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单选题
What, according to the passage, makes the research conducted by the scientists at the Oregon Department of Health so unique?
A
The fact that the scientists managed to measure the average hourly increase of NNK.
B
The fact that the scientists succeeded in making more people realize the harm of smoking.
C
The fact that the scientists did a lot of experiments on smokers in public areas.
D
The fact that the scientists discovered NNK, a carcinogen in cigarette smoke.
参考答案
参考解析
解析：
细节理解题。答案来自第三段：“We were somewhat surprised by the immediacy of the effect and the fact that we could measure the average hourly increase.”
细节理解题。答案来自第三段：“We were somewhat surprised by the immediacy of the effect and the fact that we could measure the average hourly increase.”
更多 “单选题What, according to the passage, makes the research conducted by the scientists at the Oregon Department of Health so unique?A The fact that the scientists managed to measure the average hourly increase of NNK.B The fact that the scientists succeeded in making more people realize the harm of smoking.C The fact that the scientists did a lot of experiments on smokers in public areas.D The fact that the scientists discovered NNK, a carcinogen in cigarette smoke.” 相关考题
考题
According to this passage, _________.A． English is a sexist languageB． only in the scientific world is the role of women increasing rapidlyC． women are making significant contributions to eliminating the inadequacy of our languageD． male nouns or pronouns should not be used to refer to scientists
考题
Passage TwoQuestions 26 to 30 are based on the following passage.Scientists have established that influenza viruses taken from man can cause the disease in animals. In addition，man can catch the disease from animals. In fact，a great number of wild birds seem to carry the virus without showing any evidence of illness. Some scientists conclude that a large family of influenza viruses may have evolved in the bird kingdom，a group that has been on the earth 100 million years and is able to carry the virus without contracting the disease. These are even convincing evidence to show that virus strains are transmitted from place to place and from continent to continent by migrating birds.It is known that two influenza viruses can recombine when both are present in an animal at the same time. The result of such recombinations is a great variety of strains constraining different H and N spikes. This raises the possibility that a human influenza virus can recombine with an influenza virus form. a lower animal to produce an entirely new spike.Research is underway to determine if that is the way that major new strains come into being. Another possibility is that two animal influenza strains may recombine in a pig，for example，to produce a new strain which is transmitted to man.According to the passage，scientists have discovered that influenza viruses______.A. cause ill health in wild birdsB. do not always cause symptoms in birdsC. are rarely present in wild birdsD. change when transferred from animals to man
考题
The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.A. whatB. whichC. thatD. though
考题
According to Federal health officials ,the fact that more West Nile cases have been reported indicates that[A] more states are affected.[B] the average age dropped drastically.[C] health officials are more alert to the disease.[D] the epidemic season began a month earlier.
考题
The best statement of the main idea of this passage is that__________.A.scientists have found a way to prolong the period of clinical death
B.biological death occurs when vital organs have suffered permanent damage
C.modern scientists divide the process of dying into clinical and biological death
D.cooling delays the processes leading to biological death
考题
共用题干
Cloning（克隆）:Future Pertect?1 A clone is an exact copy of a plant or animal produced from any one cell.Since Scottish scientists reported that they had managed to clone a sheep named Dolly in 1997,research into cloning has grown rapidly.In May 1998,scientists in Massachusetts managed to create two identical calves（牛犊）using cloning technology. A mouse has also been cloned successfully.But the debate over cloning humans really started when Chicago physicist Richard Seed made a surprising announcement:"We will have managed to clonen a human being within the next two years."he told the world.2 Seed's announcement provoked a lot of media attention,most of it negative.In Europe, nineteen nations have already signed an agreement banning human cloning and in the U.S. the President announced:"We will be introducing a law to ban all human cloning and many states in the U.S. will have passed anti-cloning laws by the end of the year."3 Many researchers are not so negative about cloning.They are worried that laws banning human cloning will threaten important research.In March,The New England Joumal of Medicine called any plan to ban research on cloning humans seriously mistaken.Many researchers also believe that in spite of attempts to ban it,human cloning will have become routine by 2010 because it is impossible to stop the progress of science.4 Is there reason to fear that cloning will lead to a nightmare world?The public has been bombarded（轰炸）with newspaper articles , television shows and films , as well as cartoons.Such information is often misleading,and makes people wonder what on earth the scientists will be doing next.5 Within the next five to ten years scientists will probably have found a way of cioning humans.It could be that pretty soon we will be able to choose the person that we want our child to look like.But how would it feel to be a clone among hundreds,the anti-cloners ask. Pretty cool , answer the pro-cloners（赞成克隆的人）. Within ten years scientists will probably have______.A:the nucleus of a cellB:cloned human beingsC:a human being in two yearsD:a law to ban human cloningE:a report on human cloningF:heavy media coverage
考题
共用题干
第三篇Citizen ScientistsUnderstanding how nature responds to climate change will require monitoring key life cycle events一 flowering,the appearance of leaves and the first frog calls of the spring一all around the world.But ecologists can't be everywhere so they're turning to non-scientists,sometimes called citizen scientists,for help.Climate scientists are not present everywhere.Because there are so many places in the world and not enough scientists to observe all of them,they're asking for your help in observing signs of climate change across the world.The citizen scientist movement encourages ordinary people to observe a very specificresearch interest一birds,trees,flowers budding,etc.and send their observations to a giant database to be observed by professional scientists.This helps a small number of scientists track a large amount of data that they would never be able to gather on their own.Much like citizen journalists helping large publications cover a hyper-local beat,citizen scientists are ready for the conditions where they live in.All that's needed to become one is a few minutes each day or each week to gather data and send them in.A group of scientists and educators launched an organization last year called the National Phenology Network."Phenology"is what scientists call the study of the timing of events in nature.One of the group's first efforts relies on scientists and non-scientists alike to collect data about plant flowering and leafing eveiy year.The program,called Project BudBurst,collects life cycle data on a variety of common plants from across the United States.People participating in the project一which is open to every- one一record their observations on the Project BudBurst website."People don't have to be plant experts一they just have to look around and see what's in their neighbor- hood,"says Jennifer Schwartz,an education consultant with the project."As we collect these data,we'll be able to make an estimate of how plants and communities of plants and animals will respond as the climatechanges."In"All that's needed to become one…（Paragraph 2)",what does the word"one"stand for?A:A citizen journalist.B:A citizen scientist?C:A scientist.D:A citizen.
考题
共用题干
第三篇Citizen ScientistsUnderstanding how nature responds to climate change will require monitoring key life cycle events一 flowering,the appearance of leaves and the first frog calls of the spring一all around the world.But ecologists can't be everywhere so they're turning to non-scientists,sometimes called citizen scientists,for help.Climate scientists are not present everywhere.Because there are so many places in the world and not enough scientists to observe all of them,they're asking for your help in observing signs of climate change across the world.The citizen scientist movement encourages ordinary people to observe a very specificresearch interest一birds,trees,flowers budding,etc.and send their observations to a giant database to be observed by professional scientists.This helps a small number of scientists track a large amount of data that they would never be able to gather on their own.Much like citizen journalists helping large publications cover a hyper-local beat,citizen scientists are ready for the conditions where they live in.All that's needed to become one is a few minutes each day or each week to gather data and send them in.A group of scientists and educators launched an organization last year called the National Phenology Network."Phenology"is what scientists call the study of the timing of events in nature.One of the group's first efforts relies on scientists and non-scientists alike to collect data about plant flowering and leafing eveiy year.The program,called Project BudBurst,collects life cycle data on a variety of common plants from across the United States.People participating in the project一which is open to every- one一record their observations on the Project BudBurst website."People don't have to be plant experts一they just have to look around and see what's in their neighbor- hood,"says Jennifer Schwartz,an education consultant with the project."As we collect these data,we'll be able to make an estimate of how plants and communities of plants and animals will respond as the climatechanges."What are citizen scientists asked to do?A:To develop a specific research interest and become professional scientists.B:To send their research observations to a professional database.C:To increase their knowledge about climate change.D:To keep a record of their research observations.
考题
The scientists have conducted a series of experiments.A:actions
B:tests
C:effects
D:technologies
考题
共用题干
Citizen ScientistsUnderstanding how nature responds to climate change will require monitoring key life cycle events-flowering,the appearance of leaves,the first frog calls of the spring-all around the world.But ecologists can't be______(51)so they are turning to non-scientists,sometimes called citizen scientists,for help.Climate scientists are not present everywhere.______(52)there are so many places in the world and not enough scientists to observe all of them,they are asking for your help in_______(53)signs of climate change across the world.The citizen scientist movement encourages______(54)people to observe a very specific research interest-birds,trees,flowers budding,etc-and send their observations______(55)a giant database to be observed by professional scientists.This helps a small number of scientists track a______(56)amount of data that they would never be able to gather on their own.______(57)like citizen journalists helping large publications cover a hyper-local beat,citizen scientists are ready for the conditions where they live.______(58)that's needed to become one is a few minutes each day or each week to gather data and_______(59)it in.A group of scientists and educators launched an organization last year______(60) the NationalPhenology（生物气候学）Network."Phenology" is what scientists call the study of the timing of events in nature.One of the group's first efforts relies on scientists and non-scientists______(61)to collect data about plant flowering and leafing every year.The program,called Project BudBurst,collects life cycle______(62)on a variety of common plants from across the United States.People participating in the project-which is______(63)to everyone-record their observations on the Project BudBurst website."People don't______(64)to be plant experts-they just have to look around and see what's in their neighborhood,"says Jennifer Scheartz,an education consultant with the project."As we collect this data,we'11 be able to make an'estimate of______(65)plants and communities of plants and animals will respond as the climate changes."_________63A:common B:suitable C:open D:strange
考题
共用题干
第二篇Citizen ScientistsUnderstanding how nature responds to climate change will require monitoring key life cycle events一flowering,the appearance of leaves,the first frog calls of the spring一all around the world.But ecologists （生态学家）can' t be everywhere so they' re turning to non-scientists, sometimes called citizen scientists,for help.Climate scientists are not present everywhere.Because there are so many places in the world and not enough scientists to observe all of them,they're asking for your help in observing signs of c1imat。 ehang, across the world.The citizen scientist movement encourages ordinary people to observe "very specificresearch interest一birds,trees,flowers budding,etc. and send their observations to a giant database （数据库）to be observed by professional scientists. This helps a small number of scientists track a large amount of data that they would never be able to gather on their own.Much like citizen journalists helping large publications cover a hyper-local beat,citizen scientists are ready for the conditions where they live.All that's needed to become one is a few minutes each day or each week to gather data and send it in.A group of scientists and educators launched an organization last year called the National Phonology Network."Phenology"is what scientists eni1 the study of the timing of events in nature.One of the group's first efforts relies on scientists and non-scientists alike to collect data about plant flowering and leafing every year. The program,called Project BudBurst,collects life eyele data on a variety of common plants from across the United States.People participating in the project一which is open to every- one一record their observations on the Project BudBurst website."People don't have to be plant experts一they just have to look around and see what's in their neighborhood,"says Jennifer Schwartz,an education consultant with the project."As we collect this data, we'll be able to make an estimate of how p'ants and communities（生物群落）of plants and animals will re- spond as the climate changes."What are citizen scientists asked to do?A:To develop a specific research interest and become professional scientists.B:To send their research observations to a professional database.C:To increase their knowledge about climate change.D:To keep a record of their research observations.
考题
According to the passage，mathematicians present a danger to scientists for which of the following reasons？( ) A.Mathematicians may provide theories that are incompatible with those already developed by scientists
B.Mathematicians may define situation in a way that is incomprehensible to scientists
C.Mathematicians may convince scientists that theoretical assumptions are facts
D.Scientists may begin to provide arguments that are convincing but imprecise
考题
According to the passage，mathematicians present a danger to scientists for which of the following reasons？( ) A.Mathematicians may provide theories that are incompatible with those already developed by scientists.
B.Mathematicians may define situation in a way that is incomprehensible to scientists.
C.Mathematicians may convince scientists that theoretical assumptions are facts.
D.Scientists may begin to provide arguments that are convincing but imprecise.
考题
She's part of a team of scientists who are（）upon cancer research.A、workedB、arrangedC、engagedD、involved
考题
单选题According to the passage, the scientists carried out their researches on ______.A
smokers from different parts of the worldB
smokers from different states in the United StatesC
actors and actresses who smoke a lotD
wait staff and bartenders
考题
单选题According to the passage, scientists can’t observe some of the earliest steps in brain activity becausee.A
those changes are subtle and masked by some reactionsB
subtle changes in blood flow began earlierC
the imaging techniques are out of placeD
the flow of blood to increase to an area of the brain is slow
考题
单选题According to some scientists, the computer will do much harm to people’s health as smoking and drugs do.A
does much harm...smokingB
will do as much harm...cigarettesC
will do so much harm...smokingD
does as much harm...cigarettes
考题
单选题According to scientists diabetes causes all the following EXCEPT_____.A
lack of insulinB
accumulation of sugar energyC
brain damagesD
disorder in the immune system
考题
单选题According to the passage, what would happen to healthy cells within 48 hours of exposure to radio waves?A
The number of healthy cells will keep declining as more and more of them die.B
The number of healthy cells will initially drop before recovering rapidly.C
The number of healthy cells will be on steady increase throughout the process.D
The scientists have not yet arrived at any conclusion on this issue.
考题
单选题It is implied in the passage that ______.A
many scientists had known dinoflagellate before 1988B
there had been no such organisms before 1988C
many scientists were in doubt about the nature of the organism in 1988D
no scientists knew anything about the organism in 1988
考题
单选题The scientists have absolute freedom as to what research they think it best to_______A
pursue B
devote C
adjust D
engage
考题
单选题Scientists should be kept _____ of the latest developments in their research areas.A
informB
informingC
informedD
to inform
考题
单选题According to the passage, which of the following statements is NOT true?A
The potential health hazards of mobile phones call for further research.B
The Australian scientists find no connection between growth of tumors in human body and radiation from mobile phones.C
The Italian scientists’ belief is shared by other scientists.D
The British government inquiry didn’t establish any link between health risks and use of mobile phones.
考题
单选题According to this passage, _____.A
English is a sexist languageB
only in this scientific world is the role of women increasing rapidlyC
women are making significant contributions to eliminating the inadequacy of our languageD
male nouns or pronouns should not used to refer to scientists
考题
单选题She's part of a team of scientists who are（）upon cancer research.A
workedB
arrangedC
engagedD
involved
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