As many people hit middle age,they often start to notice that their memory and mental clarity are not what they used to be.We suddenly can’t remember___1___we put the keys just a moment ago,or an old acquaintance’s name,or the name of an old band we used to love.As the brain___2___,we refer to these occurrences as“senior moments.”___3___seemingly innocent,this loss of mental focus can potentially have a（n）___4___impact on our professional,social,and personal___5___.Neuroscientists,experts who study the nervous system,are increasingly showing that there’s actually a lot that can be done.It___6___out that the brain needs exercise in much the same way our muscles do,and the right mental___7___can significantly improve our basic cognitive___8___.Thinking is essentially a___9___of making connections in the brain.To a certain extent,our ability to___10___in making the connections that drive intelligence is inherited.___11___,because these connections are made through effort and practice,scientists believe that intelligence can expand and fluctuate___12___mental effort.Now,a new Web-based company has taken it a step___13___and developed the first“brain training program”designed to actually help people improve and regain their mental___14___.The Web-based program___15___you to systematically improve your memory and attention skills.The program keeps___16___of your progress and provides detailed feedback___17___your performance and improvement.Most importantly,it___18___modifies and enhances the games you play to___19___on the strengths you are developing—much like a（n）___20___exercise routine requires you to increase resistance and vary your muscle use.（1）选？A.whereB.whenC.thatD.why
As many people hit middle age,they often start to notice that their memory and mental clarity are not what they used to be.We suddenly can’t remember___1___we put the keys just a moment ago,or an old acquaintance’s name,or the name of an old band we used to love.As the brain___2___,we refer to these occurrences as“senior moments.”___3___seemingly innocent,this loss of mental focus can potentially have a（n）___4___impact on our professional,social,and personal___5___.Neuroscientists,experts who study the nervous system,are increasingly showing that there’s actually a lot that can be done.It___6___out that the brain needs exercise in much the same way our muscles do,and the right mental___7___can significantly improve our basic cognitive___8___.Thinking is essentially a___9___of making connections in the brain.To a certain extent,our ability to___10___in making the connections that drive intelligence is inherited.___11___,because these connections are made through effort and practice,scientists believe that intelligence can expand and fluctuate___12___mental effort.Now,a new Web-based company has taken it a step___13___and developed the first“brain training program”designed to actually help people improve and regain their mental___14___.The Web-based program___15___you to systematically improve your memory and attention skills.The program keeps___16___of your progress and provides detailed feedback___17___your performance and improvement.Most importantly,it___18___modifies and enhances the games you play to___19___on the strengths you are developing—much like a（n）___20___exercise routine requires you to increase resistance and vary your muscle use.（1）选？
A.where
B.when
C.that
D.why
B.when
C.that
D.why
参考解析
解析：动词搭配+从句辨析本句句义为“我们会突然想不起来放钥匙_____”。划线处及之后的“_____we put the key just a moment ago”作remember的宾语从句。根据put的用法“put something in some place”（把某物放在某处）可知，空格处缺少的是地点状语，在四个选项中只有where表示地点状语，因此正确答案是D。why和when分别引导原因状语从句和时间状语从句，可放到空格处，但是无法做put的地点状语，所以排除选项A和B。that放在动词remember之后引导宾语从句，此时的that没有任何实际意义可以省略，而且that并不能充当put的地点状语，所以排除选项C。
相关考题：
28． The number of listeners is becoming larger because__________．A． the radio is easy to carryB． the radio is good for blind people and many old peopleC． the radio can be used at any timeD．A，B and C
What is known about the influenza virus?A. It was first found in a group of very old birds.B. All the different strains can be found in wild birds.C. It existed over 100 million years ago.D. It can survive in many different places.
What can we learn about old women in terms of fashion？A.They are often ignored by fashion designers .B. They are now more easily influenced by stars .C. They are regarded as pioneers in the latest fashion .D. They are more interested in clothes because of their old age .
We can infer from the passage that in England （ ）A． many plays are not for young peopleB． many young people don’t like theatreC． people know little about the planD． children used to receive good arts education
The term “multitasking” originally referred to a computer’s ability to carry out several tasks at one time. For many people, multitasking has become a way of life and even a key to success. In fact, some excellent mental aerobic exercises (大脑训练) involve engaging the brain in two or more challenging activities at a time. Although checking e-mail while talking on a phone and reading the newspaper may be second nature for some people, many times multitasking can make us less productive, rather than more. And studies show that too much multitasking can lead to increased stress, anxiety and memory loss.In order to multitask, the brain uses an area known as the prefrontal cortex (前额叶脑皮层). Brian scans of volunteers performing multiple tasks together show that as they shift from task to task, this front part of the brain actually takes a moment of rest between tasks. You may have experienced a prefrontal cortex “moment of rest” yourself if you’ve ever dialed (拨电话) a phone number and suddenly forgotten who you dialed when the line is answered. What probably occurred is that between the dialing and the answering, your mind shifted to anther thought or task, and then took that “moment” to come back. Research has also shown that for many volunteers, job efficiency (效率) declines while multitasking, as compared to when they perform. only one task at a time.Multitasking is easiest when at least one of the tasks is habitual, or requires little thought. Most people don’t find it difficult to eat and read the newspaper at the same time. However, when two or more attention-requiring tasks are attempted at one time, people sometimes make mistakes.We often don’t remember things as well when we’re trying to manage several details at the same time. Without mental focus, we may not pay enough attention to new information coming in, so it never makes it into our memory stores. That is one of the main reasons we forget people’s names---even sometimes right after they have introduced themselves. Multitasking can also affect our relationships. If someone checks their e-mail while on the phone with a friend, they may come off as absent-minded or disinterested. It can also cause that person to miss or overlook key information being passed on to them.49. Why are some mental aerobic exercises designed to engage people in multitasking?A. To make them more productive.B. To reduce their stress and anxiety.C. To develop their communication skills.D. To help them perform. daily tasks more easily.
共用题干第一篇Prolonging human life has increased the size of the human population.Many people alive today would have died of childhood diseases if they had been born 100 years ago.Because more people live longer,there are more people around at any given time.In fact,it is a decrease in death rates, not an increase in birth rates,that has led to the population explosion.Prolonging human life has also increased the dependency load.In all societies,people who are disabled or too young or too old to work are dependent on the rest of society to provide for them.In hunting and gathering cultures,old people who could not keep up might be left behind to die.In times of famine,infants might be allowed to die because they could not survive if their parents starved,whereas if the parents survived they could have another child.In most contemporary societies,people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work;we also have rules which require people to retire at a certain age.Unless these people were able to save money for their retirement,somebody else must support them. In the United States many retired people live on social security checks which are so little that they must live in near poverty. Older people have more illness than young or middle-aged people;unless they have wealth or private or government insurance,they must often"go on welfare"if they have a serious illness.When older people become senile or too weak and ill to care for themselves,they create grave problems for their families.In the past and in some traditional cultures,they would be cared for at home until they died.Today,with most members of a household working or in school,there is often no one at home who can care for a sick or weak person.To meet this need,a great many nursing homes and convalescent hospitals have been built. These are often profit-making organizations, although some are sponsored by religious and other nonprofit groups.While a few of these institutions are good,most of them are simply "dumping grounds"for the dying in which" care" is given by poorly paid,overworked,and underskilled personnel.In Paragraph 3,the phrase "this need" refers to________.A:the need to prolong the lives of old peopleB:the need to enrich the life of the retired peopleC:the need to build profit-making nursing homesD:the need to take care of a sick and weak person
共用题干Prolonging Human LifeProlonging human life has increased the size of the human population.Many people alive to-day would have died of childhood diseases if they had been born 100 years ago.Because more people live longer,there are more people around at any given time.In fact,it is a decrease in death rates,not an increase in birthrates,that has led to the population explosion.Prolonging human life has also increased the dependency load.In all societies,people who are disabled or too young or too old to work are dependent on the rest of society to provide for them.In hunting and gathering cultures,old people who could not keep up might be left behind to die .In times of famine,infants might be allowed to die because they could not survive if their parents starved,whereas if the parents survived they could have another child.In most contempo- rary societies,people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work;we also have rules which require people to retire at a certain age.Unless these people were able to save money for their retirement,somebody else must support them .In the United States many retired people live on social security checks which are so little that they must live in nearpoverty .Older people have more illness than young or middle-aged people;unless they have wealth or private or government insurance,they must often"go on welfare"if they have a serious illness.When older people become senile or too weak and ill to care for themselves,they create grave problems for their families.In the past and in some traditional cultures,they would be cared for at home until they died.Today,with most members of a household working or in school,there is often no one at home who can care for a sick or weak person.To meet this need, a great many nursing homes and convalescent hospitals have been built.These are often profit-making organizations,although some are sponsored by religious and other nonprofit groups.While a few of these institutions are good,most of them are simply"dumping grounds"for the dying in which"care"is given by poorly paid,overworked,and under-skilled personnel. It can be inferred from the passage that in hunting and gathering cultures______.A: it was a moral responsibility to keep old-aged people aliveB: infants could be left dead in times of starvationC: parents had to impart the cultural wisdom of the tribe to their childrenD: death was considered to be freedom from hardships
共用题干Step Back in Time Do you know that we live a lot longer now than the people who were born before us?One hundred years ago the average woman lived to be 45 .But now,she can live until at least 80. One of the main reasons for people living longer is that we know how to look after ourselves better. We know which foods are good for US and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better a-gain .And we know how important it is to do lots of exercise to keep our hearts beating healthily. But in order that we don't slip back into bad habits,let's have a look at what life was like 100 years ago. Families had between 15 and 20 children,although many babies didn't live long. Children suffered from lots of diseases, especially rickets (佝偻病）and scurvy（坏血病）,which are both caused by bad diets.This is because many families were very poor and not able to feed their chil-dren well. Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string,because there was no room for them to lie down. People didn't have fridges until the 1920s.They kept fresh food cold by storing it on window-sills（窗台板）,blocks of ice , or even burying it in the garden. Some children had to start work at the age of seven or eight to earn money for their parents. If you had lived 100 years ago, you might well be selling matchsticks（火柴杆）(a job done by many children) or working with your dad by now. A hundred years ago many kids died at an early age.A: RightB:WrongC:Not mentioned
共用题干Prolonging Human LifeProlonging human life has increased the size of the human population. Many people alivetoday would have died of childhood diseases if they had been born 100 years ago.Becausemore people live longer,there are more people around at any given time. In fact,it is a decrease in death rates,not an increase in birthrates,that has led to the population explosion.Prolonging human life has also increased the dependency load. In all societies,people who are disabled or too young or too old to work are dependent on the rest of society to provide for them. In hunting and gathering cultures,old people who could not keep up might be left behind to die. In times of famine,infants might be allowed to die because they could not survive if their parents starved,whereas if the parents survived they could have another child. In most contemporary societies,people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work;we also have rules which require people to retire at a certain age. Unless these people were able to save money for their retirement,some-body else must support them. In the United States many retired people live on social security checks which are so little that they must live in near poverty. Older people have more illness than young or middle-aged people;unless they have wealth or private or government insur-ance,they must often“go on welfare” if they have a serious illness.When older people become senile or too weak and ill to care for themselves,they create grave problems for their families. In the past and in some traditional cultures,they would be cared for at home until they died. Today,with most members of a household working or in school,there is often no one at home who can care for a sick or weak person. To meet this need,a great many nursing homes and convalescent hospitals have been built.These are of-ten profit-making organizations,although some are sponsored by religious and other nonprofit groups.While a few of these institutions are good,most of them are simply“dumping grounds”for the dying in which“care”is given by poorly paid,overworked,and under-skilled personnel.It can be inferred from the passage that in hunting and gathering cultures______.A: it was a moral responsibility to keep old-aged people aliveB: infants could be left dead in times of starvationC: parents had to impart the cultural wisdom of the tribe to their childrenD: death was considered to be freedom from hardships
共用题干Prolonging Human LifeProlonging human life has increased the size of the human population.Many people alive to-day would have died of childhood diseases if they had been born 100 years ago.Because more people live longer,there are more people around at any given time.In fact,it is a decrease in death rates,not an increase in birthrates,that has led to the population explosion.Prolonging human life has also increased the dependency load.In all societies,people who are disabled or too young or too old to work are dependent on the rest of society to provide for them.In hunting and gathering cultures,old people who could not keep up might be left behind to die .In times of famine,infants might be allowed to die because they could not survive if their parents starved,whereas if the parents survived they could have another child.In most contempo- rary societies,people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work;we also have rules which require people to retire at a certain age.Unless these people were able to save money for their retirement,somebody else must support them .In the United States many retired people live on social security checks which are so little that they must live in nearpoverty .Older people have more illness than young or middle-aged people;unless they have wealth or private or government insurance,they must often"go on welfare"if they have a serious illness.When older people become senile or too weak and ill to care for themselves,they create grave problems for their families.In the past and in some traditional cultures,they would be cared for at home until they died.Today,with most members of a household working or in school,there is often no one at home who can care for a sick or weak person.To meet this need, a great many nursing homes and convalescent hospitals have been built.These are often profit-making organizations,although some are sponsored by religious and other nonprofit groups.While a few of these institutions are good,most of them are simply"dumping grounds"for the dying in which"care"is given by poorly paid,overworked,and under-skilled personnel. The writer believes that the population explosion results from______.A: an increase in birthratesB: the industrial developmentC: a decrease in death ratesD: cultural advances
共用题干Step Back in TimeDo you know that we live a lot longer now than the people who were born before us?One hundred years ago the average woman lived to be 45.But now,she can live until at least 80.One of the main reasons for people living longer is that we know how to look after ourselves better.We know which foods are good for us and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better again.And we know how important it is to do lots of exercise to keep our hearts beating healthily.But in order that we don't slip back into bad habits,let's have a look at what life was 100 years agoFamilies had between 15 and 20 children,although many babies didn't live long.from lots of diseases , especially rickets (佝偻病）and scurvy（坏血病）,which are bot diets.This is because many families were very poor and not able to feed their children well.Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string,because there was no room for them to lie down.People didn't have fridges until the 1920s.They kept fresh food cold by storing it on windowsills（窗台板）,blocks of ice,or even burying it in the garden.Some children had to start work at the age of seven or eight to earn money for their pai lived 100 years ago,you might well be selling matchsticks（火柴杆）(a job done by many children）or working with your dad by now.A hundred years ago many kids died at an early age.A:Right B:Wrong C:Not mentioned
Americans of a"certain age"abound at the upper levels of American governance.President Trump is the most obvious example.Just over half of US senators wrll be 65 0r older by the end of this year.On the Supreme Court,five of rtine justices are over 65.These"senior citizens"make crucial decisions for the majority of Americans younger than them.Just eight decades ago,when the Social Security system began,65 was codified as the start of"old age".Now many people of that age may feel in the prime of life.Measured by years alone,Americans are on average getting older.A popular notion is that a war is brewing between generations-young working Americans resenting that they must pay more into SociaJ Security and Medicare to support an expanding group of older Americans.There's truth in that sentiment.I,ast year,there were 25 people over 65 for every 100 people between 18 and 64.And the worker-to-retiree ratio is projected to be even worse by 2030.But that idea is being challenged.To begin with,programs like Social Security and Medicare can be adjusted,as ihey have in the past.while certain trends,such as Americans delaying full retirement,could alter the projections.A pair of new government reports show that funding for Medicare will run out in 2026.The Social Security trust fund will dry up by 2034.Despite these warnings,modest fixes are available,including making small changes in the age of eligibility that recognize lengthening life spans.Even that step may not be needed.By one estimate,increasing the Social Security payroll tax by 2.88 percentage points could eliminate the expected revenue shortfall for another three-quarters of a century.But actuarial tables,however useful for government planning,shouldn't impose artificial limits on what older Americans do.Aging isn't what it used to be.Today,75-year-olds on average will live just as many additional years as the average 65-year-old did in 1952.Categorizing by age can be just as harmful as by gender or race.Labeling people by an age category is a receiit phenomenon.The idea of being"middle aged"wasn't popularized until after World War I.Marketing continues to classify Americans by calendar years,walling off the beneficial effects of older and younger people rubbing shoulders.Companies are beginning to consider age diversity to be as important as racial and gender diversity.Some observers suggest businesses try the"shoe test":Look under desks.If everyone's wearing the same kind of shoes-whether wingtips or slipper-the business would benefit from more diversity.Today,suggests one expert,Americans have an opportunity to make a"fresh map of life itself",throwing off outworn ideas about aging.Policies that encourage older Americans to expand the possibilities of their"senior years"will help change limited perceptions and benefit all of society."That sentiment"（Line 4,Para.2）refers to the concern thatA.young working Americans will hinder social security reform.B.the young and the old will have conflicting notions about life.C.older Americans will be a huge financial burden for the young.D.the old will compete with the young for working opportunities.
Americans of a"certain age"abound at the upper levels of American governance.President Trump is the most obvious example.Just over half of US senators wrll be 65 0r older by the end of this year.On the Supreme Court,five of rtine justices are over 65.These"senior citizens"make crucial decisions for the majority of Americans younger than them.Just eight decades ago,when the Social Security system began,65 was codified as the start of"old age".Now many people of that age may feel in the prime of life.Measured by years alone,Americans are on average getting older.A popular notion is that a war is brewing between generations-young working Americans resenting that they must pay more into SociaJ Security and Medicare to support an expanding group of older Americans.There's truth in that sentiment.I,ast year,there were 25 people over 65 for every 100 people between 18 and 64.And the worker-to-retiree ratio is projected to be even worse by 2030.But that idea is being challenged.To begin with,programs like Social Security and Medicare can be adjusted,as ihey have in the past.while certain trends,such as Americans delaying full retirement,could alter the projections.A pair of new government reports show that funding for Medicare will run out in 2026.The Social Security trust fund will dry up by 2034.Despite these warnings,modest fixes are available,including making small changes in the age of eligibility that recognize lengthening life spans.Even that step may not be needed.By one estimate,increasing the Social Security payroll tax by 2.88 percentage points could eliminate the expected revenue shortfall for another three-quarters of a century.But actuarial tables,however useful for government planning,shouldn't impose artificial limits on what older Americans do.Aging isn't what it used to be.Today,75-year-olds on average will live just as many additional years as the average 65-year-old did in 1952.Categorizing by age can be just as harmful as by gender or race.Labeling people by an age category is a receiit phenomenon.The idea of being"middle aged"wasn't popularized until after World War I.Marketing continues to classify Americans by calendar years,walling off the beneficial effects of older and younger people rubbing shoulders.Companies are beginning to consider age diversity to be as important as racial and gender diversity.Some observers suggest businesses try the"shoe test":Look under desks.If everyone's wearing the same kind of shoes-whether wingtips or slipper-the business would benefit from more diversity.Today,suggests one expert,Americans have an opportunity to make a"fresh map of life itself",throwing off outworn ideas about aging.Policies that encourage older Americans to expand the possibilities of their"senior years"will help change limited perceptions and benefit all of society.Which of the following would be the best title for the text?A.Shock of gray:how we can fill the pension gap.B.Shifting views of seniors:less burden,more asset.C.An aging society:challenges,as well as opportunities.D.Young Americans:how to make a fresh map of life?
Americans of a"certain age"abound at the upper levels of American governance.President Trump is the most obvious example.Just over half of US senators wrll be 65 0r older by the end of this year.On the Supreme Court,five of rtine justices are over 65.These"senior citizens"make crucial decisions for the majority of Americans younger than them.Just eight decades ago,when the Social Security system began,65 was codified as the start of"old age".Now many people of that age may feel in the prime of life.Measured by years alone,Americans are on average getting older.A popular notion is that a war is brewing between generations-young working Americans resenting that they must pay more into SociaJ Security and Medicare to support an expanding group of older Americans.There's truth in that sentiment.I,ast year,there were 25 people over 65 for every 100 people between 18 and 64.And the worker-to-retiree ratio is projected to be even worse by 2030.But that idea is being challenged.To begin with,programs like Social Security and Medicare can be adjusted,as ihey have in the past.while certain trends,such as Americans delaying full retirement,could alter the projections.A pair of new government reports show that funding for Medicare will run out in 2026.The Social Security trust fund will dry up by 2034.Despite these warnings,modest fixes are available,including making small changes in the age of eligibility that recognize lengthening life spans.Even that step may not be needed.By one estimate,increasing the Social Security payroll tax by 2.88 percentage points could eliminate the expected revenue shortfall for another three-quarters of a century.But actuarial tables,however useful for government planning,shouldn't impose artificial limits on what older Americans do.Aging isn't what it used to be.Today,75-year-olds on average will live just as many additional years as the average 65-year-old did in 1952.Categorizing by age can be just as harmful as by gender or race.Labeling people by an age category is a receiit phenomenon.The idea of being"middle aged"wasn't popularized until after World War I.Marketing continues to classify Americans by calendar years,walling off the beneficial effects of older and younger people rubbing shoulders.Companies are beginning to consider age diversity to be as important as racial and gender diversity.Some observers suggest businesses try the"shoe test":Look under desks.If everyone's wearing the same kind of shoes-whether wingtips or slipper-the business would benefit from more diversity.Today,suggests one expert,Americans have an opportunity to make a"fresh map of life itself",throwing off outworn ideas about aging.Policies that encourage older Americans to expand the possibilities of their"senior years"will help change limited perceptions and benefit all of society.By suggesting"shoe test",observers advise companies toA.allocate different tasks to people in different ages.B.create a pleasant working environment for the older.C.enhance cooperation among members.D.promote age diversity of employees.
共用题干Prolonging Human Life1.Prolonging human life has increased the size of the human population.Many people alive today would have died of childhood diseases if they had been born 100 years ago.Because more people live longer,there are more people around at any given time.In fact,it is a decrease in death rates,not an increase in birthrates,that has led to the population explosion.2.Prolonging human life has also increased the dependency load.In all societies,people who are disabled or too young or too old to work are dependent on the rest of society to provide for them. In hunting and gathering cultures,old people who could not keep up might be left behind to die.In times of famine,infants might be allowed to die because they could not survive if their parents starved,whereas if the parents survived they could have another child.3.In most contemporary societies,people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work.We also have rules which require people to retire at a certain age.Unless these people were able to save money for their retirement,somebody else must support them.In the United States many retired people live on social security checks which are so little that they must live in near poverty. Older people have more illness than young or middle-aged people.Unless they have wealth or private or government insurance,they must often"go on welfare"if they have a serious illness.4.When older people become senile or too weak and ill to care for themselves,they create grave problems for their families.In the past and in some traditional cultures,they would be cared for at home until they died.Today,with most members of a household working or in school,there is often no one at home who can care for a sick or weak person.To meet this need,a great many nursing homes and convalescent hospitals have been built. These are often profit-making organizations, although some are sponsored by religious and other nonprofit groups.While a few of these institutions are good,most of them are simply"dumping grounds"for the dying in which"care"is given by poorly paid,overworked,and under-skilled personnel.In________,old people who could not keep up might be abandoned to die.A:too weak and illB:hunting and gathering culturesC:childhood diseasesD:no one at homeE:epidemic diseases F: traditional cultures
共用题干Prolonging Human Life1.Prolonging human life has increased the size of the human population.Many people alive today would have died of childhood diseases if they had been born 100 years ago.Because more people live longer,there are more people around at any given time.In fact,it is a decrease in death rates,not an increase in birthrates,that has led to the population explosion.2.Prolonging human life has also increased the dependency load.In all societies,people who are disabled or too young or too old to work are dependent on the rest of society to provide for them. In hunting and gathering cultures,old people who could not keep up might be left behind to die.In times of famine,infants might be allowed to die because they could not survive if their parents starved,whereas if the parents survived they could have another child.3.In most contemporary societies,people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work.We also have rules which require people to retire at a certain age.Unless these people were able to save money for their retirement,somebody else must support them.In the United States many retired people live on social security checks which are so little that they must live in near poverty. Older people have more illness than young or middle-aged people.Unless they have wealth or private or government insurance,they must often"go on welfare"if they have a serious illness.4.When older people become senile or too weak and ill to care for themselves,they create grave problems for their families.In the past and in some traditional cultures,they would be cared for at home until they died.Today,with most members of a household working or in school,there is often no one at home who can care for a sick or weak person.To meet this need,a great many nursing homes and convalescent hospitals have been built. These are often profit-making organizations, although some are sponsored by religious and other nonprofit groups.While a few of these institutions are good,most of them are simply"dumping grounds"for the dying in which"care"is given by poorly paid,overworked,and under-skilled personnel.Many people would have died of_______if they had been born 100 years ago.A:too weak and illB:hunting and gathering culturesC:childhood diseasesD:no one at homeE:epidemic diseases F: traditional cultures
共用题干Prolonging Human Life1. Prolonging human life has increased the size of the human population.Many people alive to-day would have died of childhood diseases if they had been born 100 years ago.Because more people live longer,there are more people around at any given time .In fact,it is a decrease in death rates,not an increase in birthrates,that has led to the population explosion.2. Prolonging human life has also increased the dependency load.In all societies,people who are disabled or too young or too old to work are dependent on the rest of society to provide for them. In hunting and gathering cultures,old people who could not keep up might be left behind to die.In times of famine,infants might be allowed to die because they could not survive if their parents starved,whereas if the parents survived they could have another child.3. In most contemporary societies,people feel a moral obligation to keep people alive whether they can work or not.We have a great many people today who live past the age at which they want to work or are able to work;we also have rules which require people to retire at a certain age.Unless these people were able to save money for their retirement,somebody else must support them.In the United States many retired people live on social security checks which are so little that they must live in near poverty.Older people have more illness than young or middle-aged people;unless they have wealth or private or government insurance,they must often"go on welfare"if they have a serious illness.4. When older people become senile or too weak and ill to care for themselves,they create grave problems for their families.In the past and in some traditional cultures,they would be cared for at home until they died.Today,with most members of a household working or in school,there is often no one at home who can care for a sick or weak person.To meet this need,a great many nursing homes and convalescent hospitals have been built.These are often profit-making organizations,although some are sponsored by religious and other nonprofit groups.While a few of these institutions arc good,most of them are simply"dumping grounds"for the dying in which"care" is given by poorly paid,overworked,and under-skilled personnel. Today,with most members of a household working or in school,there is______often who can care for a sick or weak person.A: too weak and illB: hunting and gathering culturesC: childhood diseasesD: no one at homeE: epidemic diseasesF: traditional cultures
共用题干Improve Your MemoryTo many people advancing age means losing your hair,your waistline and your memory.But is it an inescapable fact that the older you get,the less you remember? Well,as time goes by,we tend to blame age for problems that are not necessarily age-related.When a teenager can't find her keys,she thinks it's because she's distracted or disorganized, but a 70-year-old blames her memory. In fact,the 70-year-old may have been misplacing things for decades一like we all do from time to time.In healthy people,memory doesn't deteriorate as quickly as many of us think. According to psychologists,as we age,our memory mechanism isn't broken,it's just different.The brain's processing time slows down over the years,though no one knows exactly why.Recent research suggests that nerve cells lose efficiency and that there's less activity in the part of the brain that decides whether to store information or not.But it's not clear that less activity is worse.A beginning athlete is winded. more easily than a trained athlete.In the same way,as the brain gets more skilled at a task,it spends less energy on it.There are steps you can take to improve your memory,though you have to work to keep your brain in shape.It's like having a good body. You can't go to the gym once a year and expect to stay in top form.Some memory enhancement experts suggest using the AM principle.Pay attention to what you want to remember. Then give some meaning to it. We remember things when we focus on them, whether we intend to or not. That helps explain why jingles stick in our minds.They are played on loud,flashy TV commercials.They also use rhyme and music to help us remember better.Basic organization helps us remember the boring stuff. For example,rather than trying to recall a random list of groceries,we can divide them into categories,such as dairy,meat and produce. For important things like keys and money,we can set up a"forget-me-not"spot where we always keep them.We can also eat to aid our memory power. Whole grains,fruits and vegetables are excellent sources of glucose,the brain's preferred fuel. Another low-tech way to improve memory is to get adequate rest. Sleep may allow our brain time to encode memories.Interest in friends,family and hobbies does wonders for our memory.A sense of passion or purpose helps us remember. Memory requires us to pay attention to our lives,allowing us to discover in them everything worth remembering.As we get older, our memory mechanism is broken,and so cannot be the same as it was before.A:Right B:Wrong C:Not mentioned
共用题干Improve Your MemoryTo many people advancing age means losing your hair,your waistline and your memory.But is it an inescapable fact that the older you get,the less you remember? Well,as time goes by,we tend to blame age for problems that are not necessarily age-related.When a teenager can't find her keys,she thinks it's because she's distracted or disorganized, but a 70-year-old blames her memory. In fact,the 70-year-old may have been misplacing things for decades一like we all do from time to time.In healthy people,memory doesn't deteriorate as quickly as many of us think. According to psychologists,as we age,our memory mechanism isn't broken,it's just different.The brain's processing time slows down over the years,though no one knows exactly why.Recent research suggests that nerve cells lose efficiency and that there's less activity in the part of the brain that decides whether to store information or not.But it's not clear that less activity is worse.A beginning athlete is winded. more easily than a trained athlete.In the same way,as the brain gets more skilled at a task,it spends less energy on it.There are steps you can take to improve your memory,though you have to work to keep your brain in shape.It's like having a good body. You can't go to the gym once a year and expect to stay in top form.Some memory enhancement experts suggest using the AM principle.Pay attention to what you want to remember. Then give some meaning to it. We remember things when we focus on them, whether we intend to or not. That helps explain why jingles stick in our minds.They are played on loud,flashy TV commercials.They also use rhyme and music to help us remember better.Basic organization helps us remember the boring stuff. For example,rather than trying to recall a random list of groceries,we can divide them into categories,such as dairy,meat and produce. For important things like keys and money,we can set up a"forget-me-not"spot where we always keep them.We can also eat to aid our memory power. Whole grains,fruits and vegetables are excellent sources of glucose,the brain's preferred fuel. Another low-tech way to improve memory is to get adequate rest. Sleep may allow our brain time to encode memories.Interest in friends,family and hobbies does wonders for our memory.A sense of passion or purpose helps us remember. Memory requires us to pay attention to our lives,allowing us to discover in them everything worth remembering.You must work hard to keep your brain active,just as you work hard to keep yourself in shape.A:Right B:Wrong C:Not mentioned
共用题干Improve Your MemoryTo many people advancing age means losing your hair,your waistline and your memory.But is it an inescapable fact that the older you get,the less you remember? Well,as time goes by,we tend to blame age for problems that are not necessarily age-related.When a teenager can't find her keys,she thinks it's because she's distracted or disorganized, but a 70-year-old blames her memory. In fact,the 70-year-old may have been misplacing things for decades一like we all do from time to time.In healthy people,memory doesn't deteriorate as quickly as many of us think. According to psychologists,as we age,our memory mechanism isn't broken,it's just different.The brain's processing time slows down over the years,though no one knows exactly why.Recent research suggests that nerve cells lose efficiency and that there's less activity in the part of the brain that decides whether to store information or not.But it's not clear that less activity is worse.A beginning athlete is winded. more easily than a trained athlete.In the same way,as the brain gets more skilled at a task,it spends less energy on it.There are steps you can take to improve your memory,though you have to work to keep your brain in shape.It's like having a good body. You can't go to the gym once a year and expect to stay in top form.Some memory enhancement experts suggest using the AM principle.Pay attention to what you want to remember. Then give some meaning to it. We remember things when we focus on them, whether we intend to or not. That helps explain why jingles stick in our minds.They are played on loud,flashy TV commercials.They also use rhyme and music to help us remember better.Basic organization helps us remember the boring stuff. For example,rather than trying to recall a random list of groceries,we can divide them into categories,such as dairy,meat and produce. For important things like keys and money,we can set up a"forget-me-not"spot where we always keep them.We can also eat to aid our memory power. Whole grains,fruits and vegetables are excellent sources of glucose,the brain's preferred fuel. Another low-tech way to improve memory is to get adequate rest. Sleep may allow our brain time to encode memories.Interest in friends,family and hobbies does wonders for our memory.A sense of passion or purpose helps us remember. Memory requires us to pay attention to our lives,allowing us to discover in them everything worth remembering.It is not always true that the older you get,the less you remember.A:Right B:Wrong C:Not mentioned
共用题干Improve Your MemoryTo many people advancing age means losing your hair,your waistline and your memory.But is it an inescapable fact that the older you get,the less you remember? Well,as time goes by,we tend to blame age for problems that are not necessarily age-related.When a teenager can't find her keys,she thinks it's because she's distracted or disorganized, but a 70-year-old blames her memory. In fact,the 70-year-old may have been misplacing things for decades一like we all do from time to time.In healthy people,memory doesn't deteriorate as quickly as many of us think. According to psychologists,as we age,our memory mechanism isn't broken,it's just different.The brain's processing time slows down over the years,though no one knows exactly why.Recent research suggests that nerve cells lose efficiency and that there's less activity in the part of the brain that decides whether to store information or not.But it's not clear that less activity is worse.A beginning athlete is winded. more easily than a trained athlete.In the same way,as the brain gets more skilled at a task,it spends less energy on it.There are steps you can take to improve your memory,though you have to work to keep your brain in shape.It's like having a good body. You can't go to the gym once a year and expect to stay in top form.Some memory enhancement experts suggest using the AM principle.Pay attention to what you want to remember. Then give some meaning to it. We remember things when we focus on them, whether we intend to or not. That helps explain why jingles stick in our minds.They are played on loud,flashy TV commercials.They also use rhyme and music to help us remember better.Basic organization helps us remember the boring stuff. For example,rather than trying to recall a random list of groceries,we can divide them into categories,such as dairy,meat and produce. For important things like keys and money,we can set up a"forget-me-not"spot where we always keep them.We can also eat to aid our memory power. Whole grains,fruits and vegetables are excellent sources of glucose,the brain's preferred fuel. Another low-tech way to improve memory is to get adequate rest. Sleep may allow our brain time to encode memories.Interest in friends,family and hobbies does wonders for our memory.A sense of passion or purpose helps us remember. Memory requires us to pay attention to our lives,allowing us to discover in them everything worth remembering.It can be inferred from the passage that memory problems are not really age-related.A:Right B:Wrong C:Not mentioned
共用题干Improve Your MemoryTo many people advancing age means losing your hair,your waistline and your memory.But is it an inescapable fact that the older you get,the less you remember? Well,as time goes by,we tend to blame age for problems that are not necessarily age-related.When a teenager can't find her keys,she thinks it's because she's distracted or disorganized, but a 70-year-old blames her memory. In fact,the 70-year-old may have been misplacing things for decades一like we all do from time to time.In healthy people,memory doesn't deteriorate as quickly as many of us think. According to psychologists,as we age,our memory mechanism isn't broken,it's just different.The brain's processing time slows down over the years,though no one knows exactly why.Recent research suggests that nerve cells lose efficiency and that there's less activity in the part of the brain that decides whether to store information or not.But it's not clear that less activity is worse.A beginning athlete is winded. more easily than a trained athlete.In the same way,as the brain gets more skilled at a task,it spends less energy on it.There are steps you can take to improve your memory,though you have to work to keep your brain in shape.It's like having a good body. You can't go to the gym once a year and expect to stay in top form.Some memory enhancement experts suggest using the AM principle.Pay attention to what you want to remember. Then give some meaning to it. We remember things when we focus on them, whether we intend to or not. That helps explain why jingles stick in our minds.They are played on loud,flashy TV commercials.They also use rhyme and music to help us remember better.Basic organization helps us remember the boring stuff. For example,rather than trying to recall a random list of groceries,we can divide them into categories,such as dairy,meat and produce. For important things like keys and money,we can set up a"forget-me-not"spot where we always keep them.We can also eat to aid our memory power. Whole grains,fruits and vegetables are excellent sources of glucose,the brain's preferred fuel. Another low-tech way to improve memory is to get adequate rest. Sleep may allow our brain time to encode memories.Interest in friends,family and hobbies does wonders for our memory.A sense of passion or purpose helps us remember. Memory requires us to pay attention to our lives,allowing us to discover in them everything worth remembering.Some people tend to have better memories than the rest of us.A:Right B:Wrong C:Not mentioned
共用题干The Sandwich GenerationToday people often look forward to their middle age as a time when they will be able to take things easier. After their children are grown,they expect to enjoy the life they have worked hard to create .However,the reality is often very different. In middle age,many people discover that they have two ongoing responsibilities:one is to look after their aging parents,and the other is to help their young adult children deal with the pressures of life.Around the world,there are mil-lions of people who are“sandwiched”in between the older and the younger generations.Some-times there may be two or three generations living in the same household-a situation that is corn-mon in many Asian countries and in some parts of Europe .In other cases,a couple may be taking care of parents and children,but they do not live with them.There are two important reasons for the rise of the sandwich generation.First,people are liv-ing longer than they used to.In the early nineteenth century,the average life expectancy for adults in the United States,for example,was about 40,whereas today people live to an average age of 75 .Therefore,children are taking care of their parents over a longer period of time.The see-ond reason is that these days,young adults often live with their parents for a longer time than they did in the past. This is often for financial reasons.It's also more common for today's young adults to return home during or after college if they need financial or emotional support.Young adults feel sandwiched between their financial responsibilities and their desire to enjoy life .They may have to cover expenses that their parents cannot.They may have to manage their parents' financial and legal affairs.They may have to prepare for their parents' future needs,such as special medical care or a move to a nursing home. This can be a traumatic（长期困扰的）ex-perience for everyone.Caring for adult children presents challenges as well,and caregivers have to resolve important questions:How can financial responsibilities be shared among members of the household?How can household chores be shared?What is the best way to ensure everyone's privacy?Successfully cop-ing with these issues can avoid a lot of stress for the whole family.The financial and emotional pressures on the sandwich generation can be overwhelming. However,this time in life also has its rewards.It can be a time to rediscover the special qualities of one's parents or children.It can also provide a valuable opportunity to spend more time with them. However,in order to survive this difficult period in their lives,the members of the sand-wich generation must remember that they also need to pay attention to their own needs and look af-ter the quality of their own lives.They can't be totally selfless. According to the first paragraph,many people in middle age______.A: are able to take things easier when their children are grownB: can't enjoy their life as they have expectedC: can't enjoy their life because they haven't worked hard enoughD: are facing great pressure from their work
问答题Directions:There is one passage in this section with 5 statements. Go over the passage quickly and answer the questions on the Answer Sheet. For questions 1 - 5, mark Y (for YES) if the statement agrees with the information given in the passage; N (for NO) if the statement contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. You hear the same complaint all the time as people get older: “My memory is terrible.” Is it all in the mind, or do real changes take place in the brain with age to justify such grumbling (抱怨)? The depressing answer is that the brain’s cells, the neurons, die and decline in efficiency with age. Professor Arthur Shimamura, of the University of California at Berkeley, says there are three main ways in which mental function changes. The first is mental speed, for example how quickly you can react to fast-moving incidents on the road. Drivers in their late teens react quickly but tend to drive too fast, while the over sixties are more cautious but react more slowly. The near-inevitable slowing with age also partly explains why soccer players are seen as old in their thirties, while golf professionals are still in their prime at that age. This type of mental slowing results from a reduction in the efficiency with which the brain’s neurons work. The fact that adults find it harder to learn musical instruments than children points to a second type of mental loss with age—a reduction in learning capacity. The parts of the brain known as the temporal lobes control new learning, and are particularly vulnerable to the effects of aging. This means that, as we get older, we take longer to learn a new language, and slower to master new routines and technologies at work, and we have to rely more on diaries and other mental aids. “Working memory” is the third brain system which is vulnerable to the effects of aging. Working memory is the brain’s “blackboard”, where we juggle from moment to moment the things we have to keep in mind when solving problems, planning tasks and generally organizing our day-to-day life. Absent-mindedness occurs at all ages because of imperfections in the working memory system—so, for instance, you may continually lose your glasses, or find yourself walking into a room of your house only to find that you cannot remember what you came for. Such absent-mindedness tends to creep up on us as we age and occurs because our plans and intentions, which are chalked up on the mental blackboard, are easily wiped out by stray thoughts and other distractions. Stress and preoccupation can also cause such absent-mindedness, in addition to age-related changes in the brain. The frontal lobes of the brain—located behind the forehead and above the eyes—are where the working memory system is located. Like the temporal lobes, which handle new learning, the frontal lobes are more vulnerable to the aging process than other parts of the brain. The news, however, is not all bleak. Although neurons reduce in number with age, the remaining neurons send out new and longer connection fibers (dendrites) to maintain connections and allow us to function reasonably well with only relatively small drops in ability. This and other evidence suggests that the principle “use it or lost it” might apply to the aging brain. Professor Shimamura studied a group of university professors who were still intellectually active, and compared their performance on neuropsychological tests with that of others of their age group, as well as with younger people. He found that on several tests of memory, the mentally active professors in their sixties and early seventies were superior to their contemporaries, and as good as the younger people. Research on animals provide even stronger evidence of the effects of stimulation on the brain structure. Professor Bryan Kolb, of the University of Lethbridge in Canada, has shown that animals kept in stimulating environments show sprouting (生长) and lengthening of the connecting nerve fibers in comparison with animals kept in unstimulating environments. The beneficial effects of continued mental activity are shown by the fact that older contestants in quiz shows are just as fast and accurate in responding to general knowledge questions as younger competitors, suggesting that at least part of their intellectual apparatus is spared the effects of aging because of practice and skill. Such findings lead to the intriguing possibility of “mental fitness training” to accompany jogging and workouts for the health conscious. Research in Stockholm by Professor Lars Backman and his colleague has shown that older people can be trained to use their memory better, with the effects of this training lasting several years. Just as people go bald or grey at different rates, so the same is true for their mental faculties. Why this should be the case for memory and other mental functions is not yet clear. If Professor Shimamura is right, then the degree to which people use and stretch their mental faculties may also have a role to play. Statements: 1．The passage gives a description of several methods of testing mental ability. 2．Professor Shimamura identified a number of areas in which mental function may change. 3．As the temporal lobes of the brain are affected by aging, it becomes harder to pick up new skills. 4．Research indicates that physical training can help to improve memory. 5．Taking part in quizzes is the best way to stimulate the brain.
问答题Practice 2 The magical thing about this network is not just that it collapses distance and makes everyone your neighbor. It also dramatically increases the number of brilliant minds we can have working together on the same problem and that scales up the rate of innovation to a staggering degree. At the same time, for every person in the world who has access to this technology, five people don’t. That means many creative minds are left out of this discussion—smart people with practical intelligence and relevant experience who don’t have the technology to hone their talents or contribute their ideas to the world. We need as many people as possible to have access to this technology, because these advances are triggering a revolution in what human beings can do for one another. They are making it possible not just for national governments, but for universities, corporations, smaller organizations, and even individuals to see problems, see approaches, and measure the impact of their efforts to address the hunger, poverty, and desperation George Marshall spoke of 60 years ago.
单选题In Chongqing, you can often see many people dance outside together if it ______ in the evening.ArainsBdoesn’t rainCwill rainDwon’t rain
单选题Many people save money to（）for their old age.AsupplyBofferCprovideDyield