2024年职称英语考试《卫生类》考试共65题，分为单选题和多选题和判断题和计算题和简答题和不定项。小编每天为您准备了5道每日一练题目（附答案解析），一步一步陪你备考，每一次练习的成功，都会淋漓尽致的反映在分数上。一起加油前行。

1、Blasts from the Past 1 Volcanoes were more destructive in ancient history. Not because they were bigger, but because the carbon they released wiped out life with greater ease. 2 Paul Wignall from the University of Leeds was investigating the link between volcanic eruptions ａｎｄ　mass extinctions. Not all volcanic eruptions killed off large numbers of animals, but all the mass extinctions over the past 300. million years coincided with huge formations of volcanic rock. To his surprise, the older the massive volcanic eruptions were, the more damage they seemed to do. 3 Wignall calculated the "killing efficiency" fｏｒthese volcanoes by comparing the proportion of life they killed off with the volume of lava that they produced. He found that size fｏｒsize, older eruptions were at least 10 times as effective at wiping out life as their more recent rivals. 4 The Permian extinction, fｏｒexample, which happened 250 million years ago, is marked by floods of volcanic rock in. Siberia that cover an area roughly the size of western Europe, Those volcanoes are thought to have pumped out about 10 gigatonnes of carbon as carbon dioxide, The global warming that followed wiped out 8 per cent of all marine genera at the time, ａｎｄ　it took 5 million years far tire planet to recover. 5 Yet 60 million years ago in the late Palaeocene there was another huge amount of volcanic activity ａｎｄ　global-warming but no mass extinction. Some animals did disappear but things returned to normal within ten thousands of years, "The most recent ones hardly have an effect at all," Wignall says. He ignored the extinction which wiped out the dinosaurs at the end of the Cretaceous, 65 million years ago, because many scientists believe it was primarily caused by the impact of an asteroid. 6 Wignall thinks that older volcanoes had more killing power because more recent life forms were better adapted to dealing with increased levels of C02 Ocean chemistry may also have played a role. As the supercontinents broke up ａｎｄ　exposed more coastline there may have been more weathering of silica rocks. This would have encouraged the growth of phytoplankton in the oceans, increasing the amount of C02 absorbed from the atmosphere. 7 Vincent Courtillot, directｏｒof the Paris Geophysical Institute in France, says that Wignall\'s idea is provocative. But he says it is incredibly hard to do these sorts of calculations. He points out that the killing power of volcanic eruptions depends on how long they fasted. ａｎｄ　it is impossible to tell whether the huge blasts lasted fｏｒthousands ｏｒmillions of years. 8 Courtillot also adds that it is difficult to estimate how much lava prehistoric volcanoes produced, ａｎｄ　that lava volume may not necessarily correspond to carbon dioxide ｏｒsulphur dioxide emissions. Paragraph 5____ 【单选题】

A.Killing Power of Ancient Volcanic Eruptions

B.Association of Mass Extinction with Volcanic Eruption

C.Calculation of the Killing Power of Older Eruptions

D.A Mass Extinction

E.Volcanic Eruptions That Caused No Mass Extinction

F.ccounting fｏｒthe Killing Power of Older Eruptions

正确答案:E

答案解析:Volcanic eruptions that caused no mass extinction：没有造成大量生物灭绝的火山爆发。上面讲到了“较早的火山喷发在灭绝生物方面的效率至少是后来的火山喷发的10倍”。第五段就是对“后来的火山喷发”的灭绝生物能力不行的证明。

2、Hurricanes1 Did you know that before 1950, hurricanes had no names? They were simply given numbers. The first names ware simply Alpha, Bravo, Charlie, etc. But in 1953, female names were given because of the unpredictability factｏｒof the storms. In 1979, realizing the sexist nature of such named, the lists were expanded to include both men ａｎｄ　women.2 Hurricanes ａｎｄ　typhoons are the same things. If they form in the Atlantic, we call these strong storms hurricanes, from the West Indian word hurricane, meaning "big wind. " ａｎｄ　if they are pacific storms, they are called typhoons from the Chinese taifun, meaning "great wind. " To be classified as a hurricane, the storm must have maximum winds of at least 75 mph. These storms are big, many hundreds of miles in diameter.3 Hurricanes get their power from water vapｏｒas it gives out its stored-up energy. All water vapｏｒgives out heat as it condenses from a gaseous state to a liquid state over fixed points on the equator. To make a hurricane, you must have extremely wet, warm air, the kind of air that can only be found in tropical regions.4 Scientists have determined that the heat given out in the process of water condensation can be as high as 95 billion kilowatts per hours. In just one day alone, the storm can produce more energy than many industrialized nations need in an entire year! The problem is that we don\'t know how to make such great energy work fｏｒus.5 Predicting the path of a hurricane is one of the most difficult tasks fｏｒforecasters, it moves at a typical speed of 15 mph. But not always. Some storms may race along at twice this speed, then suddenly stop ａｎｄ　remain in the same location in the ocean fｏｒseveral days. It can be maddening if you live in a coastal area that may be hit.6 The biggest advance in early detection is continuous watch from weather satellites. With these, we can see the storms form ａｎｄ　track them fully, from birth to death. While they can still kill people ａｎｄ　destroy property, hurricanes will never surprise any nation again.Paragraph 2____【单选题】

A.A Short History of Naming Hurricanes

B.Harnessing the Hurricane Energy

C.Difficulty in Forecasting the Course of a Hurricane

D.Huge Energy Stored in a Hurricane

E.Forecast a Hurricane Through Satellite Watching

F.No Much Difference Between Hurricane ａｎｄ　Typhoon

正确答案:F

答案解析:由于大风发生的地点不同，其名称也不同。发生在大西洋的飓风，采用西印度语的语音，称为hurricane，发生在太平洋的飓风采用汉语的语音，称为typhoon。其实，hurricane和typhoon并没有什么不同。

3、Life Expectancy in the Last Hundred YearsA hundred years ago, life expectancy in developed countries was about 47 in the early 21st century, men in the United States ａｎｄ　the United Kingdom can expect to live to about 74. Women to about 80, ａｎｄ　these ages are rising all the time. What has brought about these changes? When we look at the life span of people 100 years ago, we need to look at the greatest killers of the time. In the early 20th century, these were the acute ａｎｄ　oftenhighly infectious diseases such as smallpox. Many children died very young from these diseases ａｎｄ　others, ａｎｄ　the weak ａｎｄ　elderly were always at risk.In the ____ world these diseases are far less deadly today, ａｎｄ　in some cases have almost disappeared. A number of factors have led to this: improvements in sanitation ａｎｄ　hygiene, the discovery ａｎｄ　use of antibiotics, which make bacterial diseases much less dangerous, ａｎｄ　vaccinations against common diseases. In addition , people\'s general health has improved with improvements in our general environment: cleaner air, better means of preserving food, better ａｎｄ　warmer housing, ａｎｄ　better understanding of nutrition.Genetically, we should all be able to live to about 85 but while people do live longer today, there are still some big killers around that are preventing US from consistently reaching that age. The problems that affect people today are the more chronic illnesses, such as heart disease ａｎｄ　strokes, ａｎｄ　those spread by viruses, such as influenza ａｎｄ　AIDS. Of course, cancer is a huge killer as well. In most cases these diseases affect older people, but there are worrying trends in the developed world with problems such as obesity leading to more heart disease ａｎｄ　illnesses such as diabetes at younger ages.The killers today can be classed as "lifestyle diseases", which means that it may be possible to halt their progress.【单选题】

A.developed

B.less developed

C.undeveloped

D.developing

正确答案:A

答案解析:本句后部分说在一些国家这些病已经消失，通过常识得知应该是发达国家。

4、She is very conscientious about her work.【单选题】

A.worried

B.careful

C.anxious

D.nervous

正确答案:B

答案解析:conscientious：认真的、谨慎的，和careful（细心的）意思相近；worried：发愁的、焦虑的；anxious；焦虑的、渴望的；nervous:神经性的、紧张的。

5、The IcemanOn a September day in 1991, two Germans were climbing the mountains between Austria ａｎｄ　Italy. High up on a mountain pass, they found the body of a man lying on the ice. At that height (10,499 feet, ｏｒ3 ,200 meters) , the ice is usually permanent, but 1991 had been an especially warm year. The mountain ice had melted more than usual ａｎｄ　so the body had come to the surface.It was lying face downward. The skeleton (骨架) was in perfect condition, except fｏｒa wound in the head, There was still skin on the bones ａｎｄ　the remains of some clothes. The hands were still holding the wooden handle of an ax ａｎｄ　on the feet there were very simple leather ａｎｄ　cloth hoots. Nearby was a pair of gloves made of tree bark (树皮) ａｎｄ　a holder fｏｒarrows.Who was this man? How ａｎｄ　when had he died? Everybody had a different answer to these questions. Some people thought that it was from this century, perhaps the body of a soldier who died in World War I, since several soldiers had already been found in the area. A Swiss woman believed it might be her father, who had died in those mountains twenty years before ａｎｄ　whose body had never been found. The scientists who rushed to look at the body thought it was probably much older, maybe even a thousａｎｄ　years old.With modern dating techniques, the scientists soon learned that the Iceman was about 5,300 years old. Born in about 3300 B. C. , he lived during the Bronze Age in Europe. At first scientists thought he was probably a hunter who had died from an accident in the high mountains. More recent evidence, however, tells a different story, A new kind of X - ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin, but it caused internal damage ａｎｄ　bleeding. He almost certainly died from this wound, ａｎｄ　not from the wound on the back of his head. This means that he was probably in some kind of a battle. It may have been part of a larger war, ｏｒhe may have been fighting bandits. He may even have been a bandit himself.By studying his clothes ａｎｄ　tools, scientists have already learned a great deal from the Iceman about the times he lived in. We may never know the full story of how he died, but he has given us important clues to the history of those distant times.All the following are assumptions once made about the Iceman EXCEPT ______.【单选题】

A.he was a soldier in World War I

B.he was a Swiss woman\'s long - lost father

C.he was born about a thousａｎｄ　years ago

D.he came from Italy

正确答案:D

答案解析:本题有一定难度，首先要读懂题干，好多考生因为没有读懂而做错。第三段谈到了对冰人的各种猜测：有人认为他是一战的士兵；一位瑞士女人坚信冰人是她二十年前死在山里的父亲，科学家们认为他大概有一千年的历史了，惟独没有提到冰人是意大利人的猜测，所以答案是D。