共用题干
Free Statins with Fast Food could Neutralize Heart Risk
Fast food outlets could provide statin drugs free of___1___so that customers can reduce the heart disease dangers of fatty food,researchers at Imperial College London ___2___in a new study.
Statins reduce the___3___of unhealthy“LDL” cholesterol in the blood. A wealth of trial data has proven them to be highly effective at lowering a person's heart attack___4___.
In a paper published in the American Journal of Cardiology,Dr Darrel Francis and col-leagues calculate that the reduction in heart attack risk offered by a statin is___5___to offset the increase in heart attack risk from___6___a cheeseburger and drinking a milkshake.
Dr Francis,from the National Heart and Lung Institute at Imperial College London,who is the senior author of the study,said:“Statins don't cut out all of the ___7___effects of cheeseburgers and French fries. It's better to avoid fatty food altogether. But we've worked out that in terms of your___8___of having a heart attack. Taking a statin can reduce your risk to more or less the same___9___as a fast food meal increases it.”“It's ironic that people are free to take as many unhealthy condiments in fast food outlets as they___10___，but statins,which are beneficial to heart health,have to be prescribed. It makes sense to make risk-reducing st- atins available just as easily as the unhealthy condiments that are___ 11___free of charge. It would cost less than 5 pence per___12___—not much different to a sachet of sugar.”Dr Fran-cis said.
When people engage in risky behaviours like driving or smoking,they're encouraged to take___13___that lower their risk,like___14___a seatbelt or choosing cigarettes with filters.
Taking a statin is a rational way of___15___some of the risks of eating a fatty meal.
8._________
A: examination
B: suffering
C: determination
D: possibility
Free Statins with Fast Food could Neutralize Heart Risk
Fast food outlets could provide statin drugs free of___1___so that customers can reduce the heart disease dangers of fatty food,researchers at Imperial College London ___2___in a new study.
Statins reduce the___3___of unhealthy“LDL” cholesterol in the blood. A wealth of trial data has proven them to be highly effective at lowering a person's heart attack___4___.
In a paper published in the American Journal of Cardiology,Dr Darrel Francis and col-leagues calculate that the reduction in heart attack risk offered by a statin is___5___to offset the increase in heart attack risk from___6___a cheeseburger and drinking a milkshake.
Dr Francis,from the National Heart and Lung Institute at Imperial College London,who is the senior author of the study,said:“Statins don't cut out all of the ___7___effects of cheeseburgers and French fries. It's better to avoid fatty food altogether. But we've worked out that in terms of your___8___of having a heart attack. Taking a statin can reduce your risk to more or less the same___9___as a fast food meal increases it.”“It's ironic that people are free to take as many unhealthy condiments in fast food outlets as they___10___，but statins,which are beneficial to heart health,have to be prescribed. It makes sense to make risk-reducing st- atins available just as easily as the unhealthy condiments that are___ 11___free of charge. It would cost less than 5 pence per___12___—not much different to a sachet of sugar.”Dr Fran-cis said.
When people engage in risky behaviours like driving or smoking,they're encouraged to take___13___that lower their risk,like___14___a seatbelt or choosing cigarettes with filters.
Taking a statin is a rational way of___15___some of the risks of eating a fatty meal.
8._________
A: examination
B: suffering
C: determination
D: possibility
共用题干
The Arctic Ice is Thawing
Father Christmas may have to move his"workshop"from the North Pole because global warming is
thawing the ice beneath his feet and his reindeers'feet as well.His"workshop"is in dire straits.The"plat-
form"for the"workshop"is melting,said Stefan Norris of the World Wildlife Fund environmental group's
Arctic Program.
An eight-nation report by 250 scientists published recently predicted the Arctic Ocean could be ice-free
in summer by 2100 because of a build-up of heat-trapping gases in the atmosphere,mainly from burning fossil
fuels in cars or factories.The North Pole is getting more and more uninhabitable to Father Christmas.
__________(46)Young people learn that Father Christmas'"workshop"produces millions of gifts delivered
by him on a flying,reindeer-drawn sleigh.Hollywood movies like"The Polar Express"tried to make viewers
believe that Father Christmas lives at the North Pole._______(47)
The"Fortress of Solitude"is near the North Pole that could be under threat in a warmer world. Alan Boldt,
spokesman of the Danish Ministry of Science,suggested ways to rescue Father Christmas._________(48)
Another alternative,he argued,woald be building some electrical facilities to ensure the ice stays on the North
Pole for him."This should be a subject for the United Nations,"he said."Danmark could build windmills to pro-
vide Father Christmas with power."Denmark says Father Christmas'real home is Greenland,which will help,
Denmark thinks,to strengthen its position in claiming the sovereignty over the Pole.__________(49)
"Doesn't he already speak Danish?"Boldt said frostily when asked if Father Christmas would be forced
to learn Danish if Denmark won international recognition of its claim to the Pole.Last month's Arctic report
said the region is warming twice as fast as the rest of the globe,partly because dark ground or water,once un-
covered,soaks up more heat than ice or snow.Finland has been most favored by Father Christmas and it has
about 500,000 tourists a year to visit its Christmas center in Rovaniemi in Lapland._________(50)
_________(50)
A:However,Nordic nations all reject it by claiming that their countries are his home.
B:Therefore the North Pole is the most attractive place in the world.
C:If Denmark's claim were accepted internationally,it would have the legal right to search for oil and gas at the North Pole.
D:One of them would be building a giant floating ice rink for the workshop if the Pole thaws.
E:Maybe Father Christmas has already moved to Rovaniemi.
F:He may have to move from the North Pole within our children's lifetimes.
The Arctic Ice is Thawing
Father Christmas may have to move his"workshop"from the North Pole because global warming is
thawing the ice beneath his feet and his reindeers'feet as well.His"workshop"is in dire straits.The"plat-
form"for the"workshop"is melting,said Stefan Norris of the World Wildlife Fund environmental group's
Arctic Program.
An eight-nation report by 250 scientists published recently predicted the Arctic Ocean could be ice-free
in summer by 2100 because of a build-up of heat-trapping gases in the atmosphere,mainly from burning fossil
fuels in cars or factories.The North Pole is getting more and more uninhabitable to Father Christmas.
__________(46)Young people learn that Father Christmas'"workshop"produces millions of gifts delivered
by him on a flying,reindeer-drawn sleigh.Hollywood movies like"The Polar Express"tried to make viewers
believe that Father Christmas lives at the North Pole._______(47)
The"Fortress of Solitude"is near the North Pole that could be under threat in a warmer world. Alan Boldt,
spokesman of the Danish Ministry of Science,suggested ways to rescue Father Christmas._________(48)
Another alternative,he argued,woald be building some electrical facilities to ensure the ice stays on the North
Pole for him."This should be a subject for the United Nations,"he said."Danmark could build windmills to pro-
vide Father Christmas with power."Denmark says Father Christmas'real home is Greenland,which will help,
Denmark thinks,to strengthen its position in claiming the sovereignty over the Pole.__________(49)
"Doesn't he already speak Danish?"Boldt said frostily when asked if Father Christmas would be forced
to learn Danish if Denmark won international recognition of its claim to the Pole.Last month's Arctic report
said the region is warming twice as fast as the rest of the globe,partly because dark ground or water,once un-
covered,soaks up more heat than ice or snow.Finland has been most favored by Father Christmas and it has
about 500,000 tourists a year to visit its Christmas center in Rovaniemi in Lapland._________(50)
_________(50)
A:However,Nordic nations all reject it by claiming that their countries are his home.
B:Therefore the North Pole is the most attractive place in the world.
C:If Denmark's claim were accepted internationally,it would have the legal right to search for oil and gas at the North Pole.
D:One of them would be building a giant floating ice rink for the workshop if the Pole thaws.
E:Maybe Father Christmas has already moved to Rovaniemi.
F:He may have to move from the North Pole within our children's lifetimes.
共用题干
第一篇
TapeStore: A New Tape Storage System
TapeStore is a new kind of tape storage system which can store up to 6, 000 computer
tapes.No other tape storage system can hold as many computer tapes as TapeStore. The
tapes look exactly like video cassettes.Many hundreds of data files can be stored on each
tape,up to a maximum of 500 million bytes（字节）of data. If you stored the same amount
of information on paper,you would need nearly 4. 5 billion printed pages.
The machine is a tall black box with a mechanical arm.The machine is 2.5 metres high
and 3.0 metres wide,This is how it works.Each tape has a code printed on it.You feed
the code number into TapeStore,which then looks for the code.As soon as TapeStore
locates the code,the arm reaches in and pulls out the tape.
The system is very fast.It takes the mechanical arm about 1 0 seconds to find the tape
it is looking for. The machine then searches the tape to extract（提取）the required file,
and this takes less than a minute.A human technician would have to locate and remove the
tape by hand,and could take at least an hour to find the right file on the tape.
Some of the world's biggest companies,including banks,insurance companies,
airlines,telephone companies,utilities and computer centres,have bought the system.
They like it particularly because the system guarantees the security of their data.
TapeStore was originally developed in Canada and is now being marketed worldwide.
In Europe alone,750 have already been installed at a cost of 480,000 dollars each.
The word"marketed" in the last paragraph can be replaced by
A:installed.
B:used.
C:promoted.
D:designed.
第一篇
TapeStore: A New Tape Storage System
TapeStore is a new kind of tape storage system which can store up to 6, 000 computer
tapes.No other tape storage system can hold as many computer tapes as TapeStore. The
tapes look exactly like video cassettes.Many hundreds of data files can be stored on each
tape,up to a maximum of 500 million bytes（字节）of data. If you stored the same amount
of information on paper,you would need nearly 4. 5 billion printed pages.
The machine is a tall black box with a mechanical arm.The machine is 2.5 metres high
and 3.0 metres wide,This is how it works.Each tape has a code printed on it.You feed
the code number into TapeStore,which then looks for the code.As soon as TapeStore
locates the code,the arm reaches in and pulls out the tape.
The system is very fast.It takes the mechanical arm about 1 0 seconds to find the tape
it is looking for. The machine then searches the tape to extract（提取）the required file,
and this takes less than a minute.A human technician would have to locate and remove the
tape by hand,and could take at least an hour to find the right file on the tape.
Some of the world's biggest companies,including banks,insurance companies,
airlines,telephone companies,utilities and computer centres,have bought the system.
They like it particularly because the system guarantees the security of their data.
TapeStore was originally developed in Canada and is now being marketed worldwide.
In Europe alone,750 have already been installed at a cost of 480,000 dollars each.
The word"marketed" in the last paragraph can be replaced by
A:installed.
B:used.
C:promoted.
D:designed.
共用题干
High-Tech Warfare（战争）
Today,high-tech warfare is no longer an abstract concept,but a real issue.
Technology_______(1)tactics,sociology,and the development of weaponry（武
器）.it also causes the changes in battles.Then what are the new characteristics of
modern battles_______(2)by the application of high technologies?
High-tech warfare naturally includes high technology.In modern battles,a single kind
of weapon can hardly be_______(3).Various weaponry,such as intelligence
detection and information processing,should_______(4)well with each other.
Aerial（航空的）weaponry becomes the main force in battles in the sky. Precision
homing（精确制导）weaponry like cruise missiles and missiles_______(5) satellite
homing systems becomes the main attack weapons.
Battle control systems play a dominant role. Various weapons and logistics（后勤）
systems are_______(6)into a comprehensive framework,centrally representing the
modern high-tech weaponry,Depending on various_______(7)equipment and
means in electronic warfare,our army will not be passively beaten._______(8)the
battlefield , high-tech warfare has created a type of non-linear（非线性的）chaos.
Because of the use of long-range precision weaponry,the opposite parties in warfare can't
"touch"or"see"each other,and distance is no longer the decisive factor affecting the
_______(9)of baffles.It is hard to clearly define the lines between the frontier and
the rear,as well as attack and defense. The traditional three-dimensional air-sea
battlefield will be_______(10)by the multi一dimensional battlefield composed of air,
sea,magnetic,electrical and information battlefields.No large-scale movements can be
conducted_______(11).
Because modern weaponry systems are closely related to chains of demand and
communication and electronic technology,the parties_______(12)have to pay
attention to the usufruct（使用权）and control of electromagnetic frequency spectrum. So
electronic warfare becomes_______(13)important and the necessary guarantee of
victory. Whatever _________ (14) warfare goes to and whatever cloak（宽大外衣）it
wears,it always violates peace and brings the world bloodshed（流血）.Most people think
of high technology as a_______(15)to enhance their lives,and they don't wish it to
be used to destroy lives.
_________(15)
A:rule
B:direction
C:track
D:way
High-Tech Warfare（战争）
Today,high-tech warfare is no longer an abstract concept,but a real issue.
Technology_______(1)tactics,sociology,and the development of weaponry（武
器）.it also causes the changes in battles.Then what are the new characteristics of
modern battles_______(2)by the application of high technologies?
High-tech warfare naturally includes high technology.In modern battles,a single kind
of weapon can hardly be_______(3).Various weaponry,such as intelligence
detection and information processing,should_______(4)well with each other.
Aerial（航空的）weaponry becomes the main force in battles in the sky. Precision
homing（精确制导）weaponry like cruise missiles and missiles_______(5) satellite
homing systems becomes the main attack weapons.
Battle control systems play a dominant role. Various weapons and logistics（后勤）
systems are_______(6)into a comprehensive framework,centrally representing the
modern high-tech weaponry,Depending on various_______(7)equipment and
means in electronic warfare,our army will not be passively beaten._______(8)the
battlefield , high-tech warfare has created a type of non-linear（非线性的）chaos.
Because of the use of long-range precision weaponry,the opposite parties in warfare can't
"touch"or"see"each other,and distance is no longer the decisive factor affecting the
_______(9)of baffles.It is hard to clearly define the lines between the frontier and
the rear,as well as attack and defense. The traditional three-dimensional air-sea
battlefield will be_______(10)by the multi一dimensional battlefield composed of air,
sea,magnetic,electrical and information battlefields.No large-scale movements can be
conducted_______(11).
Because modern weaponry systems are closely related to chains of demand and
communication and electronic technology,the parties_______(12)have to pay
attention to the usufruct（使用权）and control of electromagnetic frequency spectrum. So
electronic warfare becomes_______(13)important and the necessary guarantee of
victory. Whatever _________ (14) warfare goes to and whatever cloak（宽大外衣）it
wears,it always violates peace and brings the world bloodshed（流血）.Most people think
of high technology as a_______(15)to enhance their lives,and they don't wish it to
be used to destroy lives.
_________(15)
A:rule
B:direction
C:track
D:way
These factors interact intimately and cannot be separated.
A: tensely
B: nearly
C: carefully
D: closely
A: tensely
B: nearly
C: carefully
D: closely
共用题干
Chimpanzees
1 Chimpanzees（黑猩猩）will soon be extinct（灭绝）.If the present rate of hunting and habitat（栖息地）destruction continues, then within 20 years, there will be no chimpanzees living in the wild. But this is more than an environmental or moral tragedy（悲剧）.Chimpan-zee extinction may also have profound implications（含意）for the survival of their distant relatives一human beings.
2 In 1975 the biologist Marie-Claire King and Allan Wilson discovered that the human and chimpanzee genomes（基因组）match by ovet 98%. Compare this to the mouse, used as model for human disease in lab tests,which shares only 60% of its DNA with us.In fact, chimpanzees are far more similar to humans than they are to any other species of monkey. As well as resembling us genetically,chimps are highly intelligent and able to use tools.These facts alone should be enough to make protection of chimps an urgent priority（优先）.But there is another,more selfish reason to preserve the chimp.
3 The chimpanzees' trump card（王牌）comes in the field of medical research. Chimpanzees are so similar to humans that veterinarians（兽医）often refer to human medical text-books when treating them. Yet chimpanzees do show differences in several key areas.In parti-cular,chimps are much more resistant to a number of major diseases.It is this ability that is so interesting.
4 For example,chimps seem to show a much higher resistance than humans to HIV,the virus that causes AIDS. Indeed,their use as experimental animals in AIDS research has de-dlined because they are so resistant.
5 By sequencing the chimp genome and pinpointing（找到）the place where the chimpanzee DNA sequence differs from that of humans,scientists hope to be able to discover which part of the genetic code gives chimps their increased resistance to some diseases. This,they hope,will allow them to develop new and more effective treatments for the human forms of these diseases. Such treatments could include the production of new drugs or even the alteration（改变）of the human genetic sequence. The recently completed human genome sequencing project has shown that such an effort is now well within our reach.
Chimpanzee extinction may affect______.
A: some human disease treatments
B: some diseases
C: human survival
D: human genomes
E: key areas
F: healthier lifestyle
Chimpanzees
1 Chimpanzees（黑猩猩）will soon be extinct（灭绝）.If the present rate of hunting and habitat（栖息地）destruction continues, then within 20 years, there will be no chimpanzees living in the wild. But this is more than an environmental or moral tragedy（悲剧）.Chimpan-zee extinction may also have profound implications（含意）for the survival of their distant relatives一human beings.
2 In 1975 the biologist Marie-Claire King and Allan Wilson discovered that the human and chimpanzee genomes（基因组）match by ovet 98%. Compare this to the mouse, used as model for human disease in lab tests,which shares only 60% of its DNA with us.In fact, chimpanzees are far more similar to humans than they are to any other species of monkey. As well as resembling us genetically,chimps are highly intelligent and able to use tools.These facts alone should be enough to make protection of chimps an urgent priority（优先）.But there is another,more selfish reason to preserve the chimp.
3 The chimpanzees' trump card（王牌）comes in the field of medical research. Chimpanzees are so similar to humans that veterinarians（兽医）often refer to human medical text-books when treating them. Yet chimpanzees do show differences in several key areas.In parti-cular,chimps are much more resistant to a number of major diseases.It is this ability that is so interesting.
4 For example,chimps seem to show a much higher resistance than humans to HIV,the virus that causes AIDS. Indeed,their use as experimental animals in AIDS research has de-dlined because they are so resistant.
5 By sequencing the chimp genome and pinpointing（找到）the place where the chimpanzee DNA sequence differs from that of humans,scientists hope to be able to discover which part of the genetic code gives chimps their increased resistance to some diseases. This,they hope,will allow them to develop new and more effective treatments for the human forms of these diseases. Such treatments could include the production of new drugs or even the alteration（改变）of the human genetic sequence. The recently completed human genome sequencing project has shown that such an effort is now well within our reach.
Chimpanzee extinction may affect______.
A: some human disease treatments
B: some diseases
C: human survival
D: human genomes
E: key areas
F: healthier lifestyle
共用题干
Europa's Watery Underworld
Europa,one of Jupiter's 63 known moons,looks bright and icy on the surface.But appearances can be
deceiving:Miles within its cracked,frigid shell,Europa probably hides giant pools of liquid water. Where
scientists find liquid water,they hope to find life as well.
Since we can't go diving into Europa's depths just yet,scientists instead have to investigate the moon's
surface for clues to what lies beneath.In a new study,scientists investigated one group of strange ice patterns
on Europa and concluded that the formations mark the top of an underground pool that holds as much water
as the U.S.Great Lakes.
Pictures of Europa,which is slightly smaller than Earth's moon,clearly show a tangled,icy mishmash
of lines and cracks known as"chaos terrains".These chaotic places cover more than half of Europa. For
more than 10 years,scientists have wondered what causes the formations.The new study suggests that they
arise from the mixing of vast underground stores of liquid water with icy material near the surface.
For scientists who suspect that Europa also may be hiding life beneath its icy surface,the news about
the new lake is exciting.
"It would be great if these lakes harbored life,"Britney Schmidt,a planetary scientist who worked on
the study,told Science News."But even if they didn't,they say that Europa is doing something interesting
and active right now."
Schmidt,a scientist at the University of Texas at Austin,and her colleagues wanted to know how chaos
terrains form.Since they couldn't rocket to Europa to see for themselves,they searched for similar forma-
tions here on Earth.They studied collapsed ice shelves in Antarctica and icy caps on volcanoes in Iceland.
Those features on Earth formed when liquid water mixed with ice.The scientists now suspect something
similar might be happening on Europa:that as water and ice of different temperatures mingle and shift,the
surface fractures.This would explain the jumbled ice sculptures.
"Fracturing catastrophically disrupts the ice in the same way that it causes ice shelves to collapse on
Earth,"Schmidt told Science News.She and her team found that the process could be causing chaos terrains
to form quickly on Europa.
The new study suggests that on this moon,elements such as oxygen from the surface blend with the
deep bodies of water. That mixture may create an environment that supports life.
The size of Europa is a bit larger than that of Earth's moon.
A:Right
B:Wrong
C:Not mentioned
Europa's Watery Underworld
Europa,one of Jupiter's 63 known moons,looks bright and icy on the surface.But appearances can be
deceiving:Miles within its cracked,frigid shell,Europa probably hides giant pools of liquid water. Where
scientists find liquid water,they hope to find life as well.
Since we can't go diving into Europa's depths just yet,scientists instead have to investigate the moon's
surface for clues to what lies beneath.In a new study,scientists investigated one group of strange ice patterns
on Europa and concluded that the formations mark the top of an underground pool that holds as much water
as the U.S.Great Lakes.
Pictures of Europa,which is slightly smaller than Earth's moon,clearly show a tangled,icy mishmash
of lines and cracks known as"chaos terrains".These chaotic places cover more than half of Europa. For
more than 10 years,scientists have wondered what causes the formations.The new study suggests that they
arise from the mixing of vast underground stores of liquid water with icy material near the surface.
For scientists who suspect that Europa also may be hiding life beneath its icy surface,the news about
the new lake is exciting.
"It would be great if these lakes harbored life,"Britney Schmidt,a planetary scientist who worked on
the study,told Science News."But even if they didn't,they say that Europa is doing something interesting
and active right now."
Schmidt,a scientist at the University of Texas at Austin,and her colleagues wanted to know how chaos
terrains form.Since they couldn't rocket to Europa to see for themselves,they searched for similar forma-
tions here on Earth.They studied collapsed ice shelves in Antarctica and icy caps on volcanoes in Iceland.
Those features on Earth formed when liquid water mixed with ice.The scientists now suspect something
similar might be happening on Europa:that as water and ice of different temperatures mingle and shift,the
surface fractures.This would explain the jumbled ice sculptures.
"Fracturing catastrophically disrupts the ice in the same way that it causes ice shelves to collapse on
Earth,"Schmidt told Science News.She and her team found that the process could be causing chaos terrains
to form quickly on Europa.
The new study suggests that on this moon,elements such as oxygen from the surface blend with the
deep bodies of water. That mixture may create an environment that supports life.
The size of Europa is a bit larger than that of Earth's moon.
A:Right
B:Wrong
C:Not mentioned
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.
________（48）
A:The key to your problem is that long nap after dinner
B:Or get together with friends for an evening of cards and conversation
C:At first it may be hard for you to go to sleep without taking a pill
D:The next night you will be ready to sleep at an earlier hour
E: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
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.
________（48）
A:The key to your problem is that long nap after dinner
B:Or get together with friends for an evening of cards and conversation
C:At first it may be hard for you to go to sleep without taking a pill
D:The next night you will be ready to sleep at an earlier hour
E: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
共用题干
Animal's"Sixth Sense"
A tsunami（海啸）was triggered（引发）by an earthquake in the Indian Ocean in
December,2004.It killed tens of thousands of people in Asia and East Africa.Wild
animals,_________(1),seem to have escaped that terrible tsunami.This
phenomenon adds weight to notions that they possess a"sixth sense"for_________(2),
experts said.
Sri Lankan wildlife officials have said the giant waves that killed over 24,000 people
along the Indian Ocean island's coast clearly_________(3)wild beasts,with no dead
animals found.
"No elephants are dead,not_________(4)a dead rabbit.I think animals can
_________(5)disaster.They have a sixth sense.They know when things are
happening,"H.
D. Ratnayake,deputy director of Sri Lanka's Wildlife Department,said
about one month after the tsunami attack.The_________(6)washed floodwaters up to
2 miles inland at Yala National Park in the ravaged（被毁坏的）southeast, Sri Lanka's
biggest wildlife_________(7)and home to hundreds of wild elephants and several
leopards（豹）.
"There has been_________(8)apparent evidence about dogs barking or birds
migrating before volcanic eruptions（火山爆发）or earthquakes. But it has not been
proven,"said Matthew van Lierop,an animal behavior_________(9)at Johannesburg
Zoo.
"There have been no_________(10)studies because you can't really test it in a
lab or field setting , " he told Reuters. Other authorities concurred（同意）with this
_________(11).
"Wildlife seem to be able to pick up certain_________(12),especially birds…
there are many reports of birds detecting impending（迫近的）disasters , " said Clive
Walker,who has written several books on African wildlife.
Animals_________(13)rely on the known senses such as smell or hearing to
avoid danger such as predators（食肉动物）.
The notion of an animal"sixth sense”一or_________(14)other mythical power一
is an enduring one which the evidence on Sri Lanka's ravaged（荒凉的）coast is likely to
add_________(15).
_________(14)
A:some
B:much
C:many
D:few
Animal's"Sixth Sense"
A tsunami（海啸）was triggered（引发）by an earthquake in the Indian Ocean in
December,2004.It killed tens of thousands of people in Asia and East Africa.Wild
animals,_________(1),seem to have escaped that terrible tsunami.This
phenomenon adds weight to notions that they possess a"sixth sense"for_________(2),
experts said.
Sri Lankan wildlife officials have said the giant waves that killed over 24,000 people
along the Indian Ocean island's coast clearly_________(3)wild beasts,with no dead
animals found.
"No elephants are dead,not_________(4)a dead rabbit.I think animals can
_________(5)disaster.They have a sixth sense.They know when things are
happening,"H.
D. Ratnayake,deputy director of Sri Lanka's Wildlife Department,said
about one month after the tsunami attack.The_________(6)washed floodwaters up to
2 miles inland at Yala National Park in the ravaged（被毁坏的）southeast, Sri Lanka's
biggest wildlife_________(7)and home to hundreds of wild elephants and several
leopards（豹）.
"There has been_________(8)apparent evidence about dogs barking or birds
migrating before volcanic eruptions（火山爆发）or earthquakes. But it has not been
proven,"said Matthew van Lierop,an animal behavior_________(9)at Johannesburg
Zoo.
"There have been no_________(10)studies because you can't really test it in a
lab or field setting , " he told Reuters. Other authorities concurred（同意）with this
_________(11).
"Wildlife seem to be able to pick up certain_________(12),especially birds…
there are many reports of birds detecting impending（迫近的）disasters , " said Clive
Walker,who has written several books on African wildlife.
Animals_________(13)rely on the known senses such as smell or hearing to
avoid danger such as predators（食肉动物）.
The notion of an animal"sixth sense”一or_________(14)other mythical power一
is an enduring one which the evidence on Sri Lanka's ravaged（荒凉的）coast is likely to
add_________(15).
_________(14)
A:some
B:much
C:many
D:few
共用题干
California Gives Green Light to Space Solar Power
Energy beamed down from space is one step closer to reality,now that California has given the green
light to an agreement that would see the Pacific Gas and Electric Company buy 200 megawatts（兆瓦）of power
beamed down from solar-power satellites beginning in 2016.But some major challenges will have to be
overcome if the technology is to be used widely.
A start-up company called Solaren is designing the satellites,which it says will use radio waves to beam
energy down to a receiving station on Earth.
The attraction of collecting solar power in space is the almost uninterrupted sunshine available in geo-
synchronous（与地球同步的）orbit. Earth-based solar cells , by contrast , can only collect sun light during day-
time and when skies are clear.
But space-based solar power must grapple（努力克服）with the high cost per kilogram of launching things in-
to space,says Richard Schwartz of Purdue University in West Lafayette,Indiana."if you're talking about it being
economically viable for power of the Earth,it's a tough go,"he says.
Cal Boerman,Solaren's director of energy services,says the company designed its satellites with a view
to keeping launch costs down."We knew we had to come up with a different,revolutionary design,"he says.
A patent the company has won describes ways to reduce the system's weight,including using inflatable mir-
rors to focus sunlight on solar cells,so a smaller number can collect the same amount of energy.
But using mirrors introduces other challenges,including keeping the solar cells from overheating,says
Schwartz."You have to take care of heat dissipation（散发）because you're now concentrating a lot of energy
in one place,"he says.According to the company's patent,Solaren's solar cells will be connected to radia-
tors to help keep them cool.
Though Boerman says the company believes it can make space-based solar power work,it is not expec-
ting to crowd out other forms of renewable energy.Laws in California and other states require increasing use
of renewable energy in coming years,he points out."To meet those needs,we're going to need all types of
renewable energy sources,"he says.
Solar-power satellites will use radio waves to beam energy down from space.
A:Right
B:Wrong
C:Not mentioned
California Gives Green Light to Space Solar Power
Energy beamed down from space is one step closer to reality,now that California has given the green
light to an agreement that would see the Pacific Gas and Electric Company buy 200 megawatts（兆瓦）of power
beamed down from solar-power satellites beginning in 2016.But some major challenges will have to be
overcome if the technology is to be used widely.
A start-up company called Solaren is designing the satellites,which it says will use radio waves to beam
energy down to a receiving station on Earth.
The attraction of collecting solar power in space is the almost uninterrupted sunshine available in geo-
synchronous（与地球同步的）orbit. Earth-based solar cells , by contrast , can only collect sun light during day-
time and when skies are clear.
But space-based solar power must grapple（努力克服）with the high cost per kilogram of launching things in-
to space,says Richard Schwartz of Purdue University in West Lafayette,Indiana."if you're talking about it being
economically viable for power of the Earth,it's a tough go,"he says.
Cal Boerman,Solaren's director of energy services,says the company designed its satellites with a view
to keeping launch costs down."We knew we had to come up with a different,revolutionary design,"he says.
A patent the company has won describes ways to reduce the system's weight,including using inflatable mir-
rors to focus sunlight on solar cells,so a smaller number can collect the same amount of energy.
But using mirrors introduces other challenges,including keeping the solar cells from overheating,says
Schwartz."You have to take care of heat dissipation（散发）because you're now concentrating a lot of energy
in one place,"he says.According to the company's patent,Solaren's solar cells will be connected to radia-
tors to help keep them cool.
Though Boerman says the company believes it can make space-based solar power work,it is not expec-
ting to crowd out other forms of renewable energy.Laws in California and other states require increasing use
of renewable energy in coming years,he points out."To meet those needs,we're going to need all types of
renewable energy sources,"he says.
Solar-power satellites will use radio waves to beam energy down from space.
A:Right
B:Wrong
C:Not mentioned
共用题干
Ludwig Van Beethoven
Ludwig Van Beethoven,a major composer of the nineteenth century,overcame many personal problems to achieve artistic greatness.
Born in Bonn,Germany,in 1770,he first studied music with the court organist,Gilles van der Eeden.His father was excessively strict and given to heavy drinking.______(46)Appoint-ed deputy court organist to Christian Gottlob Neefe at a surprisingly early age in 1782,Beethoven also played the harpsichord and the viola.In 1792 he was sent to Vienna by his patron,Count Ferdinand Waldstein,to study music under Haydn.
Beethoven remained unmarried.______(47)Continually plagued by ill health,he devel- oped an ear infection which led to his tragic deafness in 1819.
______(48)He completed mature masterpieces of great musical depth:three piano sona- tas,four string quartets,the Missa Solemnis,and the 9th Symphony.He died in 1827.______(49)
Noting that Beethoven often flew into fits of rage,Goethe once said of him,"I am astonished by his talent,but he is unfortunately an altogether untamed personality."______(50)
______(46)
A: Today his music is still being played all over the world.
B: Although Beethoven's personality may have been untamed,his music shows great disci-pline and control,and this is how we remember him best.
C: When his mother died,Beethoven,then a young man,was named guardian of his two younger brothers.
D: His life was marked by a passionate dedication to independence.
E: Because of irregular payments from his publishers and erratic support from his patrons,he was troubled by financial worries throughout his adult life.
F: In spited of this handicap,however,he continued to write music.
Ludwig Van Beethoven
Ludwig Van Beethoven,a major composer of the nineteenth century,overcame many personal problems to achieve artistic greatness.
Born in Bonn,Germany,in 1770,he first studied music with the court organist,Gilles van der Eeden.His father was excessively strict and given to heavy drinking.______(46)Appoint-ed deputy court organist to Christian Gottlob Neefe at a surprisingly early age in 1782,Beethoven also played the harpsichord and the viola.In 1792 he was sent to Vienna by his patron,Count Ferdinand Waldstein,to study music under Haydn.
Beethoven remained unmarried.______(47)Continually plagued by ill health,he devel- oped an ear infection which led to his tragic deafness in 1819.
______(48)He completed mature masterpieces of great musical depth:three piano sona- tas,four string quartets,the Missa Solemnis,and the 9th Symphony.He died in 1827.______(49)
Noting that Beethoven often flew into fits of rage,Goethe once said of him,"I am astonished by his talent,but he is unfortunately an altogether untamed personality."______(50)
______(46)
A: Today his music is still being played all over the world.
B: Although Beethoven's personality may have been untamed,his music shows great disci-pline and control,and this is how we remember him best.
C: When his mother died,Beethoven,then a young man,was named guardian of his two younger brothers.
D: His life was marked by a passionate dedication to independence.
E: Because of irregular payments from his publishers and erratic support from his patrons,he was troubled by financial worries throughout his adult life.
F: In spited of this handicap,however,he continued to write music.
共用题干
Improve Your Memory
To many people advancing age means losing your hair,your waistline and your memory.But is it an inescapable fact that the older you get,the less you remember? Well,as time goes by,we tend to blame age for problems that are not necessarily age-related.
When a teenager can't find her keys,she thinks it's because she's distracted or disorganized, but a 70-year-old blames her memory. In fact,the 70-year-old may have been misplacing things for decades一like we all do from time to time.
In healthy people,memory doesn't deteriorate as quickly as many of us think. According to psychologists,as we age,our memory mechanism isn't broken,it's just different.The brain's processing time slows down over the years,though no one knows exactly why.Recent research suggests that nerve cells lose efficiency and that there's less activity in the part of the brain that decides whether to store information or not.But it's not clear that less activity is worse.A beginning athlete is winded. more easily than a trained athlete.In the same way,as the brain gets more skilled at a task,it spends less energy on it.
There are steps you can take to improve your memory,though you have to work to keep your brain in shape.It's like having a good body. You can't go to the gym once a year and expect to stay in top form.
Some memory enhancement experts suggest using the AM principle.Pay attention to what you want to remember. Then give some meaning to it. We remember things when we focus on them, whether we intend to or not. That helps explain why jingles stick in our minds.They are played on loud,flashy TV commercials.They also use rhyme and music to help us remember better.
Basic organization helps us remember the boring stuff. For example,rather than trying to recall a random list of groceries,we can divide them into categories,such as dairy,meat and produce. For important things like keys and money,we can set up a"forget-me-not"spot where we always keep them.
We can also eat to aid our memory power. Whole grains,fruits and vegetables are excellent sources of glucose,the brain's preferred fuel. Another low-tech way to improve memory is to get adequate rest. Sleep may allow our brain time to encode memories.
Interest in friends,family and hobbies does wonders for our memory.A sense of passion or purpose helps us remember. Memory requires us to pay attention to our lives,allowing us to discover in them everything worth remembering.
Some people tend to have better memories than the rest of us.
A:Right
B:Wrong
C:Not mentioned
Improve Your Memory
To many people advancing age means losing your hair,your waistline and your memory.But is it an inescapable fact that the older you get,the less you remember? Well,as time goes by,we tend to blame age for problems that are not necessarily age-related.
When a teenager can't find her keys,she thinks it's because she's distracted or disorganized, but a 70-year-old blames her memory. In fact,the 70-year-old may have been misplacing things for decades一like we all do from time to time.
In healthy people,memory doesn't deteriorate as quickly as many of us think. According to psychologists,as we age,our memory mechanism isn't broken,it's just different.The brain's processing time slows down over the years,though no one knows exactly why.Recent research suggests that nerve cells lose efficiency and that there's less activity in the part of the brain that decides whether to store information or not.But it's not clear that less activity is worse.A beginning athlete is winded. more easily than a trained athlete.In the same way,as the brain gets more skilled at a task,it spends less energy on it.
There are steps you can take to improve your memory,though you have to work to keep your brain in shape.It's like having a good body. You can't go to the gym once a year and expect to stay in top form.
Some memory enhancement experts suggest using the AM principle.Pay attention to what you want to remember. Then give some meaning to it. We remember things when we focus on them, whether we intend to or not. That helps explain why jingles stick in our minds.They are played on loud,flashy TV commercials.They also use rhyme and music to help us remember better.
Basic organization helps us remember the boring stuff. For example,rather than trying to recall a random list of groceries,we can divide them into categories,such as dairy,meat and produce. For important things like keys and money,we can set up a"forget-me-not"spot where we always keep them.
We can also eat to aid our memory power. Whole grains,fruits and vegetables are excellent sources of glucose,the brain's preferred fuel. Another low-tech way to improve memory is to get adequate rest. Sleep may allow our brain time to encode memories.
Interest in friends,family and hobbies does wonders for our memory.A sense of passion or purpose helps us remember. Memory requires us to pay attention to our lives,allowing us to discover in them everything worth remembering.
Some people tend to have better memories than the rest of us.
A:Right
B:Wrong
C:Not mentioned
The word "acoustic" in the last paragraph has something to do with_____
A.performance.
B.sound.
C.audience.
D.weather.
A.performance.
B.sound.
C.audience.
D.weather.
Certain programs work better for some than for others.Your doctor will be able to tell you which option is best suited for you.
A:alternative
B:alternation
C:detection
D:diagnosis
A:alternative
B:alternation
C:detection
D:diagnosis
共用题干
Obtaining Drinking Water from Air Humidity
Not a plant to be seen,the desert ground is too dry.But the air contains water,and research scientists
have found a. __________
(51)of obtaining drinking water from air humidity."The process we have
developed is based exclusively on renewable energy sources_________(52)thermal solar collectors and
photovoltaic（光电的）cells , ________( 53 ) makes this method completely energy-autonomous. It will
____________( 54 ) function in regions where there is no electrical infrastructure（基础设施）,"says Siegfried
Egner,head of the research team. The principle of the_________(55)is as follows:hygroscopic（吸湿的）
brine（盐水）一saline（含盐的）solution which absorbs moisture一runs down a tower-shaped unit and absorbs
water from the air. It is then sucked__________(56)a tank a few meters off the ground in which a vacuum
prevails.Energy from solar collectors_________(57)up the brine,which is diluted by the water it has
__________ (58).
Because of the vacuum,the boiling point of the liquid is lower than it would be under__________(59)
atmospheric pressure. The evaporated (蒸发的）, non-saline water is condensed and runs down through a
completely filled tube in a controlled manner. The gravity of this water column_______(60)produces the
vacuum and so a vacuum pump is not needed.The reconcentrated brine________(61)down the tower
surface again to absorb moisture from the air.
"The concept is suitable for various water________(62).Single一person units and plants
supplying water to entire hotels are conceivable,"says Egner. Prototypes have been built for_______
(63)system components一air moisture absorption and vacuum evaporation一and the research scientists
have already __________(64)their interplay on a laboratory scale.In a further ________(65)the re-
searchers intend to develop a demonstration facility.
_________(63)
A:both
B:every
C:same
D:either
Obtaining Drinking Water from Air Humidity
Not a plant to be seen,the desert ground is too dry.But the air contains water,and research scientists
have found a. __________
(51)of obtaining drinking water from air humidity."The process we have
developed is based exclusively on renewable energy sources_________(52)thermal solar collectors and
photovoltaic（光电的）cells , ________( 53 ) makes this method completely energy-autonomous. It will
____________( 54 ) function in regions where there is no electrical infrastructure（基础设施）,"says Siegfried
Egner,head of the research team. The principle of the_________(55)is as follows:hygroscopic（吸湿的）
brine（盐水）一saline（含盐的）solution which absorbs moisture一runs down a tower-shaped unit and absorbs
water from the air. It is then sucked__________(56)a tank a few meters off the ground in which a vacuum
prevails.Energy from solar collectors_________(57)up the brine,which is diluted by the water it has
__________ (58).
Because of the vacuum,the boiling point of the liquid is lower than it would be under__________(59)
atmospheric pressure. The evaporated (蒸发的）, non-saline water is condensed and runs down through a
completely filled tube in a controlled manner. The gravity of this water column_______(60)produces the
vacuum and so a vacuum pump is not needed.The reconcentrated brine________(61)down the tower
surface again to absorb moisture from the air.
"The concept is suitable for various water________(62).Single一person units and plants
supplying water to entire hotels are conceivable,"says Egner. Prototypes have been built for_______
(63)system components一air moisture absorption and vacuum evaporation一and the research scientists
have already __________(64)their interplay on a laboratory scale.In a further ________(65)the re-
searchers intend to develop a demonstration facility.
_________(63)
A:both
B:every
C:same
D:either