2020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、Smallpox virusIt\'s now a fair bet that we will never see the total extinction of the smallpox virus. The idea was to cap the glorious achievement of 1980, when smallpox was eradicated in the wild, by destroying the killer virus in the last two labs that are supposed to have it—one in the US and one in Russia. If smallpox had truly gone from the planet, what point was there in keeping these reserves?In reality, of course, it was naive to imagine that everyone would let go of such a potential weapon. Undoubtedly several nations still have a few vials. And the last “official” stocks of live virus bred mistrust of the US and Russia, for no obvious gain.Now American researchers have found an animal model of the human disease, opening the way for tests on new treatments and vaccines. So one again there\'s a good reason to keep the virus—just in case the disease puts in a reappearance.How do we deal with the mistrust of the US and Russia? Simple. Keep the virus ____ international auspices in a well-guarded UN laboratory that\'s open to all countries. The US will object, of course, just as it rejects a multilateral approach to just about everything. But it doesn\'t mean the idea is wrong. If the virus is useful, then let\'s make it the servant of all humanity—not just a part of it.【单选题】

A.under

B.in

C.on

D.or

正确答案:A

答案解析:此题考查固定搭配。under?the?auspices:赞同，支持。故A为正确答案。

2、She could fix the machine without referring to the instructions. 【单选题】

A.understanding

B.observing

C.consulting

D.obtaining

正确答案:C

答案解析:refer to和consult词义相同，表示“参考、查阅”；understand:懂得、熟悉；observe:观察、观测、遵守；obtain:获得、得到。

3、Waste Not, Want Not1 Bob and Clara Darlington, who own and run a farm in the North of England, have always looked for new ways of making money out of the produce they grow. Their SUCCESS began when they established a shop on their farm, so that people could come and buy fresh vegetables directly from them.2 The business was an immediate SUCCESS, and soon scored top marks in a competition set up by the Farm Retail Association to find the best farm shop in the country. The Association\'s inspectors found the Darling tons\' shop offered excellent service and value for money as well as quality fruit and vegetable.3 Clara Darlington is a trained chef and, in addition to a range of home-grown foods and other local produce, she began offering a variety of prepared meals which she had made herself in the farmhouse kitchen. A small cafe alongside the farm shop was soon added, with everything that visitors could taste on the menu also being for sale in the shop.4 Clara admits that starting the business was expensive, and she has worked very hard, but maintains that if the product is good, the public recognize this and buy it. "I aim to offer the highest quality to our customers, whether they come in for a loaf of bread, or take a whole dinner-party menu. I take it as a compliment if people take home one of my dishes to serve to their family and friends and get away with pretending they made it themselves. "5 So it was that the couple realized that they had a surplus of misshapen or damaged vegetables grown on the farm which were unsuitable for selling in the shop. Clara, not wishing to see them get thrown away, decided to turn them into soup.6 The soup met with the immediate approval of customers to the shop and Clara now produce different varieties. She spent much of the summer traveling up and down to London by rail, doing presentations of the soups. As a result, they are now served in first-class railway restaurant cars belonging to three companies as well as being stocked by a number of high-class London stores.Bob and Clara Darlington established a shop to ____. 【单选题】

A.sell fresh vegetables

B.sell as much as possible

C.offer a variety of prepared meals

D.turn them into soup

E.fill a gap in the market

F.promote her soups

正确答案:A

答案解析:文章第一段提到他们在农场建了一个商店，…people could come and buy fresh vegetables directly from them他们可以直接购买新鲜蔬菜了。

4、Smart Window Windows not only let light in to cut down an electricity use for lighting, but the light coming through the window also provides heat. However, windows are not something people typically associate with being a cutting edge technology. Researchers are now working on new technologies that enable a window to quickly change from clear to dark and anywhere in between with a flip of a switch. "It took us a long time to figure out what a window really is," says Claes Granqvist. He\'s a professor of solid-state physics at Uppsala University in Sweden. "It\'s contact with the outside world. You have to have visual contact with the surrounding world to feel well. " So, windows and natural light are important for improving the way people feel when they\'re stuck indoors. Yet, windows are the weak link in a building when it comes to energy and temperature control. In the winter, cold air leaks in. When it\'s hot and sunny, sunlight streams in. All of this sunlight carries lots of heat and energy. And all of this extra heat forces people to turn on their air conditioners. Producing blasts of cold air, which can feel so refreshing, actually suck up enormous amounts of electricity in buildings around the world. Windows have been a major focus of energy research for a long time. Over the years, scientists have come up with a variety of strategies for coating, glazing, and layering windows to make them more energy efficient. Smart windows go a step further. They use chromogenic technologies which involve changes of color. Electrochromic windows use electricity to change color. For example, a sheet of glass coated with thin layers of chemical compound such as tungsten oxide works a bit like a battery. Tungsten oxide is clear when an electric charge is applied and dark when the charge is removed, that is, when the amount of voltage is decreased, the window darkens until it\'s completely dark after all electricity is taken away. So applying a voltage determines whether the window looks clear or dark. One important feature that makes a smart window so smart is that it has a sort of "memory. " All it takes is a small jolt of voltage to turn the window from one state to the other. Then, it stays that way. Transitions take anywhere from 10 seconds to a few minutes, depending on the size of the window. The development of smart windows could mean that massive air conditioning systems may no longer need. "In the future," Granqvist says, "our buildings may look different. When are windows the weak link in a building? 【单选题】

A. In the cold winter.

B.In the hot summer.

C.When air conditioners are turned on.

D.Both A and B.

正确答案:D

答案解析:短文第三段的第一句说：windows are the weak link in a building，接下来是对这句话分寒冬和炎夏做了说明，所以D是正确选择。

5、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 developed world these diseases are far less deadly today, and in some cases have almost disappeared. A number of ____ 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.improvements

B.factors

C.jobs

D.measures

正确答案:B

答案解析:冒号后面列举的内容不能统一用其他几个词概括，只能用factor。