共查询到19条相似文献，搜索用时 618 毫秒
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高增霞 《湖南师范大学社会科学学报》2015,(4)
细致考察“伸手”构成的连动结构,发现在序列动作连动结构中,V1往往决定了V2的语义范畴,而且两个动词的体特征是相互制约的。从这个个案可以看出,汉语的序列动作连动结构表达的事件具有单一事件的特性,连动在汉语语法系统中并非仅仅是一种结构类型,而是一种语法手段,是一种语言机制。 相似文献
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邓加聪 《福建师大福清分校学报》2012,(2):41-44
选取20条线粒体和10条叶绿体intron RNA domain（内含子RNA区域）为I1的Ⅱ型内含子一级序列进行序列比对和统计规律分析,结果表明：线粒体和叶绿体Ⅱ型内含子一级序列的长度总体来说基本一致,两者嘌呤的含量明显高于嘧啶的含量。统计两者的Ⅱ型内含子一级序列的保守序列片段的规律,并预测出Ⅱ型内含子的二级结构。 相似文献
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应用组合计数技巧研究了一类RNA二级结构的计数问题，给出了序列[1，n]的二级结构数和序列[1，n]上恰有k个基对的二级结构数的精确表达式． 相似文献
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传统语法和结构语法各领风骚数年,分别在各自的时代处于主导和独尊的地位。传统语法重视意义、重视书面语、重视规定、重视分析、明确区分语法现象和词汇现象、明确区分词法和句法,重视历时。结构语法是语法研究中的一场革命。结构语法提供了最完善的方法,它所取得的成就使其得到了最广泛的传播。它使语言学达到了科学的水平,并为其他人文学科提供了一种方法明晰而又严密的语言学理论,一种揭示和论证问题的方法。 相似文献
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文体学视角下L2英语表征与话语得体 总被引：1，自引：0，他引：1
于善志 《宁波大学学报(教育科学版)》2009,31(2)
在论述语场理论与文体特征关系的基础上,提出英语学习中语法得体和语用得体的两个层次.语法得体是语用得体的条件,凡是达到语用得体的话语一般都是语法得体的.语用得体的话语在语境中可以是显性结构也可以是隐性结构.隐含结构的高低取决于语篇命题加工的需要. 相似文献
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Halliday的系统功能语法是一种以语篇为重要研究对象的分析工具.对单一语篇的分析一直是系统功能语法应用研究的传统.本文运用系统功能语法对许渊冲先生版英译唐诗<凉州词>进行详细分析,从篇章结构、及物性结构和语气结构等角度阐释和评价许渊冲老先生的这篇翻译杰作. 相似文献
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拥有结构表达拥有关系。世界语言拥有结构的语法化主要有七种源结构:活动结构、处所结构、伴随结构、存在结构、话题结构、来源结构和等同结构。这些结构向拥有结构语法化的语义动因为汉语活动结构>拥有结构的语法化、拥有关系—存在结构和存在关系—拥有结构之间的错配等现象从语法化的角度提供了解释。 相似文献
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The focus of this Research Experience for Undergraduates (REU) project was on RNA secondary structure prediction by using a lattice walk approach. The lattice walk approach is a combinatorial and computational biology method used to enumerate possible secondary structures and predict RNA secondary structure from RNA sequences. The method uses discrete mathematical techniques and identifies specified base pairs as parameters. The goal of the REU was to introduce upper-level undergraduate students to the principles and challenges of interdisciplinary research in molecular biology and discrete mathematics. At the beginning of the project, students from the biology and mathematics departments of a mid-sized university received instruction on the role of secondary structure in the function of eukaryotic RNAs and RNA viruses, RNA related to combinatorics, and the National Center for Biotechnology Information resources. The student research projects focused on RNA secondary structure prediction on a regulatory region of the yellow fever virus RNA genome and on an untranslated region of an mRNA of a gene associated with the neurological disorder epilepsy. At the end of the project, the REU students gave poster and oral presentations, and they submitted written final project reports to the program director. The outcome of the REU was that the students gained transferable knowledge and skills in bioinformatics and an awareness of the applications of discrete mathematics to biological research problems. 相似文献
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ITS2是真核生物rRNA基因的重要组成部分,在rRNA基因加工成熟过程中起到至关重要的作用．ITS2的高级结构相对保守,对其序列进化表现一定程度的限制作用．ITS2保守的结构域和二级结构为广范围遗传距离排序提供了重要的技术保障．正因为如此,ITS2在高级阶元系统发育关系分析中展示出诱人的前景． 相似文献
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Twenty‐four primary schools were randomly selected from all those listed in a local education authority in the West Midlands of England. Heads or deputy headteachers of 21 of these schools were interviewed using a structured interview schedule very similar to the one used for a recent survey of secondary schools. Data were obtained about the general rule structures of the schools and the system of sanctions and rewards used to maintain them. The findings were then compared with those from the secondary survey. Primary schools were less likely than secondary schools to have written rule structures but most were in the process of producing them in response to new pressures. It was more common for all the teachers in the primary school to be considered responsible for seeing that rules were kept. Generally, primary school headteachers identified fewer sanctions being used to uphold their rules than in secondary schools. The number of rewards used in both types of school was about equal. Comment is made on the difference between sanctions and rewards identified as being used in schools and some observed classroom practice. 相似文献
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芬兰高中教育的成功已引起世人的瞩目,其原因既包括长远的教育政策、健全的教育法制法规和独特的教育信任文化等宏观层面因素,也包括灵活的教学方式、高质量的师资队伍、完善的指导咨询体系和校际合作机制等微观层面因素。 相似文献
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This paper investigates the relationship between ability to detect changes in prosody and reading performance in Spanish. Participants were children aged 7–8 years. Their tasks consisted of reading words, reading non‐words, stressing non‐words and reproducing sequences of two, three or four non‐words by pressing the corresponding keys on the computer keyboard. Non‐word sequences were constructed with minimal non‐word pairs differing in a single phoneme (/kúpi/ ‐ /kúti/) or in the stress pattern (/mípa/ ‐ /mipá/). Results showed that performance on phoneme contrast sequences (e.g. /kúpi/ ‐ /kúti/) predicted word reading. In contrast, performance on stress contrast sequences (e.g. /mípa/ ‐ /mipá/) predicted non‐word reading, but only when two‐non‐word sequences were analysed. This suggests that stress sensitivity may be one of the factors related to reading fluency as most errors at reading non‐words consisted of false starts and pauses between syllables. Results also showed that stress sensitivity (scored in two non‐word sequences) predicted stress assignment, and that knowledge of stress rules predicted both word and non‐word reading. This suggests that stress sensitivity may help in learning stress rules, and that knowledge of stress rules is relevant for reading. 相似文献
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INTRODUCTIONCucumbermosaicvirus (CMV) ,thetypespeciesofthegenusCucumovirusoffamilyBro moviridae,isanisometricviruswithatripartitesingle strandedRNAgenomeofpositivepolari ty.CMVhasaparticularlywidehostrange ,in fectingmorethan 80 0speciesinover 70familieso… 相似文献
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《校园英语(教研版)》2015,(9):226-227
Syllable is the hierarchic natural feature of a language,and there are rules of the phonological sequences of the syllabic structure.Based on the Sonority Sequencing Principle(SSP),this paper will try to discuss and analyze phonological sequences of the syllabic structure of English mutes. 相似文献
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武术套路运动的供能特点及训练 总被引：4，自引：0，他引：4
武术套路运动供能主要以ＡＴＰ－ＣＰ系统供能为主,辅以ＨＬ能系统,训练中,若欲提高ＡＴＰ－ＣＰ系统供能能力,应遵循极限强度、短时间、多次重复,防止ＨＬ堆积的原则喏 欲提高ＨＬ能系统供能能力,则应遵循次极限强度,造成ＨＬ堆积的原则。 相似文献
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