填空题Most people would not object to living a few years longer than normal, as long as it meant they could live those years in good health. Sadly, the only proven way to extend the lifespan of an animal in this way is to reduce its calorie intake. Studies going back to the 1930s have shown that a considerable reduction in consumption ( about 50% ) can extend the lifespan of everything from dogs to nematode worms by between 30% and 70%. Although humans are neither dogs nor worms, a few people are willing to give the calorie-restricted diet a try in the hope that it might work for them, too. But not many—as the old joke has it, give up the things you enjoy and you may not live longer, but it will sure seem as if you did. Now, though, work done by Marc Hellerstein and his colleagues at the University of California, Berkeley, suggests that it may be possible to have, as it were, your cake and eat it too. Or, at least, to eat 95% of it. Their study, to be published in the American Journal of Physiology—Endocrinology and Metabolism, suggests that significant gains in longevity might be made by a mere 5% reduction in calorie intake. The study was done on mice rather than people. But the ubiquity of previous calorie-restriction results suggests the same outcome might well occur in other species, possibly including humans. However, you would have to fast on alternate days.(41)______ Cancer is the uncontrolled growth of cells. For a cancer to develop efficiently, it needs multiple mutations to accumulate in the DNA of the cell that becomes the tumor's ancestor.(42)______ A slower rate of cell division thus results in a slower accumulation of cancer-causing mutations.(43)______ Heavy water is heavy because the hydrogen in it weighs twice as much as ordinary hydrogen (it has a proton and a neutron in its nucleus, instead of just a proton). Chemically, however, it behaves like its lighter relative. This means, among other things, that it gets incorporated into DNA as that molecule doubles in quantity during cell division.(44)______ Dr Hellerstein first established how much mice eat if allowed to feed as much as they want. Then he set up a group of mice that were allowed to eat only 95% of that amount. In both cases, he used the heavy-water method to monitor cell division. The upshot was that the rate of division in the calorie-restricted mice was 37% lower than that in those mice that could eat as much as they wanted--which could have a significant effect on the accumulation of cancer-causing mutations.(45)______[A] To stop this happening, cells have DNA-repair mechanisms. But if a cell divides before the damage is repaired, the chance of a successful repair is significantly reduced.[B] Bingeing and starving is how many animals tend to feed in the wild. The uncertain food supply means they regularly go through cycles of too much and too little food ( it also means that they are often restricted to eating less than they could manage ff food were omnipresent).[C] But calorie-reduction is not all the mice had to endure. They were, in addition, fed only on alternate days: bingeing one day and starving the next. So, whether modern man and woman, constantly surrounded by food and advertisements for food, would really be able to forgo eating every other day is debatable.[D] Why caloric restriction extends the lifespan of any animal is unclear, but much of the smart money backs the idea that it slows down cell division by denying cells the resources they need to grow and proliferate. One consequence of that slow-down would be to hamper the development of cancerous tumors.[E] So, by putting heavy water in the diets of their mice, the researchers were able to measure how much DNA in the tissues of those animals had been made since the start of the experiment (and by inference how much cell division had taken place), by the simple expedient of extracting the DNA and weighing it.[F] The second reason, according to Elaine Hsieh, one of Dr Hellerstein's colleagues, is that cutting just a few calories overall, but feeding intermittently, may be a more feasible eating pattern for some people to maintain than making small reductions each and every day.[G] At least, that is the theory. Until now, though, no one has tested whether reduced calorie intake actually does result in slower cell division. Dr Hellerstein and his team were able to do so using heavy water as a chemical "marker" of the process.

填空题`

填空题At the end of the fifteenth century, celestial navigation was just being developed in Europe, primarily by the Portuguese. Prior to the development of celestial navigation, sailors navigated by "deduced" (or "dead") reckoning, hereafter called DR. This was the method used by Columbus and most other sailors of his era. In DR, the navigator finds his position by measuring the course and distance he has sailed from some known point. Starting from a known point, such as a port, the navigator measures out his course and distance from that point on a chart, pricking the chart with a pin to mark the new position. Each day' s ending position would be the starting point for the next day's course-and-distance measurement. 41._______________________. The ship's speed was measured by throwing a piece of flotsam over the side of the ship. There were two marks on the ship's rail a measured distance apart. When the flotsam passed the forward mark, the pilot would start a quick chant, and when it passed the aft mark, the pilot would stop chanting. The pilot would note the last syllable reached in the chant, and he had a mnemonic that would convert that syllable into a speed in miles per hour. This method would not work when the ship was moving very slowly, since the chant would nm to the end before the flotsam had reached the aft mark. 42.____________________. Columbus was the first sailor (that we know of) who kept a detailed log of his voyages, but only the log of the first voyage survives in any detail. It is by these records that we know how Columbus navigated, and how we know that he was primarily a DR navigator. 43.___________________. If Columbus had been a celestial navigator, we would expect to see continuous records of celestial observations; but Columbus's log does not show such records during either of the transatlantic portions of the first voyage. It has been supposed by some scholars that Columbus was a celestial navigator anyway, and was using unrecorded celestial checks on his latitude as he sailed west on his first voyage. 44.______________________ In other words, if Columbus were a celestial navigator, we would expect to see a sense of small intermittent course corrections in order to stay at a celestially determined latitude. These corrections should occur about every three or four days, perhaps more often. But that is not what the log shows. 45.________________. Only three times does Columbus depart from this course: once because of contrary winds, and twice to chase false signs of land southwest. In none of these cases does he show any desire to return to a celestially-determined latitude . This argument is a killer for the celestial hypothesis. [A] Since DR is dependent upon continuous measurements of course and distance sailed, we should expect that any log kept by a DR navigator would have these records; and this is exactly what Columbus's log looks like. [B] On his return voyage in 1493, Columbus started from Samaria Bay on the north coast of Hispaniola, and he made landfall at Santa Maria Island in the Azores. We know his entire DR courses and distances between these two points, since they're recorded in his log. [C] In order for this method to work, the navigator needs a way to measure his course, and a way to measure the distance sailed. Course was measured by a magnetic compass. Distance was determined by a time and speed calculation: the navigator multiplied the speed of the vessel (in miles per hour) by the time traveled to get the distance. [D] On the first voyage westbound, Columbus sticks doggedly to his magnetic westward course for weeks at a time. [E] Could Columbus has corrected his compasses by checking them against the stars and thus avoids the need for course corrections? This would have been possible in theory, but we know that Columbus could not have actually done this. [F] Speed (and distance) was measured every hour. The officer of the watch would keep track of the speed and course sailed every hour by using a peg-board with holes radiating from the center along every point of the compass. The peg was moved from the center along the course traveled, for the distance made during that hour. After four hours, another peg was used to represent the distance made good in leagues during the whole watch. At the end of the day, the total distance and course for the day was transferred to the chart. [G] In that case, as magnetic variation pulled his course southward from true west, he would have noticed the discrepancy from his celestial observations, and he would have corrected it.

填空题When we compare men with animals, we must remember that a man is also an animal. But in making this comparison, it is sometimes more convenient to refer to the rest of the animal kingdom as "animals". (1) . Many animals are intelligent in the sense that they can explore their surroundings or acquire new skills by learning from their parents. Animal organisms have organs whose physical power exceeds the power of men. The bodies of men have no wings and cannot fly. Men cannot imitate fish and spend long periods under water unless they carry breathing apparatus with them. (2) . But it is very uncommon for animals to go mad or destroy their own kind. Animals, left to themselves, do not disturb the balance of nature. They do not turn grassland into desert or make water undrinkable by filling whole lakes and rivers with waste materials. Compared with most other organisms—if we see him as a part of nature—man is wasteful and destructive. Though he is more intelligent than animals, he often uses his intelligence for strange purposes. (3) . This power is possessed by the rich businessman in Chicago and the poor, primitive Bushman of the Kalahari Desert in Africa. It may indeed show itself more obviously in the Bushman, whose environment does not provide him with security and whose entire food supply is acquired by facing new situations. It is a power which can be wasted or misused or be weakened through neglect. But it is a power which belongs to every human being. (4) . Language gives depth to human communities in time. It enables one generation to hand on its experience to another, by means of stories, which are the origin of human history. It is only human beings who recognize a past and future, and who feel that they stand at a certain point in the development of their community. (5) . This brings us to another aspect of human intelligence. Man is more adaptable than animals, but in the ages of civilization he has used this power in a special way. A few communities, like the African Bushman, still manage to survive in a primitive way. But other men wish to make their future more secure and try to find a way of doing this, which is typical of civilized communities. A. We call this capacity intelligence. Its chief instrument or weapon is human language, a system of symbols (spoken or written) which enables men to communicate information and purpose, and see one situation in terms of another. The ability to use symbols is not possessed by animals, and it is a major aspect of human intelligence. B. Like animals, men are adapted to a certain environment. They require food and water; they can digest only certain kinds of food. They require warmth; they can survive only within certain limits of temperature. C. Man's sense of future leads him to provide for the future. He accumulates food, clothes, useful objects, raw materials, buildings, information and in modern times he accumulates money—the means of exchange and therefore an important means of power over other men. D. Different from an animal, man is able to convert a natural environment into a human, social environment—an environment which represents the accumulated labor of many generations. E. We cannot say that men are superior to animals. But they differ from animals in several important ways. And all these differences are really aspects of one and the same difference. This central difference is man's unusual mental flexibility, his ability to meet a new situation in a new way and his capacity to learn from his experience and the experience of others. F. It is very doubtful whether men are "superior" to animals. It is true that their responses are more complex. G. Man is concerned about his living environment. The discoveries of science and the inventions of technology have produced an environment which is almost equivalent to a second, outer shell of body and is adapted not only to local conditions but also to a very wide range of variations in climate, altitude and other features of the geographical surroundings.

填空题[A] How to understand generosity[B] One way is to stick to your words[C] The true essence of generosity[D] Being generous needs thoughts[E] Never use generosity as a disguise[F] Small things reflect more The word "gift" has got dangerously devalued of late. Salesmen use so-called free gifts as bait and publicists use them as bribes; the wealthy can make "gifts" to their children, or to charities, with no more noble motive than saving tax. 41. ________________________ We need to claim the word back this Christmas. We also need to claim back the word "generous": which too often gets used in the senses of over-large portions of food, hotel towels, the size of sheets, or women spilling out of their dresses. For generosity--the ability to make real gifts with modesty and love, expecting nothing back--is one of the things which most make us human. You do not find pigs or lions giving ,one another thoughtful little presents, do you? Monkeys, apparently, offer one another fleas at times, but not in any provable spirit of kindliness. We should honor generosity more than we do. 42. __________________ Perhaps it has become suspect because of the tales of over-the-top generosity sometimes told in gossip about the very rich. The late Christina Onassis giving her daughter a personal zoo and a flock of sheep with their own shepherd, for instance ; assorted tycoons flying their guests halfway round the world for birthday parties where there is an emerald bracelet or cufflinks on every place-setting. In this context, generosity has come to mean that you hurl money around like a drunken sailor. And there is always the suspicion that, like the sailor, you are doing it just to prove that you can afford it. That is not giving: that is showing off. 43. __________________ But the real thing, when you meet it, is magical, and as a quality it belongs equally to rich and poor. Sometimes the poor--like the widow in the Bible who gave her mite--are best at it. Travelers in remote parts, from Poland to Peru, come home with stories of bread, shelter, even beds shared without question with the stranger on the peasant principle that "A guest in the house is God in the house". Nearer home, I loved the stories collected in memory of Katie Sullivan, the 23-year-old mental home care; assistant who was murdered last year. Particularly the one about the day she was walking to the pub, and lagged behind, and her student friends caught a glimpse of her emptying her whole purse into a tramp's hands when she thought they weren't looking. Later in the pub they teased her about not drinking, trying to make her admit what she had done; but she steadfastly pretended she didn't want a drink. 44. __________________ Tact is the key to real generosity: tact, and real thought for the person you are giving the present to. You can buy anyone a picture by a fashionable and expensive artist, if you can afford it; but it might be kinder to spend a tenth of the amount--and a bit of trouble on getting the framed original of a cartoon you know has cheered them up at a bad time. Anyone can buy a man a gold watch; but it takes a generous wife to do what one lately did, and track down an antique gold strap which precisely fits the old one he inherited from his beloved father. 45. __________________ In the Agatha Christie novel The Hollow, Henrietta displays remarkable kindness towards a shy unintellectual woman who isn't fitting in to a sparkling house party. Greta is wearing a dreadful cardigan she knitted herself; Henrietta not only praises it, but asks for the pattern. Having got the pattern, moreover, she heroically knits the dreadful thing and wears it herself next time she meets Greta. That is what I call follow-through. So is the wedding present a friend got from a broke but domestic sister-in-law : she promised to bake her a loaf of special, delicious whole meal bread every week for the first year of her marriage, and did so.

填空题At first glance, Microsoft's new search engine, Bing, doesn't look all that different from Google. There's a search bar across the top; a list of results down the middle of the page, flanked above and to the right by ads; and a smattering of categories to the left that will refine the listings. (41) ______. Microsoft describes the change as a focus on being a "decision engine" vs. a search engine. Jon Tinter, general manager of strategic partnerships in Microsoft's online audience business group, said the idea is to shift work from consumers to search engines, by answering more queries on the search results page, without having to click through to a result. (42) ______. Want to know if a flight's on time? Search the airline and flight number, and it'll answer that query atop the search results rather than pull up a list of sites and links that can tell you. Want to know where the UPS package you sent is? The search results pull up a field for you to enter a tracking number, rather than making you click through to UPS. com to do that. "Task and decision sessions are the focus of the new engine," said Mr. Tinter, as opposed to more simple navigational searches. The company is focusing on specific improvements in the areas of travel, shopping and products, local and health—all highly commercial areas. It has fully integrated into the search engine Farecast, a recently acquired travel search engine that "predicts" the likelihood of flight prices going up or down. (43) ______. The idea behind the changes is to get people to think differently about search, Mr. Tinter said. "Search is a habit. When you talk to people you hear a lot of stated satisfaction, but they don't behave like satisfied customers—and we think that's where the opportunity is," he said, citing statistics: (44) ______. But whether the changes look different enough to make consumers switch isn't clear. Perhaps that's why Microsoft is helping the service, which will be full deployed on June 3, with an $ 80 million to $100 million campaign from JWT (智威汤逊广告公司). (45) ______. Finding words like that these days "is getting harder and harder," said Paola Norambuena, senior director-head of verbal identity at Interbrand. She added that linguistically Bing had a lot of applications. "It's the sound of found. "[A] Branding shop Interbrand helped conceive the name Bing, which was chosen because it was memorable, easy to spell around the world and could be used as a verb, as Microsoft hopes to convert people from "Google it" to "Bing it. "[B] But for certain types of queries, the site trumps its competitors—specifically market leader Google.[C] Microsoft says that if its search engine brings more relevant results than Google or Yahoo!, then people will eventually migrate to the "best" product. That may not be true. Google has become a habit for more than two-thirds Of the people who use search engines in the U. S.[D] For example, search for "weather," and Bing will use your IP address to figure out your location and display a forecast at the top of the results.[E] Two-thirds of people say they're satisfied with search, but 15% of the time, search queries go abandoned without answer. "I can't think of another industry where you'd have 15% abandonment and two-thirds of customers saying they're satisfied. "[F] Creating a new search engine is a tremendous risk at this stage because it's remarkably expensive to build and market one that has any chance in the mass market.[G] And it has made improvements to its maps functions, Jetting users omit the navigational minutiae (细节) of local streets that often clutter other services' directions.

填空题Music comes in many forms; most countries have a style of their own. Poland has its polkas. Hungary has its czardas, Brazil is famous for the bossa nova, Caribbean countries for the merengue, and Argentina for the tango. The U. S. is known for jazz, a completely original type of music that has gained world-wide popularity. 1 . Brash, uninhibited, exciting, it has a modem sound. In the 1920"s jazz sounded like America. And so it does today. The origins of this music are as interesting as the music itself. Jazz was invented by American Negroes, or blacks, as they are called today, who were brought to the Southern states as slaves. 2 . A band often accompanied the procession. On the way to the cemetery the band played slow, solemn music suited to the occasion. But on the way home the mood changed. Spirits lifted. Everybody was happy. This music made everyone want to dance. It was an early form of jazz. But there were other influences, too. Music has always been important in Negro life. 3 . As these people settled into their new life in the plantations of the South, music retained its importance. In the fields, they made up work songs. Singing made the hard work go faster. And as the people were converted to Christianity, they composed lovely spirituals which have become a permanent part of American music. 4 In fact, there was hardly any activity or social event that could not be set to music. Weddings, births, christenings, funerals, picnics, parades—all had their musical accompaniment. After the American Civil War ( 1861-1865 ), the Negroes had gained their freedom and were ready for a new type of music, one that would preserve their musical traditions but be fast and happy to express their new-found freedom. They wanted something they could play as professional musicians for both black and white audiences. 5 . To be good, a musician had not only to remember his part but also to be able to invent new variations on the spur of the moment. A. Coming mainly from West Africa, the blacks who were brought to America already possessed a rich musical tradition. This music centered on religious ceremonies in which dancing, singing, clapping, and stamping to the beat of a drum were important forms of musical and rhythmic expression. B. Jazz was the answer. It combined themes from Negro work songs, spirituals and blues, set to a fast beat, with the musicians improvising as they went along, like the funeral marching bands. C. They were sold to plantation owners and forced to work long hours in the cotton and tobacco fields. This work was hard and life was short. When a Negro died his friends and relatives formed a Sprocession to carry the body to the cemetery. D. Jazz belongs to the people, but popular taste is changeable. Jazz had to keep up to date. Over the last half century it has changed many times in form, style, and tempo. Each change added something new. E. Another musical form which contributed to jazz was the blues. Blues songs always describe something sad—an unhappy love affair, a money problem, bad luck. To this day, the expression "feeling blue" means being sad or depressed. F. Death had removed one of their number, but the living were glad to be alive. The band played happy music, improvising on both the harmony and the melody of the tunes presented at the funeral. G. Jazz is America"s contribution to popular music. In contrast to classical music, which follows formal European traditions, jazz is spontaneous and free-form. It bubbles with energy, expressing the moods, interests, and emotions of the people.

填空题[A]Whatelsemightbewrong?Money?Germany'sspendingperpupilisabitbelowtheOECDaverage.ButsoisBritain'sandBritishpupils,tothesurpriseofmanythere,figuredinthetopteninallthetests.Theorganisationofschooling,then?Thatwouldbehardmjudge.Educationistheresponsibilityofthecountry's16distinctLander(states),andthevarioussystemstheyuserangefromthehighlyselectivetothefullycomprehensive.[B]Thereismoreofaclue,perhaps,tobefoundintheteachingforceitself.Germany'sschool-teachersarerelativelywellpaid,buttheyaretoofew:Germanyhasoneofthehighestpupil-teacherratiosamongOECDcountries,andinmanysubjectsanacuteshortageofteachers.Norarenewonesflockingin:two-fifthsofallteachersareover50.Oneinthreeadmitstofeeling"burntout”;nearlythree-quarterstakeearlyretirementonhealthgrounds.Inevitably,thequalityofteachingsuffers.[C]"Shocking","scandalous"and"catastrophic",politicians,parentsandeducatorshavewailedinunison.AndbeneaththeaveragefigureslieothersevenmoreshockingforGermany'sdeeplydemocraticburghers:evidenceofawidegap---oneofthewidestfoundbytheOECD'sresearchers--betweenGermany'shighest-performingstudentsanditslowest.Nearlyaquarterofits15-year-oldscouldnotreadandunderstandasimpletext.NotthatGermanycantakemuchcomfortfromtheachievementofitspupilsattheotherendofthescale.Only28%ofits15~year-oldsreachedthestudy'stoptwolevelsofreadingability,comparedwithhalfinFinland(whichwasrankedfirstoverall)andoverathirdinadozenothercountries.[D]Otherexplanationsabound.OneistheGermanzealforrotelearning,ratherthanforteachingchildrentothinkforthemselves.Anotheristheinadequatesupportgiventoweakerstudents,andtherequirementthatanypupilwhogetspoormarksinjusttwosubjectshastorepeatthewholeyear.Mostoftheother15-year-oldpupilsinvolvedintheOECDstudywereallinthesamegrade,havinggoneupwiththeircontemporariesasagroup;theGerman15-year-oldsspannedfourgrades,becausesomanyhadhadtorepeatayearormore.[E]Howcanthisbe?Whateverelse,Germanyisfamousforitsthoroughness.Itstechnicaleducationwasoneofthewondersofthe19thcentury,andlongafter.Whathasgonewrong?Almostasalarmingasthefigures,noonecantell.Blamingthelargenumberofstudentsofforeigndescent,whoaccountforoneintenpupilsinGermanschools,isnotanadequateexcuse:German-speakingAustria—yes,easy-goingAustria-cametenthinthereadingtests,althoughithasasimilarproportionofpupilsofforeigndescent.[F]SomepeopleblameGermany'scompressedschoolday,whichstartsat8amandusuallyendsat1.30pmor2pm.Manyparentswouldlikealaterstartandalongerday.SomeLanderaretryingoutall-dayschooling,butsofaronlyonasmallscale.Thebigneed,runsanotherargument,isformorefleekindergartenplaces,tohelp,inparticular,childrenfromnon-German-speakingimmigrantfamilies.Atthetopofthescale,ithaslongbeenarguedthatmorepupilsshouldbeencouragedtogoontohighereducation.Atpresent,only28%doso,comparedwithanOECDaverageof45%—andonly16%emerge(typically,somesixyearslater)withadegree.Sincethereportwaspublishedlastweek,Germanshavebeenrackingtheirbrainsoverallthesequestionsandmore.Nooneyethastheanswers.ButmanyGermansarealreadyconvincedthatnothingshortofa"culturalrevolution"throughouttheeducationsystemisnowrequired.[G]Theshameofit[finanewstudyofschoolpupils'performancebytheOECD,Germany,theworld'sthird-biggesteconomicpower,the"landofpoetsandthinkers",wasrankedamiserable21stoutof31countriesforthereadingabilitiesofits15-year-olds,20thinmathematicsand20thinscience.Acountrylongproud--andseeminglywithreason--ofitsrecordineducationhasbeenshownupasaDummkopf.Itsgovernmentandcitizensalikeareinatizzyofalarmandself-doubt.Order:

填空题{{B}}Directions:{{/B}} You are going to read a text about basic element in both speaking and writing, followed by a list of examples and explanations. Choose the best example or explanation from the list A-F for each numbered subheading (41-45). There is one extra example which you do not need to use. Mark your answers on ANSWER SHEET 1. There are many differences between communicating in written and spoken words—one to one or one to many. Because speaking is face to face and personal, it is much more direct than writing. Hand and body gestures, facial expressions, and vocal variety help greatly to support face-to-face communication. It is also reinforced by instant feedback from listeners in the form of smiles, frowns, applause, catcalls, clenched fists, and so on. An alert speaker who is sensitive to feedback can "shift gears" and adapt to changing circumstances. 41. The differences between talking and writing Writing, however, depends solely on words and punctuation to deliver the message. There are no gestures and no voice, and if there is any feedback, it takes time to reach the writer. 42. Why long sentences can be used in writing? Effective talking is aimed at people's minds and hearts through their ears, and ears prefer short, direct, conversational sentences. There are three standards that apply equally to talking and writing—clarity, accuracy, and appropriateness. 43. Clarity. If the audience doesn't understand the message instantly, then the speaker has, to some extent, failed. Thus, every possible measure must be taken to ensure that all your words and thoughts are perfectly clear to the audience. 44. Accuracy. As a conscientious speaker, you must see to it that your information is as current and as accurate as research can make it. 45. Appropriateness. In addition to being precise, your language should also be suitable to the subject, audience, and occasion. [A] For instance, a speaker can vary his/her pitch or tone to change the meaning expressed. A writer, on the other hand, has to rely solely on the words and context or even explanations in braces to achieve that. [B] Good talking is wordy, repetitive, and far less structured than efficient writing. A good speech, reproduced word for word on paper, usually does not read well because it rambles and repeats words and thoughts. It is not nearly as disciplined and organized as good writing. [C] Throughout your talk, words are your prime means for helping your audience understand your message. And to harness the profound power of words, you should develop a lifelong habit of using a dictionary and a thesaurus. If you do not exploit these resources. you will fail to achieve your full potential as a speaker and conversationalist. Another device that will help you achieve clarity in your talk is a summary. If your talk consists of three will researched major points, lit those points in your introduction so your audience will know at once what ground you will cover. Discuss them in depth, summarize them at the end of your talk, and emphasize any conclusions hat they lead to. [D] For example, a speaker who's addressing a Parent-Teacher Association should avoid the statistical and psychological jargon of advanced educational researchers. By the same token, she should not indulge in teenage slang. Any speaker worth her salt will analyze her audience first and adapt her language accordingly. [E] The surest way for you to damage your credibility is to spew forth misinformation or outdated information. How many times have you seen a story, a name, an important fact, or a charge against someone retracted in newspapers? Unfortunately, the damage was done when the misinformation first appeared in print. Such unwarranted embarrassment and mental anguish could have been avoided if someone had taken the time to recheck the information. If your talk is on a current or crucial topic, do your homework and arm yourself with quotations and sources to fortify your facts. [F] Long, involved sentences are acceptable in writing for two reasons: (1) The eye can absorb many more words in an instant than the ear can hear. (2) If a reader stumbles on a marathon sentence, she can read it again. Not so with spoken words—once uttered they're gone, especially in speech. If a listener misses a sentence, both she and the speaker have lost part of the message; there is no going back, except perhaps during the question-and-answer period. In a conversation, of course, the listener can ask the speaker to repeat.

填空题Long before Man lived on the Earth, there were fishes, reptiles, birds, insects, and some mammals. Although some of these animals were ancestors of kinds living today, others are now extinct, that is, they have no descendants alive now. 11 . Very occasionally the rocks show impression of skin, so that, apart from color, we can build up a reasonably accurate picture of an animal that died millions of years ago. That kind of rock in which the remains are found tells us much about the nature of the original land, often of the plants that grew on it, and even of its climate. 12 . Nearly all of the fossils that we know were preserved in rocks formed by water action, and most of these are of animals that lived in or near water. Thus it follows that there must be many kinds of mammals, birds, and insects of which we know nothing. 13 . There were also crablike creatures, whose bodies were covered with a horny substance. The body segments each had two pairs of legs, one pair for walking on the sandy bottom, the other for swimming. The head was a kind of shield with a pair of compound eyes, often with thousands of lenses. They were usually an inch or two long but some were 2 feet. 14 . Of these, the ammonites are very interesting and important. They have a shell composed of many chambers, each representing a temporary home of the animal. As the young grew larger it grew a new chamber and sealed off the previous one. Thousands of these can be seen in the rocks on the Dorset Coast. 15 . About 75 million years ago the Age of Reptiles was over and most of the groups died out. The mammals quickly developed, and we can trace the evolution of many familiar animals such as the elephant and horse. Many of the later mammals though now extinct, were known to primitive man and were featured by him in cave paintings and on bone carvings. A. The shellfish have a long history in the rock and many different kinds are known. B. Nevertheless, we know a great deal about many of them because their bones and shells have been preserved in the rocks as fossils, from them we can tell their size and shape, how they walked, the kind of food they ate. C. The first animals with true backbones were the fishes, first known in the rocks of 375 million years ago. About 300 million years ago the amphibians, the animals able to live both on land and in water, appeared. They were giant, sometimes 8 feet long, and many of them lived in the swampy pools in which our coal seam, or layer is formed. The amphibians gave rise to the reptiles and for nearly 150 million years these were the principal forms of life on land, in the sea, and in the air. D. The best index fossils tend to be marine creatures. These animals evolved rapidly and spread over large over large areas of the world. E. The earliest animals whose remains have been found were all very simple kinds and lived in the sea. Later forms are more complex, and among these are the sea-lilies, relations of the star-fishes, which had long arms and were attached by a long stalk to the sea bed, or to rocks. F. When an animal dies, the body, its bones, or shell, may often be carried away by streams into lakes or the sea and there get covered up by mud. If the animal lived in the sea its body would probably sink and be covered with mud. More and more mud would fall upon it until the bones or shell become embedded and preserved. G. Many factors can influence how fossils are preserved in rocks. Remains of an organism may be replaced by minerals, dissolved by an acidic solution to leave only their impression, or simply reduced to a more stable form.

填空题{{B}}Directions:{{/B}} In the following text, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list A-G to fit into each of the numbered blanks. There are two extra choices, which do not fit in any of the blanks. There are two extra choices, which do not fit in any of the blanks. Mark your answers on ANSER SHEET 1. [A] He is unlikely to produce such a big hit in the near future, so more of his attention is directed to revising the old song and selling it to more people. [B] Back in the 1950s, he says, performers got only one-tenth of the share of royalties that they do now. For years, artists have, with good reason, accused big record labels of ripping them off. [C] This month, early recordings by Elvis himself started to enter Europe's public domain. Over the next few decades a torrent of the most popular tracks from the Beatles, the Rolling Stones and many other artists will become public property in Europe—to the pleasure of fans and the consternation of the music industry. [D] The music industry also points out that America gives artists almost twice as much copyright protection as Europe. America has repeatedly lengthened copyright terms, with the latest reprieve, the Sonny Bono Copyright Term Extension Act of 1998, giving performers protection for 95 years after publication. [E] But when the attention is shifted from Europe to America, artists should feel much better because the length of copyright protection there is even shorter. It seems that the American government is more interested in serving the public than the already very rich artists. [F] Music executives want the European Commission to protect them from such unwelcome come competition by extending the copyright term. [G] And that estimate accounts only for songs up to the end of the 1950s. Far more will be at risk as music from the 1960s and 1970s moves out of copyright. "Every three months from the beginning of 2008," says Cliff Richard, who was once Britain's answer to Elvis Presley, "I will lose a song." The reason is that in most European countries copyright protection on sound recordings lasts for 50 years, and (now) Sir Cliff recorded his first hit single, "Move It", in 1958. (41) ______ One of the big four music firms estimates that about 100m "deep catalogue" (ie, old) albums now sold in Europe each year will have entered the public domain by the end of 2010. Assuming a current wholesale price of $10, that could jeopardise $1 billion of revenues, or about 3% of annual recorded music sales. (42)______ Even once much of the back catalogue has entered the public domain, the big music firms can carry on selling it on CD. They will even benefit from not having to pay anything to the artist or to his estate. They will in many cases still own copyright on the original cover art. But they will face new competition from a host of providers of CDs who may undercut them. And on the internet, public domain music is likely to be free, as much of the copyrighted stuff already is on peer-to-peer networks. (43)______Artists have rallied to the cause: U2, Status Quo and Charles Aznavour all want the 50-year limit increased. Many more acts will sign a petition this spring. Sir Cliff has spent hours complaining to the commission that composers of songs get copyright for 70 years after their death: more than performers. (44)______ Many people believe that America has gone too far in protecting copyright at the expense of the public good, including, it seems, the commission, which said last year that it saw no need to lift its own 50-year limit. Its deadline for proposals on copyright law has slipped from this year to 2006. But governments are likely to weigh in on the issue. France, Italy and Portugal have indicated that they support an extension of the term, and Britain is likely to stick up for its own music major, EMI. Although artists and their estates want longer copyright, the big music firms would benefit from it the most, especially in the next couple of decades, says Stephen King, chairman of the Association of United Recording Artists and manager of the Libertines. (45)______ Now they have wised up about making deals. The best guarantee of financial security—safer than clinging on to copyright—is hiring a good lawyer early on.