans, who constructed a vast system of aqueducts to bring the clean waters of the Apennine Mountains into the city and built basins and filters along these mains to ensure the
clarity of the water. The construction of such extensive water-supply systems declined when the Roman Empire disintegrated, and for several centuries local springs and wells formed the main source of domestic and industrial water. The invention of the force pump in England in the middle of the 16th century greatly extended the possibilities of development of water-supply systems. In London, the first pumping waterworks was completed in 1562; it pumped river water to a reservoir about 37 m above the level of the River Thames and from the reservoir the water was distributed by gravity, through lead pipes, to buildings in the vicinity. Increased per-capita demand has coincided with water shortages in many countries. Southeast England, for example, receives only 14 per cent of Britain's rainfall, has 30 per cent of its population, and has experienced declining winter rainfall since the 1980s.
In recent years a great deal of interest has been shown in the conversion of seawater to fresh water to provide drinking water for very dry areas, such as the Middle East. Several different processes, including distillation, electrodialysis, reverse osmosis, and direct-freeze evaporation, have been developed for this purpose. Some of these processes have been used in large facilities in the United States. Although these processes are successful, the cost of treating seawater is much higher than that for treating fresh water.

For several centuries after the disintegration of the Roman Empire, the main source of water supply was from _ .

Read the passage below carefully, and then choose the best answer:
The Particle that Started the Big Bang
In 2013, the Nobel Prize for Physics was awarded to Francois Englert and Peter W. Higgs for their discovery of a particle that is vital to our understanding of the universe. Although its official name is the Higgs boson, many refer to it as the God particle, because it’s considered to be the building block of the universe. Many believe that the Higgs boson may be the cause for the Big Bang explosion which led to the creation of the universe. In the 1960s, Higgs came up with the concept that particles had no mass when the universe started. In a split-second, however, it came into contact with something that gave it mass. This, Higgs theorized, was the Higgs boson. Many scientists initially laughed at the idea, but in the upcoming years, Higgs along with Englert and several of their peers continued to work on these concepts. Their ideas would eventually help lead the way to the discovery of the Higgs boson decades later. The search for the Higgs boson certainly didn’t come up cheap, as it cost nearly $10 billion to build the machinery necessary to perform the tests to find it. Yet nearly every physicist would agree that it was worth it, as the Higgs boson has already been labeled as one of the most important discoveries in particle physics. The finding is also a huge boost for physics in general because it proves that the Standard Model of Physics which researchers have been using for years is correct. The Higgs was the last remaining question mark as all of the other particles and elements had been found. Still, many ordinary people may question how such a discovery affects their lives at all. Although quantum mechanics may seem weird, it has actually led to several important technological breakthroughs over the past century. These findings have led to laser and X-ray technologies that work in the real world. There is still much to be learned with further observation of the Higgs boson in action. Scientists hope to learn more about dark matter, a strange substance that constitutes 25 percent of the mass of the universe. The research could also lead to some other technologies as well.
1. Why did Higgs and Englert win the Nobel Prize for Physics?

Choose the item among A, B, C or D that the best answers the question about the passage:

"The nuclear family, consisting of a mother, father, and their children, may be more an American ideal than an American reality. Of course, the so-called traditional American family was always more varied than we had been led to believe, reflecting the very different racial, ethnic, class, and religious customs among American groups.
 The most recent government statistics reveal that only about one third of all current American families fit the traditional mold and another third consists of married couples who either have no children or have none still living at home. Of the final one, about 20 percent of the total number of American households are single people, usually women over sixty-five years old. A small percentage, about 3 percent of the total, consists of unmarried people who choose to live together, and the rest, about 7 percent, are single, usually divorced parents, with at least one child. Today, these varied family types are typical, and therefore, normal. Apparently, many Americans are achieving supportive relationships in family forms other than the traditional one."

3. The word “current” in the second sentence of paragraph 2 could be best replaced by which of the following?

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?

(29).........

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 ‌from‌ ‌26‌ ‌to‌ ‌30.‌ ‌
Christ‌ ‌the‌ ‌Redeemer‌ ‌is‌ ‌an‌ ‌Art‌ ‌Deco‌ ‌statue‌ ‌of‌ ‌Jesus‌ ‌Christ‌ ‌in‌ ‌Rio‌ ‌de‌ ‌Janeiro,‌ ‌Brazil,‌ ‌created‌ ‌by‌ ‌Polish-French‌ ‌sculptor‌ ‌Paul‌ ‌Landowski‌ ‌and‌ ‌built‌ ‌by‌ ‌the‌ ‌Brazilian‌ ‌engineer‌ ‌Heitor‌ ‌da‌ ‌Silva‌ ‌Costa,‌ ‌in‌ collaboration‌ ‌with‌ ‌the‌ ‌French‌ ‌engineer‌ ‌Albert‌ ‌Caquot.‌ ‌The‌ ‌face‌ ‌was‌ ‌created‌ ‌by‌ ‌the‌ ‌Romanian‌ ‌(26)‌ ‌______‌ ‌Gheorghe‌ ‌Leonida.‌ ‌The‌ ‌statue‌ ‌is‌ ‌30‌ ‌metres‌ ‌tall,‌ ‌not‌ ‌including‌ ‌its‌ ‌8-metre‌ ‌pedestal,‌ ‌and‌ ‌its‌ ‌arms‌ ‌stretch‌ ‌28‌ ‌metres‌ ‌wide.‌ ‌By‌ ‌(27)‌ ‌______‌ ‌,‌ ‌it‌ ‌is‌ ‌approximately‌ ‌two-thirds‌ ‌the‌ ‌height‌ ‌of‌ ‌the‌ ‌Statue‌ ‌of‌ ‌Liberty’s‌ ‌height‌ ‌from‌ ‌base‌ ‌to‌ ‌torch.‌ ‌The‌ ‌statue‌ ‌weighs‌ ‌635‌ ‌metric‌ ‌tons‌ ‌(625‌ ‌long,‌ ‌700‌ ‌short‌ ‌tons),‌ ‌and‌ ‌is‌ ‌(28)‌ ‌______‌ ‌at‌ ‌the‌ ‌peak‌ ‌of‌ ‌the‌ ‌700-metre‌ ‌Corcovado‌ ‌mountain‌ ‌in‌ ‌the‌ ‌Tijuca‌ ‌Forest‌ ‌National‌ ‌Park‌ ‌overlooking‌ ‌the‌ ‌city‌ ‌of‌ ‌Rio.‌ ‌A‌ ‌symbol‌ ‌of‌ ‌Christianity‌ ‌across‌ ‌the‌ ‌world,‌ ‌the‌ ‌statue‌ ‌has‌ ‌also‌ ‌become‌ ‌a‌ ‌cultural‌ ‌icon‌ ‌of‌ ‌both‌ ‌Rio‌ ‌de‌ ‌Janeiro‌ ‌and‌ ‌Brazil,‌ ‌and‌ ‌is‌ ‌listed‌ ‌as‌ ‌(29)‌ ‌______‌ ‌of‌ ‌the‌ ‌New‌ ‌Seven‌ ‌Wonders‌ ‌of‌ ‌the‌ ‌World.‌ ‌The‌ ‌statue,‌ ‌(30)‌ ‌______‌ ‌was‌ ‌constructed‌ ‌between‌ ‌1922‌ ‌and‌ ‌1931,‌ ‌is‌ ‌made‌ ‌of‌ ‌reinforced‌ concrete‌ ‌and‌ ‌soapstone.‌ ‌

Question‌ ‌29:‌......................