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、An Early Form of Jazz MusicMusic comes in many forms; most countries have a style of their own. At the turn of the last century, when jazz was born, America had no prominent ____ 0f its own. No one knows exactly when was invented or by whom. But it began to be heard in the early 1890s. Jazz is America\'s contribution to popular music. In contrast to classical music, which follows formal European traditions, jazz is spontaneous and free in form. It bubbles with energy, expressing the moods, interests, and emotions of the people. In the 1920s\' jazz sounded like America. And so it does today. The origins 0f the music are as interesting as the music itself. American Negroes, or blacks, as they are called today, were the jazz pioneers. They were brought to the Southern states as slaves. They were sold to plantation owners and forced to work long hours. When a Negro died, his friends and relatives formed a procession to carry to body to the cemetery. In New Orleans, a band often accompanied the body . On the way to the cemetery the band played slow, solemn music, suited to the occasion. Furthermore 0n the way home the mood changed. Spirits lifted. Death had removed one of their numbers, but the living were glad to be alive . The band played happy music, improvising on both the harmony and the melody of the tunes played at the funeral. This music made everyone want to dance. It was an early form ofjazz. 【单选题】

A.music

B.songs

C.melodies

D.tunes

正确答案:A

答案解析:当时美国还没有明显属于自己的音乐，其他三个选项的词义都十分具体，美国不可能没有。

2、New Product Will Save LivesDrinking water that looks clean may still contain bugs, which can cause illness. A small company called Genera Technologies has produced a testing method in three stages, which shows whether water is safe. The new test shows if water needs chemicals added to it, to destroy anything harmful. It was invented by scientist Dr. Adrian Patton, who started Genera five years ago. He and his employees have developed the test together with a British water company.Andy Headland, Genera\'s marketing director, recently presented the test at a conference in the USA and forecast good American sales for it. Genera has already sold 11 0fits tests at $42,500 a time in the UK and has a further four on order. It expects to sell another 25 tests before the end of March. The company says it is the only test in the UK to be approved by the government.Genera was formed five years ago and until October last year had only five employees; it now employs 14. Mr. Headland believes that the company should make around $19 million by the end of the year in the UK alone.Genera Technologies has developed a method that determines whether water is clean.【单选题】

A.Right

B.Wrong

C.Not mentioned

正确答案:A

答案解析:题干的意思与原文第2句相符，故为正确答案。

3、DyslexiaAs many as 20% of all children in the United States suffer from some form of the learning disorder called dyslexia.Experts on dyslexia say that the problem is not disease. They say that persons with dyslexia use information in a different way. One of the world\'s great thinkers and scientists, Albert Einstein was dyslexic. Einstein said that he never thought in words the way that most people do. He said that he thought in pictures instead. The American inventor Thomas Edison was also dyslexic. Dyslexia first was recognized in Europe and the United States more than 80 year ago. Many years passed before doctors discovered that persons with the disorder were not mentally slow or disabled. The doctors found that the brains of persons with dyslexia are different. In most people, the left side of the brain, the part that controls language is larger than the right side. In persons with dyslexia, the right’ side of the brain is bigger. Doctors are not sure what causes this difference. However, research has shown that dyslexia is more common in males that in females, and it is found more often in persons who are left-handed. No one knows the cause of dyslexia, but some scientists believe that it may result from chemical changes in a baby\'s body long before it is born. They are trying to find ways to teach persons with dyslexia. Dyslexic persons think differently and need special kinds of teaching help. After they have solved their problems with language, they often show themselves to be especially intelligent or creative.Dyslexic people often turn out to be intelligent or creative once they have learned to handle language properly.【单选题】

A.Right

B.Wrong

C.Not mentioned

正确答案:A

答案解析:题目中的关键词是intelligent or creative，我们在全文最后一句找到答案，通过对比知道：show themselves to be—turn out to be，solve—handle等均属同义表达，所以该题正确答案是A。

4、A number of theories have been proposed to explain the situation.【单选题】

A.suggested

B.tested

C.used

D.announced

正确答案:A

答案解析:有多种理论被建议用来解释目前形势。本题难度不大，干扰项干扰不大，propose和suggest都有“建议”的意思，最佳答案是A。

5、Sleeping GiantRight now, an eruption is brewing in Yellowstone National Park. Sometime during the next two hours, the park\'s most famous geyser, Old Faithful, will begin gurgling boiling water and steam. Then, an enormous fountain will shoot high into the air .Old Faithful is not only a spectacular sight; it\'s also a constant reminder that Yellowstone sits on one of the largest volcanoes in the world. If you\'ve never heard of Yellowstone\'s volcano, you\'re not alone. The volcano is so inconspicuous(不显眼的) that few people know it exists. Yet it has erupted three times during the last 2 million years. And one of those eruptions spewed enough volcanic ash and other debris to blanket half the United States.Yellowstone\'s volcano is sometimes called a "super volcano," or extremely large and explosive caldera volcano. _____. This super volcano formed over a hot spot, an extremely hot area in Earth\'s mantle. John Valley, volcano professor, said that as the crust moves across a hot spot, the hot spot melts a. section of the plate moving over it, forming "one volcano after another. "The Yellowstone hot spot melts thick continental crust, which may cause catastrophic eruptions. According to experts the eruptions that created each of the three calderas in and around Yellowstone National Park were larger than any other volcanic eruption in recorded history. The most recent eruption, which happened 640,000 years ago, produced at least l,000 cubic kilometers of ash and debris, which blanketed most of the western half of the United States. The first Yellowstone eruption, 2 million years ago, released more than double that amount of ash and debris.Geological evidence shows Yellowstone has blown its stack every 700,000 years or so. "If nature were truly that regular and reliable, we would be clue for another eruption soon," said Valley. "However, these processes are subject to variability, so we don\'t really know when the next eruption will happen. "While the active geologist processes at Yellowstone do pose some risk to tire public, they also make it a unique treasure. It is the volcanic energy that powers the geysers and hot springs, creates the mountains and canyons, and generates the unique ecosystems that support Yellowstone\'s diverse wildlife.【单选题】

A.Three calderas make up more than a third of Yellowstone National Park.

B.The first Yellowstone eruption, 2 million years ago, released more than double that amount of ash and debris.

C.The volcano is so inconspicuous(不显眼的) that few people know it exists.

D.Then, an enormous fountain will shoot high into the air.

E.While the active geologist processes at Yellowstone do pose some risk to tire public, they also make it a unique treasure.

F.Yellowstone National Park attracts the interest of geologists the world over.

正确答案:A

答案解析:第3段第1句说黄石公园的火山extremely large，所以有时候被称为supervelcano。选项A的句子具体说明这个supervolcano大到一个什么程度，所以是答案。