搜题
A.small number of firms have ceased trading.
A:completed
B:finished
C:fulfilled
D:stopped
A:completed
B:finished
C:fulfilled
D:stopped
共用题干
第二篇
Crystal Ear
One day a friend asked my wife Jill if I wanted a hearing aid."He certainly does,"
replied Jill.After hearing about a remarkable new product,Jill finally got up the nerve to
ask me if I'd ever thought about getting a hearing aid."No way,"I said."It would make me
look 20 years older.""No,no,"she replied."This is entirely different.It's Crystal Ear!"
Jill was right. Crystal Ear is different一not the old-styled body worn or over-the-ear aid,
but an advanced personal sound system so small that it's like contacts（隐形眼镜）for your
ears.And Crystal Ear is super-sensitive and powerlul,too.You will hear sounds your ears
have been missing for years.Crystal Ear will make speech louder,and the sound is pure
and natural.
I couldn't believe how tiny it is.It is smaller than the tip of my little finger and it's almost
invisible when worn. There are no wires,no behind-the-ear device. Put it in your ear and
its ready-to-wear mold（形状）fits comfortably. Since it's not too loud or too tight , you
may even forget that you're wearing it!Use it at work or at play.And if your hearing
problem is worse in certain situations,use Crystal Ear only when you need it.
Hearing loss,which occurs typically prior to teenage years,progresses throughout
one's lifetime.Although hearing loss is now the world's number one health problem,nearly
90 percent of people suffering hearing loss choose to leave the problem untreated.For
many millions,treating hearing loss in a conventional way can involve numerous office
visits,expensive testing and adjustments to fit your ear. Thanks to Crystal Ear,the
"sound solution"is now convenient.Almost 90 percent of people with mild hearing loss,
and millions more with just a little hearing drop-off（下降）,can be dramatically helped with
Crystal Ear. Moreover,its superior design is energy-efficient,so batteries can last
months.Crystal Ear is now available to help these people treat their hearing loss with a
small hearing amplifier（放大器）.
According to the passage,hearing loss is
A:only a minor health problem.
B:the world's most common health problem.
C:merely a teenage disease.
D:an incurable disease.
第二篇
Crystal Ear
One day a friend asked my wife Jill if I wanted a hearing aid."He certainly does,"
replied Jill.After hearing about a remarkable new product,Jill finally got up the nerve to
ask me if I'd ever thought about getting a hearing aid."No way,"I said."It would make me
look 20 years older.""No,no,"she replied."This is entirely different.It's Crystal Ear!"
Jill was right. Crystal Ear is different一not the old-styled body worn or over-the-ear aid,
but an advanced personal sound system so small that it's like contacts（隐形眼镜）for your
ears.And Crystal Ear is super-sensitive and powerlul,too.You will hear sounds your ears
have been missing for years.Crystal Ear will make speech louder,and the sound is pure
and natural.
I couldn't believe how tiny it is.It is smaller than the tip of my little finger and it's almost
invisible when worn. There are no wires,no behind-the-ear device. Put it in your ear and
its ready-to-wear mold（形状）fits comfortably. Since it's not too loud or too tight , you
may even forget that you're wearing it!Use it at work or at play.And if your hearing
problem is worse in certain situations,use Crystal Ear only when you need it.
Hearing loss,which occurs typically prior to teenage years,progresses throughout
one's lifetime.Although hearing loss is now the world's number one health problem,nearly
90 percent of people suffering hearing loss choose to leave the problem untreated.For
many millions,treating hearing loss in a conventional way can involve numerous office
visits,expensive testing and adjustments to fit your ear. Thanks to Crystal Ear,the
"sound solution"is now convenient.Almost 90 percent of people with mild hearing loss,
and millions more with just a little hearing drop-off（下降）,can be dramatically helped with
Crystal Ear. Moreover,its superior design is energy-efficient,so batteries can last
months.Crystal Ear is now available to help these people treat their hearing loss with a
small hearing amplifier（放大器）.
According to the passage,hearing loss is
A:only a minor health problem.
B:the world's most common health problem.
C:merely a teenage disease.
D:an incurable disease.
The revelation of his past led to his resignation.
A.imagination
B. confirmation
C.recall
D. disclosure
A.imagination
B. confirmation
C.recall
D. disclosure
共用题干
Batteries Built by Viruses
What do chicken pox,the common cold,the flu,and AIDS have in common?They're all diseases caused by viruses,tiny microorganisms that can pass from person to person. It's no wonder that when most people think about viruses,finding ways to steer clear of viruses is what's on people's minds.
Not everyone runs from the tiny disease carriers,though. In Cambridge,Massachu- setts,scientists have discovered that some viruses can be helpful in an unusual way. They are putting viruses to work,teaching them to build some of the world's smallest rechargeable batteries.
Viruses and batteries may seem like an unusual pair,but they're not so strange for engi-neer Angela Beicher,who first came up with the idea. At the Massachusetts Institute of
Technology(MIT)in Cambridge,she and her collaborators bring together different areas of science in new ways.In the case of the virus-built batteries,the scientists combine what they know about biology,technology and production techniques.
Beicher's team includes Paula Hammond,who helps put together the tiny batteries,and
Yet-Ming Chiang,an expert on how to store energy in the form of a battery.“We're working on things we traditionally don't associate with nature，”says Hammond.
Many batteries are already pretty small. You can hold A,C and D batteries in your hand. The coin-like batteries that power watches are often smaller than a penny. However, every year,new electronic devices like personal music players or cell phones get smaller than the year before. As these devices shrink,ordinary batteries won't be small enough to fit in-side.
The ideal battery will store a lot of energy in a small package. Right now,Belcher's model battery,a metallic disk completely built by viruses,looks like a regular watch battery. But inside,its components are very small一so tiny you can only see them with a powerful microscope.
How small are these battery parts?To get some idea of the size,pluck one hair from your head. Place your hair on a piece of white paper and try to see how wide your hair is一 pretty thin,right?Although the width of each person's hair is a bit different,you could probably fit about 10 of these virus-built battery parts,side to side,across one hair. These micro-batteries may change the way we look at viruses.
How tiny is one battery part?
A: Its width is one tenth of a hair.
B: It equals the width of a hair.
C: It is as thin as a piece of paper.
D: Its width is too tiny to measure.
Batteries Built by Viruses
What do chicken pox,the common cold,the flu,and AIDS have in common?They're all diseases caused by viruses,tiny microorganisms that can pass from person to person. It's no wonder that when most people think about viruses,finding ways to steer clear of viruses is what's on people's minds.
Not everyone runs from the tiny disease carriers,though. In Cambridge,Massachu- setts,scientists have discovered that some viruses can be helpful in an unusual way. They are putting viruses to work,teaching them to build some of the world's smallest rechargeable batteries.
Viruses and batteries may seem like an unusual pair,but they're not so strange for engi-neer Angela Beicher,who first came up with the idea. At the Massachusetts Institute of
Technology(MIT)in Cambridge,she and her collaborators bring together different areas of science in new ways.In the case of the virus-built batteries,the scientists combine what they know about biology,technology and production techniques.
Beicher's team includes Paula Hammond,who helps put together the tiny batteries,and
Yet-Ming Chiang,an expert on how to store energy in the form of a battery.“We're working on things we traditionally don't associate with nature，”says Hammond.
Many batteries are already pretty small. You can hold A,C and D batteries in your hand. The coin-like batteries that power watches are often smaller than a penny. However, every year,new electronic devices like personal music players or cell phones get smaller than the year before. As these devices shrink,ordinary batteries won't be small enough to fit in-side.
The ideal battery will store a lot of energy in a small package. Right now,Belcher's model battery,a metallic disk completely built by viruses,looks like a regular watch battery. But inside,its components are very small一so tiny you can only see them with a powerful microscope.
How small are these battery parts?To get some idea of the size,pluck one hair from your head. Place your hair on a piece of white paper and try to see how wide your hair is一 pretty thin,right?Although the width of each person's hair is a bit different,you could probably fit about 10 of these virus-built battery parts,side to side,across one hair. These micro-batteries may change the way we look at viruses.
How tiny is one battery part?
A: Its width is one tenth of a hair.
B: It equals the width of a hair.
C: It is as thin as a piece of paper.
D: Its width is too tiny to measure.
共用题干
Electronic Mail
During the past few years,scientists all over the world have suddenly found themselves pro-ductively engaged in task they once spent their lives avoiding—writing,any kind of writing,but particularly letter writing. Encouraged by electronic mail's surprisingly high speed,convenience and economy,people who never before touched the stuff are regularly,skillfully,even cheerfully tapping out a great deal of correspondence.
Electronic networks,woven into the fabric of scientific communication these days,are the route to colleagues in distant countries,shared data,bulletin boards and electronic journals.Any-one with a personal computer,a modern and the software to link computers over telephone lines can sign on.An estimated five million scientists have done so with more joining every day,most of them communicating through a bundle of interconnected domestic and foreign routes known col-lectively as the Internet,or net.
E-mail is starting to edge out the fax,the telephone,overnight mail,and of course,land mail.It shrinks time and distance between scientific collaborators,in part because it is conven-iently asynchronous（异步的）( Writer can type while their colleagues across time zones sleep; their message will be waiting.).If it is not yet speeding discoveries,it is certainly accelerating communication.
Jeremy Bernstein,the physicist and science writer,once called E-mail the physicist's umbili-cal cord（脐带）.Later other people,too,have been discovering its connective virtues. Physi-cists are using it;college students are using it;everybody is using it;and as a sign that it has come of age,the New Yorker has celebrated its liberating presence with a cartoon—an apprecia-tive dog seated at a keyboard,saying happily,“on the Internet,nobody knows you're a dog.”
Why is a dog sitting before a computer keyboard in a cartoon published by New Yorkers?
A: Even dogs are interested in the computer.
B: E-mail has become very popular.
C: Dogs are liberated from their usual duties.
D: E-mai deprives dogs of their owners' love.
Electronic Mail
During the past few years,scientists all over the world have suddenly found themselves pro-ductively engaged in task they once spent their lives avoiding—writing,any kind of writing,but particularly letter writing. Encouraged by electronic mail's surprisingly high speed,convenience and economy,people who never before touched the stuff are regularly,skillfully,even cheerfully tapping out a great deal of correspondence.
Electronic networks,woven into the fabric of scientific communication these days,are the route to colleagues in distant countries,shared data,bulletin boards and electronic journals.Any-one with a personal computer,a modern and the software to link computers over telephone lines can sign on.An estimated five million scientists have done so with more joining every day,most of them communicating through a bundle of interconnected domestic and foreign routes known col-lectively as the Internet,or net.
E-mail is starting to edge out the fax,the telephone,overnight mail,and of course,land mail.It shrinks time and distance between scientific collaborators,in part because it is conven-iently asynchronous（异步的）( Writer can type while their colleagues across time zones sleep; their message will be waiting.).If it is not yet speeding discoveries,it is certainly accelerating communication.
Jeremy Bernstein,the physicist and science writer,once called E-mail the physicist's umbili-cal cord（脐带）.Later other people,too,have been discovering its connective virtues. Physi-cists are using it;college students are using it;everybody is using it;and as a sign that it has come of age,the New Yorker has celebrated its liberating presence with a cartoon—an apprecia-tive dog seated at a keyboard,saying happily,“on the Internet,nobody knows you're a dog.”
Why is a dog sitting before a computer keyboard in a cartoon published by New Yorkers?
A: Even dogs are interested in the computer.
B: E-mail has become very popular.
C: Dogs are liberated from their usual duties.
D: E-mai deprives dogs of their owners' love.
共用题干
第一篇
Arctic Melt
Earth’s North and South Poles are famous for being cold and icy.Last year,however,the amnount of ice
in the Arctic Ocean（北冰洋）fell to a record low.
Normally,ice builds in Arctic waters around the North Pole each winter and shrinks（缩小）during the
summer. But for many years,the amount of ice left by the end of summer has been declining.
Since 1979,each decade has seen an 11.4 percent drop in end?of-summer ice cover. Between 1981 and
2000,ice in the Arctic lost 22 percent of its thickness,becoming I.13 meters thinner.
Last summer,Arctic sea ice reached its thinnest levels yet.By the end of summer 2007,the ice had
shrunk to cover just 4.2 million square kilometers.That's 38 percent less area than the average cover at that
time of year. And it's a very large 23 percent below the previous record low,which was set just 2 years ago.
This continuing trend has made scientists concerned.
There may be several reasons for the ice melt, says Jinlun Zhang, an oceanographer（海洋学家）at the
University of Washington at Seattle.Unusually strong winds blew through the Arctic last summer. The winds
pushed much of the ice out of the central Arctic,leaving a large area of thin ice and open water.
Scientists also suspect that fewer clouds cover the Arctic now than in the past.Clearer skies allow more
sunlight to reach the ocean.The extra heat warms both the water and the atmosphere.In parts of the Arctic
Ocean last year,surface temperatures were 3.5℃warmer than average and 1.5℃warmer than the previous
record high.
With both air and water getting warmer,the ice is melting from both above and below. In some parts of
the Beaufort Sea,north of Alaska and western Canada,ice that measured 3.3 meters thick at the beginning
of the summer measured just 50 centimeters by season's end.
The new measurements suggest that melting is far more severe than scientists have seen by just looking
at ice covcrfrom above,says Donald K. Perovich,a geophysicist at the U.S.Army Cold Regions Research
and Engineering Laboratory in Hanover,N.H.
Some scientists fear that the Arctic is stuck in a warming trend from which it may never recover.
The Beaufort Sea mentioned in Paragraph 7 is an example to show_________.
A:how acetirate the new measurements are
B:how thick the ice is in it
C:how serious the problem of the ice melt in the Arctic is
D:how dangerous it is to travel to it
第一篇
Arctic Melt
Earth’s North and South Poles are famous for being cold and icy.Last year,however,the amnount of ice
in the Arctic Ocean（北冰洋）fell to a record low.
Normally,ice builds in Arctic waters around the North Pole each winter and shrinks（缩小）during the
summer. But for many years,the amount of ice left by the end of summer has been declining.
Since 1979,each decade has seen an 11.4 percent drop in end?of-summer ice cover. Between 1981 and
2000,ice in the Arctic lost 22 percent of its thickness,becoming I.13 meters thinner.
Last summer,Arctic sea ice reached its thinnest levels yet.By the end of summer 2007,the ice had
shrunk to cover just 4.2 million square kilometers.That's 38 percent less area than the average cover at that
time of year. And it's a very large 23 percent below the previous record low,which was set just 2 years ago.
This continuing trend has made scientists concerned.
There may be several reasons for the ice melt, says Jinlun Zhang, an oceanographer（海洋学家）at the
University of Washington at Seattle.Unusually strong winds blew through the Arctic last summer. The winds
pushed much of the ice out of the central Arctic,leaving a large area of thin ice and open water.
Scientists also suspect that fewer clouds cover the Arctic now than in the past.Clearer skies allow more
sunlight to reach the ocean.The extra heat warms both the water and the atmosphere.In parts of the Arctic
Ocean last year,surface temperatures were 3.5℃warmer than average and 1.5℃warmer than the previous
record high.
With both air and water getting warmer,the ice is melting from both above and below. In some parts of
the Beaufort Sea,north of Alaska and western Canada,ice that measured 3.3 meters thick at the beginning
of the summer measured just 50 centimeters by season's end.
The new measurements suggest that melting is far more severe than scientists have seen by just looking
at ice covcrfrom above,says Donald K. Perovich,a geophysicist at the U.S.Army Cold Regions Research
and Engineering Laboratory in Hanover,N.H.
Some scientists fear that the Arctic is stuck in a warming trend from which it may never recover.
The Beaufort Sea mentioned in Paragraph 7 is an example to show_________.
A:how acetirate the new measurements are
B:how thick the ice is in it
C:how serious the problem of the ice melt in the Arctic is
D:how dangerous it is to travel to it
共用题干
Wrongly Convicted Man and His Accuser Tell Their Story
NEW YORK,NY,January 5,2010.St.Martin's Press has announced the release of the paperback edition of Picking Cotton,a remarkable true story of what novelist John Grisham calls an"account of violence,rage,redemption（救赎）,and,ultimately forgiveness".
The story began in 1987,in Burlington,North Carolina,with the rape of a young white college student named Jennifer Thompson.During her ordeal,Thompson swore to herself that she would never forget the face of her rapist,a man who climbed through the window of her apartment and assaulted her brutally.______(46)When the police asked her if she could identify the assailant（袭击者）from a book of mug shots,she picked one that she was sure was correct,and later she identified the same man in a lineup.
Based on her convincing eyewitness testimony,a 22-year-old black man named Ronald Cotton was sentenced to prison for two life terms.Cotton's lawyer appealed the decision,and by the time of the appeals hearing, evidence had come to light suggesting that the real rapist might have been a man who looked very like Cotton,an imprisoned criminal named Bobby Poole.______(47)Jennifer Thompson looked at both men face to face,and once again said that Ronald Cotton was the one who raped her.
Eleven years later, DNA evidence completely exonerated（证明……清白）Cotton and just as unequivocally（明确地）convicted Poole, who confessed to the crime.______ (48) "The man I was so sure I had never seen in my life was the man who was inches from my throat,who raped me,who hurt me, who took my spirit away,who robbed me of my soul,"she wrote."And the man I had identified so surely on so many occasions was absolutely innocent."______(49)Remarkably both were able to put this tragedy behind them,overcome the racial barrier that divided them,and write a book,which they have subtitled"Our memoir of injustice and redemption".
Nevertheless,Thompson says,she still lives"with constant pain that my profound mistake cost him so dearly.______(50)"
______ (50)
A:Jennifer Thompson decided to meet Cotton and apologize to him personally.
B:Many criminals are sent to prison on the basis of accurate testimony by eyewitnesses.
C:I cannot begin to imagine what would have happened had my mistaken identification occurred in a capital case.
D:Another trial was held.
E:Thompson was shocked and devastated.
F:During the attack,she made an effort to memorize every detail of his face,looking for scars,tattoos（纹身）,or other identifying marks.
Wrongly Convicted Man and His Accuser Tell Their Story
NEW YORK,NY,January 5,2010.St.Martin's Press has announced the release of the paperback edition of Picking Cotton,a remarkable true story of what novelist John Grisham calls an"account of violence,rage,redemption（救赎）,and,ultimately forgiveness".
The story began in 1987,in Burlington,North Carolina,with the rape of a young white college student named Jennifer Thompson.During her ordeal,Thompson swore to herself that she would never forget the face of her rapist,a man who climbed through the window of her apartment and assaulted her brutally.______(46)When the police asked her if she could identify the assailant（袭击者）from a book of mug shots,she picked one that she was sure was correct,and later she identified the same man in a lineup.
Based on her convincing eyewitness testimony,a 22-year-old black man named Ronald Cotton was sentenced to prison for two life terms.Cotton's lawyer appealed the decision,and by the time of the appeals hearing, evidence had come to light suggesting that the real rapist might have been a man who looked very like Cotton,an imprisoned criminal named Bobby Poole.______(47)Jennifer Thompson looked at both men face to face,and once again said that Ronald Cotton was the one who raped her.
Eleven years later, DNA evidence completely exonerated（证明……清白）Cotton and just as unequivocally（明确地）convicted Poole, who confessed to the crime.______ (48) "The man I was so sure I had never seen in my life was the man who was inches from my throat,who raped me,who hurt me, who took my spirit away,who robbed me of my soul,"she wrote."And the man I had identified so surely on so many occasions was absolutely innocent."______(49)Remarkably both were able to put this tragedy behind them,overcome the racial barrier that divided them,and write a book,which they have subtitled"Our memoir of injustice and redemption".
Nevertheless,Thompson says,she still lives"with constant pain that my profound mistake cost him so dearly.______(50)"
______ (50)
A:Jennifer Thompson decided to meet Cotton and apologize to him personally.
B:Many criminals are sent to prison on the basis of accurate testimony by eyewitnesses.
C:I cannot begin to imagine what would have happened had my mistaken identification occurred in a capital case.
D:Another trial was held.
E:Thompson was shocked and devastated.
F:During the attack,she made an effort to memorize every detail of his face,looking for scars,tattoos（纹身）,or other identifying marks.
I grabbed his arm and made him turn to look at me.
A:threw
B:seized
C:broke
D:stretched
A:threw
B:seized
C:broke
D:stretched
共用题干
More Than 8 Hours Sleep Too Much of a Good Thing
1 Although the dangers of too little sleep are widely known,new research suggests that people who sleep too much may also suffer the consequences.
2 Investigators at the University of California in San Diego found that people who clock up 9 or 10 hours each weeknight appear to have more trouble falling and staying asleep,as well as a number of other sleep problems,than people who sleep 8 hours a night. People who slept only 7 hours each night also said they had more trouble falling asleep and feeling re-freshed after a night's sleep than 8-hour sleepers.
3 These findings,which DL Daniel Kripke reported in the journal Psychosomatic Medicine,demonstrate that people who want to get a good night's rest may not need to set aside more than 8 hours a night.He added that“it might be a good idea” for people who sleep more than 8 hours each night to consider reducing the amount of time they spend in bed,but cau-tioned that more research is needed to confirm this.
4 Previous studies have shown the potential dangers of chronic shortages of sleep一for instance,one report demonstrated that people who habitually sleep less than 7 hours each night have a higher risk of dying within a fixed period than people who sleep more.
5 For the current report,Kripke reviewed the responses of 1,004 adults to sleep ques-tionaires,in which participants indicated how much they slept during the week and whether they experienced any sleep problems. Sleep problems included waking in the middle of the night,arising early in the morning and being unable to fall back to sleep,and having fatigue interfere with day-to-day functioning.
6 Kripke found that people who slept between 9 and 10 hours each night were more like-ly to report experiencing each sleep problem than people who slept 8 hours. In an interview, Kripke noted that long sleepers may struggle to get rest at night simply because they spend too much time in bed. As evidence,he added that one way to help insomnia is to spend less time in bed.“It stands to reason that if a person spends too long a time in bed,then they'll spend a higher percentage of time awake.”he said.
Paragraph 4______
A: Kripke's Research
B: Dangers of Habitual Shortages of Sleep
C: Criticism on Kripke's Report
D: A way of Overcoming Insomnia
E: Sleep Problems of Long and Short Sleepers
F: Classification of Sleep Problems
More Than 8 Hours Sleep Too Much of a Good Thing
1 Although the dangers of too little sleep are widely known,new research suggests that people who sleep too much may also suffer the consequences.
2 Investigators at the University of California in San Diego found that people who clock up 9 or 10 hours each weeknight appear to have more trouble falling and staying asleep,as well as a number of other sleep problems,than people who sleep 8 hours a night. People who slept only 7 hours each night also said they had more trouble falling asleep and feeling re-freshed after a night's sleep than 8-hour sleepers.
3 These findings,which DL Daniel Kripke reported in the journal Psychosomatic Medicine,demonstrate that people who want to get a good night's rest may not need to set aside more than 8 hours a night.He added that“it might be a good idea” for people who sleep more than 8 hours each night to consider reducing the amount of time they spend in bed,but cau-tioned that more research is needed to confirm this.
4 Previous studies have shown the potential dangers of chronic shortages of sleep一for instance,one report demonstrated that people who habitually sleep less than 7 hours each night have a higher risk of dying within a fixed period than people who sleep more.
5 For the current report,Kripke reviewed the responses of 1,004 adults to sleep ques-tionaires,in which participants indicated how much they slept during the week and whether they experienced any sleep problems. Sleep problems included waking in the middle of the night,arising early in the morning and being unable to fall back to sleep,and having fatigue interfere with day-to-day functioning.
6 Kripke found that people who slept between 9 and 10 hours each night were more like-ly to report experiencing each sleep problem than people who slept 8 hours. In an interview, Kripke noted that long sleepers may struggle to get rest at night simply because they spend too much time in bed. As evidence,he added that one way to help insomnia is to spend less time in bed.“It stands to reason that if a person spends too long a time in bed,then they'll spend a higher percentage of time awake.”he said.
Paragraph 4______
A: Kripke's Research
B: Dangers of Habitual Shortages of Sleep
C: Criticism on Kripke's Report
D: A way of Overcoming Insomnia
E: Sleep Problems of Long and Short Sleepers
F: Classification of Sleep Problems
共用题干
Smoking can Increase Depressive Symptoms in Teens
While some teenagers may use cigarettes to "self-medicate"（自我治疗）against the blues（忧郁）,sci-
entists at the University of Toronto and the University of Montreal have found that smoking may actually
______________
(51)depressive symptoms in some teens.
"This observational study is one of the few to examine the perceived ______________(52)benefits of
smoking among teens,"says lead researcher Michael Chaiton,a research associate at the Ontario Tobacco
Research Unit of the University of Toronto."_______________(53)cigarettes may appear to have self-medicating
effects or to improve mood,in the long_______________(54)we found that teens who started to smoke reported
higher depressive symptoms."
As part of the study,some 662 high school teenagers completed up to 20 questionnaires about their use
of cigarettes to ______________
(55)mood.Secondary schools were selected to provide a mix of French and
English participants,urban and rural schools,and schools ______________(56)in high,moderate and low so-
cioeconomic neighbourhoods.
Participants were divided into three
______________ (57):never smokers;smokers who did not use ciga-
rettes to self-medicate,improve mood or physical
______________ (58);smokers who used cigarettes to self-
medicate.Depressive symptoms were measured using a scale that asked how often participants felt too tired
to do things;had
______________ (59)going to sleep or staying asleep;felt unhappy,sad,or depressed;felt
hopeless about the future;felt anxious or tense;and worried too much about things.
" Smokers who used cigarettes as mood
______________( 60 ) had higher risks of elevated（提升）depres-
sive symptoms______________ (61)teens who had never smoked,"says co-researcher Jennifer O'Loughlin,a
professor at the University of Montreal Department of Social and Preventive Medicine."Our study found that
teen smokers who reported emotional benefits from smoking are_______________(62)higher risk of developing
depressive symptoms."
The______________ (63)between depression and'smoking exists______________(64)among teens that use
cigarettes to feel better."It's ______________(65)to emphasize that depressive symptom scores were higher
among teenagers who reported emotional benefits from smoking after they began to smoke,"says Dr. Chaiton.
_________(57)
A:groups
B:sets
C:species
D:versions
Smoking can Increase Depressive Symptoms in Teens
While some teenagers may use cigarettes to "self-medicate"（自我治疗）against the blues（忧郁）,sci-
entists at the University of Toronto and the University of Montreal have found that smoking may actually
______________
(51)depressive symptoms in some teens.
"This observational study is one of the few to examine the perceived ______________(52)benefits of
smoking among teens,"says lead researcher Michael Chaiton,a research associate at the Ontario Tobacco
Research Unit of the University of Toronto."_______________(53)cigarettes may appear to have self-medicating
effects or to improve mood,in the long_______________(54)we found that teens who started to smoke reported
higher depressive symptoms."
As part of the study,some 662 high school teenagers completed up to 20 questionnaires about their use
of cigarettes to ______________
(55)mood.Secondary schools were selected to provide a mix of French and
English participants,urban and rural schools,and schools ______________(56)in high,moderate and low so-
cioeconomic neighbourhoods.
Participants were divided into three
______________ (57):never smokers;smokers who did not use ciga-
rettes to self-medicate,improve mood or physical
______________ (58);smokers who used cigarettes to self-
medicate.Depressive symptoms were measured using a scale that asked how often participants felt too tired
to do things;had
______________ (59)going to sleep or staying asleep;felt unhappy,sad,or depressed;felt
hopeless about the future;felt anxious or tense;and worried too much about things.
" Smokers who used cigarettes as mood
______________( 60 ) had higher risks of elevated（提升）depres-
sive symptoms______________ (61)teens who had never smoked,"says co-researcher Jennifer O'Loughlin,a
professor at the University of Montreal Department of Social and Preventive Medicine."Our study found that
teen smokers who reported emotional benefits from smoking are_______________(62)higher risk of developing
depressive symptoms."
The______________ (63)between depression and'smoking exists______________(64)among teens that use
cigarettes to feel better."It's ______________(65)to emphasize that depressive symptom scores were higher
among teenagers who reported emotional benefits from smoking after they began to smoke,"says Dr. Chaiton.
_________(57)
A:groups
B:sets
C:species
D:versions
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” for2 ,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,not4a dead rabbit. I think animals can5 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. The6washed floodwaters up to 2 miles inland at Yala National Park in the ravaged（被 毁坏的）southeast, Sri Lanka's biggest wildlife7and home to hundreds of wild elephants and several leopards（豹）.
“There has been a lot of8 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 no10studies because you can't really test it in a lab or field setting , ” he told Reuters. Other authorities concurred（同意）with this11.
“Wildlife seem to be able to pick up certain12 ,especially birds…there are many re- ports of birds detecting impending（迫近的）disasters , ” said Clive Walker , who has written several books on African wildlife.
Animals13 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or14other mythical power一is an enduring one which the evidence on Sri Lanka's ravaged coast is likely to add15.
5._________
A: feel
B: see
C: hear
D: sense
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” for2 ,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,not4a dead rabbit. I think animals can5 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. The6washed floodwaters up to 2 miles inland at Yala National Park in the ravaged（被 毁坏的）southeast, Sri Lanka's biggest wildlife7and home to hundreds of wild elephants and several leopards（豹）.
“There has been a lot of8 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 no10studies because you can't really test it in a lab or field setting , ” he told Reuters. Other authorities concurred（同意）with this11.
“Wildlife seem to be able to pick up certain12 ,especially birds…there are many re- ports of birds detecting impending（迫近的）disasters , ” said Clive Walker , who has written several books on African wildlife.
Animals13 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or14other mythical power一is an enduring one which the evidence on Sri Lanka's ravaged coast is likely to add15.
5._________
A: feel
B: see
C: hear
D: sense
共用题干
Please Fasten Your Seatbelts
Severe turbulence（湍流）can kill aircraft passengers. Now,in test flights over the Rocky
Mountains , NASA（美国航空航天局）engineers have successfully detected clear-air turbulence up to 10 seconds before an aircraft hits it.
Clear-air turbulence often catches pilots by surprise.Invisible to radar,it is difficult to forecast and can hurl（用力抛出去）passengers about the cabin. In December 1 997 , one passenger died and a hundred others were injured when unexpected rough air caused a United Airlines flight over the Pacific to drop 300 meters in a few seconds.
However,passengers can avoid serious injury by fastening their seatbelts.“It is the only antidote（对策）for this sort of thing,”says Rod Bogue,project manager at NASA's Dryden Flight
Research Center in Edwards,California.
The centre's new turbulence detector is based on lidar,or laser radar. Laser pulses are sent ahead of the plane and these are then reflected back by particles in the air. The technique depends on the Doppler effect.The wavelength of the light shifts according to the speed at which the particles are approaching. In calm air,the speed equals the plane's airspeed.But as the particles swirl（打漩）in rough air,their speed of approach increases or decreases rapidly .The rate of change in speed corresponds to the severity（激烈程度）of the turbulence.
In a series of tests that began last month,a research jet flew repeatedly into disturbed air over the mountain ridges（山脉）near Pueblo , Colorado. The lidar detector spotted turbulence between 3 and 8 kilometers ahead,and its forecasts of strength and duration corresponded closely with the turbulence that the plane encountered.
Bogue says that he had“a comfortable amount of time”to fasten his seatbelt. The researchers are planning to improve the lidar's range with a more powerful beam.The system could be installed on commercial aircraft in the next few years.
What does“clear-air turbulence”in Paragraph 1 probably mean?
A: A not very rough storm.
B: Unexpected disturbed air.
C: A kind of visible storm.
D: A storm over mountain ridges.
Please Fasten Your Seatbelts
Severe turbulence（湍流）can kill aircraft passengers. Now,in test flights over the Rocky
Mountains , NASA（美国航空航天局）engineers have successfully detected clear-air turbulence up to 10 seconds before an aircraft hits it.
Clear-air turbulence often catches pilots by surprise.Invisible to radar,it is difficult to forecast and can hurl（用力抛出去）passengers about the cabin. In December 1 997 , one passenger died and a hundred others were injured when unexpected rough air caused a United Airlines flight over the Pacific to drop 300 meters in a few seconds.
However,passengers can avoid serious injury by fastening their seatbelts.“It is the only antidote（对策）for this sort of thing,”says Rod Bogue,project manager at NASA's Dryden Flight
Research Center in Edwards,California.
The centre's new turbulence detector is based on lidar,or laser radar. Laser pulses are sent ahead of the plane and these are then reflected back by particles in the air. The technique depends on the Doppler effect.The wavelength of the light shifts according to the speed at which the particles are approaching. In calm air,the speed equals the plane's airspeed.But as the particles swirl（打漩）in rough air,their speed of approach increases or decreases rapidly .The rate of change in speed corresponds to the severity（激烈程度）of the turbulence.
In a series of tests that began last month,a research jet flew repeatedly into disturbed air over the mountain ridges（山脉）near Pueblo , Colorado. The lidar detector spotted turbulence between 3 and 8 kilometers ahead,and its forecasts of strength and duration corresponded closely with the turbulence that the plane encountered.
Bogue says that he had“a comfortable amount of time”to fasten his seatbelt. The researchers are planning to improve the lidar's range with a more powerful beam.The system could be installed on commercial aircraft in the next few years.
What does“clear-air turbulence”in Paragraph 1 probably mean?
A: A not very rough storm.
B: Unexpected disturbed air.
C: A kind of visible storm.
D: A storm over mountain ridges.
共用题干
American Families
1 Despite social and economic differences among Americans,many American families have certain characteristics in common.Both the husband and wife were born in the United States,and their forefathers came from Europe.They have completed high school,and they belong to the middle class.They have a car, a television set,a washing machine,a refrigerator,a telephone,etc.They own their own home and spend about 55%of their income for housing and food.Clothing accounts for almost 10%of their income,medical care 6%,transportation 8%and taxes 15%.The rest of their income is used for such items as insurance, savings,gifts,and recreation.
2 Most families consist of a mother,a father,and,at most,two children living at home.There may be relatives-grandparents,aunts,uncles,cousins living in the same community,but American families usually maintain separate households.This family structure is known as the"nuclear family".It is unusual. for members of the family other than the husband,wife,and children to live together.
3 Marriage in the United States is considered a matte,r of individual responsibility and decision.Young people frequently fall in love and many even if their parents disagree.American marriages are usually based on romantic love,rather than on social class,education,or religion.
4 After their marriage the young couple is free to decide where to live and when to start a family.Most young couples set up their own household immediately.In the early 1970s only 15%of all married couples were not living on their own-independently and by themselves.Most married people practise some kind of birth control.They plan the number of children they are going to have and when their children will be born. The practice of limiting the size of families has general approval.The birth rate has been declining steadily in recent years.
Paragraph 2______
A:Post-marriage Life
B:The Birih Rate in the Early 1970s
C:Usual Family Structure of American Families
D:Features in Common in Many American Families
E:Marriage Concept in the USA
F:In Marriages Usually Romantic Love Is as Important as Social Class,Education,or Religion
American Families
1 Despite social and economic differences among Americans,many American families have certain characteristics in common.Both the husband and wife were born in the United States,and their forefathers came from Europe.They have completed high school,and they belong to the middle class.They have a car, a television set,a washing machine,a refrigerator,a telephone,etc.They own their own home and spend about 55%of their income for housing and food.Clothing accounts for almost 10%of their income,medical care 6%,transportation 8%and taxes 15%.The rest of their income is used for such items as insurance, savings,gifts,and recreation.
2 Most families consist of a mother,a father,and,at most,two children living at home.There may be relatives-grandparents,aunts,uncles,cousins living in the same community,but American families usually maintain separate households.This family structure is known as the"nuclear family".It is unusual. for members of the family other than the husband,wife,and children to live together.
3 Marriage in the United States is considered a matte,r of individual responsibility and decision.Young people frequently fall in love and many even if their parents disagree.American marriages are usually based on romantic love,rather than on social class,education,or religion.
4 After their marriage the young couple is free to decide where to live and when to start a family.Most young couples set up their own household immediately.In the early 1970s only 15%of all married couples were not living on their own-independently and by themselves.Most married people practise some kind of birth control.They plan the number of children they are going to have and when their children will be born. The practice of limiting the size of families has general approval.The birth rate has been declining steadily in recent years.
Paragraph 2______
A:Post-marriage Life
B:The Birih Rate in the Early 1970s
C:Usual Family Structure of American Families
D:Features in Common in Many American Families
E:Marriage Concept in the USA
F:In Marriages Usually Romantic Love Is as Important as Social Class,Education,or Religion
共用题干
A Health Profile
A health profile is a portrait of all of the factors that influence your health.To draw your health profile,
you will__________(51)what diseases run in your family,what health hazards you may be exposed to
_________(52)work,how your daily__________(53)compares to the recommended standards,how much
timE per week you________(54)exercising and what type of exercise you engage_________(55),how
stressful your work and family environments are,what kinds of illnesses you get regularly,and_______(56)
or not you have any one of a number of addictions._______(57)this portrait,you should have a checkup
to determine how your blood,heart,and lungs are functioning.This checkup will serve________(58)a
haseline,to which you can then comPare later tests.
_________(59)this profile 15 thoroughly drawn,you can begin to think about setting health priorities
based__________(60)your particular portrait.For example,if you drink two martinis every evening,have a
high-stress______(61),are overweight，。moke a pack of cigaretteo a day,and uoe marijuana occaoional-
ly on weekends,you should quit smoking first,followed_________(62)losing the excess weight,reducing
the stress of your job,giving up your marijuana habit,and then finally giving some________(63)to those
martinis if you want to prevent first cancer,and then heart disease.Even for the youthful working person
who has never been sick a day in his life,who 15__________(64)excellent health,a good look at all health
habits and at work and home environments may suggest changes that will_______(65)him in the future.
_________(55)
A:on
B:in
C:with
D:about
A Health Profile
A health profile is a portrait of all of the factors that influence your health.To draw your health profile,
you will__________(51)what diseases run in your family,what health hazards you may be exposed to
_________(52)work,how your daily__________(53)compares to the recommended standards,how much
timE per week you________(54)exercising and what type of exercise you engage_________(55),how
stressful your work and family environments are,what kinds of illnesses you get regularly,and_______(56)
or not you have any one of a number of addictions._______(57)this portrait,you should have a checkup
to determine how your blood,heart,and lungs are functioning.This checkup will serve________(58)a
haseline,to which you can then comPare later tests.
_________(59)this profile 15 thoroughly drawn,you can begin to think about setting health priorities
based__________(60)your particular portrait.For example,if you drink two martinis every evening,have a
high-stress______(61),are overweight，。moke a pack of cigaretteo a day,and uoe marijuana occaoional-
ly on weekends,you should quit smoking first,followed_________(62)losing the excess weight,reducing
the stress of your job,giving up your marijuana habit,and then finally giving some________(63)to those
martinis if you want to prevent first cancer,and then heart disease.Even for the youthful working person
who has never been sick a day in his life,who 15__________(64)excellent health,a good look at all health
habits and at work and home environments may suggest changes that will_______(65)him in the future.
_________(55)
A:on
B:in
C:with
D:about
共用题干
By the year 1927,Dr. Andrew Manson had a reputation.His practice of medicine was not large,but all his patients had the greatest confidence in him.He(51)______gave medicines, but when he did so,he gave the newest,best,and often the most(52)______medicines on the market.By his use of modern medicines,Manson once prevented a serious disease from(53)______in his town,although the rest of the town suffered badly.
The committee of the Medical Society ought to have been thankful to Manson,but a few of its members,led by Chenkin,were(54)______of his success.Though Manson had many friends, he also had(55)______.
Andrew sometimes asked himself why he and Christine had remained in Manchester after the death of their child.His coal dust experiments were his only(56)______for staying,he could not leave the mines till he had completed his experiments.
He now had a great deal of information about the(57)______of coal bust on the miners' lungs.But,in order to(58)______his facts,he decided to make a few experiments on small animals,to study the action of the dust on their lungs.Here,his real problem began.Taking care to cause the animals as little(59)______as possible;Andrew made some extremely(60) ______experiments,which proved all his beliefs.He felt proud and excited.But then,a few days later,he had a(61)______.
When Andrew returned home from work,he found Christine looking( 62)______."What's the matter?"he asked her. She hesitated,"I had some visitors today.""Oh?Who were they?""Five members of the committee,including Chenkin.They had heard about your experiments on the animals,and wanted to see your(63)_____.I told them that you were not at home,but they pushed me out and went into the room.When they saw the animals,one of the men shouted,"Oh, the poor creatures!"I tried to tell them that the animals had not suffered,but they(64)______to listen.They took the animals with them."
"What!"Andrew shouted.He thought for a minute,and then went into the hall to use the phone.But,just as he reached it,the phone bell rang."Hello!"he said angrily.Then his(65) ______changed.It was Owen."Look here,Owen.""I know,I know."Owen interrupted." This is a bad business.I'll come to see you now."Owen came.Before Andrew could speak,he said,"Did you get permission?"Andrew looked at him in surprise,"Permission for what?""To experiment on animals."
"Good Heavens,no!I never thought about it!""I'm afraid there will be trouble,"Owen said. "Some members of the committee feel very bitter against you.But don't worry,everything will be ok in the end."
_________(51)
A:rarely
B:often
C:never
D:frequently
By the year 1927,Dr. Andrew Manson had a reputation.His practice of medicine was not large,but all his patients had the greatest confidence in him.He(51)______gave medicines, but when he did so,he gave the newest,best,and often the most(52)______medicines on the market.By his use of modern medicines,Manson once prevented a serious disease from(53)______in his town,although the rest of the town suffered badly.
The committee of the Medical Society ought to have been thankful to Manson,but a few of its members,led by Chenkin,were(54)______of his success.Though Manson had many friends, he also had(55)______.
Andrew sometimes asked himself why he and Christine had remained in Manchester after the death of their child.His coal dust experiments were his only(56)______for staying,he could not leave the mines till he had completed his experiments.
He now had a great deal of information about the(57)______of coal bust on the miners' lungs.But,in order to(58)______his facts,he decided to make a few experiments on small animals,to study the action of the dust on their lungs.Here,his real problem began.Taking care to cause the animals as little(59)______as possible;Andrew made some extremely(60) ______experiments,which proved all his beliefs.He felt proud and excited.But then,a few days later,he had a(61)______.
When Andrew returned home from work,he found Christine looking( 62)______."What's the matter?"he asked her. She hesitated,"I had some visitors today.""Oh?Who were they?""Five members of the committee,including Chenkin.They had heard about your experiments on the animals,and wanted to see your(63)_____.I told them that you were not at home,but they pushed me out and went into the room.When they saw the animals,one of the men shouted,"Oh, the poor creatures!"I tried to tell them that the animals had not suffered,but they(64)______to listen.They took the animals with them."
"What!"Andrew shouted.He thought for a minute,and then went into the hall to use the phone.But,just as he reached it,the phone bell rang."Hello!"he said angrily.Then his(65) ______changed.It was Owen."Look here,Owen.""I know,I know."Owen interrupted." This is a bad business.I'll come to see you now."Owen came.Before Andrew could speak,he said,"Did you get permission?"Andrew looked at him in surprise,"Permission for what?""To experiment on animals."
"Good Heavens,no!I never thought about it!""I'm afraid there will be trouble,"Owen said. "Some members of the committee feel very bitter against you.But don't worry,everything will be ok in the end."
_________(51)
A:rarely
B:often
C:never
D:frequently