Dr Myers and other researchers hold thatA. people should look for a baseline that can’t work for a longer time. B. fisheries should keep the yield below 50% of the biomass C. the ocean biomass should restored its original level. D. people should adjust the fishing baseline to changing situation
Dr Myers and other researchers hold that
A. people should look for a baseline that can’t work for a longer time. B. fisheries should keep the yield below 50% of the biomass C. the ocean biomass should restored its original level. D. people should adjust the fishing baseline to changing situation
相关考题：
The saying“He who dies rich, dies disgraced” properly means thatA． the wealthy people should give away their fortunes after deathB． the wealthy people should feel ashamed for their assetsC． the wealthy people should abandon their careers for charitiesD． it is shameful for the wealthy people to keep their wealth till death
What were the people asked to do in the study?A. To make a face at each other.B. To get their faces impressive.C. To classify some face pictures.D. To observe the researchers' faces.
Dr. Myers and other researchers hold that ________.[A] people should look for a baseline that can’t work for a longer time[B] fisheries should keep the yield below 50% of the biomass[C] the ocean biomass should restored its original level[D] people should adjust the fishing baseline to changing situation
Passage TwoWhen we see well, we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how important our eyes are.People who are nearsighted can only see things that are very close to their eyes. Everything else is not so clear. Many people who do a lot of close work, such as writing, reading and sewing, become near sighted. Then they have to wear glasses in order to see distant (远处的) things clearly'.People who are nearsighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm's length. If they want to do much reading, they must get glasses, too.Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光). This, too, can be corrected by glasses. Some people's eyes become cloudy because of cataracts (白内障). Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them.Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle (角度). To prove this to yourself, look at an object out of one eye; then look at the same object outof the other eye. You will find the object's relation to the background (背景) and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.40. We should take good care of our eyes ______.A. only when we cannot see perfectlyB. only when we can see wellC. even if we can see wellD. only when we realize how important our eyes are
Different cultures have different__concerning how far apart people should stand when communicating with each other.A. conclusionB. commitmentC.customsD. communications
different cultures have different ________ concerning how far apart people should stand when communicating with each other. A、commitmentB、communicationC、customsD、conclusion
To be inspired by other people's creativity，children should______.A．write ideasB．make up storiesC．buy good notebooksD．visit museums，libraries，and science centers
We can infer from Dr Myers and Dr. Worm’s paper thatA. the stock of large predators in some old fisheries has reduced by 90%. B. there are only half as many fisheries as there were 15 years ago. C. the catch sizes in new fisheries are only 20% of the original amount. D. the number of larger predators dropped faster in new fisheries than in the old.
Should the steel be loaded in conditions where the ambient temperature is lower than might be encountered later on in the voyage，______．A.the hold should be ventilatedB.the hold should not be ventilatedC.the hold should be half-ventilatedD.hot air should be introduced into the hold
共用题干Warm People Likely to Keep Cold at BayStaying positive through the cold season could be your best defense.against getting ill,new study findings suggest.In an experiment that exposed healthy volunteers to a cold or flu virus,researchers found that people with a generally sunny disposition were less likely to fall ill.The findings,published in the journal Psychosomatic Medicine,build on evidence that a"positive emotional style"can help ward off the common cold and other illnesses.Researchers believe the reasons may be both objective as in happiness boosting immune function and subjective as in happy people being less trou- bled by a scratchy throat or runny nose."People with a positive emotional style may have different immune responses to the virus,"explained lead study author Dr.Sheldon Cohen of Carnegie Mellon University in Pittsburgh."And when they do get a cold,they may interpret their illness as being less severe."Cohen and his colleagues had found in a previous study that happier people seemed less susceptible to catching a cold,but some questions remained as to whether the emotional trait itself had the effect.For the new study,the researchers had 193 healthy adults complete standard measures of personality traits,self-perceived health and emotional"style".Those who tended to be happy,energetic and easy-going were judged as having a positive emotional style,while those who were often unhappy,tense and hostile had a negative style.The researchers gave them nasal drops containing either a cold virus or a particular flu virus.Over the next six days,the volunteers reported on any aches,pains,sneezing or congestion they had,while the researchers collected objective data,like daily mucus production.Cohen and his colleagues found that based on objective measures of nasal woes,happy people were less likely to develop a cold.The researchers chose 193 adults who had a negative style for the study.A:RightB:Wrong C:Not mentioned
资料：When we see well，we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how important our eyes are.People who are near-sighted can only see things that are very close to their eyes，Everything else seems blurry（=unclear）.Many people who do a lot of work，such as writing，reading and sewing become near-sighted.People who are far-sighted suffer from just the opposite problem. They can see things that are far away，but they have difficulty in reading a book unless they hold it at arm’s length. If they want to do much reading，they must get glasses，too.Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism. This，too，can be corrected by glasses. Some people’s eyes become cloudy because of cataracts. Long ago these people often became blind. Now，however，it is possible to operate on the cataracts and remove them.Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle. To prove this to yourself，look at an object out of one eye；Then look at the same object out of your other eye. You will find the object’s relation to the background and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.People who suffer from astigmatism have______.A.a difficulty that can be corrected by an operationB.eyes that are not exactly the right shapeC.an eye difficulty that cannot be corrected by glassesD.one eye bigger than the other
资料：When we see well，we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how important our eyes are.People who are near-sighted can only see things that are very close to their eyes，Everything else seems blurry（=unclear）.Many people who do a lot of work，such as writing，reading and sewing become near-sighted.People who are far-sighted suffer from just the opposite problem. They can see things that are far away，but they have difficulty in reading a book unless they hold it at arm’s length. If they want to do much reading，they must get glasses，too.Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism. This，too，can be corrected by glasses. Some people’s eyes become cloudy because of cataracts. Long ago these people often became blind. Now，however，it is possible to operate on the cataracts and remove them.Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle. To prove this to yourself，look at an object out of one eye；Then look at the same object out of your other eye. You will find the object’s relation to the background and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.Having two eyes instead of one is particularly useful for______.A.looking over a wide areaB.seeing objects far awayC.judging distancesD.seeing at night
资料：When we see well，we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how important our eyes are.People who are near-sighted can only see things that are very close to their eyes，Everything else seems blurry（=unclear）.Many people who do a lot of work，such as writing，reading and sewing become near-sighted.People who are far-sighted suffer from just the opposite problem. They can see things that are far away，but they have difficulty in reading a book unless they hold it at arm’s length. If they want to do much reading，they must get glasses，too.Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism. This，too，can be corrected by glasses. Some people’s eyes become cloudy because of cataracts. Long ago these people often became blind. Now，however，it is possible to operate on the cataracts and remove them.Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle. To prove this to yourself，look at an object out of one eye；Then look at the same object out of your other eye. You will find the object’s relation to the background and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.We should take good care of our eyes______.A.even if we can see wellB.only when we cannot see perfectlyC.only when we realize how important our eyes areD.only when we can see well
共用题干The First Four MinutesWhen do people decide whether or not they want to become friends?During their first four minutes together,according to a book by Dr. Leonard Zunin.In his book,Contact:The First Four Minutes,he offers this advice to anyone interested in starting new friendships:"________(46)A lot of people's whole lives would change if they did just that."You may have noticed that the average person does not give his undivided attention to someone he has just met._________(47)If anyone has ever done this to you,you probably did not like him very much.When we are introduced to new people,the author suggests,we should try to appear friendly and self-confident. In general,he says,"People like people who like themselves".On the other hand,we should not make the other person think we are too sure of ourselves.It is important to appear interested and sympathetic,realizing that the other person has his own needs,fears,and hopes.Hearing such advice,one might say,"But I'm not a friendly,self-confident person.That's not my nature.It would be dishonest for me to act that way."__________(48)We can become accustomed to any changes we choose to make in our personality."It is like getting used to a new car. It may be unfamiliar at first,but it goes much better than the old one."But isn't it dishonest to give the appearance of friendly self-confidence when we don't actually feel that way?Perhaps,but according to Dr. Zunin,"total honesty"is not always good for social relationships, especially during the first few minutes of contact. There is a time for everything,and a certain amount of play-acting may be best for the first few minutes of contact with a stranger. That is not the time to complainabout one's health or to mention faults one finds in other people.It is not the time to tell the whole truth about one's opinions and impressions.________(49)For a husband and wife or a parent and child,problems often arise during their first four minutes together after they have been apart. Dr. Zunin suggests that these first few minutes together be treated with care.If there are unpleasant matters to be discussed,they should be dealt with later.The author says that interpersonal relations should be taught as a required course in every school,along with reading,writing,and mathematics.__________(50)That is at least as important as how much we know._________（49）A:In reply,Dr. Zunin would claim that a little practice can help us feel comfortable about changing our social habits.B:Much of what has been said about strangers also applies to relationships with family members and friends.C:In his opinion,success in life depends mainly on how we get along with other people.D:Every time you meet someone in a social situation,give him your undivided attention for four minutes.E:He keeps looking over the other person'S shoulder,as if hoping to find someone more interesting in another part of the room.F:He is eager to make friends with everyone.
共用题干Warm People Likely to Keep Cold at BayStaying positive through the cold season could be your best defense against getting ill,new study findings suggest.In an experiment that exposed healthy volunteers to a cold or flu virus,researchers found that people with a generally sunny disposition were less likely to fall ill.The findings,published in the journal Psychosomatic Medicine,build on evidence that a"positive emotional style"can help ward off the common cold and other illnesses.Researchers believe the reasons may be both objective as in happiness boosting immune function and subjective as in happy people being less troubled by a scratchy throat or runny nose?"People with a positive emotional style may have different immune responses to the virus,"explained lead study author Dr Sheldon Cohen of Carnegie Mellon University in Pittsburgh."And when they do get a cold,they may interpret their illness as being less severe."Cohen and his colleagues had found in a previous study that happier people seemed less susceptible to catching a cold,but some questions remained as to whether the emotional trait itself had the effect.For the new study,the researchers had 193 healthy adults complete standard measures of personality traits,self-perceived health and emotional"style".Those who tended to be happy,energetic and easy-going were judged as having a positive emotional style,while those who were often unhappy,tense and hostile had a negative style.The researchers gave them nasal drops containing either a cold virus or a particular flu virus.Over the next six days,the volunteers reported on any aches,pains,sneezing or congestion they had,while the researchers collected objective data,like daily mucus production.Cohen and his colleagues found that based on objective measures of nasal woes,happy people were less likely to develop a cold.Researchers believed that people who were happy, energetic and easy一going had stronger immune function.A:Right B:Wrong C:Not mentioned
共用题干Warm People Likely to Keep Cold at BayStaying positive through the cold season could be your best defense against getting ill,new study findings suggest.In an experiment that exposed healthy volunteers to a cold or flu virus,researchers found that people with a generally sunny disposition were less likely to fall ill.The findings,published in the journal Psychosomatic Medicine,build on evidence that a"positive emotional style"can help ward off the common cold and other illnesses.Researchers believe the reasons may be both objective as in happiness boosting immune function and subjective as in happy people being less troubled by a scratchy throat or runny nose?"People with a positive emotional style may have different immune responses to the virus,"explained lead study author Dr Sheldon Cohen of Carnegie Mellon University in Pittsburgh."And when they do get a cold,they may interpret their illness as being less severe."Cohen and his colleagues had found in a previous study that happier people seemed less susceptible to catching a cold,but some questions remained as to whether the emotional trait itself had the effect.For the new study,the researchers had 193 healthy adults complete standard measures of personality traits,self-perceived health and emotional"style".Those who tended to be happy,energetic and easy-going were judged as having a positive emotional style,while those who were often unhappy,tense and hostile had a negative style.The researchers gave them nasal drops containing either a cold virus or a particular flu virus.Over the next six days,the volunteers reported on any aches,pains,sneezing or congestion they had,while the researchers collected objective data,like daily mucus production.Cohen and his colleagues found that based on objective measures of nasal woes,happy people were less likely to develop a cold.People with a sunny disposition are immune to illness.A:Right B:Wrong C:Not mentioned
During working time, everybody has to（）(注意)their’s own and other people’s safety.A、take care ofB、take overC、look afterD、look for
问答题Practice 8 You should spend about 40 minutes on this task. Write about the following topic: Some people think people have benefited from modern communications technology, but other people think some people have not benefited at all. To what extent do you agree or disagree? You should write at least 250 words.
单选题In the passage, the author implies that _____.Ait is not good for people to travel aloneBone should explore philosophical problems under the guidance of other philosophersCone should follow the path of other philosophersDone would study philosophy with others
单选题To keep injured survivors warm in the water after abandoning a ship，they should（）.Abe placed in the middle of a small circle formed by the other survivors in the waterBfloat on their backs with their arms extended for maximum exposure to the airCremove their life preservers and hold on to the uninjured survivorsDsip seawater at intervals of fifteen minutes
问答题Practice 1 You should spend about 40 minutes on this task. Write about the following topic: People can perform everyday tasks, such as shopping and banking as well as business transactions, without meeting other people face-to-face. What are the effects of this on an individual and society as a whole? You should write at least 250 words.
单选题According to the author, to be an anthropologist means we should _____.Atake interest in what we are doingBnot take interest in what other people are doingCjudge other people’s behaviors with accepted standardsDnot judge other people’s behaviors with our own standards