职称英语理工b级历年真题

职称英语理工b级历年真题职称英语考试练习题库，点击天宇考王免费下载试用Effects of Exercise on Elderly Diabetics （糖尿病人）Most older people with so-called type 2 diabetes （糖尿病）could stop taking insulin （胰岛素）if they would do brisk （轻快的）exercise for 30 minutes just three times a week,according to new medical research results reported in a Copenhagen newspaper. Results from tests conducted on diabetics at the Copenhagen central hospital Rigshospitalet's Center for Muscle Research showed that physical exercise can boost the body's ability to make use of insulin by 30 per cent. This is equal to the effect most elderly diabetics get from their insulin medication （药物治疗）today.Researchers had a group of non-diabetic men and a group of men with type 2 diabetes,all more than 60 years of age,exercise on bicycles six times a week for three months. After the three months the doctors measured how much sugar the test subjects' muscles could make use of as a measure for how well their insulin worked.Associate Professor Dr Flemming Dela of the Muscle Research Center said the tests demonstrated that the exercising diabetics had made as good use of insulin as the healthy non-diabetic persons. “This means that the insulin works just as well for both groups. Physical exercise cannot cure people of diabetes,but it can eliminate almost all their symptoms. At the same time it can put off the point at which they have to begin taking insulin," Dela said.Insulin is a hormone produced by the pancreas （胰腺）,controlling sugar in the body and is used against diabetes.Dela said that to achieve the desired effect diabetics need only exercise to the point where they begin to sweat,but that the activity has to be maintained since it wears off after five days without sufficient exercise.Most diabetics realize that they have to watch their diet while remaining unaware of the importance of exercise,Dela added.1 What is the effect of exercise on elderly people with type2 diabetes?A It can help the body make better use of insulin.B It can worsen their symptoms.C It can help them to eat more.D It can cure them of the disease.2 The exercise that the researchers tried on their test subjects wasA walking briskly for thirty minutes three times a week.B cycling six times a week for three months.C swimming twice a day.D running once a day.3 The researchers checked how well the test subjects' insulin worked by measuringA the blood sugar level in their bodies.B the length of time they could cycle at one breath.C the amount of insulin they took.D the amount of sugar their muscles could make use of.4It is recommended that diabetics maintain sufficient exercise since otherwiseA their symptoms will get worse.B the blood sugar level will go up.C the desired effect cannot be achieved.D their condition will be out of control.5 It can be seen from the passage that most diabetics are ignorant ofA the necessity of watching their diet.B the significance of regular exercise.C the need to control their weight.D the consequences of taking too much insulin[参考答案]6. A 7. B 8. D 9. C 10. BChronic Diseases：The World's Leading KillerChronic diseases are the leading cause of death in the world.Yet health experts say these conditions are often the most preventable.Chronic diseases include heartdisease,stroke,cancer,diabetes（糖尿病）and lung disorders.The World Health Organization says chronic diseases lead to about seventeen million early deaths each year.This United Nations agency expects more than three hundred eighty million people to die of chronic diseases by two thousand fifteen.It says about eighty percent of the deaths will happen in developing nations.The WHO says chronic diseases now cause two-thirds of all deaths in the Asia-Pacific area.In ten years it could be almost three-fourths.People are getting sick in their most economically productive years.In fact,experts say chronic diseases are killing more middle-aged people in poorer countries than in wealthier ones.The WHO estimates that chronic diseases will cost China alone more than five hundred thousand million dollars in the next ten years.That estimate represents the costs of medical treatment and lost productivity.Russia and lndia are also expected to face huge economic losses.Kim Hak-Su is the head of the United Nations Economic and Social Commission for Asia and the st ween in Bangkok he presented a WHO report on the problem.It says deaths from chronic diseases have increased largely as the result of economic gains in many countries.The report details the latest findings from nine countries.They includeBrazil,Britain,Canada,China,India and Nigeria.The others are Pakistan,Russia and Tanzania.Mister Kim says infectious and parasitic（寄生的）diseases have until recently been the main killers in Asia and the Pacific.But he says they are no longer the major cause of death in most countries.Health officials say as many as eighty percent of deaths from chronic diseases could be prevented.They say an important tool for governments is to restrict the marketing of alcohol and tobacco to young people.Also,more programs are needed to urge healthy eating and more physical activity.UN officials aim through international action to reduce chronic-disease deaths by two percent each year through two thousand fifteen.They say meeting that target could save thirty-six million lives.That includes twenty-five million in Asia and the Pacific.1.How many people in developing countries will probably die of chronic diseases by 2015？A.More than 17 million.B.More than 380 million.C.More than 304 million.D.More than 25 million.2.Due to chronic diseases China will have to faceA.great pressure from other countries.B.a limited economic market.C.a shortage of the labor force.D.huge economic losses.3.Which can NOT be learned from the passage？A.Many chronic-disease deaths are preventable.B.Chronic diseases are the major cause of death in most countries.C.Chronic diseases are killing more middle-aged people than elderly people.D.Eonomic gains in many countries have contributed to chronic-disease deaths.4.Until recently the main killers in Asia and the Pacific have beenA.economic gains.B.lost productivity.C.chronic diseases.D.infectious and parasitic diseases.5.Which is NOT mentioned as a way to prevent chronic-disease deaths？A.Timely medical treatment.B.Healthy eating.C.More physical activity.D.Reduction in drinking and smoking.答案：36.C37.D38.C39.D40.ACrystal EarOne 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——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 powerful,too.You will hear sounds your ears have been missingfor 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）。