网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
In June 1956 a TWA Constellation collided with a United Air Lines DC-7 over the Grand Canyon in Arizona,killing all 128 people on both aircraft.At the time it was the worst ever airline disaster Struggling with outdated technology and a post-war boom in air travel overworked air-traffic controllers failed to spot that the planes were on a collision course.（1）With that system again struggling to keep pace with demand,Donald Trump thinks it is time to privatise Americas air-traffic control service.This week the president out-lined a plan to turn air-traffic control into a separate non-profit entity financed by user fees,instead of the present patchwork of taxes and grants.Shorn of its air-traffic responsibility,the FAA would become a satety body America's air-traffic system is vast,consising of 14,000 controllers working in 476 airport-control towers that handle take-offs and landings,as well as in 21"en route"centres looking after flights along the nation's airways.（2）This leads to delays and frustrated flyers.With passenger numbers set to grow from 800m a year to almost Ibn by 2026,the problem will only get worse（3）Many countries,including Australia,Britain and Canada,have privatised air-traffic services or turned them into state-owned firms.Nav Canada,a non-profit firm that has long managed Canadian airspace,has costs per flight hour of 340 compared with the FAA's$450.Replacing old radar-based methods with accurate satellite navigation and better digital communications is a particular priority.Aircraft using satellite navigation can be safely spaced more closely together,which permits many more planes to be in the air at the same time.Digital systems also provide data links to control centres and to other planes by regularly broadcasting an aircraft's identification sign,its position and course.（4）The president's proposal might even speed a move towards"virtual"control towers in low-rise buildings,which can replace towers physically localed at airports.The European Union reckons such innovations will allow three times as many flights to be handled in the region and save airlines some 9bn（$10bn）a year.It also,optimistically perhaps,predicts that on average aircraft will land with in one minute of their scheduled arrival time.That would count as a miraculous improvement for any one,let alone America's weary airport warriors（5）A similar plan got stuck last year,despite being backed by most airlines and the air-traffic controllers'union.At least the president can dodge the queues Air Force One flights get special clearance
4选？
4选？
A.In addition to providing air traffic services,the FAA also provides safety oversight for those services,which may create an inherent conflict of interest
B.It has a good safety record,but elderly technology limits the number of flights that can be haned
C.Many Democrats argue that changing the status quo is unnecessary given that flying in the United States is as safe as it's ever been
D.Mr Trump believes that,no longer mired in a federal bureaucracy the air-traffic service will become more efficient and better able to invest in technology
E.This would allow"free routing",which means pilots can fly diretly to a destination,rather than fllow established aiways,which often zigzag around.
F.Mr Tump.though,may struggle to get the proposal through Congress.
G.That crash led to the creation of a new body,which became the Federal Aviation Administration（FAA）,in charge of running and modermising the world's biggest air-transport system.
B.It has a good safety record,but elderly technology limits the number of flights that can be haned
C.Many Democrats argue that changing the status quo is unnecessary given that flying in the United States is as safe as it's ever been
D.Mr Trump believes that,no longer mired in a federal bureaucracy the air-traffic service will become more efficient and better able to invest in technology
E.This would allow"free routing",which means pilots can fly diretly to a destination,rather than fllow established aiways,which often zigzag around.
F.Mr Tump.though,may struggle to get the proposal through Congress.
G.That crash led to the creation of a new body,which became the Federal Aviation Administration（FAA）,in charge of running and modermising the world's biggest air-transport system.
参考答案
参考解析
解析：本段指出空管改革的主要任务是以精确的卫星导航和数字通讯替代依赖雷达的老式系统。数字系统可向控制中心及其他飞机传输数据,定时发布飞机的识别标志、位置及航道。由此可知,空白内容应继续阐述数字系统的优势。[E]内容为这使得飞行员可以“自由选择路线”,即直接飞往目的地,而不必遵循以往那些曲折迂回的既定航道,本句开头的Ths指代上文的数字系统,上下文衔接自然,成因果关系,故为答案
更多 “In June 1956 a TWA Constellation collided with a United Air Lines DC-7 over the Grand Canyon in Arizona,killing all 128 people on both aircraft.At the time it was the worst ever airline disaster Struggling with outdated technology and a post-war boom in air travel overworked air-traffic controllers failed to spot that the planes were on a collision course.（1）With that system again struggling to keep pace with demand,Donald Trump thinks it is time to privatise Americas air-traffic control service.This week the president out-lined a plan to turn air-traffic control into a separate non-profit entity financed by user fees,instead of the present patchwork of taxes and grants.Shorn of its air-traffic responsibility,the FAA would become a satety body America's air-traffic system is vast,consising of 14,000 controllers working in 476 airport-control towers that handle take-offs and landings,as well as in 21"en route"centres looking after flights along the nation's airways.（2）This leads to delays and frustrated flyers.With passenger numbers set to grow from 800m a year to almost Ibn by 2026,the problem will only get worse（3）Many countries,including Australia,Britain and Canada,have privatised air-traffic services or turned them into state-owned firms.Nav Canada,a non-profit firm that has long managed Canadian airspace,has costs per flight hour of 340 compared with the FAA's$450.Replacing old radar-based methods with accurate satellite navigation and better digital communications is a particular priority.Aircraft using satellite navigation can be safely spaced more closely together,which permits many more planes to be in the air at the same time.Digital systems also provide data links to control centres and to other planes by regularly broadcasting an aircraft's identification sign,its position and course.（4）The president's proposal might even speed a move towards"virtual"control towers in low-rise buildings,which can replace towers physically localed at airports.The European Union reckons such innovations will allow three times as many flights to be handled in the region and save airlines some 9bn（$10bn）a year.It also,optimistically perhaps,predicts that on average aircraft will land with in one minute of their scheduled arrival time.That would count as a miraculous improvement for any one,let alone America's weary airport warriors（5）A similar plan got stuck last year,despite being backed by most airlines and the air-traffic controllers'union.At least the president can dodge the queues Air Force One flights get special clearance 4选？A.In addition to providing air traffic services,the FAA also provides safety oversight for those services,which may create an inherent conflict of interest B.It has a good safety record,but elderly technology limits the number of flights that can be haned C.Many Democrats argue that changing the status quo is unnecessary given that flying in the United States is as safe as it's ever been D.Mr Trump believes that,no longer mired in a federal bureaucracy the air-traffic service will become more efficient and better able to invest in technology E.This would allow"free routing",which means pilots can fly diretly to a destination,rather than fllow established aiways,which often zigzag around. F.Mr Tump.though,may struggle to get the proposal through Congress. G.That crash led to the creation of a new body,which became the Federal Aviation Administration（FAA）,in charge of running and modermising the world's biggest air-transport system.” 相关考题
考题
The Grand Canyon National Park, one of America’s most famous scenic wonder, is approximately 120 kilometers north of Flagstaff, Utah.()
此题为判断题(对，错)。
考题
People travel a lot with Heaven Air because they know they will get what they want. They want to go quickly and safely across the land, across the sea or right across the world, and they know Heaven Air will take them where they want to go whenever they want to go. Heaven Air flies all the newest and fastest planes to more towns and cities of the world than any other airlines. Do you want to go to Paris, Washington, Tokyo? Heaven Air will take you there, at all times of the day or night, right through the week. But Heaven Air flies not only to the Biggest cities, we also fly two or three times a week to towns and cities in the very center of Asia, Africa and South America. People fly with Heaven Air because they know they will leave on time and arrive on time. They know that they will receive the best food and watch the best films. Heaven Air is second to none.1). Heaven Air is the name of ().2). Travelling with Heaven Air is ().3). Heaven Air can take you to Paris ().4). Most flights of Heaven Air go to ().5). According to the advertisement, Heaven Air believes it is ().(1).A、a planeB、an airlineC、a travel serviceD、an advertising program(2).A、comfortable but expensiveB、cheap and pleasantC、exciting but tiringD、quick and safe(3).A、on weekends onlyB、just on weekdaysC、any time in a weekD、two or three times a week(4).A、big citiesB、small townsC、both big and small citiesD、the very center of Asia(5).A、the second biggest in the worldB、the second best in the worldC、the biggest in the worldD、the best in the world
考题
We work closely()every large airline like Air China, Air France and American Airlines.
A、inB、toC、with
考题
Passage FourIf you are like most people, your intelligence varies from season to season. You are probably a lot sharper in the spring than you are at any other time of year. A noted scientist, Ells- worth Huntington (1876-1947) concluded from other men's work and his own among peoples in different climates that climate and: temperature have a definite effect on our mental abilities.He found that cool weather is much more favorable for creative thinking than summer heat is. This does not mean that all people are less intelligent in the summer than they are during the rest of the year. It does mean, however, that mental, abilities of large numbers of people tend to be lowest in the summer.Spring appears to be the best period of the year for thinking. One reason may be that in the spring man's mental abilities are affected by the same factors that bring about great changes in all nature.Fall is the next best season, then winter. As for summer, it seems to be a good time to take a long vacation from thinking!46. According to the passage, your mental ability ______.A. depends on your attitude towards people in different time of the yearB. changes for the worst when you dislike most people in hot seasonC. will be best in winter and worst in summer if you want to be creativeD. turns to be more powerful in spring than in any of the other seasons
考题
Time was when biologists somewhat over worded the evidence that these creatures preserve the health of game by killing the physically weak,or that they prey only on “worthless species。
考题
Smoking is so harmful to personal health that it killing ( ) people each year than automobile accidents.A、seven more timesB、seven times moreC、over seven timesD、seven times
考题
Have you ever stopped to think why many people are complaining about all the pressure in life? (翻译)
考题
She gave all her properties to a charity organization which _______ her great respect from people all over the world.A、earnedB、savedC、developedD、led
考题
A small plane crashed into a hillside five miles east of the city, _____ all four people on board.A. killed B. killing C. kills D. to kill
考题
If two mooring lines are to be placed on the same bollard，which method is BEST?______.A.Place the eye from the forward line on the bollard and then place the eye from the second line directly over the firstB.It makes no difference how the lines are placedC.Place the eye from either line on the bollard，and then bring the eye of the other line up through the eye of the first，and place it on the bollardD.Place both eyes on the bollard，in any manner，but lead both lines to the same winch head on the vessel and secure them on the winch
考题
First two hours,now three hours—this is how far in advance authorities are recommending people show up to catch a domestic flight,at least at some major U.S.airports with increasingly massive security lines.Americans are willing to tolerate time-consuming security protocols in return for increased safety.The crash of Egypt Air Flight 804,which terrorists may have downed over the Mediterranean Sea,provides another tragic reminder of why.But demanding too much of air travelers or providing too little security in return undermines public support for the process.And it should:Wasted time is a drag on Americans'economic and private lives,not to mention infuriating.Last year,the Transportation Security Administration（TSA）found in a secret check that undercover investigators were able to sneak weapons—both fake and real—past airport security nearly every time they trieD.Enhanced security measures since then,combined with a rise in airline travel due to the improving economy and low oil prices,have resulted in long waits at major airports such as Chicago's O'Hare International.It is not yet clear how much more effective airline security has become—but the lines are obvious.Part of the issue is that the government did not anticipate the steep increase in airline travel,so the TSA is now rushing to get new screeners on the line.Part of the issue is that airports have only so much room for screening lanes.Another factor may be that more people are trying to overpack their carry-on bags to avoid checked-baggage fees,though the airlines strongly dispute this.There is one step the TSA could take that would not require remodeling airports or rushing to hire:Enroll more people in the PreCheck program.PreCheck is supposed to be a win-win for travelers and the TSA.Passengers who pass a background check are eligible to use expedited screening lanes.This allows the TSA to focus on travelers who are higher risk,saving time for everyone involveD.TSA wants to enroll 25 million people in PreCheck.It has not gotten anywhere close to that,and one big reason is sticker shock:Passengers must pay$85 every five years to process their background checks.Since the beginning,this price tag has been PreCheck's fatal flaw.Upcoming reforms might bring the price to a more reasonable level.But Congress should look into doing so directly,by helping to finance PreCheck enrollment or to cut costs in other ways.The TSA cannot continue diverting resources into underused PreCheck lanes while most of the traveling public suffers in unnecessary lines.It is long past time to make the program work.
The word“expedited”（Liner 4,ParA.5）is closet in meaning to____A.quieter.
B.cheaper.
C.wider.
D.faster.
考题
First two hours,now three hours—this is how far in advance authorities are recommending people show up to catch a domestic flight,at least at some major U.S.airports with increasingly massive security lines.Americans are willing to tolerate time-consuming security protocols in return for increased safety.The crash of Egypt Air Flight 804,which terrorists may have downed over the Mediterranean Sea,provides another tragic reminder of why.But demanding too much of air travelers or providing too little security in return undermines public support for the process.And it should:Wasted time is a drag on Americans'economic and private lives,not to mention infuriating.Last year,the Transportation Security Administration（TSA）found in a secret check that undercover investigators were able to sneak weapons—both fake and real—past airport security nearly every time they trieD.Enhanced security measures since then,combined with a rise in airline travel due to the improving economy and low oil prices,have resulted in long waits at major airports such as Chicago's O'Hare International.It is not yet clear how much more effective airline security has become—but the lines are obvious.Part of the issue is that the government did not anticipate the steep increase in airline travel,so the TSA is now rushing to get new screeners on the line.Part of the issue is that airports have only so much room for screening lanes.Another factor may be that more people are trying to overpack their carry-on bags to avoid checked-baggage fees,though the airlines strongly dispute this.There is one step the TSA could take that would not require remodeling airports or rushing to hire:Enroll more people in the PreCheck program.PreCheck is supposed to be a win-win for travelers and the TSA.Passengers who pass a background check are eligible to use expedited screening lanes.This allows the TSA to focus on travelers who are higher risk,saving time for everyone involveD.TSA wants to enroll 25 million people in PreCheck.It has not gotten anywhere close to that,and one big reason is sticker shock:Passengers must pay$85 every five years to process their background checks.Since the beginning,this price tag has been PreCheck's fatal flaw.Upcoming reforms might bring the price to a more reasonable level.But Congress should look into doing so directly,by helping to finance PreCheck enrollment or to cut costs in other ways.The TSA cannot continue diverting resources into underused PreCheck lanes while most of the traveling public suffers in unnecessary lines.It is long past time to make the program work.
The crash of Egypt Air Flight 804 is mentioned to____A.explain American’s tolerance of current security checks.
B.stress the urgency to strengthen security worldwide.
C.highlight the necessity of upgrading major U.S.airports.
D.emphasize the importance of privacy protection.
考题
Why did the African nations welcome an ivory ban?___________A.The rate of killing has been accelerating
B.The US government forbids imports of both raw and finished ivory
C.They realized that the killing of elephants is a serious threat to their tourist business
D.African people advocated an ivory ban
考题
People all over the country have made the greatest possible endeavor to help the people in the flood-stricken area.A: debut
B:experiment
C:miracle
D:effort
考题
共用题干
第三篇The Exploding Lakes of CameroonWhat comes to mind when you think of a lake?You probably imagine a pretty scene with blue water,birds,and fish.For the people in the northwestern Cameroon,however,the image is very different.For them,lakes may mean terrible disasters.In 1984, poisonous gases exploded out of Lake Monoun and came down into the nearby villages, killing thirty-seven people.Two years later,Lake Nyos erupted.A cloud of gases rolled down the hills and into the valleys and killed 1,700 people.Lake Nyos and Lake Monoun are crater（火山口）lakes. They were formed when water collected in the craters of old volcanoes.The volcanoes under Lake Nyos and Lake Monoun are not active anymore.However,poisonous gases from the center of the earth continue to flow up through cracks in the bottom of the lake.This is normal in a crater lake. In most crater lakes,these gases are released often because the water"turns over" regularly.That is,the water from the bottom of the lake rises and mixes with the water at the top,allowing the gases to escape slowly.However,in Lakes Nyos and Monoun,there is no regular turning over.No one knows the reason for this fact,but as a result,these lakes have more gases trapped at the bottomthan other crater lakes.In fact,scientists who have studied Lakes Nyos and Monoun have found 16,000 times more gases.When a strong wind,cool weather,a storm,or a landslide（滑坡）causes the water to turn over suddenly,the gases escape in a violent explosion.In the past,no one knew when the gases might explode,so there was no way for the villagers to escape disaster. Now scientists from the United States,France,andCameroon have found a way to reduce the gas pressure at the bottom of Lake Nyos.Theystood a 672-foot plastic pipe in the middle of the lake,with one end of the pipe near the bottom and the other end in the air. Near the top of the pipe,the team put several holesthat could be opened or closed by a computer.Now,when the gas pressure gets too high,the holes are opened and some of the gas-filled water shoots up through the pipe into the air like a fountain.With less pressure,a disastrous explosion is much less likely.However,the scientists are not sure that one pipe will be enough to prevent explosions.They hope to put in others soon and they plan to install a similar pipe and a computer system at Lake Monoun as well.To protect people nearby until all of the pipes are in place,the scientists have installed early warning systems at both lakes.If the gas pressure rises to a dangerous level, computers will set off loud sirens（警报）and bright lights to warn the people in the villages. That way,they will have time to escape from the dangerous gases.Lake Nyos and Lake Monoun explode becauseA:the gases rise to the top and mix with air.B:people from the villages turn over the water.C:scientists have put in a computer system.D:they have more gases trapped at the bottom than other crater lakes.
考题
MUN, which ___ Model United Nations, is a conference that provides students all over the world with the opportunity to experience what it’s like to be in the United Nations.A.stand by
B.stands for
C.stand up
D.stand out
考题
单选题Passage1When it comes to airline travel, perhaps nothing has revolutionized the passenger experience more than airline apps. Indeed, they' re becoming so ubiquitous that more than 50 percent of U.S travelers have at least one airline app installed on their smart device, according to travel industry research firm Phocuswright.Maybe that's because apps make travel easier, and often are more functional than a kiosk or even an airline's own website. Passengers report that they' re often more quickly informed of a flight cancellation or gate change than an airline employee. Not all airline apps are created equal, but in general you can use an app to check in for a flight, change seats, and request and pay for an upgrade. Road warriors in particular appreciate mobile boarding passes and the ability to track their flights. Many airlines now offer free onboard streaming entertainment via apps. The Delta Air Lines app even allows users to track their bags, from check-in to carousel, while the Air France app lets passengers download magazines and newspapers from the airline's library 30 hours prior to departure.But what if you are traveling extensively on more than one airline? Global airline alliances have their own apps that allow you to view flights for all member airlines and their affiliates, including code share flights. In general, you can find flight schedules for all member airlines and track member airline flights. Airport information is available, as are details about local weather at the destination. Where's the nearest airport lounge? The app will locate it for you.The Sky Team airline alliance app goes a step further by letting its SkyPriority members (Sky Team Elite Plus members and customers with first and business-class tickets) find out exactly which SkyPriority services-including priority check in and baggage drop off, as well as access to priority security lanes and boarding lanes-are available at individual airports.You' ll find that some alliance app features are available through multiple channels of communication. For example, Sky Team members have formed their own online community by sharing traveler tricks and airport tips accessible through a variety of channels, including the app, Sky Team's website, Facebook page and a dedicated tips site. Sky Team's YouTube page features travel tips from regional celebrities.Just as airlines seem to have conquered social media, another method of communicating with travelers has just arrived. KLM Royal Dutch Airlines is the first carrier to sign up for Facebook's Messenger chat app. KLM flyers can automatically receive itineraries, flight updates, check-in notifications, boarding passes and rebook flights and communicate with customer service, all from Facebook Messenger. Messenger for Business was launched so that customers-in this case, passengers-can transact business over the messaging app in a single communication thread. Roughly 80 percent of passengers on planes traveling within the U.S. have the Messenger app installed on their smartphones, according to Facebook.Clearly, mobile apps and social media have transformed our digital lives. Airlines favor apps and other technologies because they get customers out of airport lines and off phone lines. Through their smart devices, travelers now have untethered access to travel information. A few quick taps can supply individuals with information never dreamed possible even a decade ago. And with more people using smartphones as their primary computing device, and as more people own cellphones globally, people expect technology-driven methods of communication and convenience to accelerate. Whether you' re high-tech or not, you must admit that having immediate access to the information you need sure beats getting a busy signal on a toll-free phone line.According to this passage, which of the following apps provides priority services information for priority members?A
The Sky Team airline alliance app.B
KLM Royal Dutch Airlines app.C
Global airline aliance app.D
The Delta Air Lines app.
考题
单选题Passage1When it comes to airline travel, perhaps nothing has revolutionized the passenger experience more than airline apps. Indeed, they' re becoming so ubiquitous that more than 50 percent of U.S travelers have at least one airline app installed on their smart device, according to travel industry research firm Phocuswright.Maybe that's because apps make travel easier, and often are more functional than a kiosk or even an airline's own website. Passengers report that they' re often more quickly informed of a flight cancellation or gate change than an airline employee. Not all airline apps are created equal, but in general you can use an app to check in for a flight, change seats, and request and pay for an upgrade. Road warriors in particular appreciate mobile boarding passes and the ability to track their flights. Many airlines now offer free onboard streaming entertainment via apps. The Delta Air Lines app even allows users to track their bags, from check-in to carousel, while the Air France app lets passengers download magazines and newspapers from the airline's library 30 hours prior to departure.But what if you are traveling extensively on more than one airline? Global airline alliances have their own apps that allow you to view flights for all member airlines and their affiliates, including code share flights. In general, you can find flight schedules for all member airlines and track member airline flights. Airport information is available, as are details about local weather at the destination. Where's the nearest airport lounge? The app will locate it for you.The Sky Team airline alliance app goes a step further by letting its SkyPriority members (Sky Team Elite Plus members and customers with first and business-class tickets) find out exactly which SkyPriority services-including priority check in and baggage drop off, as well as access to priority security lanes and boarding lanes-are available at individual airports.You' ll find that some alliance app features are available through multiple channels of communication. For example, Sky Team members have formed their own online community by sharing traveler tricks and airport tips accessible through a variety of channels, including the app, Sky Team's website, Facebook page and a dedicated tips site. Sky Team's YouTube page features travel tips from regional celebrities.Just as airlines seem to have conquered social media, another method of communicating with travelers has just arrived. KLM Royal Dutch Airlines is the first carrier to sign up for Facebook's Messenger chat app. KLM flyers can automatically receive itineraries, flight updates, check-in notifications, boarding passes and rebook flights and communicate with customer service, all from Facebook Messenger. Messenger for Business was launched so that customers-in this case, passengers-can transact business over the messaging app in a single communication thread. Roughly 80 percent of passengers on planes traveling within the U.S. have the Messenger app installed on their smartphones, according to Facebook.Clearly, mobile apps and social media have transformed our digital lives. Airlines favor apps and other technologies because they get customers out of airport lines and off phone lines. Through their smart devices, travelers now have untethered access to travel information. A few quick taps can supply individuals with information never dreamed possible even a decade ago. And with more people using smartphones as their primary computing device, and as more people own cellphones globally, people expect technology-driven methods of communication and convenience to accelerate. Whether you' re high-tech or not, you must admit that having immediate access to the information you need sure beats getting a busy signal on a toll-free phone line.Which word below best describes the author's stance？A
Biased.B
Neutral.C
Critical.D
Radical.
考题
单选题Passage 1First two hours, now three hours-this is how far in advance authorities are recommending people show up to catch a domestic flight, at least at some major U.S. airports with increasingly massive security lines.Americans are willing to tolerate time-consuming security procedures in return for increased safety. The crash of EgyptAir Flight 804, which terrorists may have downed over the Mediterranean Sea, provides another tragic reminder of why. But demanding too much of air travelers or providing too little security in return undermines public support for the process. And it should: Wasted time is a drag on Americans' economic and private lives, not to mention infuriating.Last year, the Transportation Security Administration (TSA) found in a secret check that undercover investigators were able to sneak weapons-both fake and real-past airport security nearly every time they tried. Enhanced security measures since then, combined with a rise in airline travel due to the improving economy and low oil prices, have resulted in long waits at major airports such as Chicago's O' Hare International. It is not yet clear how much more effective airline security has become-but the lines are obvious.Part of the issue is that the government did not anticipate the steep increase in airline travel, so the TSA is now rushing to get new screeners on the line. Part of the issue is that airports have only so much room for screening lanes. Another factor may be that more people are trying to overpack their carry-on bags to avoid checked-baggage fees, though the airlines strongly dispute this.There is one step the TSA could take that would not require remodeling airports or rushing to hire: Enroll more people in the PreCheck program. PreCheck is supposed to be a win-win for travelers and the TSA. Passengers who pass a background check are eligible to use expedited screening lanes. This allows the TSA to focus on travelers who are higher risk, saving time for everyone involved. The TSA wants to enroll 25 million people in PreCheck.It has not gotten anywhere close to that, and one big reason is sticker shock: Passengers must pay S85 every five years to process their background checks. Since the beginning, this price tag has been PreCheck's fatal flaw. Upcoming reforms might bring the price to a more reasonable level. But Congress should look into doing so directly, by helping to finance PreCheck enrollment or to cut costs in other ways.The TSA cannot continue diverting resources into underused PreCheck lanes while most of the traveling public suffers in unnecessary lines. It is long past time to make the program work.One problem with the PreCheck program is________.A
a dramatic reduction of its scaleB
its wrongly-directed implementationC
the government's reluctance to back itD
an unreasonable price for enrollment
考题
单选题If two mooring lines are to be placed on the same bollard，which method is BEST?（）.A
Place the eye from the forward line on the bollard and then place the eye from the second line directly over the firstB
It makes no difference how the lines are placedC
Place the eye from either line on the bollard，and then bring the eye of the other line up through the eye of the first，and place it on the bollardD
Place both eyes on the bollard，in any manner，but lead both lines to the same winch head on the vessel and secure them on the winch
考题
问答题The Grand Canyon A famous American John Muir said in 1898：“The Grand Canyon…as unearthly in the color and grandeur(宏大)and quantity of its architecture as if you had found it after death on some other star. ” Like Muir, those of us who stand along the rim are prompted to wonder about the unearthliness and the forces that created and are still changing this place. After more than 100 years of studies, many things are still obscure. Today visitors come by the thousands—the great and simple of the earth — all in a spirit of marvel. Travelers come from every state of the Union, from every country in Europe and Asia, pilgrims(朝圣者)to a shrine(神殿)that is the same as the creed(信仰). From the depths of the canyon(峡谷)comes welling silence. Seldom can you hear the roar of the river. For all sounds are swallowed in this gulf of space. ‘It makes one want to murmur. A woman once whispered to her companion. This silence is not the silence of death；rather, it is a presence. It is like a great piece of music. But music made of man works up to a climax and ceases；the Grand Canyon is all climax, a chord(和音)echoing into eternity. Perhaps the most spectacular feature of the Grand Canyon, its Redwall limestone(石灰石) cliff, stands about half way up the chasm (裂口) and is practically vertical. Its average height is550 feet almost exactly that of the Washington Monument. Though it is actually gray-blue limestone, the surface of the cliff has been stained to a sunset hue by iron salts washing out of the rocks. Above the Redwall come alternating layers of red sandstone and shale(页岩)1, 000 feet thick, then comes the next pale-blue layer. The topmost layers are a yellowish limestone. Now, visitors to the South Rim alone may number 18, 000 in a single day. Some of that number will travel by mule(轻型牵引机)train down Bright Angel Trail to the canyon’s floor, cross the raging fiver by a suspension bridge and amount to the North Rim. Though the two rims face each other across only 12 miles, it is a journey of 214 miles by car from one to the other. Nor can you visit the North Rim except in summer；some 1, 200 feet higher than the South Rim, it is snow covered much of the year except in July and August. But there is no day that you may not visit the South Rim and find the sun warm on your face and the air perfumed with the incense of smoke from an Indian hearth. The Grand Canyon is an unearthly sight. No wonder an American writer and journalist said, “I came here an atheist(无神论者), and departed a devout (虔诚的) believer. ”
考题
问答题Practice 5The Grand Canyon A famous American John Muir said in 1898: “The Grand Canyon…as unearthly in the color and grandeur and quantity of its architecture as if you had found it after death on some other star.” Like Muir, those of us who stand along the rim are prompted to wonder about the unearthliness and the forces that created and are still changing this place. After more than 100 years of studies, many things are still obscure. Today visitors come by the thousands—the great and simple of the earth — all in a spirit of marvel. Travelers come from every state of the Union, from every country in Europe and Asia, pilgrims to a shrine that is the same as the creed. From the depths of the canyon comes welling silence. Seldom can you hear the roar of the river. For all sounds are swallowed in this gulf of space. ‘It makes one want to murmur. A woman once whispered to her companion. This silence is not the silence of death；rather, it is a presence. It is like a great piece of music. But music made of man works up to a climax and ceases；the Grand Canyon is all climax, a chord echoing into eternity. Perhaps the most spectacular feature of the Grand Canyon, its Redwall limestone cliff, stands about half way up the chasm and is practically vertical. Its average height is550 feet almost exactly that of the Washington Monument. Though it is actually gray-blue limestone, the surface of the cliff has been stained to a sunset hue by iron salts washing out of the rocks. Above the Redwall come alternating layers of red sandstone and shale(页岩)1, 000 feet thick, then comes the next pale-blue layer. The topmost layers are a yellowish limestone. Now, visitors to the South Rim alone may number 18, 000 in a single day. Some of that number will travel by mule(轻型牵引机)train down Bright Angel Trail to the canyon’s floor, cross the raging fiver by a suspension bridge and amount to the North Rim. Though the two rims face each other across only 12 miles, it is a journey of 214 miles by car from one to the other. Nor can you visit the North Rim except in summer；some 1, 200 feet higher than the South Rim, it is snow covered much of the year except in July and August. But there is no day that you may not visit the South Rim and find the sun warm on your face and the air perfumed with the incense of smoke from an Indian hearth. The Grand Canyon is an unearthly sight. No wonder an American writer and journalist said, “I came here an atheist, and departed a devout believer.”
考题
问答题Pretend that you are a tourist from time to time, and get to know your city all over again including the indispensable（不可错过的）sights that people travel miles to see.
考题
单选题（）so many people in the United States been out of work as today.A
More than ever beforeB
In the past, there have neverC
Never before haveD
Formerly, there never were
考题
单选题______the number in full-time employment fell by 2 million, the number of people inpart-time work doubled to over 4 million.A
UnlessB
UntilC
WhileD
Since
考题
单选题Passage1When it comes to airline travel, perhaps nothing has revolutionized the passenger experience more than airline apps. Indeed, they' re becoming so ubiquitous that more than 50 percent of U.S travelers have at least one airline app installed on their smart device, according to travel industry research firm Phocuswright.Maybe that's because apps make travel easier, and often are more functional than a kiosk or even an airline's own website. Passengers report that they' re often more quickly informed of a flight cancellation or gate change than an airline employee. Not all airline apps are created equal, but in general you can use an app to check in for a flight, change seats, and request and pay for an upgrade. Road warriors in particular appreciate mobile boarding passes and the ability to track their flights. Many airlines now offer free onboard streaming entertainment via apps. The Delta Air Lines app even allows users to track their bags, from check-in to carousel, while the Air France app lets passengers download magazines and newspapers from the airline's library 30 hours prior to departure.But what if you are traveling extensively on more than one airline? Global airline alliances have their own apps that allow you to view flights for all member airlines and their affiliates, including code share flights. In general, you can find flight schedules for all member airlines and track member airline flights. Airport information is available, as are details about local weather at the destination. Where's the nearest airport lounge? The app will locate it for you.The Sky Team airline alliance app goes a step further by letting its SkyPriority members (Sky Team Elite Plus members and customers with first and business-class tickets) find out exactly which SkyPriority services-including priority check in and baggage drop off, as well as access to priority security lanes and boarding lanes-are available at individual airports.You' ll find that some alliance app features are available through multiple channels of communication. For example, Sky Team members have formed their own online community by sharing traveler tricks and airport tips accessible through a variety of channels, including the app, Sky Team's website, Facebook page and a dedicated tips site. Sky Team's YouTube page features travel tips from regional celebrities.Just as airlines seem to have conquered social media, another method of communicating with travelers has just arrived. KLM Royal Dutch Airlines is the first carrier to sign up for Facebook's Messenger chat app. KLM flyers can automatically receive itineraries, flight updates, check-in notifications, boarding passes and rebook flights and communicate with customer service, all from Facebook Messenger. Messenger for Business was launched so that customers-in this case, passengers-can transact business over the messaging app in a single communication thread. Roughly 80 percent of passengers on planes traveling within the U.S. have the Messenger app installed on their smartphones, according to Facebook.Clearly, mobile apps and social media have transformed our digital lives. Airlines favor apps and other technologies because they get customers out of airport lines and off phone lines. Through their smart devices, travelers now have untethered access to travel information. A few quick taps can supply individuals with information never dreamed possible even a decade ago. And with more people using smartphones as their primary computing device, and as more people own cellphones globally, people expect technology-driven methods of communication and convenience to accelerate. Whether you' re high-tech or not, you must admit that having immediate access to the information you need sure beats getting a busy signal on a toll-free phone line.Which of the following reflects what the author intends to convey?A
Airline apps have made airline competitions fiercer than ever.B
Airline apps have immensely transformed travelers' digital lives.C
Airline apps will probably replace airline staff in the near future.D
Airline apps have provided magazines and newspaper for travelers.
热门标签
最新试卷
