填空题[A] The Need for Science[B] The Methods of Science[C] The Challenge of Unsolved Problems[D] The Specific Features of the Laws of Science[E] The Steps in Establishing a Scientific Theory[F] The Rapid Increase of Scientific Knowledge It is the business of the scientist to accumulate knowledge about the universe and all that is in it, and to find, if he is able, common factors which underlie and account for the facts that he knows. He chooses, when he can, the method of the "controlled experiment". 41. ______ In the course of his inquiries the scientist may find what he thinks is one common explanation for an increasing number of facts. The explanation, if it seems consistently to fit the various facts, is called a hypothesis. If a hypothesis continues to stand the test of numerous experiments and remains unshaken, it becomes a law. 42. ______ The "laws" of science differ from the "laws" of a country in two ways. First, a scientific law is liable at any time to need modifying. This happens when a fact is discovered which seems to contradict what the "law" would lead one to expect. The "law" may, in fact, have to be abandoned altogether. Second, a scientific "law" says, "This is likely to be the explanation", or "This accounts for the facts as far as we know them". But the "law" of the country says, "You must... " or "You must not... " The scientific "law" has no moral force; it is not binding on human behavior nor approved or opposed by human conscience. 43. ______ The evidence as to the vastness of the universe and the complexity of its arrangements continues to grow at an amazing rate. The gap between what we know and all that can he known seems not to diminish, but rather to increase with every new discovery. Fresh unexplored regions are forever opening out. The rapidity of the growth of scientific knowledge, in the nineteenth and twentieth centuries, is apt to give students and teachers the impression that no sooner is a problem stated than the answer is forthcoming. A more detailed study of the history of science corrects the impression that fundamental discoveries are made with dramatic suddenness. Even in our present age no less than fifty years separate the discovery of radioactivity from the explosion of the first atomic bomb. The teacher, giving his brief accounts of scientific discovery, is apt to forget the long periods of misunderstanding, of false hypotheses and general uncertainty, which almost invariably precede the clear statement of scientific truth. 44. ______ The vast mass of information which scientists have gained has provided the answer to the fundamental questions which, through the centuries, have puzzled and sometimes tortured the human mind. There are many such questions. The study of parasites has provided evidence that organisms which could be self-supporting have become parasites, but hardly any light has been shed on the problem of why they should have done so. What enables an organism to respond to the poisonous secretions of harmful bacteria and organize its resources to defend its life? 45. ______ To raise the standard of living in any country, two things are required, scientific knowledge, and a population sufficiently educated to understand how to apply it. Without the latter, the expected benefits will not come.

填空题for-profit company

填空题It was not until two o'clock a.m that 他妻子才回来.

填空题A．要求安静 B．表示疼痛 C．表示惊讶 D．表示赞叹高兴 E．表示厌恶和鄙视 F．表示得意

填空题This evening dress is rather expensive since it is made ______.

填空题Fred: When do you usually have your computer class? Jane: ______.

填空题[A]Manyofthepartnershipsactasvirtualpharmaceuticalcompanies,bringingtogetherexpertisefromfarafield.TheDrugsforNeglectedDiseasesinitiative,forexample,hasdrawntogetherbasicresearchfromacademicsinVenezuela,moleculesfromJapaneseandFrenchdrugmakers,clinicaltrialsinEthiopiaandmanufacturingbyBrazilianfirms.[B]However,itisnotjustpoorcountriesthataremissingout.Forexample,thereisanurgentneedfornewantibioticsinindustrialisedcountriesasdrag-resistantbacteriaemerge.Yetantibioticdevelopment—oncethecornerstoneofthedrugindustry—hasfallenoutoffavourwithBigPharmafirmsbecauseofscientifichurdlesandregulatoryrequirements.[C]Afewbigdrugmakers,suchasGSKandNovartis,whichinheritedaninterestintropicaldiseasefromtheirparentfirms,havechosentoinvestinatleastearly-stageR&Dinmalaria,tuberculosisanddengue,withaviewtopartneringlateron.Theyaremotivatedmainlybyphilanthropy,butalsowanttopolishtheirimageandhopetoselltotravellersandtoarisingmiddleclassindevelopingcountries.[D]Askabigdrug-companybosswhyheisinthebusinessofmakingpharmaceuticals,andhewillsayhewantsto"addressunmetmedicalneeds".Butnotallmedicalneedsareequallyattractive.Mostofthe7,500-plusmedicinescurrentlyindevelopmentbybiotechandpharmaceuticalcompaniesareforchronicdiseasesoftherichworld.Atthesametime.someofhumanity'snastiestafflictionsgetlittleattention.Tropicaldiseases,suchassleepingsicknessorleishmaniasis,areaturn-offfordrugmakersbecausetheystrikemainlyinpoorcountriesandofferlittlehopeofanattractivereturnoninvestment.Ofthe1.500orsodrugslaunchedoverthepast30years,fewerthan20dealspecificallywithtropicaldisease.[E]Thequestionishowtogettheproductsoutofthepipelineandtothepeoplewhoneedthem.DevelopmentcostscanbelowerthaninBigPharma,inpartbecauseclinicaltrialsfordiseasessuchasmalariacanbesmaller,fasterandthereforecheapertorunthanfor.say,Alzheimer'sdisease.Evenso.ChristopherHentschelheadoftheMedicinesforMalariaVenture.reckonsitwillcostatleast$100tobringjustodeofitsproductstomarket,somuchmoremoneyisneeded.[F]Onewayofgettingattentionforneglecteddiseasesisforpatientstotakeaction.Forexample,theALSTherapyDevelopmentFoundation.startedbyJamesHeywood,whosebrotherwasstruckdownbythisneurodegenerativedisease,isusingitsmodestbudgettotesthundredsofcompoundsinmiceandmenmthehopeoffindingatreatmentforALS.[G]Anotherrouteistolaunchpublic-privatepartnerships.Drugcompaniescontributemolecules,manpowerandmachinestonot-for-profitgroupsthatco-ordinateproductdevelopment,fundedmainlybyprivatesourcessuchastheGatesFoundation,withsomegovernmentmoney.Therearenowabout20suchpartnerships,focusedondevelopingnewdrugs,vaccinesordiagnosticsforparticulardiseasesofthedevelopingworldthatwillmakethemaccessibletopoorpopulations.Order:

填空题It was in the primary school where my teacher introduced me to computers. A. It was B. in the primary C. where D. me to

填空题Henry Fielding"s(11)is a typical(12)century novel, representing the orderliness of the universe by means of its highly(13)form.

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.{{U}} (41) {{/U}}. 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.{{U}} (42) {{/U}}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.{{U}} (43) {{/U}}. 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.{{U}} (44) {{/U}}. 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.{{U}} (45) {{/U}}. 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, or 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 creature. There 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 forma 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It was Bessie Smith, through her tone and her cadence, who helped me to dig back to the way I myself must have spoken when I was a Pickaninny.

填空题Just as 2001 was coming to an end, the USA TODAY-CNN-Gallup Poll(盖洛普民意测验) asked Americans if they were satisfied with the way things are going in the country. Surprisingly, 70 percent said yes. 41)______ What makes the number even more remarkable is that the 70 percent satisfaction index (指数) is among the highest the Gallup Poll has measured in the nearly 30 years it has been asking the question. Moreover, the satisfaction rate has usually been lowest in times of economic difficulty. For example, in June 1992, with the economy in recession, just 14 percent said they were satisfied with the way things were going in the country. This time around, while most Americans are concerned about the economy and the accompanying threat of job losses, they're not letting the uncertainty get them down. 42)______ 43)______ Some analysts suggest that it is merely whistling past the graveyard. But other analysts say it is more a reflection of the indomitable(不屈不挠) and generous American spirit that showed itself so dramatically in the aftermath(不幸后果) of Sept. 11 (9.11). Rather than pull down the shades and hide under the bed in the face of further terrorism threats and the grim realization that the united States is not as invulnerable as most once thought, Americans poured into the streets and came together in a unity of purpose and resolve not seen since World War II. They rallied around the president and strongly supported the use of military force to combat terrorism. 44)______ Are 70 percent of the American people really satisfied with the way things are going in the country right now? 45)______ Yet, there is something running through the Am0rican psyche that causes it to refuse to give in to despair. Call it naive. Call it foolish. Call it wlfistling past the graveyard. Whatever it is, it's good to see. With spirit like that, we can be sure that this too will pass. A. At the same time, Americans showed their compassion not only in their generous contributions to funds to aid the thousands of families of victims of the attacks, but also in their support for sending humanitarian aid to the people in war-torn Afghanistan and their insistence that women there be given equal rights With men. B. Three of 4 say they expect the economy to be better a year from now. C. Americans are not frightened by terrorism, but showed a particular mood or an emotional state characterized by vigor and animation. D. So how can we explain this unexpected expression of optimism that appears to be sweeping through the population? E. Probably not. Terrorism threats are still with us. Unemployment is up to 5.8 percent. F. Terrorism is unlawful use or threatened use of force or violence by a person or an organized group against people or property with the, intention of intimidating or coercing societies or governments, often for ideological or political reasons. G. Think about it. Less than four months after the most devastating foreign attack in the nation’s history, and with an economy still in recession, one might think most Americans would be in a sour mood and unlikely to think positively about much of anything. Yet, 7 of 10 expressed an upbeat outlook.

填空题In English, nouns have three cases—nominative, accusative and genitive.

填空题Author______ Title______It was now midnight, and my task was drawing to a close. I had completed the eighth, the ninth and the tenth tier. I had finished a portion of the last and the eleventh; there remained but a single stone to be fitted and plastered in.

填空题A．Leave them behind B．Change the subject C．Limit the time you spend with them D．Don"t make their problems your problems E．Don"t pretend that their behavior is "OK". F．Talk about solutions, not problems G．Speak up for yourself Some people will have a rain cloud hanging over them, no matter what the weather is outside. Their negative attitude is toxic to your own moods, and you probably feel like there is little you can do about it. But that couldn"t be farther from the truth. If you want to effectively deal with negative people and be a champion of positivity, then your best route is to take definite action through some of the steps below. 1 First, let"s get this out of the way. You can be more positive than a cartoon sponge, but even your enthusiasm has a chance of being afflicted by the constant negativity of a friend. In fact, negativity has been proven to damage your health physically, making you vulnerable to high levels of stress and even cardiac disease. There"s no reason to get hurt because of someone else"s bad mood. Though this may be a little tricky depending on your situation, working to spend slightly less time around negative people will keep your own spirits from slipping as well. 2 This is an easy trap to fall into. Point out to the person that their constant negativity isn"t a good thing. We don"t want to do this because it"s far easier to let someone sit in their woes, and we"d rather just stay out of it. But if you want the best for this person, avoid giving the false impression that their negativity is normal. 3 Though I consider empathy a gift, it can be a dangerous thing. When we hear the complaints of a friend or family member, we typically start to take on their burdens with them. This is a bad habit to get into, especially if this is a person who is almost exclusively negative. These types of people are prone to embellishing and altering a story in order to gain sympathy. Why else would they be sharing this with you? 4 When you suspect that a conversation is starting to take a turn for the negative, be a champion of positivity by changing the subject. Of course, you have to do this without ignoring what the other person said. Acknowledge their comment, but move the conversation forward before the pleasure gained from complaining takes hold of either of you. 5 Sometimes, changing the subject isn"t an option if you want to deal with negative people, but that doesn"t mean you can"t still be positive. I know that when someone begins dumping complaints on me, I have a hard time knowing exactly what to say. The key is to measure your responses as solution-based. You can do this by asking questions like, "Well, how could this be resolved?" or, "How do you think they feel about it?" Use discernment to find an appropriate response that will help your friend manage their perspectives.