英语四级仔细阅读模拟试题带答案
英语四级仔细阅读专练题附答案解析
英语四级仔细阅读专练题附答案解析Henry III didn't know much about biology. He went through six wives backin the 1500s, looking for one whocould bear him a son. Scientists now knowthat it's the father's sperm, not the mother's egg, which determines whether a baby is a boy or a girl. And last week researchers at the Genetics and IVF Institute, a private fertility生育能力center in Virginia, announced a new technique that will allow parents to choose the sex of their baby-to-be, before it has even been conceived. The scientist used a tiny laser detector to measure the DNA in millions of sperm cells as they pass single file through a narrow tube, like cattle being herded through a corral牲口栏. In a study published last week, "girl sperm," which has more DNA—the genetic material—in each cell, was collected, while "boy sperm" was discarded. And whenpurified girl sperm was used to impregnate使受孕a group of mothers, 15 of 17 resulting babies turned out to be girls.The researchers say that "sex selection" can also double a mother's chance of having a son and can be usedto avoid genetic diseases that affect only one gender, such as hemophilia血友病. But some experts, like New York University fertility specialist Dr. Jamie Grifo, worry that sex selection could lead to a kind ofin uteri子宫discrimination, especially in cultures where sons are considered superior to daughters. "It's valuing one gender' over another," Grifo says. "I don't think that's something we should be doing." So far, patients at the institute have been asking for both boys and girls, in order to "balance" their families. And some ethics experts say that's fine, as long as parents are just looking for a little gender variety. "If you have three boys, and you want a girl," says University of Texas reproductive-law professor John Robertson, "that's not gender bias at all."练习题：Choose correct answers to the question:1.The DNA in the sperm cells can be measured ______.A.in the same way how the cattle are herdedB.when they pass through a tube one behind the otherC.after they pass through a laser tubeD.when they are scanned by a laser detector all at a time2.The gender of the baby is decided by ______.A.the father's DNAB.the mother's DNAC.the father's spermD.the mother's egg3.According to this passage, the practice of "sex selection" ______.A.can help to prevent all genetic problemsB.is totally unacceptable to ethics expertsC.was already realized five hundred years agoD.will benefit families with certain inheritable diseases4.Girl sperm was preferred to boy sperm in the research most probably because____A.girl sperm contains more genetic materialB.more mother want to have girl babiesC.girl sperm is healthier and more activeD.girl sperm is more easily purified5.It can be concluded from the passage that author’s toward”sex selection”is____A.negativeB.positiveC.neutralD.favorable1.[B] 推理判断题。
四级考试仔细阅读模拟题和答案
四级考试仔细阅读模拟题和答案四级考试仔细阅读模拟题和答案：It is hard to predict howscience is going to turn out, and if it is really good science it is impossibleto predict. If the things to be found are actually new, they are by definitionunknown in advance. You cannot make choices in this matter. You either havescience or you don't, and if you have it you are obliged to accept thesurprising and disturbing pieces of information, along with the neat andpromptly useful bits.The only solid piece ofscientific truth about which I feeltotally confident is that we are profoundlyignorant about nature. Indeed, I regard this as the major discovery of the pasthundred years of biology. It is, in its way, an illuminating (启发) piece of news.It would have amazed the brightest minds of the 18th century Enlightenment (启蒙运动) to be told byany of us how little we know and how bewildering (迷惑) seems the wayahead. It is this sudden confrontation (对抗) with the depth and scopeof ignorance that represents the most significant contribution of the 20th centuryscience to the human intellect. In earlier times, we either pretended tounderstand how things worked or ignored the problem, or simply made up storiesto fill the gaps. Now that we have begun e某ploring in earnest, we are gettingglimpses of how huge the questions are, and how far from being answered.Because of this, we are depressed. It is not so bad being ignorant if you aretotally ignorant; the hard thing is knowing in some detail the reality ofignorance, the worst spots and here and there the not-so-bad spots, but no truelight at the end of the tunnel nor even any tunnels that can yet be trusted.But we are making abeginning, and there ought to be some satisfaction. There are probably noquestions we can think up thatcan't be answered, sooner or later, includingeven the matter of consciousness. To be sure, there may well be questions wecan't think up, ever, and therefore limits to the reach of human intellect, butthat is another matter. Within our limits, we should be able to work our waythrough to all our answers, if we keep at it long enough, and pay attention.1. It can be inferred from the passage thatscientists of the 18th century .A) thought that they knew a great deal andcould solve most problems of scienceB) wereafraid of facing up to the realities of scientific researchC) knew thatthey were ignorant and wanted to know more about natureD) did moreharm than good in promoting man's understanding of nature2. According to the author, really good science_______ .A) wouldsurprise the brightest minds of the 18th century EnlightenmentB) willproduce results which cannot be foreseenC) will helppeople to make the right choice in advanceD) willbring about disturbing results3. Which of thefollowing statemcnts is NOT true of scientists in earlier times?A) Theyinvented false theories to e某plain things they didn'tunderstand.B) Theyfalsely claimed to know all about nature.C) They didnot believe in results from scientific observation.D) They paidlittle attention to the problems they didn't understand.4. The authorbelieves that ______ .A) man canfind solutions to whatever questions concerning nature he can think upB) man can not solve all the problems he canthink up because of the limits of human intellectC) sooner or later man canthink up all the questions concerning nature and answer themD)questions concerningconsciousness are outside the scope of scientific research5. What is theauthor's attitude towards science?A) He isdepressed because of the ignorance of scientists.B) He isdoubtful because of the enormous difficulties confronting it.C) He is confidentthough he is aware of the enormous difficulties confronting it.D) He is delighted because of theilluminating scientific findings.。
大学英语四级仔细阅读专项练习20篇(附答案)
大学英语四级仔细阅读专项练习20篇（附答案）练习一（2010年12月大学英语四级考试真题）Passage OneQuestions 57 to 61 are based on the following passage.It is pretty much a one-way street. While it may be common for university researchers to try their luck in the commercial world, there is very little traffic in the opposite direction. Pay has always been the biggest deterrent, as people with families often feel they cannot afford the drop in salary when moving to a university job. For some industrial scientists, however, the attractions of academia (学术界) outweigh any financial considerations.Helen Lee took a 70% cut in salary when she moved from a senior post in Abbott Laboratories to a medical department at the University of Cambridge. Her main reason for returning to academia mid-career was to take advantage of the greater freedom to choose research questions. Some areas of inquiry have few prospects of a commercial return, and Lee's is one of them.The impact of a salary cut is probably less severe for a scientist in the early stages of a career. Guy Grant, now a research associate at the Unilever Centre for Molecular Informatics at the University of Cambridge, spent two years working for a pharmaceutical (制药的) company before returning to university as a post-doctoral researcher. He took a 30% salary cut but felt it worthwhile for the greater intellectual opportunities.Higher up the ladder, where a pay cut is usually more significant, the demand for scientists with a wealth of experience in industry is forcing universities to make the transition (转换) to academia more attractive, according to Lee. Industrial scientists tend to receive training that academics do not, such as how to build a multidisciplinary team, manage budgets and negotiate contracts. They are also well placed to bring something extra to the teaching side of an academic role that will help students get a job when they graduate, says Lee, perhaps experience in manufacturing practice or product development. “Only a small number of undergraduates willcontinue in an academic career. So someone leaving university who already has the skills needed to work in an industrial lab has far more potential in the job market than someone who has spent all their time on a narrow research project.”57. By “a one-way street” (Line 1, Para. 1), the author means ________.[A] university researchers know little about the commercial world[B] there is little exchange between industry and academia[C] few industrial scientists would quit to work in a university[D] few university professors are willing to do industrial research58. The word “deterrent” (Line 2, Para. 1) most probably refers to something that ________.[A] keeps someone from taking action [C] attracts people's attention[B] helps to move the traffic [D] brings someone a financial burden59. What was Helen Lee's major consideration when she changed her job in the middle of her career?[A] Flexible work hours. [C] Her preference for the lifestyle on campus.[B] Her research interests. [D] Prospects of academic accomplishments.60. Guy Grant chose to work as a researcher at Cambridge in order to ________.[A] do financially more rewarding work[B] raise his status in the academic world[C] enrich his experience in medical research[D] exploit better intellectual opportunities61. What contribution can industrial scientists make when they come to teach in a university?[A] Increase its graduates' competitiveness in the job market.[B] Develop its students' potential in research.[C] Help it to obtain financial support from industry.[D] Gear its research towards practical applications.Passage TwoQuestions 62 to 66 are based on the following passage.Being sociable looks like a good way to add years to your life. Relationships with family, friends, neighbours, even pets, will all do the trick, but the biggest longevity (长寿) boost seems to come from marriage or an equivalent relationship. The effect was first noted in 1858 by William Farr, who wrote that widows and widowers (鳏夫) were at a much higher risk of dying than their married peers. Studies since then suggest that marriage could add as much as seven years to a man's life and two to a woman's. The effect holds for all causes of death, whether illness, accident or self-harm.Even if the odds are stacked against you, marriage can more than compensate. Linda Waite of the University of Chicago has found that a married older man with heart disease can expect to live nearly four years longer than an unmarried man with a healthy heart. Likewise, a married man who smokes more than a pack a day is likely to live as long as a divorced man who doesn't smoke. There's a flip side, however, as partners are more likely to become ill or die in the couple of years following their spouse's death, and caring for a spouse with mental disorder can leave you with some of the same severe problems. Even so, the odds favour marriage. In a 30-year study of more than 10,000 people, Nicholas Christakis of Harvard Medical School describes how all kinds of social networks have similar effects.So how does it work? The effects are complex, affected by socio-economic factors, health-service provision, emotional support and other more physiological (生理的) mechanisms. For example, social contact can boost development of the brain and immune system, leading to better health and less chance of depression later in life. People in supportive relationships may handle stress better. Then there are the psychological benefits of a supportive partner.A life partner, children and good friends are all recommended if you aim to live to 100. The ultimate social network is still being mapped out, but Christakis says: “People are interconnected, so their health is interconnected.”62. William Farr's study and other studies show that _________.[A] social life provides an effective cure for illness[B] being sociable helps improve one's quality of life[C] women benefit more than men from marriage[D] marriage contributes a great deal to longevity63. Linda Waite's studies support the idea that _________.[A] older men should quit smoking to stay healthy[B] marriage can help make up for ill health[C] the married are happier than the unmarried[D] unmarried people are likely to suffer in later life64. It can be inferred from the context that the “flip side” (Line 4, Para. 2) refers to _________.[A] the disadvantages of being married[B] the emotional problems arising from marriage[C] the responsibility of taking care of one's family[D] the consequence of a broken marriage65. What does the author say about social networks?[A] They have effects similar to those of a marriage.[B] They help develop people's community spirit.[C] They provide timely support for those in need.[D] They help relieve people of their life's burdens.66. What can be inferred from the last paragraph?[A] It's important that we develop a social network when young.[B] To stay healthy, one should have a proper social network.[C] Getting a divorce means risking a reduced life span.[D] We should share our social networks with each other.练习二（2010年6月英语四级考试真题）Passage OneQuestions 57 to 61 are based on the following passage.You never see him, but they're with you every time you fly. They record where you are going, how fast you're traveling and whether everything on your airplane is functioning normally. Their ability to withstand almost any disaster makes them seem like something out of a comic book. They're known as the black box.When planes fall from the sky, as a Yemeni airliner did on its way to Comoros Islands in the India Ocean, June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潜水艇) detected the device's homing signal five days later, the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed.In 1958, Australian scientist David Warren developed a flight-memory recorder that would track basic information like altitude and direction. That was the first mode for a black box, which became a requirement on all U.S. commercial flights by 1960. Early models often failed to withstand crashes, however, so in 1965 the device was completely redesigned and moved to the rear of the plane – the area least subject to impact – from its original position in the landing wells (起落架舱). The same year, the Federal Aviation Authority required that the boxes, which were never actually black, be painted orange or yellow to aid visibility.Modern airplanes have two black boxes: a voice recorder, which tracks pilots' conversations, and a flight-data recorder, which monitors fuel levels, engine noises and other operating functions that help investigators reconstruct the aircraft's final moments. Placed in an insulated (隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can withstand massive force and temperatures up to 2,000℉. When submerged, they're also able to emit signals from depths of 20,000 ft. Experts believe the boxes from Air France Flight 447, which crashed near Brazil on June 1,2009, are in water nearly that deep, but statistics say they're still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one plane's black boxes were never recovered.57. What does the author say about the black box?A) It ensures the normal functioning of an airplane.B) The idea for its design comes from a comic book.C) Its ability to ward off disasters is incredible.D) It is an indispensable device on an airplane.58. What information could be found from the black box on the Yemeni airliner?A) Data for analyzing the cause of the crash.B) The total number of passengers on board.C) The scene of the crash and extent of the damage.D) Homing signals sent by the pilot before the crash.59. Why was the black box redesigned in 1965?A) New materials became available by that time.B) Too much space was needed for its installation.C) The early models often got damaged in the crash.D) The early models didn't provide the needed data.60. Why did the Federal Aviation Authority require the black boxes be painted orange or yellow?A) To distinguish them from the colour of the plane.B) To caution people to handle them with care.C) To make them easily identifiable.D) To conform to international standards.61. What do we know about the black boxes from Air France Flight 447?A) There is still a good chance of their being recovered.B) There is an urgent need for them to be reconstructed.C) They have stopped sending homing signals.D) They were destroyed somewhere near Brazil.Passage TwoQuestions 62 to 66 are based on the following passage.The $11 billion self-help industry is built on the idea that you should turn negative thoughts like “I never do anything right” into positive ones like “I can succeed.” Butwas positive thinking advocate Norman Vincent Peale right? Is there power in positive thinking?Researchers in Canada just published a study in the journal Psychological Science that says trying to get people to think more positively can actually have the opposite effect: it can simply highlight how unhappy they are.The study's authors, Joanne Wood and John Lee of the University of Waterloo and Elaine Perunovic of the University of New Brunswick, begin by citing older research showing that when people get feedback which they believe is overly positive, they actually feel worse, not better. If you tell your dim friend that he has the potential of an Einstein, you're just underlining his faults. In one 1990s experiment, a team including psychologist Joel Cooper of Princeton asked participants to write essays opposing funding for the disabled. When the essayists were later praised for their sympathy, they felt even worse about what they had written.In this experiment, Wood, Lee and Perunovic measured 68 students' self-esteem. The participants were then asked to write down their thoughts and feelings for four minutes. Every 15 seconds, one group of students heard a bell. When it rang, they were supposed to tell themselves, “I am lovable.”Those with low self-esteem didn't feel better after the forced self-affirmation. In fact, their moods turned significantly darker than those of members of the control group, who weren't urged to think positive thoughts.The paper provides support for newer forms of psychotherapy (心理治疗) that urge people to accept their negative thoughts and feelings rather than fight them. In the fighting, we not only often fail but can make things worse. Meditation (静思) techniques, in contrast, can teach people to put their shortcomings into a larger, more realistic perspective. Call it the power of negative thinking.62. What do we learn from the first paragraph about the self-help industry?A) It is a highly profitable industry.B) It is based on the concept of positive thinking.C) It was established by Norman Vincent Peale.D) It has yielded positive results.63. What is the finding of the Canadian researchers?A) Encouraging positive thinking many do more harm than good.B) There can be no simple therapy for psychological problems.C) Unhappy people cannot think positively.D) The power of positive thinking is limited.64. What does the author mean by “… you're just underlining his faults” (Line 4, Para.3)?A) You are not taking his mistakes seriously enough.B) You are pointing out the errors he has committed.C) You are emphasizing the fact that he is not intelligent.D) You are trying to make him feel better about his faults.65. What do we learn from the experiment of Wood, Lee and Perunovic?A) It is important for people to continually boost their self-esteem.B) Self-affirmation can bring a positive change to one's mood.C) Forcing a person to think positive thoughts may lower their self-esteem.D) People with low self-esteem seldom write down their true feelings.66. What do we learn from the last paragraph?A) The effects of positive thinking vary from person to person.B) Meditation may prove to be a good form of psychotherapy.C) Different people tend to have different ways of thinking.D) People can avoid making mistakes through meditation.练习三（2013年6月大学英语四级考试真题）Passage OneQuestions 57 to 61 are based on the following passage.Junk food is everywhere. We're eating too much of it. Most of us know what we're doing and yet we do it anyway.So here's a suggestion offered by two researchers at the Rand Corporation: Why not take a lesson from alcohol control policies and apply them to where food is soldand how it's displayed?“Many policy measures to control obesity（肥胖症）assume that people consciously and rationally choose what and how much they eat and therefore focus on providing information and more access to healthier foods,” note the two researchers.“In contrast,” the researchers continue, “many regulations that don't assume people make rational choices have been successfully applied to control alcohol, a substance — like food — of which immoderate consumption leads to serious health problems.”The research references studies of people's behavior with food and alcohol and results of alcohol restrictions, and then lists five regulations that the researchers think might be promising if applied to junk foods. Among them:Density restrictions: licenses to sell alcohol aren't handed out unplanned to all comers but are allotted（分配）based on the number of places in an area that already sell alcohol. These make alcohol less easy to get and reduce the number of psychological cues to drink.Similarly, the researchers say, being presented with junk food stimulates our desire to eat it. So why not limit the density of food outlets, particularly ones that sell food rich in empty calories? And why not limit sale of food in places that aren't primarily food stores?Display and sales restrictions: California has a rule prohibiting alcohol displays near the cash registers in gas stations, and in most places you can't buy alcohol at drive-through facilities. At supermarkets, food companies pay to have their wares in places where they're easily seen. One could remove junk food to the back of the store and ban them from the shelves at checkout lines. The other measures include restricting portion sizes, taxing and prohibiting special price deals for junk foods, and placing warning labels on the products.57. What does the author say about junk food?A) People should be educated not to eat too much.B) It is widely consumed despite its ill reputation.C) Its temptation is too strong for people to resist.D) It causes more harm than is generally realized.58. What do the Rand researchers think of many of the policy measures to control obesity?A) They should be implemented effectively.B) They provide misleading information.C) They are based on wrong assumptions.D) They help people make rational choices.59. Why do policymakers of alcohol control place density restrictions?A) Few people are able to resist alcohol's temptations.B) There are already too many stores selling alcohol.C) Drinking strong alcohol can cause social problems.D) Easy access leads to customers' over-consumption.60. What is the purpose of California's rule about alcohol display in gas stations?A) To effectively limit the density of alcohol outlets.B) To help drivers to give up the habit of drinking.C) To prevent possible traffic jams in nearby areas.D) To get alcohol out of drivers' immediate sight.61. What is the general guideline the Rand researchers suggest about junk food control?A) Guiding people to make rational choices about food.B) Enhancing people's awareness of their own health.C) Borrowing ideas from alcohol control measures.D) Resorting to economic, legal and psychological means.Passage TwoQuestions 62 to 66 are based on the following passage.Kodak's decision to file for bankruptcy（破产）protection is a sad, though not unexpected, turning point for a leading American corporation that pioneered consumer photography and dominated the film market for decades, but ultimatelyfailed to adapt to the digital revolution.Although many attribute Kodak's downfall to “complacency(自满)”, that explanation doesn't acknowledge the lengths to which the company went to reinvent itself. Decades ago, Kodak anticipated that digital photography would overtake film — and in fact, Kodak invented the first digital camera in 1975 — but in a fateful decision, the company chose to shelf its new discovery to focus on its traditional film business.It wasn't that Kodak was blind to the future, said Rebecca Henderson, a professor at Harvard Business School, but rather that it failed to execute on a strategy to confront it. By the time the company realized its mistake, it was too late.Kodak is an example of a firm that was very much aware that they had to adapt, and spent a lot of money trying to do so, but ultimately failed. Large companies have a difficult time switching into new markets because there is a temptation to put existing assets into the new businesses.Although Kodak anticipated the inevitable rise of digital photography, its corporate（企业的）culture was too rooted in the successes of the past for it to make the clean break necessary to fully embrace the future. They were a company stuck in time. Their history was so important to them. Now their history has become a liability.Kodak's downfall over the last several decades was dramatic. In 1976, the company commanded 90% of the market for photographic film and 85% of the market for cameras. But the 1980s brought new competition from Japanese film company Fuji Photo, which undermined Kodak by offering lower prices for film and photo supplies. Kodak's decision not to pursue the role of official film for the 1984 Los Angeles Olympics was a major miscalculation. The bid went instead to Fuji, which exploited its sponsorship to win a permanent foothold in the marketplace.62. What do we learn about Kodak?A) It went bankrupt all of a sudden.B) It is approaching its downfall.C) It initiated the digital revolution in the film industry.D) It is playing a dominant role in the film market.63. Why does the author mention Kodak's invention of the first digital camera?A) To show its early attempt to reinvent itself.B) To show its effort to overcome complacency.C) To show its quick adaptation to the digital revolution.D) To show its will to compete with Japan's Fuji photo.64. Why do large companies have difficulty switching to new markets?A) They find it costly to give up their existing assets.B) They tend to be slow in confronting new challenges.C) They are unwilling to invest in new technology.D) They are deeply stuck in their glorious past.65. What does the author say Kodak's history has become?A) A burden.B) A mirror.C) A joke.D) A challenge.66. What was Kodak's fatal mistake?A) Its blind faith in traditional photography.B) Its failure to see Fuji photo's emergence.C) Its refusal to sponsor the 1984 Olympics.D) Its overconfidence in its corporate culture.练习四（2014年6月英语四级考试真题）Passage OneQuestions 56 to 60are based on the following passage.The question of whether our government should promote science and technology or the liberal arts in higher education isn't an either/or proposition(命题)，although the current emphasis on preparing young Americans for STEM (science, technology, engineering, maths)----related fields can make it seem that way.The latest congressional report acknowledges the critical importance of technicaltraining, but also asserts that the study of the humanities (人文学科)and social sciences must remain central components of America's educational system at all levels. Both are critical to producing citizens who can participate effectively in our democratic society, become innovative (创新的) leaders, and benefit from the spiritual enrichment that the reflection on the great ideas of mankind over time provides.Parents and students who have invested heavily in higher education worry about graduates' job prospects as technological advances and changes in domestic and global markets transform professions in ways that reduce wages and cut jobs. Under these circumstances, it's natural to look for what may appear to be the most “practical” way out of the problem “Major in a subject designed to get you a job” seems the obvious answer to some, though this ignores the fact that many disciplines in the humanities characterized as “soft” often, in fact, lead to employment and success in the long run. Indeed, according to surveys, employers have expressed a preference for students who have received a broadly-based education that has taught them to write well, think critically, research creatively, and communicate easily.Moreover, students should be prepared not just for their first job, but for their 4th and 5th jobs, as there's little reason to doubt that people entering the workforce today will be called upon to play many different roles over the course of their careers. The ones who will do the best in this new environment will be those whose educations have prepared them to be flexible. The ability to draw upon every available tool and insight----picked up from science, arts, and technology—to solve the problems of the future, and take advantage of the opportunities that present themselves, will be helpful to them and the United States.56. What does the latest congressional report suggest?A) STEM-related subjects help students find jobs in the information society.B) The humanities and STEM subjects should be given equal importance.C) The liberal arts in higher education help enrich students' spiritual life.D) Higher education should be adjusted to the practical needs of society.57. What is the main concern of students when they choose a major?A) Their interest in relevant subjects.B) The academic value of the courses.C) The quality of education to receive.D) Their chances of getting a good job.58. What does the author say about the so called soft subjects?A) They benefit students in their future life.B) They broaden students' range of interests.C) They improve students' communication skills.D) They are essential to students' healthy growth.59. What kind of job applicants do employers look for?A) Those who have a strong sense of responsibility.B) Those who are good at solving practical problems.C) Those who are likely to become innovative leaders.D) Those who have received a well-rounded education.60. What advice does the author give to college students?A) Seize opportunities to tap their potential.B) Try to take a variety of practical courses.C) Prepare themselves for different job options.D) Adopt a flexible approach to solving problems.Passage TwoQuestions 61 to 65 are based on the following passage.Energy independence. It has a nice ring to it. Doesn't it? If you think so, you're not alone, because energy independence has been the dream of American president for decades, and never more so than in the past few years, when the most recent oil price shock has been partly responsible for kicking off the great recession.“Energy independence” and its rhetorical (修辞的) companion “energy security” are, however, slippery concepts that are rarely though through. What is it we want independence from, exactly?Most people would probably say that they want to be independent from imported oil. But there are reasons that we buy all that old from elsewhere.The first reason is that we need it to keep our economy running. Yes, there is a trickle（涓涓细流）of biofuel（生物燃料）available, and more may become available, but most biofuels cause economic waste and environmental destruction.Second, Americans have basically decided that they don't really want to produce all their own oil. They value the environmental quality they preserve over their oil imports from abroad. Vast areas of the United States are off-limits to oil exploration and production in the name of environmental protection. To what extent are Americans really willing to endure the environmental impacts of domestic energy production in order to cut back imports?Third, there are benefits to trade. It allows for economic efficiency, and when we buy things from places that have lower production costs than we do, we benefit. And although you don't read about this much, the United States is also a large exporter of oil products, selling about 2 million barrels of petroleum products per day to about 90 countries.There is no question that the United States imports a great deal of energy and, in fact, relies on that steady flow to maintain its economy. When that flow is interrupted, we feel the pain in short supplies and higher prices, At the same time, we derive massive economic benefits when we buy the most affordable energy on the world market and when we engage in energy trade around the world.61. What does the author say about energy independence for America?A) It sounds very attractive.B) It ensures national security.C) It will bring oil prices downD) It has long been everyone's dream.62. What does the author think of biofuels?A) They keep America's economy running healthily.B) They prove to be a good alternative to petroleum.。
四级英语仔细阅读模拟题及答案
四级英语仔细阅读模拟题及答案导读：我根据大家的需要整理了一份关于《四级英语仔细阅读模拟题及答案》的内容，具体内容：仔细阅读是四级考试中的必考题型，在剩下的备考时间里必须抓紧阅读练习，下面我为大家带来四级英语仔细阅读模拟题，供考生阅读练习。
四级英语仔细阅读模拟题(一)A useful...仔细阅读是四级考试中的必考题型，在剩下的备考时间里必须抓紧阅读练习，下面我为大家带来四级英语仔细阅读模拟题，供考生阅读练习。
四级英语仔细阅读模拟题(一)A useful definition of an air pollutantis a compound added directly or indirectly by humans to the atmospherein suchquantities as to affect humans, animals, vegetation, or material adversely (有害地.. Air pollution requires avery flexibledefinition that permits continuous change. When the first air pollution lawswere established inEngland in the fourteenth century, air pollutants werelimited to compounds that could be seen or smelled—a farcry (悬殊的差别. from the extensive list of harmful substances known today. Astechnology has developed andknowledge of the health aspects of variouschemicals has increased, the list of air pollutants has lengthened. Inthefuture, even water vapor (水蒸气. might be consideredan air pollutant under certain conditions.Many of the more important airpollutants, such as sulfur oxides,carbon monoxide, and nitrogen oxides,arefound in nature. As the Earth developed, the concentrations ( 浓度. of these pollutants were altered byvariouschemical reactions; they became components in biogeochemical (生物地球化学的. cycles. These serve as an airpurification scheme by allowing thecompounds to move from the air to the water or soil. On a global basis,naturesoutput of these compounds dwarfs that resulting from human activities. However,human productionusually occurs in a localized area, such as a city.In this localized region, human outputmay be dominant and may temporarily overload the natural purificationscheme ofthe cycles. The result is an increased concentration of noxious ( 有害的. chemicals in the air. Theconcentrations atwhich the adverse effects appear will be greater than the concentrations thatthe pollutants wouldhave in the absence of human activities. The actualconcentration need not be large for a substance to be apollutant; in fact thenumerical value tells us little until we know how much of an increase thisrepresents over the concentration that would occur naturally in the area. Forexample, sulfur dioxide has detectable health effects at0.08 parts per million(ppm., which is about 400 times its natural level.Carbon monoxide, however, has a naturallevel of 0.1 ppm and is not usually apollutant until its levelreaches about 15 ppm.61、It can be inferred from thefirst paragraph that _________A.water vapor is an air pollutant in localized areasB.the definition of air pollution will continue to changeC.a substance becomes an air pollutant only in citiesD.most air pollutants today can be seen or smelled62、In what way can naturalpollutants play an important role in controlling air pollution?A.They function as part of a purification process.B.They are dwarfed by the pollutants produced by human activities.C.They are less harmful to living beings than are other pollutants.D.They have existed since the Earth developed.63、According to the passage,the numerical value Of the concentration level of a substance is only useful ifA.the other substances in the area are knownB.it is a localized areaC.it can be calculated quicklyD.the naturally occurring level is also known64、Which of the following isbest supported by the passage?A.To effectively control pollution, local government should regularlyrevise the air pollution laws.B.One of the most important steps in preserving natural lands is tobetter enforce air pollution laws.C.Scientists should be consulted in order to establish uniform limitsfor all air pollutants.D.Human activities have great impact on air pollution.65、The passage mainlydiscusses _________A.the economic impact on air pollutionB.how much damage air pollutants can causeC.what constitutes an air pollutantD.the quantity of compounds added to the atmosphere四级英语仔细阅读模拟题答案BADDB四级英语仔细阅读模拟题(二)There are people in Italy who cant stand soccer. Not all Canadians love hockey. A similar situation exists in America, where there are those individuals you may be one of them who yawn or even frown when somebody mentions baseball. 『Baseball to them means boring hours watching grown men in funny tight outfits standing around in a field staring away while very little of anything happens.』① They tell you its a game better suited to the 19th century, slow, quiet, gentlemanly. These are the same people you may be one of them who love football because theres the sport that glorifies "the hit".Bycontrast, baseball seems abstract, cool, silent, still.On TV the game is fractured into a dozen perspectives, replays, close?ups. The geometry of the game, however, is essential to understanding it. You will contemplate the game from one point as a painter does his subject; you may, of course, project yourself into the game. It is in this projection that the game affords so much space and time for involvement. The TV wont do it for you.Take, for example, the third baseman. You sit behind the third base dugout and you watch him watching home plate. His legs are apart, knees flexed. His arms hang loose. He does a lot of this. The skeptic still cannot think of any other sports so still, so passive. 『But watch what happens every time the pitcher throws: the third baseman goes up on his toes, flexes his arms or bring the glove to a point in front of him, takes a step right or left, backward or forward, perhaps he glances across the field to check his first basemans position.』② Suppose the pitch is a ball. "Nothing happened," you say. "I could have had my eyes closed."The skeptic and the innocent must play the game. And this involvement in the stands is no more intellectual than listening to music is. Watch the third baseman. Smooth the dirt in front of you with one foot; smooth the pocket in your glove; watch the eyes of the batter, the speed of the bat, the sound of horsehide on wood.If football is a symphony of movement and theatre, baseball is chamber music, a spacious interlocking of notes, chores and responses.1. The passage is mainly concerned with ______.A. the different tastes of people for sportsB. the different characteristics of sportsC. the attraction of footballD. the attraction of baseball2. Those who dont like baseball may complain that ______.A. it is only to the taste of the oldB. it involves fewer players than footballC. it is not exciting enoughD. it is pretentious and looks funny3. The author admits that ______.A. baseball is too peaceful for the youngB. baseball may seem boring when watched on TVC. football is more attracting than baseballD. baseball is more interesting than football4. By stating "I could have had my eyes closed. " the author means (4th paragraph last sentence):A. The third baseman would rather sleep than play the game.B. Even if the third baseman closed his eyes a moment ago, it couldmake no different to the result.C. The third baseman is so good at baseball that he could finish the game with eyes closed all the time and do his work well.D. The consequent was too bad he could not bear to see it.5. We can safely conclude that the author ______.A. likes footballB. hates footballC. hates baseballD. likes baseball四级英语仔细阅读模拟题答案1. D 主旨题。
大学四级英语仔细阅读专项习题附答案
大学四级英语仔细阅读专项习题(一)Of the thousands of different kinds of animals that exist in the world man has learned to make friends with an enormous number. Some are pets, and offer him companionship; some give protection, and some do hard work which man cannot do for himself. Dogs, which serve man in all three capacities, are found in various breeds in all countries of the world. The Husky can live in the cold polar regions, and the Saluki is at home in the hottest parts of Central Africa. The inhabitants of certain countries are dependent for their very lives on the camel. In the West Indies the little donkey, strong and sure-footed, carrying heavy loads even in mountainous places, is a familiar sight.来源：考试大Trained and tamed for many generations, domestic animals are not accustomed to roaming(到处走动) in search of food and shelter. They look to their masters to provide for their needs, and as long as these are supplied, they are content to do what their masters require.All domestic animals need proper food. It must be suitable for them, sufficient in quantity, fresh and clean. Some people feed a pet dog or cat on odds and ends of table scraps, and then wonder why the animal seems listless(倦怠的) and dull. The quantity of food depends on the size of the animal and the amount of exercise it takes. Overfeeding is as bad as underfeeding. Containers for food and water must be washed regularly if the animal is to maintain good health.Even well cared for animals may sometimes fall ill. If this happens, the wise master seeks the best advice he can get. All sorts of medicines and treatments are available for sick animals, and in some countries organizations exist to provide them free or at a cheap price. Useful, friendly, hardworking animals deserve to have some time, money and attention spent on their health.1. What main idea does the author want to convey in the first paragraph?A) There exists thousands of species of animals in the world.B) Man came to establish a close relationship with a number of animals.C) In some regions a donkey seems to be a very useful beast.D) An animal will be useless unless domesticated.2. When an animal is underfed, it will probably ____.A) refuse to obey its masterB) immediately fall illC) require its master to offer some foodD) seek for food on its own3. Which of the following is NOT true of dogs according to the passage?A) They can act as friends, guards, and servants to man.B) They have great adaptation for the environment.C) There live a great variety of breeds of dogs on the globe.D) The Husky and the Saluki are the strongest breed ever known in the world.4. To keep a domestic animal physically fit, its owner is advised ____.A) not to hesitate to spend enormous amount of money on itB) to pay attention to its proper feedingC) not to allow it to take excessive amounts of exerciseD) to join some sort of pet-keeping organizations5. Which of the following would be best TITLE for this passage?A) Domesticated Animals - Man’s Best Fr iendB) Proper Diet - the Road to HealthC) The Advantages of Raising Domestic AnimalsD) Some Tips on Pet-keeping大学四级英语仔细阅读专项习题答案1.B)Man came to establish a close relationship with a number of animals. 黑体部分为第一段两个要点，A只包含了一个要点，C只提到了一头驴。
英语四级仔细阅读模拟练习题及答案
英语四级仔细阅读模拟练习题及答案英语四级仔细阅读模拟练习题及答案英语作为文科科目当中的一个重要组成部分，需要记忆理解的东西比理科要多的多，所以复习的战线需要拉得更长，下面是小编为大家搜索整理的英语四级辅导练习，希望能给大家带来帮助!Japan is getting tough about recycling—and not inthe paper and plastic kind of way. Recently, thecountry requires that all electronic goods—TVs,VCRs, stereos, and more—be recycled. But recyclingwill not beleft to consumers, instead, the devices willbe sent to the original manufacturer for properdisposal.The new law poses a few challenges to manufacturers who are now rushing to set up collectionnetworks and perfecting techniques to disassemble and recycle older products.With an eyetoward the future, they are also integrating easily recycled materials into new products.Plastics, a major component of most electronicproducts,pose a particular obstacle becausetheir quality becomes worse and worse with age,losing strengthand flexibility even ifreprocessed.NEC Corp. overcomes this problem by creating a plastics sandwich, in which thefilling is 100 percent recycled plastic and the outer layers a mixture of 14 percent recycledmaterial.The resulting plastic has sufficient strength and toughness for use as a case fordesktop PCs. The company, in cooperation with plastic maker Sumitomo Dow, has alsodeveloped a new plastic, which engineers claim retains its mechanical properties throughrepeated recycling. NEC uses the plastic, which is also flame-retardant (阻燃的) in batterycases for notebook PCs.Meanwhile, Matsushita Electric, maker of the Panasonic brand, is avoiding plastic in favor ofmagnesium (镁). Magnesium,says the company, is ideal for re cycling because it retains itsoriginal strength throughrepeated reprocessing. Matsushita has developed moldingtechniques to form magnesium into the case for a 21-inch TV. Unfortunately, the magnesiumcase and energy-saving features make the TV about twice as expensive as an ordinarymodel.The company hopes, however, that increased use of magnesium will eventually bringprices down.练习题：Choose correct answers to the question:1. According to the present regulations of Japan, the recycling of paper and plasticwill be the responsibility of______.A.. the governmentB. the manufacturersC. the consumersD. the sellers2. Which of the following is NOT the character of plastics?A. Most electronic products contain plastics.B. It retains its original strength through reprocessing.C. Recycled plastics can be integrated into new products.D. Plastics will lose flexibility after a certain period of time.3.According to the passage, the term “plastic sandwich” refers to_____.A. a kind of sandwich-shaped toy made of plasticsB. a kind of plastics with different integration in each layerC. a kind of plastics with maximum strength and flexibilityD. a kind of plastics made of 100% recycled materials4.In the passage, it is implied but NOT stated that_____.A. disposing the plastics is one of NEC Corp’s businessesB. magnesium is an ideal material for the case of TVC.21-inch TV with magnesium case isn’t very popular so farD. magnesium must be better than the plastics5.The author writes this passage in order to_____.A. informB. instructC. predictD. persuade参考答案1.[C] 推理判断题。
四级英语仔细阅读训练题及答案
四级英语仔细阅读训练题及答案在英语四级中，仔细阅读占有相当大的分值，加强英语仔细阅读的练习尤为重要。
下面店铺为大家带来四级英语仔细阅读训练题，欢迎大家阅读练习。
四级英语仔细阅读训练题原文：By almost any measure, there is a boom in Internet-based instruction. In just a few years, 34 percent of American universities have begun offering some form of distance learning (DL), and among the larger schools, it’s close to 90 percent. If you doubt the popularity of the trend, you probably haven’t heard of the University of Phoenix. It grants degrees entirely on the basis of online instruction. It enrolls 90,000 students, a statistic used to support its claim to be the largest private university in the country.While the kinds of instruction offered in these programs will differ, DL usually signifies a course in which the instructors post syllabi (课程大纲), reading assignment, and schedules on Websites, and students send in their assignments by e-mail. Generally speaking, face-to-face communication with an instructor is minimized or eliminated altogether.The attraction for students might at first seem obvious. Primarily, there’s the convenience promised by courses on the Net: you can do the work, as they say, in your pajamas (睡衣). But figures indicate that the reduced effort results in a reduced commitment to the course. While dropout rate for all freshmen at American universities is around 20 percent, the rate for online students is 35 percent. Students themselves seem to understand the weaknesses inherent in the setup. In a survey conducted for Cornell, the DL division of Cornell University, less than a third ofthe respondents expected the quality of the online course to be as good as the classroom course.Clearly, from the schools’ perspective, there’s a lot of money to be saved. Although some of the more ambitious programs require new investments in servers and networks to support collaborative software, most DL courses can run on existing or minimally upgraded (升级) systems. The more students who enroll in a course but don’t come to camp us, the more school saves on keeping the lights on in the classrooms, paying doorkeepers, and maintaining parking lots. And, while there’s evidence that instructors must work harder to run a DL course for a variety of reasons, they won’t be paid any more, and might well be paid less.四级英语仔细阅读训练题：57. What is the most striking feature of the University of Phoenix?A) All its courses are offered online.B) Its online courses are of the best quality.C) It boasts the largest number of students on campusD) Anyone taking its online courses is sure to get a degree.58.According to the passage , distance learning is basically characterized by_____A) a considerable flexibility in its academic requirementsB) the great diversity of students’ academic backgroundsC) a minimum or total absence of face-to-face instructionD) the casual relationship between students and professors59. Many students take Internet -based courses mainly because they can_____A) earn their academic degrees with much less effortB) save a great deal on traveling and boarding expensesC) select courses from various colleges and universitiesD) work on the required courses whenever and wherever60. What accounts for the high drop-out rates for online students?A) There is no strict control over the academic standards of the courses.B) The evaluation system used by online universities is inherently weak.C) There is no mechanism to ensure that they make the required effort.D) Lack of classroom interaction reduces the effectiveness of instruction.61. According to the passage, universities show great enthusiasm for DL programs for the purpose of_____A) building up their reputationB) cutting down on their expensesC) upgrading their teaching facilitiesD) providing convenience for student四级英语仔细阅读训练题答案：57. A. All its courses are offered online.58. C. a minimum or total absence of face-to-face instruction.59. D. work on the required courses whenever and wherever.60. C. There is no mechanism to ensure that they make the required effort.61. B. cutting down on their expenses.。
英语四级考试阅读模拟题及答案-英语四级考试阅读模拟题及答案
英语四级考试阅读模拟题及答案|英语四级考试阅读模拟题及答案在备考时间加强英语阅读的模拟练习，对于考好英语四级考试非常重要。
下面我为大家带来英语四级考试阅读模拟题，欢迎考生模拟阅读。
英语四级考试阅读模拟题(一)Where do pesticides fit into the picture of environmental disease? We have seen that they now pollute soil,water and food, that they have the power to make our streams fishless and our gardens and woodlands silent and birdless. Man, however much he may like to pretend the contrary, is part of nature. Can he escape a pollution that is now so thoroughly distributed throughout our world: We know that even single exposures to these chemicals, if the amount is large enough, can cause extremely severe poisoning. But this is not the major problem. The sudden illness or death of farmers, farmworkers, and others exposed to sufficient quantities of pesticides is very sad and should not occur. For the population as a whole, we must be more concerned with the delayed effects of absorbing small amounts of the pesticides that invisibly pollute our world.Responsible public health officials have pointed out that the biological effects of chemicals are cumulative over long periods of time, and that the danger to individual may depend on the sum of the exposures received throughout his lifetime. For these veryreasons the danger is easily ignored. It is human nature to shake off what may seem to us a threat of future disaster. Men are naturally most impressed by diseases which have obvious signs, says a wise physician, Dr Rene Dubos, yet some of their worst enemies slowly approach them unnoticed.练习题：Choose correct answers to the question:1.Which of the following is closest in meaning to the sentence Manis part of nature (Para. 1, Lines 3-4)?A. Man appears indifferent to what happens in nature.B. Man acts as if he does not belong to nature.C. Man can avoid the effects of environmental pollution.D. Man can escape his responsibilities for environmental effects of pesticides?2. What is the authors attitude toward the environmental effects of pesticides?A. PessimisticB. IndifferentC. DefensiveD. Concerned3. In the authors view, the sudden death caused by exposure to large amounts of pesticides _____.A. is not the worst of the negative consequences resulting from the use of pesticidesB. now occurs most frequently among all accidental deathsC. has sharply increased so as to become the center of public attentionD. is unavoidable because people cant do without pesticides in farming4. People tend to ignore the delayed effects of exposure to chemical because _____.A. limited exposure to them does little harm to peoples healthB. the present is more important for them than the futureC. the danger does not become apparent immediatelyD. humans are capable of withstanding small amounts of poisoning5. It can be concluded from Dr. Dubos remarks that _____.A. people find invisible diseases difficult to deal withB. attacks by hidden enemies tend to be fatalC. diseases with obvious signs are easy to cureD. people tend to overlook hidden dangers caused by pesticides英语四级考试阅读模拟题答案1.[B] 题干的句子是文章第1段第3句，这是一个带有插入语的简洁句，contrary在此表示跟part of nature相反，因此答案为B。
四级英语仔细阅读训练附答案
四级英语仔细阅读训练附答案Like a needle climbing up a bathroom scale, the number keeps rising. In 1991, 15% ofAmericans were obese(肥胖的); by 1999, that proportion had grown to 27%. Youngsters, whoshould have age and activity ontheir side, are growing larger as well: 19% of Americans under17 are obese. Waistbands have been popping in other western countries too, as physical activityhas declined and diets have expanded. By and large, people in the rich world seem to have lostthe fight against flab(松弛).Meanwhile, poorer nations have enjoyed some success in their battles against malnutrition andfamine. But, according to research presented at the annual meeting of the AmericanAssociation for the Advancement of Science, it is more a case of being out of the frying pan andinto the fire. The most striking example actually in the poor world comes from the Pacificislands, home of the worlds most obese communities. In 1966, 14% of the men on this islandwere obese while 100% of men under the age of 30 in 1996 were obese.This increase in weight has been uneven as well as fast. As a result, undernourished and over-nourished people frequently live cheek by jowl(面颊). The mix can even occur within a singlehousehold.A study of families in Indonesia found that nearly 10% contained both the hungryand the fat. This is a mysterious phenomenon, but might have something to do with peopleof different ages being given different amounts of food to eat.The prospect of heading off these problems is bleak. In manyaffected countries there arecultural factorsto contend with, such as an emphasis on eating large meals together, or onfood as a form. of hospitality.Moreover, there is a good measure of disbelief on the part ofpolicymakers that such a problem Could existin their countries. Add to that reluctance on thepart of governments to spend resources on promoting dietand exercise while starvation is stilla real threat, and the result is a recipe for inaction. Unless something is done soon, it mightnot be possible to turn the clock back.四级英语仔细阅读训练题目1.The first sentence of the passage most probably implies that______.A.many Americans are obsessed with the rising temperature in their bathroomB.more people are overweighed in the United StatesC.people are doing more physical exercises with the help of scalesD.youngsters become taller and healthier thanks to more activities2.As physical exercise declines and diet expands, ______.A.other western countries has been defeated by fatB.obesity has become an epidemic(流行病)of the rich worldC.waistbands begin to be popular in other western countriesD.western countries can no longer fight against obesity3.Which is NOT the point of the example of the Pacific IslandsA.The poor community has shaken off poverty and people are well-fed now.B.Obesity is becoming a problem in the developing world too.C.Excessive weight increase will cause no less harm than the food shortage.D.The problem of overweight emerges very fast.4.Of tackling obesity in the poor world, we can learn from the passage that____A.the matter is so complex as to go beyond our capacityB.no matter what we do, the prospect will always be bleakC.it is starvation, the real threat, that needs to be solvedD.we should take immediate actions before it becomes incurable5.What is the main idea of this passageA.Obesity is now a global problem that needs tackling.B.The weights increase fast throughout the whole world.C.Obesity and starvation are two main problems in the poor world.D.Obesity has shifted from the rich world to the poor world.四级英语仔细阅读训练答案1.[B] 推理判断题。
英语四级仔细阅读训练题附答案
英语四级仔细阅读训练题附答案In the United States, it is not customary to telephone somenone 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 assumes it's a matter of life or death. The time chosen for the call communicates its importance.In social life, time plays a very important part. In the U. S. A. guests tend to feel they are not highly regarded if the invitation to a dinner partyis extended only three or four days before the party date. But it is not truein all countries. In other areas of the world, it may be considered foolish to make an appointment too far in advance because plans which are made for a date more than a week away tend to be forgotten. The meaning of thime differs in different parts of the world. Thus, misunderstandings arise between peopelfrom cultures that treat time differently. Promptness is valued highly in American life, for edample. If people are not prompt, they may be regarded as impolite or not fully responsible. In the U. S. no noe would think of keepinga business associate waiting for an hour, it would be too impolite. A person who is 5 minutes late, he will say a few words of explanation, though perhaps he will not complete the sentence.1."The same meaning is attached to telephone calls made after 11:00 p. m.."Here" attached" means ________a. takenb. drawnc. givend. shown2. Supposing one wants to make a telephone call at dawn, this would mean________.a. the matter is importantb. the matter is somewhat importantc. the matter requires immediate attentiond. it is a matter of life and death3. According to this passage, time plays an important role in ________.a. everyday lifeb. shool lifec. communicationsd. private life4. The best title for this passage is ________.a. the voices of timeb. the importance of timec. the importance of an ammouncementd. time and tide wait for no man5. According to the passage, the author of the article may agree to whichof the following statements?a. It is appropriate to send your invitation cards three or four daysbefore a dinner party date in U. S. A.b. It may be appropriate to send your invitation to your guests three or four days before a dinner party date in some cultures.c. It is best for one to make telephone calls at night because it costs much less.d. If one is less than 5 minutes late, he has to make a short apology.cdcabLiberia, the oldest independent Negro state in West A frica, has been struggling for survial ever since its foundation in 1822. Progress has been hampered by constant hostility between the American Negroes whose families returned there in the early 19th century, and the West Africans whoseancestors never left the continent. Though the two groups are of the same race, they are divided by language and outlook and regard each other with deep suspicion creating a conflict which was not foreseen by Liberia's founders.In addition, neighboring states, native tribel, disease, and poverty have made life dangerous and difficult. The government has tried desperately, through loans and a trickle of trade, to make ends meet. Anxiety about financial matters lessened somewhat when, in 1910, the United States accepted responsibility for Liberia's sruvival. However, not until Harvey Firestone, the American rubber king, decided that the United States must produce itsown rubber - with Liberia as the site of the rubber plantations - did liberia have much hope of paying its debts and balancing its budget.The rubber industry, founded in the 1920's, and the activity that followed it brought both progerss and profit to Liberia. Before that time Liberia had no roads, no mechanical transport and no good port; its people had little education and few tools. Liberians feel that the country is being ruled by rubber. For this reason, the recent discovery of iron ore is important. Liberian leaders are trying to moderate the power of the ruvver industry and to estaglish the country's political and economic independence.1. Liberia has been in idffculty since its independence mainly because________.a. the american negroes do not want to help the country.b. there have been constant hostillity and suspicion between different tribes in the country.c. there haven been constant hostility and suspicion between two groups of the same tride.d. the goverment has adoped a wrong policy2."The government has tried desperately, through loans and a trickle of trade, to make ends meet."to make ends meet" means ________.a. the goverment has to borrow money from othersb. the goverment has to lend money to othersc. the goverment doesn't have to borrow or lend moneyd. the goverment has either to borrow or to lend money3. The country's finance began to improve a bit in ________.a.1822b.1910c.1920d.1920's4. The Liberians's attitude on to improve a bit in ________.a. a total agreementb. a total disagreementc. a hostilityd. not a total agreement5. The best title for this passage is ________.a. American Negroes in West Africab. liberia - a poor countryc. liberia and its developmentd. liberia - a country with rich rubber and ironccbdc感谢您的阅读，祝您生活愉快。
2022年大学英语四级仔细阅读练习及答案解析(10)
2022大学英语四级仔细阅读练习及答案解析(10)62.What is the main micro reason of youth unemployment according to the 3-6paragraphs?依据3-6段说出青年失业问题的微观缘由。
A.They are not with good education and skill backgrounds.他们不具备好的训练和技能背景。
B.There are no adequate jobs for youths in the competitive job market.竞争剧烈的工作市场不能为年轻人供应足够的工作岗位。
C.They have fewer skills，less work experience and smaller networks.他们缺乏技巧，工作阅历缺乏且交际圈狭小。
D.The development of society and economy does not satisfy.经济和社会的进展不能令人满足。
\63.What is the main macro reason ofyouth unemployment?造成青年失业问题的宏观缘由是什么?A.The global economy is suffering from a serious recession.全球经济正在经受严峻的经济衰退。
B.It is closely tied with global economy and complex socialproblems.它与纷繁简单的全球经济和社会问题是密不行分的。
C.The shifting to a knowledge-based economy cabses this problem.学问型经济的转型是罪魁祸首。
D.All nations encounter this annoyed employment issue.全部国家都面临着这一就业问题。
大学英语四级2021年模拟真题与解析：仔细阅读
大学英语四级2021年模拟真题与解析：仔细阅读For an increasing number of students at American universities, old is suddenl y in. The reason is obvious: the graying of America means jobs. Coupled with the aging of the baby-boom generation, a longer life span means that the n ation’s elderly population is bound to expand significantly over the next 50 years. By 2050, 25 percent of all Americans will be older than 65, up from 14 percent in1995. The change poses profound questions for government and s ociety, of course. But it also creates career opportunities in medicine and hea lth professions, and in law and business as well. “In addition to the doctors, we’re going to need more sociologists, biologists, urban planners and special ized lawyers,”says Professor Edward Schneider of the University of Southern California’s (USC) School of Gerontology(老年学).Lawyers can specialize in “elder law”, which covers everything from trusts an d estates to nursing-home abuse and age discrimination(歧视). Businessmen s ee huge opportunities in the elder market because the baby boomers, 74 mill ion strong, are likely to be wealthiest group of retirees in human history. “An y student who combines an expert knowledge in gerontology with, say, an M BA or law degree will have a license to print money,”one professor says.Margarite Santos is a 21-year-old senior at USC. She began college as a biol ogy major but found she was “really bored with bacteria.”So she took a class in gerontology and discovered that she liked it. She says, “I did voluntee r work in retirement homes and it was very satisfying.”1．“... Old is suddenly in”(Line 1, Para.1) most probably means “_____”.A．America has suddenly become a nation of old peopleB．gerontology has suddenly become popularC．more elderly professors are found on American campusesD．American colleges have realized the need of enrolling older students【答案】B【解析】主旨句义题。
英语四级仔细阅读模拟题附答案讲解
英语四级仔细阅读模拟题附答案讲解Most episodes of absent-mindedness forgetting where you left something or wondering why youjust entered aroom-are caused by a simple lack ofattention,says Schacter. “You’re supposedtoremember something, butyou haven’t encoded it deeply.”Encoding, Schacter explains, is a special way of paying attention to an event that has a majorimpact on recalling it later. Failure to encode properly can create annoying situations. Ifyouput your mobile phonein a pocket, for example, and don’t pay attention to what you didbecause you’re involved in a conversation, you’ll probably forget that the phone is in thejacket nowhanging in you wardrobe 衣柜. “Your memory itself isn’t failing you,” saysSchacter. “Rather, you didn’t give your memory system the information it needed.”Lack of interest can also lead to absent-mindedness. “A man who canrecite sports statisticsfrom 30 years ago,” says Zelinski, “may not remember to drop a letter in the mailbox.” Womenhaveslightly better memories than men, possibly because they pay more attention to theirenvironment, and memory relies on justthat.Visual cues can help prevent absent-mindedness, says Schacter. “But be sure the cue is clearand available,” he cautions. If you want to remember to take a medication 药物 with lunch,put thepill bottle on the kitchen table—don’t leave it in the medicine chest and write yourselfa note that you keep in a pocket.Another common episode of absent-mindedness: walking into a room and wondering whyyou’re there. Most likely, you were thinking about something else. “Everyone does this fromtime to time,”says Zelinski. The best thing to do is to return to where you were before entering the room, and you’ll likely remember.练习题：Choose correct answers to the question:1. Why does the author think that encoding properly is very important?A. It helps us understand our memory system better.B. It enables us to recall something form our memory.C. It expands our memory capacity considerably.D. It slows down the process of losing our memory.2. One possible reason why women have better memories than men is that ________.A. they have a wider range of interestsB. they are more reliant on the environmentC. they have an unusual power of focusing their attentionD. they are more interested in what’s happening around them3. A note in the pocket can hardly serve as a reminder because ________.A. it will easily get lostB. it’s not clear enough for you to readC. it’s out of your sightD. it might get mixed up with other things4. What do we learn from the last paragraph?A. If we focus our attention on one thing, we might forget another.B. Memory depends to a certain extent on the environment.C. Repetition helps improve our memory.D. If we keep forgetting things, we’d better return to where we were.5. What is the passage mainly about?A. The process of gradual memory loss.B. The causes of absent-mindedness.C. The impact of the environment on memory.D. A way if encoding and recalling.1.[B] 事实细节题。
英语四级仔细阅读模拟试题附答案
英语四级仔细阅读模拟试题附答案英语四级仔细阅读模拟试题1：Fried foods have long been frowned upon. Nevertheless, the skillet (长柄平底煎锅) is about our handiest and most useful piece of kitchen equipment. Strong woodcutters and others engaged in active labor requiring 4,000calories per day or more will take approximately one-third of their rations prepared in this fashion. Meat, eggs, and French toast cooked in this way are served in millions of homes daily. Apparently the consumers are not beset with more signs of indigestion than afflicted by those who insist upon broiling, roasting, or boiling. Some years ago one of our most eminent physiologists investigated the digestibility of fried potatoes. He found that the pan variety was more easily broken down for assimilation than when deep fat was employed. The latter, however, dissolved within the alimentary tract ( 消化道 ) more readily than the boiled type. Furthermore, he learned, by watching the progress of the contents of the stomach by means of the fluoroscope (荧光检查仪), that fat actually accelerated the rate of digestion. Now all this is quite in contrast with "authority". Volumes have been written on nutrition, and everywhere the dictum ( 权威意见) has been accepted--no fried edibles of any sort for children. A few will go so tar as to forbid this style of cooking wholly. Now and then an expert will be bold enough to admit that he uses them himself, the absence of discomfort being explained on the ground that he possesses a powerful gastric ( 胃的 )apparatus. We can ofcourse sizzle perfectly good articles to death so that they will be leathery and tough. But thorough heating, in the presence of shortening, is not the awful crime that it has been labeled. Such dishes stimulate rather than retard contractions of the gall bladder. Thus it is that bile ( 胆汁 ) mixes with the nutriment shortly after it leaves the stomach.We dont need to allow our foodstuffs to become oil soaked, but other than that, there seems to be no basis for the widely heralded prohibition against this method. But notions become fixed. The first condemnation probably rose because an "oracle" ( 圣贤) suffered from dyspepsia (消化不良) which he ascribed to some fried item on the menu. The theory spread. Others agreed with him, and after a time the doctrine became incorporated in our textbooks. The belief is now tradition rather than proved fact. It should have been refuted long since, as experience has demonstrated its falsity.56. This passage focuses on__________.A. why the skillet is a handy piece of kitchen equipmentB. the digestibility of fried foodsC. how the experts can mislead the public in the area of food preparationD. why fried foods have long been frowned upon57. People engaged in active labor eat fried foods because __________.A. they are healthfulB. they are much cheaperC. they can be easily digestedD. they can provide the calories the workers need58. The author implies that the public should__________.A. prepare some foods by fryingB. avoid fried foods if possibleC. fry foods for adults but not for childrenD. prepare all foods by frying59. When the author says that "an oracle suffered from dyspepsia which he ascribed to some fried item on the menu" he is being__________.A. gratefulB. factualC. sarcasticD. humorous60. The passage was probably taken from__________.A. a medical journalB. a publication addressed to the general publicC. a speech at a medical conventionD. an advertisement for cooking oil英语四级仔细阅读模拟试题答案：56.B定位：根据题干信息this passage focuses on可知解答本题需通观全文。
英语四级仔细阅读练习及答案解析
英语四级仔细阅读练习及答案解析(1)Section CDirections：There are 2 passages in this section.Each passage isfollowed by some questions or unfinished statements.For each ofthem there are four choices marked A.，B.，C.and D..You shouM decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 56 to 60 are based on thefollowingpassage.With so many of the deaths each year from around the world directly related to poor health choices we make.world health leaders have set a goal of lowering the number of preventable deaths by 25%from 2010 rates by 2025.That would save 37 million lives over 15 years.Reporting in thejournal Lancet，public health experts note that the ways to prevent those deaths areat surprising.But acting on those strategies will take individual and political will.Heres how the experts hope to do it.Not smoke.The UN General Assembly set a target of cutting smoking around the world by 30%by 2025.Already,higher-income nations that already adopted smoking bans in public places and instituted tobacco taxes have seen drops in smoking rates，however,residents in lower-income nations continue to light up at high rates.Limit excessive drinking.While moderate amounts of alcohol have been linked to some health benefits，overindulging can increase the risk of certain cancers and liver disease，as well as contribute to high blood cating people about the risks of excessive drinking，as well as instituting taxes on alcoholic products，has been somewhat successful in curbing(遏制)abuse.Cut back on salt.High sodium (钠)diets can increase blood pressure and contribute to heart disease and stroke，and in many developed countries，people eat several times the amount the salt their bodies need.In the U.S.，the average American consumes about 800mg more salt every day than health experts consider acceptable.Promoting alternatives，such as the citric acid in lemons，to satisfy the need for salt， Call help to bring sodiunl consumption down.Get blood pressure under ck of exercise and high sodium diets contribute to hypertension(高血压)，and uncontrolled high blood pressure can lead to stroke and heart disease.Monitoring blood pressure with regular screenings，and treating elevated levels with changes in diet and exercise，or medications if necessary,are the most effective ways to address this risk factor.Address diabetes.Closely tied to the obesity epidemic(肥胖病)that now affects developing as well as developed nations，diabetes can increase the risk of heart disease，kidney disease and other conditions that can shorten life.Studies show that lifestyle changes incorporating healthy diets low in sugar and physical activity call be as effective as medications in keeping blood sugar levels in check.56.What does the author mean by sayin9“acting on those strategies will take individual and political will”(Line 4-5，para.1)?A.Both politicians and individuals wish to put the strategies into practice.B. Conducting those strategies needs to consider both personal and official will.C.Carrying out those strategies needs both individual and govemmental support.D.Either individual or government can carry out those strategies.57.What have high.income countries done to smoking?A. Banned smoking in the public and reduced tobacco taxes.B.Banned public smoking and established tobacco taxes.C. Dropped smoking rates and banned smoking in public.D. Dropped smoking rates and lowered tobacco taxes.58.What is the authors suggestion to sodium consumption?A.Eat lemons instead of excessive salt to cut down sodium consumption.B.Take in as less salt as possible for the sake of health.C. Take in at least 800mg of salt every day.D.Never take in salt but citric acid to keep fit.59.What carl you learn about hypertension from the passage?A. Moderate amount of alcoholis good for blood pressure contr01.B.American people have a less opportunity to develop hypertension.C.Regular blood pressure monitoring can reduce the risk of diabetes.D.Controlling blood pressure properly can reduce the risk of stroke and heart disease.60.What should we do to address diabetes?A.Keep a low.sugar diet.B.Take physical exercise.C. Receive drug treatment.D. All of the above.56.What does the author mean by saying“acting on those strategies will take individual and political will”(Line4.5，para.1)?作者说引号中的这句话是什么意思?A.Both politicians and individuals wish to put the strategies into practice.政府和个人都希望将这些策略投入使用。
大学英语四级阅读理解模拟试题及答案
大学英语四级阅读理解模拟试题及答案大学英语四级阅读理解模拟试题及答案「篇一」1. C 细节题。
因为Leadville可以为Tabor带来巨富。
这一点不是Leadville得名的原因，因为在文章第二段中，讲到这一点时，提及三个原因：A.因为Tabor成为当地的居民代表人物，B.因为在Leadville有丰富的铅的储藏量。
D.因为Leadville是因为Tabor重要而起的名。
2. D 词汇题。
第二段中grubstake的词义与D所述内容是相同的，即“供给探矿者资金，衣物，食品以及其他物品”。
3. A 细节题。
Tabor第一次真正发财是他为两名矿工提供资助，为此他获得他们矿资源三分之一的股份。
见文章第三段4-9行内容：两名开矿者从Tabor那儿借走价值17美元的物品，作为回报，Tabor获得他们矿资源三分之一股份。
于是两位开矿者在一座山旁的不毛之地开始挖掘，九天之后，发现了银的富矿，于是Tabor又将两人的.股份全买下，这样，银矿属于Tabor一个人所有，这个矿就是后来著名的“匹兹堡”矿。
Tabor用17美元的投资换来了130万美元的收获。
4. B 推断题。
由原文可知泰勃的财产来源是有一定偶然性的，但是毕竟也是基于他开创“grubstake”模式，因为A、D都不对，C更是没有根据，因为他还没有娶第二位夫人这一切就发生了。
分析泰勃的做法，会得出B选项所示的结论。
5. B 推断题。
如果本文是一篇文章的第一部分，那么在文章的第二部分将介绍谁呢?可以从文章第一句分析出来，在Leadville的黄金年代，其多彩的特点当中，Tabor及其第二任妻子Elizabeth McCourt是值得大书特书的，接着，文章都在讲述有关H.A.W.Tabor发家致富的历史，如先买下匹兹堡矿，后又买下Matchless矿，最后成为市长，代理州长，等等，所以涉及到的全是男主人公，因此下边再讲的话，应成为女主人公即Elizabeth McCourt的天地了，她是Tabor的第二任妻子。
大学英语四级(仔细阅读)专项练习试卷7(题后含答案及解析)
大学英语四级（仔细阅读）专项练习试卷7(题后含答案及解析) 题型有：1.Many families in the United States have a larger income now than ever before, but people are finding it difficult to make ends meet anyway. Almost everyone is wondering, “What happens to all my money? I never seem to have anything left to put away.”Why isn’t a dollar worth as much as it used to be? One dollar is always worth the same amount, that is, 100 cents. But the value of a dollar is how much it can buy. The value of money depends on the cost of living. Economists say that the cost of living is the money that a family must pay for the necessities of life such as food, housing or rent, clothes and medical expenses. For many years now, the cost of living has increased greatly, so the value of the dollar has decreased. When a dollar has a low value, you cannot buy as many things with it. No one fully understands why the cost of living keeps increasing, but economists believe that workers and producers can make prices go up. As workers earn more money, they have more money to spend, so they demand more goods. If there is a great demand for certain goods, the prices of these goods go up. At the same time, if there’s a shortage of goods, the price also goes up. For example, if everyone wants to buy more and more gas, the price of gas goes up. When companies withhold gas from buyers, they can also make the price of gas go up. Families need to know what happens to their money. They need to make their income meet the cost of living, so many people plan a family budget. A budget is a list of monthly expenses. If your expenses add up to more than your income, you must find ways to save money. Maybe you’re spending too much on entertainment. Or if you’re spending too much on clothes, you may want to sew your own clothes. Budgeting helps you spend your money wisely as the cost of living increases.1．What has troubled many families in the United States?A．A not-large-enough income.B．Nothing is left over to put away.C．The increasing cost of living.D．A shortage of certain goods.正确答案：C解析：推断题。
2023上半年英语四级仔细阅读模拟题及答案1
2023上半年英语四级仔细阅读模拟题及答案12023上半年英语四级仔细阅读模拟题及答案(1)There is evidence that the usual variety of high blood pressure is, in part, a familial disease. Since families have similar genes as well as similar environments, familial diseases could be due to shared genetic influences, to shared environmental factors, or to both. For some years, the role of oneenvironment factor commonly shared by families, namely dietary salt (i.e., sodium chloride), has been studied at Brookhaven National Laboratory. These studies suggest that long excess salt intake can lead to high blood pressure in man and animals. Some individuals, however, and some rats consume large amounts of salt without developing high blood pressure. No matter how strictly all environmental factors were controlled in these experiments, some salt-fed animals never developed hypertension whereas a few rapidly developed very severe hypertension followed by early death. These marked variations were interpreted to result from differences in genetic constitution.By mating long successive generations of those animals that failed to develop hypertension from salt intake, a resistant strain (the " R" strain) has been evolved in which consumption of large quantities of salt fails to influence the blood pressure significantly. In contrast, by mating only animals that quickly develop hypertension from salt, sensitive strain (the "S" strain) has also been developed.The availability of these two strains permits investigations possible. They provide a plausible laboratory model on which to investigate some clinical aspects of the human hypertension. More important, there might be the possibility of developing methods by which genetic susceptibility (敏感性) of human beings to high blood pressure can be defined without waiting for its appearance. Radioactive sodium 22 was an important "tool" in working out the characteristics of the sodium chloride metabolism.21. The study of the effects of salt on high blood pressure was carried out_______.A. as members of the same family tend to use similar amounts of saltB. to explore the long-term use of a sodium based substanceC. because it was proven that salt caused high blood pressureD. because of the availability of chemically pure salt and its derivatives22. The main difference between "S" and "R" rats is their_______.A. need for sodium 22B. rate of matingC. reaction to saltD. type of blood23. We can infer from the article that sodium 22 can be used to_______.A. control high blood pressureB. cure high blood pressure caused by saltC. tell the "S" rats from the "R" ratsD. determine what a sodium chloride metabolism is like24. The most beneficial results of the research might be_______.A. development of diets free of saltB. an early cure for high blood pressureC. control of genetic agents that cause high blood pressureD. the early identification of potential high blood pressure victims25. Which of the statements best relates the main idea of this article?A. When salt is added rats and human beings react similarly.B. The near future will see a cure for high blood pressure.C. The medical field is desperately in need of research.D. A tendency toward high blood pressure may be a hereditary factor.答案21. A 22. C 23. D 24. D 25. D。
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英语四级仔细阅读模拟试题带答案导读：我根据大家的需要整理了一份关于《英语四级仔细阅读模拟试题带答案》的内容，具体内容：大学英语四级阅读理解试题是试卷中分值最重的题型，为了提高大家的阅读理解能力，下面是我为大家带来，希望对大家的学习有所帮助!英语四级仔细阅读模拟试题1：Educators...大学英语四级阅读理解试题是试卷中分值最重的题型，为了提高大家的阅读理解能力，下面是我为大家带来，希望对大家的学习有所帮助!英语四级仔细阅读模拟试题1：Educators today are more and more often heard to say that computer literacy is absolutely necessary for college students. Many even argue that each incoming freshman should have permanent access to his or hcr own microcomputer. What advantages do computers offer the college students?Any student who has used a word processor will know one compelling reason to use a computer: to write papers. Although not all students feel comfortable composing on a word processor, most find revising and editing much easier on it. One can alter, insert, or delete just by pressing a few keys, thus eliminating the need to rewrite or re-type. Furthermore, since the revision process is less burdensome, students are more likely to revise as often as is necessary to end up with the best paper possible. For these reasons, many freshmanEnglish courses require the use of a word processor.Computers are also useful in the context of language courses, where they are used to drill students in basic skills. Software programs reinforce ESL(English as a Second Language ) instruction, as well as instruction in French, German, Spanish, and other languages. By using these programs on a regular basis, students can improve their proficiency in a language while proceeding at their own pace.Science students take advantage of computers in many ways. Using computer graphic capabilities, for example, botany students can represent and analyze different plant growth patterns. Medical students can learn to interpret computerized images of internal body structures. Physics students can complete complex calculations far more quickly than they could without the use of computer.Similarly, business and accounting students find that computer spreadsheet programs are all but indispensable to many aspects of their work, while students pursuing careers in graphic arts. marketing, and public relations find that knowledge of computer graphic is important. Education majors learn to develop grading systems using computers, while social science students use computers for analyzing and graphically displacing their research results.It is no wonder, then, that educators support the purchase and use of microcomputers by students. A versatile tool, the computer can help students learn. And that is, after all, the reason for going to college.56. The word "literacy" (Line 1, Paragraph 1) means__________.A. the ability to read and writeB. the ability to useC. literatureD. the knowledge of language57. The main purpose of this passage is to __________.A. persuade the educators to increase computer use in their own classroomB. analyze advantages and disadvantages of computer use among college studentsC. identify some of the ways that computers benefit college studentsD. describe how computers can be used to teach foreign languages58. According to the author, a word processor can be used to __________.A. revise papersB. retype papersC. reduce the psychological burden of writing papersD. improve the writing skills of a student59. In this passage, the writers argument is developed primarily through the use of __________.A. cause-effect analysisB. comparison and contrastC. inductionD. examples60. According to the author, the reason for students to go to college is__________.A. to learn somethingB. to perfect themselvesC. to improve computer skillsD. to make the best use of computers英语四级仔细阅读模拟试题答案：56.B定位：根据题干信息可将答案直接定位到第一段第一句。
解析：literacy最基本的意思是tlle ability to read and write，但在本文中的literacy出现于第一段：Educators today are more and more often heard to say that computer literacy is absolutely necessary for college students.因此，此处literacy引申为"使用的能力"。
故选B。
57.C定位：根据题干信息main purpose of this passage可知解答本题需要通观全文。
解析：在文章开头处作者提到："现在，越来越多的教育专家认为大学生一定要懂电脑。
甚至还有许多人认为每个大学新生都应该随时能使用电脑。
那么，电脑能够给大学生带来什么好处呢?"显然，作者下面要讲的就是拥有电脑对大学生的多种好处。
故C为正确选项。
B项也比较有迷惑性，但文章并未提到disadvantages.故排除。
58.A定位：根据题干信息wordprocessorcanbe usedto可将答案定位到第二段第二、三句。
解析：第二段提到："虽然并非所有学生都喜欢在word文档里写东西，但是大部分学生都发现在电脑上进行修改和编辑更加容易。
只需按下几个键，你就可以修改、插入或者删除，无需重写或重新输入。
"可见，word 程序能帮助学生编辑论文。
故选A。
59.D定位：根据题干信息the writers argument is developed primarily through可知解答本题需要通观全文。
解析：作者为了说明自己的论点，即"拥有电脑对大学生的多种好处"，举了很多例子：他首先指出电脑在写论文时的用途，接着说明电脑在语言学习中的用途，然后又说明了电脑对理科学生的重要性，最后还说明其对商务专业、会计专业、教育学以及社会科学等专业的学生有何帮助。