Copying Birds May Save Aircraft FuelBoth Boeing and Airbus have trumpeted the efficiency of their newest aircraft.The 787 and 350 respectively.Their clever designs and lightweightcompositescertainly make a difference.But a group of researchers at Stanford University,led by Ilan Kroo,has suggested that airlines could take a more naturalisticapproach to cutting jet-fuel use and it would not require them to buy newaircraft.The answer,says Dr Kroo,lies with birds.Since 1914,scientists have known thatbirds flying in formation-a V-shape-expend less energy.The air flowing over abird's wings curls upwards behind the wingtips.a phenomenon known asupwash.Other birds flying in the upwash experience reduced drag,and spendless energy propelling themselves.Peter Lissaman,anaeronautics expert whowas formerly at Caltech and the University of Southern California,has suggestedthat a formation of 25 birds might enjoy a range increase of 71%.When applied to aircraft,the principles are not substantially different.Dr Krooand his team modeled what would happen if three passenger jets departing fromLos Angeles,San Francisco and I as Vegas were to assemble over Utah,assume aninverted V-formation occasionally change places so all could have a turn in themost favourable positions,and proceed to London.They found that the aircraftconsumed as much as 15%less fuel（coupled with a reduction in carbon-dioxideoutput）.Nitrogen-oxide emissions during the cruising portions of the flight fellby around a quarter.There are,of course,knots to be worked out.One consideration is safety,or atleast the perception of it.Would passengers feel comfortable travelling incompanion?Dr Kroo points out that the aircraft could be separated by severalnautical miles,and would not be in the intimate groupings favoured by displayteams like the Red Arrows,A passenger peering out of the window might noteven see the other planes.Whether the separation distances involved wouldsatisfy air-traffic-control regulations is another matter,although a working groupat the International Civil Aviation Organisation has included the possibility offormation flying in a blueprint for new operational guidelines.It remains to be seen how weather conditions affect the air flows that makeformation flight more efficient.In zones of increased turbulence,the planes'wakes will decay more quickly and the effect will diminish.Dr Kroo says this isone of the areas his team will investigate further.It might also be hard for airlinesto co-ordinate the departure times and destinations of passenger aircraft in a waythat would allow them to gain from formation flight.Cargo aircraft,in contrast,might be easier to reschedule,as might routine military flight.As it happens,America's armed forces are on the on case already.Earlier thisyear the country'S Defence Advanced Research Projects Agency announcedplans to pay Boeing to investigate formation flight,though the programme hasyet to begin.There are reports that some military aircraft flew in formation whenthey were low on fuel during the Second World War,but Dr Lissaman says theyare unsubstantiated."My father was an RAF pilot and my cousin the skipper of aLancaster lost over Berlin,"he adds.So he should knowThe role that weather plays in formation flight has not yet been clearly defined.
Copying Birds May Save Aircraft FuelBoth Boeing and Airbus have trumpeted the efficiency of their newest aircraft.The 787 and 350 respectively.Their clever designs and lightweightcompositescertainly make a difference.But a group of researchers at Stanford University,led by Ilan Kroo,has suggested that airlines could take a more naturalisticapproach to cutting jet-fuel use and it would not require them to buy newaircraft.The answer,says Dr Kroo,lies with birds.Since 1914,scientists have known thatbirds flying in formation-a V-shape-expend less energy.The air flowing over abird's wings curls upwards behind the wingtips.a phenomenon known asupwash.Other birds flying in the upwash experience reduced drag,and spendless energy propelling themselves.Peter Lissaman,anaeronautics expert whowas formerly at Caltech and the University of Southern California,has suggestedthat a formation of 25 birds might enjoy a range increase of 71%.When applied to aircraft,the principles are not substantially different.Dr Krooand his team modeled what would happen if three passenger jets departing fromLos Angeles,San Francisco and I as Vegas were to assemble over Utah,assume aninverted V-formation occasionally change places so all could have a turn in themost favourable positions,and proceed to London.They found that the aircraftconsumed as much as 15%less fuel（coupled with a reduction in carbon-dioxideoutput）.Nitrogen-oxide emissions during the cruising portions of the flight fellby around a quarter.There are,of course,knots to be worked out.One consideration is safety,or atleast the perception of it.Would passengers feel comfortable travelling incompanion?Dr Kroo points out that the aircraft could be separated by severalnautical miles,and would not be in the intimate groupings favoured by displayteams like the Red Arrows,A passenger peering out of the window might noteven see the other planes.Whether the separation distances involved wouldsatisfy air-traffic-control regulations is another matter,although a working groupat the International Civil Aviation Organisation has included the possibility offormation flying in a blueprint for new operational guidelines.It remains to be seen how weather conditions affect the air flows that makeformation flight more efficient.In zones of increased turbulence,the planes'wakes will decay more quickly and the effect will diminish.Dr Kroo says this isone of the areas his team will investigate further.It might also be hard for airlinesto co-ordinate the departure times and destinations of passenger aircraft in a waythat would allow them to gain from formation flight.Cargo aircraft,in contrast,might be easier to reschedule,as might routine military flight.As it happens,America's armed forces are on the on case already.Earlier thisyear the country'S Defence Advanced Research Projects Agency announcedplans to pay Boeing to investigate formation flight,though the programme hasyet to begin.There are reports that some military aircraft flew in formation whenthey were low on fuel during the Second World War,but Dr Lissaman says theyare unsubstantiated."My father was an RAF pilot and my cousin the skipper of aLancaster lost over Berlin,"he adds.So he should know
The role that weather plays in formation flight has not yet been clearly defined.
The role that weather plays in formation flight has not yet been clearly defined.
参考解析
解析：由题干关键词weather可推测答案依据在原文第五段第一句。题千the rolethe weather plays是原文信息句It remains to be seen how weather conditionsaffected the air flow的简要表达,而题干中的has not yet been clearly defined和原文的it remains to be seen意思是相同的。因而可以判断本句正确。答案为T.
相关考题：
We are pleased to advise that orders made to your designs and packing presentation may also be entertained.(英译中)
根据下面材料，回答第 41～40 题：第 41 题 Findings of the Stanford University researchers will promote the sales of new Boeing and Airbus aircraft.
Much __________I have traveled, I have never seen anyone to equal her in efficiency．A.althoughB.asC.whileD.if
Much__________I have traveled, I have never seen anyone to equal her in efficiency.A．althoughB．asC．whileD．if
Some companies have introduced flexible working time with less emphasis on pressure ____A.than more on efficiencyB.and more on efficiencyC.and more efficiency D.than efficiency
Text 4 You might soon be able to sneak down to the cargo hold for a nap the next time you take an ultra-long fiight.That's the idea being fioated by plane manufacturer Airbus and seatmaker Zodiac Aerospace.The companies say they're working to develop"sleeping berths"that could be installed in the cargo holds of certain long-range Airbus aircraft.Airbus and Zodiac Aerospace say the cargo compartment modules would"offer new opportunities for additional services to passengers,improving their experience while enabling airlines to differentiate and add value for their commercial operations."The companies say they hope to offer the option to airlines for orders beginning in 2020.Initially,the sleeper modules would be offered on Airbus'A330 widebodies,either on new deliveries or with an option to retrofit existing aircraft.Decisions on how to market and sell such options are typically left up to airline customers.Airbus and Zodiac Aerospace did not detail any specific concepts,but it's likely passenger carriers would consider several options.One might include selling access for passengers sitting elsewhere on the plane,presumably letting them pay for several hours-or perhaps an entire flight's worth-of time in the sleepers.Some higher-end carriers might explore the idea as a possibility to add a lounge area,where one of the perks could be a nap.Airbus and Zodiac offered several concepts in mock-ups accompanying their press statement.One shows a standard lounge;others show options that include a conference room,a"kids and family zone"and even a"medical care zone."Absent additional details,the berths are unlikely to become an option for the entire duration of a flight.Safety rules require passengers to be buckled into seats during takeoff and landing,and it's not clear whether such an option would be available in a cargo area of sleeper berths.It also seems unlikely that a passenger would want to commit to a sleeper berth for flights of eight hours or more without a dedicated option for upright seating,or windows."These underfloor sleeping berths would be aimed more towards economy class market,and would be available for a lower price for a passenger than a premium class flatbed seat."Airbus and Zodiac Aerospace touted the ease of installation to carriers,saying modules would be"easily interchangeable with regular cargo containers during a typical turnaround if required.Moreover,the aircraft's cargo fioor and cargo loading system will not be affected at all,as the passenger module will sit directly on it."For now,Airbus and Zodiac Aerospace will test the market to gauge interest.38.Which of the following statement is right?A.Both the two companies don't have any detailed concepts.B.There are lounge areas in some higher-end carriers.C.Extra services may make the sleeping berth a better choice.D.The lounge area is simply for a nap.
Text 4 You might soon be able to sneak down to the cargo hold for a nap the next time you take an ultra-long fiight.That's the idea being fioated by plane manufacturer Airbus and seatmaker Zodiac Aerospace.The companies say they're working to develop"sleeping berths"that could be installed in the cargo holds of certain long-range Airbus aircraft.Airbus and Zodiac Aerospace say the cargo compartment modules would"offer new opportunities for additional services to passengers,improving their experience while enabling airlines to differentiate and add value for their commercial operations."The companies say they hope to offer the option to airlines for orders beginning in 2020.Initially,the sleeper modules would be offered on Airbus'A330 widebodies,either on new deliveries or with an option to retrofit existing aircraft.Decisions on how to market and sell such options are typically left up to airline customers.Airbus and Zodiac Aerospace did not detail any specific concepts,but it's likely passenger carriers would consider several options.One might include selling access for passengers sitting elsewhere on the plane,presumably letting them pay for several hours-or perhaps an entire flight's worth-of time in the sleepers.Some higher-end carriers might explore the idea as a possibility to add a lounge area,where one of the perks could be a nap.Airbus and Zodiac offered several concepts in mock-ups accompanying their press statement.One shows a standard lounge;others show options that include a conference room,a"kids and family zone"and even a"medical care zone."Absent additional details,the berths are unlikely to become an option for the entire duration of a flight.Safety rules require passengers to be buckled into seats during takeoff and landing,and it's not clear whether such an option would be available in a cargo area of sleeper berths.It also seems unlikely that a passenger would want to commit to a sleeper berth for flights of eight hours or more without a dedicated option for upright seating,or windows."These underfloor sleeping berths would be aimed more towards economy class market,and would be available for a lower price for a passenger than a premium class flatbed seat."Airbus and Zodiac Aerospace touted the ease of installation to carriers,saying modules would be"easily interchangeable with regular cargo containers during a typical turnaround if required.Moreover,the aircraft's cargo fioor and cargo loading system will not be affected at all,as the passenger module will sit directly on it."For now,Airbus and Zodiac Aerospace will test the market to gauge interest.37.The word"retrofit"（Para.3）most probably meansA.repair.B.renovate.C.remodel.D.renew.
Text 4 You might soon be able to sneak down to the cargo hold for a nap the next time you take an ultra-long fiight.That's the idea being fioated by plane manufacturer Airbus and seatmaker Zodiac Aerospace.The companies say they're working to develop"sleeping berths"that could be installed in the cargo holds of certain long-range Airbus aircraft.Airbus and Zodiac Aerospace say the cargo compartment modules would"offer new opportunities for additional services to passengers,improving their experience while enabling airlines to differentiate and add value for their commercial operations."The companies say they hope to offer the option to airlines for orders beginning in 2020.Initially,the sleeper modules would be offered on Airbus'A330 widebodies,either on new deliveries or with an option to retrofit existing aircraft.Decisions on how to market and sell such options are typically left up to airline customers.Airbus and Zodiac Aerospace did not detail any specific concepts,but it's likely passenger carriers would consider several options.One might include selling access for passengers sitting elsewhere on the plane,presumably letting them pay for several hours-or perhaps an entire flight's worth-of time in the sleepers.Some higher-end carriers might explore the idea as a possibility to add a lounge area,where one of the perks could be a nap.Airbus and Zodiac offered several concepts in mock-ups accompanying their press statement.One shows a standard lounge;others show options that include a conference room,a"kids and family zone"and even a"medical care zone."Absent additional details,the berths are unlikely to become an option for the entire duration of a flight.Safety rules require passengers to be buckled into seats during takeoff and landing,and it's not clear whether such an option would be available in a cargo area of sleeper berths.It also seems unlikely that a passenger would want to commit to a sleeper berth for flights of eight hours or more without a dedicated option for upright seating,or windows."These underfloor sleeping berths would be aimed more towards economy class market,and would be available for a lower price for a passenger than a premium class flatbed seat."Airbus and Zodiac Aerospace touted the ease of installation to carriers,saying modules would be"easily interchangeable with regular cargo containers during a typical turnaround if required.Moreover,the aircraft's cargo fioor and cargo loading system will not be affected at all,as the passenger module will sit directly on it."For now,Airbus and Zodiac Aerospace will test the market to gauge interest.36.According to the first two paragraphs what we may learn about the sleeping berth?A.It will be installed in all Airbus aircrafts.B.It will bring considerable returns.C.It has been put into use.D.It will bring new and better experience.
He may not be so clever as Peter,but he is as industrious as can be.A:ambitious B:busyC:diligent D:energetic
Birds have a sharp sense of sight and dogs have a sharp sense of smelling.A:sensitive B:acuteC:edgy D:bright
Copying Birds May Save Aircraft FuelBoth Boeing and Airbus have trumpeted the efficiency of their newest aircraft.The 787 and 350 respectively.Their clever designs and lightweightcompositescertainly make a difference.But a group of researchers at Stanford University,led by Ilan Kroo,has suggested that airlines could take a more naturalisticapproach to cutting jet-fuel use and it would not require them to buy newaircraft.The answer,says Dr Kroo,lies with birds.Since 1914,scientists have known thatbirds flying in formation-a V-shape-expend less energy.The air flowing over abird's wings curls upwards behind the wingtips.a phenomenon known asupwash.Other birds flying in the upwash experience reduced drag,and spendless energy propelling themselves.Peter Lissaman,anaeronautics expert whowas formerly at Caltech and the University of Southern California,has suggestedthat a formation of 25 birds might enjoy a range increase of 71%.When applied to aircraft,the principles are not substantially different.Dr Krooand his team modeled what would happen if three passenger jets departing fromLos Angeles,San Francisco and I as Vegas were to assemble over Utah,assume aninverted V-formation occasionally change places so all could have a turn in themost favourable positions,and proceed to London.They found that the aircraftconsumed as much as 15%less fuel（coupled with a reduction in carbon-dioxideoutput）.Nitrogen-oxide emissions during the cruising portions of the flight fellby around a quarter.There are,of course,knots to be worked out.One consideration is safety,or atleast the perception of it.Would passengers feel comfortable travelling incompanion?Dr Kroo points out that the aircraft could be separated by severalnautical miles,and would not be in the intimate groupings favoured by displayteams like the Red Arrows,A passenger peering out of the window might noteven see the other planes.Whether the separation distances involved wouldsatisfy air-traffic-control regulations is another matter,although a working groupat the International Civil Aviation Organisation has included the possibility offormation flying in a blueprint for new operational guidelines.It remains to be seen how weather conditions affect the air flows that makeformation flight more efficient.In zones of increased turbulence,the planes'wakes will decay more quickly and the effect will diminish.Dr Kroo says this isone of the areas his team will investigate further.It might also be hard for airlinesto co-ordinate the departure times and destinations of passenger aircraft in a waythat would allow them to gain from formation flight.Cargo aircraft,in contrast,might be easier to reschedule,as might routine military flight.As it happens,America's armed forces are on the on case already.Earlier thisyear the country'S Defence Advanced Research Projects Agency announcedplans to pay Boeing to investigate formation flight,though the programme hasyet to begin.There are reports that some military aircraft flew in formation whenthey were low on fuel during the Second World War,but Dr Lissaman says theyare unsubstantiated."My father was an RAF pilot and my cousin the skipper of aLancaster lost over Berlin,"he adds.So he should knowThe upwash experience may save propelling energy as well as reducing resistance.
Copying Birds May Save Aircraft FuelBoth Boeing and Airbus have trumpeted the efficiency of their newest aircraft.The 787 and 350 respectively.Their clever designs and lightweightcompositescertainly make a difference.But a group of researchers at Stanford University,led by Ilan Kroo,has suggested that airlines could take a more naturalisticapproach to cutting jet-fuel use and it would not require them to buy newaircraft.The answer,says Dr Kroo,lies with birds.Since 1914,scientists have known thatbirds flying in formation-a V-shape-expend less energy.The air flowing over abird's wings curls upwards behind the wingtips.a phenomenon known asupwash.Other birds flying in the upwash experience reduced drag,and spendless energy propelling themselves.Peter Lissaman,anaeronautics expert whowas formerly at Caltech and the University of Southern California,has suggestedthat a formation of 25 birds might enjoy a range increase of 71%.When applied to aircraft,the principles are not substantially different.Dr Krooand his team modeled what would happen if three passenger jets departing fromLos Angeles,San Francisco and I as Vegas were to assemble over Utah,assume aninverted V-formation occasionally change places so all could have a turn in themost favourable positions,and proceed to London.They found that the aircraftconsumed as much as 15%less fuel（coupled with a reduction in carbon-dioxideoutput）.Nitrogen-oxide emissions during the cruising portions of the flight fellby around a quarter.There are,of course,knots to be worked out.One consideration is safety,or atleast the perception of it.Would passengers feel comfortable travelling incompanion?Dr Kroo points out that the aircraft could be separated by severalnautical miles,and would not be in the intimate groupings favoured by displayteams like the Red Arrows,A passenger peering out of the window might noteven see the other planes.Whether the separation distances involved wouldsatisfy air-traffic-control regulations is another matter,although a working groupat the International Civil Aviation Organisation has included the possibility offormation flying in a blueprint for new operational guidelines.It remains to be seen how weather conditions affect the air flows that makeformation flight more efficient.In zones of increased turbulence,the planes'wakes will decay more quickly and the effect will diminish.Dr Kroo says this isone of the areas his team will investigate further.It might also be hard for airlinesto co-ordinate the departure times and destinations of passenger aircraft in a waythat would allow them to gain from formation flight.Cargo aircraft,in contrast,might be easier to reschedule,as might routine military flight.As it happens,America's armed forces are on the on case already.Earlier thisyear the country'S Defence Advanced Research Projects Agency announcedplans to pay Boeing to investigate formation flight,though the programme hasyet to begin.There are reports that some military aircraft flew in formation whenthey were low on fuel during the Second World War,but Dr Lissaman says theyare unsubstantiated."My father was an RAF pilot and my cousin the skipper of aLancaster lost over Berlin,"he adds.So he should knowFindings of the Stanford University researchers will promote the sales of newBoeing and Airbus aircraft.
Copying Birds May Save Aircraft FuelBoth Boeing and Airbus have trumpeted the efficiency of their newest aircraft.The 787 and 350 respectively.Their clever designs and lightweightcompositescertainly make a difference.But a group of researchers at Stanford University,led by Ilan Kroo,has suggested that airlines could take a more naturalisticapproach to cutting jet-fuel use and it would not require them to buy newaircraft.The answer,says Dr Kroo,lies with birds.Since 1914,scientists have known thatbirds flying in formation-a V-shape-expend less energy.The air flowing over abird's wings curls upwards behind the wingtips.a phenomenon known asupwash.Other birds flying in the upwash experience reduced drag,and spendless energy propelling themselves.Peter Lissaman,anaeronautics expert whowas formerly at Caltech and the University of Southern California,has suggestedthat a formation of 25 birds might enjoy a range increase of 71%.When applied to aircraft,the principles are not substantially different.Dr Krooand his team modeled what would happen if three passenger jets departing fromLos Angeles,San Francisco and I as Vegas were to assemble over Utah,assume aninverted V-formation occasionally change places so all could have a turn in themost favourable positions,and proceed to London.They found that the aircraftconsumed as much as 15%less fuel（coupled with a reduction in carbon-dioxideoutput）.Nitrogen-oxide emissions during the cruising portions of the flight fellby around a quarter.There are,of course,knots to be worked out.One consideration is safety,or atleast the perception of it.Would passengers feel comfortable travelling incompanion?Dr Kroo points out that the aircraft could be separated by severalnautical miles,and would not be in the intimate groupings favoured by displayteams like the Red Arrows,A passenger peering out of the window might noteven see the other planes.Whether the separation distances involved wouldsatisfy air-traffic-control regulations is another matter,although a working groupat the International Civil Aviation Organisation has included the possibility offormation flying in a blueprint for new operational guidelines.It remains to be seen how weather conditions affect the air flows that makeformation flight more efficient.In zones of increased turbulence,the planes'wakes will decay more quickly and the effect will diminish.Dr Kroo says this isone of the areas his team will investigate further.It might also be hard for airlinesto co-ordinate the departure times and destinations of passenger aircraft in a waythat would allow them to gain from formation flight.Cargo aircraft,in contrast,might be easier to reschedule,as might routine military flight.As it happens,America's armed forces are on the on case already.Earlier thisyear the country'S Defence Advanced Research Projects Agency announcedplans to pay Boeing to investigate formation flight,though the programme hasyet to begin.There are reports that some military aircraft flew in formation whenthey were low on fuel during the Second World War,but Dr Lissaman says theyare unsubstantiated."My father was an RAF pilot and my cousin the skipper of aLancaster lost over Berlin,"he adds.So he should knowIt has been documented that during World War I,America's armed forcesonce tried formation flight to save fuel.
资料：Virgin America helped Airbus pip Boeing at the post to retain its crown as the world’s largest commercial plane maker.Airbus trailed its arch-rival Boeing in number of orders for most of 2010 but moved ahead after a flurry of sales at the end of the year. At the end of December, Virgin America, Richard Branson’s upstart US airline, ordered 30 of the updated version of Airbus’s A320 model. Airbus has promised the A320 with the new engine option will cut fuel consumption and carbon emissions by 15% compared with the existing models, figures disputed by Boeing and some analysts. The $5.1nd（￡ 3.2nd） contract was the first order for the updated airplanes.The Virgin deal capped a year when Airbus took orders for 644 airplanes worth $84nd at list price. Boeing won 625 gross orders with a list price of $70nd. It was held back by delays to its 787 Dreamliner.Both Airbus and Boeing are recovering strongly from an industry recession that saw combined demand for their planes fall by more than two-thirds in 2009. White there were still dozens of plane cancellations in 2010, and both firms have struggled with delays, Airbus secured more than twice the number of airplane orders in 2010 that it had anticipated.Tom Enders, chief executive, said:”2010 has been better than we expected. We will look at 2011 more optimistically. Growth, especially in aviation, is back, and this is largely due to emerging markets. Asia, the Middle East, that’s certainly been the focus.”Last week Airbus announced a $16nd deal with Indigo for 180 airplanes, the largest single order for aircraft in commercial aviation history. The order includes 30 of Airbus’s original A320 single-aisle jets and 150 with Airbus’s new engine-option A320s.Airbus delivered more planes than its US rival for the eighth consecutive year. Its total of 510 deliveries, up from 498 in 2009, topped the 500 mark for the first time at Airbus. Last year the company sold its 10,000th plane in its 40-year history Boeing deliveries fell by 4% to 462 airplanes from 481.John Leahy, Airbus sales chief, said: “There figures show the economy is improving. We have dodged the bullet on a double-dip recession. Aviation is growing again because of Asia, low-cost carriers emerging markets. The only negative on the horizon is the fuel price.”Which of the following is TRUE according to the article?A.IndiGo’s order for Airbus’s new engine-option A320s was the first firm order for the updated airplanes.B.Airbus delivered more planes than Boeing in 2006.C.2009 saw demand for Boeing’s planes fall but not Airbus’s.D.Airbus was able to stay ahead of Boeing in number of orders throughout the year 2010.
Training includes practical experience working on a range of aircraft on campus including a______Boeing aircraft owned by the school.A.brokenB.functioningC.usedD.skeleton
资料：Virgin America helped Airbus pip Boeing at the post to retain its crown as the world’s largest commercial plane maker.Airbus trailed its arch-rival Boeing in number of orders for most of 2010 but moved ahead after a flurry of sales at the end of the year. At the end of December, Virgin America, Richard Branson’s upstart US airline, ordered 30 of the updated version of Airbus’s A320 model. Airbus has promised the A320 with the new engine option will cut fuel consumption and carbon emissions by 15% compared with the existing models, figures disputed by Boeing and some analysts. The $5.1nd（￡ 3.2nd） contract was the first order for the updated airplanes.The Virgin deal capped a year when Airbus took orders for 644 airplanes worth $84nd at list price. Boeing won 625 gross orders with a list price of $70nd. It was held back by delays to its 787 Dreamliner.Both Airbus and Boeing are recovering strongly from an industry recession that saw combined demand for their planes fall by more than two-thirds in 2009. White there were still dozens of plane cancellations in 2010, and both firms have struggled with delays, Airbus secured more than twice the number of airplane orders in 2010 that it had anticipated.Tom Enders, chief executive, said:”2010 has been better than we expected. We will look at 2011 more optimistically. Growth, especially in aviation, is back, and this is largely due to emerging markets. Asia, the Middle East, that’s certainly been the focus.”Last week Airbus announced a $16nd deal with Indigo for 180 airplanes, the largest single order for aircraft in commercial aviation history. The order includes 30 of Airbus’s original A320 single-aisle jets and 150 with Airbus’s new engine-option A320s.Airbus delivered more planes than its US rival for the eighth consecutive year. Its total of 510 deliveries, up from 498 in 2009, topped the 500 mark for the first time at Airbus. Last year the company sold its 10,000th plane in its 40-year history Boeing deliveries fell by 4% to 462 airplanes from 481.John Leahy, Airbus sales chief, said: “There figures show the economy is improving. We have dodged the bullet on a double-dip recession. Aviation is growing again because of Asia, low-cost carriers emerging markets. The only negative on the horizon is the fuel price.”Which of the following is NOT a factor given in the article for the growth of the aviation industry in 2010?A.fuel priceB.low-cost carriesC.emerging markets in the Middle EastD.emerging markets in Asia
We have experience in loading data ___ several A/C-manufacturers such as Boeing,Airbus,British Aerospace,Fokker,De Havilland and ATR.A.inB.toC.besideD.from
资料：Singapore Airlines plans to introduce inflight mobile phone and internet access in May this year,beginning with its flagship Airbus A380 fleet.Several pricing models are believed to be under consideration,beginning with a low-cost package suitable for WE—service such as Google Gmail,Yahoo and Hotmail as well as a 30MB allowance for around SGD$25 （that's $20 Russia and US,and ￡20 and ￡ 14）.The airline is polling selected members of its KrisFlyer frequent flyer loyalty program to participate in an online survey about your attitudes towards inflight mobile and internet services,which we are planning to introduce from May 2011 according to the email invitation.The survey asks travellers for their opinions on pricing packages such as SGD$25 for 30MB,as well as if mobile phone cells and SMS messages should be permitted.Should passagers be allowed to make and take calls at 30000 feet they'll pay plenty for the privilege, with calls being charged at international roaming rates.As it's up to each country to decide what those rates are-and with Singapore Airlines effectively being its own country in terms of providing a fully controlled and self-contained telecoms system on board each plane-those rates could literally be sky high.SQ's inflight internet and mobile service, which may carry the KrisNet brand in keeping with the KrisWorld inflight entertainment system, is expected to debut on the Airbus A380 before being installed onto the airline's A340-500 and Boeing 777-300ER aircraft.Passagers will be able to access the internet on any device from a smart phone to a tablet or laptop, as Singapore Airlines will support connections through both Wifi wireless networking （using a series of low-hotpots located throughout the plane） and 3G（via tiny pico-cell stations）.It will employ the pepular OnAir technology, jointly developed by IT company SITA and Airbus,and currently used by over 20 airlines（including Air New Zealand's currenttrial of in-flight internet） which feeds the Wifi and 3G signals through to Inmarsat's SwiftBroadband satellite network.Which of the following may be the best title for the passage?A.Singapore Airlines to charge high international roaming ratesB.Singapore Airlines to offer different pricing models for inflight mobile and Internet servicesC.Singapore Airlines to unveil sky high netD.Singapore Airlines to conduct online survey
资料：Virgin America helped Airbus pip Boeing at the post to retain its crown as the world’s largest commercial plane maker.Airbus trailed its arch-rival Boeing in number of orders for most of 2010 but moved ahead after a flurry of sales at the end of the year. At the end of December, Virgin America, Richard Branson’s upstart US airline, ordered 30 of the updated version of Airbus’s A320 model. Airbus has promised the A320 with the new engine option will cut fuel consumption and carbon emissions by 15% compared with the existing models, figures disputed by Boeing and some analysts. The $5.1nd（￡ 3.2nd） contract was the first order for the updated airplanes.The Virgin deal capped a year when Airbus took orders for 644 airplanes worth $84nd at list price. Boeing won 625 gross orders with a list price of $70nd. It was held back by delays to its 787 Dreamliner.Both Airbus and Boeing are recovering strongly from an industry recession that saw combined demand for their planes fall by more than two-thirds in 2009. White there were still dozens of plane cancellations in 2010, and both firms have struggled with delays, Airbus secured more than twice the number of airplane orders in 2010 that it had anticipated.Tom Enders, chief executive, said:”2010 has been better than we expected. We will look at 2011 more optimistically. Growth, especially in aviation, is back, and this is largely due to emerging markets. Asia, the Middle East, that’s certainly been the focus.”Last week Airbus announced a $16nd deal with Indigo for 180 airplanes, the largest single order for aircraft in commercial aviation history. The order includes 30 of Airbus’s original A320 single-aisle jets and 150 with Airbus’s new engine-option A320s.Airbus delivered more planes than its US rival for the eighth consecutive year. Its total of 510 deliveries, up from 498 in 2009, topped the 500 mark for the first time at Airbus. Last year the company sold its 10,000th plane in its 40-year history Boeing deliveries fell by 4% to 462 airplanes from 481.John Leahy, Airbus sales chief, said: “There figures show the economy is improving. We have dodged the bullet on a double-dip recession. Aviation is growing again because of Asia, low-cost carriers emerging markets. The only negative on the horizon is the fuel price.”According to Airbus, the updated version of its A320 model is different from the original model in that________.A.it has multiple options when it comes to its engineB.it is a single-aisle jetC.it is more fuel-efficient and environmental-friendlyD.it has a more powerful engine
资料：Singapore Airlines plans to introduce inflight mobile phone and internet access in May this year,beginning with its flagship Airbus A380 fleet.Several pricing models are believed to be under consideration,beginning with a low-cost package suitable for WE—service such as Google Gmail,Yahoo and Hotmail as well as a 30MB allowance for around SGD$25 （that's $20 Russia and US,and ￡20 and ￡ 14）.The airline is polling selected members of its KrisFlyer frequent flyer loyalty program to participate in an online survey about your attitudes towards inflight mobile and internet services,which we are planning to introduce from May 2011 according to the email invitation.The survey asks travellers for their opinions on pricing packages such as SGD$25 for 30MB,as well as if mobile phone cells and SMS messages should be permitted.Should passagers be allowed to make and take calls at 30000 feet they'll pay plenty for the privilege, with calls being charged at international roaming rates.As it's up to each country to decide what those rates are-and with Singapore Airlines effectively being its own country in terms of providing a fully controlled and self-contained telecoms system on board each plane-those rates could literally be sky high.SQ's inflight internet and mobile service, which may carry the KrisNet brand in keeping with the KrisWorld inflight entertainment system, is expected to debut on the Airbus A380 before being installed onto the airline's A340-500 and Boeing 777-300ER aircraft.Passagers will be able to access the internet on any device from a smart phone to a tablet or laptop, as Singapore Airlines will support connections through both Wifi wireless networking （using a series of low-hotpots located throughout the plane） and 3G（via tiny pico-cell stations）.It will employ the pepular OnAir technology, jointly developed by IT company SITA and Airbus,and currently used by over 20 airlines（including Air New Zealand's currenttrial of in-flight internet） which feeds the Wifi and 3G signals through to Inmarsat's SwiftBroadband satellite network.From the passage,we know that__.A.Singapore Airlines' online survey is to be carried out among its registered members.B.Airbus A380 will be the first aircraft to be equipped with inflight internet and mobile service.C.Singapore Airlines' inflight internet access will be limited to some specific devices.D.Singapore Airlines' will be the first to introduce inflight mobile phone and internet access.
资料：Virgin America helped Airbus pip Boeing at the post to retain its crown as the world’s largest commercial plane maker.Airbus trailed its arch-rival Boeing in number of orders for most of 2010 but moved ahead after a flurry of sales at the end of the year. At the end of December, Virgin America, Richard Branson’s upstart US airline, ordered 30 of the updated version of Airbus’s A320 model. Airbus has promised the A320 with the new engine option will cut fuel consumption and carbon emissions by 15% compared with the existing models, figures disputed by Boeing and some analysts. The $5.1nd（￡ 3.2nd） contract was the first order for the updated airplanes.The Virgin deal capped a year when Airbus took orders for 644 airplanes worth $84nd at list price. Boeing won 625 gross orders with a list price of $70nd. It was held back by delays to its 787 Dreamliner.Both Airbus and Boeing are recovering strongly from an industry recession that saw combined demand for their planes fall by more than two-thirds in 2009. White there were still dozens of plane cancellations in 2010, and both firms have struggled with delays, Airbus secured more than twice the number of airplane orders in 2010 that it had anticipated.Tom Enders, chief executive, said:”2010 has been better than we expected. We will look at 2011 more optimistically. Growth, especially in aviation, is back, and this is largely due to emerging markets. Asia, the Middle East, that’s certainly been the focus.”Last week Airbus announced a $16nd deal with Indigo for 180 airplanes, the largest single order for aircraft in commercial aviation history. The order includes 30 of Airbus’s original A320 single-aisle jets and 150 with Airbus’s new engine-option A320s.Airbus delivered more planes than its US rival for the eighth consecutive year. Its total of 510 deliveries, up from 498 in 2009, topped the 500 mark for the first time at Airbus. Last year the company sold its 10,000th plane in its 40-year history Boeing deliveries fell by 4% to 462 airplanes from 481.John Leahy, Airbus sales chief, said: “There figures show the economy is improving. We have dodged the bullet on a double-dip recession. Aviation is growing again because of Asia, low-cost carriers emerging markets. The only negative on the horizon is the fuel price.”Airbus’ number of plane orders in 2010 surpassed that of Boeing because_________.A.Boeing was held back by delays to its 787 DreamlinerB.US airplane Virgin America ordered 30 airplanes from AirbusC.India’s Indigo bought 180 airplanes from AirbusD.Boeing had not recovered from recession
单选题The traditional Navaho does not allow copying of sand paintings because ______.Ait is against Navaho belief systemBthis is a craft exclusive to the supernaturalCanything copied is considered worthlessDthe copying may bring harm to other Navahos
单选题A pattern according to which vessels and / or aircraft may conduct a co-ordinated search is a（）.AResearch patternBResearch modeCSearch patternDSearch and rescue mode
单选题What does the author intend to do in writing the passage?ATo evaluate our needs of birds to save our earth.BTo describe various measures to protect the birds.CTo criticize the effects of human pollution on birds.DTo explain a basic tie between birds and human beings.
单选题The skulls and pelvic bones of some species of dinosaur share characteristics with the skulls and pelvic bones of all modern birds. Even though not all dinosaurs have these characteristics, there are scientists who claim that all animals that do have these characteristics are dinosaurs. If the statements above and the claim of the scientists are true, which of the following must also be true?ABirds share more characteristics with dinosaurs than they do with other animals.BSome ancient dinosaurs were indistinguishable from modern birds.CAll animals whose skulls share the characteristics of those of modern birds also have pelvic bones that are similar to those of modern birds.DModern birds are dinosaurs.EAll dinosaurs are birds.
单选题According to Mother Rigby, Feathertop “still will be saying nothing” because _____Ahe was not clever enough to learn anything.Bhe was only made to have birds’, intelligence.Che did not have a brain to remember anything.Dhe could learn nothing worthwhile in the world.