2021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、Human Heart Can Make New CellsSolving a longstanding (为时甚久的) mystery, scientists have found that the human heart continues to generate new cardiac(心脏的 ) 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 (心肌细胞), 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 I percent of cardiomyocytes are exchanged each year, but the turnover (更替) 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 (药物) 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, 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 (疗法) 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 human heart stops producing cardiac cells ______.【单选题】

A.when a person becomes old

B.as soon as a person gets sick

C.immediately after a person is born

D.once a person dies

正确答案:D

答案解析:本题有一定难度，需要吃透原文句意，答案依据是文章第一段，谈到科学家发现人一生中心脏都会不停地制造新的心肌细胞，尽管新细胞产生的速度随年龄增长而放慢，换句话说，只有人死了，心脏才会停止制造心肌细胞，回来看选项，D项和原文句意相符，是答案。

2、Would you please call my husband as soon as possible?【单选题】

A.visit

B.phone

C.consult

D.invite

正确答案:B

答案解析:麻烦您尽快给我丈夫打个电话好吗？本题难度不大，考察的是引申意义，call和phone做动词用，引申意义都有“打电话”的意思，是近义词，其他选项都是常用词汇，和答案意义差异大，最佳答案是B。

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.Instead of throwing the damaged vegetables away, the couple ____.【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:D

答案解析:第3段第1句提供了答案。

4、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.Paragraph 3____【单选题】

A.Time well spent is rewarded

B.Professional recognition is obtained

C.A necessary alternative to farming

D.Professional skills are exploited

E.Continuing investment in high standards

F.Ensuring that nothing gets wasted

正确答案:B

答案解析:该段讲到因为参与农场商店的竞赛而得到国家农场协会的认可，于是克拉拉除了自家农场种的食物和本地出产的农产品外，还开设了一家小咖啡馆顺便出售自己的农产品，农场的经营越来越专业，并得到行业的认可。

5、We\'ve seen a marked shift in our approach to the social issues.【单选题】

A.clear

B.regular

C.quick

D.great

正确答案:A

答案解析:我们已经看到在对待社会问题上我们态度的显著变化。本题难度很大，考生要重点研究。本题考查引申意义。marked的引申意义指“显著的”，和clear的引申意思“显著的”是同义词，D项great“极大的”干扰较大，有考生选择D，但最佳答案是A。