1、公共英语四级-91 及答案解析(总分：100.00，做题时间：90 分钟)一、BSection Liste(总题数：1，分数：5.00)BPart A/BIFor Questions 15, you will hear a passage about the Kennedys. While you listen, fill out the table with the information you have heard. Some of the information has been given to you in the table. Write Bonly 1 word/B in ea
2、ch numbered box. You will hear the recording twice. You now have 25 seconds to read the table below./IA Passage about the kennedysthe boy who had an accident 1.the event in which the eldest brother was killed 2.the year in which John was killed 3.the year in which Robert was killed 4.the thing the b
3、rothers fight for 5.（分数：5.00）(1).（分数：1.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_二、BPart B/B(总题数：1，分数：5.00)（分数：5.00）(1).Where does students stress come from sometimes?（分数：1.00）填空项 1:_(2).Parents didnt realize that the competition is_.（分数：1.00）填空项 1:_(3).Besides cutting off funds, parents also threaten t
4、o take their child_.（分数：1.00）填空项 1:_(4).What did parents used to see on high school report cards?（分数：1.00）填空项 1:_(5).At their kindest, what will they do when they see their childrens lower grades?（分数：1.00）填空项 1:_三、BPart C/B(总题数：3，分数：10.00)IQuestions 1113 are based on the following dialogue. You now
5、have 15 seconds to read Questions 1113./I（分数：3.00）(1).Whats the womans main purpose of visiting Quebec?（分数：1.00）A.To attend a wedding in Montreal.B.To do some sightseeing.C.To travel abroad.D.To visit her relatives.(2).What does the man advise the woman to do before the trip?（分数：1.00）A.Improve her E
6、nglish.B.Brush up on her French.C.Prepare more things.D.Prepare her passport.(3).What does the man say about Quebec City?（分数：1.00）A.It is too hot.B.It is a new city.C.It has many historical buildings.D.It is boring.IQuestions 1416 are based on the following text about cold. You now have 15 seconds t
7、o read Questions 1416./I（分数：3.00）(1).According to the passage, why havent the scientists find a cure for the common cold?（分数：1.00）A.There are too many kinds of cold viruses for them to identify.B.There is no cure.C.They are too busy.D.The virus is too small.(2).What does the speaker say about the sy
8、mptoms of the common cold?（分数：1.00）A.Blood becomes slow.B.Temperatures decreases.C.They show our body is fighting the virus.D.Have a headache.(3).What do some scientists say about taking medicines for the common cold according to the passage?（分数：1.00）A.It is good for people.B.It actually does more h
9、arm than good.C.It can help people keep healthy.D.It can give them more energy.IQuestions 1720 are based on the following text about a firefighter. You now have 20 seconds to read Questions 1720./I（分数：4.00）(1).What happened to Herbert ten years ago?（分数：1.00）A.His brain was damaged.B.He put out the f
10、ire.C.He saved many people.D.He damaged someone.(2).What surprised Donald Herberts family and doctors one Saturday?（分数：1.00）A.He had slept for ten years.B.His brain was left damaged.C.He started to speak after ten years.D.He didnt remember his wife.(3).How long did Herbert remain unconscious?（分数：1.0
11、0）A.Two and a half months.B.Fifty years.C.Thirty years.D.Ten years.(4).How did Herberts family react to the public attention?（分数：1.00）A.They are very enthusiastic.B.They are very active.C.They welcome their attention.D.They dont want to disclose his condition.四、BSection Use o(总题数：1，分数：20.00)Everyone
12、 U(21) /U of the President of the US U(22) /U the most powerful man in U(23) /U But when the representatives of the 13 former British colonies U(24) /U to draw up the constitution of the new country U(25) /U 1788, U(26) /U of them were not sure whether they U(27) /U to have a President at all. There
13、 were even U(28) /U who U(29) /U a king, U(30) /U their successful war against the British king, George . The decision was in doubt U(31) /U the last moment. One group wanted U(32) /U for life, while U(33) /U suggested that U(34) /U not be a President, because a Committee would govern the country be
14、tter; a third group U(35) /U a President U(36) /U term of office would last seven years but who could not stand for reelection, because they were afraid he would spend his time U(37) /U votes at the next election. In the end they chose George Washington as President for four years and let him U(38)
15、/U for reelection because they trusted him. But they were U(39) /U to make rules in case a future President U(40) /U badly and these rules were used to get rid of President Nixon two hundreds years later（分数：20.00）A.use to thinkB.thinkC.thinksD.uses to thinkA.to beB.beingC.likeD.asA.western worldB.th
16、e western worldC.accidentD.the accidentA.foundB.metC.encounteredD.put togetherA.atB.byC.onD.inA.a numberB.a great dealC.a large amountD.the mostA.shouldB.wouldC.neededD.mustA.fewB.a fewC.littleD.a littleA.had preferredB.would have preferredC.should have preferredD.were preferringA.althoughB.howeverC
17、.neverthelessD.in spite ofA.untilB.as far asC.so far asD.byA.that the President was electedB.that the President would be electedC.to elect the PresidentD.to be elected the PresidentA.anotherB.otherC.the otherD.some otherA.it shouldB.it wouldC.there shouldD.there wouldA.would have likedB.would rather
18、C.would likeD.would be likingA.thatsB.whoseC.whichD.of whichA.looking forB.to look forC.to look atD.looking atA.standB.to standC.be standingD.that he stoodA.so carefulB.too carefulC.careful enoughD.enoughcarefulA.would carryB.carriedC.would behaveD.behaved五、BSection Readi(总题数：4，分数：20.00)BText 1/BEl
19、Nino is the term used for the period when sea surface temperatures are above normal off the South American coast along the equatorial Pacific, sometimes called the Earths heartbeat, and is a dramatic but mysterious climate system that periodically rages across the Pacific.El Nino means “the little b
20、oy“ or “the Christ child“ in Spanish, and is so called because its warm current is felt along coastal Peru and Ecuador around Christmas. But the local warming is just part of an intricate set of changes in the ocean and atmosphere across the tropical Pacific, which covers a third of the Earths circu
21、mference. Its intensity is such that it affects temperatures, storm tracks and rainfall around the world.Droughts in Africa and Australia tropical storms in the Pacific, torrential rains along the Californian coast and the Peruvian deserts have all been ascribed to the whim of El Nino.This at least
22、is the theory, and it has worked pretty well over the past century, with El Nino occurring about every three to five years and La Nina in between. But there have been some baffling developments in recent years. For one thing, El Nino has returned three times in the past four years. For another, sinc
23、e 1976 El Nino has dominated relative to the cooler phase (La Nina). There has been only one significant La Nina, but five El Ninos, including an extremely severe one in 19821983 that caused damage costing 8 billion dollars. Moreover a huge pool of warm water has settled down near the dateline in th
24、e central Pacific.Yet it is important to understand the changes if scientists are to be able to forecast the climatic effects of El Ninos with any degree of accuracy. This is not just an academic task accurate forecasts can spell out feast or famine in many tropical countries around the world. Forec
25、asting efforts have focused on El Nino, whose effects are generally more severe than those of La Nina.A worrying possibility is that the changes maybe due to greenhouse warming. If so, the recent fluctuations may be an early glimpse of worse things to come.（分数：5.00）(1).When does El Nino happen?（分数：1
26、.00）A.The water temperature is above normal.B.Sea surface temperatures are higher than usual.C.The water temperature is below normal.D.Sea surface temperatures are lower than normal.(2).Which of the following is NOT caused by El Nino?（分数：1.00）A.Droughts in Africa.B.Tropical storms in Pacific.C.Torre
27、ntial rains along the Californian coast.D.The American deserts.(3).Which of the following statements is NOT meant by the author, according to the fourth paragraph?（分数：1.00）A.El Nino occurs periodically.B.In recent years El Nino happened more frequently than before.C.El Nino caused a lot of damages.D
28、.El Nino doesnt affect the central Pacific.(4).What can be the possible cause of the changes of El Nino?（分数：1.00）A.Greenhouse warming.B.Inaccurate weather forecast.C.Famine.D.Accurate forecasts.(5).Whats the best title for this passage?（分数：1.00）A.El NinoB.How Does El Nino HappenC.What Is El NinoD.Th
29、e Effects of El NinoBText 2/BThe “standard of living“ of any country means the average persons share of the goods and services which the country produces. A countrys standard of living, therefore, depends first and foremost on its capacity to produce wealth. “Wealth“ in this sense is not money, for
30、we do not live on money but on things that money can buy: “goods“ such as food and clothing, and “services“ such as transport and entertainment.A countrys capacity to produce wealth depends upon many factors, most of which have an effect on one another. Wealth depends to a great extent upon a county
31、s natural resources, such as coal, gold, and other minerals, water supply and so on. Some regions of the world are well supplied with coal and minerals, and have a fertile soil and a favorable climate; other regions possess perhaps only one of these things, and some regions possess none of them. The
32、 USA is one of the wealthiest regions of the world because she had vast natural resources within her borders, her soil is fertile, and her climate is varied. The Sahara Desert, on the other hand, is one of the least wealthy.Next to natural resources comes the ability to turn them to use. China is pe
33、rhaps as well off as the USA in natural resources, but suffered for many years from civil and external wars, and for this and other reasons was unable to develop her resources. Sound political conditions, and freedom from foreign invasion, enable a country to develop its natural resources peacefully
34、 and steadily, and to produce more wealth than another country equally well served by nature but less well ordered.Another important factor is the technical efficiency of a countrys people. Old countries that have, through many centuries, trained up numerous skilled craftsmen and technicians are bet
35、ter placed to produce wealth than countries whose workers are largely unskilled. Wealth also produces wealth. As a country becomes wealthier, its people have a large margin for saving, and can put their savings into factories and machines which will help workers to turn out more goods in their worki
36、ng day.（分数：5.00）(1).A countrys wealth depends upon_.（分数：1.00）A.its standard of livingB.its moneyC.its ability to provide goods and servicesD.its ability to provide transport and entertainment(2).The word “foremost“ in Paragraph 1 means_.（分数：1.00）A.most importantlyB.firstlyC.largelyD.for the most par
37、t(3).The main idea of the second paragraph is that_.（分数：1.00）A.a countrys wealth depends on many factorsB.the USA is one of the wealthiest countries in the worldC.the Sahara Desert is a very poor regionD.natural resources are an important factor in the wealth or poverty of a country(4).The word “civ
38、il“ refers to wars that are_.（分数：1.00）A.long-lastingB.fought between one part of a country and anotherC.short but frequentD.carried out according to the international law(5).Which of the following statements is NOT true according to the passage?（分数：1.00）A.Countries with numerous skilled craftsmen an
39、d technicians are more likely to produce wealth.B.People of a wealthy country are likely to have higher living standard.C.A country with rich natural resources is certainly wealthy.D.A countrys capacity to produce wealth is subject to many factors.BText 3/BWorldwide every day, we devour the energy e
40、quivalent of about 200 million barrels of oil. Most of the energy on earth comes from the sun. In fact enough energy from the sun hits the planets surface each minute to cover our needs for an entire year, we just need to find an efficient way to use it. So far the energy in oil has been cheaper and
41、 easier to get at. But as supplies dwindle, this will change, and we will need to cure our addiction to oil.Burning wood satisfied most energy needs until the steam-driven industrial revolution, when energy-dense coal became the fuel of choice. Coal is still used, mostly in power stations, to cover
42、one quarter of our energy needs, but its use has been declining since we started pumping up oil. Coal is the least efficient, unhealthiest and most environmentally damaging fossil fuel, but could make a comeback, as supplies are still plentiful; its reserves are five times larger than oils.Today pet
43、roleum, a mineral oil obtained from below the surface of the Earth and used to produce petrol, diesel oil and various other chemical substances, provides around 40% of the worlds energy needs, mostly fuelling automobiles. The US consumes a quarter of all oil, and generates a similar proportion of gr
44、eenhouse gas emissions.The majority of oil comes from the Middle East, which has half of known reserves. But other significant sources include Russia, North America, Norway, Venezuela and the North Sea. Alaskas Arctic National Wildlife Refuge could be a major new US source, to reduce reliance on for
45、eign imports.Most experts predict we will exhaust easily accessible reserves within 50 years, though opinions and estimates vary. We could fast reach an energy crisis in the next few decades, when demand exceeds supply. As conventional reserves become more difficult to access, others such as tar san
46、ds may be used instead. Petrol could also be obtained from coal.Since we started using fossil fuels ,we have released 400 billion tones of carbon, and burning the entire reserves could eventually raise world temperatures by 13. Among other horrors, this would result in the destruction of all rainfor
47、ests and tile inching of all Arctic ice.（分数：5.00）(1).“ we will need to cure our addiction to oil.“ Why does the author say so?（分数：1.00）A.Most of the energy on Earth comes from the Sun.B.Oil supply is increasing all the time.C.Demand for oil is increasing all tile time.D.Oil supply is decreasing.(2).
48、Which of the following statements is NOT meant by the author, according to the second paragraph?（分数：1.00）A.Wood wets the fuel of choice before coal.B.The use of coal is declining.C.Coal is the most environmentally unfriendly fuel next to oil.D.Coal reserves are plentiful and will be likely to become the major fuel of choice.(3).Which country is the biggest consumer of petroleum?（分数：1.00）A.The
