问题:He is but a child.A: probably B: not C: only D: hardly
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问题:John has made up his mind not to go to the meeting.A:wanted B: promised C:decided D:agreed
问题:共用题干 The majority of people,about nine out of ten,are right-handed.Not until recently,people who were left-handed were considered__________(51),and once children showed this tendency they were forced to use their right hands. Today left-handedness is generally_________(52),but it is still a disadvantage in a world________(53)most people are right-handed.For example,most tools and implements are still designed for right-handed people.In sports,__________(54)contrast,doing things with the left hand or foot,is often an advantage.Throwing,kicking,punching or batting from the"wrong"side may result_________(55)throwing off many opponents who are more accustomed to dealing with the_________(56)of players who are right-handed.This is why,in many ________(57)at a professional level,a higher proportion of players are left-handed than in the population as a whole.The word"right"in many languages means"correct"or is_________(58)with lawfulness, whereas the words associated__________(59)"left",such as"sinister",generally have_________ (60)associations.Moreover,among a number of primitive peoples,there is_________(61)close association between death and the left hand.In the past,in most Western societies,children were often forced to use their right hands,especially to write with.In some cases the left hand was_________(62)behind the child's back so that it could not be used.If,in the future,they are allowed to choose,_________(63)will certainly be more left handers,and probably_________(64)people with minor psychological disturbances as a result of being forced to use their_________(65)hand._________(57)A:games B:hobbiesC:activities D:rounds
问题:共用题干 The World's Best-Selling MedicineSince ancient times,people all over the world have used willow to stop pain. The willow tree contains salicylic acid(水杨酸).This stops pain, but there is one problem. Salicylic acid also hurts the stomach. In 1853,a French scientist made a mixture from willow that did not hurt the stomach.However,his mixture was difficult to make,and he did not try to produce or sell it.In 1897,in Germany,Felix Hoffmann also made a mixture with salicylic acid. He tried it himself first and then gave it to his father because his father was old and in a lot of pain.His father's pain went away,and the mixture did not hurt his stomach.Hoffmann worked for Bayer,a German company. He showed his new drug to his manager,who tested the drug and found that it worked well.Bayer decided to make the drug.They called it aspirin and put the Bayer name on every pill.Aspirin was an immediate success. Almost everyone has pain of some kind,so aspirin answered a true need. Aspirin was cheap,easy to take,and effective. It also lowered fevers.Aspirin was a wonder drug.At first,Bayer sold the drug through doctors,who then sold it to their patients. In 1915,the company started to sell aspirin in drugstores.In the United States,Bayer had a patent(专利权)on the drug. Other companies could make similar products and sell them in other countries,but only bayer could make and sell aspirin in the United States.In time,Bayer could no longer own the name aspirin in the United States. Other companies could make it there,too.However,Bayer aspirin was the most well known,and for many years,it was the market leader.By the 1950s,new painkillers were on the market. Aspirin was no longer the only way to treat pain and reduce fever. Bayer and other companies looked for other drugs to make.However,in the l970s they got a surprise. Doctors noticed that patients who were taking aspirin had fewer heart attacks than other people. A British researcher named John Vane found the reason aspirin helped to prevent heart attacks.In 1982,he won the Nobel prize for his research. Doctors started to tell some of their patients to take aspirin every day to prevent heart attacks.It has made life better for the many people who take it. It has also made a lot of mon-ey for companies like Bayer that produce and sell it!What has happened to aspirin since new painkillers came on the market?A: Companies have stopped selling it.B: It has become the best-selling painkiller.C: Its new use has been discovered.D: Doctors have sold it to patients.
问题: Power Napping is Good f the I.Q.Today we hear me me about the imptance of getting enoughsleep—about eight hours a night. Sleep can help heal give energy toboth the body the brain. ____1____ It seems almost certain that the thirdof our lives that we spend asleep has a great effect on the two-thirds that weare awake. Sleep affects our emotions, memy, focus, behavi.Studies show that people in developed countries spend less timeasleep me time at wk commuting. Dr. Karine Spiegel, at theUniversity of Chicago, has found that the average length of sleep has gone downfrom nine hours a night in 1910 to seven--a-half hours a night today.However, our bodies cannot function well without enough sleep. ____2____Accding to Canadian scientist Dr. Stanley Cen, every hour of lost sleep at nightcauses us to lose one I.Q. point the next day. F example, when someone getsonly five six hours of sleep each night f a week, the person’s I.Q. couldgo down 15 points me. ____3____Most sleep experts say that humans need at least eight hours ofsleep every day, but it should be in two stages: a long sleep at night ashter nap in the afternoon. Some companies help their employees follow thisadvice. ____4____ They say this makes the wkers much me efficient.To study sleep deprivation (not getting enough sleep), scientistsuse a test called the Multiple Sleep Latency Test (MSLT). During the test, aperson stays in a darkened, quiet room during the daytime. Scientists believethat a sleep-deprived person will fall asleep quickly. If it takes ten minutes longer to fall asleep, the person is probably getting enough sleep.Scientists have also found that the time of year seems to affect howmuch sleep we need. ____5____ However, in the summer, people sometimes sleep aslittle as six hours, without having any problems.词汇:emotion n. 情绪commuting n. 乘公交车上下班,通勤I.Q. n. 智商(全称为intelligent quotient)deprivation n. 剥夺,匮乏Sleep Latency Test n. 睡眠潜伏期注释:1.have/has an effect on... 对……有效果的2.go down from... to...从………降至……练习:A.They allow them to “power nap” in the afternoon, if only f 20 minutes.B.Losing just one two hours of sleep a night, over a long period oftime, can cause serious health problems.C.People usually sleep longer in the winter, sometimes as much as 14hours a night.D.People in power are me intelligent because they take naps.E.Medical experts now believe that sleep is even me imptant fhealth than diet exercise.F.That’s why, without enough sleep, a nmally intelligent person may startto have difficulty doing daily tasks.
问题: Recent pressure at work may account for his behavior.A: explain B: change C: influence D: embody
问题:The dentist has decided to take out the girl's bad tooth.A:.digB:drawC:pullD:extract
问题:共用题干 Health Insurance(保险)Most Americans are responsible for their own medical costs.These can be extremely high if a person gets very_________(1)or has an accident.So people buy a health insurance plan to make sure these costs will be_________(2).Most American colleges and universities have_________(3)health centers.There may even be a teaching hospital that can treat more serious__________(4).Some medical services may be included in the cost of attending a school.But health insurance is usually needed for extra services._________(5)most full-time college students must have insurance.Students may already be protected under their family's health plan.If not,many colleges offer_________(6)own plans.The University of Michigan will be our example.Students pay a health service fee. Then there is no extra charge when they are treated for minor__________(7)problems at the University Health Center. But the school wants students to have health insurance to pay_______(8)other services.The insurance plan________(9)by the university costs about one thousand seven hundred dollars a year. Such health insurance_________(10)generally pay for hospital services,emergency room care and visits to doctors.They___________(11)do not pay for care of the teeth.And they usually do not pay for treatment of medical conditions that existed________(12)the student arrived at school.International students at the University of Michigan have two________(13).They can buy the university health plan.Or they can________(14)private insurance that is approved by the university.The school also offers a special International Student Insurance Plan.This pays for most of the services offered__________(15)the University Health Center that are not included in the health service fee._________(12) A: after B: if C: before D: since
问题:共用题干 More About Alzheimer 's DiseaseScientists have developed skin tests that may be used in the future to identify people with Alzheimer's disease and may ultimately allow physicians to predict who is at risk of getting this neurological(神经病学的)disorder.The only current means of diagnosing the disease in a living patient is a long and expensive series of tests that eliminate every other cause of dementia. "Since Alois Alzheimer described the disease nearly a century ago,people have been trying to find a way to accurately diagnose it in its early stages,"said Patricia Grady,acting director of the National Institute of Neurological Disorders and Stroke in Bethesda,Maryland."This discovery,if confirmed,could prove a big step forward in our efforts to deal with and understand the disease."Alzheimer's is the single greatest cause of mental deterioration in older people,affecting between 2.5 million and 4 million people in the United States alone.The devastating disorder gradually destroys memory and the ability to function,and eventually causes death.There is currently no known treatment for the disease.Researchers discovered that the skin cells of Alzheimer’s patients have defects that interfere with their ability to regulate the flow of potassium in and out of the cells.The fact that the cell defects are present in the skin suggests that Alzheimer's results from physiological changes throughout the body,and that dementia may be the first noticeable effect of these changes as the defects affect the cells in the brain,scientists said.The flow of potassium is especially critical in cells responsible for memory formation.The scientists also found two other defects that affect the cells'supply of calcium,another critical element.One test developed by researches calls for growing skin cells in a laboratory culture and then testing them with an electrical detector to determine if the microscopic tunnels that govern the flow of potassium are open.Open potassium channels create a unique electrical signature.A spokesman for the Alzheimer's Association said that if the validity of the diagnostic test can be proven it would be an important development,but he cautioned that other promising tests for Alzheimer's have been disappointing.The newly developed skin tests may be used in the future to allow doctors to______.A:cure those with Alzheimer's diseaseB:discover the cause of Alzheimer's diseaseC:predict who might get Alzheimer's diseaseD:find the consequences of Alzheimer's disease
问题:共用题干 Many Children'S Deaths Preventable:WHOOver five million children die each year from disease,infections and accidents related______(51)their environment although many of these deaths are largely preventable,says the World Health Organization.On Monday,the WHO asked governments and citizens around the world to take action to cre-ate healthy______(52)for children as it celebrated World Health Day.“The biggest threats to children's health lurk in the very______( 53)that should be safest-home,school and community,” said Dr. Gro Harlem Brundtland,director-general of the WHO at the day's launch in New Delhi,India.“Every child has the right to______(54)up in a healthy home,school and community.The future development of our children-and their world-depends on______(55)enjoying good health now.We have their future in our______(56).Now we must work more effectively together to______(57)the risks from the environment which our children face,”Brundtland said.This year's theme,“Healthy Environments for Children”focuses on the many dangers ______(58)by children in and around the places where they live and play.These include inadequate access to safe drinking______(59)and sanitation,insect- borne diseases,air pollution,chemical hazards and injuries from traffic,falls,burns and drownings.Communities around the world organized events to promote awareness of children's health is-sues,______(60)included drawing contests for schoolchildren in Vietnam,street plays in In-dia,puppet shows in Namibia and professional lectures for policy makers in Germany and else-where.Activities also took______(61)in cities across Canada on Monday,including Calgary, Montreal,Halifax and Ottawa.Although children under five represent only 10 per cent of the world's population,they bear 40 per cent of the global disease______(62),says the WHO.And as much as one-third of the total burden of disease may be caused by environmental______(63).World Health Day has been celebrated on April 7th______(64)1950 .Each year the WHO chooses a theme to highlight areas of particular concern.Last year's______(65),Move for Health,focused on promoting physical activity as part. of healthy living.61._________A:. shapeB: orderC: routeD: place
问题:共用题干 Promising Resnlts from Cancer StudyA new experimental vaccine(疫苗)has shown promising results in the fight against lung cancer.In a small Texas-based study,a vaccine developed by scientists at Baylor University Medical Centre in Dallas,USA,cured lung cancer in some patients and slowed the progress of the disease in others.Researchers have reported encouraging findings from this small study.Forty一three patients suffering from lung cancer were involved in these trials.Ten of these patients were in the early stages and thirty-three in tho advanced stages of the disease.They were injected with the vaccine every two weeks for three months,and were carefully monitored for three years.In three of the patients in the advanced stages of cancer,the disease disappeared and in the others,it did not spread for five to twenty-four months.However,no great difference was seen in the patients in the early stages of the illness.This new vaccine uses the patient's own immune system.It is made specifically for each patient and is injected into the arm or leg.It stimulates(刺激)the body's immune system, which then recognizes that the cancer cells are harmful,and attacks and destroys them.The vaccine could be effective against other forms of cancer.It offers great hope for the treatment of cancer in general,although further studies are needed before such treatment can be widely used.All the patients were from Dallas.A:RightB:WrongC:Not mentioned
问题:共用题干 Influenza(流感)Influenza has been with us a long time. According to some Greek writers___1___ medical history, the outbreak of 412 B. C. was of influenza. The same has been suggested of the sickness___ 2___swept through the Greek army attacking Syracuse in 395B. C. Influenza is a disease that moves most quick-ly among people living in___ 3___ conditions,hence,it is likely to attack armies.___4___ the nineteenth century there were five widespread outbreaks of influenza. The last of the five ___5 ___in 1889 and marked the beginning of the story of influenza in our time.___ 6 ___the recent outbreak,it started in Asia.For more than forty years before that outbreak,influenza had steadily ___7___ and was be-lieved to be dying out. A new group of outbreaks was___ 8 ___by the great outbreak of 1889一 1890 and for the next quarter of a century influenza remained a constant threat.In April 1918 influenza broke out among American troops stationed in France. It quickly spread through all the___ 9___ but caused relatively few deaths. Four months later,however,a second outbreak started which ___10___ to be a killer. It killed not only the old and already sick but also healthy young adults. It ___11___ through every country in the world,only a few distant islands in the South Atlantic and the Pacific remaining___12___.It brought the life of whole countries to stop,food___13___stopped and work loss was very great.Before the great outbreak ended,it had killed at ___14 ___ 15 million people. Thereafter,there have been several great outbreaks throughout the world. It is thus___15___that influenza is a terrible infection that we have to pay more attention to.10._________A: ceasedB: provedC: wantedD: failed
问题:It is possible to approach the problem in a different way.A:handleB: raiseC: poseD: experience
问题:共用题干 Migrant WorkersIn the past twenty years,there has been an increasing tendency for workers to move from one country to another._________(51)some newly independent countries have understandably restricted most jobs to local people,others have attracted and welcomed migrant workers.This is particularly the case in the MiddleEast, _______(52)increased oil incomes have enabled many countries to __________(53)outsiders to im- prove local facilities.__________(54)the Middle East has attracted oil-workers from the USA and Europe.It has brought in construction workers and technicians from many countries,________(55)South Korea and Japan.In view of the difficult living and working conditions in the Middle East,it is not___________(56)that the pay is high to attract suitable workers.Many engineers and technicians can earn at least___________(57) 1money in the Middle East as they can in their own country,and this is a major attraction.An allied benefit is the low taxation or complete lack of it.This increases the net amount of pay received by visiting workers and is very popular with them.Sometimes a disadvantage has a compensating advantage.__________(58),the difficult living conditions often lead to increased friendship when workers have to depend on each other____________(59)safety and com-fort. ___________(60),many migrant workers can save large sums of money partly _________(61)the lack of entertainment facilities.The work is often complex and full of problems but this merely presents greaterchallenge to engineers who prefer to find solutions__________(62)problems rather than do routine work intheir home country.One major problem which___________(63)migrant workers in the Middle East is that their jobs are tem- porary ones.They are nearly always on contract,so it is not easy for them to plan ahead with great confi- dence.This is to be expected since no country welcomes a large number of foreign workers as permanent residents.____________(64),migrant workers accept this disadvantage,along with others,because of the ___________(65)financial benefits which they receive._________(53)A:call inB:call offC:call upD:call on
问题:共用题干 第二篇In many of the developinlg countries in Africa and Asia,the population is growing fast.The reason for this is simple:Women in these countries have a high birth rate一from 3.0 to 7.0 children per woman.The majority of these women are poor,without the food or resources to care for their families.Why do they have so many children?Why don't they limit the size of the family?The answer may be that they often have no choice.There are several reasons for this.One reason is economic.In a traditional agricultural economy,large families are helpful.Having more children means having more workers in the fields and someone to take care of the parents in old age.In an industrial economy,the situation is different. Many children do not help a family;instead,they are an expense.Thus,industrialization has generally brought down the birth rate.This was the case in Italy,which was industrialized quite recently and rapidly.In the early part of the twentieth century,Italy was a poor,largely agricultural country with a high birth rate.After World War Ⅱ,Italy's economy was rapidly modernized and industrialized.By the end of the century,the birth rate had dropped to 1.3 children per woman,the world's lowest.However,the economy is not the only important factor that influences birth rate.Saudi Arabia, for example,does not have an agriculture-based economy,and it has one of the highest per capita incomes in the world.Nevertheless,it also has a very high birth rate(7.0).Mexico and Indonesia, on the other hand,are poor countries,with largely agricultural economies,but they have recently reduced their population growth.Clearly,other factors are involved.The most important of these is the condition of women.A high birth rate almost always goes together with lack of education and low status for women.This would explain the high birth rate of Saudi Arabia.There,the traditional culture gives women little education or independence and few possibilities outside the home.On the other hand,the improved condition of womnen in Mexico,Thailand,and Indonesia explains the decline in birth rates in these countries.Their governments have taken measures to provide more education and opportunities for women.Another key factor in the birth rate is birth control.Women may want to limit their families but have no way to do so. In countries where governments have made birth control easily available and inexpensive ,birth rates have gone down.This is the case in Singapore,Sri Lanka,and India,as well as in Indonesia,Thailand,Mexico,and Brazil.In these countries,women have also been provided with health care and help in planning their families.These trends show that an effective programn to reduce population growth does not have to depend on better economic conditions. It can be effective if it aims to help women and meet theii needs.Only then,in fact,does it have any real chance of success.When countries become industrialized,________.A:families often become largerB:the birth rate generally goes downC:women usually decide not to have a familyD:the population generally grows rapidly
问题: The rising sun is especially beautiful to look at from this angle.A:particularly B:obviously C:apparently D:expressively
问题:共用题干 The majority of people,about nine out of ten,are right-handed.Not until recently,people who were left-handed were considered__________(51),and once children showed this tendency they were forced to use their right hands. Today left-handedness is generally_________(52),but it is still a disadvantage in a world________(53)most people are right-handed.For example,most tools and implements are still designed for right-handed people.In sports,__________(54)contrast,doing things with the left hand or foot,is often an advantage.Throwing,kicking,punching or batting from the"wrong"side may result_________(55)throwing off many opponents who are more accustomed to dealing with the_________(56)of players who are right-handed.This is why,in many ________(57)at a professional level,a higher proportion of players are left-handed than in the population as a whole.The word"right"in many languages means"correct"or is_________(58)with lawfulness, whereas the words associated__________(59)"left",such as"sinister",generally have_________ (60)associations.Moreover,among a number of primitive peoples,there is_________(61)close association between death and the left hand.In the past,in most Western societies,children were often forced to use their right hands,especially to write with.In some cases the left hand was_________(62)behind the child's back so that it could not be used.If,in the future,they are allowed to choose,_________(63)will certainly be more left handers,and probably_________(64)people with minor psychological disturbances as a result of being forced to use their_________(65)hand._________(59)A:by B:withC:to D:at
问题:共用题干 Going on a DietA typical person needs about 1,800 calories per day to stay alive.These calories keep your heart ______(51)and your lungs breathing.They keep your organs operating______(52)and your brain running.They also keep your body warm.A person______(53)weight because he or she takes in more calories per day than needed.The only way to lose fat is to______(54)the number of calories that you take in per day.This is the basic______(55)behind going on a diet.______(56),diets don't work for most people.They do lose weight but then_______(57)the diet and put it back.Building a sensible diet and exercise plan is the key to______(58)a consistent weight.You need to figure out how many calories you need in a day and how many you______(59)take in.The next step is to add exercise so that you can______(60)the number of calories you can consume per day.Exercise charts can show you how many calories different_______(61)of exercise can burn.Burning 250 or 500 calories per day can______(62)a big difference.You can ride an exercise bike while you are watching TV or you can_(63)the stairs instead of the elevator.Find an exercise______(64).Exercise can be a lot easier if there is someone to talk to.It's a good idea to wear firm-fitting clothes if you are on a diet.______(65)clothing acts as a reminder of what you are trying to accomplish.54._________A:cut off B:take down C:remove D:reduce
问题: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.The researchers chose 193 adults who had a negative style for the study.A:Right B:Wrong C:Not mentioned
问题:共用题干 Aromatherapy(芳香疗法)1 Aromatherapy is a form of alternative medicine which is based on the use of very concentrated"es-sential"oils from the flowers,leaves,bark,branches or roots of plants which are considered to have healing properties.In aromatherapy these powerful oils are mixed with other oils , such as almond(杏仁)oil, or they are diluted(稀释)with water.These solutions(溶液剂)can be rubbed on the skin,sprayed in the air, or applied as a compress(敷药).2 Many people have aromatherapy massages(按摩),and depending on the treatment a person is having, the aromatherapist will massage the oil into the hands or shoulders.The massage is smooth and flowing,as it is designed to create a sense of relaxation and calm.The sessions are tailored to the individual's health and mood at the time,so every session is unique.3 Practitioners of aromatherapy believe that the aroma of the"essential"oils directly stimulates the brain or that the oils are absorbed through the skin into the bloodstream,where they can affect the whole body and promote healing.Other claims in support of aromatherapy are that it aids digestion,improves the functioning of respiratory system,reduces muscular aches and pains,and promotes muscle relaxation and tone.It has also been argued that aromatherapy can improve circulation,lower blood pressure,and help combat insomnia(失眠)and other stress-related disorders such as tension headaches , anxiety , and mild depression.4 However,while aromatherapy may have real effects that promote a sense of well-being,some tradi- tional medicine practitioners remain doubtful about its powers.While research has confirmed that aroma-therapy does have some positive short-term effects on most people,it also suggests that aromatherapy is not an actual science or medicine that should be used to treat illness.Furthermore,not all aromatherapy is considered beneficial to health.There are precautions which should be taken before having aromatherapy because some oils can have negative effects on people with certain medical conditions.The study of aroma-therapy is relatively new and unexplored.More research needs to be conducted to make scientific conclusions about its use and effects.Paragraph 2______A:Doubts About the Benefits of AromatherapyB:Introduction to AromatherapyC:Personalized Aromatherapy MassageD:Different Views About AromatherapyE:Aromatherapy and Conventional Medicine F:Current Research Into Aromatherapy