最新大学英语四级考试15选10
15选10模拟题

四级第一篇之邯郸勺丸创作Part III Reading Comprehension (40 minutes)Section ADirections:In this section, there is a passage with tenblanks. You are required to select one wordforeach blank from a list of choices given in a wordbank following the passage. Read the passagethrough carefully before making your choices.Each choice in the bank is identified by a letter.Please mark the corresponding letter for eachitem on AnswerSheet 2 with a single line throughthe centre. You may not use any of the words inthe blank more than once.Questions 36 to 45 are based on the following passage.You might expect that children’s movies would be lessviolent than those geared toward adults. But you’d be__36__.“Just because a film has a cute clown fish or a singingmermaid or baby deer in it, doesn’t mean that there won'tbe murder,” says Ian Colman, a mental healthepidemiologist at the University of Ottawa.Colman thought it’d be interesting to compare violence infilms __37__ at kids and grown-ups, after a colleague ofhis said that he may want to __38__ over the first fiveminutes of Finding Nemo while watching with his kids,since it __39__ a “death scene,” he says.So he and a few other researchers __40__ the 45 children’s mov ies of all time to the adult’s dramas and __41__ how many murders and violent acts took place.They skipped action movies because these “are often also marketed to, and viewed by, young children,” Colman and colleagues wrote in the study. They found that in children’s films __42__ those aimed toward adults, deaths amongst major characters were 2.5 times more __43__, and 2.8 times more likely to be murders, says Colman. Movie characters that were parents fared particularly badly.But in this case, the findings do seem to have some real-world __44__. It may be best for parents to watch movies with their kids, so that if __45__ come up, they can be talked about, Colman says.注意:此部分题请在答题卡2上作答。
英语15选10做题技巧

英语15选10做题技巧积存词汇量。
这虽然不能马上见效,但确是最根本的方法。
背四级词汇的时候,不必记拼写,只要看到这个单词能想起大概意思就可以了。
不过大家一般都是裸考的,那就忽略这点吧。
拿到题目,通读全文,对全文意思有一个大致的把握。
先别急于去选词,除非是很确定的。
看选项,注意词汇的词性,大致推断是名词还是动词,动词的时态,副词。
如后缀是-ed,可能是被动或者形容词。
第二遍读题,着重留意空格前后的词,推断应选词的词性来选择。
比如,空格前后都是名词n.___n.,那空格里多半该填动词,再看时态,一步步缩小范围。
空格前有a/an/the,那一定是填名词。
总之依据词性去选可以大大缩小范围依据词性选择的同时,也可以看看词的感情色彩,依据文意推断这里应该填好的还是不好的,不过不熟悉意思的话也挺难猜的。
实在填不出来的,也别着急,总有几个填不出的,那就只能蒙了,别在这里浪费太多时间。
填完之后再看一遍文章,看看有没有因为手误之类的填错的,那些纠结的也就别改了。
2快速有效的英语学习技巧1、尽可能多的讲英语学习英语就是为了能够更好的交流,因此英语的"说'的能力是至关重要的,不过我们四周很多的朋友并不能开口说好英语,这主要也跟他们的〔心理素养〕有关,因此首先要克服自己的心理障碍,尽可能多的开口讲英语,同时试着将大部分的时间花在和比你讲得好的人交谈。
2、看英语电视或者听英语录音正确的学习英语,在听和说里面,要注意把握节奏感,这种节奏感可以通过观看英语电视或者录音来体会,针对初级学习者,要注意多听英语录音,试着听话语的速度,以及它是在哪一种语境下发音的,语调又是什么样的,在外界环境下的发音是可以让学习者真切感受到语言的特点的。
3、犯错误及时改正在学习英语的过程中,不免会犯各种各样的错误,有些学习者由于各方面的原因害怕犯错误,而没有将自己投入到英语的学习中,学习时畏手畏脚,不能很好的理解英语句子的含义也不敢说出自己的真实想法。
新视野大学英语第四册十五选十 原文及翻译

1Have you ever known anyone famous? If so, you may have found that they are remarkably similar to the rest of us. You may have even heard them to people saying there is anything different about them. "I'm really just a normal guy," an actor who has recently rocketed into the spotlight. There is, of course, usually a brief period while they are popular when they actually start to believe they are as great as their fans suggest. They start to wear clothes and talk as if everyone should hear what they have to say. This period, however, does not often last long. They fall back to reality as fast as they had risen above it all. What will it feel like to soar to such and look down like an eagle from up high on everyone else? And what will it feel like to have flown so high only to from your dream and realize you are only human? Some only see the in losing something they had gained. They often make attempts to regain what they lost. Often these efforts result in even greater pain. Some become financially and emotionally. The only real winners are those who are happy to be back on the ground with the rest of us.你有没有见过名人吗?如果是这样的话,你可能会发现,他们对我们非常相似。
四级培训阅读15选10,完型,翻译

第一章完形填空第一节题型透析一、题型介绍《大纲》提到:完形填空(Cloze)测试学生各个层面上的语言理解能力及语言运用能力。
短文长度为220~250词,内容是学生所熟悉的题材。
这部分的分值比例为10%,考试时间为15分钟。
完形填空部分的短文有20个空格,空格处待填入的词既有实词也有虚词,每个空格为一题,每题有4个选择项。
要求考生选择一个最佳答案,使短文的意思和结构恢复完整。
完形填空是连贯的短文层次上的填空,它要求考生在通读全文、掌握大意和主题的基础上,综合运用所学过的词汇、语法和篇章结构知识,选择或推测最佳答案填补空缺,使短文意思和结构恢复完整。
完形填空对考生的语言知识和能力的要求主要有:阅读理解能力、整体语感和语篇分析能力、句法结构知识、词汇知识(包括词汇量,构词知识,近义词辨析,语义的内涵、外延、联想和搭配等)和句型搭配知识(包括动词、名词、形容词的惯用句型,动词、名词、形容词、副词之间的搭配及其与介词的习惯搭配等)。
二、命题趋势完形填空考查考生在阅读理解的基础上对词汇、语法知识的掌握情况。
要求考生通读全文,掌握文章大意,运用词汇、语法等知识,选择最佳答案,使文章意思通顺,结构完整。
通过研读改革后的几次新题型考试,可以看出以下趋势。
(一)文章体裁和题材多样化完形填空所选材料皆为英美原版报刊书籍上的材料,在选材时主要考虑两个方面:语言和内容。
从近几次考试来看,完形填空所选材料地道,难度适中,词汇要求符合大纲规定。
文章题材非常广泛,涵盖社会科学、人文科学和自然科学各个方面,呈现多样化的趋势,对学生的背景知识和综合能力提出了较高的要求。
文章的体裁仍然以说明文、议论文为主,记叙文为辅。
考生在平时的备考中要重点练习前两种体裁的文章。
对不同体裁的文章,要根据其体裁特点,运用不同的方法快速阅读,正确理解。
说明文中,作者先提出说明对象,然后从时间、空间、使用方法、步骤等不同侧面加以说明。
议论文中,作者先提论点,再加以分析,或举例论证,得出结论。
到英语四级15选10题型汇总

2013年6月份Walking, if you do it vigorously enough, is the overall best exercise for regular physical activity. Itrequires no equipment, everyone knows how to do it and it carries the 47 risk of injury. The human b ody is designed to walk. You can walk in parks or along a river or in your neighborhood. To get 48 be nefit from walking, aim for 45 minutes a day, an average of five days a week.Strength training is another important 49 of physical activity. Its purpose is to build and 50 bone and muscle mass, both of which shrink with age. In general, you will want to do strength training twoor three days a week, 51 recovery days between sessions.Finally, flexibility and balance training are 52 important as the body ages. Aches and pains are h igh on the list of complaints in old age. The result of constant muscle tension and stiffness of joints, many of them are 53 , and simple flexibility training can 54 these by making muscles stronger and keeping joints lubricated (润滑 ).Some of this you do whenever you stretch. If you watch dogs and cats, you’ll get an idea of how natural it is. The general 55 is simple: whenever the body has been in one position for a while, it is good to56 stretch it in an opposite position.A) allowing B) avoidable C) briefly D) component E) determined F) helping G) increasingly H) lowest I) maintain J) maximum K) preventL) principle M) provoke N) seriously O) topic答案:47. 答案:H. lowest【解析】:根据上下文可以判断需要选择一个形容词来修饰risk,根据句子意思,需要选择lowest“最低的”,句子的意思是:人人都知道怎么步行,并且步行受伤的风险最低。
(完整word版)四级考15选10 练习10篇

1.98年1月四级真题改编Part IV Reading Comprehension (Reading in Depth) (25 minutes)Section ADirections: In this section, there is a passage with ten blanks。
You are required to select one word for each blank from a list of choices given in a word bank following the passage。
Read the passage through carefully before making your choices。
Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once。
Questions 47 to 56 are based on the following passage。
In bringing up children,every parent watches eagerly the child’s acquisition of each new skill—the first spoken words, the first __47__ steps, or the beginning of reading and writing。
It is often __48__ to hurry the child beyond his natural learning rate, but this can set up dangerous feelings of failure and states of worry in the child。
英语四级十五选十技巧

英语四级十五选十技巧英语四级十五选十技巧做十五选十时注意文章的首句,把握大意,第一句话可谓是题目的核心,抓住并提取主要信息点是我们做题时的首要任务。
下面是店铺整理的英语四级十五选十技巧,欢迎阅读,仅供大家参考。
题型分析篇章词汇理解是大学英语四级考试中出现的一种新题型.这种题是在一篇长度为220个单词的文章中留出10个单词的空格,要求考生从15个备选单词中选出10个填入空格处,使文章语句通畅,表达正确.测试重点:考生对连贯性一致性及逻辑关系等语篇语段的整体特征以及单词在实际语境中的理解.既考查宏观结构,又考查微观理解.15个单词中3个名词正确答案+1个名词干扰答案、3个动词正确答案+1个动词干扰答案、3个形容词正确答案+2个形容词干扰答案、1个副词正确答案+1个副词干扰答案。
解题步骤1、通读全文,抓住中心(首段、首句原则);2、阅读选项,词性分类(注意分析动词时态);3、全盘考虑,灵活选择(根据所需词性缩小范围,每词只能用一次);4、复读全文,核查答案(快速复读,用语感判断是否通顺准确)。
英语四级十五选十技巧1、辨析词性1)遇到动词要进行二次分类:确定时态,确定是第三人称单数还是非第三人称单数;但应注意动词+ed型的有两种可能性,动词或形容词。
遇到名词要确定单数还是复数。
2)不认识的单词,看后缀。
构词法中,前缀表明意思,后缀表明词性。
3)词性一时无法确定的,暂时搁置,不必纠缠,影响全局。
4)作出相应的标记。
可直接用自己最清楚的符号清楚标在每个词前后。
不清楚的.都标问号。
2、确定选项的选择范围1)关于动词的判断前后都是名词短语,中间是动词。
根据一句(包括从句)有且只有一个谓语动词的原则,其它地方如无谓语动词,则需要谓语动词;反之则不需要谓语动词。
2)其它词的判断形容词或名词修饰名词,限定词(the,this,that,a,my之类)后必有名词。
副词修饰形容词或动词谓语动词前有名词主语介词后面必有名词3、句里句外,猜测词义1)看搭配主谓宾、主系表,与修饰词直接的搭配关系决定着词的意义,所以先看它被谁修饰,与谁形成什么关系。
大学英语四级考试15选10

Unit EightPassage 2When a person feels low, blue, or down in the clumps, it usually means he has been hurt, disappointed, or saddened by something that causes a confused and listless feeling. There is 11 a type of music called "the blue", a low, mournful, sad sound to 12 these universal human feelings.Depression is another name for this mood. Feeling depressed is a normal and natural 13 to experiences of loss, failure, and undeserved bad luck. Indeed, it has been pointed out that without depression, we would 14 much of the world's great tragic literature, music, and art.In some cases, however, depression becomes something more than just 15 feelings of blues or letdown. A large number of people suffer from what psychiatrists call "depressive illness. " Depressive illness is more 16 and lasts longer than common listless feelings. Sometimes a serious 17 of depression can begin with the loss of a loved one or a change of job. Many times, in very18 cases, there doesn't seem to be any circumstance serious enough to have caused the depression.Some psychiatrists suggest that the key feature in depression is change. The person becomes different from the way before the onset of his depression. He may even become the opposite of his usual self. There are many examples: the businessman who becomes a wanderer, the mother who wants to 19 her children and herself. Instead of seeking satisfaction and pleasure, the depressed person 20 it.A growing world population and the discoveries of science may 11 this pattern of distribution in the future. As men slowly learn to master diseases, control floods, prevent famines, and stop wars, fewer people die every year; and in 12 the population of the world is 13 increasing. In 1925 there were about 2,000 million people in the world; by the end of the century there may well be over 4,000 million.When numbers rise the 14 mouths must be fed. New lands must be I bought under cultivation, or land already farmed made to 15 larger crops. In some areas the accessible land is largely so intensively 16 that it will be difficult to make it provide more food. In some areas the population is so dense that the land is parceled out in units too 17 to allow for much improvement in farming methods. Were a larger part of this farming population drawn off into industrial occupations, the land might be farmed much more productively by modern methods.There is now a race for science, technology, and industry to keep the 18 of food rising faster than the number of people to be fed. New strains of crops are being developed which will thrive in 19 climates; irrigation and dry-farming methods bring poor lands under the plough, dams hold back the waters of great rivers to 20 water for the fields in all seasons and to provide electric power for new industries; industrial chemistryprovides fertilizers to suit particular soils; aero planes spray crops to destroy insects and many plant diseases.A. ensureB. violentlyC. alterD. harmfulE. cultivatedF. uniqueG. transplantedH. yieldI. consequenceJ. outputK. extraL. steadilyM. tinyN. unfavorableO. produceUnit TenPassage 2In the United States, it is not 11 to telephone someone very early in the morning. If you telephone him early in the day, while he is shaving or having breakfast, the time of the call shows that the matter is very important and requires immediate attention. The same meaning is attached to telephone calls made after 11: 00 p. m. . If someone receives a call during sleeping hours, he 12 it's a matter of life and death. The time chosen for the call 13 its importance.In 14 life, time plays a very important part. In the U. S. A. , guests tend to feel they are not highly regarded if the 15 to a dinner party is extended only three or four days before the party date. But it is not true in all countries. In other areas of the world, it may be considered foolish to make an appointment too far in 16 because plans which are made for a date more than a week away tend to be forgotten. The meaning of time differs in different parts of the world. Thus, misunderstandings 17 between people from cultures that treat time differently.Promptness is valued 18 in American life, for example. If people are not prompt, they may be regarded as impolite or not fully responsible. In the U. S. no one would think of keeping a business 19 waiting for an hour, it would be too impolite. A person who is 5 minutes late is 20 to make a shortapology. If he is less than 5 minutes late, he will say a few words of explanation, though perhaps he will not complete the sentence.A. highlyB. engagementC. customaryD. socialE. informF. invitationG. advanceH. absenceI. heavily J. associate K. expected L. assumesM. habitual N. arise O. communicatesUnit ElevenPassage 2Personality is, to a large extent, inherent—A-type parents, usually bring about A-type children. But the environment must also have a 11 effect, wince if competition is important to the parents it is likely to become a major 12 in the lives of their children.One place where children soak up A characteristics is school, which is, by its very nature, a highly competitive institution. Too many schools 13 the " win at all costs" moral standard and measure their success by sporting achievements. The current 14 for making children compete against their classmates or against the clock produces a two-layer system, in which competitive A types seem in some way better than their B-type fellows. Being 15 keen to win can have dangerous consequences: remember that Pheidippides, the first marathon runner, dropped dead seconds after saying; "cheers, we conquer!"By far the worst form of competition in schools is the extreme 16 on examinations. It is a rare school that allows pupils to 17 on those things they do well. The merits of competition by examination are somewhat 18 , but competition in the certain knowledge of failure is positively harmful.Obviously, it is neither 19 nor desirable that all A youngsters change into B's. The world needs types, andschools have an important duty to try to 20 a child's personality to his possible future employment. It is top management.A. enoughB. fitC. emphasisD. practicalE. innumerableF. concentrateG. adoptH. questionableI. profound J. factor K. too L. substanceM. passion N. emotion O. fixUNIT 12Passage 2As the 11 of life continues to increase, we are fast losing the art of relaxation. Once you are in habit of rushing through life, being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body. Stress is a natural part of everyday life and there is no way to avoid it. In fact, it is not the bad thing it is often 12 to be. A certain amount of stress is 13 to provide motivation and give purpose to life. It is only when the stress gets out of control that it can lead to poor 14 and ill health.The amount of stress a person can 15 depends very much on the individual. Some people are not afraid of stress, and such characters are 16 prime material for managerial responsibilities. Others lose heart at the first signs of 17 difficulties. When exposed to stress, in whatever form, we react both chemically and physically. In fact we make choice between "fight" or "flight" and in more primitive days the choices made the difference between life or death. The crises we meet today are unlikely to be so 18 , but however little the stress, it involves the same response. It is when such a reaction lasts long, through continued 19 to stress, that health becomes endangered. Such serious conditions as high blood pressure and heart disease have established links with stress. Since we cannot 20 stress from our lives(it would be unwise to do so even if we could) , we need to find ways to deal with it.A. cancelB. paceC. extremeD. automaticallyE. removeF. vitalG. performanceH. supposedI. rate J. exposure K. achievement L. unusualM obviously N withstand O harshUnit ThirteenPassage 2What is your favorite color? Do you like yellow, orange, red? If you do, you must be an optimist, a leader, an active person who 11 life, people and excitement. Do you prefer greys and blues? Then you are probably quiet, shy, and you would rather follow than lead. You 12 to be a pessimist. At least, this is what psychologists tell us, and they should know, because they have been seriously studying the meaning of color preference, as well as the effect that colors have on human beings. They tell us, among other 13 , that we do not choose our favorite color as we grow up—we are born with our preference. If you happen to love brown, you did so, as soon as you opened your eyes, or at least as soon as you could see clearly.Colors do 14 our moods—there is no doubt about it. A yellow room makes most people feel more cheerful and more relaxed than a dark green one; and a red dress brings warmth and cheer to the saddest winter day. On the other hand, black is 15 .A black bridge over the Thames River, near London, used to be the 16 of more suicides than any other bridge in the area—until it was repainted green. The number of suicide attempts immediately fell 17 ; perhaps it would have fallen even more if the bridge had been done in pink or baby blue.Light and 18 colors make people not only happier but more active. It isan 19 fact that factory workers work better, harder, and have fewer 20 when their machines are painted orange rather than black or grey.A. brightB. sceneC. whollyD. favorE. factsF. depressingG. accidentsH. interfereI. established J. incidents K. disgusting L. sharplyM. enjoys N. tend O. influenceUnit FourteenPassage 2Women are also underrepresented in the administration and this is because there are so few women 11 professors. In 1985, Regent Beryl Milburn produced a report blasting the University of Texas System administration for not 12 women. The University was rated among the lowest for the system. In a 1587 update, Milburn 13 and praised the progress that was made and called for even more 14One of the positive results from her study was a system-wide program to inform women of available administrative jobs. College of Communication Associate Dean, Patricia Witherspoon, said it is important that woman be 15 when it comes to relocating if they want to 16 in the ranks.Although a woman may face a chilly 17 on campus, many times in order for her to succeed, she must rise above the problems around her and concentrate on her work.Until women make up a greater 18 of the senior positions in the University and all academia, inequalities will exist. "Women need to spend their energies and time doing scholarly activities that are important here at the University. " Spirduso said. "If they do that they will be 19 in this system. If they spend their time in little groups mourning the sexual discrimination that they think exists here, they are 20 wasting valuable study time. "A. fullB. recalledC. improvementD. riseE. encouragingF. flexibleG. recognizedH. idlyI. ratio J. persuading K. movable L. possiblyM. successful N. climate O. percentageUnit FifteenPassage 2In October 1987, the National Board for Professional Teaching Standards began its work to set new standardsof accomplishment for the teaching profession and to improve the 11 of education available to all children in the United States.Teachers are 12 to students and their learning. They must act on the belief that all students can learn. They must recognize 13 differences in their students and adjust their practice 14 . They must know that their mission extends beyond developing the cognitive capacity of their students. They must be 15 with their students' self-concept, with their motivation, and with the development of character.Teachers must know the subjects they teach and how to teach them. They must 16 specialized knowledge of how to convey a subject to students. Teachers are responsible for managing and monitoring student learning. They must call on 17 methods to meet their goals, knowing and being able to 18 a variety of instructional skills. Teachers must think systematically about their practice and learn from experience, seeking the 19 of others and drawing on education research and scholarship to improve their practice.As members of learning communities, teachers contribute to school effectiveness by collaborating with other professionals. They take ___20 ofcommunity resources, cultivating knowledge of their school's community as a powerful resource for learning.A. employB. adviceC. quantityD. committedE. commandF. consultedG. manualH. approximatelyI. concerned J. advantage K. multiple L. accordinglyM. individual N. embrace O. qualityUnit SixteenPassage 2If you are looking for information, library shelves are a good place to start. But if you need up-to-the-minute data or have specialized needs, you may find a computerized database more useful, less expensive, and less time 11 .A database, a file of information on one subject or family of subjects, can be stored and 12 in a computer's memory. The speed of the computer then 13 you to recall any item in this file almost 14The three main types of databases are statistical, bibliographic, and full text. Statistical databases store 15 amounts of numerical data, such as wage and price indexes, census information, foreign 16 rates and bond prices. Bibliographic databases store references to and summaries of articles in periodicals and newspapers. Full-text databases offer the complex texts of such 17 as newspaper, magazine, and journal articles.Thousands of databases exist today, and their numbers are growing. Many companies have their in-house database, which is 18 to employees through computer terminals or microcomputers. In addition, several hundred commercial databases are now available to the 19 , with literally millions of items of information readily obtainable. These databases 20 specific fields, such as law and financial forecasting, or general information, such as sports and weather data.A. exchangeB. publicC. instantlyD. coverE. enablesF. consumingG. remainedH. materialsI. hide J. intensively K. vast L. communicationsM. exhausting N. accessible 0. maintainedUnit SeventeenPassage 2No one knows exactly how many disabled people there are in the world, but 11 suggest the figure is over 450 million.The number of disabled people inIndia 12 is probably more than double the total population of Canada.In the United Kingdom, about one in ten people have some disability. Disability is not just something that happens to other people: as we get older, many of us will become less 13 , hard of hearing or have failing eyesight. Disablement can take many forms and occur at any time of life. Some people are born with disabilities. Many others become disabled as they get older. There are many 14 disabling diseases. The longer time goes on, the worse they become. Some people are disabled in accidents. Many others may have a period of disability in the form of a mental illness. All are affected by people's attitude towards them.Disabled people face many 15 barriers. Next time you go shopping or to work or to visit friends, imagine how you would 16 if you could not get up steps, or on to buses and trains. How would you cope if you could not see where you were going or could not hear the traffic? But there are other barriers; 17 can be even harder to break down and ignorance 18 represents by far the greatest barrier of all. It is almost impossible for the able-bodied to fully appreciate what the severely disabled go through, so it is important to 19 attention to these barriers and show that it is the individual person and their ability, not their disability, which 20A. inevitablyB. evaluationsC. estimatesD. manageE. aloneF. countsG. prejudiceH. physicalI. mobile J. indifferently K. withdraw L. progressiveM. regular N. accounts O. drawUnit EighteenPassage 2Social customs and ways of behaving change. Things which were considered impolite many years ago are now11 . Just a few years ago, it was 12 impolite behavior for a man to smoke on the street. No man who thought of himself as being a gentleman would make a 13 of himself by smoking when a lady was in a room. Customs also differ from country to country. Does a man walk on the left or the right of a woman in your country? Or doesn't it 14 ? What about table manners? Should you use both hands when you are eating? Should you leave one in your lap, or on the table?The Americans and the British not only speak the same language but also 15 a large number of social customs. For example, in both America and England people shake hands when they meet each other for the first time. Also, most Englishmen will open a door for a woman or offer their seat to a woman, and so will most Americans. 16 is important both in England and in America. That is, if a dinner invitation is for 7 o'clock, the dinner guest either arrives 17 to that time or calls up to explain his 18The important thing to remember about social customs is not to do anything that might make other people feel uncomfortable— 19 if they are your guests. There is an old story about a man who gave a formal dinner party. When the food was served, one of the guests started to eat his peas with a knife. The other guests were amused or shocked, but the20 calmly picked up his knifeand began eating in the same way.A. especiallyB. attainableC. closeD. delayE. consideredF. hostG. deliveryH. PreparationI. share J. fool K. specifically L. acceptableM. matter N. Promptness 0. careUnit NineteenPassage 2The economy of the United States after 1952 was the economy of a well-fed, almost fully employed people. Despite 11 alarms, the country escaped any postwar depression and lived in a 12 of boom. An economic survey of the year 1955, a typical year of the 1950's, may be typical as 13 the rapid economic growth of the decade. The national output was 14 at 10 percent above that of 1954(1955 output was estimated at 392 billion dollars). The production of manufactures was about 40 percent more than it had 15 in the years immediately following World War I . The country's business spent about 30 billion dollars for new factories and machinery. National income 16 for spending was almost a third greater than it had been in 1950. Consumers spent about 256 billion dollars; that is about 700 million dollars a day, or about twenty-five million dollars every hour, all round the 17 . Sixty-five million people held jobs and only a little more than two million wanted jobs but could not find them. Only agriculture 18 that it was not sharing in the boom. To some observers this was a sad reflection of the mid-1920's. As farmers' share of their products 19 , marketing costs rose. But there were, among the observers of the national economy, a few who were not as confident as the majority. Those few seemed to fear that the boom could not last long and would20 lead to the opposite—depression.A. eventuallyB. averagedC. graduallyD. stateE. valuedF. formG. declinedH. occasionalI. casual J. argued K. descended L. complainedM. clock N. available O. illustratingUnit TwentyPassage 2Growth of trade will depend greatly on availability of energy sources. There may still be a trillion barrels of recoverable oil in the Middle East. But the oil crisis of 1974 has 11 to renewed interest in coal and to a search for12 sources of energy. Solar, geothermal, and nuclear energy will play a large role in the years to come.Solar energy is available in 13 forms. Buildings can be heated and cooled by direct use of solar radiation, crops and trees, which are the most efficient converters of sunlight into energy, can be grown for their energy potential, wastes can be burned as 14 , sunlight can be converted into DC (direct current) electricity, electric power can be 15 from the sun-warmed surface waters of the ocean, and lastly, solar radiation can be converted into heat that will drive electric power generators. Serious problems still remain as to 16 and storage of solar energy.Geothermal energy is the energy contained within the earth. Heat is abundantly available deep in the earth's core and is constantly being produced. However, this heat is usually located at too deep a level for 17 exploitation. In short, very little is known on the use of geothermal energy, and it has 18 been exploited.Nuclear energy is produced in nuclear power plants. At these plants atoms of uranium are split, thus 19masses of energy. Another source of energyunder development is the nuclear fusion of certain atoms of hydrogen. This could eventually 20 natural gas as a source of energy.A. rarelyB. transformationC. fuelD. replaceE. ledF. alternativeG. commercialH. brieflyI. derived J. various K. relieving L. releasingM. transportation N. financial O. describedUNIT 21Like most parents, geologist Brain Atwater worries about his daughter's safety. But these days, he has an unusual concern; The public school she 11 in Seattle has unreinforced brick walls, a 12 being easy to collapse during earthquakes. The same 13 of walls crushed hundreds of thousands of people during the 1976 Tangshan quake in China.A decade ago, Atwater would have paid little notice to schoolroom walls. But over the last several years, he and other scientists have found 14 signs that the Pacific Northwest has experienced giant quakes in the distant past and that the area may be headed for a destructive shock in the near future.At a meeting of the American Geophysical Union in December, researchers discussed the 15 uncovered evidence of quake potential in the Pacific Northwest. While some remain unconvinced that huge earthquakes—with magnitudes of 8 or higher—do indeed 16 this region, a growing number consider such shocks a serious possibility.What's worrisome, they say, is that northwestern cities such as Portland, Seattle and Vancouver have not prepared for earthquakes of this magnitude, which could shake the region's 17 centers with enough force to make the recent San Francisco area damage seem 18 in comparison."I think it's quite true to say that nothing has really been designed with one of these earthquakes in mind," says seismologist Paul Somerville of Woodward. At the meeting, Somerville and his colleagues 19 estimates of the degree of shaking. Portland and Seattle would suffer during such a 20 earthquake.A. massiveB. recentlyC. constructionD. displayedE. relativelyF. attendsG. typeH. strikeI. structure J. participates K. excessive L. mildM. disturbing N. population 0. presentedUnit Twenty-TwoPassage 2During the nineteenth and twentieth centuries, migrations have taken place within 11 countries; the cities with their industries have attracted people away from the country. The possibility of earning a fixed 12 in a factory or office was more attractive than the possibility of staying on the farm and having one's work 13 by frost, storms, or droughts. Furthermore, thedevelopment of agricultural machinery made it possible for fewer people to do the same 14 of work.Thus, at the same time when the industrial revolution made it possible to produce goods more 15 and more quickly in factories, agricultural revolution also took place. Instead of leaving fields empty every third year, farmers began to plant clover or some other crop that would 16 the soil. Instead of using only animal fertilizer, farmers began to use chemical fertilizers to keep the soil• 150 •rich. These methods have enabled French farmers, for example, to get five times as much wheat as was 17 from the same land two centuries ago.In many countries farmers find it more 18 to raise only one crop or one kind of animal. They choose the kind that gives the best results. Then they sell all that they produce, instead of trying to grow a little of everything and consume what they grow. This is a more feasible type of 19 because modern methods and machinery are adapted to specific animals and specific crops. Therefore, it would be too expensive to do all the work by hand, or to buy the 20 needed for several different kinds of farming.A. salary E. deserted I. equivalent M. destroyedB. freely F. operation J. enrich N. certainC. profitable G.amount K. fruitful O. cheaplyD. obtained H. payment L. equipmentUnit Twenty-ThreePassage 2The difference between a liquid and a gas is obvious under the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and fill it to the level of a free surface. A gas forms no free surface but tends to diffuse throughout the 11 available; it must therefore be kept in a closed container or held by a gravitational field, as in the 12 of a planet's atmosphere. The distinction was a 13 feature of early theories describing the phases of matter. In the nineteenth century, for example, one theory maintained that a liquid could be "dissolved" in a vapor without losing its identity, and another theory 14 that the two phases are made up of different kinds of molecules. The theories now prevailing take a quite different approach by emphasizing what liquids and gases have in 15 They are both forms of matter that have no 16 structure, and they both flow readily.The fundamental similarity of liquids and gases becomes clearly apparent when the temperature and pressure are 17 somewhat. Suppose a closed container 18 filled with a liquid is heated. The liquid expands, or in other words becomes less dense; some of it evaporates. In contrast, the vapor above the liquid surface becomes denser as the evaporated molecules are 19 to it. The combination of temperature and pressure at which the densities become 20is called the critical point.A. addedB. caseC. prominentD. heldE. equalF. partiallyG. exampleH. previous' I. space J, lifted K. permanent L. particularlyM. extended N. raised 0. commonUnit Twenty-FourPassage 2Scientists at Sussex University appear to be on the way to 11 how the mosquito, carrier of diseases such as malaria and yellow fever, homes in on its target. The problem is that they have found that the best way to avoid being bitten is: stop breathing, stop sweating, and keep down the temperature of your immediate surroundings. 12 the first suggestion is impossible and the others very difficult.Scientists have found that there are three 13 stages in a mosquito's assault. Stage one is at fifty feet away, when the insect first smells a man or a animal to 14 . Stage two is thought to come into operation about twenty-five feet from the target, when the insect becomes guided by the carbon dioxide breathed out by the intended victim. Stage three is when the mosquito is only a matter of inches from its 15 the warmth and moisture given off by the victim is the final clue.The researchers then * 16 how repellents interfere with its three-stage attack. They found repellents act more subtly than by just giving off a nasty smell. A Canadian researcher says that repellents appear to 17 mosquitoes first when it is following the carbon dioxide and second during the final approach, where the warmth and moisture are the insect's 18 . Air pervaded by one of the many chemical repellents stops the mosquito reacting to the victim's carbon dioxide, and the repellent seems to affect the tiny hairs with which the insect senses moisture in the air. The sensors are blocked so that the 19 does not know whether it is flying through a moist current, orthe sensors are made to send the 20 signals.。
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probably because students are not familiar with the 11 of the little wooden huts dotted all over the islands of the Spizbergen group.Each hut 12 has an inner and an outer door, shutters over the windows, a store of wood 13 up outside, dry chopped wood inside, utensils and cutlery, and above all, a small store of food. All these things must be completely in 14 whenever the hut is left.It makes no 15 if it is only the middle of July. That 16 hut may not be visited again before the winter. A door left open can lead either to snow filling up the hut to the ceiling, or 17 still, wind blowing the roof off. Unfastened shutters leave the windows an easy prey for polar bears 18 for food and the result is again snow in the hut. The ready-chopped wood is also very important.A traveler visiting the hut in the middle of the dark time and perhaps in bad weather, his feet, hands and face bitten by the frost, will have his difficulties doubled if the wood he left has been used up by others and he had nothing with which to19 a fire.Ten or more years ago there were enough hunters to look after most of the huts, but now many buildings have become useless because there is no one to repair them and because of 20A. worseB. peculiarC. laidD. lightE. generallyF. orderG. particularH. conventionsI. carelessness J.difference K. built L. fashionsM. searching N. ordinarily O. resultUnit SevenPassage 2Most of us trade money for entertainment. Movies, concerts and shows are enjoyable but 11 .If you think that you can't have a good time without spending a lot of money, read on. A little resourcefulness and a few minutes ofnewspaper-scanning should give you some pleasant surprises.People may be the most interesting show in a large city. 12 through busy streets and see what everybody else is doing. You will probably see people from all over the world; you will 13 see people of every age, size, and shape, and you'll get a free fashion show, too. Window-shopping is also a 14 sport if the stores are closed.Check the listings in your neighborhood paper. Local colleges or schools often 15 the public to hear an interesting speaker or a good 16 . The film or concert series at the local public library probably won't cost you a penny. Be sure to check commercial advertisements too. A flea market can provide hours of pleasant looking round. Perhaps you can find a free cooking or crafts 17 in a department store.Plan ahead for some activities. It is always more pleasant not to have people in front of you in a museum or at a zoo. You may save some money, too, since these places often 18 aside one or two free 19 days at slow times during the week. Make sure that you are including the indispensable 20 that people travel miles to see. If you feel like taking an interesting walk, find a free walking tour, or plan one yourself.A. expensiveB. WonderC.debateD. admissionE. setF. WanderG.safeH. additionI. valuable J. dispute K.welcome L. confidentlyM. sights N. demonstration O.certainlyUnit EightPassage 2When a person feels low, blue, or down in the clumps, it usually means he has been hurt, disappointed, or saddened by something that causes a confused and listless feeling. There is 11 a type of music called "the blue", a low, mournful, sad sound to 12 these universal human feelings.Depression is another name for this mood. Feeling depressed is a normal and natural 13 to experiences of loss, failure, and undeserved bad luck. Indeed, it has been pointed out that without depression, we would 14 much of the world's great tragic literature, music, and art.In some cases, however, depression becomes something more than just 15 feelings of blues or letdown. A large number of people suffer from what psychiatrists call "depressive illness. " Depressive illness is more 16 and lasts longerthan common listless feelings. Sometimes a serious 17 of depression can begin with the loss of a loved one or a change of job. Many times, in very18 cases, there doesn't seem to be any circumstance serious enough to have caused the depression.Some psychiatrists suggest that the key feature in depression is change. The person becomes different from the way before the onset of his depression. He may even become the opposite of his usual self. There are many examples: the businessman who becomes a wanderer, the mother who wants to 19 her children and herself. Instead of seeking satisfaction and pleasure, the depressed person 20 it.E. informF. invitationG. advanceH. absenceI. heavily J. associate K. expected L. assumesM. habitual N. arise O. communicatesUnit ElevenPassage 2Personality is, to a large extent, inherent—A-type parents, usually bring about A-type children. But the environment must also have a 11 effect, wince if competition is important to the parents it is likely to become a major 12 in the lives of their children.One place where children soak up A characteristics is school, which is, by its very nature, a highly competitive institution. Too many schools 13 the " win at all costs" moral standard and measure their success by sporting achievements. The current 14 for making children compete against their classmates or against the clock produces a two-layer system, in which competitive A types seem in some way better than their B-type fellows. Being 15 keen to win can have dangerous consequences: remember that Pheidippides, the first marathon runner, dropped dead seconds after saying; "cheers, we conquer!"By far the worst form of competition in schools is the extreme 16 on examinations. It is a rare school that allows pupils to 17 on those things they do well. The merits of competition by examination are somewhat 18 , but competition in the certain knowledge of failure is positively harmful.Obviously, it is neither 19 nor desirable that all A youngsters change into B's. The world needs types, and schools have an important duty to try to 20 a child's personality to his possible future employment. It is top management.A. enoughB. fitC. emphasisD. practicalE. innumerableF. concentrateG. adoptH. questionableI. profound J. factor K. too L. substanceM. passion N. emotion O. fixUNIT 12Passage 2As the 11 of life continues to increase, we are fast losing the art of relaxation. Once you are in habit of rushing through life, being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body. Stress is a natural part of everyday life and there is no way to avoid it. In fact, it is not the bad thing it is often 12 to be. A certain amount of stress is 13 to provide motivation and give purpose to life. It is only when the stress gets out of control that it can lead to poor 14 and ill health.The amount of stress a person can 15 depends very much on the individual. Some people are not afraid of stress, and such characters are 16 prime material for managerial responsibilities. Others lose heart at the first signs of 17 difficulties. When exposed to stress, in whatever form, we react both chemically and physically. In fact we make choice between "fight" or "flight" and in more primitive days the choices made the difference between life or death. The crises we meet today are unlikely to be so 18 , but however little the stress, it involves the same response. It is when such a reaction lasts long, through continued 19 to stress, that health becomes endangered. Such serious conditions as high blood pressure and heart disease have established links with stress. Since we cannot 20 stress from our lives(it would be unwise to do so even if we could) , we need to find ways to deal with it.A. cancelB. paceC. extremeD. automaticallyE. removeF. vitalG. performanceH. supposedI. rate J. exposure K. achievement L. unusualM obviously N withstand O harshUnit ThirteenPassage 2What is your favorite color? Do you like yellow, orange, red? If you do, you must be an optimist, a leader, an active person who 11 life, people and excitement. Do you prefer greys and blues? Then you are probably quiet, shy, and you would rather follow than lead. You 12 to be a pessimist. At least, this is what psychologists tell us, and they should know, because they have been seriously studying the meaning of color preference, as well as the effect that colors have on human beings. They tell us, among other 13 , that we do not choose our favorite color as we grow up—we are born with our preference. If youE. commandF. consultedG. manualH. approximatelyI. concerned J. advantage K. multiple L. accordinglyM. individual N. embrace O. qualityUnit SixteenPassage 2If you are looking for information, library shelves are a good place to start. But if you need up-to-the-minute data or have specialized needs, you may find a computerized database more useful, less expensive, and less time 11 .A database, a file of information on one subject or family of subjects, can be stored and 12 in a computer's memory. The speed of the computer then 13 you to recall any item in this file almost 14The three main types of databases are statistical, bibliographic, and full text. Statistical databases store 15 amounts of numerical data, such as wage and price indexes, census information, foreign 16 rates and bond prices. Bibliographic databases store references to and summaries of articles in periodicals and newspapers. Full-text databases offer the complex texts of such 17 as newspaper, magazine, and journal articles.Thousands of databases exist today, and their numbers are growing. Many companies have their in-house database, which is 18 to employees through computer terminals or microcomputers. In addition, several hundred commercial databases are now available to the 19 , with literally millions of items of information readily obtainable. These databases 20 specific fields, such as law and financial forecasting, or general information, such as sports and weather data.A. exchangeB. publicC. instantlyD. coverE. enablesF. consumingG. remainedH. materialsI. hide J. intensively K. vast L. communicationsM. exhausting N. accessible 0. maintainedUnit SeventeenPassage 2No one knows exactly how many disabled people there are in the world, but 11 suggest the figure is over 450 million. The number of disabled people inIndia 12 is probably more than double the total population of Canada.In the United Kingdom, about one in ten people have some disability. Disability is not just something that happens to other people: as we get older, many of us will become less 13 , hard of hearing or have failing eyesight. Disablement can take many forms and occur at any time of life. Some people are born with disabilities. Many others become disabled as they get older. There are many 14 disabling diseases. The longer time goes on, the worse they become. Some people are disabled in accidents. Many others may have a period of disability in the form of a mental illness. All are affected by people's attitude towards them.Disabled people face many 15 barriers. Next time you go shopping or to work or to visit friends, imagine how you would 16 if you could not get up steps, or on to buses and trains. How would you cope if you could not see where you were going or could not hear the traffic? But there are other barriers; 17 can be even harder to break down and ignorance 18 represents by far the greatest barrier of all. It is almost impossible for the able-bodied to fully appreciate what the severely disabled go through, so it is important to 19 attention to these barriers and show that it is the individual person and their ability, not their disability, which 20A. inevitablyB. evaluationsC. estimatesD. manageE. aloneF. countsG. prejudiceH. physicalI. mobile J. indifferently K. withdraw L. progressiveM. regular N. accounts O. drawUnit EighteenPassage 2Social customs and ways of behaving change. Things which were considered impolite many years ago are now11 . Just a few years ago, it was 12 impolite behavior for a man to smoke on the street. No man who thought of himself as being a gentleman would make a 13 of himself by smoking when a lady was in a room. Customs also differ from country to country. Does a man walk on the left or the right of a woman in your country? Ordoesn't it 14 ? What about table manners? Should you use both hands when you are eating? Should you leave one in your lap, or on the table?The Americans and the British not only speak the same language but also 15 a large number of social customs. For example, in both America and England people shake hands when they meet each other for the first time. Also, most Englishmen will open a door for a woman or offer their seat to a woman, and so will most Americans. 16 is important both in England and in America. That is, if a dinner invitation is for 7 o'clock, the dinner guest either arrives 17 to that time or calls up to explain his 18The important thing to remember about social customs is not to do anything that might make other people feel uncomfortable— 19 if they are your guests. There is an old story about a man who gave a formal dinner party. When the food was served, one of the guests started to eat his peas with a knife. The other guests were amused or shocked, but the20 calmly picked up his knifeand began eating in the same way.A. especiallyB. attainableC. closeD. delayE. consideredF. hostG. deliveryH. PreparationI. share J. fool K. specifically L. acceptableM. matter N. Promptness 0. careUnit NineteenPassage 2The economy of the United States after 1952 was the economy of a well-fed, almost fully employed people. Despite 11 alarms, the country escaped any postwar depression and lived in a 12 of boom. An economic survey of the year 1955, a typical year of the 1950's, may be typical as 13 the rapid economic growth of the decade. The national output was 14 at 10 percent above that of 1954(1955 output was estimated at 392 billion dollars). The production of manufactures was about 40 percent more than it had 15 in the years immediately following World War I . The country's business spent about 30 billion dollars for new factories and machinery. National income 16 for spending was almost a third greater than it had been in 1950. Consumers spent about 256 billion dollars; that is about 700 million dollars a day, or about twenty-five million dollars every hour, all round the 17 . Sixty-five million people held jobs and only a little more than two million wanted jobs but could not find them. Only agriculture 18 that it was not sharing in the boom. To some observers this was a sad reflection of the mid-1920's. As farmers' share of their products 19 , marketing costs rose. But there were, among the observers of the national economy, a few who were not as confident as the majority. Those few seemed to fear that the boom could not last long and would20 lead to the opposite—depression.A. eventuallyB. averagedC. graduallyD. stateE. valuedF. formG. declinedH. occasionalI. casual J. argued K. descended L. complainedM. clock N. available O. illustratingUnit TwentyPassage 2Growth of trade will depend greatly on availability of energy sources. There may still be a trillion barrels of recoverable oil in the Middle East. But the oil crisis of 1974 has 11 to renewed interest in coal and to a search for12 sources of energy. Solar, geothermal, and nuclear energy will play a large role in the years to come.Solar energy is available in 13 forms. Buildings can be heated and cooled by direct use of solar radiation, crops and trees, which are the most efficient converters of sunlight into energy, can be grown for their energy potential, wastes can be burned as 14 , sunlight can be converted into DC (direct current) electricity, electric power can be 15 from the sun-warmed surface waters of the ocean, and lastly, solar radiation can be converted into heat that will drive electric power generators. Serious problems still remain as to 16 and storage of solar energy.Geothermal energy is the energy contained within the earth. Heat is abundantly available deep in the earth's core and is constantly being produced. However, this heat is usually located at too deep a level for 17 exploitation. In short, very little is known on the use of geothermal energy, and it has 18 been exploited.Nuclear energy is produced in nuclear power plants. At these plants atoms of uranium are split, thus 19masses of energy. Another source of energyE. stronglyF. figureG. comeH. significantI. exactly J. increase K. proposals L. turnM. purposes N. varieties O. seriousUnit Twenty-EightPassage 2The birth of computers has brought with it a new set of opportunities for mischief and crime. Today, computers are easy to come by and many people know how computer technology 11 . More importantly, the growing use of computer networks can multiply the violation of security, making large numbers of people more vulnerable than would be the case if they were using 12 , stand-alone computers.What's more, computer experts agree that—despite recent widespread publicity-computer viruses are 13 one of the many computer security problems facing the nation.The U. S. Defense Advanced Research Project Agency has requested that the Research Council's Science and Technology Board 14 the security problems posed by computer technology, see what 15 may already exist, review research efforts 16 at avoiding security problems in the future, and evaluate existing policies 17 to computer security. The study committee will examine the 18 of security for a broad spectrum of users, including the business, national security, and academic communities, as well as the 19 public.David. Clark, senior research scientist, Laboratory for Computer Science, Massachusetts Institute of Technology, will chair the 20 of experts inelectronic security, net-work security, computer law, software engineering ? and operating systems. The committee will also include computer users from the defense and banking industries.A. onlyB. worksC. solutionsD. generalE. issueF. fundamentallyG. universalH. assessI. aimed J. single K. committee L. generatesM. relevant N. question O. communityUnit Twenty-NinePassage 2Leonardo da Vinci was the first man to suggest that growing trees add a new ring in their trunks each year. The11 in these rings relates to the physical conditions which the tree experiences. Thus, trees grown in a 12 area and time each develop a pattern or configuration of their rings.This 13 was of little significance until Andrew E. Douglas began to study tree rings in Arizona in 1900. Using a technique called cross dating, he was able to employ tree rings to the study of archaeological sites and date the ruins with 14 . Some were as old as 6700 B. C. ! This study of tree rings is called dendrochronology.In time the cross dating was 15 by a carbon 14 process. This approach measured the amount of carbon 14 radiating from a piece of wood and 16 to determine the age of that wood. Further use of the carbon 14 technique has shown that the radiation process is more complex and less 17 than had been at first thought.The most 18 aspect of tree ring research is now called dendroclimatology. This 19 of the reconstruction of climates and climatic cycles and events from the evidence found in the tree rings. From this it is hoped that a 20 of drought cycles can be determined in the American Southwest. Such information will be of great help in determining the life and ecology of that region of the United States.A. thusB.modelC.variationD.conceptE. accuracyF.excitingG.consistsH.givenI. proposition poses K.further L.patternM. supplemented N.reliable O.excellentUnit ThirtyPassage 2Gary Finkle had his backbone severely 11 in a swimming-pool accident seven years ago. A heavy-set, bearded man of 27, he is one of thousands of Americans who have lost 12 all feeling and movement from their shoulders down. He lives with his wife, Micky, and a female monkey named Jo outside the village of Andes, N. Y.Gary is a participant in a remarkable 13 called Helping Hands: Simian Aides for the disabled. The nonprofit organization 14 the disabled with trained monkeys that reduce the disabled person's 15 on family, friends and hired attendants.To find this out, 15,000 12 persons were followed up to their thirty-fifth year with results:On adult intelligence tests, they 13 as high as they had as children. They were, as a group, in good 14 , physically and mentally. 84 percent of their group were married and seemed 15 with their lives.About 70 percent had graduated from college, though 30 percent had graduated with honors. A few had even 16 out, but nearly half of these had returned to graduate.Of the men, 80 percent were in one of the professions or in business management or semiprofessional jobs. The women who had remained single had office, business, or professional occupation.The group had 17 90 books and 1,500 articles in scientific, scholarly, and literary magazines and had collected more than 100 patents.In a material way they did not do 18 either. Average income was considerably higher among the gifted people, especially the men, than for the country as a 19 , despite their comparative youth.In fact, far from being strange, most of the gifted were turning their early 20 into practical reality.A. madlyB. subjectedC. shapeD. learnedE. wholeF. droppedG. publishedH. promiseI. scored J. content K. gifted L. healthM. badly N. retreated O. objectedUnit Forty-OnePassage 2Considered as a continuous body of fluid, the atmosphere is another kind of ocean. Yet, in 11 of the total amount of rain and snow on land areas in the course of a year, one of the most 12 facts is the very small amount of water in the atmosphere at any given 13 . The volume of the lower seven miles of the atmosphere—the realm of weather events—is 14 four times the volume of the world's oceans. But the atmosphere 15 very little water. It is chiefly in the form of 16 vapor, some of which is carried over land by air currents. If all vapor 17 fell, it would form a layer only about one inch thick. A heavy rainstorm on a given area may use up only a small percentage of the water from the air mass that passes over.How, then, can some land areas receive more than 400 inches of rain per year? How can several inches of rain fall during a single storm in a few minutes or hours? The answer is that rain-yielding air masses are in 18 , and as the driving air mass moves on, new mist air takes its place.The basic source of most water vapor is the ocean. Evaporation, vapor transport, and rainfall make up the 19 movement of water from ocean to atmosphere to land and back to the sea. Rivers return water to the sea. In an underground area of the cycle, flowing bodies of water 20 some waterdirectly into rivers and some directly to the sea.A. containsB. viewC. discardD. movementE. timeF. amazingG. continuousH. roughlyI. amusing J. motion K. rudely L. visionM. invisible N. suddenly O. dischargeUnit Forty-TwoPassage 2Nowadays, the standard for measuring power has changed. These changes foretell a new standard for measuring power. No longer will a nation's political influence be based 11 on the strength of its military forces. Of course, military 12 will remain a primary measure of power. But political influence is also closely 13 to industrial competitiveness. It's often said that without its military the Soviet Union would really be a third-world 14 . The new standard of power and influence that is evolving now places more emphasis on the ability of a country to 15 effectively in the economic markets of the world.America must recognize this new course of events. Our success in shaping world events over the past 40 years has been the direct result of our ability to adapt 16 and to take advantage of the capabilities of our people for the purpose of maintaining peace. Our industry over most of this period was 17 .It is ironic that it is just this industry that has enabled other countries to prosper and in turn to threaten our industrial leadership.The competitiveness of America's industrial base is an issue bigger than theDepartment of Defense and is going to require the efforts of the major 18forces in our society—government, industry, and education. That is not to say__________________________________________________Unit Forty-NinePassage 2John Hunter had three advantages. He had a brother who was a doctor and he was thus able to learn about 11 and their effects. His 12 curiosity led him to observe and study the lives of wild animals in the countryside and he had strong and skillful hands, so 13 to a surgeon. In fact he became in a short time so famous that he was asked to lecture, but John 14 the practical work of the surgeon.Soon after becoming a surgeon Hunter joined the army. He learnt a great deal from his 15 of dealing with soldiers' wounds. In particular, he studied how to 16 a wounded man from bleeding too much, learning thereby how the nerve system 17 in the bodies of animals and humans. But there were many things he did not know about and which could only be learnt by dissection. And this came to be a problem.The Christian church whose authority was complete on many matters frowned on dissection. Surgeons had to paygrave-diggers to steal bodies for dissection. Hunter once paid $ 7, 000 for the body of an eight-foot Irishman whose skeleton can 18 be seen in the Royal College of Surgeons' museum. To be a surgeon was thought so 19 an occupation that many operations were carried out by barbers.But Hunter continued with his 20 , all the time learning more about how our bodies worked, and he found new ways of operating on people so as to save both their limbs and their lives.A. alreadyB. preferredC. experienceD. inferiorE. functionedF. diseasesG. efficientH. stillI. essential J. experiments K. prevent L. naturalM. prevailed N. explanation O. referredUnit FiftyPassage 2Some years ago industries had more freedom than they have now, and they did not need to be as careful as they must today. They did not need to worry a lot about the safety of the new products that they 11 . They did not have to pay much attention to the health and safety of the people who worked for them. Often new products were 12 for the people who used them; often conditions in the work place had very bad 13 on the health of the workers.Of course 14 there were real disasters which attracted the attention of governments and which showed the need for changes. Also scientists who were doing research into the health of workers sometimes produced information which governments could not 15 . At such times, there were inquiries into the 16 of the disasters or the problems. New safety rules were often17 as a result of these inquiries; however, the new rules came too late to protect the people who died or who became18 ill.Today many governments have special departments which protect 19 and workers. In the U. S. , for example, there is a department which tests new airplanes and gives warnings about possible problems. It also makes the rules that aircraft producers must 20 . Another department controls the foods anddrugs that companies sell. A third department looks at the places where people work, and then reports any companies that are breaking the laws which protect the health and safety of workers.A. effectsB. followC. necessarilyD. regulateE. dangerousF. developedG. effortsH. seriouslyI. introduced J. causes K. sometimes L. customersM. invented N. technicians O. ignore级考试15选10专项训练答案(包含大学英语四级考试仔细阅读专项训练答案)Unit one11. L 12. M 13. A 14. C 15. G 16. F17. E 18. N 19. H 20. I 21. B 22. A 23. D 24. B 25. D 26. C27. A 28. C 29. D 30. BUnit TwoII. K 12. L 13. J 14. F 15. E 16. C17. A 18. N 19. D 20. H 21. B 22. C 23. B 24. C 25. C 26. A27. D 28. A 29. A 30. AUnit ThreeII. E 12. I 13. F 14. K 15. G 16. D17. L 18. J 21. D 22. A 23. B 24. D 25. D 26. A27. A。