Political and family values within society have impacted upon the modern family structure. Traditionally, it has been the man’s role to be the breadwinner for the family- providing the funds to pay for food and shelter. However, due to the many new and unique responsibilities placed upon families, in numerous cases both men and women- fathers and mothers- have had to enter the workforce. Generally, the reasons for both being involved in the workforce revolve around the need to add to the family’s current financial base. To a lesser extent, the need to interact with “adults” in a stimulating work environment is another popular reason. Whatever their reasons, for many families, the decision for father and mother to go out of home and join the labor force has led to a number of side effects within the home which, in turn, impact upon their performance as employees. Many researchers agree that attitudes towards work are carried over into family life. This spillover can be positive or negative. Positive spillover refers to the spread of satisfaction and positive stimulation at work resulting in high levels of energy and satisfaction at home. If the amount of research is to be taken as an indication, it would seem that positive spillover is not a dominant occurrence in the workplace with most research focusing on the effects of negative spillover. Often pointing out the incompatible nature of work and family life, the research focuses on problems and conflict at work which has the effect of draining and preoccupying the individual, making it difficult for him or her to participate fully in family life.
Social scientists have devised a number of theories in an attempt to explain the work-family dynamic. Compensation theory is one which has been widely used. It assumes that the relationship between work and family is negative by pointing out that high involvement in one sphere- invariably the work sphere- leads to low involvement in the other. As an individual advances within a career, demands typically fluctuate from moderate to more demanding and if the advancing worker has younger children, this shift in work responsibilities will usually manifest itself in the form of less time spent with the family. Researchers subscribing to this theory point out that the drain on family time is significantly related to work-family conflict with an escalation in conflict, as the number of families increase.

According to the passage, positive spillover__________  .

     

The classic Neanderthals, who lived between about 70,000 and 30,000 years ago, shared a number of special characteristics. Like any biological population, Neanderthals also showed variation in the degree to which those characteristics were expressed. Generally, they were powerfully built, short and stocky, with the lower parts of their arms and legs short in relation to the upper parts, as in modern peoples who live in cold environments. Neanderthal skulls were distinctive, housing brains even larger on average than those of modern humans, a feature that may have had more to do with their large, heavy bodies than with superior intelligence. Seen from behind, Neanderthal skulls look almost spherical, but from the side they are long and flattened often with a bulging back. 
The Neanderthal face, dominated by a projecting and full nose, differed clearly from the faces of other hominids; the middle parts appear to be pulled forward (or the sides pulled back), resulting in a rather streamlined face shape. This peculiarity may have been related to the greater importance (in cultural activities as well as food processing) of the front teeth, which are large and part of a row of teeth that lies well forward in the head; it may reflect a reduction in importance of certain jaw muscles operating at the sides of the face; or it may reflect an adaptation to cold. Whether it results from any or all of these three factors or from other, undiscovered causes, this midfacial projection is so characteristic that it unfailingly identifies a Neanderthal to the trained eye. Neanderthal teeth are much more difficult to characterize: the front teeth are large, with strong roots, but the back teeth may be relatively small. This feature may have been an adaptation to cope with heavy tooth wear.

What does the passage mainly discuss?

Read the following passage and do the tasks below.

Southeast Asian Countries’ PISA Rankings 2012

Once every three years, 15-year-olds from around the world are tested on how well they know their reading, maths and science. This is called the Programme for International Student Assessment, or PISA for short. It is run by the Organization for Economic Coopertation and Development or OECD. Over half a million students from 65 countries and economies took part in PISA 2012. The result of the latest PISA 2012 had been announced on 3 December 2013. Only five out of ten ASEAN countries participated in PISA 2012. They were Indonesia, Malaysia, Singapore, Thailand and Vietnam.
- Singapore ranked 2nd in maths and 3rd in reading and science;
- Vietnam, entered PISA tests for the first time, ranked 8th in science, 17th in maths and 19th in reading;
- Thailand has been the participant in the PISA tests since 2000. It ranked 47 in science, 48th in reading and 50 in maths;
- Malaysia got 52th in maths, 53rd in science and 59th in reading;
- Indonesia got 61st in reading and got 64th in maths and science.
Singapore’s 15-year-old students came in the top five in every area. Vietnamese students scored very well on all three PISA subjects. Thailand, Indonesia and Malaysia ranked below average for the 65 countries assessed. The next administration of PISA is in 2015 and results will be reported at the end of 2016.

How often is the PISA testing held?

Tulips are Old World, rather than New World, plants, with the origins of the species lying in Central Asia. They became an integral part of the gardens of the Ottoman Empire from the sixteenth century onward, and, soon after, part of European life as well. Holland, in particular, became famous for its cultivation of the flower.
A tenuous line marked the advance of the tulip to the New World, where it was unknown in the wild. The first Dutch colonies in North America had been established in New Netherlands by the Dutch West India Company in 1624, and one individual who settled in New Amsterdam (today's Manhattan section of New York City) in 1642 described the flowers that bravely colonized the settlers' gardens. They were the same flowers seen in Dutch still-life paintings of the time: crown imperials, roses, carnations, and of course tulips. They flourished in Pennsylvania too, where in 1698 William Penn received a report of John Tateham's "Great and Stately Palace”, its garden full of tulips.
By 1760, Boston newspapers were advertising 50 different kinds of mixed tulip "roots”. But the length of the journey between Europe and North America created many difficulties. Thomas Hancock, an English settler, wrote thanking his plant supplier for a gift of some tulip bulbs from England, but his letter the following year grumbled that they were all dead.
Tulips arrived in Holland, Michigan, with a later wave of early nineteenth-century Dutch immigrants who quickly colonized the plains of Michigan. Together with many other Dutch settlements, such as the one at Pella, Iowa, they established a regular demand for European plants. The demand was bravely met by a new kind of tulip entrepreneur, the traveling salesperson. One Dutchman, Hendrick Van De Schoot, spent six months in 1849 traveling through the United States taking orders for tulip bulbs. While tulip bulbs were traveling from Europe to the United States to satisfy the nostalgic longings of homesick English and Dutch settlers, North American plants were traveling in the opposite direction. In England, the enthusiasm for American plants was one reason why tulips dropped out of fashion in the gardens of the rich and famous.

The passage mentions which of the following as a problem associated with the importation of tulips into North America?

Read the passage, and choose the correct answer A, B, C or D for each question.

Approximately one in two thousand people in Viet Nam has a significant hearing loss. Students who have been deafened in early childhood can be very different to students who have lost hearing later in life in terms of educational disadvantage. For example, their range of vocabulary may be limited, which in turn may affect their level of English literacy.

Deaf and hard of hearing students can sometimes prefer visual learning strategies. This can be a challenge in an environment where much essential information is delivered exclusively by word of mouth.

Students with a hearing loss may need to use assistive technology to participate in class. This assistive technology can be the laptop where software such as Skype can be used to deliver interpreters or captioning. For some it will be in the form of listening devices. For others, it will be a combination of technology that includes both listening devices and computer based software.

The impact of hearing loss can cause delays in receiving learning material. Students who need information transcribed from tape must sometimes wait for a significant period of time for this to happen. This needs to be considered in terms of developing suitable timelines for the completion of work for each student.

Students with hearing loss may appear isolated in the learning environment. The possibility for social contact and interaction with other students is often limited, and this isolation or separateness may have an impact on learning. Participation and interaction in tutorials may be limited. Students who cannot hear the flow and nuances of rapid verbal exchange will be at a disadvantage.

All of the following are true according to the text EXCEPT that________________.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to choose the word or phrase that best fits each of the numbered blanks.

Mai is my neighbor. She turned sixteen recently and her parents (46) _______ a birthday party for her. I was one of those invited. The party began at about three (47) ­­_______ the afternoon. There were about twenty of us gathering in Mai’s house. She didn’t like having the party at a restaurant (48) ­­_______ it is noisy and expensive.

We gave presents to Mai and she (49) ­­_______ opened them. It must really be exciting to receive all those presents. After that Mai’s mother served us soft drinks and biscuits. We then listened to music and played cards. The winners were given prizes. At about four-thirty, Mai’s mother brought out the birthday cake. It was beautifully decorated with pink and white icing. (50) ­­_______ colorful candles sat in the middle of the cake. We all clapped our hands eagerly and sang “Happy Birthday” as she blew out the candles and cut the cake. We helped ourselves to slices of the delicious cake and sang all the songs that we knew.

Finally, at about six in the evening, the party came to an end. We were all tired but happy. The parents of other children came to collect them by motorbikes. I helped Mai and her mother clean up the mess we had made. After that, I walked home, which was only three doors away.

Câu 48: .....................

Homing pigeons are placed in a training program from about the time they are twenty-eight days of age. They are taught to enter the loft through a trap and to exercise above and around the loft, and gradually they are taken away for short distances in wicker baskets and released. They are then expected to find their way home in the shortest possible time. In their training flights or in actual races, the birds are taken to prearranged distant points and released to find their way back to their own lofts. Once the birds are liberated, their owners, who are standing by at the home lofts, anxiously watch the sky for the return of their entries. Since time is of the essence, the speed with which the birds can be induced to enter the loft trap may make the difference between gaining a win or a second place.
The head of a homing pigeon is comparatively small, but its brain is one quarter larger than that of the ordinary pigeon. The homing pigeon is very intelligent and will persevere to the point of stubbornness some have been known to fly a hundred miles off course to avoid a storm.
Some homing pigeon experts claim that this bird is gifted with a form of built-in radar that helps it find its own loft after hours of flight, for hidden under the head feathers are two very sensitive ears, while the sharp, prominent eyes can see great distances in daytime.
Why do homing pigeons fly home? They are not unique in this inherent skill: it is found in most migratory birds, in bees, ants, toads, and even turtles, which have been known to travel hundreds of miles to return to their homes. But in the animal world, the homing pigeon alone can be trusted with its freedom and trained to carry out the missions that people demand.

According to the passage, what is the difference between a homing pigeon and an ordinary one?

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.

Why is it that many teenagers have the energy to play computer games until late at night but can't find the energy to get out of bed (1) ________ for school? According to a new report, today's generation of children are in danger of getting so (2)_______ sleep that they are putting their mental and physical health at (3)_______. Adults can easily survive on seven to eight hours' sleep a night, (4)_______teenagers require nine or ten hours. According to medical experts, one in five youngsters (5)________ anything between two and five hours' sleep a night less than their parents did at their age

2 is ..................

Homing pigeons are placed in a training program from about the time they are twenty-eight days of age. They are taught to enter the loft through a trap and to exercise above and around the loft, and gradually they are taken away for short distances in wicker baskets and released. They are then expected to find their way home in the shortest possible time. In their training flights or in actual races, the birds are taken to prearranged distant points and released to find their way back to their own lofts. Once the birds are liberated, their owners, who are standing by at the home lofts, anxiously watch the sky for the return of their entries. Since time is of the essence, the speed with which the birds can be induced to enter the loft trap may make the difference between gaining a win or a second place.
The head of a homing pigeon is comparatively small, but its brain is one quarter larger than that of the ordinary pigeon. The homing pigeon is very intelligent and will persevere to the point of stubbornness some have been known to fly a hundred miles off course to avoid a storm.
Some homing pigeon experts claim that this bird is gifted with a form of built-in radar that helps it find its own loft after hours of flight, for hidden under the head feathers are two very sensitive ears, while the sharp, prominent eyes can see great distances in daytime.
Why do homing pigeons fly home? They are not unique in this inherent skill: it is found in most migratory birds, in bees, ants, toads, and even turtles, which have been known to travel hundreds of miles to return to their homes. But in the animal world, the homing pigeon alone can be trusted with its freedom and trained to carry out the missions that people demand.

In paragraph 3, the pronoun “it” refers to which of the following?

The classic Neanderthals, who lived between about 70,000 and 30,000 years ago, shared a number of special characteristics. Like any biological population, Neanderthals also showed variation in the degree to which those characteristics were expressed. Generally, they were powerfully built, short and stocky, with the lower parts of their arms and legs short in relation to the upper parts, as in modern peoples who live in cold environments. Neanderthal skulls were distinctive, housing brains even larger on average than those of modern humans, a feature that may have had more to do with their large, heavy bodies than with superior intelligence. Seen from behind, Neanderthal skulls look almost spherical, but from the side they are long and flattened often with a bulging back. 

The Neanderthal face, dominated by a projecting and full nose, differed clearly from the faces of other hominids; the middle parts appear to be pulled forward (or the sides pulled back), resulting in a rather streamlined face shape. This peculiarity may have been related to the greater importance (in cultural activities as well as food processing) of the front teeth, which are large and part of a row of teeth that lies well forward in the head; it may reflect a reduction in importance of certain jaw muscles operating at the sides of the face; or it may reflect an adaptation to cold. Whether it results from any or all of these three factors or from other, undiscovered causes, this midfacial projection is so characteristic that it unfailingly identifies a Neanderthal to the trained eye. Neanderthal teeth are much more difficult to characterize: the front teeth are large, with strong roots, but the back teeth may be relatively small. This feature may have been an adaptation to cope with heavy tooth wear.

The paragraph following this passage most probably discusses

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions.

In American, although most men still do less housework than their wives, that gap has been halved since the 1960s. Today, 41 per cent of couples say they share childcare equally, compared with 25 percent in 1985. Men's greater involvement at home is good for their relationships with their spouses, and also good for their children. Hands-on fathers make better parents than men who let their wives do all the nurturing and childcare. They raise sons who are more expressive and daughters who are more likely to do well in school - especially in math and science.

In 1900, life expectancy in the United States was 47 years, and only four per cent of the population was 65 or older. Today, life expectancy is 76 years, and by 2025, it is estimated about 20 per cent of the U.S. population will be 65 or older. For the first time, a generation of adults must plan for the needs of both their parents and their children. Most Americans are responding with remarkable grace. One in four households gives the equivalent of a full day a week or more in unpaid care to an aging relative, and more than half say they expect to do so in the next 10 years. Older people are less likely to be impoverished or incapacitated by illness than in the past, and have more opportunity to develop a relationship with their grandchildren.

Even some of the choices that worry people the most are turning out to be manageable. Divorce rates are likely to remain high, and in many cases marital breakdown causes serious problems for both adults and kids. Yet when parents minimize conflict, family bonds can be maintained. And many families are doing this. More non-custodial parents are staying in touch with their children. Child-support receipts are rising. A lower proportion of children from divorced families are exhibiting problems than in earlier decades. And stepfamilies are learning to maximize children's access to supportive adults rather than cutting them off from one side of the family.

Nowadays, ____ of men help take care of children.

Political and family values within society have impacted upon the modern family structure. Traditionally, it has been the man’s role to be the breadwinner for the family- providing the funds to pay for food and shelter. However, due to the many new and unique responsibilities placed upon families, in numerous cases both men and women- fathers and mothers- have had to enter the workforce. Generally, the reasons for both being involved in the workforce revolve around the need to add to the family’s current financial base. To a lesser extent, the need to interact with “adults” in a stimulating work environment is another popular reason. Whatever their reasons, for many families, the decision for father and mother to go out of home and join the labor force has led to a number of side effects within the home which, in turn, impact upon their performance as employees. Many researchers agree that attitudes towards work are carried over into family life. This spillover can be positive or negative. Positive spillover refers to the spread of satisfaction and positive stimulation at work resulting in high levels of energy and satisfaction at home. If the amount of research is to be taken as an indication, it would seem that positive spillover is not a dominant occurrence in the workplace with most research focusing on the effects of negative spillover. Often pointing out the incompatible nature of work and family life, the research focuses on problems and conflict at work which has the effect of draining and preoccupying the individual, making it difficult for him or her to participate fully in family life.
Social scientists have devised a number of theories in an attempt to explain the work-family dynamic. Compensation theory is one which has been widely used. It assumes that the relationship between work and family is negative by pointing out that high involvement in one sphere- invariably the work sphere- leads to low involvement in the other. As an individual advances within a career, demands typically fluctuate from moderate to more demanding and if the advancing worker has younger children, this shift in work responsibilities will usually manifest itself in the form of less time spent with the family. Researchers subscribing to this theory point out that the drain on family time is significantly related to work-family conflict with an escalation in conflict, as the number of families increase.

The main reason fathers and mothers join the workforce is ________.

Read the text carefully, then choose the correct answers.

A YEAR WITH OVERSEAS VOLUNTEERS

I was with Overseas Volunteers (OV) for a year after leaving university, and I was sent to an isolated village in Chad, about 500 km from the capital N'Djamena. Coming from' a rich country, I got quite a shock as conditions were much harder than I had expected. But after a few days I soon got used to living there. The people were always very friendly and helpful, and soon I began to appreciate how beautiful the countryside was.

One of my jobs was to supply the village with water. The well was a long walk away. And the women used to spend a long time every day carrying heavy pots backwards and forwards. So I contacted organization and arranged to have some pipes delivered. We built a simple pipeline and a pump, and it worked first time. It wasn't perfect - there were a few leaks, but it made a great difference to the villagers, who had never had running water before. And not only did we have running water, but in the evenings it was hot, because the pipe had been lying in the sun all day. All in all, I think my time with OV was a good experience. Although it was not well-paid, it was well worth doing, and I would recommend it to anyone who was considering working for a charity.

 The author ______.

The classic Neanderthals, who lived between about 70,000 and 30,000 years ago, shared a number of special characteristics. Like any biological population, Neanderthals also showed variation in the degree to which those characteristics were expressed. Generally, they were powerfully built, short and stocky, with the lower parts of their arms and legs short in relation to the upper parts, as in modern peoples who live in cold environments. Neanderthal skulls were distinctive, housing brains even larger on average than those of modern humans, a feature that may have had more to do with their large, heavy bodies than with superior intelligence. Seen from behind, Neanderthal skulls look almost spherical, but from the side they are long and flattened often with a bulging back. 
The Neanderthal face, dominated by a projecting and full nose, differed clearly from the faces of other hominids; the middle parts appear to be pulled forward (or the sides pulled back), resulting in a rather streamlined face shape. This peculiarity may have been related to the greater importance (in cultural activities as well as food processing) of the front teeth, which are large and part of a row of teeth that lies well forward in the head; it may reflect a reduction in importance of certain jaw muscles operating at the sides of the face; or it may reflect an adaptation to cold. Whether it results from any or all of these three factors or from other, undiscovered causes, this midfacial projection is so characteristic that it unfailingly identifies a Neanderthal to the trained eye. Neanderthal teeth are much more difficult to characterize: the front teeth are large, with strong roots, but the back teeth may be relatively small. This feature may have been an adaptation to cope with heavy tooth wear.

In paragraph 2, the author uses the expression “heavy tooth wear” to imply that the Neanderthals _________

Read the passage, and choose the correct answer A, B, C or D for each question.

Approximately one in two thousand people in Viet Nam has a significant hearing loss. Students who have been deafened in early childhood can be very different to students who have lost hearing later in life in terms of educational disadvantage. For example, their range of vocabulary may be limited, which in turn may affect their level of English literacy.

Deaf and hard of hearing students can sometimes prefer visual learning strategies. This can be a challenge in an environment where much essential information is delivered exclusively by word of mouth.

Students with a hearing loss may need to use assistive technology to participate in class. This assistive technology can be the laptop where software such as Skype can be used to deliver interpreters or captioning. For some it will be in the form of listening devices. For others, it will be a combination of technology that includes both listening devices and computer based software.

The impact of hearing loss can cause delays in receiving learning material. Students who need information transcribed from tape must sometimes wait for a significant period of time for this to happen. This needs to be considered in terms of developing suitable timelines for the completion of work for each student.

Students with hearing loss may appear isolated in the learning environment. The possibility for social contact and interaction with other students is often limited, and this isolation or separateness may have an impact on learning. Participation and interaction in tutorials may be limited. Students who cannot hear the flow and nuances of rapid verbal exchange will be at a disadvantage.

Assistive technology can help students with a hearing loss ________________.

Read the text carefully, then choose the correct answers.

A YEAR WITH OVERSEAS VOLUNTEERS

I was with Overseas Volunteers (OV) for a year after leaving university, and I was sent to an isolated village in Chad, about 500 km from the capital N'Djamena. Coming from' a rich country, I got quite a shock as conditions were much harder than I had expected. But after a few days I soon got used to living there. The people were always very friendly and helpful, and soon I began to appreciate how beautiful the countryside was.

One of my jobs was to supply the village with water. The well was a long walk away. And the women used to spend a long time every day carrying heavy pots backwards and forwards. So I contacted organization and arranged to have some pipes delivered. We built a simple pipeline and a pump, and it worked first time. It wasn't perfect - there were a few leaks, but it made a great difference to the villagers, who had never had running water before. And not only did we have running water, but in the evenings it was hot, because the pipe had been lying in the sun all day. All in all, I think my time with OV was a good experience. Although it was not well-paid, it was well worth doing, and I would recommend it to anyone who was considering working for a charity.

How did the author feel when he arrived in the village?

Throughout history people have always communicated with one another, not only by speech but also by movements of the hands and body. It is, however, only (11)_____ the last few years that these aspects of communication have been studied at all widely. This type of communication is known as body language or non-verbal communication. People sometimes wonder (12)______you can learn how body language works. It is of course possible to read books on the subject but you also need to without time observing people’s movements. A railway station is a particular good place for such observation, as here people can be seen openly expressing eagerness, sorrow, delight, impatience and many other human emotions by (13)_________ of movement.

If you turn down the sound on your television set and try to understand (14)______is happening simply by watching the picture you will learn even more about communication spend words. By turning the sound back up every five (15)_________ or so, it is possible to check how accurate your understanding is.

(15).....................

Read the passage, and choose the correct answer A, B, C or D for each question.

Approximately one in two thousand people in Viet Nam has a significant hearing loss. Students who have been deafened in early childhood can be very different to students who have lost hearing later in life in terms of educational disadvantage. For example, their range of vocabulary may be limited, which in turn may affect their level of English literacy.

Deaf and hard of hearing students can sometimes prefer visual learning strategies. This can be a challenge in an environment where much essential information is delivered exclusively by word of mouth.

Students with a hearing loss may need to use assistive technology to participate in class. This assistive technology can be the laptop where software such as Skype can be used to deliver interpreters or captioning. For some it will be in the form of listening devices. For others, it will be a combination of technology that includes both listening devices and computer based software.

The impact of hearing loss can cause delays in receiving learning material. Students who need information transcribed from tape must sometimes wait for a significant period of time for this to happen. This needs to be considered in terms of developing suitable timelines for the completion of work for each student.

Students with hearing loss may appear isolated in the learning environment. The possibility for social contact and interaction with other students is often limited, and this isolation or separateness may have an impact on learning. Participation and interaction in tutorials may be limited. Students who cannot hear the flow and nuances of rapid verbal exchange will be at a disadvantage.

Learning environment can have negative impact on deaf students when  _____________.

Read the text carefully, then choose the correct answers.

A YEAR WITH OVERSEAS VOLUNTEERS

I was with Overseas Volunteers (OV) for a year after leaving university, and I was sent to an isolated village in Chad, about 500 km from the capital N'Djamena. Coming from' a rich country, I got quite a shock as conditions were much harder than I had expected. But after a few days I soon got used to living there. The people were always very friendly and helpful, and soon I began to appreciate how beautiful the countryside was.

One of my jobs was to supply the village with water. The well was a long walk away. And the women used to spend a long time every day carrying heavy pots backwards and forwards. So I contacted organization and arranged to have some pipes delivered. We built a simple pipeline and a pump, and it worked first time. It wasn't perfect - there were a few leaks, but it made a great difference to the villagers, who had never had running water before. And not only did we have running water, but in the evenings it was hot, because the pipe had been lying in the sun all day. All in all, I think my time with OV was a good experience. Although it was not well-paid, it was well worth doing, and I would recommend it to anyone who was considering working for a charity.

 What does the author think about his time with OV?

Political and family values within society have impacted upon the modern family structure. Traditionally, it has been the man’s role to be the breadwinner for the family- providing the funds to pay for food and shelter. However, due to the many new and unique responsibilities placed upon families, in numerous cases both men and women- fathers and mothers- have had to enter the workforce. Generally, the reasons for both being involved in the workforce revolve around the need to add to the family’s current financial base. To a lesser extent, the need to interact with “adults” in a stimulating work environment is another popular reason. Whatever their reasons, for many families, the decision for father and mother to go out of home and join the labor force has led to a number of side effects within the home which, in turn, impact upon their performance as employees. Many researchers agree that attitudes towards work are carried over into family life. This spillover can be positive or negative. Positive spillover refers to the spread of satisfaction and positive stimulation at work resulting in high levels of energy and satisfaction at home. If the amount of research is to be taken as an indication, it would seem that positive spillover is not a dominant occurrence in the workplace with most research focusing on the effects of negative spillover. Often pointing out the incompatible nature of work and family life, the research focuses on problems and conflict at work which has the effect of draining and preoccupying the individual, making it difficult for him or her to participate fully in family life.
Social scientists have devised a number of theories in an attempt to explain the work-family dynamic. Compensation theory is one which has been widely used. It assumes that the relationship between work and family is negative by pointing out that high involvement in one sphere- invariably the work sphere- leads to low involvement in the other. As an individual advances within a career, demands typically fluctuate from moderate to more demanding and if the advancing worker has younger children, this shift in work responsibilities will usually manifest itself in the form of less time spent with the family. Researchers subscribing to this theory point out that the drain on family time is significantly related to work-family conflict with an escalation in conflict, as the number of families increase.

The word "it" in the third paragraph refers to .

The classic Neanderthals, who lived between about 70,000 and 30,000 years ago, shared a number of special characteristics. Like any biological population, Neanderthals also showed variation in the degree to which those characteristics were expressed. Generally, they were powerfully built, short and stocky, with the lower parts of their arms and legs short in relation to the upper parts, as in modern peoples who live in cold environments. Neanderthal skulls were distinctive, housing brains even larger on average than those of modern humans, a feature that may have had more to do with their large, heavy bodies than with superior intelligence. Seen from behind, Neanderthal skulls look almost spherical, but from the side they are long and flattened often with a bulging back. 
The Neanderthal face, dominated by a projecting and full nose, differed clearly from the faces of other hominids; the middle parts appear to be pulled forward (or the sides pulled back), resulting in a rather streamlined face shape. This peculiarity may have been related to the greater importance (in cultural activities as well as food processing) of the front teeth, which are large and part of a row of teeth that lies well forward in the head; it may reflect a reduction in importance of certain jaw muscles operating at the sides of the face; or it may reflect an adaptation to cold. Whether it results from any or all of these three factors or from other, undiscovered causes, this midfacial projection is so characteristic that it unfailingly identifies a Neanderthal to the trained eye. Neanderthal teeth are much more difficult to characterize: the front teeth are large, with strong roots, but the back teeth may be relatively small. This feature may have been an adaptation to cope with heavy tooth wear.

The author describes the Neanderthals as being all of the following EXCEPT _________