网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
From here you can see the city's landscape of high barren mountains.
A:hairless
B:bare
C:empty
D:dead
B:bare
C:empty
D:dead
参考答案
参考解析
解析：本句意思：从这里你可以看到这个城市中光秃秃的山峦的景象。hairless的意思为“无毛 发的”;bare的意思为“赤裸的，光秃秃的”;empty的意思为“空的”;dead的意思为“死的”。 barren的意思为“贫瘠的，不育的”，和bare的意思接近。
更多 “From here you can see the city's landscape of high barren mountains.A:hairless B:bare C:empty D:dead” 相关考题
考题
共用题干
第一篇Sprained（扭伤）AnkleOne of the most common injuries teenagers and adults experience is a sprained ankle.A sprain occurs when the ligaments（韧带）of a joint are twisted（扭伤）and possibly torn. Ligaments are bands of fibers that hold the bones of a joint in position.A sprain can occur from a sudden twisting at the joint,or a stretching or tearing of the fibers of the ligaments. The injured area usually swells（肿胀）and becomes black and blue. Stepping off the sidewalk at the wrong angle or having one foot land in a hole while walking or running can leave you rolling on the ground in pain with an ankle on fire!If you cannot walk without experiencing intense pain,you must seek medical help.If the pain is manageable,and you can walk,here are three words to help you remember how to treat yourself:●Elevate（抬高）●Cool●Bandage（打绷带）As soon as there is injury to that ligament,there will be a certain amount of bleeding under the skin. Once the blood pools around the damaged blood vessels,swelling occurs.The pressure from the swelling results in additional stress and tenderness to the region.In order to reduce the degree of swelling,lie down as soon as possible and keep the ankle elevated so that it is actually higher than your heart.Next,to reduce blood distribution and keep bleeding（流血）to a minimum, apply a cold pack. After 20 minutes, take the pack off,wait half an hour and then reapply.This can be done several times a day for a total of three days.Never leave a cold pack on for more than 20 minutes at a time.Reducing the temperature in that area for an extended period of time signals the body to increase blood flow to raise the body temperature!Therefore, one accidentally triggers（引起）more blood distribution to the affected area by leaving a cold pack on for too long!Finally,bandage the ankle.Be careful not to wind it too tightly;doing so can restrict blood flow and cause harm to the entire foot.A sprain is caused by________.A:blood vessels being hurt in the footB:constantly changing body temperatureC:ligament fibers of a joint being twistedD:elevating one's ankle
考题
共用题干
Scientists Develop Ways of Detecting Heart AttackGerman researchers have___1___a new generation of defibrillators and earlywarning software aimed at offering heart patients greater protection___2___sudden death from cardiac arrest.In Germany alone around 100,000 people die annually as a result of cardiac arrest and many of these cases___3___by disruption to the heart's rhythm. Those most at risk are pa- tients who have___4___suffered a heart attack,and for years the use of defibrillators has proved useful in diagnosing___ 5___ disruptions to heart rhythms and correcting them automat-ically by intervening within seconds. These devices___6___ a range of functions,such as that of pacemaker.Heart specialists at Freiburg's University Clinic have now achieved a breakthrough with an implanted defibrillator ___7___of generating a six-channel electrocardiogram(ECG)within the body. This integrated system allows early diagnosis of___8___blood-flow problems and a pending heart attack. It will be implanted in patients for the first time this year. Meanwhile, researchers at the Fraunhofer Institute for Applied Mathematics in Kaiserslautern have developed new computer software that renders the evaluation of ECG data___9___.The overwhelming___10___of patients at risk will not have an implanted defibrillator and must for this reason undergo regular ECGs.“Many of the current programs only ___11___ into account a linear correlation of the data. We are,however,making use___12___ a non-linear process that reveals the chaotic patterns of heart beats as an open and complex system,”Hagen Knaf says,“___ 13___ changes in the heart beats over time can be monitored and indi- vidual variations in patients taken into account.”An old study of ECG data,based___14___ 600 patients who had suffered a subsequent heart attack,enabled the researchers to compare risks and to show___15___the new software evaluates the data considerably better.2._________A: toB: forC: withD: from
考题
共用题干
1.Flaxseed slowed the growth of prostate tumors in men,while ginseng helped relieve the fatigue that cancer patients often feel,US researchers reported on Saturday in the first scientifically rigorous looks at alternative medicine.2.The studies reflect doctors' efforts to explore the risks and benefits of foods and supplements that are routinely taken by their patients with little scientific proof they help.Americans spend between￥36 billion and￥47 billion a year on complementary and alternative therapies,according to the National Center for Health Statistics."Patients are taking these compounds but we need to know if they are doing any good or any harm,"said Dr. Bruce Cheson of Georgetown University Hospital in Washington who led a panel on alternative therapies at a meeting of the American Society of Clinical Oncology.3.In the flaxseed study,researchers at Duke University Medical Center in North Carolina and colleagues evaluated the seed's role as a food supplement in 161 men who were scheduled to undergo surgery for prostate cancer."The growth rate was decreased in the men who got flaxseed,"said Dr. Nancy Davidson,an oncologist at Johns Hopkins University in Baltimore who is president-elect of ASCO."I think this is fascinating."Flaxseed is rich in omega-3 fatty acids-and lignins,a fiber found on the seed coat."We were looking at flaxseed because of its unique nutrient profile,"said Wendy Demark-Wahnefried,a researcher in Duke's School of Nursing,who led the study.4.Half of the men in the study added 30 grams of fiaxseed daily to their diets for about 30 days.Half of the flaxseed group also went on a low-fat diet.After the surgery,the researchers looked at the men's tumor cells to see how quickly the cancer had multiplied.The cancer cells in both the flaxseed groups grew about 30 to 40 percent slower than the control group.5.But Demark-Wahnefried is not ready to prescribe flaxseed."It's a healthy food.It has a lot of vitamins and a lot of fiber. But we cannot definitively say at this point you should take flaxseed because it is protective against prostate cancer,"she said,adding that flaxseed now needed to be studied to see if it can prevent prostate cancer.6.In the ginseng trial,Debra Barton of the Mayo Clinic in Rochester,Minnesota,and col-leagues tested three different doses of the herb on potency with a variety of cancers who were expected to live at least six months. Twenty-five percent of patients taking a 1,000-mg dose and twenty-seven percent of patients taking a 2,000-mg dose said their fatigue symptoms were"moderately better" or"much better."Only 10 percent of those taking a 750-mg dose reported an improvement, which was about the same as the placebo group.Patients in the trial took Wisconsin ginseng from a single crop that was tested for uniform potency.It was powdered and given in a capsule form."I wouldn't have predicted this,I have to admit,"Davidson said in an interview,"we might want to test this on a large scale."7.The flaxseed study was funded by the National institutes of Health and the ginseng study was supported by US Public Health Service grants.Paragraph 6___________A:The Motivation of Flaxseed StudyB:The Study on Ginseng Displays Its Good PromiseC:The Doctors' Responsibility Led Them to Carry Out These Two StudiesD:Ginseng Is As Good to Cancer Patients As Flax-seedE:The Methods and Results of the Study on Flax-seedF: A Different Opinion on the Use of Flax-seed
考题
共用题干
Relieving the Pain"Exercise may be the best treatment of chronic pain,"say doctors at a new clinic for dealing with pain. "People with chronic pain need to stop lying around,go out more,and start exercising."The instinctive reaction to acute pain is to stop moving and to try to protect the source of pain. But it seems that this is often not productive,especially in the case of back pain. Back pain,after headaches and tiredness,has become the third most common reason for people to visit their doctors.Painful backs now account for millions of days off work.Lumbar（腰部的）pains are partly the price humans pay for taking their forelimbs off the ground, but they are made worse by a sedentary（久坐不动的）lifestyle. Lack of exercise slowly decreases the flexibility and strength of muscles,so that it is more difficult to take pressure off the site of pain.Exercise is essential. It releases endorphins（内啡肽）,the body's "feel-good" chemicals, which are natural painkillers. In fact, these are so important that researchers are now looking for drugs that can maintain a comfortable level of endorphins in the body.Most people who go to a family doctor complaining of pain are prescribed pain-killing drugs rather than exercise.Since finding the cause of backache is not so easy,doctors frequently do not know the precise cause of the discomfort,and as the pain continues,sufferers end up taking stronger doses or a series of different drugs."It's crazy,"says Dr. Brasseur,a therapist at the International Association for the Study of Pain. "Some of them are taking different drugs prescribed by different doctors.I've just seen a patient who was taking two drugs which turned out to be the same thing under different names."A generation of new pain clinics now operates on the basis that drugs are best avoided.Once patients have undergone the initial physical and psychological check up,their medication is cut down as much as possible.Taking patients off drugs also prepares them for physical activity.In some pain一 relief clinics,patients begin the day with muscle contraction and relaxation exercises, followed by an hour on exercise bikes. Later in the day,they practice tai chi（太极）,self-defense,and deepthought. This compares with an average of two-and-a-half hours' physiotherapy（理疗）a week in a traditional hospital program."The idea is to strengthen and to increase long一lasting energy,flexibility,and confidence," explains Bill Wiles,a consultant pain doctor in Liverpool."Patients undergoing this therapy get back to work and resume healthy active lifestyles much sooner than those subjected to more conservative treatment."New pain clinics ask patients to give up drugs completely.A:RightB:WrongC:Not mentioned
考题
共用题干
Lung CancerThe death rate due to cancer of the lungs has increased more than 800 percent in males and has more than doubled in females during the last 25 years.It is considerably higher in urban and industrial areas than in rural districts._________(46)Those factors which have been mentioned most frequently are the presence of foreign particles and other irritants in the air(smoke particles, smog,exhaust fumes),and the smoking of cigarettes and cigars._________(47)Among heavy smokers—21 to 30 cigarettes per day—the mortality rate from lung cancer is nearly 17 times the rate from nonsmokers.It is expected the death rate among women will increase as the present high rate of smoking among women has its effect.Sometimes cases of lung cancer are discovered at the time an X-ray is taken for the purpose of detecting tuberculosis._________(48)Early detection is absolutely essential if any possibility of cure is to be maintained.Modern X-ray machines in competent hands pose such slight danger, at least to those over 40 years of age,that this would be much more than offset by the advantages of discovering a tumor while it is small enough to be completely removed._________(49)The tumor may grow until the bronchus is blocked,cutting off the supply of air to that lung.The lung then collapses,and the secretions trapped in the lung spaces become in-fected,with a resulting pneumonia or the formation of a lung abscess._________(50)The only treatment that offers a possibility of cure,before secondary growths have had time to form,is to re-move the lung completely.This operation is called pneumonectomy.Malignant tumors of the stomach,the breast,the prostate gland and other organs may spread to the lungs,causing secondary growths._________(46)A: A common form of lung cancer is bronchogenic carcinoma,so-called because the malig-nancy originates in a bronchus.B: Lung cancer,also known as carcinoma of the lung or pulmonary carcinoma,is a malignant lung tumor characterized by uncontrolled cell growth in tissues of the lung.C: Too often,however,a current emphasis upon the danger of exposure to radiation from X-ray machines can frighten people away from routine chest X-rays and thus prevent an ear-ly diagnosis of lung cancer.D: Numerous studies have demonstrated a striking correlation between the death rate from lung cancer and smoking habits.E: Such a lung cancer can also spread to cause secondary growths in the lymph nodes of the chest and neck as well as in the brain and other parts of the body.F:.There are many possible causes,but it is still controversial which are most blameworthy.
考题
共用题干
第二篇Cell Phones: Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue.Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case,a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.The writer's purpose of writing this article is to advise people___________.A:to buy mobile phonesB:to stop using mobile phonesC:to update regular phonesD:to use mobile phones less often
考题
A dentist may decide to extract the tooth to prevent recurrent trouble.A:take out
B:repair
C:pull
D:dig
热门标签
最新试卷