Domain Structure of a Disoriented Chiral Condensate From a Wavelet Perspective
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小学上册英语第二单元真题试卷英语试题一、综合题(本题有100小题,每小题1分,共100分.每小题不选、错误,均不给分)1.What is 2 + 2?A. 3B. 4C. 5D. 6B2.I want to ______ a superhero. (become)3.Which animal is known for its ability to change colors?A. ChameleonB. ElephantC. TigerD. Bear4.Many plants are ______ (多年生) and return each year.5.I can’t wait to show my friends my new ____. (玩具名称)6.Which fruit is yellow and sour?A. AppleB. LemonC. OrangeD. Cherry7.What do we call the process of making fabric from fibers?A. WeavingB. KnittingC. SewingD. SpinningA8.What is the smallest continent?A. AfricaB. EuropeC. AustraliaD. Asia9.I like to run in the ______ (公园) every morning to stay fit.10. A rabbit has long _______ that help it navigate the world.11.What do we call a young crocodile?A. HatchlingB. CalfC. KitD. PupA Hatchling12.What do we use to write on a blackboard?A. PenB. CrayonC. ChalkD. MarkerC13.I love to _____ (study) different plant species.14.Geologists use the term "strata" to refer to ______ of rock layers.15.We go to the ______ (市场) for fresh fruits.16.What is the term for a large body of salt water?A. RiverB. LakeC. OceanD. PondC17.What do we call a machine used to take pictures?A. CameraB. ProjectorC. ScannerD. Television18.I saw a _________ in the garden. (蜗牛)19.What is the capital city of Indonesia?A. JakartaB. BaliC. BandungD. SurabayaA20.My friend, ______ (我的朋友), loves to play basketball.21.The _____ (铁路) connects cities.22.This game is very _______ (有趣).23.I want to _____ (eat/drink) some water.24.How many states are in the USA?A. 50B. 51C. 52D. 4825. A chemical _______ shows how substances react with each other. (反应式)26.The bee is _____ on the flower. (buzzing)27.I enjoy ______ (与家人一起) playing sports.28.I enjoy playing with my ______ (玩具车) in the living room. It goes ______ (快).29.The classroom is ________ and bright.30.What do frogs live in?A. TreesB. WaterC. DesertD. CavesB31.What is the name of the fairy tale character with long hair?A. Snow WhiteB. RapunzelC. BelleD. ArielB32.The chemical formula for potassium permanganate is _____.33.The _____ (叶片) can be broad or narrow.34.The chemical formula for ammonium phosphate is _____.35.Wildflowers grow __________ (自然) in meadows.36.The cake is ________ (非常好吃).37.I see a _______ (fox) in the distance.38.The capital of Cabo Verde is __________.39.The ancient Egyptians used _______ to write on. (纸草)40.What is the name of the ship that sank in 1912?A. LusitaniaB. TitanicC. BritannicD. MayflowerB41.We will visit our ______ (uncle) next weekend.42. A balanced chemical equation has the same number of ______ on both sides.43.Curtain symbolized the divide between ________ (东西方). The Kore44.Table sugar is also known as _____.45.What do you call the movement of air?A. WindB. BreezeC. StormD. CurrentA46.I like to practice ______ (瑜伽) to relax and stay healthy.47.How many letters are in the word "elephant"?A. 6B. 7C. 8D. 9答案:B48.My ________ (玩具名称) is a source of inspiration.49.The Sahara is the largest _______ in Africa.50.The _______ (The Enlightenment) emphasized reason and individualism.51.The chemical symbol for germanium is __________.52.What is the name of the longest river in the world?A. AmazonB. NileC. MississippiD. YangtzeB53.What is the name of the famous Egyptian structure built as a tomb?A. ColosseumB. Great WallC. PyramidD. Taj MahalC54.He is a firefighter, ______ (他是一名消防员), responding to emergencies.55.Which day comes after Friday?A. MondayB. SaturdayC. SundayD. ThursdayB56.The first human-made object to land on the moon was _______.57.What is the fastest land animal?A. ElephantB. CheetahC. HorseD. KangarooB58.The ______ teaches us about scientific discoveries.59.How many bones are in a child's body?A. 206B. 205C. 300D. 25060.What is the capital of Greece?A. AthensB. ThessalonikiC. CreteD. Rhodes61. A __________ is a substance that can conduct electricity when dissolved in water.62.The __________ is a major geographical region in Africa. (撒哈拉沙漠)63.The _____ (营养) from the soil is vital for growth.64.The teacher gives us _____ for homework. (assignments)65.The ice is very ___. (slippery)66. A hamster's cheeks can hold a lot of ______ (食物).67.My favorite game is ________ (视频游戏) on the computer.68.The water is ________ in the lake.69.What is the name of the device we use to listen to music?A. RadioB. TelevisionC. ComputerD. PhoneAA. CombB. ToothbrushC. TowelD. SpoonB71.What is 7 + 8?A. 16B. 15C. 14D. 13A72.The ______ (蓝鲸) is known to be the largest animal ever.73. A frog's legs help it swim and ______ (跳).74.I enjoy going to ______ with my family.75.We have a _____ (活动) this weekend.76.The capital of Sri Lanka is __________.77.What is the opposite of 'happy'?A. SadB. ExcitedC. AngryD. Joyful78. A _______ is a measure of the amount of solute in a solution.79.The ________ (地理学) is fascinating to study.80.My brother loves __________ (学习新技能).81.In the spring, I see many ______ (蝴蝶).82.The children are ___ a game. (playing)83.The ____ is a small rodent that likes to nibble on seeds.84. A ______ (松鼠) stores nuts for winter.85.What do farmers grow?A. BooksB. CropsC. CarsD. ClothesB86.The Earth's atmosphere is made up of different gases, primarily ______.87.Which season comes after spring?A. WinterB. SummerC. FallD. Autumn88.Which shape has three sides?A. SquareB. CircleC. TriangleD. RectangleCA. HatB. ShoesC. GlovesD. ScarfB90.They are going to ________ the zoo.91.The _____ (袋鼠) carries its baby in a pouch.92. A _______ is a solution that cannot dissolve any more solute.93.Which animal is known for its ability to change color?A. ChameleonB. EagleC. SharkD. PenguinA Chameleon94.My ________ (玩具名称) is a celebration of fun.95.The first man on the moon was __________ (尼尔·阿姆斯特朗).96.What do we call a baby llama?A. CalfB. FoalC. CriaD. KidC Cria97.Which animal is known for its ability to hop?A. FrogB. DogC. CatD. FishA98.The chemical formula for hydrochloric acid is ________.99.We will _______ (join) the club.100.What do we call the process of making a choice?A. Decision-makingB. PlanningC. OrganizingD. ArrangingA。
笛卡尔的本体论之争首先周一公布2001年6月18日;实质性修改太阳2006年10月15日笛卡尔的本体论(或先验)的论点,既是哲学的一个最迷人,他的理解方面的不足。
论据与魅力源于努力证明神的存在,从简单的处所,但功能强大。
存在是产生立即从清晰和明确的想法是一个无比完美。
讽刺的是,简单的说法也产生了一些误读,加剧了部分由笛卡尔没有一套单一版本。
该声明的论点主要出现在第五沉思。
这种说法因果来得早在接踵而至的一个神的存在,沉思在第三,不同的证据提出问题的两项之间的秩序和关系。
重复笛卡尔哲学原理,包括本体论争论的几个文本等中央。
他还辩解首先由一些主要的知识分子,他在一天,严厉打击反对第二次回复,和第五。
笛卡尔不是第一位哲学家,制订一个本体论的论点。
一个早期版本的说法已大力安瑟伦辩护圣在11世纪,然后圣托马斯阿奎那批评由当代),后来被命名为Gaunilo和尚(安瑟伦(尽管他的言论是针对然而,另一个版本参数)。
阿奎那的批评被视为如此具有破坏性,本体论的争论了数百年死亡。
它的出现,作为一个同时代的惊喜笛卡尔,他应该试图复活它。
虽然他声称没有被证明的熟悉安瑟伦的版本,笛卡尔似乎他自己的工艺参数,以阻止传统的反对。
尽管相似之处,笛卡尔的论点的版本不同于安瑟伦方式在重要的。
后者的版本被认为要从定义这个词的含义“上帝”,上帝是一个被一大于不能设想。
笛卡尔的观点相反,中,主要是基于两个他的哲学的中心原则-天生的思想理论和学说明确的印象和独特的。
他声称不依赖于上帝的任意定义,而是一种天生的想法,其内容是“的。
” 笛卡尔的版本也非常简单。
神的存在是直接从推断的事实,有必要存在的想法是包含在一个清晰而鲜明的超级完美的存在。
事实上,在一些场合,他建议,所谓的本体论“的论调”是不是一个正式的哲学偏见的证据,而是在所有不言而喻的公理直观地掌握了一个心灵的自由。
笛卡尔的本体论的争论相比往往以几何论证,认为有必要存在的想法不能排除再从神比事实平等的角度,其角度,例如两权,可以被排除在一个三角形的想法。
1.【In fact, various emotional states give rise to certain patterns of electrical activity in the facial muscles and in the brain.】事实上,多种的情感状况会在面部肌肉及大脑里产生某种形式的脑电活动。
2. 【Some mountains were formed as a result of these plates crashing into each other and forcing up the rock at the plate margins.】一些山脉是由于板块相互碰撞并且板块边缘向上施压形成的。
3. 【Animal dung enriches the soil by providing nutrients for plant growth. 】动物的粪便通过向土壤提供营养物来促进植物生长。
4. 【For example, in 1875 one biologist pointed out the diversity of butterflies in the Amazon when he mentioned that about 700 species were found within an hour's walk, whereas the total number found on the British islands did not exceed 66, and the whole of Europe supported only 321.】例如,在1987年一位生物学家指出了亚马逊河蝴蝶的多样性,他提到在一小时的步行中就发现700多种蝴蝶,然而在英国的岛屿上发现的不超过66种并且在欧洲也仅仅有321种。
5. 【Even though the fine arts in the twentieth century often treat materials in new ways, the basic difference in attitude of artists in relation to their materials in the fine arts and the applied arts remains relatively constant.】即使20世纪的美术学通常用新的方法来看待原料,但是艺术家在美术及应用美术中对材料态度上的基本不同相对不变6. 【The author presents two theories for a historical phenomenon.】作者针对这个历史现象陈述了两种理论。
2006年第4期外国语总第164期No.4.J u l y 2006 J ou r n al of F o r e i g n L a n g u a g e s GenerM Serial No.164文章编号:1004—5139(2006)04—0047—10中图分类号:H0—06 文献标识码:A 对乔坶斯基语言学科掌性的质疑——回应王强和Chomsky的批评睾石毓智(湖南师范大学外语学院,长沙410081;新加坡国立大学)摘要:王强的文章对我们前文《乔姆斯基语言学的哲学基础及其缺陷:}进行了全面的批评,而且他还把我们前文的内容转述给了乔姆斯基本人,在王文中共引用了12段乔氏针对我们前文的批评意见。
王文为乔姆斯基语言学的科学性进行了全面辩护。
本文从一般的科学研究方法和语言现象的本质特征等角度,对转换生成语言学的科学性提出进一步的质疑,同时又阐释我们的语言能力合成说的根据和意义。
关键词:乔姆斯基;哲学基础;公理化方法;认知语言学;语言能力合成说The Deficiency of Chomskyan Linguistics_____·_·___-___—_A Discuss ion with W A NG Qiang and ChomskysHI Yu.zhi(Hunam Normal University;National University of Sing apore)Ab s tr a ct:T h e article by WANG Qiang,w hic h contains 12 paragraphs of Chom sk y’8c o m m e n t s particularlyp re v i o u s pape r has comp re he nsi ve ly c r it ic i ze d analyses o n generative linguistics.They claim that Chomsk)7all li n·guistics is s ci en ti fi c,s at is fy in g the features of all sciences.This paper argues against them the basis of the me th od- ology of sc i en c e s and o u r unders ta ndi ng the n a t u re of language.In addition,the hypothesis of”compositionality of ling ui st i c compe te nce”is defended,empi rica lly and theoretically.K ey w o rd s:C h o m sk y;p h i l os o p h ic a l f oun dat ion;a xiom ati c meth odo log y;cog nit ive linguistics;compositionality of linguistic compete nce一、引育直接对话。
第一节语言的本质一、语言的普遍特征(Design Features)1.任意性 Arbitratriness:shu 和Tree都能表示“树”这一概念;同样的声音,各国不同的表达方式2.双层结构Duality:语言由声音结构和意义结构组成(the structure ofsounds and meaning)3.多产性productive: 语言可以理解并创造无限数量的新句子,是由双层结构造成的结果(Understand and create unlimited number withsentences)4.移位性 Displacemennt:可以表达许多不在场的东西,如过去的经历、将来可能发生的事情,或者表达根本不存在的东西等5.文化传播性 Cultural Transmission:语言需要后天在特定文化环境中掌握二、语言的功能(Functions of Language)1.传达信息功能 Informative:最主要功能The main function2.人际功能 Interpersonal:人类在社会中建立并维持各自地位的功能establish and maintain their identity3.行事功能 performative:现实应用——判刑、咒语、为船命名等Judge,naming,and curses4.表情功能 Emotive Function:表达强烈情感的语言,如感叹词/句exclamatory expressions5.寒暄功能 Phatic Communion:应酬话phatic language,比如“吃了没?”“天儿真好啊!”等等6.元语言功能 Metalingual Function:用语言来谈论、改变语言本身,如book可以指现实中的书也可以用“book这个词来表达作为语言单位的“书”三、语言学的分支1. 核心语言学 Core linguistic1)语音学 Phonetics:关注语音的产生、传播和接受过程,着重考察人类语言中的单音。
郑丹,彭西甜,张仙,等. 湖北省不同养殖模式下克氏原螯虾肌肉品质评价[J]. 食品工业科技,2023,44(10):91−97. doi:10.13386/j.issn1002-0306.2022070202ZHENG Dan, PENG Xitian, ZHANG Xian, et al. Comparative Analysis on Muscle Quality of Procambarus clarkii Under Different Aquaculture Models in Hubei Province[J]. Science and Technology of Food Industry, 2023, 44(10): 91−97. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2022070202· 研究与探讨 ·湖北省不同养殖模式下克氏原螯虾肌肉品质评价郑 丹1,2,彭西甜1,2,张 仙1,2,张隽娴1,2,周有祥1,2,彭立军1,2,夏珍珍1,2, *(1.湖北省农业科学院农业质量标准与检测技术研究所,湖北武汉 430064;2.农产品营养品质与安全湖北省重点实验室,湖北武汉 430064)摘 要:本研究选取稻虾共作、池塘养殖、莲虾共作和河流野捕四种模式的克氏原螯虾(Procambarus clarkii )为研究对象,探究不同养殖模式下鲜虾色度、虾肉质构特性、常规营养成分、氨基酸组成与含量的差异。
结果表明:湖北地区四种模式出产的克氏原螯虾肌肉均为优质蛋白质,其中,稻虾共作模式生产的鲜虾表面亮度、虾肉硬度、弹性、回复性和虾肉剪切力均显著高于其他模式(P <0.05),虾肉中组氨酸、总氨基酸和总鲜味氨基酸含量均显著高于其他模式(P <0.05),虾肉蒸煮损失率显著低于池塘养殖和莲虾共作(P <0.05)。
一、根据首字母填写单词(单词拼写)1. He has a lively sense of humor and appears naturally c_____ (feeling sure about your own ability to do things and be successful). (根据英文提示单词拼写)2. The t________ of this play is Othello. (根据首字母单词拼写)3. This treatment is not a_____ in the vast majority of hospitals. (根据首字母单词拼写)二、完成句子4. I have arrived at the conclusion ________.我已经得出结论,她是一个非常聪明的女孩。
5. 人们通常认为经济发展对环境有害。
People often have the belief ________.三、根据所给汉语提示填空6. The problem ______________ (我们如何才能为工程筹这么多钱) is worth careful consideration. (根据汉语提示完成句子)7. ________(毫无疑问,我们应该使用一些环保型产) to do our bit for environmental protection. (根据汉语提示完成句子)8. ________ (毫无疑问) China has made tremendous progress. (根据汉语提示完成句子)四、句型转换9. The careers adviser suggests that people should think carefully before choosing a job. The suggestion is useful. (appositive clause) (句型转换)________________________________________________is useful.10. She made a request. The doctor should be sent for at once.(用同位语从句合并为一句)→________________五、汉译英(整句)(翻译)11. 毫无疑问,小麦的价格将会上涨。
胡壮麟《语言学教程〉名词解释课后答案Define the following terms:1. design feature:are features that define our human languages,such as arbitrariness,duality,c reativity,displacement,cultural transmission,etc.2. function: the use of language tocommunicate,to think ,nguage functions inclucle imfor mative function,interpersonal function,performative function,interpersonal function,performative function,emotive function,phatic communion,recreational function and metalingual function.3. etic: a term in contrast with emic w hich originates from American linguist Pike’s distincti on of phonetics and phonemics.Being etic mans making far too many, as well as behaviously incon sequential,differentiations,just as was ofter the case with phonetic vx.phonemic analysis in li nguistics proper.4. emic: a term in contrast with etic which originates from American linguist Pike’s distincti on of phonetics and phonemics.An emic set of speech acts and events must be one that is validat ed as meaningful via final resource to the native members of a speech communith rather than via qppeal to the investigator’s ingenuith or intuition alone.5.synchronic: a kind of description which takes a fixed instant(usually,but not necessarily,the present),as its point of observation.Most grammars are of this kind.6.diachronic:study of a language is carried through the course of its history.7.prescriptive: the study of a language is carried through the course of its history.8. prescriptive: a kind of linguistic study in which things are prescribed how ought to be,i.e. laying down rules for language use.9.descriptive: a kind of linguistic study in which things are just described.10.arbitrariness: one design feature of human language,which refers to the face that the forms of linguistic signs bear no natural relationship to their meaning.11. duality: one design feature of human language,which refers to the property of having two l evels of are composed of elements of the secondary.level and each of the two levels has its own principles of organization.12. displacement : one design feature of human language,which means human language enable thei r users to symbolize objects,events and concepts which are not present c in time and space,at t he moment of communication.13.phatic communion: one function of human language,which refers to the social interaction of language.14. metalanguage: certain kinds of linguistic signs or terms for the analysis and description of particular studies.15.macrolinguistics: he interacting study between language and language-related disciplines su ch as psychology,sociology,ethnograph,science of law and artificial intelligence etc.Branches of macrolinguistics include psycholinguistics,sociolinguistics,anthropological linguistics,et16. competence: language user’s underlying knowledge about the system of rules.17. performance: the actual use of language in concrete situation.18. langue: the linguistic competence of the speaker.19. parole: the actual phenomena or data of linguistics(utterances).20.Articulatory phonetics: the study of production of speechsounds.21.Coarticulation: a kind of phonetic process in which simultaneous or overlapping articulatio ns are involved..Coarticulation can be further divided into anticipatory coarticulation and per severative coarticulation.22. Voicing: pronouncing a sound (usually a vowel or a voiced consonant) by vibrating the voca l cords.23. Broad and narrow transcription: the use of a simple set of symbols in transcription is called broad transcription;the use of a simple set of symbols in transcription is called bro ad transcription;while,the use of more specific symbols to show more phonetic detail is referre d to as narrow transcription.24. Consonant: are sound segments produced by constricting or obstructing the vocal tra ct at some place to divert,impede,or completely shut off the flow of air in the oral cavity. 25. Phoneme: the abstract element of sound, identified as being distinctive in a partic ular language.26. Allophone:any of the different forms of a phoneme(eg.<th>is an allophone of /t/in E nglish.When /t/occurs in words like step,it is unaspirated<t>.Both<th>and <t>are allophones of the phoneme/t/.27. Vowl:are sound segments produced without such obstruction,so no turbulence of a tot al stopping of the air can be perceived.28. Manner of articulation; in the production of consonants,manner of articulation refe rs to the actual relationship between the articulators and thus the way in which the air passes through certain parts of the vocal tract.29. Place of articulation: in the production of consonants,place of articulation refers to where in the vocal tract there is approximation,narrowing,or the obstruction of air.30. Distinctive features: a term of phonology,i.e.a property which distinguishes one ph oneme from another.31. Complementary distribution: the relation between tow speech sounds that never occur in the same environment.Allophones of the same phoneme are usually in complementary distributio n.32. IPA: the abbreviation of International Phonetic Alphabet,which is devised by the In ternational Phonetic Association in 1888 then it has undergong a number of revisions.IPA is a c omprised system employing symbols of all sources,such as Roman small letters,italics uprighted, obsolete letters,Greek letters,diacritics,etc.33. Suprasegmental:suprasegmental featuresare those aspects of speech that involve more than single sound segments.The principal supra-segmental features aresyllable,stress,tone,,and intonation.34. Suprasegmental:aspects of speech that involve more than single sound segments.The p rinciple suprasegmental features are syllable,stress,tone,and intonation.35. morpheme:the smallest unit of language in terms of relationship between expression a nd content,a unit that cannot be divided into further small units without destroying or drastic ally altering the meaning,whether it is lexical or grammatical.36. compound oly morphemic words which consist wholly of free morphemes,such as clas sroom,blackboard,snowwhite,etc.37. inflection: the manifestation of grammatical relationship through the addition of in flectional affixes,such as number,person,finiteness,aspect and case,which do not change the gra mmatical class of the stems to which they are attached.38. affix: the collective term for the type of formative that can be used only when added to another morpheme(the root or stem).39. derivation: different from compounds,derivation shows the relation between roots and affixes.40. root: the base from of a word that cannot further be analyzed without total lass of identity.41. allomorph:; any of the different form of a morpheme.For example,in English the plura l mortheme is but it is pronounced differently in different environments as/s/in cats,as/z/ in dogs and as/iz/ in classes.So/s/,/z/,and /iz/ are all allomorphs of the plural morpheme.42. Stem: any morpheme or combination of morphemes to which an inflectional affix can be added.43. bound morpheme: an element of meaning which is structurally dependent on the world i t is added to,e.g. the plural morpheme in “dog’s”.44. free morpheme: an element of meaning which takes the form of an independent word.45. lexeme:A separate unit of meaning,usually in the form of a word(e.g.”dog in the man ger”)46. lexicon: a list of all the words in a language assigned to various lexical categorie s and provided with semantic interpretation.47. grammatical word: word expressing grammatical meanings,such conjunction,prepositions, articles and pronouns.48. lexical word: word having lexical meanings,that is ,those which refer to substance,a ction and quality,such as nouns,verbs,adjectives,and verbs.49. open-class: a word whose membership is in principle infinite or unlimited,such as no uns,verbs,adjectives,and many adverbs.50. blending: a relatively complex form of compounding,in which two words are blended by joining the initial part of the first word and the final part of the second word,or by joining the initial parts of the two words.51. loanvoord: a process in which both form and meaning are borrowed with only a slight adaptation,in some cases,to eh phonological system of the new language that they enter.52. loanblend: a process in which part of the form is native and part is borrowed, but t he meaning is fully borrowed.53. leanshift: a process in which the meaning is borrowed,but the form is native.54. acronym: is made up form the first letters of the name of an organization,which hasa heavily modified headword.55. loss: the disappearance of the very sound as a morpheme in the phonological system.56. back-formation: an abnormal type of word-formation where a shorter word is derived b y deleting an imagined affix from a long form already in the language.57. assimilation: the change of a sound as a result of the influence of an adjacent soun d,which is more specifically called.”contact”or”contiguous”assimilation.58. dissimilation: the influence exercised.By one sound segment upon the articulation of another, so that the sounds become less alike,or different.59. folk etymology: a change in form of a word or phrase,resulting from an incorrect pop ular nation of the origin or meaning of the term or from the influence of more familiar terms m istakenly taken to be analogous60. category:parts of speech and function,such as the classification of words in terms of parts of speech,the identification of terms of parts of speech,the identification of function s of words in term of subject,predicate,etc.61. concord: also known as agreement,is the requirement that the forms of two or more words in a syntactic relationship should agree with each other in terms of some categories.62. syntagmatic relation between one item and others in a sequence,or between elements w hich are all present.63. paradigmatic relation: a relation holding between elements replaceable with each oth er at a particular place in a structure,or between one element present and he others absent. 64. immediate constituent analysis: the analysis of a sentence in terms of its immediate constituents---word groups(or phrases),which are in trun analyzed into the immediate constitue nts of their own,and the process goes on until the ultimate constituents are reached.65. endocentric construction: one construction whose distribution is functionally equiva lent,or approaching equivalence,to one of its constituents,which serves as the centre,or head, of the whole.Hence an endocentric construction is also known as a headed construction.66. exocentric construction: a construction whose distribution is not functionally equiv alent to any to any of its constituents.67. deep structure: the abstract representation of the syntactic properties of a constru ction,i.e.the underlying level of structural relations between its different constituents ,such sa the relation between,the underlying subject and its verb,or a verb and its object.68. surfacte structure: the final stage in the syntactic derivation of a construction,wh ich closely corresponds to the structural organization of a construction people actually produce and receive.69. c-command: one of the similarities,or of the more general features, in these two gov ernment relations,is technically called constituent command,c-command for short.70. government and binding theo ry: it is the fourth period of development Chomsky’s TG Grammar, which consists of X-bar theme: the basis,or the starting point,of the utterance.71. communicative dynamism: the extent to which the sentence element contributes to the development of the communication.72. ideational function: the speaker’s experience of the real world,including the inner world of his own consciousness.73. interpersonal function: the use of language to establish and maintain social relatio ns: for the expression of social roles,which include the communication roles created by languag e itself;and also for getting things done,by means of the interaction between one person and an other..74. textual function: the use of language the provide for making links with itself and w ith features of the situation in which it is used.75. conceptual meaning: the central part of meaning, which contains logical,cognitive,or denotative content.76. denotation: the core sense of a word or a phrade that relates it to phenomena in the real world.77. connotation: a term in a contrast with denotation,meaning the properties of the enti ty a word denotes.78. reference: the use of language to express a propostion,meaning the properties of the entity a word denotes.79. reference: the use of anguage to express a proposition,i.e. to talk about things in context.80. sense: the literal meaning of a word or an expression,independent of situational con text.81. synonymy: is the technical name for the sameness relation.82. complentary antonymy: members of a pair in complementary antonymy are complementary to each field completely,such as male,female,absent.83. gradable antongymy: members of this kind are gradable,such as long:short,big;small,f at;thin,etc.84. converse antonymy: a special kind of antonymy in that memembers of a pair do not co nstitute a positive-negative opposition,such as buy;sell,lend,borrow,above,below,etc.85. relational opposites:converse antonymy in reciprocal social roles,kinship relations, temporal and spatial relations.There are always two entities involved.One presupposes the other. The shorter,better;worse.etc are instances of relational opposites.86. hyponymy: a relation between tow words,in which the meaning of one word(the superord inate)is included in the meaning of another word(the hyponym)87. superordinate: the upper term in hyponymy,i.e.the class name.A superordinate usually has several hyponyms.Under animal,for example,there are cats,dogs,pigs,etc,88. semantic component: a distinguishable element of meaning in a word with two values,e. g<+human>89. compositionality: a principle for sentence analysis, in which the meaning of a sente nce depends on the meanings of the constituent words and the way they are combined.90. selection restriction:semantic restrictions of the noun phrases that a particular le xical item can take,e.g.regret requires a human subject.91. prepositional logic: also known as prepositional calculus or sentential calculus,is the study of the truth conditions for propositions:how the truth of a composite propositions and the connection between them.92. proposition;what is talk about in an utterance,that part of the speech act which has to do with reference.93. predicate logic: also predicate calculus,which studies the internal structure of sim ple.94. assimilation theory: language(sound,word,syntax,etc)change or process by which featu res of one element change to match those of another that precedes or follows.95. cohort theory: theory of the perception of spoken words proposed in the mid-1980s.It saaumes a “recognition lexicon”in which each word is represented by a full and independent”r ecog nistion element”.When the system receives the beginning of a relevant acoustic signal,all elements matching it are fully acticated,and,as more of the signal is received,the system tries to match it independently with each of them,Wherever it fails the element is deactivated;this process continues until only one remains active.96. context effect: this effect help people recognize a word more readily when the reced ing words provide an appropriate context for it.97. frequency effect: describes the additional ease with which a word is accessed due to its more frequent usage in language.98. inference in context: any conclusion drawn from a set of proposition,from something someone has said,and so on.It includes things that,while not following logically,are implied,in an ordinary sense,e.g.in a specific context.99. immediate assumption: the reader is supposed to carry out the progresses required to understand each word and its relationship to previous words in the sentence as soon as that wo rd in encountered.100. language perception:language awareness of things through the physical senses,esp,si ght.101. language comprehension: one of the three strand of psycholinguistic research,which studies the understanding of language.102. language production: a goal-directed activety,in the sense that people speak and wr ite in orde to make friends,influence people,convey information and so on.103. language production: a goal-directed activity,in the sense that people speak and wr ite in order to make friends,influence people,concey information and so on.104. lexical ambiguity:ambiguity explained by reference to lexical meanings:e.g.that of I saw a bat,where a bat might refer to an animal or,among others,stable tennis bat.105. macroproposition:general propositions used to form an overall macrostructure of the story.106. modular:which a assumes that the mind is structuied into separate modules or compon ents,each governed by its own principles and operating independently of others.107. parsing:the task of assigning words to parts of speech with their appropriate accid ents,traditionally e.g.to pupils learning lat in grammar.108. propositions:whatever is seen as expressed by a sentence which makes a statement.It is a property of propositions that they have truth values.109. psycholinguistics: is concerned primarily with investigating the psychological real ity of linguistic structure.Psycholinguistics can be divided into cognitive psycholing uistics (being concerned above all with making inferences about the content of human mind,and experimen tal psycholinguistics(being concerned somehow whth empirical matters,such as speed of response to a particular word).110. psycholinguistic reality: the reality of grammar,etc.as a purported account of stru ctures represented in the mind of a speaker.Often opposed,in discussion of the merits of altern ative grammars,to criteria of simplicity,elegance,and internal consistency.111. schemata in text: packets of stored knowledge in language processing.112. story structure: the way in which various parts of story are arranged or organized. 113. writing process: a series of actions or events that are part of a writing or contin uing developmeng.114. communicative competence: a speaker’s knowledge of the total set of rules,conventi ons,erning the skilled use of language in a society.Distinguished by D.Hymes in the late 1960s from Chomsley’s concept of competence,in the restricted sense of knowledge of a grammar. 115. gender difference: a difference in a speech between men and women is”genden differ ence”116. linguistic determinism: one of the two points in Sapir-Whorf hypothesis,nguag e determines thought.117. linguistic relativity: one of the two points in Spir-Whorf hypotheis,i.e.there’s n o limit to the structural diversity of languages.118. linguistic sexism:many differences between me and women in language use are brought abou t by nothing less than women’s place in society.119. sociolinguistics of language: one of the two things in sociolinguistics,in which we want to look at structural things by paying attention to language use in a social context. 120. sociolinguistics of society;one of the two things in sociolinguistics,in which we t ry to understand sociological things of society by examining linguistic phenomena of a speaking community.121. variationist linguistics: a branch of linguistics,which studies the relationship be tween speakers’social starts and phonological variations.122. performative: an utterance by which a speaker does something does something,as appo sed to a constative,by which makes a statement which may be true or false.123. constative: an utterance by which a speaker expresses a proposition which may be tr ue or false.124. locutionary act: the act of saying something;it’s an act of conveying literal mean ing by means of syntax,lexicon,and ly.,the utterance of a sentence with determina te sense and reference.125. illocutionary act: the act performed in saying something;its force is identical with the speaker’s intention.126. perlocutionary act: the act performed by or resulting from sayin g something,it’s t he consequence of,or the change brought about by the utterance.127. conversational implicature: the extra meaning not contained in the literal utteranc es,underatandable to the listener only when he shares the speaker’s knowledge o r knows why and how he violates intentionally one of the four maxims of the cooperative principle.128. entailment:relation between propositions one of which necessarily follows from the other:e.g.”Mary is running”entails,among other things,”Mary is not standing still”.129. ostensive communication: a complete characterization of communication is that it is ostensive-infer-ential.130. communicative principle of relevance:every act of ostensive communication communica tes the presumption of its own optimal relevance.131. relevance: a property that any utterance,or a proposition that it communicates,must, in the nature of communication,necessarily have.132. Q-principle: one of the two principles in Horn’s scale,i.e.Make your contribution necessary (G.Relation,Quantity2,Manner);Say no more than you must(given Q).133. division of pragmatic labour: the use of a marked crelatively complex and/or expres sion when a corresponding unmarkeda(simpler,less”effortful”)alternate e xpression is available tends to be interpreted as conveying a marked message(one which the unmarked alternative would not or could not have conveyed).134. constraints on Horn scales:the hearer-based o-Principle is a sufficiency condition in the sense that information provided is the most the speaker is able to..135. third-person narrator: of the narrator is not a character in the fictional world,he or she is usually called a third –person narrator.136. I-narrator: the person who tells the story may also be a character in the fictional world of the story,relating the story after the event.137. direct speech: a kind of speech presentation in which the character said in its ful lest form.138. indirect speech: a kind of speech presentation in which the character said in its f ullest form.139. indirect speech: a kind of speech presentation which is an amalgam of direct speech.140. narrator’s repreaentation of speech acts: a minimalist kind of presentation i n whi ch a part of passage can be seen as a summery of a longer piece of discourse,and therefore even more backgruonded than indirect speech representation would be.141. narrator”srepresentation of thought acts: a kind of categories used by novelis ts t o represent the thoughts of their of characters are exactly as that used to present speech acts. For example,,she considered his unpunctuality.142. indirect thought: a kind of categories used by novelist to represent the thoughts o f their characters are exactly as that used to present indirect speech.For example,she thought that he woule be late.143. fee indirect speech: a further category which can occur,which is an amalgam of dire ct speech and indirect speech features.144. na rrator’s representation of thought acts:a kind of the categories used by novelis ts to present the thoughts of therir characters are exactly the same as those used to represent a speech e.g.He spent the day thinking.145. indirect thought: a kind of categories used by novelist to represent the thoughts o f their characters are exactly as that used to present indirect speech.For example,she thought that he would be late.146. fee indirect speech: a further category which can occur,which is an amalgam of dire ct speech and indirect speech features.147. narrator”s representation of thought: the categories used by novelists to present the thoughts of their characters are exactly the same as those used to represent a speech e.g.H e spent the day thinking.148. free indirect thought: the categories used by novelists to represent the thoughts o f their characters are exactly the same as those used to represent a speech,e.g.He was bound to be late.149. direct thought: categories used by novelists to represent the thoughts of their cha racters are exactly the same as those used to represent a speech..150. computer system: the machine itself together with a keyboard,printer,screen,disk dr ives,programs,etc.151. computer literacy: those people who have sufficient knowledge and skill in the use of computers and computer software.152. computer linguistics: a branch of applied liguistics,dealing with computer processi ng of human language.153. Call: computer-assisted language learning(call),refers to the use of a computer in the teaching or learning of a second or foreign language.154. programnded instruction: the use of computers to monitor student progress,to direct students into appropriate lessons,material,etc.155. local area network: are computers linked together by cables in a classroom,lab,or building.They offer teachers a novel approach for creating new activities for students that prov ide more time and experience with target language.156. CD-ROM: computer disk-read only memory allows huge amount of information to be stor ed on one disk with quich access to the information.Students and teachers can access informatio n quickly and efficiently for use in and out of the classroom.157. machine translation: refers to the use of machine(usually computer)to translate tex ts from one language to another.158. concordance: the use of computer to search for a particular word,sequence of words. or perhaps even a part of speech in a text.The computer can also receive all examples of a part icular word,usually in a context,which is a further aid to the linguist.It can also calculate t he number of occurrences of the word so that information on the frequency of the word may be ga thered.159. annotation: if corpora is said to be unannotated-it appears in its existing raw sta te of plain text,whereas annotated corpora has been enhanced with various type of linguistic in formation,160. annotation: if corpora is said to be unannotated—it appears in its existing raw st ate of plain text,whereas annotated corpora has been enhanced with various type of linguistic i nformation.161. informational retrieval: the term conventionally though somewhat inaccurately,appli ed to the type of actrvity discussed in this volume.An information retrieval system does not in for(i.e.change the knowledge of)the user on the subject of his inquiry.it merely informs on the existence(or non-existence)and whereabouts of documents relating to his request.162. document representative: information structure is concerned with exploiting relatio nships,between documents to improve the efficiency and effectiveness of retrieval strategies.It covers specifically a logical organization of information,such as document representatives,for the purpose of information retrieval.163. precision: the proportion of retrieval documents which are relevant.164. recall: the proportion of retrieval documents which are relevant.165. applied linguistics: applications of linguistics to study of second and foreign lan guage learning and teaching,and other areas such as translation,the compiling of dictionaries,e tc166. communicative competence: as defined by Hymes,the knowledge and ability involved in putting language to communicative use.167. syllabus:the planning of course of instruction.It is a description of the cousr con tent,teaching procedures and learning experiences.168. interlanguage:the type of language constructed by second or foreign language learne rs who are still in the process of learning a language,i.e.the language system between the targ et language and the learner’s native language169. transfer: the influence of mother tongue upon the second language.When structures o f the two languages are similar,we can get positive transfer of facilitation;when the two langu ages are different in structures,negative transfer of inference occurs and result in errors. 170. validity: the degree to which a test meansures what it is meant to measure.There ar e four kinds of validity,i.e.content validity,construct validity,empirical valiodity,and face v alidity.171. rebiability: can be defined as consistency.There are two kinds of reliability,i.e.s tability reliability,and equiralence reliability.。
专八语言集锦(05年——14年专八真题及解析归纳)目录1、2005年 (1)2、2006年 (2)3、2007年 (4)4、2008年 (6)5、2009年 (8)6、2010年 (10)7、2011年 (11)8、2012年 (12)9、2013年 (13)10、2014年 (14)11、附加语言学考研题 (15)2005年38.(考查点:main branches of linguistics) Syntax is the study ofA. language functionsB. sentence structuresC. textual organizationD.word formation答案:B。
解析:Syntax is about principles of forming and understanding correct English sentences,是关于形成和理解正确英语句子的原则。
也就是句子结构。
故选择B。
39.(考察点:design features of language) Which of ale following is NOTa distinctive feature of human language?A. ArbitrarinessB. ProductivityC. Cultural transmissionD. Finiteness答案:D。
解析:题问下面四个选项中,哪一个不是人类语言的主要特征?除Finiteness(有限性)外,选项中的其它的三项Arbitrariness(任意性),Productivity(能产性)和Cultural transmission(文化传递性)在语言学概述部分都提到了。
故选择D。
40. (考察点:人物)The speech act theory was first put forward byA. John SearleB. John AustinC. Noam ChomskyD. M.A,K. Halliday答案:B。
从英语名词看语言的有界与无界1. 引言1.1 引言Languages are complex systems of communication that play a crucial role in human society. They are characterized by a combination of structure, rules, and vocabulary that allow individuals to convey their thoughts and ideas to others. One interesting aspect of language is the distinction between bounded and unbounded categories, which has been widely studied in linguistics.The concept of language boundedness refers to the limitations imposed by a finite set of linguistic elements that individuals can use to construct meaningful utterances. This idea suggests that language is composed of discrete units that have clear boundaries and can be categorized into distinct groups. On the other hand, language unboundedness suggests that there are no strict boundaries between different linguistic elements, allowing for greater flexibility and creativity in communication.In the field of English linguistics, the study of nouns provides valuable insights into the bounded and unbounded nature of language. Nouns are a fundamental part of language thatrepresent people, places, things, or concepts. By examining the characteristics of English nouns, researchers can better understand how language categories are structured and how they contribute to communication.The purpose of this paper is to explore the concept of language boundedness through the analysis of English nouns. By examining the specific features of English nouns and categorizing them into bounded and unbounded categories, we can gain a deeper understanding of how language systems are constructed and how they shape our communication abilities. This research aims to contribute to the broader field of linguistics by shedding light on the intricate relationship between language structure and communication processes.1.2 研究背景语言是人类交流和表达思想的工具,而名词作为语言中最基本、最常见的词类之一,在语言中起着至关重要的作用。
Chapter 1 Invitations to linguistics1. Arbitrariness 任意性Language is arbitrary, which means that there is no logical connection between meanings and sounds. A good example is the fact that different sounds are used to refer to the same object in different languages.On the other hand, we should be aware that while language is arbitrary by nature, it is not entirely arbitrary. The best examples are the onomatopoeic words. Besides, some compound words are also not entirely arbitrary.The arbitrary nature of language is a sign of sophistication and it makes it possible for language to have an unlimited source of expressions.2. Duality 二层性Duality refers to the property of having two levels of structures, such that units of the primary level are composed of elements of the secondary level and each of the two levels has its own principles of organization.At the lower or the basic level there is a structure of sounds, which are meaningless by themselves. But the sounds of language can be grouped and regrouped into a large number of units of meaning such as morphemes and words, which are found at the higher level of the system. Then the units at the higher level can be arranged and rearranged into an infinite number of sentences.This duality of structure or double articulation of language enables its users to talk about anything within their knowledge. No animal communication system has duality or even comes near to possessing it.3. Productivity/ Creativity 创造性Productivity/ Creativity means that language is resourceful because of its duality and its recursiveness, which enables human beings to produce and understand an infinitely large number of sentences in our native language, including the novel sentences by use of a finite set of rules. 4. Displacement 移位性Displacement means that human languages enable their users to symbolize objects, events and concepts which are not present (in time and space) at the moment of communication.Human language is, unlike animal communication systems, stimulus-free. Our language enables us to communicate about things that do not exist or do not yet exist.Displacement benefits human beings by giving them the power to handle generalizations and abstractions.5. Cultural transmission 文化传递性While human capacity for language has a genetic basis, the details of any language system are not genetically transmitted, but instead have to be taught and learned. An English speaker and a Chinese speaker are both able to use a language, but they are not mutually intelligible. This shows that language is culturally transmitted. It is passed on from one generation to the next through teaching and learning, rather than by instinct.In contrast, animal call systems are genetically transmitted.6. Interchangeability 互换性Interchangeability refers to the fact that humans can produce and receive messages, and their roles as a speaker and a hearer can be exchanged at ease.Functions of language7. Informative function 信息功能Language is used to tell something, to give information, or to reason things out. The informative function is regarded as the major role of language. Declarative sentences serve this function.8. Interpersonal function 人际功能The interpersonal function is considered as the most important sociological use of language, by which people establish and maintain their status in a society.9. Performative function 施为功能The performative function of language is primarily to change the social status of persons, as in marriage ceremonies, the sentencing of criminals, the blessing of children, the naming of a ship at a launching ceremony, and the cursing of enemies. The kind of language involved in performative verbal acts is usually quite formal and even ritualized.10. Emotive function 感情功能The emotive function of language is one of the most powerful uses of language because it is crucial in changing the emotional status of an audience for or against someone or something. This function is also discussed under the term expressive function. The expressive function can often be entirely personal and totally without any implication of communication to others.11. Phatic function 寒暄功能The phatic function enables people to establish and maintain good interpersonal relationships with others without involving any factual content.12. Recreational function 娱乐功能The recreational function refers to the use of language for the sheer joy of using it, such as a baby’s babbling or a chanter’s chanting.13. Metalingual function 元语言功能The metalingual function refers to the fact that our language can be used to talk about itself. This makes the language infinitely self-reflexive. (自我反身性)14. Anthropological linguistics 人类语言学Anthropological linguistics is a branch of linguistics which studies the relationship between language and culture in a community, e.g. its traditions, beliefs, and family structure.Important Distinctions in Linguistics15. Descriptive vs. Prescriptive 描写式vs. 规定式Don’t say X. ---Prescriptive commandPeople don’t say X. ---Descriptive statementThe distinction lies in prescribing how things ought to be and describing how things are.To say that linguistics is a descriptive science means that linguists tried to discover and record the rules to which the members of a language community actually conform and does not seek to impose upon them other rules, or norms, of correctness.16. Synchronic vs. Diachronic 共时vs. 历时Language can be studied at a particular point in time or over time. The description of a language at some point of time in history is a synchronic study; the description of a language as it changes through time is a diachronic study. A diachronic study of a language is a historical study; it studies the historical development of language over a period of time.17. Langue vs. Parole 语言vs. 言语The distinction between langue and parole was made by the Swiss linguist F. de Saussure in theearly 20th century. Saussure distinguished the linguistic competence of the speaker and the actual phenomena or data of linguistics (utterances) as langue and parole.Langue refers to the abstract linguistic system shared by all the members of a speech community, and parole refers to the realization of langue in actual use. Langue is relatively stable while parole varies from person to person, and from situation to situation.18. Competence vs. Performance 语言能力vs. 语言应用Similar to Saussure’s distinction between langue and parole is the distinction between competence and performance, which was proposed by the American linguist N. Chomsky in the late 1950s.A language user’s underlying knowledge about the system of rules is called his linguistic competence. And the performance refers to the actual use of language in concrete situations.19. Speech vs. WritingSpeech and writing are two major media of communication. Linguists regard the spoken language as primary, not the written. From the point of view of linguistic evolution, speech is prior to writing. Even in today’s world, there are still many languages that can only be spoken but not written. So language is primarily vocal.24. Syntagmatic vs. Paradigmatic 组合(横向)纵向vs. 选择关系In doing linguistic inquiry the linguist is concerned with two major types of relationship. One is syntagmatic relation, which refers to the relations between units which combine to form sentences. The other is paradigmatic relation, which refers to oppositions which produce distinct and alternative terms.25. Etic vs. Emic 唯素的vs. 唯位的Etic refers to the linguistic units containing “-etic”, for example, phonetic, which are used to describe linguistic facts in detail without distinctive features, and are first used to describe sounds. Emic refers to the linguistic units containing “-emic”, for example, phonemic, morphemic, which are used to describe linguistic rules with distinctive features and are first used to describe phonemes.26. Traditional grammar vs. Modern grammar 传统语法vs. 现代语法Traditional grammar can be considered as prescriptive; it is based on “high” (religious, literary) written language. It sets models for language users to follow. But modern grammar is descriptive; its investigations are based on authentic and mainly spoken language data.27. Linguistic potential vs. Actual linguistic behavior 语言潜势vs. 实际语言行为Halliday thinks that with language, there is a wide range of things that a speaker can do in the culture he is in. The set of possibility for “doing” is termed linguistic potential. What a speaker actually says in a particular occasion to a particular individual is what he has selected from the many possible things he could have said. This actual selection of things from what one could have is termed actual linguistic behavior.Chapter 2 Phonetics and Phonology1. Phonetics 语音学Phonetics is the study of how speech sounds are produced, transmitted, and perceived. It is divided into three main areas: articulatory phonetics, acoustic phonetics and perceptual (auditory) phonetics.2. Articulatory phonetics 发音语音学Articulatory phonetics is the study of the production of speech sounds.3. Acoustic phonetics 声学语音学Acoustic phonetics is the study of the physical properties of speech sounds.4. Perceptual (auditory) phonetics 感知语音学/ 听觉语音学Perceptual (auditory) phonetics is concerned with the perception of speech sounds.5. Phonology 音系学Phonology is the study of the sound patterns and sound systems of languages. It aims to “discover the principles that govern the way sounds are organized in languages, and to explain the variations that occur.”6. Speech organs/ vocal organs 发音器官Speech organs/ vocal organs are those parts of the human body involved in the production of speech, including lungs, the trachea (or windpipe), the throat, the nose, and the mouth.For most phonetic purposes, it is sufficient to say that the vocal folds are either (a) apart, (b) close together, or (c) totally closed.声带只需要三种状态:分离,贴近,紧闭。
经典名篇共享MOLECULAR_STRUCTURE_OF_NUCLEIC_ACIDSWatson 和 Crick 发现有关DNA双螺旋结构的原始论⽂,发表于1953年4⽉2⽇的Nature杂志。
MOLECULAR STRUCTURE OF NUCLEIC ACIDSA Structure for Deoxyribose Nucleic AcidWe wish to suggest a structure for the salt of deoxyribose nucleic acid (D.N.A.). This structure has novel features which are of considerable biological interest.A structure for nucleic acid has already been proposed by Pauling and Corey. They kindly made their manuscript available to us in advance of publication. Their model consists of three inter-twined chains, with the phosphates near the fibre axis, and the bases on the outside. In our opinion, this structure is unsatisfactory for two reasons: (1) We believe that the material which gives the X-ray diagrams is the salt, not the free acid. Without the acidic hydrogen atoms it is not clear what forces would hold the structure together, especially as the negatively charged phosphates near the axis will repel each other. (2) Some of the van der Waals distances appear to be too small.Another three-chain structure has also been suggested by Fraser (in the press). In his model the phosphates are on the outside and the bases on the inside, linked together by hydrogen bonds. This structure as described is rather ill-defined, and for this reason we shall not comment on it.We wish to put forward a radically different structure for the salt of deoxyribose nucleic acid. This structure has two helical chains each coiled round the same axis (see diagram). We have made the usual chemical assumptions, namely, that each chain consists of phosphate diester groups joining β-D-deoxy-ribofuranose residues with 3',5'-linkages. The two chains (but not their bases) are related by a dyad perpendicular to the fibre axis. Both chains follow right-handed helices, but owing to the dyad the sequences of the atoms in the two chains run in opposite directions,Each chain loosely resembles Furberg's model No. 1; that is, the bases are on the inside of the helix and the phosphates on the outside. The configuration of the sugar and the atoms near it is close to Furberg's 'standard configuration', the sugar being roughly perpendicular to the attached base. There is a residue on each chain every 3.4 A. in thez-direction. We have assumed an angle of 36~ betweenadjacent residues in the same chain, so that the structure repeats after 10 residues on each chain, that is, after 34 A. The distance of a phosphorus atom from the fibre axis is 10 A. As the phosphates are on the outside, cations have easy access to them. The structure is an open one, and its water content is rather high. At lower water contents we would expect the bases to tilt so that the structure could become more compact.This figure is purely diagrammatic, The two ribbons symbolize thetwo phosphate--sugar chains, and the horizontal rods the pairs of bases holding the chains together. The vertical line marksthe fibre axis.The novel feature of the structure is the manner in which the two chains are held together by the purine and pyrimidine bases. The planes of the bases are perpendicular to the fibre axis. They are joined together in pairs, a single base from one chain being hydrogen~bonded to a single basefrom the other chain, so that the two lie side by side with identical z-co-ordinates. One of the pair must be a purine and the other a pyrimidine for bonding to occur. The hydrogen bonds are made as follows: purine position 1 to pyrimidine position 1; purine position 6 to pyrimidine position 6.If it is assumed that the bases only occur in the structure in the most plausible tautomeric forms (that is, with the keto rather than the enol configurations) it is found that only specific pairs ofbases can bond together. These pairs are: adenine (purine) with thymine (pyrimidine), and guanine (purine) with cytosine (pyrimidine).In other words, if an adenine forms one member of a pair, on either chain, then on these assumptions the other member must be thymine; similarly for guanine and cytosine. The sequence of bases on a single chain does not appear to be restricted in any way. However, if only specific pairs of bases can be formed, it follows that if the sequence of bases on one chain is given, then the sequence on the other chain is automatically determined.It has been found experimentally that the ratio of the amounts of adenine to thymine, and the ratio of guanine to cytosine, are always very close to unity for deoxyribose nucleic acid.It is probably impossible to build this structure with a ribose sugar in place of the deoxyribose, as the extra oxygen atom would make too close a van der Waals contact.The previously published X-ray data on deoxyribose nucleic acid are insufficient for a rigorous test of our structure. So far as we can tell, it is roughly compatible with the experimental data, but it must be regarded as unproved until it has been checked against more exact results. Some of these are given in the following, communications. We were not aware of the details of the results presented there when we devised our structure, which rests mainly though not entirely on published experimental data and stereochemical arguments.It has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for the genetic material. Full details of the structure, including the conditions assumed in building it, together with a set of co-ordinates for the atoms, will be published elsewhere.We are much indebted to Dr. Jerry Donohue for constant advice and criticism, especially on interatomic distances. We have also been stimulated by a knowledge of the general nature of the unpublished experimental results and ideas of Dr. M. H.F. Wilkins, Dr. R. E. Franklin and their co-workers at King's College, London. One of us (J. D. W.) has been aided by a fellowship from the National Foundation for Infantile Paralysis.J. D. WATSONF. H. C. CRICKMedical Research Council Unit for the Study of the Molecular Structure of Biological Systems, Cavendish Laboratory, Cambridge.April 2. 1953。
Chinese conversational style is unique and reflects the cultural values and social norms of the country.Here are some key characteristics of Chinese conversation:1.Indirectness:Chinese people often prefer to express their opinions and feelings in an indirect manner.This is to avoid potential conflicts and to maintain harmony in the conversation.2.Politeness and Respect:Showing respect to elders and superiors is a fundamental aspect of Chinese culture.This is reflected in the language used during conversations, where honorifics and polite expressions are common.e of Metaphors and Idioms:Chinese conversations often include the use of metaphors and idioms,which are rich in cultural significance and can convey complex ideas succinctly.4.Contextual Understanding:The Chinese language relies heavily on context to understand the meaning of words and phrases.This can sometimes make conversations challenging for nonnative speakers,as the literal translation may not convey the intended meaning.5.Emphasis on Relationships Guanxi:Building and maintaining relationships is an important part of Chinese society.Conversations often revolve around establishing and strengthening these relationships.6.Avoidance of Direct Rejection:To maintain face,Chinese people may avoid giving a direct no in response to a request.Instead,they might use phrases that imply refusal without directly stating it.7.Nonverbal Communication:Body language,facial expressions,and tone of voice playa significant role in Chinese conversations.Understanding these nonverbal cues can provide deeper insight into the conversation.8.Hierarchical Structure:Conversations often reflect the hierarchical structure of Chinese society,with respect and deference shown to those in higher positions.e of Rhetorical Questions:Rhetorical questions are used not only for emphasis but also as a way to indirectly suggest an opinion or course of action.10.Saving Face:The concept of face is crucial in Chinese culture.Conversations are often conducted in a way that allows all parties to save face,even if disagreements arise.11.Pace and Timing:The pace of a conversation can vary,and there may be pauses or silences that are used to gather thoughts or to subtly communicate a point.e of Humor:Humor is often used to diffuse tension,to build rapport,or to make a point in a nonconfrontational way.Understanding these characteristics can help in navigating and appreciating the nuances of Chinese conversations,which are deeply rooted in the countrys rich history and cultural heritage.。
of a speech community2.arbitrariness, duality, creativity, displacement, cultural transmission, etc.not necessarily, the present), as its point of observation. Most grammars are of this kindface that the forms of linguistic signs bear nonatural relationshiptotheir meaning.property of havingtwolevels of are composedof elements of the secondary. Level and each of the two levels has its own principles of organization.language enable their users to symbolize objects,events and concepts which are not present c in time and space, at the moment of communication.language user’s underlying knowledge about the system ofrules.history.ought to be, . laying down rules for language use.in a particular language.adjacent sound, which is more specifically called.”contact”or”contiguous”assimilation.properties of the entity a word denotes.properties of the entity a word denotes.in context.situational context.hypothesis, . language determines thought.1the type of language constructed by second or foreignlanguage learners who are still in the process of learning a language,language system between the target language and the learner’s native language.When structures of the two languages are similar, we can get positive transfer of facilitation; when the twolanguages are different in structures, negative transfer ofinference occurs and results in errors.something, it’s the consequence of, or the change brought about by the utterance.20.word (the superordinate) is included in the meaning of another word(the hyponym)allophone of /t/in English. When /t/occurs in words like step, it is unaspirated<t>.Both<Th>and <t>are allophones of the phoneme/t/.and consequence of unsuccessful languageor expressing something aloud the simple utterance of a few platitudes uninterrupted chain of spoken or written languagewhich occurs when an L 1 patter is different from the counterpart pattern of thetarget language.sentence, composedof a subject andpredicate, is a basic unit for meaninganalysisis called predication, which is the abstraction of the meaning of a sentence“hang together”; to theresources within language that help relate ideas and information and make linksbetween different parts of a textunits.to be more specific,the meaning with which linguistists are concerned is defined as linguistic semantics语言学考试范围1. Does the traffic light have duality Explain the reasons.2. IC analyzes the sentence structure with brackets or a tree diagram.Lovely Jane ran away.3. What are Leech’s seven types of meaningConceptual meaning. Connotative meaning. Social meaning.Affective meaning. Reflected meaning. Collocative meaning.Thematic meaning4. What are the differences between modern linguistics and traditional grammar5. Explain surface structure and deep structure.6. What are the major views concerning the study of meaning7. What are the four maxims of the CP8. Analyze the structure of a syllable. Give one example to illustrate.9. Explain the two terms s“ense” and “reference” and what is their relationship10. What are the differences between errors and mistakesWhat are the major views concerning the study of meaningWhat are the major views concerning the study of meaning(1) The naming theory 命名论----One of the oldest notions converningmeanings, andalsoa very primitive one,was the naming theory proposed by the ancient Greek scholar Plato. According to this theory, the linguistic forms or symbols, in other words, the words used in alanguage are taken to be labels of the objects they stand for. So words arejustnames or label for things. 命名论是最原始的语义理论,该理论是把词看作所指事物的名称。