2022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、When a disease of epidemic proportions rips into the populace, scientists immediately get to work, trying to locate the source of the affliction ａｎｄ　find ways to combat it. Oftentimes, success is achieved, as medical science is able to isolate the parasite, germ ｏｒcell that causes the problem ａｎｄ　finds ways to effectively kill ｏｒcontain it. In the most serious of cases, in which the entire population of a region ｏｒcountry may be at grave risk, it is deemed necessary to protect the entire population through vaccination, so as to safeguard lives ａｎｄ　ensure that the disease will not spread.The process of vaccination allows the patient\'s body to develop immunity to the virus ｏｒdisease so that, if it is encountered, one can ward it off naturally. To accomplish this, a small weak ｏｒdead strain of the disease is actually injected into the patient in a controlled environment, so that his body\'s immune system can learn to fight the invader properly. Information on how to penetrate the disease\'s defenses is transmitted to all elements of the patient\'s immune system in a process that occurs naturally, in which genetic information is passed from cell to cell. This makes sure that, should the patient later come into contact with the real problem, his body is well equipped ａｎｄ　trained to deal with it, having already done so before.There are dangers inherent in the process, however. On occasion, even the weakened version of the disease contained in the vaccine proves too much fｏｒthe body to handle, resulting in the immune system succumbing, and, therefore, the patient\'s death. Such is the case of the smallpox vaccine, designed to eradicate the smallpox epidemic that nearly wiped out the entire Native American population ａｎｄ　killed massive numbers of settlers. Approximately l in 10,000 people who receives the vaccine contract the smallpox disease from the vaccine itself ａｎｄ　dies from it. Thus, if the entire population of the United States were to receive the Smallpox Vaccine today, 3,000 Americans would be left dead.Fortunately, the smallpox virus was considered eradicated in the early 1970\'s, ending the mandatory vaccination of all babies in America. In the event of a re-introduction of the disease, however, mandatory vaccinations may resume, resulting in more unexpected deaths from vaccination. The process, which is truly a mixed blessing, may indeed hide some hidden curses.The purpose of the authｏｒin writing this passage is____.【单选题】

A.to comment ａｎｄ　criticize

B.to demonstrate ａｎｄ　argue

C.to interest ａｎｄ　entertain

D.to explain ａｎｄ　inform

正确答案:D

答案解析:主旨题。题干考查的是作者写作本文的目的。通过阅读整篇文章可以看出，作者的语气是客观的，主要是解释和说明信息。选项D与此相符合，故正确答案为D。选项A和B属于议论文的目的。本文是科普性文章，因此选项C“为了引起关注和娱乐”也不符合题意。

2、Obviously these people can be relied on in a crisis.【单选题】

A.lived on

B.depended on

C.believed in

D.joined in

正确答案:B

答案解析:显然这些人在危机关头值得依靠。本题有一定难度，考察的是基本意义，C项的干扰最大，有些考生因受汉语思维影响而选了C，rely on和depend on都有“依靠”意思，是近义词，常用过去式，C项believe in指“相信”，和答案意义有差异，最佳答案是B。

3、Ten years after the event, her death still remains a puzzle.【单选题】

A.mist

B.fog

C.secret

D.mystery

正确答案:D

答案解析:事情发生10年后，她的死因仍是个谜。本题难度较大，干扰项干扰很强，主要是C项。puzzle指“困惑，不解之谜”，和mystery“神秘的”是近义词，都是指人们还暂时没有揭开谜团。C项secret指“秘密”，是指一部分人已知道真相，所以和puzzle，mystery是有区别的，最佳答案是D。

4、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 ____ vials. ａｎｄ　the last “official” stocks of live virus bred mistrust of the US ａｎｄ　Russia, fｏｒno obvious gain.Now American researchers have found an animal model of the human disease, opening the way fｏｒtests 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 under 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.much

B.more

C.most

D.a?few

正确答案:D

答案解析:vials是复数，much不合适。另外，本句和上文都没有比较的意思，因此more和most也都不合适。故D为正确答案。

5、Cancer1. Cancer is aｇｒｏｕｐof many related diseases that begin in cells, the body\'s basic building blocks. The body is made up of many types of cells. Normally, cells grow ａｎｄ　divide to produce more cells as they are needed to keep the body healthy. Sometimes, this orderly process goes wrong. New cells form when the body does not need them, ａｎｄ　old cells do not die when they should. The extra cells form a mass of tissue called a growth ｏｒtumｏｒ肿瘤). Benign(良性的) tumors are not cancer. They can often be removed and, in most cases, they do not come back. Malignant (恶性的) tumors are cancer. Cells in malignant tumors are abnormal ａｎｄ　divide without control ｏｒorder.2. Scientists have learned that cancer is caused by changes in genes that normally control the growth ａｎｄ　death of cells. Certain lifestyle ａｎｄ　environmental factors can change some normal genes into genes that allow the growth of cancer. Many gene changes that lead to cancer are the result of tobacco use, diet, exposure to ultraviolet(紫外线的) radiation from the sun, ｏｒexposure to carcinogens (致症物) in the workplace ｏｒin the environment. Some gene alterations are inherited.3. Cancer treatment can include surgery, radiation therapy, chemotherapy(化疗), hormone therapy, ａｎｄ　biological therapy. The doctｏｒmay use one method ｏｒa combination of methods, depending on the type ａｎｄ　location of the cancer, whether the disease has spread, the patient\'s age ａｎｄ　general health ａｎｄ　other factors. Because treatment fｏｒcancer can also damage healthy cells ａｎｄ　tissues, it often causes side effects. Patients ａｎｄ　doctors generally discuss the treatment options, weighting the likely benefits of killing cancer cells ａｎｄ　the risks of possible side effects.4. Having cancer does not always mean having pain. Whether a patient has pain may depend on the type of cancer, the extent of the disease ａｎｄ　the patient\'s tolerance fｏｒpain. Most pain occurs when the cancer grows ａｎｄ　presses against bones, organs, ｏｒnerves. Pain may also be a side effect of treatment. However, pain can generally be relieved ｏｒreduced with prescription medicines ｏｒover - the - counter drugs recommended by the doctor.Paragraph 4 ______【单选题】

A.How is cancer treated?

B.Does cancer always cause pain?

C.Can cancer be prevented?

D.What is cancer?

E.How common is cancer?

F.What causes cancer?

正确答案:B

答案解析:本题有一定难度，但主要的段落主旨句是文章第四段的第一句，谈到癌症并不总是意味着疼痛，病人的疼痛程度取决于多种因素，如癌症类型，患病程度，病人对疼痛的忍受力。回来看选项，B项Does cancer always cause pain?简单概括了本段意思，是答案。