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大學(xué)英語(yǔ)四級(jí)精選題閱讀題及答案
想要提高英語(yǔ)四級(jí)考試成績(jī)，離不開平時(shí)的閱讀積累練習(xí)。下面小編為大家?guī)?lái)大學(xué)英語(yǔ)四級(jí)精選題閱讀題，供考生閱讀練習(xí)。
大學(xué)英語(yǔ)四級(jí)題閱讀題及答案 1
Priscilla Ouchida’s “energy-efficient” house turned out to be a horrible dream. When she and her engineer husband married a few years ago, they built a $100,000, three-bedroom home in California. Tightly sealed to prevent air leaks, the house was equipped with small double-paned (雙層玻璃的) windows and several other energy-saving features. Problems began as soon as the couple moved in, however. Priscilla’s eyes burned. Her throat was constantly dry. She suffered from headaches and could hardly sleep. It was as though she had suddenly developed a strange illness.
Experts finally traced the cause of her illness. The level of formaldehyde (甲醛) gas in her kitchen was twice the maximum allowed by federal standards for chemical workers. The source of the gas? Her new kitchen cabinets and wall-to-wall carpeting.
The Ouchidas are victims of indoor air pollution, which is not given sufficient attention partly because of the nation’s drive to save energy. The problem itself isn’t new. “The indoor environment was dirty long before energy conservation came along,” says Moschandreas, a pollution scientist at Geomet Technologies in Maryland. “Energy conservation has tended to accentuate the situation in some cases.”
The problem appears to be more troublesome in newly constructed homes rather than old ones. Back in the days when energy was cheap, home builders didn’t worry much about unsealed cracks. Because of such leaks, the air in an average home was replaced by fresh outdoor air about once an hour. As a result, the pollutants generated in most households seldom build up to dangerous levels.
31. It can be learned from the passage that the Ouchidas’ house ________.
A) is well worth the money spent on its construction
B) is almost faultless from the point of energy conservation
C) failed to meet energy conservation standards
D) was designed and constructed in a scientific way
32. What made the Ouchidas’ new house a horrible dream?
A) Lack of fresh air.
B) Poor quality of building materials.
C) Gas leakage in the kitchen.
D) The newly painted walls.
33. The word “accentuate” (Line 4, Para. 3) most probably means “________”.
A) relieve
B) accelerate
C) worsen
D) improve
34. Why were cracks in old houses not a big concern?
A) Because indoor cleanliness was not emphasized.
B) Because energy used to be inexpensive.
C) Because environmental protection was given top priority.
D) Because they were technically unavoidable.
35. This passage is most probably taken from an article entitled “________”.
A) Energy Conservation
B) Houses Building Crisis
C) Air Pollution Indoors
D) Traps in Building Construction
大學(xué)英語(yǔ)四級(jí)精選題閱讀題答案
31. B 32. A 33. C 34. B 35. C
大學(xué)英語(yǔ)四級(jí)題閱讀題及答案 2
Engineering students are supposed to be examples of practicality and rationality, but when it comes to my college education I am an idealist and a fool. In high school I wanted to be an electrical engineer and, of course, any sensible student with my aims would have chosen a college with a large engineering department, famous reputation and lots of good labs and research equipment. But that’s not what I did.
I chose to study engineering at a small liberal-arts (文科) university that doesn’t even offer a major in electrical engineering. Obviously, this was not a practical choice; I came here for more noble reasons. I wanted a broad education that would provide me with flexibility and a value system to guide me in my career. I wanted to open my eyes and expand my vision by interacting with people who weren’t studying science or engineering. My parents, teachers and other adults praised me for such a sensible choice. They told me I was wise and mature beyond my 18 years, and I believed them.
I headed off to college sure I was going to have an advantage over those students who went to big engineering “factories” where they didn’t care if you have values or were flexible. I was going to be a complete engineer: technical genius and sensitive humanist (人文學(xué)者) all in one.
Now I’m not so sure. Somewhere along the way my noble ideals crashed into reality, as all noble ideals eventually do. After three years of struggling to balance math, physics and engineering courses with liberal-arts courses, I have learned there are reasons why few engineering students try to reconcile (協(xié)調(diào)) engineering with liberal-arts courses in college.
The reality that has blocked my path to become the typical successful student is that engineering and the liberal arts simply don’t’ mix as easily as I assumed in high school. Individually they shape a person in very different ways; together they threaten to confuse. The struggle to reconcile the two fields of study is difficult.
26. The author chose to study engineering at a small liberal-arts university because he ________.
A) wanted to be an example of practicality and rationality
B) intended to be a combination of engineer and humanist
C) wanted to coordinate engineering with liberal-arts courses in college
D) intended to be a sensible student with noble ideals
27. According to the author, by interacting with people who study liberal arts, engineering students can ________.
A) balance engineering and the liberal arts
B) receive guidance in their careers
C) become noble idealists
D) broaden their horizons
28. In the eyes of the author, a successful engineering student is expected ________.
A) to have an excellent academic record
B) to be wise and mature
C) to be imaginative with a value system to guide him
D) to be a technical genius with a wide vision
29. The author’s experience shows that he was ________.
A) creative
B) ambitious
C) unrealistic
D) irrational
30. The word “they” in “...together they threaten to confuse.” (Line 3, Para. 5) refers to ________.
A) engineering and the liberal arts
B) reality and noble ideals
C) flexibility and a value system
D) practicality and rationality
大學(xué)英語(yǔ)四級(jí)精選題閱讀題答案
26. B 27. D 28. D 29. C 30. A
大學(xué)英語(yǔ)四級(jí)題閱讀題及答案 3
Section B
Directions: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.
Resilience Is About How You Recharge, Not How You Endure
[A] As constant travelers and parents of a 2-year-old, we sometimes fantasize about how much work we can do when one of us gets on a plane, undistracted by phones, friends, or movies. We race to get all our ground work done: packing, going through security, doing a last-minute work call, calling each other, then boarding the plane. Then, when we try to have that amazing work session in flight, we get nothing done. Even worse, after refreshing our email or reading the same studies over and over, we are too exhausted when we land to soldier on with (繼續(xù)處理) the emails that have inevitably still piled up.
[B] Why should flying deplete us? We’re just sitting there doing nothing. Why can’t we be tougher, more resilient (有復(fù)原力的) and determined in our work so we can accomplish all of the goals we set for ourselves? Based on our current research, we have come to realize that the problem is not our hectic schedule or the plane travel itself; the problem comes from a misconception of what it means to be resilient, and the resulting impact of overworking.
[C] We often take a militaristic, “tough” approach to resilience and determination like a Marine pulling himself through the mud, a boxer going one more round, or a football player picking himself up off the ground for one more play. We believe that the longer we tough it out, the tougher we are, and therefore the more successful we will be. However, this entire conception is scientifically inaccurate.
[D] The very lack of a recovery period is dramatically holding back our collective ability to be resilient and successful. Research has found that there is a direct correlation between lack of recovery and increased incidence of health and safety problems. And lack of recovery—whether by disrupting sleep with thoughts of work or having continuous cognitive arousal by watching our phones—is costing our companies $62 billion a year in lost productivity.
[E] And just because work stops, it doesn’t mean we are recovering. We “stop” work sometimes at 5pm, but then we spend the night wrestling with solutions to work problems, talking about our work over dinner, and falling asleep thinking about how much work we’ll do tomorrow. In a study just released, researchers from Norway found that 7.8% of Norwegians have become workaholics(工作狂). The scientists cite a definition of “workaholism” as “being overly concerned about work, driven by an uncontrollable work motivation, and investing so much time and effort in work that it impairs other important life areas.”
[F] We believe that the number of people who fit that definition includes the majority of American workers, which prompted us to begin a study of workaholism in the U.S. Our study will use a large corporate dataset from a major medical company to examine how technology extends our working hours and thus interferes with necessary cognitive recovery, resulting in huge health care costs and turnover costs for employers.
[G] The misconception of resilience is often bred from an early age. Parents trying to teach their children resilience might celebrate a high school student staying up until 3am to finish a science fair project. What a distortion of resilience! A resilient child is a well-rested one. When an exhausted student goes to school, he risks hurting everyone on the road with his impaired driving; he doesn’t have the cognitive resources to do well on his English test; he has lower self-control with his friends; and at home, he is moody with his parents. Overwork and exhaustion are the opposite of resilience and the bad habits we acquire when we’re young only magnify when we hit the workforce.
[H] As Jim Loehr and Tony Schwartz have written, if you have too much time in the performance zone, you need more time in the recovery zone, otherwise you risk burnout. Gathering your resources to “try hard” requires burning energy in order to overcome your currently low arousal level. It also worsens exhaustion. Thus the more imbalanced we become due to overworking, the more value there is in activities that allow us to return to a state of balance. The value of a recovery period rises in proportion to the amount of work required of us.
[I] So how do we recover and build resilience? Most people assume that if you stop doing a task like answering emails or writing a paper, your brain will naturally recover, so that when you start again later in the day or the next morning, you’ll have your energy back. But surely everyone reading this has had times when you lie in bed for hours, unable to fall asleep because your brain is thinking about work. If you lie in bed for eight hours, you may have rested, but you can still feel exhausted the next day. That’s because rest and recovery are not the same thing.
[J] If you’re trying to build resilience at work, you need adequate internal and external recovery periods. As researchers Zijlstra, Cropley and Rydstedt write in their 2014 paper: “Internal recovery refers to the shorter periods of relaxation that take place within the frames of the work day or the work setting in the form of short scheduled or unscheduled breaks, by shifting attention or changing to other work tasks when the mental or physical resources required for the initial task are temporarily depleted or exhausted. External recovery refers to actions that take place outside of work—e.g. in the free time between the work days, and during weekends, holidays or vacations.” If after work you lie around on your bed and get irritated by political commentary on your phone or get stressed thinking about decisions about how to renovate your home, your brain has not received a break from high mental arousal states. Our brains need a rest as much as our bodies do.
[K] If you really want to build resilience, you can start by strategically stopping. Give yourself the resources to be tough by creating internal and external recovery periods. Amy Blankson describes how to strategically stop during the day by using technology to control overworking. She suggests downloading the Instant or Moment apps to see how many times you turn on your phone each day. You can also use apps like Offtime or Unplugged to create tech free zones by strategically scheduling automatic airplane modes. The average person turns on their phone 150 times every day. If every distraction took only 1 minute, that would account for 2.5 hours a day.
[L] In addition, you can take a cognitive break every 90 minutes to charge your batteries. Try to not have lunch at your desk, but instead spend time outside or with your friends—not talking about work. Take all of your paid time off, which not only gives you recovery periods, but raises your productivity and likelihood of promotion.
[M] As for us, we’ve started using our plane time as a work-free zone, and thus time to dip into the recovery phase. The results have been fantastic. We are usually tired already by the time we get on a plane, and the crowded space and unstable internet connection make work more challenging. Now, instead of swimming upstream, we relax, sleep, watch movies, or listen to music. And when we get off the plane, instead of being depleted, we feel recovered and ready to return to the performance zone.
36. It has been found that inadequate recovery often leads to poor health and accidents.
37. Mental relaxation is much needed, just as physical relaxation is.
38. Adequate rest not only helps one recover, but also increases one’s work efficiency.
39. The author always has a hectic time before taking a flight.
40. Recovery may not take place even if one seems to have stopped working.
41. It is advised that technology be used to prevent people from overworking.
42. Contrary to popular belief, rest does not equal recovery.
43. The author has come to see that his problem results from a misunderstanding of the meaning of resilience.
44. People’s distorted view about resilience may have developed from their upbringing.
45. People tend to think the more determined they are, the greater their success will be.
答案：
36.D
37. J
38. L
39. A
40. E
41. K
42. I
43.B
44. G
45. C
四級(jí)閱讀理解答案：詞匯理解
26. G)habitats
【語(yǔ)法判斷】marine是形容詞，表示“海洋的”，后面應(yīng)該跟一個(gè)名詞。符合條件的名詞有experiences(經(jīng)驗(yàn))、exterior(外部)、habitats(棲息地)、investment(投資)、territory(領(lǐng)土)、victim(受害人)。
【語(yǔ)意判斷】從上下文可知，暗礁是潛泳和保護(hù)海洋______的圣地，所以應(yīng)該選habitats，海洋棲息地。
27. M)stripped
【語(yǔ)法判斷】此處謂語(yǔ)不完整，要填寫動(dòng)詞，由was可知要使用被動(dòng)語(yǔ)態(tài)。符合條件的動(dòng)詞有depressed(使…沮喪)、stripped(剝奪、剝離)。
【語(yǔ)意判斷】被沉下去的A300被______了所有有可能對(duì)環(huán)境有害的東西，所以應(yīng)該選stripped，被剝離了。
28. A)create
【語(yǔ)法判斷】此處是倒裝句，the sunken plane will后面應(yīng)該跟動(dòng)詞原形。符合條件的動(dòng)詞有create(創(chuàng)作、創(chuàng)造)、innovate(發(fā)明)。
【語(yǔ)意判斷】被沉默的飛機(jī)不僅僅將會(huì)給人工暗礁的生長(zhǎng)_____完美的骨架，所以應(yīng)該選create，創(chuàng)造出。
29. L)stretches
【語(yǔ)法判斷】主句缺少謂語(yǔ)，主語(yǔ)是the plane，應(yīng)該選擇動(dòng)詞的第三人稱單數(shù)。符合條件的動(dòng)詞有experiences(經(jīng)歷)、stretches(延展到)
【語(yǔ)意判斷】這個(gè)飛機(jī)____總長(zhǎng)度54米，所以應(yīng)該選stretches，延展到。
30. C)eventually
【語(yǔ)法判斷】where引導(dǎo)的從句有完整的主謂賓結(jié)構(gòu)，空格處應(yīng)該填寫副詞。符合條件的副詞有eventually(最后，終于)、intentionally(故意地、有意地)。
【語(yǔ)意判斷】在這個(gè)地方，潛水者將_______能夠探索機(jī)艙和….，因?yàn)槭窃陲w機(jī)沉下去以后，潛水者才能夠進(jìn)行探索，所以應(yīng)該選eventually，最終
31. F)exterior
【語(yǔ)法判斷】由plane’s可知此處為所有格，應(yīng)該填一個(gè)名詞。符合條件的名詞有experiences(經(jīng)驗(yàn))、exterior(外部)、investment(投資)、territory(領(lǐng)土)、victim(受害人)。
【語(yǔ)意判斷】潛水者最終可以探索機(jī)艙和飛機(jī)的_____，潛水者會(huì)探索飛機(jī)的內(nèi)部和外部，所以應(yīng)該選exterior，外部。
32. J)investment
【語(yǔ)法判斷】由that代詞可知，此處應(yīng)該填寫一個(gè)名詞。符合條件的`名詞有experiences(經(jīng)驗(yàn))、investment(投資)、territory(領(lǐng)土)、victim(受害人)。
【語(yǔ)意判斷】他們(投資者)希望通過(guò)旅游業(yè)看到在_____上的回報(bào)，又從前一句知道投資者在飛機(jī)上花了大量的金錢，所以應(yīng)該選擇investment，投資上的回報(bào)。
33. O)victim
【語(yǔ)法判斷】由定冠詞the和介詞of可知，此處應(yīng)該填寫一個(gè)名詞。符合條件的名詞有experiences(經(jīng)驗(yàn))、territory(領(lǐng)土)、victim(受害者)。
【語(yǔ)意判斷】土耳其這個(gè)國(guó)家是幾起致命的恐怖襲擊的______，由上文可知，土耳其的旅游業(yè)出現(xiàn)了下滑的趨勢(shì)，他們受到了恐怖襲擊的影響，所以應(yīng)該選victim，受害者。
34. I)intentionally
【語(yǔ)法判斷】sunk修飾aircraft表示被沉沒(méi)的飛機(jī)，此處可以填寫一個(gè)形容詞和sunk并列修飾aircraft，也可以是一個(gè)副詞修飾形容詞sunk。符合條件的形容詞有depressed(沮喪的)、revealing(透露真情的、有啟迪作用的);符合條件的副詞有intentionally(故意地、有意地)。
【語(yǔ)意判斷】A300是的______被沉沒(méi)的飛機(jī)，由上下文可知，這架飛機(jī)是被人為地沉沒(méi)到海底地，所以此處應(yīng)該選intentionally，故意被沉沒(méi)的飛機(jī)。
35. E)exploring
【語(yǔ)法判斷】and并聯(lián)連詞連接taking和填空部分，形式應(yīng)與taking保持一致，動(dòng)詞的現(xiàn)在分詞形式。符合條件的動(dòng)詞有exploring(探索)、revealing(揭露)。
【語(yǔ)意判斷】經(jīng)歷一場(chǎng)水下旅行和_______沉沒(méi)的A300內(nèi)部，由語(yǔ)意可知，應(yīng)該選擇exploring，探索內(nèi)部。
大學(xué)英語(yǔ)四級(jí)題閱讀題及答案 4
Questions 31 to 35 are based on the following passage:
"Welcome to the U.S.A.! Major credit cards are accepted!"
By the millions they are coming no longer the tired, the poor, the wretched masses longing for a better living. These are the wealthy. "We dont have a budget," says a biologist from Brazil, as she walks with two companions through New York Citys South Street." We just use our credit cards."
The US has long been one of the worlds most popular tourist destinations, but this year has been exceptional. First, there was the World Cup, which drew thousands from every corner of the globe; then came the weakening of the US dollar against major currencies. Now the US, still the worlds superpower, can also claim to be the worlds bargain basement(廉價(jià)商品部). Nobody undersells America these days on just about everything, from consumer electronics to fashion clothes to tennis rackets. Bottom retail prices anywhere from 30 % to 70% lower than those in Europe and Asia have attracted some 47 million visitors, who are expected to leave behind $ 79 billion in 1994. Thats up from $74 billion the year before.
True, not everyone comes just for bargains. There remains an undeniable fascination in the rest of the world with all things American, nourished by Hollywood films and US television series. But shopping the USA is proving irresistible. Every week thousands arrive with empty suitcases ready to be filled; some even rent an additional hotel room to hold their purchases. The buying binge(無(wú)節(jié)制)has become as important as watching Old Faithful Fountains erupt in Yellowstone Park or sunbathing on a beach in Florida.
The US has come at last to appreciate what other countries learned long ago: the pouring in of foreign tourists may not always be convenient, but it does put money in the bank. And with a trade deficit at about $130 billion and growing for the past 12 months, the US needs all the deposits it can get. Compared with American tourists abroad, visitors to the US stay longer and spend more money at each stop; an average of 12.2 night and $ 1624 a traveler versus the Americans four nights and $298.
31. From what the Brazilian biologist says, we know that tourists like her ____.
A) are reluctant to carry cash with them
B) simply don t care how much they spend
C) are not good at planning their expenditure
D) often spend more money than they can afford
32.The reason why 1994 was exceptional is that ____.
A) it saw an unusually large number of tourists to the US
B) it witnessed a drop in the number of tourists to the US
C) tourism was hardly affected by the weakening of the US dollar that year
D) Tourists came to the US for sightseeing rather than for bargains that year
33.By saying " nobody undersells America" (Underlined), the author means that ____.A) no other country underestimates the competitiveness of American productsB) nobody expects the Americans to cut the prices of their commodities
C) nobody restrains the selling of American goods
D) no other country sells at a lower price than America
34.Why does the author assert that all things American are fascinating to foreigners?A) Because they have gained much publicity through the American media
B) Because they represent the world s latest fashions
C) Because they embody the most sophisticated technology
D)Because they are available at all tourist destinations
35.From the passage we can conclude that the US has come to realize____.
A) the weakening of the US dollar can result in trade deficits
B) the lower the retail prices, the greater in profits
C) tourism can make great contributions to its economy
D) visitors to the US are wealthier than US tourists abroad
【參考答案】
31. 【答案】B�！咀g文】從巴西生物學(xué)家所說(shuō)的話，我們得知像她這樣的游客完全不介意他們花多少錢�！驹囶}分析】細(xì)節(jié)推理型，通過(guò)對(duì)某一段話的理解，并進(jìn)行總結(jié)和概括�！驹敿�(xì)解答】原文第二段提到現(xiàn)在涌入的是富人( These are the wealthy),所以當(dāng)她說(shuō)"We don t have a budget, we just use our credit cards"是指花錢不用做預(yù)算，想買就用信用卡，其暗含的意思就是選項(xiàng)B所表達(dá)的信息。故本題的正確答案是B。
32.【答案】A�！咀g文】1994年特別突出的原因是在那一年到美國(guó)的`游客數(shù)目非常大�！驹囶}分析】細(xì)節(jié)推理型，通過(guò)對(duì)某一段話的理解，并進(jìn)行總結(jié)和概括�！驹敿�(xì)解答】原文第三段說(shuō)明美國(guó)早已成為旅游勝地，1994年不同于往年，其原因是世界杯吸引了大批游客，美元下跌使在美國(guó)購(gòu)物便宜到了極點(diǎn)，這更吸引了大量的游客。而這一觀點(diǎn)恰好與選項(xiàng)A相一致。這句話中的動(dòng)詞saw的意思是"目睹了"之意。故本題的正確答案是A。
33.【答案】D。【譯文】在文章第三段中，作者說(shuō)了這樣一句話：nobody undersells America，他所暗含的意思是沒(méi)有哪個(gè)國(guó)家的物價(jià)水平比美國(guó)更低。【試題分析】細(xì)節(jié)推理型，通過(guò)對(duì)某一段話的理解，并進(jìn)行總結(jié)和概括�！驹敿�(xì)解答】在文章的第三段中Now the US, still the worlds superpower, can also claim to be the worlds bargain basement的中文意思是：美國(guó)現(xiàn)在仍是世界上的超級(jí)大國(guó)，也可以聲稱是世界上的廉價(jià)商品部。所以，nobody undersells America這句話所暗含的意思是：沒(méi)有哪個(gè)國(guó)家的物價(jià)水平比美國(guó)更低。在后文中，作者又提到了美國(guó)的零售底價(jià)比歐洲低30%，比亞洲低70%。這一事實(shí)更證明了這一觀點(diǎn)的正確性。故本題的正確答案是D。
34.【答案】A�！咀g文】作者為什么得出結(jié)論：所有的美國(guó)貨對(duì)外國(guó)人來(lái)說(shuō)都是非常具有吸引力的?【試題分析】細(xì)節(jié)推理型，通過(guò)對(duì)某一段話的理解，并進(jìn)行總結(jié)和概括�！驹敿�(xì)解答】文章的第四段第二句話There remains an undeniable fascination in the rest of the world with all things American, nourished by Hollywood films and US television series. But shopping the USA is proving irresistible.說(shuō)明媒體使人們對(duì)美國(guó)貨產(chǎn)生迷戀。在四個(gè)選項(xiàng)中，只有選項(xiàng)A與這句話在觀點(diǎn)上是一致的。故本題的正確答案是A。
35.【答案】C�！咀g文】讀完這篇文章，我們可以得出結(jié)論：美國(guó)已經(jīng)意識(shí)到旅游業(yè)為美國(guó)經(jīng)濟(jì)的發(fā)展做出非常重大的貢獻(xiàn)。【試題分析】主題歸納型，通過(guò)總結(jié)和歸納，進(jìn)而得出文章的主題�！驹敿�(xì)解答】通讀完全文后，我們可以得知：大批外國(guó)游客涌入美國(guó)，并給美國(guó)政府帶來(lái)了大筆收入。另外，文章第五段強(qiáng)調(diào)美國(guó)終于開始重視外國(guó)游客大量涌入給美國(guó)經(jīng)濟(jì)帶來(lái)的巨大貢獻(xiàn)。綜合以上兩點(diǎn)，我們可以得知選項(xiàng)C正是作者的觀點(diǎn)和結(jié)論。故本題的正確答案是C。
大學(xué)英語(yǔ)四級(jí)題閱讀題及答案 5
The future population will be older than today, and this in turn will change the patterns of social demands. However, Mexico will still be far from the "aging societies" that will most likely prevail (占優(yōu)勢(shì) ) in the industrialized countries. In less than 25 years, the country will have to add almost as much infrastructure as it has already built up to now, simply to maintain services and production at the current levels. This will be a tremendous challenge, although a similar one was faced successfully in the recent past, when available infrastructure was doubled in two decades or so. It is no wonder that much has been said about the need to reduce or preferably halt Mexicos population control which is taken for granted as both good and necessary. It has also gained supporters in the developing world, and Mexico is no exception. But the arguments about population are complicated, as the following discussion illustrates.
Even if Mexicos population reaches 125 million by the year 2010, its population density is still smaller than the 1985 population density of some 50 countries. By international standards Mexico will still not be overpopulated by the year 2010. If wealth is generated by people, the more individuals there are, the greater the wealth that potentially could be generated. Why should Mexico control its population at density levels below those of the richer countries if more population represents the possibility of generating more wealth?
On the other hand, it is often pointed out that once sustainability(支撐力) limits are near or are reached, there are decreasing productivity gains (or,perhaps more accurately, increasing productive losses) , and people become a cost rather than an asset. If we assume that there are sustainability limits and that we are close to reaching these limits at a world level, then it is appropriate to check population growth.
21. According to the passage, the population argument is focused on_______.
A. whether more people are a property or a cost
B. whether Mexico should control its population growth or not
C. whether the density of population in Mexico is large or small
D. what the standard international sustainability limit is
22. Which of the following is TRUE according to the first paragraph?
A. Mexico has stepped into an aging society.
B. It is not necessary for Mexico to control its population.
C. Mexico population is younger than that of developed countries.
D. It is not necessary for Mexico to develop its infrastructure.
23. By "infrastructure"(Para. 2) the author means_______.
A. buildings
B. the basic framework of a country, such as schools, services, etc.
C. social demands
D. services and production
24. It may be inferred from the 3rd paragraph that_______.
A. it isnt necessary for Mexico to control its population growth
B. population is likely to grow at a slower pace than in the past
C. the more people there are, the greater the wealth people could generate
D. Mexico should control its population growth because she belongs to the developing countries
25. To check population growth is necessary when_______.
A. there are decreasing productivity gains
B. there are increasing productivity losses
C. we are close to reaching the sustainability limits at a world level
D. people become a cost
答案：
21. B 22. C 23. B 24. A 25. C
大學(xué)英語(yǔ)四級(jí)題閱讀題及答案 6
Not all sounds made by animals serve as language, and we have only to turn to that extraordinary discovery of echolocation (回聲定位) in bats to see a case in which the voice plays a strictly practical role.
To get a full appreciation of what this means we must turn first to some recent human inventions. Everyoneknows that if he shouts near a wall or a mountainside, an echo will come back. The further off this solid obstacle, the longer time it will take for the return of the echo. A sound made by tapping on the main body of a ship will be reflected from the sea bottom, and by measuring the time interval between the taps andthe receipt of the echoes the depth of the sea at that point can be calculated. So was born the echo-sounding equipment, now in general use in ships. Every solid object will reflect a sound, varying according to the size and nature of the object. A shoal of fish will do this. So it is a comparatively simple step fromlocating the sea bottom to locating a shoal of fish. With experience, and with improved equipment, it is now possible not only to locate fish but to tell if it is herring, cod, or other well-known fish, by the pattern of its echo.
A few years ago it was found that certain bats emit squeaks (吱吱聲) and by receiving ’he echoes they could locate and steer clear of obstacles--or locate flying insects on which they feed. This echolocation in bats is often compared with radar, the principle of which is similar.
練習(xí)題：
Choose correct answers to the question:
1.The main purpose of this passage is to ______.
A. describe that animals can make different sounds
B. prove that animals’ voices can play practical roles
C. inspire the readers to make more inventions
D. startle the readers with some shocking facts
2. The discovery of echolocation may help with all of the following EXCEPT
A. measuring the depth of the sea
B. distinguishing different kinds of fish
C. improving the functions of radar
D. varying the size and nature of an object
3. By saying "A shoal of fish will do this"(Lines 6-7, Para. 2), the author means ________.
A. only one special kind of fish can reflect sounds
B. only one special kind of fish can be used to help locate a ship
C. a large group of fish can reflect sounds
D. a large group of fish can be used to help locate a ship
4. As it is discussed in the passage, the squeaks of bats can be functionally compared with ________.
A. human languages
B. a mountainside
C. a shoal of fish
D. taps on a ship
5. Which of the following statements can be inferred from the passage?
A. Animals are more intelligent than humans.
B. Humans are more intelligent than animals.
C. Animals are often compared with human inventions.
D. Humans are often inspired by animals.
答案解析
1.[B] 主旨大意題。文章第1段就點(diǎn)明主題，明確指出以蝙蝠為例，動(dòng)物發(fā)出的聲音有實(shí)際作用，只有B可以概括文章的這個(gè)寫作目的。
2.[C] 事實(shí)細(xì)節(jié)題。本題考査列舉處，可用排除法解答。A、B、C在文中都有相關(guān)提及。D利用第2段中的varying制造干擾。在原文中，指的是回聲因障礙物的不同而不同，而D偷換概念、曲解文意，D中的.varying為及物動(dòng)詞，意為“改變”,顯然不可能是回聲定位的發(fā)現(xiàn)帶來(lái)的功效。
3.[C] 詞義推斷題。本題考查對(duì)shoal的詞義推測(cè)及代詞this的理解。依據(jù)第2段最后幾句話,可推測(cè)出a shoal of fish指的是“海里的一群魚”;this則是指上一句提到的“任何固體都可以反射聲音”，因此這句話表明一大群魚就能像一個(gè)固體一樣反射聲音。
4.[D] 推理判斷題。根據(jù)最后一段可知，蝙蝠發(fā)出吱吱聲可以探測(cè)障礙物的距離，而第2段也指出輕敲船體可測(cè)知海底的距離，因此在功能上,D與蝙蝠的吱吱聲相同。A中的human languages在文中未提到;B和C在文中各自的例子中充當(dāng)?shù)亩际钦系K物的角色，因此都不正確。
5.[D] 推理判斷題。文章先說(shuō)動(dòng)物的回聲定位功能,再說(shuō)到回聲定位探測(cè)儀的發(fā)明,由此可見，是動(dòng)物的某些能力啟發(fā)了人類的創(chuàng)造，因此只有D可從文中推測(cè)。文章并沒(méi)有從智力方面比較人類和動(dòng)物，因此可以排除A 和B;盡管文章說(shuō)到了蝙蝠和雷達(dá)的原理相似，但是C中的often一詞無(wú)據(jù)可循，且C的說(shuō)法浮于表面，沒(méi)有說(shuō)到重點(diǎn)，故排除。
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