2020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、Sleeping Giant
Right 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. Three calderas make up more than a third of Yellowstone National Park. 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. _____.
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:B

答案解析:在选项B的“more than double that amount of ash and debris”这个短语中，有关键词 double that amount，说明前面句子一定有一个数字。检查后，发现这个数字是1,000 cubic kilometers of ash and debris，可以断定，选项B的句子就是要放回原位的句子。

2、The State of Marriage Today
Is there something seriously wrong with marriage today? During the past 50 years, the rate of divorce in the United States has exploded: almost 50% of marriages end in divorce now, and the evidence suggests it is going to get worse. If this trend continues, it will lead to the breakup of the family, according to a spokesperson for the National Family Association. Some futurists predict that in 100 years, the average American will marry at least four times, and extramarital (婚外的) affairs will be even more common than they are now.
But what are the reasons for this, and is the picture really so gloomy (黑暗的)? The answer to the first question is really quite simple: marriage is no longer the necessity it once was. The institution of marriage has been based for years partly on economic need. Women used to be economically dependent on their husbands--as they usually didn't have jobs outside the home. But with the rising number of women in well-paying jobs, this is no longer the case, so they don't feel that they need to stay in a failing marriage.
In answer to the second question, the outlook may not be as pessimistic (悲观的) as it seems. While the rate of divorce has risen, the rate of couples marrying has never actually fallen very much, so marriage is still quite popular. In addition to this, many couples now simply live together and don't bother to marry. These couples are effectively married, but they do not appear in either the marriage or divorce statistics. In fact, more than 50% of first marriages survive.
So is marriage really an outdated institution? The fact that most people still get married indicates that it isn't. And it is also true that married couples have a healthier life than single people: they suffer less from stress and its consequences, such as heart problems, and married men generally consider themselves. more contented than their single counterparts. Perhaps the key is to find out what makes a successful marriage and apply it to all of our relationships! (2011年)
Which of the following is true about the marriage in the United States today?
【单选题】

A.Divorce leads to the breakup of the family.

B.More than half of the married couples get divorced.

C.American people marry more than four times.

D.More and more people are getting divorced.

正确答案:D

答案解析:三误一正的细节考查题。题干问“关于美国当代婚姻存在的问题，哪一项是正确的”，参见文章第一段，本段提到：美国离婚率猛增，且有不断上升的趋势。选项D“越来越多的人离婚”符合这一描述，故正确答案为D。选项A与C都是预计将来会发生的事，而不是如今的情况。

3、Electric Backpack
Backpacks are convenient. They can hold your books, your lunch, and a change of clothes, leaving your hands free to do other things. Someday, if you don't mind carrying a heavy load, your backpacks might also power your MP3 player, keep your cell phone running, and maybe even light your way home.
Lawrence C. Rome and his colleagues from the University of Pennsylvania in Philadelphia and the Marine Biological Laboratory in Woods Hole, Mass, have invented a backpack that makes electricity from energy produced while its wearer walks. In military actions, search-and-rescue operations, and scientific field studies, people rely increasingly on cell phones, global positioning system (GPS) receivers, night-vision goggles, and other battery-powered devices to get around and do their work. The backpack's electricity-generating feature could dramatically reduce the amount of a wearer's load now devoted to spare batteries, report Rome and his colleagues in the Sept. 9, Science.
The backpack's electricity-creating powers depend on springs used to hang a cloth pack from its metal frame. The frame sits against the wearer's back, and the whole pack moves up and down as the person walks. A gear mechanism converts vertical movements of the pack to rotary motions of an electrical generator, producing up to 7. 4 watts.
Unexpectedly, tests showed that wearers of the new backpack alter their gaits in response to the pack's oscillations, so that they carry loads more comfortably and with less effort than they do ordinary backpacks. Because of that surprising advantage, Rome plans to commercialize both electric and non-electric versions of the backpack.
The backpack could be especially useful for soldiers, scientists, mountaineers, and emergency workers who typically carry heavy backpacks. For the rest of us, power-generating backpacks could make it possible to walk, play video games, watch TV, and listen to music, all at the same time. Electricity-generating packs aren't on the market yet, but if you do get one eventually, just make sure to look both ways before crossing the street!
Backpacks are convenient because .【单选题】

A.they can be very large

B.they can hold as many things as you want to carry

C.your hands are freed to do other things

D.you do not have to carry things with you

正确答案:C

答案解析:第1段告诉我们，因为背包可以装许多东西，所以可以将双手解放出来做其他事情(to free your hands to do other things).

4、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.
Gestures and facial expressions may assist a child in mastering his native language.
【单选题】

A.Right

B.Wrong

C.Not mentioned

正确答案:A

答案解析:题干大意：手势和面部表情可能会对儿童掌握母语有帮助。利用答案线索词gestures和facial expressions，我们可以在第三段第二句中发现直接相关信息。该句说：儿童学习母语的另一个优势是可以接触各种情景的母语，而且还常伴随着正确的手势和面部表情。可见原句的说法与问题句一致，所以问题句“正确”。

5、Gun Rights in the US
Immediately 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 ____ 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 stop 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.while

B.which

C.that

D.here

正确答案:D

答案解析:本题有一定难度，干扰项有一定的干扰性，本题考查的是定语从句关系词的用法，因为先行词是the country，所以关系词应该用修饰地点的where，最佳答案是D。