Text 1 It is a familiar ritual for many:after a late night out you reach for your smartphone to hail an Uber home.only to find-disaster-that the fare will be three times the normal rate.Like many things beloved by economists,"surge pricing"of the sort that occasionally afflicts Uber-users is both efficient and deeply unpopular.From a consumer's perspective,surge pricing is annoying at best and downright offensive when applied during emergencies.Extreme fare surges often lead to outpourings of public criticism:when a snowstorm paralysed New York in 2013,celebrities,including Salman Rushdie,took to social media to rail against triple-digit fares for relatively short rides.Some city governments have banned the practice altogether:Delhi's did so in April.Surge（or dynamic）pricing relies on frequent price adjustments to match supply and demand.Such systems are sometimes used to set motorway tolls（which rise and fall with demand in an effort to keep traffic flowing）,or to adjust the price of energy in electricity markets.A lower-tech version is common after natural disasters,when shopkeepers raise the price of necessities like bottled water and batteries as supplies run low.People understandably detest such practices.It offends the sensibilities of non-economists that the same journey should cost different amounts from one day or hour to the next-and more,invariably,when the need is most desperate.Yet surge fares also demonstrate the elegance with which prices moderate a marketplace.When demand in an area spikes and the waiting time for a car rises,surge pricing kicks in;users requesting carsare informed that the fare will be a multiple of the normal rate.As the multiple rises,the market goes to work.Higher fares ration available cars by willingness to pay:to richer users,in some cases,but also to those less able to wait out the surge period or with fewer good altematives.Charging extra to those without good alternatives sounds like gouging,yet without surge pricing such riders would be less likely to get a ride at all.since there would be no incentive for all the other people requesting cars to drop out.Surge pricing also boosts supply,at least locally,The extra money is shared with drivers,who therefore have an incentive to l:ravel to areas with high demand to help relieve the crush.Whether Uber remains a big part of the transport network in future,and whether it retains surge pricing,depends in part on how well local govemments manage the transport system as a whole.In other words,surge pricing is really only as painful as local officials allow it to be.24.The cause of surge fares in automobiles lies inA.the elegance and attraction of cars.B.a rush of demand in some areas.C.richer users'willingness to pay extra money.D.a short supply ofgood altematives.
Text 1 It is a familiar ritual for many:after a late night out you reach for your smartphone to hail an Uber home.only to find-disaster-that the fare will be three times the normal rate.Like many things beloved by economists,"surge pricing"of the sort that occasionally afflicts Uber-users is both efficient and deeply unpopular.From a consumer's perspective,surge pricing is annoying at best and downright offensive when applied during emergencies.Extreme fare surges often lead to outpourings of public criticism:when a snowstorm paralysed New York in 2013,celebrities,including Salman Rushdie,took to social media to rail against triple-digit fares for relatively short rides.Some city governments have banned the practice altogether:Delhi's did so in April.Surge（or dynamic）pricing relies on frequent price adjustments to match supply and demand.Such systems are sometimes used to set motorway tolls（which rise and fall with demand in an effort to keep traffic flowing）,or to adjust the price of energy in electricity markets.A lower-tech version is common after natural disasters,when shopkeepers raise the price of necessities like bottled water and batteries as supplies run low.People understandably detest such practices.It offends the sensibilities of non-economists that the same journey should cost different amounts from one day or hour to the next-and more,invariably,when the need is most desperate.Yet surge fares also demonstrate the elegance with which prices moderate a marketplace.When demand in an area spikes and the waiting time for a car rises,surge pricing kicks in;users requesting carsare informed that the fare will be a multiple of the normal rate.As the multiple rises,the market goes to work.Higher fares ration available cars by willingness to pay:to richer users,in some cases,but also to those less able to wait out the surge period or with fewer good altematives.Charging extra to those without good alternatives sounds like gouging,yet without surge pricing such riders would be less likely to get a ride at all.since there would be no incentive for all the other people requesting cars to drop out.Surge pricing also boosts supply,at least locally,The extra money is shared with drivers,who therefore have an incentive to l:ravel to areas with high demand to help relieve the crush.Whether Uber remains a big part of the transport network in future,and whether it retains surge pricing,depends in part on how well local govemments manage the transport system as a whole.In other words,surge pricing is really only as painful as local officials allow it to be.24.The cause of surge fares in automobiles lies in
A.the elegance and attraction of cars.
B.a rush of demand in some areas.
C.richer users'willingness to pay extra money.
D.a short supply ofgood altematives.
B.a rush of demand in some areas.
C.richer users'willingness to pay extra money.
D.a short supply ofgood altematives.
参考解析
解析：事实细节题。第三段举了汽车价格的例子，其中第五句提到“在没有很好的替代品时收取额外费用，听起来像是抢劫”，因此可推测汽车价格的提高是因为供不应求，且没有好的替代品，故选D项。【干扰排除】第三段第一句提到，价格的增长证明了市场调节的好处，并不是汽车的优雅，所以A项错误；第三段最后一句提到价格升高能缓解一些地方的需求，但部分地区的需求不是汽车价格增高的原因，B项颠倒因果关系，可排除；C项“更有钱的用户愿意付额外费用”，第三段提到有钱人为了减少等待时间，愿意付更高价格，但这不是价格增高的原因，而是结果。
相关考题：
You will have to practice () times before you can do it . A.may moreB.more severalC.more oftenD.more many
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You should tell ________ possible to support your ideasA.as many information as B.as much fact as C.as many facts as D.as many news as
When you're teenager(青少年) it seems that every time you say "l want to．．． "，your par-ents answer，" No，you can' t． "Young people further complain that their parents do not (11) them． When something goes(12) ，most parents just don't believe in their children．(13) asking why，they think their kids are wrong． And not many parents allow their kids to choose for themselves．Yes，(14) is true that your parents sometimes treat you as a little could． But remember that not long ago you were really a child． Your parents still remember the childish (15) you used to make． They want to protect you (16) you don-t want them to do so．So，if you want to get(17 freedom(自由)，please try to understand you don-t lie to them．Try a more friendly way．lf you want them to (18) you to stay out late，don't just say "All (19) kids can stay out late． Tell them as much as you can about what you want to do and where you’ll be and (20) it，s important for you to stay out late． Then they just might say "yes ．( )11．A． enjoyB． preferC． understandD． decide
If you go into the forests with friends，stay with them． If you don't，you may get lost．If you do get lost，this is what you should do．Sit down and stay where you are．'Don't try to find your friends． Let them find you． You can help them to find you by staying in one place．There is another way to help your friends or other people to find you． Give them a signal (信号) by shouting or whistling(吹口哨) three times． Stop． Then shout or whistle three times again． Any signal given three times is a call for help．Keep on shouting or whistling，always three times'together． When people hear you，they will give two shouts or two whistles． When a signal is given twice，it is an answer to a call for help．lf you don-t think that you will get help before night comes，try to make a small room with branches(树枝)．What should you do if you get hungry or need to drink water? You would have to leave your little branch room to look for something to eat and drink． Don't just walk away． Drop small branches as you walk so that you can find your way back．The most important thing to do when you are lost-stay in one place．( )16． If you get lost in the forests，you should walk everywhere to find your friends as soon as possible．
--How many boy students are there in your class?--There are __________girls as boys.A．three times many asB．many as three timesC．as many three timesD．three times as many
Passage 1Self-driving vehicles threaten to send truck drivers to the unemployment office． Computerprograms can now write journalistic accounts of sporting events and stock price movements． Thereare even computers that can grade essay exams with reasonable accuracy, which could revolutionizemy own job． Increasingly, machines are providing not only the brawn but the brains, too． And thatraises the question of where humans fit into this picture--who will prosper and who won′t in thisnew kind of machine economyWithin five years we are likely to have the world′s best education, or close to it, online andfree． But not everyone will sit down and go through the material without a professor pushing them todo the work．Your Smartphone will record data on your life and, when asked, will tell you what to do,drawing on data from your home or from your spouse and friends if need be． "You′ ve thrown outthat bread the last three times you′ve bought it, give it a pass" will be a text message of the future．How about"Now is not the time to start another argument with your wife" The GPS is just thebeginning of computer-guided instruction． Take your Smartphone on a date, and it might vibrate inyour pocket to indicate "Kiss her now．" If you hesitate for fear of being seen as pushy, it may write:"Who cares if you look bad You are sampling optimally in the quest for a lifetime companion．"A lot of jobs will consist of making people feel either very good or very bad about themselves．Coaches, mentors and disciplinarians will spread to many areas of life, at least for those of us whocan stand to listen to them． These people will cajole us, flatter us and shame us into improving ourlives, our work habits and our consumption．Computing and software will make it easier to measure performance and productivity．It will be harder to gloss over our failings and maintain self-deception． In essence everyone willsuffer the fate of professional chess players, who will always know when they have lost a game, havean exact numerical rating for their overall performance, and find excuses for failure hard to come by．Individuals will have many measures of their proficiency． They will have an incentive todisclose that information to get the better job or social opportunity． You′ll assume the worst aboutthose who keep secrets, and so openness will reign． Many of us will start to hate the idea of BigData．What does the underlined phrase "the question" in Paragraph 1 refer toA.Where do humans fit into this pictureB.Will machines eventually replace human beingsC.Which could revolutionize my own job, teaching at schoolD.Who will prosper and who will not in this machine economy
共用题干I don't think there is anything wrong with your blood.______(46).If you don't sleep for hours during the early part of the evening,you would be more ready to sleep at bedtime.If you didn't nap after dinner,you would not want to stay up so late,and you would not feel the need to take a sleeping pill.______(47).This helps account for the fact that you feel tired all day.You should get out of the habit of sleeping during the evening. Right after your evening meal,engage in some sort of physical activity一a sport such as bowling,perhaps.______(48).Then go to bed at your usual time or a little earlier,and you should be able to get a good night's rest without taking a pill.If you can get into the habit of spending your evenings this way,I am sure you will feel less tired during the day.______(49).If so,get up and watch television or do some jobs around your house until you feel sleepy.If you fall asleep and then wake up a few hours later,get up but do not take a sleeping pill.Read a while or listen to the radio,and make yourself a few hours' sleep that night.You will feel better in the morning than you usually feel after taking a pill.______ (50).The most important thing is to avoid taking that nap right after dinner and avoid taking pills.________（50）A:The key to your problem is that long nap after dinnerB:Or get together with friends for an evening of cards and conversationC:At first it may be hard for you to go to sleep without taking a pillD:The next night you will be ready to sleep at an earlier hourE:Having difficulty sleeping is a common problem shared by many people F: The pill is still working in your system when you get up in the morning
Text 1 It is a familiar ritual for many:after a late night out you reach for your smartphone to hail an Uber home.only to find-disaster-that the fare will be three times the normal rate.Like many things beloved by economists,"surge pricing"of the sort that occasionally afflicts Uber-users is both efficient and deeply unpopular.From a consumer's perspective,surge pricing is annoying at best and downright offensive when applied during emergencies.Extreme fare surges often lead to outpourings of public criticism:when a snowstorm paralysed New York in 2013,celebrities,including Salman Rushdie,took to social media to rail against triple-digit fares for relatively short rides.Some city governments have banned the practice altogether:Delhi's did so in April.Surge（or dynamic）pricing relies on frequent price adjustments to match supply and demand.Such systems are sometimes used to set motorway tolls（which rise and fall with demand in an effort to keep traffic flowing）,or to adjust the price of energy in electricity markets.A lower-tech version is common after natural disasters,when shopkeepers raise the price of necessities like bottled water and batteries as supplies run low.People understandably detest such practices.It offends the sensibilities of non-economists that the same journey should cost different amounts from one day or hour to the next-and more,invariably,when the need is most desperate.Yet surge fares also demonstrate the elegance with which prices moderate a marketplace.When demand in an area spikes and the waiting time for a car rises,surge pricing kicks in;users requesting carsare informed that the fare will be a multiple of the normal rate.As the multiple rises,the market goes to work.Higher fares ration available cars by willingness to pay:to richer users,in some cases,but also to those less able to wait out the surge period or with fewer good altematives.Charging extra to those without good alternatives sounds like gouging,yet without surge pricing such riders would be less likely to get a ride at all.since there would be no incentive for all the other people requesting cars to drop out.Surge pricing also boosts supply,at least locally,The extra money is shared with drivers,who therefore have an incentive to l:ravel to areas with high demand to help relieve the crush.Whether Uber remains a big part of the transport network in future,and whether it retains surge pricing,depends in part on how well local govemments manage the transport system as a whole.In other words,surge pricing is really only as painful as local officials allow it to be.21.It can be inferred from Paragraph l that Uber's pricing strategyA.works efficiently in the market.B.has fluctuated in the late night.C.is criticised by both consumers and economists.D.will cause catastrophe during emergencies.
Text 1 It is a familiar ritual for many:after a late night out you reach for your smartphone to hail an Uber home.only to find-disaster-that the fare will be three times the normal rate.Like many things beloved by economists,"surge pricing"of the sort that occasionally afflicts Uber-users is both efficient and deeply unpopular.From a consumer's perspective,surge pricing is annoying at best and downright offensive when applied during emergencies.Extreme fare surges often lead to outpourings of public criticism:when a snowstorm paralysed New York in 2013,celebrities,including Salman Rushdie,took to social media to rail against triple-digit fares for relatively short rides.Some city governments have banned the practice altogether:Delhi's did so in April.Surge（or dynamic）pricing relies on frequent price adjustments to match supply and demand.Such systems are sometimes used to set motorway tolls（which rise and fall with demand in an effort to keep traffic flowing）,or to adjust the price of energy in electricity markets.A lower-tech version is common after natural disasters,when shopkeepers raise the price of necessities like bottled water and batteries as supplies run low.People understandably detest such practices.It offends the sensibilities of non-economists that the same journey should cost different amounts from one day or hour to the next-and more,invariably,when the need is most desperate.Yet surge fares also demonstrate the elegance with which prices moderate a marketplace.When demand in an area spikes and the waiting time for a car rises,surge pricing kicks in;users requesting carsare informed that the fare will be a multiple of the normal rate.As the multiple rises,the market goes to work.Higher fares ration available cars by willingness to pay:to richer users,in some cases,but also to those less able to wait out the surge period or with fewer good altematives.Charging extra to those without good alternatives sounds like gouging,yet without surge pricing such riders would be less likely to get a ride at all.since there would be no incentive for all the other people requesting cars to drop out.Surge pricing also boosts supply,at least locally,The extra money is shared with drivers,who therefore have an incentive to l:ravel to areas with high demand to help relieve the crush.Whether Uber remains a big part of the transport network in future,and whether it retains surge pricing,depends in part on how well local govemments manage the transport system as a whole.In other words,surge pricing is really only as painful as local officials allow it to be.23.The word"detest"（Para.2）is closest in meaning toA.protest.B.resent.C.oppose.D.exclude.
Text 1 It is a familiar ritual for many:after a late night out you reach for your smartphone to hail an Uber home.only to find-disaster-that the fare will be three times the normal rate.Like many things beloved by economists,"surge pricing"of the sort that occasionally afflicts Uber-users is both efficient and deeply unpopular.From a consumer's perspective,surge pricing is annoying at best and downright offensive when applied during emergencies.Extreme fare surges often lead to outpourings of public criticism:when a snowstorm paralysed New York in 2013,celebrities,including Salman Rushdie,took to social media to rail against triple-digit fares for relatively short rides.Some city governments have banned the practice altogether:Delhi's did so in April.Surge（or dynamic）pricing relies on frequent price adjustments to match supply and demand.Such systems are sometimes used to set motorway tolls（which rise and fall with demand in an effort to keep traffic flowing）,or to adjust the price of energy in electricity markets.A lower-tech version is common after natural disasters,when shopkeepers raise the price of necessities like bottled water and batteries as supplies run low.People understandably detest such practices.It offends the sensibilities of non-economists that the same journey should cost different amounts from one day or hour to the next-and more,invariably,when the need is most desperate.Yet surge fares also demonstrate the elegance with which prices moderate a marketplace.When demand in an area spikes and the waiting time for a car rises,surge pricing kicks in;users requesting carsare informed that the fare will be a multiple of the normal rate.As the multiple rises,the market goes to work.Higher fares ration available cars by willingness to pay:to richer users,in some cases,but also to those less able to wait out the surge period or with fewer good altematives.Charging extra to those without good alternatives sounds like gouging,yet without surge pricing such riders would be less likely to get a ride at all.since there would be no incentive for all the other people requesting cars to drop out.Surge pricing also boosts supply,at least locally,The extra money is shared with drivers,who therefore have an incentive to l:ravel to areas with high demand to help relieve the crush.Whether Uber remains a big part of the transport network in future,and whether it retains surge pricing,depends in part on how well local govemments manage the transport system as a whole.In other words,surge pricing is really only as painful as local officials allow it to be.25.The author's attitude towards the future of Uber isA.supportive.B.critical.C.indifferent.D.subjective.
Text 1 It is a familiar ritual for many:after a late night out you reach for your smartphone to hail an Uber home.only to find-disaster-that the fare will be three times the normal rate.Like many things beloved by economists,"surge pricing"of the sort that occasionally afflicts Uber-users is both efficient and deeply unpopular.From a consumer's perspective,surge pricing is annoying at best and downright offensive when applied during emergencies.Extreme fare surges often lead to outpourings of public criticism:when a snowstorm paralysed New York in 2013,celebrities,including Salman Rushdie,took to social media to rail against triple-digit fares for relatively short rides.Some city governments have banned the practice altogether:Delhi's did so in April.Surge（or dynamic）pricing relies on frequent price adjustments to match supply and demand.Such systems are sometimes used to set motorway tolls（which rise and fall with demand in an effort to keep traffic flowing）,or to adjust the price of energy in electricity markets.A lower-tech version is common after natural disasters,when shopkeepers raise the price of necessities like bottled water and batteries as supplies run low.People understandably detest such practices.It offends the sensibilities of non-economists that the same journey should cost different amounts from one day or hour to the next-and more,invariably,when the need is most desperate.Yet surge fares also demonstrate the elegance with which prices moderate a marketplace.When demand in an area spikes and the waiting time for a car rises,surge pricing kicks in;users requesting carsare informed that the fare will be a multiple of the normal rate.As the multiple rises,the market goes to work.Higher fares ration available cars by willingness to pay:to richer users,in some cases,but also to those less able to wait out the surge period or with fewer good altematives.Charging extra to those without good alternatives sounds like gouging,yet without surge pricing such riders would be less likely to get a ride at all.since there would be no incentive for all the other people requesting cars to drop out.Surge pricing also boosts supply,at least locally,The extra money is shared with drivers,who therefore have an incentive to l:ravel to areas with high demand to help relieve the crush.Whether Uber remains a big part of the transport network in future,and whether it retains surge pricing,depends in part on how well local govemments manage the transport system as a whole.In other words,surge pricing is really only as painful as local officials allow it to be.22.We can learn from the text that dynamic pricing will lead toA.a fall ofprice in electricity market.B.excessive charge ofmoney on motorway tolls.C.a balance between supply and demand.D.a rise ofprices on low-tech necessities.
Learn from Mistakes You can only learn from a mistake after you （1） you’ve made it. As soon as you start blaming other people (or the universe itself) you distance yourself （2）any possible lesson. But if you courageously stand up and honestly say “This is my mistake and I am responsible” the possibilities for learning will move towards you. Admission of a mistake, even if only privately to yourself, makes learning （3）by moving the focus away from blame assignment and towards understanding. This advice （4）counter to the cultural assumptions we have about mistakes and failure, namely that they are （5） things. We’re taught in school, in our families, or at work to feel guilty about failure and to do whatever we can to （6）mistakes. This sense of shame explains why many people give up on their goals: they’re not （7） for the mistakes and failures What’s missing in many people’s beliefs about success is the fact that the more （8）the goal, the more frequent and difficult setbacks will be. The larger your ambitions, the more dependent you will be on your ability to overcome and learn from your mistakes. But for many reasons admitting mistakes is difficult. An implied value in many cultures is that our work represents us: if you fail a test, then you are a （9）. If you make a mistake then you are a mistake. Learning from mistakes requires three things: putting yourself in situations where you can make interesting mistakes; having the self-confidence to admit to them; being （10）about making changes.（1）内应选（）A、runsB、accessC、challengingD、shamefulE、courageousF、possibleG、admitH、failureI、avoidJ、preparedK、activitiesL、from
What are two reasons to create synonyms?（）A、You have too many tables.B、Your tables are too long.C、Your tables have difficult names.D、You want to work on your own tables.E、You want to use another schema's tables.F、You have too many columns in your tables.
单选题After so many days without rain, the ground quickly（）the little rain that fell last night.AdroppedBfloodedCgraspedDabsorbed
单选题Which of the following is the best version of the underlined portion of sentence 7 (reproduced below)?He went on interviews and sent out many resumes, but all he got was rejected even with years of prior experience.A(as it is now)Band was sending out many resumes however all he was getting was rejectionCand sent out many resumes, but all he received was rejectionDand sending out many resumes, however he got rejected onlyEand, after many resumes having been sent, rejection was his only result
单选题-How many boy students are there in your class? -There are ______ girls as boys .Athree times many asBmany as three timesCas many three timesDthree times as many
单选题请阅读Passage l，完成第21-25小题。 Passage 1 Self-driving vehicles threaten to send truck drivers to the unemployment office． Computer programs can now write journalistic accounts of sporting events and stock price movements． There are even computers that can grade essay exams with reasonable accuracy, which could revolutionize my own job． Increasingly, machines are providing not only the brawn but the brains, too． And that raises the question of where humans fit into this picture--who will prosper and who won´t in this new kind of machine economy? Within five years we are likely to have the world´s best education, or close to it, online and free． But not everyone will sit down and go through the material without a professor pushing them to do the work． Your Smartphone will record data on your life and, when asked, will tell you what to do,drawing on data from your home or from your spouse and friends if need be． You´ ve thrown out that bread the last three times you´ve bought it, give it a pass will be a text message of the future． How aboutNow is not the time to start another argument with your wife? The GPS is just the beginning of computer-guided instruction． Take your Smartphone on a date, and it might vibrate in your pocket to indicate Kiss her now． If you hesitate for fear of being seen as pushy, it may write: Who cares if you look bad? You are sampling optimally in the quest for a lifetime companion． A lot of jobs will consist of making people feel either very good or very bad about themselves． Coaches, mentors and disciplinarians will spread to many areas of life, at least for those of us who can stand to listen to them． These people will cajole us, flatter us and shame us into improving our lives, our work habits and our consumption． Computing and software will make it easier to measure performance and productivity． It will be harder to gloss over our failings and maintain self-deception． In essence everyone will suffer the fate of professional chess players, who will always know when they have lost a game, have an exact numerical rating for their overall performance, and find excuses for failure hard to come by． Individuals will have many measures of their proficiency． They will have an incentive to disclose that information to get the better job or social opportunity． You´ll assume the worst about those who keep secrets, and so openness will reign． Many of us will start to hate the idea of Big Data．Which of the following is closest in meaning to the underlined wordbrawn in Paragraph 1?AJob．BMeat．CPhysical strength．DMental agility．
单选题How many times have I told you（）football on the street?Ado not playBnot to have playedCnot to playDnot your playing
单选题Learn from Mistakes You can only learn from a mistake after you （1） you’ve made it. As soon as you start blaming other people (or the universe itself) you distance yourself （2）any possible lesson. But if you courageously stand up and honestly say “This is my mistake and I am responsible” the possibilities for learning will move towards you. Admission of a mistake, even if only privately to yourself, makes learning （3）by moving the focus away from blame assignment and towards understanding. This advice （4）counter to the cultural assumptions we have about mistakes and failure, namely that they are （5） things. We’re taught in school, in our families, or at work to feel guilty about failure and to do whatever we can to （6）mistakes. This sense of shame explains why many people give up on their goals: they’re not （7） for the mistakes and failures What’s missing in many people’s beliefs about success is the fact that the more （8）the goal, the more frequent and difficult setbacks will be. The larger your ambitions, the more dependent you will be on your ability to overcome and learn from your mistakes. But for many reasons admitting mistakes is difficult. An implied value in many cultures is that our work represents us: if you fail a test, then you are a （9）. If you make a mistake then you are a mistake. Learning from mistakes requires three things: putting yourself in situations where you can make interesting mistakes; having the self-confidence to admit to them; being （10）about making changes.（7）内应选（）ArunsBaccessCchallengingDshamefulEcourageousFpossibleGadmitHfailureIavoidJpreparedKactivitiesLfrom
单选题If you _____ that night, you might have been too late to get your ticket.Adidn't hurryBhadn't hurriedCwouldn't hurryDhadn't to hurry