研究生科技英语阅读课文翻译(1-10).
研究生英语课文翻译paraphrase

Unit 1●翻译:(黑体的汉字表示与教师用书不同,斜体的汉字表示重点翻译不要遗漏)pass ion, wisdom, altruis m, insight, creativ ity—sometim es only the trialsof adversitycan fosterthese qualities, because sometim es only drastic situations can force us to take on the painful process of change. (Para.6)慈悲、智慧、无私、洞察力及创造力——有时只有经历逆境的考验才能培育这些品质,因为有时只有极端的情形才能迫使我们去承受痛苦的改变过程。
2.In that moment, our sense of invulne rabili ty is pierced, and the self-protect ive mentalarmorthat normall y standsbetween us and our percept ions of the world is torn away. (Para.12) 在事情发生的那一瞬间,我们的安全感被冲破了,平时处于我们与我们对世界的种种看法之间的自我保护的精神盔甲被剥离了。
3.They say that materia l ambitio ns suddenly seem silly and the pleasur es of friends and familyparamou nt—and that the crisisallowed them to recognize in line with their new priorit ies.(Para.14)他们说物质追求突然间变得很无聊,而朋友和家庭带来的快乐变得极为重要,他们还说危机使他们能够按照这些新的优先之事来重新认识生活。
研究生科技英语阅读课文翻译8

Why We're Fat1 So why is obesity happening? The obvious, clichéd-but-true answer is that we eat too much high-calorie food and don't burn it off with enough exercise. If only we had more willpower, the problem would go away. But it isn't that easy.为什么会有肥胖症?一个明显、老生常谈但又真实的答案就是我们吃太多高热量食物并且没有进行足够的运动消耗它。
要是我们的意志力更强大,这个问题便迎刃而解了。
但是,问题并不是那么简单。
2 When warned about the dangers of overeating, we get briefly spooked and try to do better. Then we're offered a plateful of pancakes smothered in maple syrup, our appetite overpowers our reason, and before we know it, we're at it again. Just why is appetite such a powerful driver of behavior, and, more important, how can we tame it? 当我们被警告说吃得太多的时候,一时总会被吓倒并努力做好一些。
然后一碟涂满槭糖浆的煎饼摆在面前,我们的食欲战胜了我们的理智,等到我们意识到它的时候,我们又重蹈覆辙了。
到底为什么食欲具有如此强大的推动力?更重要的是,我们怎么才能够控制它?3 Within the past few years, science has linked our ravenous appetites to genes and hormones. Among the hormones that fuel these urges are ghrelin and leptin, known as the "hunger hormones." Ghrelin is produced mostly by cells in the stomach lining. Its job is to make you feel hungry by affecting the hypothalamus, which governs metabolism. Ghrelin levels rise in dieters who lose weight and then try to keep it off. It's almost as if their bodies are trying to regain the lost fat. This is one reason why it's hard to lose weight and maintain the loss.近几年来,科学将我们迫不及待要吃的食欲跟基因和激素联系起来。
研究生科技英语阅读翻译

英⽂写作翻译频道为⼤家整理的研究⽣科技英语阅读翻译,供⼤家参考:)Group: Number 1 Members: Yu Zhehua Yang Jing Rong Wei Wangxiaoqiao Li Ni Liu Qian2011-12-231.What is it that makes mathematics mathematics?Mathematics n. 数学,数学运算,数学应⽤译:是什么使数学成为数学?是什么使数学成为数学?成为数学2.What are the precise characteristics that make mathematics into a discipline that is so central to every advanced civilization, especially our own?Precise adj. 精确的,准确的译:到底是数学的哪些特性使得数学成为对每⼀种⾼等⽂明,数学成为对每⼀种⾼等⽂明,尤其是对我们现在的⽂明如此重要的学科?3.Many explanations have been attempted.对此,译:(对此,)我们已经试着做出了⼀些解释。
解释。
4.One of these sees mathematics as the ultimate in rational expression; in fact, the expression “the light of reason” could be used to refer to mathematics.Ultimate In fact Refer to n.终极,顶点事实上,实际上把…归因(于),认为…起源(于)译:有⼀种解释认为数学是⼀种终极的理性表达⽅式;⽽实际上,极的理性表达⽅式;⽽实际上,我们可以⽤“ 理性之光”们可以⽤ “ 理性之光 ” 这个说法来形容数学。
研究生科技英语阅读课文翻译4

1 Hello. My name is Stephen Hawking. Physicist, cosmologist and something of a dreamer. Although I cannot move and I have to speak through a computer, in my mind I am free. Free to explore the universe and ask the big questions, such as: is time travel possible? Can we open a portal to the past or find a shortcut to the future? Can we ultimately use the laws of nature to become masters of time itself?大家好,我是斯蒂芬-霍金,是物理学家、宇宙学家及梦想家,尽管身体不能活动,只能通过电脑与大家交流,但从内心中我是自由的,自由地探索宇宙,思考以下重大问题:时间旅行是否可行?能否打开一个回到过去的通道,或找到通向未来的捷径?我们最终能否利用自然规律成为掌控时间的主人?2 To see how this might be possible, we need to look at time as physicists do - at the fourth dimension. It's not as hard as it sounds. Every attentive schoolchild knows that all physical objects, even me in my chair, exist in three dimensions. Everything has a width and a height and a length.为了让这一切从虚幻变成现实,我们应以物理学家的角度来重新审视时间——即第四维。
新世纪研究生公共英语教材阅读b原文翻译unit-10

Unit 10 Is Science Dangerous? Uite10课文译文科学危险吗?Lewis Wolpert 刘易斯·沃尔珀特Does society need protecting from scientific advances? Most emphatically not, so long as scientists themselves and their employers are committed to full disclosure of what they know.人类社会需要保护以抵挡科学发展带来的危险吗?当然不需要,只要科学家及其雇主们致力于公开他们所知道的一切详情。
1. The idea that knowledge is dangerous is deeply embedded in our culture. Adam and Eve were forbidden to eat from the biblical Tree of Knowledge, and in Milton’s Paradise Lost the ser pent addresses the Tree as the ―Mother of Science‖. The archangel Raphael advises Adam to be ―lowly wise‖when he tries to question him about the nature of the Universe. Indeed, Western literature is filled with images of scientists meddling with nature, with disastrous results. Scientists are portrayed as a soulless group, unconcerned with ethical issues.1.知识是危险的这一观念在我们的文化中根深蒂固。
研究生科技英语阅读课文翻译(1-10).

Unit 1 Genetically modified foods -- Feed the World?If you want to spark a heated debate at a dinner party, bring up the topic of genetically modified foods. For many people, the concept of genetically altered, high-tech crop production raises all kinds of environmental, health, safety and ethical questions. Particularly in countries with long agrarian traditions -- and vocal green lobbies -- the idea seems against nature.如果你想在某次晚宴上挑起一场激烈的争论,那就提出转基因食品的话题吧。
对许多人来说,高科技的转基因作物生产的概念会带来诸如环境、健康、安全和伦理等方面的各种问题。
特别是在有悠久的农业生产传统和主张环保的游说集团的国家里,转基因食品的主意似乎有悖自然。
In fact, genetically modified foods are already very much a part of our lives. A third of the corn and more than half the soybeans and cotton grown in the US last year were the product of biotechnology, according to the Department of Agriculture. More than 65 million acres of genetically modified crops will be planted in the US this year. The genetic is out of the bottle.事实上,转基因食品已经成为我们生活重要的一部分。
研究生科技英语阅读课文翻译(1-10)
Unit 1 Genetically modified foods -- Feed the World?If you want to spark a heated debate at a dinner party, bring up the topic of genetically modified foods. For many people, the concept of genetically altered, high-tech crop production raises all kinds of environmental, health, safety and ethical questions. Particularly in countries with long agrarian traditions -- and vocal green lobbies -- the idea seems against nature.如果你想在某次晚宴上挑起一场激烈的争论,那就提出转基因食品的话题吧。
对许多人来说,高科技的转基因作物生产的概念会带来诸如环境、健康、安全和伦理等方面的各种问题。
特别是在有悠久的农业生产传统和主张环保的游说集团的国家里,转基因食品的主意似乎有悖自然。
In fact, genetically modified foods are already very much a part of our lives. A third of the corn and more than half the soybeans and cotton grown in the US last year were the product of biotechnology, according to the Department of Agriculture. More than 65 million acres of genetically modified crops will be planted in the US this year. The genetic is out of the bottle.事实上,转基因食品已经成为我们生活重要的一部分。
研究生英语阅读教程(基础级第二版)1-10课文及课后习题答案翻译
Lesson1READING SELECTION AWorld English: A Blessing or a Curse? Universal languageBy Tom McArthur[1] In the year 2000, the language scholar Glanville Price, a Welshman, made the following assertion as editor of the book Languages in Britain and Ireland:For English is a killer. It is English that has killed off Cumbric, Cornish, Norn and Manx. There are still parts of these islands where sizeable communities speak languages that were there before English. Yet English is everywhere in everyday use and understood by all or virtually all, constituting such a threat to the three remaining Celtic languages, Irish, Scottish Gaelic, and Welsh... that their long-term future must be considered... very greatly at risk. (p 141)Some years earlier, in 1992, Robert Phillipson, English academic who currently works in Denmark, published with Oxford a book entitled Linguistic Imperialism. In it, he argued that the major English-speaking countries, the worldwide English-language teaching industry, and notably the British Council pursue policies of linguistic aggrandisement. He also associated such policies with a prejudice which he calls linguicism (a condition parallel to(equal to/ similar to) racism and sexism). As Phillipson sees it, leading institutions and individuals within the predominantly "white" English-speaking world, have [by design(=deliberate) or default(=mistake)] encouraged or at least tolerated—and certainly have not opposed—the hegemonic spread of English, a spread which began some three centuries ago as economic and colonial expansion.[2] Phillipson himself worked for some years for the British Council, and he is not alone among Anglophone academics who have sought to point up the dangers of English as a world language. The internationalization of English has in the last few decades been widely discussed in terms of three groups: first, the ENL countries, where English is a native language (this group also being known as the "inner circle"); second, the ESL countries, where English is a second language (the "outer circle"); and third, the EFL countries, where English is a foreign language (the "expanding circle"). Since the 1980s, when such terms became common, this third circle has in fact expanded to take in the entire planet.[3] For good or for ill, there has never been a language quite like English. There have been many "world languages", such as Arabic, Chinese, Greek, Latin, and Sanskrit. By and large, we now view them as more or less benign, and often talk with admiration and appreciation about the cultures associated with them and what they have given to the world. And it is fairly safe to do this, because none of them now poses much of a threat.[4] English however is probably too close for us to be able to analyze and judge it as dispassionately, as we may now discuss the influence of Classical Chinese on East Asia or of Classical Latin on Western Europe. The jury is still out in the trial of the English language, and may take several centuries to produce its verdict, but even so we can ask, in this European Year of Languages, whether Price and Phillipson are right to warn us all about the language that I am using at this very moment.[5] It certainly isn't hard to look for situations where people might call English a curse. An example is Australia, which is routinely regarded as a straightforward English-speaking country. The first Europeans who went there often used Latin to describe and discuss the place. The word Australia itself is Latin; evidently no one at the time thought of simply calling it "Southland" (which is what Australia means). In addition, in South Australia there is a wide stretch of land called the Nullarbor Plains, the first word of which sounds Aboriginal, but nullarbor is Latin and means "no trees". And most significantly of all, the early settlers called the continent a terra nullius. According to the Encarta World English Dictionary (1999) the Latin phrase terra nullius means:... the idea and legal concept that when the first Europeans arrived in Australia the land was owned by no one and therefore open to settlement. It has been judged not to be legally valid.But that judgment was made only recently. When the Europeans arrived, Australia was thinly populated—but populated nonetheless—from coast to coast in every direction. There were hundreds of communities and languages. Many of these languages have died out, many more are in the process of dying out, and these dead and dying languages have been largely replaced by either kinds of pidgin English or general Australian English. Depending on your point of view, this is either a tragic loss or the price of progress.[6] At the same time, however, can the blame for the extinction of Aboriginal languages be laid specifically at the door of English? The first Europeans to discover Australia were Dutch, and their language might have become the language of colonization and settlement. Any settler language could have had the same effect. If for example the Mongols had sustained their vast Eurasian empire, Mongolian might have become a world language and gone to Australia. Again, if history had been somewhat different, today's world language might have been Arabic, a powerful language in West Asia and North Africa that currently affects many smaller languages, including Coptic and Berber. Spanish has adversely affected indigenous languages in so-called "Latin" America, and Russian has spread from Europe to the Siberian Pacific. If English is a curse and a killer, it may only be so in the sense that any large language is likely to influence and endanger smaller languages.[7] Yet many people see English as a blessing. Let me leave aside here the obvious advantages possessed by any world language, such as a large communicative network, a strong literary and media complex, and a powerful cultural and educational apparatus. Let us instead look at something rather different: the issue of politics, justice, and equality. My object lesson this time is South Africa. Ten years ago, South Africa ceased to be governed on principles of racial separateness, a system known in Afrikaans (a language derived from Dutch) as apartheid. The system arose because the Afrikaner community—European settlers of mainly Dutch descent—saw themselves as superior to the indigenous people of the land they had colonized.[8] English-speaking South Africans of British descent were not particularly strong in opposing the apartheid regime, and the black opposition, whose members had many languages, was at first weak and disorganized. However, the language through which this opposition gained strength and organization was English, which became for them the key language of freedom and unity, not of oppression. There are today eleven official languages in South Africa—English, Afrikaans, and nine vernacular languages that include Zulu, Ndebele, and Setswana. But which of these nine do black South Africans use (or plan to use) as their national lingua franca? Which do they wish their children to speak and write successfully (in addition to their mother tongues)? The answer is none of the above. They want English, and in particular they want a suitably Africanized English.[9] So, a curse for the indigenous peoples of Australia and something of a blessing for those in South Africa...[10] How then should we think of English in our globalizing world with its endangered diversities? The answer, it seems to me, is crystal clear. Like many things, English is at times a blessing and at times a curse—for individuals, for communities, for nations, and even for unions of nations. The East Asian symbolism of yin and yang might serve well here: There is something of yang in every yin, of yin in every yang. Although they are opposites, they belong together: in this instance within the circle of communication. Such symbolism suggests that the users of the world's lingua franca should seek to benefit as fully as possible from the blessing and as far as possible avoid invoking the curse. (1, 292 words)ABOUT THE AUTHORDr. Tom McArthur is founder editor of the Oxford Companion to the English Language(1992) and the quarterly English Today: The International Review of the English Language (Cambridge, 1985— ). His more than 20 published works include the Longman Lexicon of Contemporary English(1981), Worlds of Reference: Language, Lexicography and Learning from the Clay Tablet to the Computer (1986), and The English Languages (1998). He is currently Deputy Director of the Dictionary Research Center at the University of Exeter.EXERCISESI. Reading ComprehensionAnswer the following questions or complete the, following statements.1. It can be inferred from Glanville Price's statement that he is ______.A. happy that English is everywhere in Britain and IrelandB. worried about the future of the remaining Celtic languagesC. shocked by the diversity of languages in Britain and IrelandD. amazed that many people in the UK still speak their Aboriginal languages2. Cumbric is used as an example of ______.A. a local dialectB. a victim of the English languageC. a language that is on the verge of extinctionD. a language that is used by only a limited number of people3. Which of the following is the major concern of the book Linguistic Imperialism?A. English teaching overseas.B. British government's language policies.C. Dominance of English over other languages.D. The role of English in technology advancement.4. Both Price and Phillipson are ______.A. government officialsB. advocates of linguistic imperialismC. in support of language policies carried out by the British CouncilD. concerned about the negative effect of English on smaller languages5. According to the text, the EFL countries ______.A. are large in numberB. is known as the "outer circle"C. will be endangered by EnglishD. have made English their official language6. According to McArthur, Chinese is different from English in that ______.A. it has made a great contribution to the worldB. it has had positive influence on other languagesC. it may result in the disappearance of other languagesD. it probably will not endanger the existence of other languages7. When he said the jury is out in the trial" (Line 3, Paragraph 4), McArthur meant ______.A. punishment is dueB. the jury is waiting for a trialC. no decision has been made yetD. there is no one to make the decision8. Australia might be used as an example to show that ______.A. languages are changing all the timeB. some English words are derived from LatinC. English has promoted the progress of some nationsD. English should be blamed for the extinction of smaller languages9. Many people see English as a blessing for people in ______.A. AustraliaB. East AsiaC. South AfricaD. ESL countries10. The main theme of this speech is that ______.A. English should be taught worldwideB. English as a world language does more harm than goodC. we should be objective to the internationalization of EnglishD. we should be aware of (realize) the danger of English as a world languageB. Questions on global understanding and logical structures1. Why does McArthur introduce Glanville Price and Robert Phillipson's points of view on the spread of English? What is his? Intention?McArthur quotes Price’s assertion and cites Pillipson’s viewpoint on the spread of English as sort of cons to initiate his argument. Cons are usually popularly believed arguments or opinions that are against the author’s point of view. Cons are commonly used writing techniques and are often employed in order to appeal the audience and highlight the author’sviewpoint.2. Does McArthur agree with what Price and Phillipson argued? From as early as which section does McArthur show his attitude? Toward the dominance of English as a world English?No. McArthur’s opinion is different from Price and Pillipson’s arguments. He doesn’t believe that English is a killer and should be blamed for the extinction of smaller languages. He sees English as both a blessing and a curse, maybe as a blessing more than a curse. After introducing Price and Pillipson’s viewpoints, McArthur writes about his own ideas on the iss ue of English as a world language. From the sentence “For good or for ill, there has never been a language quite like English”, we can learn that McArthur does not curse English like Price and Pillipson and he has a different point of view.3. By reading "It certainly isn't hard to look for situations where people might call English a curse", could we conclude that McArthur believes English is a curse?No. This sentence is a kind of justification. Although McArthur literally justifies the fact that there are situations where people might call English a curse, he doesn’t believe that English is virtually a curse. By adding the word “certainly” McArthur shows his intent.4. Could you pick up some words and expressions that signal change or continuation in McArthur's thought?“For good or for ill”(paragraph 3) /“however” (paragraph 4) /“But”(paragraph 5) / “At the same time,however”(paragraph 6) /“Yet”(paragraph 7)5. How many parts can this speech be divided? How are the parts organized?Part One: paragraphs 1 and 2. These two paragraphs introduce the situation that many academics argue against English as a world language.Part Two: paragraphs 3, 4, 5, 6, 7, 8, and 9. Paragraph three is a transitional paragraph that initiates McArthur’s own argument. In these paragraphs McArthur argues that English is not only a curse as many people have believed, but a blessing as well.Part Three: paragraph 10. McArthur concludes in the last paragraph that English may be a curse or a blessing depends on different situations and we should make advantages of world languages and avoid their disadvantages.II. VocabularyA. Choose the best word from the four choices to complete each of the following sentences.1. There has been much opposition from some social groups, ______ from the farming community.A. straightforwardlyB. notablyC. virtuallyD. exceptionally2. The ______ view in Britain and other Western countries associates aging with decline, dependency, isolation, and often poverty.A. predominantB. credulousC. inclusiveD. sustainable3. But gifts such as these cannot be awarded to everybody, either by judges or by the most ___ of governments./ reward rewardingA. toughB. demandingC. diverseD. benign4. The foreman read the ______ of guilty fourteen times, one for each defendant.A. prejudiceB. verificationC. verdictD. punishment5. They fear it could have a(n) ______ effect on global financial markets.A. sizeableB. adverse(negative)C. beneficialD. consequential6. The UN threatened to ______ economic sanctions if the talks were broken off.A. engageB. pursueC. abandon/ abundantD. invoke7. There are at least four crucial differences between the new ______ and the old government.A. regimeB. hegemonyC. complexD. federation/ fedal<->federal, confederate)8. These questions ______ a challenge to established attitude of superiority toward the outside world.A. evolveB. constituteC. tolerateD. aroused9. Because of this, a strong administrative ______ was needed to plan the use of scarce resources, organize production and regulate distribution.A. apparatusB. constitutionC. insistenceD. promotion10. I learnt that there are no genuinely ______ animals in this area, all the animals were brought here from other places.A. endangeredB. domesticatedC. indigenousD. extinctB. Choose the hest word or expression from the list given for each Honk Use each word or expression only once and make proper changes where necessary.point up by and large take in descent for good or illleave aside crystal clear die out endanger lay... at the door of1. The book concludes with a review of the possible impact (influence) of more intimate computers for good or ill, in various areas of human life.2. Moreover, it had become clear from the opinion polls that the unpopularity of the new tax was being laid at the door of the government which had introduced it, rather than the local authorities who were responsible for levying and collecting it.3. This case gave the example of breaking someone's arm: that is a really serious injury, but one which is unlikely to endanger the victim's life.4. Many of those who hold it live in poor areas and some are Colored, that is (i.e./ namely), of mixed European and African descent.5. This debate is important because it points up (stress/ emphasize) that "the facts" are not necessarily as simple and straightforward as they might at first sight seem.6. In the beginning, the meaning of life might be debated, but once past the first period, many of the conversations follow a well-worn route from one topic to the next and back again, taking in most of human life.7. But since agriculture forms the basis (base) of our industry, it was, by and large (on the whole), also an intensification of the crisis in the national economy in general.8. Let us leave aside other relevant factors such as education, career structure, pay and conditions of service and concentrate on (focus on) manpower management.(relate A to B)9. It is true that the exact nature of this issue is uncertain. However, one thing is crystal clear: it will not endanger the planet and its inhabitants.10. But if animal populations are too small, then they simply die out.III. ClozeThere are ten blanks in the following passage. Read the passage carefully and choose the best answer from the four choices given for each blank. [criteria: (1)semantic/ (2)grammatic]A simplified form of the English language based on 850 key words was developed in the late 1920s by the English psychologist Charles Kay Ogden and 1 by the English educator I. A. Richards. Known as Basic English, it was used mainly to teach English to non-English-speaking persons and 2 as an international language. The complexities of English spelling and grammar, however, were major 3 to the adoption of Basic English as a second language.The fundamental principle of Basic English was that any idea, 4 complex, may be reduced to simple units of thought and expressed clearly by a limited number of everyday words. The 850-word primary vocabulary was 5 600 nouns (representing things or events), 150 adjectives (for qualities and _ 6 ), and 100 general "operational" words, mainly verbs and prepositions. Almost all the words were in 7 use in English-speaking countries. More than 60 percent of them were one-syllable words. The basic vocabulary was created 8 by eliminating 9 the use of 18 "basic" verbs, such as make, get, do, have, and be.Numerous words which have the same or similar meanings and by verbs, such as make, get, do, have, and be. These verbs were generally combined with prepositions, such as up, among, under, in, and forward. For example,a Basic English student would use the expression “go up”10 "ascend". (Semantic / grammatical criterion)1. A. created B. publicized C. invented D. operated2. A. proved B. provided C. projected D. promoted3. A. advantages B. objections C. obstacles D. facileties4. A. however B. whatever C. wherever D. whenever5. A. comprised of B. made of C. composed of D. constituted of6. A. personalities B. properties C. preferences D. perceptions/ perceive)7. A. common B. ordinary C. average D. nonprofessional8. A. in all B. at times C. for good D. in part/ partially)9. A. experiencing B. exchanging C. excluding D. extending10. A. in spite of =despite B. in favor of C. instead of D. in case ofII. TranslationPut the following passages into Chinese.1. For English is a killer. It is English that has killed off Cumbric, Cornish, Norn and Manx. There are still parts of these islands where sizeable communities speak languages that were there before English. Yet English is everywhere in everyday use and understood by all or virtually all, constituting such a threat to the three remaining Celtic languages, Irish, Scottish Gaelic, and Welsh... that their long-term future must be considered... very greatly at risk.因为英语是个杀手。
研究生英语1-7单元课文翻译
Unit 1 对F的赞美1今年将有好几万的十八岁青年毕业,他们都将被授予毫无意义的文凭。
这些文凭看上去跟颁发给比他们幸运的同班同学的文凭没什么两样。
只有当雇主发现这些毕业生是半文盲时,文凭的效力才会被质疑。
2最后,少数幸运者会进入教育维修车间——成人识字课程,我教的一门关于基础语法和写作的课程就属于这种性质。
在教育维修车间里,高中毕业生和高中辍学生将学习他们本该在学校就学好的技能,以获得同等学力毕业证书。
他们还将发现他们被我们的教育体系欺骗了。
3在我教课的过程中,我对我们的学校教育深有了解。
在每学期开始的时候,我会让我的学生写一下他们在学校的不快体验。
这种时候学生不会有任何写作障碍!“我希望当时有人能让我停止吸毒,让我学习。
”“我喜欢参加派对,似乎没人在意。
”“我是一个好孩子,不会制造任何麻烦,于是他们就让我考试通过,及时我阅读不好,也不会写作。
”很多诸如此类的抱怨。
4我基本是一个空想社会改良家,在教这门课之前我将孩子们的学习能力差归咎于毒品、离婚和其他妨碍注意力集中的东西,要想学习好就必须集中注意力。
但是,我每一次走进教室都会再度发现,一个老师在期望学生全神贯注之前,他必须先吸引学生的注意力,无论附近有什么分散注意力的东西。
要做到这点,有很多种办法,它们与教学风格有很大的关系。
然而,单靠风格无法起效,有另一个办法可以显示谁是在教室里掌握胜局的人。
这个办法就是亮出失败的王牌。
5我永远也忘不了一位老师亮出那张王牌以吸引我的一个孩子的注意。
我的小儿子是个世界级的万人迷,学习不怎么动脑筋却总能蒙混过关。
直到施蒂夫特夫人当了他的老师,这种局面才彻底改变了。
6当她教我儿子英语时,我儿子是一个高中高年级学生。
“他坐在后排和他的朋友说话。
”她告诉我。
“你为什么不把他换到前排来?”我恳求道。
我相信令他难堪的做法会让他安心学习。
施蒂夫特夫人从眼睛上方冷冷地看着我。
“我不会换高年级学生的座位。
”她说,“我会给他们不及格的成绩。
科技英语阅读课文翻译
第一单元什么是罗素悖论?约翰·T·鲍德温,奥利弗·莱斯曼撰胡志国译罗素悖论是建立在这样的实例基础之上的:想象有一群理发师,他们(给所有,而且)只给不给自己刮胡子的人刮胡子。
假设这个集体中有一个理发师,他不给自己刮胡子,那么,按照这个集体的定义,他就必须给自己刮胡子。
但这个集体中的任何理发师都不能给自己刮胡子。
(否则,他就是在给自己刮胡子的人刮胡子了。
)伯特兰·罗素1901年发现的这个悖论是对他的一位数学同行的打击。
十九世纪晚期,戈特洛布·弗雷格试图通过符号逻辑为所有的数学建立一个基础。
他在形式表达式(如x=2)和数学特征(如偶数)之间建立了一种对应关系。
在他的推导中,人们可以随意使用任何特征为后来的特征定义。
罗素在他1903年出版的《数学原理》中公布了自己的悖论,证明了弗雷格系统存在根本缺陷。
在今天看来,这类系统最好通过所谓的集的结构式用集合的概念来描述。
例如,对于由数字4、5、6组成的集体,我们可以描述为:x是一个整数的集体,若用字母n表示这些整数,则n大于3小于7。
对这一集合的描述,在形式上我们写作x={n: n为整数,3<n<7}。
集合的对象不一定是数字。
我们可以设y={x:x为美国男性居民}。
很明显,对x的任何描述都可以填入冒号后的区域。
但罗素(恩斯特·策梅洛也独立地)发现,x={a: a不属于a}会导致矛盾的结论,就像对理发师集体的描述一样。
x自身是否属于x?无论是与否,结论都是矛盾的。
罗素发现这一悖论之后,弗雷格马上认识到他的系统被全盘推翻了。
即便如此,他无法解决这个悖论,而为了绕开这个悖论,人们在二十世纪做了许多尝试。
罗素本人对这一悖论的回答是他的“类型论”。
他分析道,之所以会产生悖论,是因为我们混淆了对数的集合的描述与对数的集合的集合的描述。
于是罗素引入了对象的分级系统:数,数的集合,数的集合的集合,等等。
这个系统曾被作为手段用于对数学基础的第一次形式化,并且在今天的某些哲学研究和计算机分支学科中仍有运用。
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Unit 1 Genetically modified foods -- Feed the World?If you want to spark a heated debate at a dinner party, bring up the topic of genetically modified foods. For many people, the concept of genetically altered, high-tech crop production raises all kinds of environmental, health, safety and ethical questions. Particularly in countries with long agrarian traditions -- and vocal green lobbies -- the idea seems against nature.如果你想在某次晚宴上挑起一场激烈的争论,那就提出转基因食品的话题吧。
对许多人来说,高科技的转基因作物生产的概念会带来诸如环境、健康、安全和伦理等方面的各种问题。
特别是在有悠久的农业生产传统和主张环保的游说集团的国家里,转基因食品的主意似乎有悖自然。
In fact, genetically modified foods are already very much a part of our lives. A third of the corn and more than half the soybeans and cotton grown in the US last year were the product of biotechnology, according to the Department of Agriculture. More than 65 million acres of genetically modified crops will be planted in the US this year. The genetic is out of the bottle.事实上,转基因食品已经成为我们生活重要的一部分。
根据农业部的统计,美国去年所种植玉米的1/3,大豆和棉花的一半以上都是生物技术的产物。
今年,美国将种植6500多万英亩的转基因作物。
基因妖怪已经从瓶子里跑出来了。
Yet there are clearly some very real issues that need to be resolved. Like any new product entering the food chain, genetically modified foods must be subjected to rigorous testing. In wealthy countries, the debate about biotech is tempered by the fact that we have a rich array of foods to choose from -- and a supply that far exceeds our needs. In developing countries desperate to feed fast-growing and underfed populations; the issue is simpler and much more urgent: Do the benefits of biotech outweigh the risks?但是,显然还有一些非常现实的问题需要解决。
就像任何一种要进入食物链的新食品一样,转基因食品必须经过严格的检验。
在富裕的国家里,由于有大量丰富的食品可供选择,而且供应远远超过需求,所以关于生物技术的争论相对缓和一些。
在迫切想要养活其迅速增长而又吃不饱的人口的发展中国家,问题比较简单,也更加紧迫:生物技术的好处是否大于风险呢?The statistics on population growth and hunger are disturbing. Last year the world's population reached 6 billion. And by 2050, the UN estimates, it will probably near 9 billion. Almost all that growth will occur in developing countries. At the same time, the world's available cultivable land per person is declining. Arable land hasdeclined steadily since 1960 and will decease by half over the next 50 years, according to the International Service for the Acquisition of Agri-Biotech Applications (ISAAA).关于人口增长和饥饿的统计数字读来令人感到不安。
去年,世界人口达到了60亿。
联合国预测,到2D0年,这个数字很可能将接近90亿,而增加的人口几乎都来自发展中国家。
与此同时,世界人均耕地正在减少。
国际农业生物工程应用技术采购管理局(ISAAA)称,自1960年以来,耕地面积一直持续下降,并将在今后50年减少一半。
The UN estimates that nearly 800 million people around the world are undernourished. The effects are devastating. About 400 million women of childbearing age are iron deficient, which means their babies are exposed to various birth defects. As many as 100 million children suffer from vitamin A deficiency, a leading cause of blindness. Tens of millions of people suffer from other major ailments and nutritional deficiencies caused by lack of food.联合国估计,世界上有近8亿人口营养不良。
它产生的效应是破坏性的。
大约有4亿的育龄妇女体内缺铁,也就是说,她们的婴儿将可能有各种天生的缺陷。
数量多达1亿的儿童缺乏维生素A,这是导致失明的主要原因。
还有数千万的人患有因食物匮乏而导致的其他严重疾病和营养不良症。
How can biotech help? Biotechnologists have developed genetically modified rice that is fortified with beta-carotene -- which the body converts into vitamin A -- and additional iron, and they are working on other kinds of nutritionally improved crops. Biotech can also improve farming productivity in places where food shortages are caused by crop damage attribution to pests, drought, poor soil and crop viruses, bacteria or fungi.生物技术对此能做些什么呢?生物技术专家已经培育出了含有β—胡萝卜素(身体可将之转化为维生素A)和更多铁元素的转基因水稻,目前正在研究培育其他一些增进营养成分的农作物。
生物技术还可以帮助提高因虫害、干旱、土壤贫瘠和作物病毒、细菌或真菌导致作物减产而出现食物匮乏的地区的农业生产率。
Damage caused by pests is incredible. The European corn borer, for example, destroys 40 million tons of the world's corn crop annually, about 7% of the total. Incorporating pest-resistant genes into seeds can help restore the balance. In trials of pest-resistant cotton in Africa, yields have increased significantly. So far, fears that genetically modified, pest-resistant crops might kill good insects as well as bad appear unfounded.虫害带来的损失令人难以置信。
例如,欧洲玉米螟每年毁掉4000万吨玉米,占世界玉米总产量的7%。
把抗虫害的基因植入种子可以帮助避免这一损失。
在非洲进行的抗虫害棉花试验中,棉花的产量已大幅度提高。
有人担心,抗虫害的转基因作物不仅将害虫杀死,而且有可能连益虫也一起杀死,但到目前为止,这种担心似乎没有根据。
Viruses often cause massive failure in staple crops in developing countries. Two years age, Africa lost more than half its cassava crop -- a key source of calories -- to the mosaic virus. Genetically modified, virus-resistant crops can reduce that damage, as can drought-tolerant seeds in regions where water shortages limit the amount of land under cultivation. Biotech can also help solve the problem of soil that contains excess aluminum, which can damage roots and cause many staple-crop failures. A gene that helps neutralize aluminum toxicity in rice has been identified.病毒常常在发展中国家造成主要粮食作物的大面积歉收。