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1.
Errors are of significance to language learners in that they are unavoidable and necessary part of learning. We collect120 HVC students’ in-class compositions. Writing errors are identified,marked and annotated in line with the error tagging system used by Gui in CLEC. A mini-corpus is created and tokens are counted and analyzed with SPSS. A factor analysis together with follow-up interview is made to figure out if common factors can account for certain types of errors. 相似文献
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XU Shu-ling 《海外英语》2013,(9)
The research on the common errors in junior English writings reflects the categories of errors, resources of errors, and how to do with errors in effective ways. Errors are divided into two types:intra... 相似文献
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Negative Constructions in English and Chinese:A Comparative Study and Its Application to Translation
《双语学习》2007,(7)
This paper gives a detailed analysis of the means of negation and of some common idiomatic negative expressions in English. The paper, based on translation studies, conducts a contrastive and comparative study of negation in English and Chinese and tries to find similarities and dissimilarities, aimed at illuminating the problem and highlighting common errors in the translating of negation in English. 相似文献
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The publication of the ten-chapter work Ma Shi Wen Tong by Ma Jianzhong marks the establishment of Chinese grammatical rules.For ages,in a way comparable to what was done in western languages,the study of Chinese grammar tends more or less to imitate Indo-European grammar.This paper made an attempt to discuss the influence produced by Indo-European grammatical theories on Chinese grammar and pointed that Chinese grammatical study is bound to be carried out on the basis of language self characteristics. 相似文献
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Representations of contemporary rapid prototyping (RP) technologies may not be able to manage and share data processing information based on network. This paper presents a new approach, together with its technical implementation, to solve this problem, and discusses web-based study on RP data processing techniques. At present STL files produced by 3D modeling systems contain triangular facet representation of surfaces and have become standard data inputs of RP and manufacturing systems. The paper proposes algorithms for correcting common errors, and optimizes the algorithm of gaps or hole errors leading to open loops in the data structure based on analyses of the rules and errors in the STL file. In addition, effectiveness of the approach is demonstrated by a simple model view example of STL files based on Java 3D technology. 相似文献
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It is not surprising that non-native speakers of English frequently make morphological errors when they are speaking or writing in English. But it is interesting to find out that some native English speakers sometimes use words in an ungrammatical or inappropriate way. This article analyses the usage of the word"uncorrect"and tries to show the background of this term by searching online and consulting to the dictionaries and also to analyze the word formation and usage of this term. 相似文献
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Analysis of 3D curve expansion of conical cam with oscillating tapered roller follower 总被引：1，自引：0，他引：1
This paper focuses on the analysis of running conditions and machining processes of conical cam with oscillating follower. We point out the common errors existing in the design and machining of the widely used plane expansion method of conical cam trough-out line. We show that the motion can be divided into two parts, i.e. the oscillating motion of oscillating bar and the rotary motion of oscillating bar relative to the conical cam. By increasing the rotary motion of oscillating bar, the motion path of tapered roller on oscillating bar (i.e. contour surface of conical cam) can be expanded on the cylinder. Based on these analyses, we present a creative and effective designing and machining method for 3D curve expansion of conical cam with oscillating follower. 相似文献
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CHEN Jun-hua WU Yi-jie 《浙江大学学报(A卷英文版)》2007,8(11):1789-1794
This paper focuses on the analysis of running conditions and machining processes of conical cam with oscillating follower. We point out the common errors existing in the design and machining of the widely used plane expansion method of conical cam trough-out line. We show that the motion can be divided into two parts, i.e. the oscillating motion of oscillating bar and the rotary motion of oscillating bar relative to the conical cam. By increasing the rotary motion of oscillating bar, the motion path of tapered roller on oscillating bar （i.e. contour surface of conical cam） can be expanded on the cylinder. Based on these analyses, we present a creative and effective designing and machining method for 3D curve expansion of conical cam with oscillating follower. 相似文献
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A laser collimating system based on 2-D position sensitive detector (PSD) is presented in this paper. The working principle of PSD is depicted in detail. A calibration device was developed to check the nonlinearity errors of PSD and a multilayer feedforward neural network based on error back-propagation algorithm was used to compensate errors. With the aid of computer-based data acquisition system, an automatic dynamic measuring process was realized. A series of experiments, including comparison tests with laser interferometer, were done to evaluate the performance of the measuring system. The experimental results show that the spatial straightness errors of guide rails can be measured with high accuracy. The maximum differences between the device and laser interferometer are 0. 027 mm in Y direction, and 0. 053 mm in X direction in the measuring distance of 6 m. 相似文献
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REN Kun FU Jian-zhong CHEN Zi-chen 《浙江大学学报(A卷英文版)》2007,8(12):1938-1943
To reduce mechanical vibrations induced by big errors compensation, a new software compensation method based on an improved digital differential analyzer （DDA） interpolator for static and quasi-static errors of machine tools is proposed. Based on principle of traditional DDA interpolator, a DDA interpolator is divided into command generator and command analyzer. There are three types of errors, considering the difference of positions between compensation points and interpolation segments. According to the classification, errors are distributed evenly in data processing and compensated to certain interpolation segments in machining. On-line implementation results show that the proposed approach greatly improves positioning accuracy of computer numerical control （CNC） machine tools. 相似文献
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In machining processes, errors of rough in dimension, shape and location lead to changes in processing quantity, and the material of a workpiece may not be uniform. For these reasons, cutting force changes in machining, making the machining system deformable. Consequently errors in workpieces may occur. This is called the error reflection phenomenon. Generally, such errors can be reduced through repeated processing while using appropriate processing quantity in each processing based on operator‘s experience.According to the theory of error reflection, the error reflection coefficient indicates the extent to which errors of rough influence errors of workpieces. It is related to several factors such as machining condition, hardness of the workpiece, etc. This non-linear relation cannot be worked out using any formula. RBF neural network can approximate a non-linear function within any precision and be trained fast. In this paper, non-linear mapping ability of a fuzzy-neural network is utilized to approximate the non-linear relation. After training of the network with swatch collection obtained in experiments, an appropriate output can be obtained when an input is given. In this way, one can get the required number of processing and the processing quantity each time from the machining condition. Angular rigidity of a machining system,hardness of workpiece, etc., can be input in a form of fuzzy values. Feasibility in solving error reflection and optimizing machining parameters with a RBF neural network is verified by a simulation test with MATLAB. 相似文献
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In the English writing class, teachers have to confront numerous and diverse errors in students’writings. They must decide which types of errors require the most attention. In this research, through the investigation of a group of English teachers’ evaluation of different types of errors selected from students’writings, it was found that these teachers paid more attention to local errors than global errors, which is different from native speakers’ evaluation of error gravity. Causes for this phenomenon as well as pedagogical implications are also discussed in this paper. 相似文献
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Adopting a stylistic approach, this paper tries to figure out the theme of Larkin’s “The building” by means of observing it on three different levels: aural, grammatical, and semantic, offering an example of applying stylistic methods to the study of poetry. 相似文献
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The software Wordsmith has been commonly used in corpus linguistics.In this paper,the author used the tool of Concord in Wordsmith to analyze various errors made by a student.Five passages made by the students are used.After annotating on the errors,the author uses Concord to sort out each error maker and made classification chart of the errors.All the errors are classified into two categories:errors caused by carelessness and by language ability.After analyzing,there are mainly three kinds of errors and in the first category and five kinds of errors in the second category. 相似文献
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In 1993,the Nobel Prize of Literature was granted to an American black woman writer,Toni Morrison.She disclosed the features of language in her Nobel Lecture with a story of"the bird-in-hand".Language is both a tool of the ruling class to govern people and a tool fort he common people to understand society and express themselves.Morrison has a deep understanding of it and makes good use of the features to express women’s liberation and racial liberation in her works,which make her language peculiar and her ... 相似文献
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Cohesion is essential to the analysis and understanding of the discourse and is a significant device to help to realize the succinctness, coherence and the value of the language in the text. Cohesive devices are sorted into two types by Halliday and Hasan: lexical cohesion(repetition, synonymy and collocation) and grammatical cohesion(reference, ellipsis, substitution and conjunction). The present thesis intends to render insight into the internal structure of Hemingway's world-famous novel The Old Man and the Sea from a discourse-stylistic perspective by analyzing both the grammatical and lexical cohesive devices employed in it. Additionally, the thesis will consider the relationship between the employment of cohesive devices in Hemingway's classic profound language techniques and his gist of heroism that encompasses a trinity of roles ——Saint, Hero and Father. 相似文献
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GONG Min-li 《海外英语》2013,(13):173-176
In an attempt to understand different cultures in the use of idioms which related to animals,this study collected,compared,and analyzed Chinese and English idioms on"马"and"horse"by references to a large number of dictionaries.The results show that in Chinese,the idioms on horse has the following features:above all,it covers evenly in commendatory,neutral,and derogatory senses;more specifically,it has a direct link to war in the commendatory sense while in neutral and derogatory senses,its references have been broadened;another common phenomenon is that horses in Chinese idioms are usually a large collection.However,English idioms in the use of horse favors on the derogatory sense since they focus more on the nature of horse-stubborn,arrogant,and even condescending.If horses are praised,they mostly refer to the talented people rather than any other things.The similarities and differences in the use of"马"and"horse"help to probe into the color of culture between eastern and western countries. 相似文献
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Vocabulary is an indispensable part of language and is of vital importance for second language learners. Students make form, collocation and ambiguous errors in English vocabulary acquisition. This thesis attempts to analyze errors in students’ English vocabulary acquisition based on error analysis, give the reasons and further put up some teaching approaches to lessen or avoid errors. 相似文献