Mr. Wang is the (only one) of the teachers (in) our university (who) (own) a car.（　）

A:only one B:in C:who D:own

Happiness can be described as a positive mood and a pleasant state of mind. According to recent polls (民意测试) , sixty to seventy percent of Americans consider themselves to be moderately happy and one in twenty persons feel very unhappy. Psychologists have been studying the factors that contribute to happiness. It is not predictable nor is a person in an apparently ideal situation necessarily happy. The ideal situation may have little to do with his actual feelings.
A good education and income are usually considered necessary for happiness. Though both may contribute, they are only chief factors if the person is seriously undereducated or actually suffering from lack of physical needs.
The rich are not likely to be happier than the middle-income group or even those with very low incomes. People with college educations are somewhat happier than those who did not graduate from high school, and it is believed that this is mainly because they have more opportunity to control their lives. Yet people with a high income and a college education may be less happy than those with the same income and no college education.
Poor health does not rule out happiness except for the severely disabled or those in pain. Learning to cope with a health problem can contribute to happiness. Those with a good sex life are happier in general, but those who have a loving, affectionate relationship are happier than those who rely on sex alone. Love has a higher correlation with happiness than any other factor.
It should be noted that people quickly get used to what they have, and they are happiest when they feel they are increasing their level no matter where it stands at a given time.
Children whose parents were happily married have happier childhoods yet they are not necessarily happier adults when they grow up.
The best formula for happiness is to be able to develop the ability to tolerate frustration, to have a personal involvement and commitment, and to develop self-confidence and self-esteem.

People with college education （　）

A:have less opportunity to control their lives B:have more opportunity to control their lives C:are not happier than those who have only an education at high school D:are much happier than those who did not graduate from high school

Euthanasia: a Heatedly Debated Topic "We mustn’’t delay any longer...?swallowing(吞咽) is difficult...and breathing, that’’s also difficult. Those muscles are weakening too...we mustn’’t delay any longer." These were the words of Dutchman(荷兰人) Cees van wendel de Joode asking his doctor to help him die. Affected with a serious disease, van Vendel was no longer able to speak clearly and he knew there was no hope of recovery and that his condition was rapidly deteriorating. Van Venders last three months of life before being given a final, lethal injection by his doctor were filmed and first shown on television last year in the Netherlands. The programme has since been bought by 20 countries and each time it is shown, it starts a nationwide debate on the subject. The Netherlands is the only country in Europe which permits euthanasia (安乐死) , although it is not technically legal there. However, doctors who carry out euthanasia under strict guidelines introduced by the Dutch Parliament(议会) two years ago are usually not prosecuted. The guidelines demand that the patient is experiencing extreme suffering, that there is no chance of a cure, and that the patient has made repeated requests for euthanasia. In addition to this, a second doctor must confirm(证实) that these criteria have been met and the death must be reported to the police department. Should doctors be allowed to take the live of others? Dr. Wilfred Van Oijen, Cees van Vendel’’s doctor, explains how he looks at the question: "Well, it’’s not as if I in planning to murder a crowd of people with a machine gun. In that case, killing is the worst thing I can imagine. But that’’s entirely different from my work as a doctor. I care for people and I try to ensure that they don’t suffer too much. That’’s very different thing. " Many people, though, are totally against the practice of euthanasia. Dr. Andrew Ferguson, Chairman of the organization Healthcare opposed to Euthanasia, says that "in the vast majority of euthanasia cases , what the patient is actually asking for is something else. They may want a health professional to open up communication for them with their loved ones or family—there’’s nearly always another question behind the question." Britain also has a strong tradition of hospices—special hospitals which care only for the dying and their special needs. Cicely Saunders, President of the National Hospice Council and a founder member of the hospice movement, argues that euthanasia doesn’’t take into account that there are ways of caring for the dying. She is also concerned that allowing euthanasia would undermine the need for care and consideration of a wide range of people; "It’’s very easy in society now for the elderly, the disabled (伤残的) and the dependent to feel that they are burdens, and therefore that they ought to opt(脱离) out. I think that anything that legally allows the shortening of life does make those people more vulnerable (脆弱的)." Many find this prohibition of an individual’’s right to the paternalistic (家长式的). Although they agree that life is important and should be respected, they feel that the quality of life should not be ignored. Dr. Van Oijen believes that people have the fundamental right to choose for themselves if they want to die: "What those people who oppose euthanasia are telling me is that dying people haven’t the right. And that when people are very ill, we are all afraid of their death. But there are situations where death is a friend. And in those cases, why not?" But "why not?" is a question which might cause strong emotion. The film showing Cees Van Vendel’’s death was both moving and sensitive. His doctor was clearly a family friend; his wife had only her husband’’s interests at heart. Some, however, would argue that it would be dangerous to use this particular example to support the case for euthanasia. Not all patients would receive such a high level of individual care and attention. When the author says "But why not? is a question might cause strong emotion," (the last para. )he may mean______.

A:Cees Van Vendel was a man with much emotion B:Cees Van Vendel’s doctor and wife were both sensitive C:many people oppose the standpoints of those who support the practice of euthanasia strongly D:only those who are full of emotion can say such words.

Infections outside the brain may speed memory decline in Alzheimer’ s disease, UK researchers say. The Southampton University researchers studied 222 elderly people with Alzheimer’ s for six months, and they found that getting infections in places like the chest or urinary tract (尿道) could lead to higher level of an inflammatory (引发炎症的) protein called turnout necrosis factor (TNF) in the blood, and double memory loss.
There were 110 of the 222 subjects who developed a total of 150 infections, in areas such as the chest, stomach and intestines (肠) and the urinary tract, which led to the production of TNF proteins. These are collectively known as acute systemic inflammation events (SIEs).
Subjects with one or more SIEs during the six months follow - up had two times the rate of cognitive decline from their baseline score at the start of the study compared with those who had no SIE. And those patients who had high baseline levels of TNF and then suffered an SIE over the following six months had a 10 fold increase in the rate of cognitive decline compared to those who were SIE free.
Dr Susanne Sorensen, Head of Research, Alzheimer’ s Society said:
We know there might be a link between inflammatory processes and Alzheimer’ s but this is not yet fully understood.
"In the meantime it’ s important that older people, people with dementia treat any infection seriously and seek medical help in time. "Professor Clive Holmes at the University of Southampton, who led the research, said they had looked at patients with mild, moderate and severe Alzheimer’s disease.
"The worse the infection the worse the affect on the memory, but this is only an association at the moment. "
One might guess that people with a more rapid rate of cognitive decline are more susceptible to infections or injury, but we found no evidence to suggest that people with more severedementia (痴呆) were more likely to have infections or injuries.
"If further work proves that TNF is causing more brain inflammation it may be possible to use drugs that block TNF to help dementia sufferers. "
Professor Holmes said although common illnesses like colds and slight wounds could also set up an inflammatory response in the body, the data from his study did not support the idea that even these could cause memory loss.
Which statement is right about the study

A:In the study, all the subjects developed SIEs. B:In the study, only the subjects who had more than one SIE suffered the cognitive decline. C:In the study, all the subjects had a high level of TNF. D:In the study, those who had no SIE suffered less cognitive decline than those who ha

Among all the malignancies, lung cancer is the biggest killer: more than 100,000 Americans a year die of the disease. Giving up smoking is one of obvious way to reduce the risk, but another answer may lie in the kitchen. According to a new report, even heavy smokers may be protected from developing lung cancer by a simple dietary measure: a daily portion of carrots, spinach or any other vegetable or fruit containing a form of vitamin A called carotene.
The finding, published in the British medical journal The Lancet, is part of a long-range investigation of diet and disease. Since 1957 a team of American researchers has monitored the dietary habits and medical histories of 2,000 middle-aged men employed by the Western Electric Co. in Chicago. Led by Dr. Richard Shelelle of Chicago’s Rush-Presbyterian, St. Luke’s Medical Center, the researchers recently began to sort out the links between the subjects’ dietary patterns and cancer. Other studies of animals and humans have suggested that vitamin A offers some protection against lung cancer. The correlation seemed logical, since vitamin A is essential for the growth of the epithelial (上皮的) tissue that lines the airways of the lungs.
Vegetables: But the earlier research did not distinguish between two different forms of the vitamin. "Preformed" vitamin A, known as retinol, is found mainly in liver and dairy products like milk, cheese, butter and eggs. But vitamin A is also made in the body from carotene, which is abundant in a variety of vegetables and fruits, including carrots, spinach, squash, tomatoes, sweet potatoes and apples.
In the Western Electric study, Shekelle and his colleagues found little correlation between the incidence of lung cancer and the consumption of foods containing preformed vitamin A, but when they examined the data on carotene intake, they discovered a significant relationship. Among the 488 men who had the lowest level of carotene consumption, there were. fourteen cases of lung cancer; in a group of the same size that ate the most carotene, only two cases developed. The apparent protective effect of carotene held up even for longtime smokers but to a lesser degree.
Further studies will be necessary before the link between lung cancer and carotene can be firmly established. In the meantime, researchers warn against taking large numbers of vitamin A pills, because the tablets contain a form of the chemical that can be extremely toxic in high doses. Instead, they advise a well-balance diet that includes foods rich in carotene. For a smoker, a half-cup of carrots every day might possibly make the difference between life and death.
Among the groups studied, who had the most cases of lung cancer

A:Those with the lowest level of carotene intake. B:Those with the highest level o carotene intake. C:Those who ate only foods containing carotene. D:Those with the lowest intake of carrots.

Euthanasia: a Heatedly Debated Topic "We mustn’’t delay any longer...?swallowing(吞咽) is difficult...and breathing, that’’s also difficult. Those muscles are weakening too...we mustn’’t delay any longer." These were the words of Dutchman(荷兰人) Cees van wendel de Joode asking his doctor to help him die. Affected with a serious disease, van Vendel was no longer able to speak clearly and he knew there was no hope of recovery and that his condition was rapidly deteriorating. Van Venders last three months of life before being given a final, lethal injection by his doctor were filmed and first shown on television last year in the Netherlands. The programme has since been bought by 20 countries and each time it is shown, it starts a nationwide debate on the subject. The Netherlands is the only country in Europe which permits euthanasia (安乐死) , although it is not technically legal there. However, doctors who carry out euthanasia under strict guidelines introduced by the Dutch Parliament(议会) two years ago are usually not prosecuted. The guidelines demand that the patient is experiencing extreme suffering, that there is no chance of a cure, and that the patient has made repeated requests for euthanasia. In addition to this, a second doctor must confirm(证实) that these criteria have been met and the death must be reported to the police department. Should doctors be allowed to take the live of others? Dr. Wilfred Van Oijen, Cees van Vendel’’s doctor, explains how he looks at the question: "Well, it’’s not as if I in planning to murder a crowd of people with a machine gun. In that case, killing is the worst thing I can imagine. But that’’s entirely different from my work as a doctor. I care for people and I try to ensure that they don’t suffer too much. That’’s very different thing. " Many people, though, are totally against the practice of euthanasia. Dr. Andrew Ferguson, Chairman of the organization Healthcare opposed to Euthanasia, says that "in the vast majority of euthanasia cases , what the patient is actually asking for is something else. They may want a health professional to open up communication for them with their loved ones or family—there’’s nearly always another question behind the question." Britain also has a strong tradition of hospices—special hospitals which care only for the dying and their special needs. Cicely Saunders, President of the National Hospice Council and a founder member of the hospice movement, argues that euthanasia doesn’’t take into account that there are ways of caring for the dying. She is also concerned that allowing euthanasia would undermine the need for care and consideration of a wide range of people; "It’’s very easy in society now for the elderly, the disabled (伤残的) and the dependent to feel that they are burdens, and therefore that they ought to opt(脱离) out. I think that anything that legally allows the shortening of life does make those people more vulnerable (脆弱的)." Many find this prohibition of an individual’’s right to the paternalistic (家长式的). Although they agree that life is important and should be respected, they feel that the quality of life should not be ignored. Dr. Van Oijen believes that people have the fundamental right to choose for themselves if they want to die: "What those people who oppose euthanasia are telling me is that dying people haven’t the right. And that when people are very ill, we are all afraid of their death. But there are situations where death is a friend. And in those cases, why not?" But "why not?" is a question which might cause strong emotion. The film showing Cees Van Vendel’’s death was both moving and sensitive. His doctor was clearly a family friend; his wife had only her husband’’s interests at heart. Some, however, would argue that it would be dangerous to use this particular example to support the case for euthanasia. Not all patients would receive such a high level of individual care and attention. When the author says "But why not? is a question might cause strong emotion," (the last para. )he may mean______.

A:Cees Van Vendel was a man with much emotion B:Cees Van Vendel’s doctor and wife were both sensitive C:many people oppose the standpoints of those who support the practice of euthanasia strongly D:only those who are full of emotion can say such words.

Euthanasia: a Heatedly Debated Topic "We mustn’’t delay any longer...?swallowing(吞咽) is difficult...and breathing, that’’s also difficult. Those muscles are weakening too...we mustn’’t delay any longer." These were the words of Dutchman(荷兰人) Cees van wendel de Joode asking his doctor to help him die. Affected with a serious disease, van Vendel was no longer able to speak clearly and he knew there was no hope of recovery and that his condition was rapidly deteriorating. Van Venders last three months of life before being given a final, lethal injection by his doctor were filmed and first shown on television last year in the Netherlands. The programme has since been bought by 20 countries and each time it is shown, it starts a nationwide debate on the subject. The Netherlands is the only country in Europe which permits euthanasia (安乐死) , although it is not technically legal there. However, doctors who carry out euthanasia under strict guidelines introduced by the Dutch Parliament(议会) two years ago are usually not prosecuted. The guidelines demand that the patient is experiencing extreme suffering, that there is no chance of a cure, and that the patient has made repeated requests for euthanasia. In addition to this, a second doctor must confirm(证实) that these criteria have been met and the death must be reported to the police department. Should doctors be allowed to take the live of others? Dr. Wilfred Van Oijen, Cees van Vendel’’s doctor, explains how he looks at the question: "Well, it’’s not as if I in planning to murder a crowd of people with a machine gun. In that case, killing is the worst thing I can imagine. But that’’s entirely different from my work as a doctor. I care for people and I try to ensure that they don’t suffer too much. That’’s very different thing. " Many people, though, are totally against the practice of euthanasia. Dr. Andrew Ferguson, Chairman of the organization Healthcare opposed to Euthanasia, says that "in the vast majority of euthanasia cases , what the patient is actually asking for is something else. They may want a health professional to open up communication for them with their loved ones or family—there’’s nearly always another question behind the question." Britain also has a strong tradition of hospices—special hospitals which care only for the dying and their special needs. Cicely Saunders, President of the National Hospice Council and a founder member of the hospice movement, argues that euthanasia doesn’’t take into account that there are ways of caring for the dying. She is also concerned that allowing euthanasia would undermine the need for care and consideration of a wide range of people; "It’’s very easy in society now for the elderly, the disabled (伤残的) and the dependent to feel that they are burdens, and therefore that they ought to opt(脱离) out. I think that anything that legally allows the shortening of life does make those people more vulnerable (脆弱的)." Many find this prohibition of an individual’’s right to the paternalistic (家长式的). Although they agree that life is important and should be respected, they feel that the quality of life should not be ignored. Dr. Van Oijen believes that people have the fundamental right to choose for themselves if they want to die: "What those people who oppose euthanasia are telling me is that dying people haven’t the right. And that when people are very ill, we are all afraid of their death. But there are situations where death is a friend. And in those cases, why not?" But "why not?" is a question which might cause strong emotion. The film showing Cees Van Vendel’’s death was both moving and sensitive. His doctor was clearly a family friend; his wife had only her husband’’s interests at heart. Some, however, would argue that it would be dangerous to use this particular example to support the case for euthanasia. Not all patients would receive such a high level of individual care and attention. When the author says "But why not? is a question might cause strong emotion," (the last para. )he may mean______.

A:Cees Van Vendel was a man with much emotion B:Cees Van Vendel’s doctor and wife were both sensitive C:many people oppose the standpoints of those who support the practice of euthanasia strongly D:only those who are full of emotion can say such words.