2019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。小编为您整理阅读理解分析5道练习题，附答案解析，供您备考练习。

1、Human Heart Can Make New Cells
Solving a longstanding mystery, scientists have found that the human heart continues to generate new cardiac cells throughout the life span, although the rate of new cell production slows with age.
The finding, published in the April 3 issue of Science, could open a new path for the treatment of heart diseases such as heart failure and heart attack, experts say.
"We find that the beating cells in the heart, cardiomyocytes, are renewed," said lead researcher Dr. Jonas Frisen, a professor of stem cell research at the Karolinska Institute in Stockholm, Sweden. "It has previously not been known whether we were limited to the cardiomyocytes we are born with or if they could be renewed," he said.
The process of renewing these cells changes over time, Frisen added. In a 20-year-old, about 1 percent of cardiomyocytes are exchanged each year, but the turnover rate decreases with age to only 0. 45 percent by age 75,
"If we can understand how the generation of new cardiomyocytes is regulated, it may be potentially possible to develop pharmaceuticals that promote this process to stimulate regeneration after for example, a heart attack, "Frisen said.
That could lead to treatment that helps restore damaged hearts.
A lot of people suffer from chronic heart failure," noted co-author Dr. Ratan Bhardwaj.
Ratan Bhardwaj, also from the Karolinska Institute. "Chronic heart failure arises from heart cells dying," he said.
With this finding, scientists are "opening the door to potential therapies to having ourselves heal ourselves," Bhardwaj said. "Maybe one could devise a pharmaceutical agent that would make heart cells make new and more cells to overcome the problem they are facing. "
But barriers remain. According to Bhardwaj, scientists do not yet know how to increase heart cell production to a rate that would replace cells faster than they are dying off, especially in older patients with heart failure. In addition, the number of new cells the heart produces was estimated using healthy hearts-whether the rate of cell turnover in diseased hearts is the same remains unknown.
The finding could prove to be useful to ____.【单选题】

A.the analysis of cardiac cells

B.the prevention of chronic diseases

C.the treatment of heart disease

D.the study of longstanding mysteries

正确答案:C

答案解析:根据是第二段中：The finding，…，could open a new path for the treatment of heart diseases这一研究成果将为心脏病的医治开拓新的途径。

1、Youth Emancipation in Spain
The Spanish Government is so worried about the number of young adults still living with their parents that it has decided to help them leave the nest.
Around 55 percent of people aged 18 ～ 34 in Spain still sleep in their parents' home, says the latest report from the country's state - run Institute of Youth.
To coax (劝诱) young people from their homes, the Institute started a "Youth Emancipation(解放)" programme this month. The programme offers guidance in finding rooms and jobs.
Economists blame young people's family dependence on the precarious (不稳定的) labour market and increasing housing prices. Housing prices have risen 17 percent a year since 2000.
Cultural reasons also contribute to the problem, say sociologists (社会学家). Family ties in south Europe (Italy, Portugal and Greece) are stronger than those in middle and north Europe, said Spanish sociologist Almudena Moreno Minguez in her report "The Late Emancipation of Spanish Youth: Key for Understanding".
"In general, young people in Spain firmly believe in the family as the main body around which their private life is organized," said Minguez.
In Spain, especially in the countryside, it is not uncommon to find entire groups of aunts, uncles, cousins, nieces and nephews (外甥／侄子) all living on the same street. They regularly get together for Sunday dinner.
Parents tolerance is another factor. Spanish parents accept late - night partying and are wary of setting bedtime rules.
"A child can arrive home at whatever time he wants. If parents complain he'll put up a fight and call the father a fascist," said Jose Antonio Gomez Yanez, a sociologist at Carlos Ill University in Madrid.
Mothers willingness to do children's household chores (家务) worsens the problem. Dionisio Masso, a 60 - year - old in Madrid, has three children in their 20s, The eldest 28, has a girlfriend and a job. But life with mum is good.
"His mum does the wash and cooks for him, in the end, he lives well," Masso said.
The phrase "wary of" in paragraph 8 could be best replaced by ______.【单选题】

A.tired of

B.afraid of

C.worried about

D.cautious about

正确答案:D

答案解析:本题是词义题，难度不大，第八段谈到，西班牙的父母可以接受孩子们的深夜聚会，小心翼翼地制定睡觉时间，D是“小心谨慎…”，答案是D。

1、Youth Emancipation in Spain
The Spanish Government is so worried about the number of young adults still living with their parents that it has decided to help them leave the nest.
Around 55 percent of people aged 18 ～ 34 in Spain still sleep in their parents' home, says the latest report from the country's state - run Institute of Youth.
To coax (劝诱) young people from their homes, the Institute started a "Youth Emancipation(解放)" programme this month. The programme offers guidance in finding rooms and jobs.
Economists blame young people's family dependence on the precarious (不稳定的) labour market and increasing housing prices. Housing prices have risen 17 percent a year since 2000.
Cultural reasons also contribute to the problem, say sociologists (社会学家). Family ties in south Europe (Italy, Portugal and Greece) are stronger than those in middle and north Europe, said Spanish sociologist Almudena Moreno Minguez in her report "The Late Emancipation of Spanish Youth: Key for Understanding".
"In general, young people in Spain firmly believe in the family as the main body around which their private life is organized," said Minguez.
In Spain, especially in the countryside, it is not uncommon to find entire groups of aunts, uncles, cousins, nieces and nephews (外甥／侄子) all living on the same street. They regularly get together for Sunday dinner.
Parents tolerance is another factor. Spanish parents accept late - night partying and are wary of setting bedtime rules.
"A child can arrive home at whatever time he wants. If parents complain he'll put up a fight and call the father a fascist," said Jose Antonio Gomez Yanez, a sociologist at Carlos Ill University in Madrid.
Mothers willingness to do children's household chores (家务) worsens the problem. Dionisio Masso, a 60 - year - old in Madrid, has three children in their 20s, The eldest 28, has a girlfriend and a job. But life with mum is good.
"His mum does the wash and cooks for him, in the end, he lives well," Masso said.
The "Youth Emancipation" programme aims at helping young people ______.【单选题】

A.live in an independent way

B.fight for freedom

C.fight against social injustice

D.get rid of family responsibilities

正确答案:A

答案解析:本题难度不大，虽然题干词汇在第三段出现，但只要认真从文章第一段读起，找到答案依据不难。答案依据在第一段，it has to decided to help them to leave the nest，帮助年轻人独立地生活，所以答案是A。

1、The motorcar
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, however, think the auto is here to stay. They hold that the car will remain a leading means of urban travel in the foreseeable future.
The motorcar will undoubtedly. change significantly over the next 30 years. It should become smaller, safer, and more economical, and should not be powered by the gasoline engine. The car of the future should be far more pollution-free than present types.
Regardless of its power source, the auto in the future will still be the main problem in urban traffic congestion. One proposed solution to this problem is the automated highway system.
When the auto enters the highway system, a retractable (可伸缩的) arm will drop from the auto and make contact with a rail, which is similar to those powering subway trains electrically. Once attached to the rail, the car will become electrically powered from the system, and control of the vehicle will pass to a central computer. The computer will then monitor all of the car's movements.
The driver will use a telephone to dial instructions about his destination into the system. The computer will calculate the best route, and reserve space for the car all the way to the correct exit from the highway. The driver will then be free to relax and wait for the buzzer (蜂鸣器) that will warn him of his coming exit. It is estimated that an automated highway will be able to handle 10,000 vehicles per hour, compared with the 1,500 to 2,000 vehicles that can be carried by a present-day highway.
In an automated highway system, all the driver needs to do is ____.【单选题】

A.keep in the right lane

B.wait to arrive at his destination

C.keep in constant touch with the computer center

D.inform the system of his destination by phone

正确答案:D

答案解析:文章的最后一段the driver will use a telephone to dial instructions about his destination into system说明本题的答案为D，即在计算机监控系统下，司机所做的不过是通过电话告诉系统自己的目的地而已。

1、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.
To make electrochromic windows change color, what is applied to the window glass?
【单选题】

A. Electricity.

B.Tungsten oxide.

C.A battery.

D.A voltage.

正确答案:B

答案解析:第五段第二句提供了答案。a sheet of glass coated with thin layers of chemical compound such as tungsten oxide中的coated是“涂上一层薄薄的……”的意思。