2021年职称英语考试《综合类》考试共65题，分为单选题。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、Gun Rights in the USImmediately after the shooting at Virginia Tech University, Americans gathered to mourn (致哀) the dead. The president and the state governer both hurried there to share the grief. But the majority of Americans still cling to their right to own weapons.Strictly speaking, the US is not the only country here gun violence has destroyed lives, families and communities in everyday circumstance. But the US is one of the few countries that seem unwilling and politically incapable of doing anything serious to stop it.In countries like Britain and Canada, the government adopted strict gun control soon after serious gun violence incidents. US leaders, however, are held hostage by the gun lobby (院外活动集团) and the electoral (选举) system.The powerful National Rifle Association, the major supporter of gun rights in the US, is too strong for any party to take on. Most Republicans oppose gun control anyway. Over the years, the Democrats have found that they can either campaign for gun control or win power, not both, they prefer power.According to the US Bureau of Justice Statistics, firearm (火器) incidents accounted for nine percent of the 4.7 million violent crimes in 2005. So although opinion polls show most Americans want stricter gun laws, many people don\'t want to give up their arms they keep to protect themselves.Dave Hancock, a Virginia gun lover, is one example. In an interview he said, "If one professor in the Virginia incident had been carrying a legal weapon, they might have been able to ____ all this. "In his opinion, the massacre (大屠杀) is an argument for more people to carry weapons, not fewer.Americans\' clinging to the right to bear arms is not just a fear of crime, but a mistrust of government, commented UK\'s Guardian newspaper.One Virginia resident, who had a permit to carry a concealed (隐藏的) firearm, told the Guardian that it was every American\'s responsibility to have a gun."Each person," he said, "should not rely solely on the government for protection."【单选题】

A.stop

B.cover

C.shoot

D.interrupt

正确答案:A

答案解析:本题有一定难度，需要认真阅读文章，理解好句意。文章此处是说“对于弗吉尼亚校园惨案来说如果当时有教授拥有合法枪支的话，会阻止惨剧的发生”，应选择“阻止”的意思，最佳答案是A。

2、Practically all animals communicate either through sounds or through soundless codes.【单选题】

A.Certainly

B.Probably

C.Almost

D.Absolutely

正确答案:C

答案解析:差不多所有动物都能或通过声音或通过无声的方式进行交流。本题有一定难度，虽然选项都是常用副词，但干扰项干扰较大。practically和almost都有“几乎，差不多”的意思，是近义词。A项指“肯定地”，B项指“可能”，D项指“绝对地”，最佳答案是C。

3、Why Is the Native Language Learnt So Well?How does it happen that children learn their mother tongue so well? When we compare them with adults learning a foreign language, we often find this interesting fact. A little child without knowledge or experience often succeeds in a complete mastery of the language. A grown-up person with fully developed mental powers, in most case, may end up with a faulty and inexact command. What accounts for this difference?Despite other explanations, the real answer in my opinion lies partly in the child himself, partly in the behavior of the people around him. In the first place, the time of learning the mother tongue is the most favorable of all, namely, the first years of life. A child hears it spoken from morning till night and, what is more important, always in its genuine form, with the right pronunciation, right intonation, and right use of words and right structure. He drinks in all the words and expressions, which come to him in a flash, ever-bubbling spring. There is no resistance: there is perfect assimilation.Then the child has, as it were, private lessons all the year round, while an adult language-student has each week a limited number of hours, which he generally shares with others. The child has another advantage: he hears the language in all possible situations, always accompanied by the right kind of gestures and facial expressions. Here there is nothing unnatural, such as is often found in language lessons in schools, when one talks about ice and snow in June or scorching heat in January. And what a child hears is generally what immediately interests him. Again and again, when his attempts at speech are successful, his desires are understood and fulfilled.Finally, though a child\'s "teachers" may not have been trained in language teaching, their relations with him are always close and personal. They take great pains to make their lessons easy.Plenty of practice in listening during the first years of life partly ensures children’s success of learning their mother tongue.【单选题】

A.Right

B.Wrong

C.Not mentioned

正确答案:A

答案解析:题干大意：早年大量的听力练习是儿童成功学习母语的一个原因。利用答案线索词the first years of life，我们可以很快在第二段第二句中发现相关句。该句句意：首先，一生的头几年是学习母语的最佳时间。所以该问题句的说法“正确”。

4、A Carrot a Day Keeps Cancer AwayAmong all the malignancies, lung cancer is the biggest killer: more than 100,000 Americans a year die of the disease. Giving up smoking is one of obvious way to reduce the risk, but another answer may lie in the kitchen. According to a new report, even heavy smokers may be protected from developing lung cancer by a simple dietary measure: a daily portion of carrots, spinach or any other vegetable or fruit containing a form of vitamin A called carotene.The finding, published in the British medical journal The Lancet, is part of a long-range investigation of diet and disease. Since 1957 a team of American researchers has monitored the dietary habits and medical histories of 2,000 middle-aged men employed by the Western Electric Co. in Chicago. Led by Dr. Richard Shelelle of Chicago\'s Rush-Presbyterian, St. Luke\'s Medical Center, the researchers recently began to sort out the links between the subjects\' dietary patterns and cancer. Other studies of animals and humans have suggested that vitamin A offers some protection against lung cancer. The correlation seemed logical, since vitamin A is essential for the growth of the epithelial (上皮的) tissue that lines the airways of the lungs.Vegetables: But the earlier research did not distinguish between two different forms of the vitamin. "Preformed" vitamin A, known as retinol, is found mainly in liver and dairy products like milk, cheese, butter and eggs. But vitamin A is also made in the body from carotene, which is abundant in a variety of vegetables and fruits, including carrots, spinach, squash, tomatoes, sweet potatoes and apples.In the Western Electric study, Shekelle and his colleagues found little correlation between the incidence of lung cancer and the consumption of foods containing preformed vitamin A, but when they examined the data on carotene intake, they discovered a significant relationship. Among the488 men who had the lowest level of carotene consumption, there were fourteen cases of lung cancer, in a group of the same size that ate the most carotene, only two cases developed. The apparent protective effect of carotene held up even for longtime smokers but to a lesser degree.Further studies will be necessary before the link between lung cancer and carotene can be firmly established. In the meantime, researchers warn against taking large numbers of vitamin A pills, because the tablets contain a form of the chemical that can be extremely toxic in high doses. Instead, they advise a well-balance diet that includes foods rich in carotene. For a smoker, a half-cup of carrots every day might possibly make the difference between life and death.Why did Dr. Shelelle think the correlation between vitamin A and lung cancer protection was logical?【单选题】

A.Vitamin A causes lung cancer.

B.Vitamin A cures lung cancer.

C.Vitamin A is necessary for the growth of the tissue lining the lungs.

D.Vitamin A is a molecule that prevents smoke from being inhaled.

正确答案:C

答案解析:根据第2段最后一句，“这种关系符合逻辑，因为维生素A对于排列在肺部呼吸通道的上皮组织结构的生长是必不可少的”。

5、EducationWhen a teacher finds a way to make a real difference in the students\' lives that\'s what education is all about. Let me tell you a story. Back in 1944 we had a new student named Roger, he was the first black student in our school, and everyone had some pretty ignorant views on the subject of black people . The other kids weren\'t bad children; they were just copying their parents, and well, I\'m afraid most of their parents had some pretty ignorant views on the subject of black people . But as you know, when you\'re twelve years old, you\'re just starting to have your own opinions about things, and I knew this could be a very important moment in their education. I knew I could make a real difference, ____ , but to all the other kids, too, if just handled it the right way.I decided I had to try to make Roger into someone special. Not like a teacher\'s pet, I wanted the other children to start seeing him as a human being , not just a dark shape in the back of the room. So I went after him with questions in every class. He was a bright little boy, so it was easy enough for me to establish him as a smart person with real value. I was pretty pleased, because I could see Roger becoming more confident, and although the other kids were still not very friendly, at least they stopped being so nasty to him.But you know what really changed everything? One day I could see Roger\'s mind was wandering: and without thinking I threw an eraser in his direction. I only meant to get his attention, but the eraser hit his hand and sent his pencil flying. The whole class roared! And afterwards, of course, all the kids went up to Roger to laugh with him about it . That\'s how he became an individual, someone special, to talk to and make friends with and that\'s how I became "Dead - Eye Bean".【单选题】

A.was giving him a hard time

B.had some pretty ignorant views on the subject of black people

C.while they were enjoying the same class

D.not only to little Roger

E.start seeing him as a human being

F.all the kids went up to Roger to laugh with him about it

正确答案:D

答案解析:空格的后面是“but to all the other kids，too”，这应该是一个not only. . . but (also)的句型。老师认为如果他能以正确的方法解决这个问题，不仅对Roger，而且对其他的黑人孩子也非常重要。因此答案是D。