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、Importance of Children\'s Oral HealthFebruary is National Children\'s Dental(牙齿的) Health Month, but in children good oral(口部的) care is critical every day. The first comprehensive study on the nation\'s oral health, released recently by the Office of the U. S. Surgeon General, calls dental and oral diseases a "silent epidemic (流行病)", even in children. The report states that more than 51 million school hours are lost each year to dental - related illness. In fact, a recent study pointed to dental care as the most common unmet health need among American children.To help counter this, the American Academy of Periodontology (牙周病学) (AAP) is launching an effort to educate children and parents about the prevention of dental diseases in children."This is important because oral problems can impact self - esteem for children and lead to problems of eating, speaking and attending to learning," said Michael McGuire, president of the AAP.Common dental problems seen in children are cavities (龋洞) and gingivitis (龈炎), which are found in the majority of U. S. children. "When these problems are not caught early and treated, they can develop into more severe problems and cause unnecessary suffering," said McGuire. "However, much of the time, oral problems are avoidable problems."In the Rio Grande Valley in Texas, a group of more than 120 dentists(牙医) volunteers to deliver dental care to thousands of low - income children each year with its Mobile Dental Unit that travels from school to school."According to the Surgeon General\'s Report, about 37 percent of children have not had a dental visit before starting school," said McGuire. When children don\'t see dentists, they miss the opportunity to have problems caught early before they develop into larger, more expensive problems to treat, and parents miss the opportunity to learn how to promote good oral habits in their children.The low - income children are very grateful to the dentists.【单选题】

A.Right

B.Wrong

C.Not mentioned

正确答案:C

答案解析:本题有一定难度，需要通读全文，吃透原文句意。主要答案依据在文章第五段：…a group of more than 120 dentists volunteers to deliver dental care to thousands of low - income children each year，谈到志愿者每年给几千个低收入家庭的孩子治疗牙病，但没有提到孩子感激志愿者的问题，因此本题未提及，答案是C。

2、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。

3、Smoking Can Increase Depressive Symptoms in TeensWhile some teenagers may puff on cigarettes to "self-medicate" against the blues, scientists at the University of Toronto and the University of Montreal have found that smoking may actually increasedepressive symptoms in some teens."This observational study is one of the few to examine the perceived emotional benefits of smoking among teens," says lead researcher Michael Chaiton, a research associate at the Ontario Tobacco Research Unit of the University of Toronto." Although cigarettes may appear to have self-medicating ____ or to improve mood, in the long term we found that teens who started to smoke reported higher depressive symptoms. "As part of the study, some 662 high school teenagers completed up to 20 questionnaires about their use of cigarettes to affect mood. Secondary schools were selected to provide a mix of French and English participants, urban and rural schools, and schools located in high, moderate and low socioeconomic neighborhoods. Participants were divided into three groups: never smokers; smokers who did not use cigarettes to self-medicate, improve mood or physical state; smokers who used cigarettes to self-medicate. Depressive symptoms were measured using a scale that asked how felt too fired to do things: had trouble going to sleep or staying asleep; felt unhappy, sad, or depressed; felt hopeless about the future; felt vexed, antsy or tense; and worried too much about things."Smokers who used cigarettes as mood improvers had higher risks of elevated depressive symptoms than teens who had never smoked," says co-researcher Jennifer O\'Loughlin, a professor at the University of Montreal Department of Social and Preventive Medicine. "Our study found that teen smokers who reported emotional benefits from smoking are at higher risk of developing depressive symptoms."The association between depression and smoking exists principally among teens that use cigarettes to feel better. "It\'s important to emphasize that depressive symptom scores were higher among teenagers who reported emotional benefits from smoking after they began to smoke," says Dr. Chaiton.【单选题】

A.effects

B.methods

C.steps

D.directions

正确答案:A

答案解析:句中的or是“即”，也就是说，to have self-medicating加上填入的词之后的意思相当于to improve mood。四个选项中只有选项A的effects（效果）是填入空格的最合适的词。to improve mood是自我治疗的效果。其他三个选项methods、steps、directions与self-medicating连用，意思分别为“自我治疗的方法”、“自我治疗的步骤”、“自我治疗的指导”，与句子的意思不相配。

4、The firm of Bonnin and Morris in Philadelphia was probably the first American company to manufacture porcelain.【单选题】

A.silverware

B.crystal

C.china

D.linen

正确答案:C

答案解析:porcelain：瓷器，与china是同义词。silverware：银器；crystal：水晶质玻璃制品；linen:亚麻（制品）。

5、I enjoyed the play-it had a clever plot and very funny dialogues.【单选题】

A.long

B.boring

C.original

D.humorous

正确答案:D

答案解析:我喜欢这部剧一一它情节巧，对白幽默。本题难度不大，是送分题。funny指“滑稽的，有趣的”，和humorous“富有幽默感的”是近义词，A项“长的”，B项“单调的，乏味的”，C项“起初的，原来的”和答案意义差异很大，干扰性不强。