单选题Passage1Today's adults grew up in schools designed to sort us into the various segments of our social and economic system. The amount of time available to learn was fixed: one year per grade. The amount learned by the end of that time was free to vary: some of us learned a great deal；some，very little. As we advanced through the grades，those who had learned a great deal in previous grades continued to build on those foundations. Those who had failed to master the early prerequisites within the allotted time failed to learn that which followed. After 12 or 13 years of cumulative treatment of this kind，we were，in effect，spread along an achievement continuum that was ultimately reflected in each student's rank in class upon graduation.From the very earliest grades, some students learned a great deal very quickly and consistently scored high on assessments. The emotional effect of this was to help them to see themselves as capable learners, and so these students became increasingly confident in school. That confidence gave them the inner emotional strength to take the risk of striving for more success because they believed that success was within their reach. Driven forward by this optimism, these students continued to try hard, and that effort continued to result in success for them. They became the academic and emotional winners. Notice that the trigger for their emotional strength and their learning success was their perception of their success on formal and informal assessments.But there were other students who didn't fare so well. They scored very low on tests, beginning in the earliest grades. The emotional effect was to cause them to question their own capabilities as learners. They began to lose confidence, which, in turn, deprived them of the emotional reserves needed to continue to take risks. As their motivation warned, of course, their performance plummeted. These students embarked on what they believed to be an irreversible slide toward inevitable failure and lost hope. Once again, the emotional trigger for their decision not to try was their perception of their performance on assessments.Consider the reality-indeed, the paradox-of the schools in which we were reared. If some students worked hard and learned a lot, that was a positive result, and they would finish high in the rank order. But if some students gave up in hopeless failure, that was an acceptable result, too, because they would occupy places very low in the rank order. Their achievement results fed into the implicit mission of schools: the greater the spread of achievement among students, the more it reinforced the rank order. This is why, if some students gave up and stopped trying (even dropped out of school), that was regarded as the student's problem, not the teacher's or the school's.Once again, please notice who is using test results to decide whether to strive for excellence or give up in hopelessness. Thedata-based decision makers in this process are students themselves.Students are deciding whether success is within or beyond reach, whether the learning is worth the required effort, and so whether to try or not. The critical emotions underpinning the decision making process include anxiety, fear of failure, uncertainty, and unwillingness to take risks-all triggered by students' perceptions of their own capabilities as reflected in assessment results.Some students responded to the demands of such environments by working hard and learning a great deal. Others controlled their anxiety by giving up and not caring. The result for them is exactly the opposite of the one society wants. Instead of leaving no child behind, these practices, in effect, drove down the achievement of at least as many students as they successfully elevated. And the evidence suggests that the downside victims are more frequently members of particular socioeconomic and ethnic minorities.Which of the following will be triggered by the assessment results according to the passage？AStudents'learning efforts.BLeaving-no-child-behind policy.CSocioeconomic and ethnic ranking.DSocial disapproval of schools'mission.
单选题
Passage1Today's adults grew up in schools designed to sort us into the various segments of our social and economic system. The amount of time available to learn was fixed: one year per grade. The amount learned by the end of that time was free to vary: some of us learned a great deal；some，very little. As we advanced through the grades，those who had learned a great deal in previous grades continued to build on those foundations. Those who had failed to master the early prerequisites within the allotted time failed to learn that which followed. After 12 or 13 years of cumulative treatment of this kind，we were，in effect，spread along an achievement continuum that was ultimately reflected in each student's rank in class upon graduation.From the very earliest grades, some students learned a great deal very quickly and consistently scored high on assessments. The emotional effect of this was to help them to see themselves as capable learners, and so these students became increasingly confident in school. That confidence gave them the inner emotional strength to take the risk of striving for more success because they believed that success was within their reach. Driven forward by this optimism, these students continued to try hard, and that effort continued to result in success for them. They became the academic and emotional winners. Notice that the trigger for their emotional strength and their learning success was their perception of their success on formal and informal assessments.But there were other students who didn't fare so well. They scored very low on tests, beginning in the earliest grades. The emotional effect was to cause them to question their own capabilities as learners. They began to lose confidence, which, in turn, deprived them of the emotional reserves needed to continue to take risks. As their motivation warned, of course, their performance plummeted. These students embarked on what they believed to be an irreversible slide toward inevitable failure and lost hope. Once again, the emotional trigger for their decision not to try was their perception of their performance on assessments.Consider the reality-indeed, the paradox-of the schools in which we were reared. If some students worked hard and learned a lot, that was a positive result, and they would finish high in the rank order. But if some students gave up in hopeless failure, that was an acceptable result, too, because they would occupy places very low in the rank order. Their achievement results fed into the implicit mission of schools: the greater the spread of achievement among students, the more it reinforced the rank order. This is why, if some students gave up and stopped trying (even dropped out of school), that was regarded as the student's problem, not the teacher's or the school's.Once again, please notice who is using test results to decide whether to strive for excellence or give up in hopelessness. Thedata-based decision makers in this process are students themselves.Students are deciding whether success is within or beyond reach, whether the learning is worth the required effort, and so whether to try or not. The critical emotions underpinning the decision making process include anxiety, fear of failure, uncertainty, and unwillingness to take risks-all triggered by students' perceptions of their own capabilities as reflected in assessment results.Some students responded to the demands of such environments by working hard and learning a great deal. Others controlled their anxiety by giving up and not caring. The result for them is exactly the opposite of the one society wants. Instead of leaving no child behind, these practices, in effect, drove down the achievement of at least as many students as they successfully elevated. And the evidence suggests that the downside victims are more frequently members of particular socioeconomic and ethnic minorities.Which of the following will be triggered by the assessment results according to the passage？
A
Students'learning efforts.
B
Leaving-no-child-behind policy.
C
Socioeconomic and ethnic ranking.
D
Social disapproval of schools'mission.
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解析：
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What is the main idea of the passage?A. Our life is governed by the law of time.B. How to organize time is not worth debating.C. New ways of using time change our society.D. Our time schedule is decided by social customs.
单句理解听力原文：For one full year when the full principal plus interest is paid together, compound interest and simple interest yield the same dollar amount.(1)A．If the time period of the loan is one year, the simple interest and compound interest are the same.B．If the time period of the loan is the same, the simple interest and compound interest are the same.C．When the full principal plus interest is paid together, compound interest and simple interest are of the same dollar amount.D．When the full principal plus interest is paid together, compound interest and simple interest are not of the same dollar amount.
短文理解听力原文： Spot transaction means the actual and variable amount of the currency of one country which at any given time, can be bought for a fixed sum in the currency of another country. It is a term meaning that these transactions are settled on the second working day from the date of the deal. For example, you buy $ 5,000.00 US dollars on October 10th( say Wednesday) , the purchased US dollars will value on October 12th.21. What does spot transaction mean?22.When are the spot transaction settled?23.What's the value date for purchase of $ 5,000.00 US dollars in the passage?(21)A．It means that at any time you can buy currency of one country for another currency.B．It means that the actual and variable amount of one currency can be bought for a fixed sum in another currency at any given time.C．It means that any kind of currency can be bought at any time for another currency.D．It means that the actual and fixed amount of the currency of one country at any time can be bought for a variable sum in the currency of another currency.
听力原文：M: The rate on a personal loan is fixed according to the base rate at the time when the loan is made.W: But it is always higher than the base rate, isn't it?Q: What is determined when a personal loan is made?(14)A．Rate on the personal loan.B．Base rate of the bank.C．The amount of payment.D．Personal loan's time period.
According to the passage, one important change in United States education by the 1920's was that ______.A) most places required children to attendB) the amount of time spent on formal education was limitedC) new regulations were imposed on nontraditional educationD) adults and children studied in the same classes
Several days ago，some students from the US visited our school． When we talked，l discov-ered (41) differences in school life between the US and China． For example，each class (42) fifty minutes in the US． It is a little (43) than that in China． We usually have forty or forty-five minutes iii each class． Another difference is that they have less break time between (44) ．13esides，although most schools in both countries finish their (45) classes at 120 'clock，the students in the US only have an-hour-long break，so they (46) eat lunch quickly． Their af-ternoon classes begin at l:00 pm and school is over (47) 3:00 pm． Then they take part in club activities or play sports．Many Chinese students don't work during their high school years ，while the US students．like to find a part-time job in (48) free time． They don't have a dream job in mind． They think (49) is no difference between jobs． Working is a useful experience for them and they make money at the same time． Some of them even take one-year full time jobs (50 )they leave high school and then go to college．( )41．A． noB． fewC．littleD． some
阅读 Passage 1,完成小题. Passage 1 Today'sadults grew up in schools designed to sort us into the various segments of oursocial and economic system. Theamount of time available to learn was fixed: one year per grade. The amount learnedby the end of that time was free to vary:?some of us learned a great deal; some, very little. As weadvanced through the grades, those who had learned a great deal in previousgrades continued to build on those foundations. Those who had failed to masterthe early prerequisites within the allotted time failed to learn that whichfollowed. After 12 or 13 years of cumulative treatment of this kind, we were,in effect, spread along an achievement continuumthat was ultimately reflected in each student's rank in class upon graduation.?Fromthe very earliest grades, some students learned a great deal very quickly andconsistently scored high on assessments. The emotional effect of this was tohelp them to see themselves as capable learners, and so these students becameincreasingly confident in school. That confidence gave them the inner emotionalstrength to take the risk of striving for more success because they believed thatsuccess was within their reach. Driven forward by this optimism, these studentscontinued to try hard, and that effort continued to result in success for them.They became the academic and emotional winners. Notice that the trigger fortheir emotional strength and their learning success was their perception oftheir success on formal and informal assessments.?Butthere were other students who didn’t fare so well. They scored very low ontests, beginning in the earliest grades. The emotional effect was to cause themto question their own capabilities as learners. They began to lose confidence,which, in turn, deprived them of the emotional reserves needed to continue totake risks. As their motivation warned, of course, their performance?plummeted.These students embarked on what they believed to be an irreversible slide towardinevitable failure and lost hope. Once again, the emotional trigger for theirdecision not to try was their perception of their performance on assessments.?Consider the reality—indeed, the paradox of— the schools in whichwe were reared.?If some students worked hard and learneda lot, that was a positive result, and they would finish high in the rankorder. But if some students gave up in hopeless failure, that was an acceptableresult, too, because they would occupy places very low in the rank order. Theirachievement results fed into the implicit mission of schools: the greater thespread of achievement among students, the more it reinforced the rank order.This is why, if some students gave up and stopped trying (even dropped out of school),that was regarded as the student's problem, not the teacher's or the school's.??Onceagain, please notice who is using test results to decide whether to strive forexcellence or give up in hopelessness. The "data-based decisionmakers" in this process are students themselves. Students are decidingwhether success is within or beyond reach, whether the learning is worth the requiredeffort, and so whether to try or not. The critical emotions underpinning thedecision making process include anxiety, fear of failure, uncertainty, andunwillingness to take risks-all triggered by students ' perceptions of theirown capabilities as reflected in assessment results.?Some students responded to the demands of suchenvironments by working hard and learning a great deal. Others controlled theiranxiety by giving up and not caring. The result for them is exactly theopposite of the one society wants. Instead of leaving no child behind, thesepractices, in effect, drove down the achievement of at least as many studentsas they successfully elevated. And the evidence suggests that the downsidevictims are more frequently members of particular socioeconomic and ethnicminorities.What has made students spread along an achievement continuum according to the passage?A.The allotted time to learn.B.Social and economic system.C.The early prerequisites students mastered.D.Performance on formal and informal assessments.
This is the age of the quick action. We have instant satisfaction, fast food, speed reading, mobile phones; even the stress management books have titles like "Stress Management in 60 Seconds". Canadian Classics Professor Margaret Visser points out that the perception that we have "no time" is one of the most strict concepts of Western culture. Visser says that "no time" is used as an excuse and also as a spur (刺激); it both goads us and forces us, just as a concept such as "honour" did for the ancient Greeks. According to Visser, the feeling that Westerners have "no time" is abstract, quantitative, amoral (非道德性的), unarguable, bringing pressure on each person as an individual. At the same time, the "no time" excuse escapes censure by claiming to be a condition created entirely out of our good fortune. Life offers "so many pleasures, so many choices". The fact that women now work outside the home has contributed to the "no time" trend. But more important, Visser says, is the fact that feeling rushed has become an important component of our economy. Marketing of "time-saving" products causes people to buy more and work longer. So we eat out or buy prepared food to save time. The fax-it-to-me-in-my-car technology only contributes to the constant hurry. In our rushed and exhausted state, even the obligation (义务) to sit down to casual meal with family seems like a pressure. In comparison with the decision to act on a sudden whims (一时的兴致) to consume a microwave mug of soup, the act of eating together and not getting up from the table until everyone else has finished seems an incredibly time-consuming event. Being in one′ s own personal hurry in the West is somehow "free and preferable". What does "goad" in "it both goads us and forces us" in the second paragraph probably mean?A.Free.B.Sour.C.Instruct.D.Stimulate.
In deed more and more schools are discovering that foreign languages are best taught in the lower grades.Young children often can learn several languages by being（ ）to them,while adults have a much harder time learning another language once the rules of their first language have become firmly fixed.A.disclosedB.revealedC.immersedD.exposed
When it comes to friends, I desire those who will share my happiness, who possess wings of their own and who will fly with me. I seek friends whose qualities illuminate me and train me up for love. It is for these people that I reserve the glowing hours, too good not to share. When I was in the eighth grade, I had a friend. We were shy and "too serious" about our stud- ies when it was becoming fashionable with our classmates to learn acceptable social behaviors. We said little at school, but she would come to my house and we would sit down with pencils and paper, and one of us would say:"Let's start with a train whistle today." We would sit quietly together and write separate poems or stories that grew out of a train whistle. Then we would read them aloud. At the end of that school year, we were changing into social creatures and the stories and poems stopped. When I lived for a time in London, I had a friend, he was in despair and I was in despair. But our friendship was based on the idea in each of us that we would be sorry later if we did not explore this great city because we had felt bad at the time. We met every Sunday for five weeks and found many excellent things. We walked until our despairs disappeared and then we parted. We gave London to each other. For almost four years I have had remarkable friend whose imagination illuminates mine. We write long letters in which we often discover our strangest selves. Each of us appears, sometimes in ~ a funny way, in the other's dreams. She and I agree that, at certain times, we seem to be parts of the same mind. In my most interesting moments, I often think : "Yes, I must tell..." We have never met. It is such comforting companions I wish to keep. One bright hour with their kind is worth more to me than the lifetime services of a psychologist,who will only fill up the healing silence necessary to those darkest moments in which I would rather be my own best friend. What is the best title for the passage?A. Unforgettable Experiences B. Remarkable ImaginationC. Lifelong Friendship D. Noble Companions
When it comes to friends, I desire those who will share my happiness, who possess wings of their own and who will fly with me. I seek friends whose qualities illuminate me and train me up for love. It is for these people that I reserve the glowing hours, too good not to share. When I was in the eighth grade, I had a friend. We were shy and "too serious" about our stud- ies when it was becoming fashionable with our classmates to learn acceptable social behaviors. We said little at school, but she would come to my house and we would sit down with pencils and paper, and one of us would say:"Let's start with a train whistle today." We would sit quietly together and write separate poems or stories that grew out of a train whistle. Then we would read them aloud. At the end of that school year, we were changing into social creatures and the stories and poems stopped. When I lived for a time in London, I had a friend, he was in despair and I was in despair. But our friendship was based on the idea in each of us that we would be sorry later if we did not explore this great city because we had felt bad at the time. We met every Sunday for five weeks and found many excellent things. We walked until our despairs disappeared and then we parted. We gave London to each other. For almost four years I have had remarkable friend whose imagination illuminates mine. We write long letters in which we often discover our strangest selves. Each of us appears, sometimes in ~ a funny way, in the other's dreams. She and I agree that, at certain times, we seem to be parts of the same mind. In my most interesting moments, I often think : "Yes, I must tell..." We have never met. It is such comforting companions I wish to keep. One bright hour with their kind is worth more to me than the lifetime services of a psychologist,who will only fill up the healing silence necessary to those darkest moments in which I would rather be my own best friend. In the eighth grade, what the author did before developing proper social behavior was to_________.A. become serious about her studyB. go to her friend's house regularlyC. learn from her classmates at schoolD. share poems and stories with her friend
Passage FourHow can we get rid of garbage?Do we have enough energy sources to meet our future energy needs?These are two important questions that many people are asking today．Some people think that man might be able to solve both problems at the same time,They suggest using garbage as an energy source,and at the same time it can save the land to hold garbage．For a long time,people buried garbage or dumped it on empty land．Now,empty land is scarce．But more and more garbage is produced each year．However,garbage can be a good fuel to use．The things in garbage do not look like coal,petroleum,or natural gas;but they are chemically similar to these fossil fuels．As we use up our fossil-fuel supplies,we might be able to use garbage as an energy source．Burning garbage is not a new idea．Some cities in Europe and the United States have been burning garbage for years．The heat that is produced by burning garbage is used to boil water．The steam that is produced is used to make electricity or to heat nearby,buildings．In Paris,France,some power plants burn almost 2 million metric tons of the cities garbage each year．The amount of energy produced is about the same as would be produced by burning almost a half million barrels of oil．Our fossil fuel supplies are limited．Burning garbage might be one kind of energy source that we can use to help meet our energy needs．This method could also reduce the amount if garbage piling up on the earth．What is the author's attitude?A.DelighteB.SadC.Agree inD.Disagree in
Even for one single connection, the retransmission time should not be fixed.A connection may be able to send segments and receive （74）faster during nontraffic period than during congested periods. TCP uses the dynamic retransmission time,a transmission time is different for each connection and which may be changed during the same connection. A.connections B.requests C.acknowledgmentsD.datagrams
VOIP is being implemented on the Company network. In a properly designed network， what is the maximum amount of time a voice package should spend crossing a network？ （）A、90 millisecondsB、120 millisecondsC、150 millisecondsD、240 milliseconds
When creating a Product Promotion using WebSphere Commerce Accelerator， which of the following discount types can be selected？（）A、Coupon off next purchaseB、Discounted shippingC、Extra Bonus PointsD、Fixed amount off per itemE、Free gift with purchase
In an iostat report， which of the following options best describes the value of % iowait？（）A、 The amount of time taken to service an I/O interruptB、 The percentage of time CPU（s） are waiting for page insC、 The percentage of time the CPU9（s） are waiting on networkD、 The percentage of time the CPU（s） are waiting for outstanding disk I/O requests
单选题Social companionship is beneficial that _____.Ait helps strengthen our ties with relativesBit enables us to eliminate our faults and mistakesCit makes our leisure-time activities more ‘enjoyableDit draws our attention away from our worries and troubles
单选题In an iostat report， which of the following options best describes the value of % iowait？（）A The amount of time taken to service an I/O interruptB The percentage of time CPU（s） are waiting for page insC The percentage of time the CPU9（s） are waiting on networkD The percentage of time the CPU（s） are waiting for outstanding disk I/O requests
单选题Passage1Today's adults grew up in schools designed to sort us into the various segments of our social and economic system. The amount of time available to learn was fixed: one year per grade. The amount learned by the end of that time was free to vary: some of us learned a great deal；some，very little. As we advanced through the grades，those who had learned a great deal in previous grades continued to build on those foundations. Those who had failed to master the early prerequisites within the allotted time failed to learn that which followed. After 12 or 13 years of cumulative treatment of this kind，we were，in effect，spread along an achievement continuum that was ultimately reflected in each student's rank in class upon graduation.From the very earliest grades, some students learned a great deal very quickly and consistently scored high on assessments. The emotional effect of this was to help them to see themselves as capable learners, and so these students became increasingly confident in school. That confidence gave them the inner emotional strength to take the risk of striving for more success because they believed that success was within their reach. Driven forward by this optimism, these students continued to try hard, and that effort continued to result in success for them. They became the academic and emotional winners. Notice that the trigger for their emotional strength and their learning success was their perception of their success on formal and informal assessments.But there were other students who didn't fare so well. They scored very low on tests, beginning in the earliest grades. The emotional effect was to cause them to question their own capabilities as learners. They began to lose confidence, which, in turn, deprived them of the emotional reserves needed to continue to take risks. As their motivation warned, of course, their performance plummeted. These students embarked on what they believed to be an irreversible slide toward inevitable failure and lost hope. Once again, the emotional trigger for their decision not to try was their perception of their performance on assessments.Consider the reality-indeed, the paradox-of the schools in which we were reared. If some students worked hard and learned a lot, that was a positive result, and they would finish high in the rank order. But if some students gave up in hopeless failure, that was an acceptable result, too, because they would occupy places very low in the rank order. Their achievement results fed into the implicit mission of schools: the greater the spread of achievement among students, the more it reinforced the rank order. This is why, if some students gave up and stopped trying (even dropped out of school), that was regarded as the student's problem, not the teacher's or the school's.Once again, please notice who is using test results to decide whether to strive for excellence or give up in hopelessness. Thedata-based decision makers in this process are students themselves.Students are deciding whether success is within or beyond reach, whether the learning is worth the required effort, and so whether to try or not. The critical emotions underpinning the decision making process include anxiety, fear of failure, uncertainty, and unwillingness to take risks-all triggered by students' perceptions of their own capabilities as reflected in assessment results.Some students responded to the demands of such environments by working hard and learning a great deal. Others controlled their anxiety by giving up and not caring. The result for them is exactly the opposite of the one society wants. Instead of leaving no child behind, these practices, in effect, drove down the achievement of at least as many students as they successfully elevated. And the evidence suggests that the downside victims are more frequently members of particular socioeconomic and ethnic minorities.Which of the following is closest in meaning to the underlined word plummeted in Paragraph 3?APunished timely.BSpread widely.CContinued gradually.DDropped sharply.
单选题What does the world bank study show?AThe use of tobacco results in a global net loss of US $200 billion per year in the developing world.BEconomic loss caused by tobacco in the developing countries equals that of the developed countries.CHuge amount of economic loss has been incurred by closing down tobacco factories in the developing countries.DThe use of tobacco results in a global net loss of US $200 billion per year, but it does not affect the quality of life of smokers or their families.
单选题Passage1Today's adults grew up in schools designed to sort us into the various segments of our social and economic system. The amount of time available to learn was fixed: one year per grade. The amount learned by the end of that time was free to vary: some of us learned a great deal；some，very little. As we advanced through the grades，those who had learned a great deal in previous grades continued to build on those foundations. Those who had failed to master the early prerequisites within the allotted time failed to learn that which followed. After 12 or 13 years of cumulative treatment of this kind，we were，in effect，spread along an achievement continuum that was ultimately reflected in each student's rank in class upon graduation.From the very earliest grades, some students learned a great deal very quickly and consistently scored high on assessments. The emotional effect of this was to help them to see themselves as capable learners, and so these students became increasingly confident in school. That confidence gave them the inner emotional strength to take the risk of striving for more success because they believed that success was within their reach. Driven forward by this optimism, these students continued to try hard, and that effort continued to result in success for them. They became the academic and emotional winners. Notice that the trigger for their emotional strength and their learning success was their perception of their success on formal and informal assessments.But there were other students who didn't fare so well. They scored very low on tests, beginning in the earliest grades. The emotional effect was to cause them to question their own capabilities as learners. They began to lose confidence, which, in turn, deprived them of the emotional reserves needed to continue to take risks. As their motivation warned, of course, their performance plummeted. These students embarked on what they believed to be an irreversible slide toward inevitable failure and lost hope. Once again, the emotional trigger for their decision not to try was their perception of their performance on assessments.Consider the reality-indeed, the paradox-of the schools in which we were reared. If some students worked hard and learned a lot, that was a positive result, and they would finish high in the rank order. But if some students gave up in hopeless failure, that was an acceptable result, too, because they would occupy places very low in the rank order. Their achievement results fed into the implicit mission of schools: the greater the spread of achievement among students, the more it reinforced the rank order. This is why, if some students gave up and stopped trying (even dropped out of school), that was regarded as the student's problem, not the teacher's or the school's.Once again, please notice who is using test results to decide whether to strive for excellence or give up in hopelessness. Thedata-based decision makers in this process are students themselves.Students are deciding whether success is within or beyond reach, whether the learning is worth the required effort, and so whether to try or not. The critical emotions underpinning the decision making process include anxiety, fear of failure, uncertainty, and unwillingness to take risks-all triggered by students' perceptions of their own capabilities as reflected in assessment results.Some students responded to the demands of such environments by working hard and learning a great deal. Others controlled their anxiety by giving up and not caring. The result for them is exactly the opposite of the one society wants. Instead of leaving no child behind, these practices, in effect, drove down the achievement of at least as many students as they successfully elevated. And the evidence suggests that the downside victims are more frequently members of particular socioeconomic and ethnic minorities.Which of the following will be triggered by the assessment results according to the passage？AStudents'learning efforts.BLeaving-no-child-behind policy.CSocioeconomic and ethnic ranking.DSocial disapproval of schools'mission.
单选题In this passage, the author mainly tells us that _____.Aeveryone can be forgetful sometimes regardless of one’s ageBwe can prevent our sound mind from aging with certain methodsCbrain aging starts from the time when we are in our 20s and 30sDmemory loss is a sign that shows we are getting old
单选题Passage1Today's adults grew up in schools designed to sort us into the various segments of our social and economic system. The amount of time available to learn was fixed: one year per grade. The amount learned by the end of that time was free to vary: some of us learned a great deal；some，very little. As we advanced through the grades，those who had learned a great deal in previous grades continued to build on those foundations. Those who had failed to master the early prerequisites within the allotted time failed to learn that which followed. After 12 or 13 years of cumulative treatment of this kind，we were，in effect，spread along an achievement continuum that was ultimately reflected in each student's rank in class upon graduation.From the very earliest grades, some students learned a great deal very quickly and consistently scored high on assessments. The emotional effect of this was to help them to see themselves as capable learners, and so these students became increasingly confident in school. That confidence gave them the inner emotional strength to take the risk of striving for more success because they believed that success was within their reach. Driven forward by this optimism, these students continued to try hard, and that effort continued to result in success for them. They became the academic and emotional winners. Notice that the trigger for their emotional strength and their learning success was their perception of their success on formal and informal assessments.But there were other students who didn't fare so well. They scored very low on tests, beginning in the earliest grades. The emotional effect was to cause them to question their own capabilities as learners. They began to lose confidence, which, in turn, deprived them of the emotional reserves needed to continue to take risks. As their motivation warned, of course, their performance plummeted. These students embarked on what they believed to be an irreversible slide toward inevitable failure and lost hope. Once again, the emotional trigger for their decision not to try was their perception of their performance on assessments.Consider the reality-indeed, the paradox-of the schools in which we were reared. If some students worked hard and learned a lot, that was a positive result, and they would finish high in the rank order. But if some students gave up in hopeless failure, that was an acceptable result, too, because they would occupy places very low in the rank order. Their achievement results fed into the implicit mission of schools: the greater the spread of achievement among students, the more it reinforced the rank order. This is why, if some students gave up and stopped trying (even dropped out of school), that was regarded as the student's problem, not the teacher's or the school's.Once again, please notice who is using test results to decide whether to strive for excellence or give up in hopelessness. The"data-based decision makers" in this process are students themselves.Students are deciding whether success is within or beyond reach, whether the learning is worth the required effort, and so whether to try or not. The critical emotions underpinning the decision making process include anxiety, fear of failure, uncertainty, and unwillingness to take risks-all triggered by students' perceptions of their own capabilities as reflected in assessment results.Some students responded to the demands of such environments by working hard and learning a great deal. Others controlled their anxiety by giving up and not caring. The result for them is exactly the opposite of the one society wants. Instead of leaving no child behind, these practices, in effect, drove down the achievement of at least as many students as they successfully elevated. And the evidence suggests that the downside victims are more frequently members of particular socioeconomic and ethnic minorities.What is the author's attitude towards the old mission of assessment?ASupportive.BIndifferent.CNegative.DNeutral.
单选题When the prime movers of two paralleled generators are equipped with mechanical- hydraulic governors, and are operating within their designed range, the unit with the least amount of speed droop will （）.Apick up more of any increase in loadBpick up less of any increase in loadCshare an equal amount of any increase in loadDdrop an equal amount of any decrease in load
单选题Passage1Today's adults grew up in schools designed to sort us into the various segments of our social and economic system. The amount of time available to learn was fixed: one year per grade. The amount learned by the end of that time was free to vary: some of us learned a great deal；some，very little. As we advanced through the grades，those who had learned a great deal in previous grades continued to build on those foundations. Those who had failed to master the early prerequisites within the allotted time failed to learn that which followed. After 12 or 13 years of cumulative treatment of this kind，we were，in effect，spread along an achievement continuum that was ultimately reflected in each student's rank in class upon graduation.From the very earliest grades, some students learned a great deal very quickly and consistently scored high on assessments. The emotional effect of this was to help them to see themselves as capable learners, and so these students became increasingly confident in school. That confidence gave them the inner emotional strength to take the risk of striving for more success because they believed that success was within their reach. Driven forward by this optimism, these students continued to try hard, and that effort continued to result in success for them. They became the academic and emotional winners. Notice that the trigger for their emotional strength and their learning success was their perception of their success on formal and informal assessments.But there were other students who didn't fare so well. They scored very low on tests, beginning in the earliest grades. The emotional effect was to cause them to question their own capabilities as learners. They began to lose confidence, which, in turn, deprived them of the emotional reserves needed to continue to take risks. As their motivation warned, of course, their performance plummeted. These students embarked on what they believed to be an irreversible slide toward inevitable failure and lost hope. Once again, the emotional trigger for their decision not to try was their perception of their performance on assessments.Consider the reality-indeed, the paradox-of the schools in which we were reared. If some students worked hard and learned a lot, that was a positive result, and they would finish high in the rank order. But if some students gave up in hopeless failure, that was an acceptable result, too, because they would occupy places very low in the rank order. Their achievement results fed into the implicit mission of schools: the greater the spread of achievement among students, the more it reinforced the rank order. This is why, if some students gave up and stopped trying (even dropped out of school), that was regarded as the student's problem, not the teacher's or the school's.Once again, please notice who is using test results to decide whether to strive for excellence or give up in hopelessness. Thedata-based decision makers in this process are students themselves.Students are deciding whether success is within or beyond reach, whether the learning is worth the required effort, and so whether to try or not. The critical emotions underpinning the decision making process include anxiety, fear of failure, uncertainty, and unwillingness to take risks-all triggered by students' perceptions of their own capabilities as reflected in assessment results.Some students responded to the demands of such environments by working hard and learning a great deal. Others controlled their anxiety by giving up and not caring. The result for them is exactly the opposite of the one society wants. Instead of leaving no child behind, these practices, in effect, drove down the achievement of at least as many students as they successfully elevated. And the evidence suggests that the downside victims are more frequently members of particular socioeconomic and ethnic minorities.Which of the following describes the paradox of the schools？ADiscrepancy between what they say and what they do.BDifferences between teachers'problems and schools'problems.CAdvantages and disadvantages of students'learning opportunities.DStudents'perception and the reality of their performance on assessments.
单选题The velocity of the wind，its steady direction，and the amount of time it has blown determines a wind driven current’s（）.AtemperatureBdensityCdeflectionDspeed
单选题Passage1Today's adults grew up in schools designed to sort us into the various segments of our social and economic system. The amount of time available to learn was fixed: one year per grade. The amount learned by the end of that time was free to vary: some of us learned a great deal；some，very little. As we advanced through the grades，those who had learned a great deal in previous grades continued to build on those foundations. Those who had failed to master the early prerequisites within the allotted time failed to learn that which followed. After 12 or 13 years of cumulative treatment of this kind，we were，in effect，spread along an achievement continuum that was ultimately reflected in each student's rank in class upon graduation.From the very earliest grades, some students learned a great deal very quickly and consistently scored high on assessments. The emotional effect of this was to help them to see themselves as capable learners, and so these students became increasingly confident in school. That confidence gave them the inner emotional strength to take the risk of striving for more success because they believed that success was within their reach. Driven forward by this optimism, these students continued to try hard, and that effort continued to result in success for them. They became the academic and emotional winners. Notice that the trigger for their emotional strength and their learning success was their perception of their success on formal and informal assessments.But there were other students who didn't fare so well. They scored very low on tests, beginning in the earliest grades. The emotional effect was to cause them to question their own capabilities as learners. They began to lose confidence, which, in turn, deprived them of the emotional reserves needed to continue to take risks. As their motivation warned, of course, their performance plummeted. These students embarked on what they believed to be an irreversible slide toward inevitable failure and lost hope. Once again, the emotional trigger for their decision not to try was their perception of their performance on assessments.Consider the reality-indeed, the paradox-of the schools in which we were reared. If some students worked hard and learned a lot, that was a positive result, and they would finish high in the rank order. But if some students gave up in hopeless failure, that was an acceptable result, too, because they would occupy places very low in the rank order. Their achievement results fed into the implicit mission of schools: the greater the spread of achievement among students, the more it reinforced the rank order. This is why, if some students gave up and stopped trying (even dropped out of school), that was regarded as the student's problem, not the teacher's or the school's.Once again, please notice who is using test results to decide whether to strive for excellence or give up in hopelessness. Thedata-based decision makers in this process are students themselves.Students are deciding whether success is within or beyond reach, whether the learning is worth the required effort, and so whether to try or not. The critical emotions underpinning the decision making process include anxiety, fear of failure, uncertainty, and unwillingness to take risks-all triggered by students' perceptions of their own capabilities as reflected in assessment results.Some students responded to the demands of such environments by working hard and learning a great deal. Others controlled their anxiety by giving up and not caring. The result for them is exactly the opposite of the one society wants. Instead of leaving no child behind, these practices, in effect, drove down the achievement of at least as many students as they successfully elevated. And the evidence suggests that the downside victims are more frequently members of particular socioeconomic and ethnic minorities.What has made students spread along an achievement continuum according to the passage?AThe allotted time to learn.BSocial and economic system.CThe early prerequisites students mastered.DPerformance on formal and informal assessments.