学科分类
/ 25
500 个结果
  • 简介:and evaluating the success of a particular strategy. They have an executive function. In O’Malley and Chamot framework of learning strategies,Oxford’s taxonomy fails to make a distinction between strategies directed at learning the L2 and those directed at using it (Ellis). The last problem is that compensation strategies are considered as a direct type of learning strategies rather than one type of production strategies,cognitive and social/affective. They grounded the study of learning strategies within the information-processing model of learning developed by Anderson. Metacognitive strategies involve consciously directing one’s efforts into the learning task. These strategies are higher order executive skills that may entail planning learning

  • 标签:
  • 简介:Peerrevision,asupplementarystrategytoteacherrevisionofwritinginL2classroom,makespassivereceiversofteacherrevisionbecomeactiverevisers,enablingstudentstoinvolveinmoremotivatedlanguagelearning.Benefitsofpeerrevisionanditsimplicationsforteacherandstudentrolesarediscussed.Thisarticlealsotentativelyanalyzeswaysofpreparingstudentsforeffectivepeerrevision.

  • 标签:
  • 简介:identification and classification of learning strategy. The problems are reviewed concerning the definition and classification of learning strategies and then the paper tentatively introduces Cohen’s approach to defining learning strategies in terms of prototypicality of features of learning strategies.,Cohen’s attempt to describe the prototypicality of strategies is a step forward concerning defining learning strategies. It might reflect the nature of learning strategies to a large extent because the answers to the questionnaire come from strategy experts. It is true that some problems still exist. For example,all-or-nothing feature but in terms of how far along a continuum a feature could possibly go before it stopped being descriptive of a strategy. This is an approach of defining learning strategies in terms of how prototypical the feature was. These features as follows are arranged in a descending order of agreement

  • 标签:
  • 简介:LetAbead×drealexpansivematrix.AnA-dilationParsevalframewaveletisafunctionψ∈L2(Rd),suchthattheset{|detA|n/2ψ(Ant-l):n∈Z,l∈Zd}formsaParsevalframeforL2(R~d).AmeasurablefunctionfiscalledanA-dilationParsevalframewaveletmultiplieriftheinverseFouriertransformoff■isanA-dilationParsevalframewaveletwheneverψisanA-dilationParsevalframewavelet,where■denotestheFouriertransformofψ.Inthispaper,theauthorscompletelycharacterizeallA-dilationParsevalframewaveletmultipliersforanyintegralexpansivematrixAwith|det(A)|=2.Asanapplication,thepath-connectivityofthesetofallA-dilationParsevalframewaveletswithaframeMRAinL2(Rd)isdiscussed.

  • 标签: 框架 小波 乘数 傅立叶逆变换 可测函数 傅立叶变换
  • 简介:本文通过述评国外近20年来对L2写作中语言转换的研究,讨论了目前在L2写作研究中对语言转换的界定,语言转换目的的认识,影响语言转换的因素和研究语言转换的意义,以及目前该研究领域中存在的术语界定不统一性,研究方法单一性,以及理论研究与教学实践的脱节等问题。文章最后对未来研究提出几点建议。

  • 标签: 语码转换 语言转换 L2写作
  • 简介:柳媚电话打过来时.郎潇正和大远、四得喝得欢快。对郎潇来说,能喝得欢快很难得,因为大多时候,他对喝酒是排斥的,除了因为一喝就醉,一醉就吐造成的身体不舒服,还因为酒醒后发自内心的羞愧——年龄一日日增长,事业半死不活,还不把时间用到有效的事上,反而沉湎于酒桌。这是年轻时便有雄心壮志的郎潇排斥酒的主要原因。

  • 标签: 小说 文学 文学作品 现代文学
  • 简介:.Thesingle2dilationorthogonalwaveletmultipliersinonedimensionalcaseandsingleA-dilation(whereAisanyexpansivematrixwithintegerentriesand|detA|=2)waveletmultipliersinhighdimensionalcasewerecompletelycharacterizedbytheWutamConsortium(1998)andZ.Y.Li,etal.(2010).Butthereexistnomoreresultsonorthogonalmultivariatewaveletmatrixmultiplierscorrespondingintegerexpansivedilationmatrixwiththeabsolutevalueofdeterminantnot2inL2(R2).Inthispaper,wechoose2I2=(2002)asthedilationmatrixandconsiderthe2I2-dilationorthogonalmultivariatewaveletY={y1,y2,y3},(whichiscalledadyadicbivariatewavelet)multipliers.Wecallthe3×3matrix-valuedfunctionA(s)=[fi,j(s)]3×3,wherefi,jaremeasurablefunctions,adyadicbivariatematrixFourierwaveletmultiplieriftheinverseFouriertransformofA(s)(cy1(s),cy2(s),cy3(s))?=(bg1(s),bg2(s),bg3(s))?isadyadicbivariatewaveletwhenever(y1,y2,y3)isanydyadicbivariatewavelet.Wegivesomeconditionsfordyadicmatrixbivariatewaveletmultipliers.TheresultsextendedthatofZ.Y.LiandX.L.Shi(2011).Asanapplication,weconstructsomeusefuldyadicbivariatewaveletsbyusingdyadicFouriermatrixwaveletmultipliersandusethemtoimagedenoising.

  • 标签: Multi-wavelets FOURIER multipliers image denoising.
  • 简介:Readingisanimportantchannelforstudentstoreceivesecondlanguage(L2)input,butunmindfulordistractedreadingofferslittletoL2acquisition,whichhelpstoexplainwhylearnersoftencomplainabouttheirminimalprogressaftertakingextensivereadingcourses.

  • 标签: 英语 阅读 理解 基础教育
  • 简介:ThiscriticalreviewassessesEliHinkel’sresearchpaperTheEffectsofEssayTopicsonModalVerbUsesinL1andL2AcademicWritingintermsofbothwritingprocessandwritingproduct.Itacknowledgesthemeritsaswellastheflawsofthepaperandconcludeswithfuturestudysuggestions.

  • 标签: 英语学习 学习方法 阅读知识 阅读材料
  • 简介:12月6日,在深港通一周年之际,深圳证券交易所(以下简称深交所)联合中国创盈市场服务有限公司、深圳证券信息有限公司、深圳证券通信有限公司在香港举办了深交所L2行情香港节点启动会议。深交所总工程师喻华丽、

  • 标签: 深交所 深圳证券信息有限公司 香港 节点 行情 深圳证券交易所
  • 简介:摘要从L2基本功能的配置角度,介绍钢管热处理生产线L2系统功能和结构,详细描述了L2系统的信息通讯、物料跟踪/数据采集、工艺参数预控和生产过程管理等基本功能实现。由此衍生,在冶金行业其他生产线L2系统上也可按照此基本功能进行结构配置。

  • 标签: L2系统 信息通讯 物流跟踪 数据采集 工艺参数预控 生产过程管理
  • 简介:在线性代数学的L2向量空间的业主转变标准结构函数被介绍,并且为遥感图象的边改进被认识到。Theexperiment结果与传统的拉普拉斯算符和Sobel边改进相比,它证明新方法的效果比传统的算法的好。线性代数学的Matrixdecomposition在信号处理广泛地被使用。在最近的年里,在象Gram-Schmidt那样的线性代数学的L_2向量空间的直角的分解,Givens算法根据遥感的特长被介绍进遥感数据特征抽取光谱信息和公平结果被导出。在这篇论文,业主三角分解算法被用于遥感数据的分析并且把标准作为一样。

  • 标签: 遥感图象 图象边缘增强 范数算法 L2向量空间