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Biologists sometimes define longevity as the average life span expected under ideal conditions. It's hard to say what's ideal. Plenty of medical research is ongoing (1) ____ the "right" amount and type of exercise to get the best diet to eat to maximize longevity, and (2) ____ certain pharmaceuticals or supplements can help improve your longevity.  Lifespans have increased pretty dramatically over the last century or so, in large part due to (3) ____ in medicine that have nearly eliminated certain deadly infectious diseases.  The average baby born in 1900 lived about a half-century. Nowadays, the life expectancy of people in the United States is nearly 79 years on (4) ____ -81 years for women and 76 years for men, and in some countries, life expectancy is even longer.  It's very (5) ____ that humanity's true longevity might be much higher. Humans might live longer if they can create the ideal conditions of a healthy diet and exercise

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The traffic light signal was invented by a railway signaling engineer. It was installed (26)_________The House of Parliament in 1868. It (27)_________like any railway signal of the time, and was operated by gas. (28)_________, it exploded and killed a policeman, and the accident (29)_________further development until cars became common.             (30)_________traffic lights are an American invention. Red-green (31)_________were installed in Cleveland in 1914. Three-color signals, (32)_________by hand from a tower in the (33)_________of the street, were installed in New York in 1918. The (34)________lights of this type to (35)________in Britain were in London, on the junction between St James’s street and Piccadilly in 1925.

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Amy Tan was born on February 19, 1952 in Oakland, California. Tan grew up in Northern California, (25) _____ when her father and older brother both died from brain tumors in 1966, she moved with her mother and younger brother to Europe, where she attended high school in Montreux, Switzerland. She returned to the United States for college. After college, Tan worked as a language development consultant and as a corporate freelance writer. In 1985, she wrote the story "Rules of the Game" for a writing workshop, which laid the early (26) _____ for her first novel The Joy Luck Club. Published in 1989, the book explored the (27) _____ between Chinese women and their Chinese– American daughters, and became the longest–running New York Times bestseller for that year. The Joy Luck Club received numerous awards, including the Los Angeles Times Book Award. It has been translated into 25 languages, including Chinese, and was made into a major motion picture for (28) _____ Tan co–wrote the screenplay. Tan's other works have also been (29) _____ into several different forms of media.

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The knock-on effect of volunteering on the lives of individuals can be profound. Voluntary work helps foster independence and imparts the ability to deal with different situations, often simultaneously, thus teaching people how to work their way through different systems. It therefore brings people into touch with the real world; and, hence, equips them for the future.  Initially, young adults in their late teens might not seem to have the expertise or knowledge to impart to others that say a teacher or agriculturalist or nurse would have, but they do have many skills that can help  any skills that can help others. And in the absence of any particular talent, their energy and enthusiasm can be harnessed for the benefit of their fellow human beings, and ultimately themselves. From all this, the gain to any community no matter how many volunteers are involved is immeasurable.  Employers will generally look favourably on people who have shown an ability to work as part of a team. It demonstrates a willingness to learn and an independent spirit, which would be desirable qualities in any employee. So to satisfy employers' demands for experience when applying for work, volunteering can act as a means of gaining experience that might otherwise elude would-be workers and can ultimately lead to paid employment and the desired field.  The knock-on effect of volunteering on the lives of individuals can be profound. Voluntary work helps foster independence and imparts the ability to deal with different situations, often simultaneously, thus teaching people how to work their way through different systems. It therefore brings people into touch with the real world; and, hence, equips them for the future.  Initially, young adults in their late teens might not seem to have the expertise or knowledge to impart to others that say a teacher or agriculturalist or nurse would have, but they do have many skills that can help  any skills that can help others. And in the absence of any particular talent, their energy and enthusiasm can be harnessed for the benefit of their fellow human beings, and ultimately themselves. From all this, the gain to any community no matter how many volunteers are involved is immeasurable.  Employers will generally look favourably on people who have shown an ability to work as part of a team. It demonstrates a willingness to learn and an independent spirit, which would be desirable qualities in any employee. So to satisfy employers' demands for experience when applying for work, volunteering can act as a means of gaining experience that might otherwise elude would-be workers and can ultimately lead to paid employment and the desired field.  
6. The word "prerequisites" in the passage mostly means ____

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

The story of gold is an adventure involving kings, queens, pirates, explores, conquerors, andthe native peoples they conquered. Throughout history, gold had (1)_____a magic spellover those it touch. Gold is beautiful and rare; a soft shiny metal that can be moulded intomany(2)_____.It has been used for money, jewellery, and to decorate special buildings suchas palaces and places of worship. (3)_____the precious metal was discovered, prospectorsrushed to mine it, starting new cities and countries as they went. Gold and the people who love it have helped shape the world we live in today. Gold is one of many elements, orsubstances that cannot be changed by normal chemical (4)_____, that are found in theEarth’s crust. Gold has a warm, sunny colour and (5)_____it does not react (6)_____air,water, and most chemicals, its shine never fades. In its natural (7) _____, gold is soft andeasily shaped. When heated to 1,062 Celsius it melts and can be poured(8)_____ moulds toform coins, gold bars, and other objects. Stories have been told, movies (9)_____andlegends born about the (10)_____of the world’s great gold deposits. It is a saga of dreams,greed, ambition and exploration.

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A team of social psychologists from California has spent six years studying the reactions of people in cities around the world to different situations. The results show that cities where people have less money generally have friendlier populations. Rio de Janeiro in Brazil, which is often known for its crime, comes out top, and the capital of Malawi, Lilongwe, comes third. But what makes one city friendlier than another? The psychologists from California State University say it has got more to do with the environment than culture or nationality. They carried out a study into the way locals treated strangers in 23 cities around the world. The team conducted their research through a series of tests, where they dropped pens or pretended, they were blind and needed help crossing the street. The study concludes that people are more helpful in cities with a more relaxed way of life such as Rio. While they were there, researchers received help in 93 percent of cases, and the percentage in Lilongwe was only a little lower. However, richer cities such as Amsterdam and New York are considered the least friendly. Inhabitants of Amsterdam helped the researchers in 53 percent of cases and in New York just 44 percent. The psychologists found that, in these cities, people tend to be short of time, so they hurry and often ignore strangers.
4. The word “relaxed” in paragraph 4 mostly means ________

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Around 200 million people are employed in tourism worldwide, making it the largest industry in the modern global (25) _____. It is estimated that three-quarters of a billion people go on holiday each year, and industry planners expect this figure to double by 2020. Some of the biggest beneficiaries are less developed countries, where it is often their main source of income. (26) _____, along with the economic benefits, this mass movement of people has resulted in threats to the environment. People often forget the damage caused by carbon dioxide emissions from aircraft, (27) _____ contribute directly to global warming. Deforestation has cleared land in order to build hotels, airport and roads, and this has destroyed wildlife. In some areas, water shortages are now common because of the need to fill swimming pools and water golf courses for tourists. By pushing up prices for goods and services, tourism can also be (28) _____ to the people who live in tourist destinations. In response to these concerns, some travel operators now offer environmental friendly holidays. Many of these aim to reduce the negative effect of tourism by (29) _____ only hotels that have invested equipment to recycle waste and use energy and water efficiently. Increasingly, tourists are also being reminded to show respect for the customs of the people whose countries they are going to visit, and to support local businesses, such as restaurants and shops, which depend on tourism for their main income

Nam is living in Hanoi city with her family. She is in grade 6. In summer, she doesn’t go to school. Because the weather is very hot, she often goes swimming with some of her friends. She sometimes goes to the park to fly the kite or goes fishing. She also goes on vacation with her family. Her favorite place is Ha Long. Nam likes summer very much.

Which place does she like best?

Choose the letter A, B, C or D to complete the passage below

Hello everyone, I am......(1)..... teacher, I……..(2)…….at a primary school in the USA. In the morning I......(3)..... up at seven o'clock. I have breakfast with bread and a cup of coffee. Then I go to work. I teach his students French. I have lunch at school. I go home.....(4)...... one o'clock in the afternoon. I don’t work on Saturdays and Sundays. I go to the cinema, or …….(5)……… a book. I like the books very much. I have a sister in Oxford and a brother in London.

5. I go to the cinema, or …….(5)……… a book.

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Many parents believe that they should begin to teach their children to read when they are slightly more than toddlers. This is fine if the child chows a real interest but forcing a child could be counter- productive if she isn't ready. Wise parents will have a hopeful attitude and take the lead from their child. (25) _____ they should provide is a selection of stimulating toys, books and other activities. Nowadays there is plenty of good material available for young children, and of course, seeing plenty of books in use them to read. Of course, books are no longer the only source of stories and information. There is also a huge range of videos, which can reinforce and extend the pleasure a child finds in a book and are (26) _____ helping to increase vocabulary and concentration. Television gets a bad review as far as children are concerned, mainly because too many spend too much time watching programmes not intended for their age (27) _____. Too many television programmes induce an incurious, uncritical attitude that is going to make learning much more difficult. (28) _____, discriminating viewing of programmes designed for young children can be useful. Just as adults enjoy reading a book after seeing it serialised on television, so children will pounce on books which (29) _____ their favourite television characters and videos can add a new dimension to a story known from a book

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Some people think of 'traditional ' gender roles as being like a 1950s TV sitcom: Dad puts (8) _____ his suit and goes to the office, while Mum, in her apron, stays at home and (9) ____ the housework. But for most of human history, it has taken the efforts of both men and women, whether working in an office (10) _____ in the fields, to look after the family. And that's the situation to which we now seem to be returning. By 2050, women will make up 47% of the workforce in the United States, up from 30% in 1950. But some experts are predicting that, at (11) _____ in the short term, the number of women in the workforce may actually overtake the number of men. What's the reason? During the economic recession that began in 2008, many jobs disappeared from industries traditionally dominated by male workers, such as manufacturing. Unless many more manual manufacturing jobs (12) _____, it may be that women, who traditionally work in healthcare, education and other service industries, will take the lead in the labour market

Fill in the gap with the most suitable provided words

There are (1)................. seasons in North of Vietnam. I like the spring and (2) ............ most. In the spring, it is warm and there are many kinds of (3) .............. blowing. I live in the countryside so the air is very fresh in the spring. The view looks like a beautiful picture. In the summer, it is very (4)............. I and my friends usually go (5)............... and (6) ................. our kites. Sometimes we (7) ............... fishing. I don't like the (8) .................. because the (9).................... is very cold and there is a lot of cold wind. I like living in the (10)......................

(7).....................

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
The story of gold is an adventure involving kings, queens, pirates, explores, conquerors, andthe native peoples they conquered. Throughout history, gold had (1)_____a magic spellover those it touch. Gold is beautiful and rare; a soft shiny metal that can be moulded intomany(2)_____.It has been used for money, jewellery, and to decorate special buildings suchas palaces and places of worship. (3)_____the precious metal was discovered, prospectorsrushed to mine it, starting new cities and countries as they went. Gold and the people who love it have helped shape the world we live in today. Gold is one of many elements, orsubstances that cannot be changed by normal chemical (4)_____, that are found in theEarth’s crust. Gold has a warm, sunny colour and (5)_____it does not react (6)_____air,water, and most chemicals, its shine never fades. In its natural (7) _____, gold is soft andeasily shaped. When heated to 1,062 Celsius it melts and can be poured(8)_____ moulds toform coins, gold bars, and other objects. Stories have been told, movies (9)_____andlegends born about the (10)_____of the world’s great gold deposits. It is a saga of dreams,greed, ambition and exploration

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
Some years ago, my daughter was studying English at a university on the south coast. One evening, she  phoned to (1)_____ me that what she really wanted to do was a travel round the world, (2)___she was looking into the possibility of working in another country. She had seen several advertisements in the paper for student teachers of English abroad, and she was interested in one in Italy, (3)____she was desperate to visit. She decided that this would be a good way to achieve her ambition, so she was writing to apply for the job. The reply (4)_______a long time to arrive, but eventually she received a letter asking if she would go for an interview in London the following week. She was so excited that she immediately got in touch with the school owner and agree to attend the interview . She was determined that nothing would prevent her (5) ______ doing what she had set out to do

Choose the best answer:
The project is almost completed and needs very little work to finish them off.

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Phong Nha-Ke Bang National Park is located in the middle of the Annamite Mountain Range in Quang Binh province, Vietnam, and shares its boundary (23) ____ the Hin Namno Nature Reserve in the Lao PDR to the west. The property (24) ____ an area of 123,326 ha and contains terrestrial and aquatic habitats, primary and secondary forest, sites of natural regeneration, tropical dense forests and savanna and is rich in large, often spectacular and scientifically significant caves.  The property contains and protects over 104 km of caves and underground rivers making (25) ____ one of the most outstanding limestone karst ecosystems in the world. (26) ____ karst formation has evolved since the Palaeozoic period (some 400 million years ago) and as such is the oldest major karst area in Asia. (27) ____ to massive tectonic changes, the karst landscape is extremely complex, comprising a series of rock types that are interbedded in complex ways and with many geomorphic features. The karst landscape is not only complex but also ancient with high geodiversity and geomorphic features of considerable significance

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The temperature was constantly changing, and the elderly in my village come down with the flu

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It is estimated that about three billion people use the internet computer network around the world. Most people use the Internet to (25) _______information or for entertainment. A new study, however, shows US that almost 10% of Internet users are using it SO often that it is seriously harming their lives. The study says that these people may find it difficult to stop using the Internet because they have become addicted. Someone who is addicted finds it extremely difficult to stop (26) _______activity. According to a psychologist in the field. 30% of Internet users claim that they use the Internet to escape from (27) _______or emotions. The study also shows that having a chat or discussion with strangers on the Internet is one of the most (28) _______activities.

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In 2014, the study conducted by Shi Ping Liu and colleagues helps to shed light on this mystery

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A recent issue of a language learning magazine has consulted a number of experts in the (16)_______ of second language acquisition. Their advice may prove invaluable for those (17)_______ a language course. One suggestion is that you (18)_______ whether you are likely to be successful at learning a language. Did you enjoy studying languages at school, for example? Do you have enough time to learn a language? The major (19)_______ will be your own time and effort. If proof of your level of proficiency is important you must make sure that the course on offer leads to a (20)_______ qualification. Also, be realistic in your (21)_______ . If you don't set achievable aims you are more likely to give up. Do not be deceived (22)_______ thinking that the most expensive courses are the best. (23)_______ around to get the best possible value for money. You should also bear in mind that the quicker you learn a language the more quickly you forget it. Sandra Miller, a French teacher, tried to teach herself German by enrolling on a (24)_______ course. Already fluent in four languages and with a sound knowledge of teaching methodology her chances of making progress were high. Three years on she remembers very little. She feels her biggest mistake was not to follow (25)_______ her first experience. "I should have consolidated what I'd learn by continuing to study, even if it were by myself."

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A healthy diet is essential for maintaining a healthy body and a healthy lifestyle. Though some doctors and health experts disagree on some components of a healthy diet, other parts are almost universally recognized. For example, all agree that a healthy diet includes necessary nutrients - ingredients that help keep bodies strong and healthy. Human bodies need more than 50 different kinds of nutrients, including vitamins, minerals, water, and fiber.  Vitamins are natural substances found in plants and animals. A body cannot make its own vitamins, so it must get them from food. Vitamins do not supply energy. However, they are useful substances that the body needs. Vitamin A, for example, helps eyes see better. Vitamin B develops protein needed in muscle growth. Vitamin C helps support the healing process for certain illnesses. Finally, Vitamin D helps strengthen teeth and bones  Minerals help balance bodily fluids, such as blood and water. They are also an important part of the iron in blood. There are seven major minerals that bodies need in large amounts, and ten minor, or trace, minerals, which bodies need in smaller amounts. Scientists are still studying many minerals, such as nickel and cobalt, to try to understand exactly how they affect the human body.  Some people do not include water as a nutrient, but it is vital for a healthy body to function properly. Humans can live for several days without food, but only for two or three days without water. People who play sports or exercise a lot often fail to drink enough water. This can cause their muscles to become overly tired. If not enough water is taken in during very strenuous exercise, death may in fact result. Scientists have learned much about the importance of fiber in recent years. They now say that many people do not get enough fiber in their diets. The average many people should eat between 30 and 40 grams of fiber each day, twice as much as the average person currently gets. Though fiber is not digested or absorbed, it helps rid the body of waste products. Fiber helps control weight and maintain normal levels of important substances such as cholesterol and blood sugar. Fiber is found in whole-grain breads and cereals, as well as nuts, beans, fruits, and vegetables. There are several different kinds of fiber, and they each help in different ways. Two kinds of fiber, called pectins and gums, are needed to help control body fats, cholesterol, and carbohydrates (a type of nutrient that produces energy). Apples, cranberries, and cherries are good sources of pectin. Oatmeal and legumes are good s general, fresh fruits and raw vegetables provide more fiber than peeled fruits and cooked vegetables. According to dieticians, two servings of vegetables and two servings of whole grains (like whole wheat bread) each day will provide enough fiber for most adults.  In summary, recommendations for a healthy diet include drinking lots of liquids while eating fiber from a wide variety of foods. This way, the body will not be getting too much of one kind of fiber and too little of another kind. If a person is not eating enough fiber now, it is best to change one's diet gradually. Above all, experts warn, do not depend on getting fiber from pills or tablets. A whole bottle would need to be consumed to see any benefit. 
7. What is the main purpose of paragraph 5?