Purpose:Evaluating the quality of academic journal articles is a time consuming but critical task for national research evaluation exercises,appointments and promotion.It is therefore important to investigate whether ...Purpose:Evaluating the quality of academic journal articles is a time consuming but critical task for national research evaluation exercises,appointments and promotion.It is therefore important to investigate whether Large Language Models(LLMs)can play a role in this process.Design/methodology/approach:This article assesses which ChatGPT inputs(full text without tables,figures,and references;title and abstract;title only)produce better quality score estimates,and the extent to which scores are affected by ChatGPT models and system prompts.Findings:The optimal input is the article title and abstract,with average ChatGPT scores based on these(30 iterations on a dataset of 51 papers)correlating at 0.67 with human scores,the highest ever reported.ChatGPT 4o is slightly better than 3.5-turbo(0.66),and 4o-mini(0.66).Research limitations:The data is a convenience sample of the work of a single author,it only includes one field,and the scores are self-evaluations.Practical implications:The results suggest that article full texts might confuse LLM research quality evaluations,even though complex system instructions for the task are more effective than simple ones.Thus,whilst abstracts contain insufficient information for a thorough assessment of rigour,they may contain strong pointers about originality and significance.Finally,linear regression can be used to convert the model scores into the human scale scores,which is 31%more accurate than guessing.Originality/value:This is the first systematic comparison of the impact of different prompts,parameters and inputs for ChatGPT research quality evaluations.展开更多
The integration of artificial intelligence(AI)technology,particularly large language models(LLMs),has become essential across various sectors due to their advanced language comprehension and generation capabilities.De...The integration of artificial intelligence(AI)technology,particularly large language models(LLMs),has become essential across various sectors due to their advanced language comprehension and generation capabilities.Despite their transformative impact in fields such as machine translation and intelligent dialogue systems,LLMs face significant challenges.These challenges include safety,security,and privacy concerns that undermine their trustworthiness and effectiveness,such as hallucinations,backdoor attacks,and privacy leakage.Previous works often conflated safety issues with security concerns.In contrast,our study provides clearer and more reasonable definitions for safety,security,and privacy within the context of LLMs.Building on these definitions,we provide a comprehensive overview of the vulnerabilities and defense mechanisms related to safety,security,and privacy in LLMs.Additionally,we explore the unique research challenges posed by LLMs and suggest potential avenues for future research,aiming to enhance the robustness and reliability of LLMs in the face of emerging threats.展开更多
The exponential growth of literature is constraining researchers’access to comprehensive information in related fields.While natural language processing(NLP)may offer an effective solution to literature classificatio...The exponential growth of literature is constraining researchers’access to comprehensive information in related fields.While natural language processing(NLP)may offer an effective solution to literature classification,it remains hindered by the lack of labelled dataset.In this article,we introduce a novel method for generating literature classification models through semi-supervised learning,which can generate labelled dataset iteratively with limited human input.We apply this method to train NLP models for classifying literatures related to several research directions,i.e.,battery,superconductor,topological material,and artificial intelligence(AI)in materials science.The trained NLP‘battery’model applied on a larger dataset different from the training and testing dataset can achieve F1 score of 0.738,which indicates the accuracy and reliability of this scheme.Furthermore,our approach demonstrates that even with insufficient data,the not-well-trained model in the first few cycles can identify the relationships among different research fields and facilitate the discovery and understanding of interdisciplinary directions.展开更多
High-angle annular dark field(HAADF)imaging in scanning transmission electron microscopy(STEM)has become an indispensable tool in materials science due to its ability to offer sub-°A resolution and provide chemic...High-angle annular dark field(HAADF)imaging in scanning transmission electron microscopy(STEM)has become an indispensable tool in materials science due to its ability to offer sub-°A resolution and provide chemical information through Z-contrast.This study leverages large language models(LLMs)to conduct a comprehensive bibliometric analysis of a large amount of HAADF-related literature(more than 41000 papers).By using LLMs,specifically ChatGPT,we were able to extract detailed information on applications,sample preparation methods,instruments used,and study conclusions.The findings highlight the capability of LLMs to provide a new perspective into HAADF imaging,underscoring its increasingly important role in materials science.Moreover,the rich information extracted from these publications can be harnessed to develop AI models that enhance the automation and intelligence of electron microscopes.展开更多
A large language model(LLM)is constructed to address the sophisticated demands of data retrieval and analysis,detailed well profiling,computation of key technical indicators,and the solutions to complex problems in re...A large language model(LLM)is constructed to address the sophisticated demands of data retrieval and analysis,detailed well profiling,computation of key technical indicators,and the solutions to complex problems in reservoir performance analysis(RPA).The LLM is constructed for RPA scenarios with incremental pre-training,fine-tuning,and functional subsystems coupling.Functional subsystem and efficient coupling methods are proposed based on named entity recognition(NER),tool invocation,and Text-to-SQL construction,all aimed at resolving pivotal challenges in developing the specific application of LLMs for RDA.This study conducted a detailed accuracy test on feature extraction models,tool classification models,data retrieval models and analysis recommendation models.The results indicate that these models have demonstrated good performance in various key aspects of reservoir dynamic analysis.The research takes some injection and production well groups in the PK3 Block of the Daqing Oilfield as an example for testing.Testing results show that our model has significant potential and practical value in assisting reservoir engineers with RDA.The research results provide a powerful support to the application of LLM in reservoir performance analysis.展开更多
With the successful hosting of the Beijing Olympic Games in 2008 and the World Exposition Shanghai China 2010,English,next to our mother tongue,has become the most important language in China.Therefore,learning Englis...With the successful hosting of the Beijing Olympic Games in 2008 and the World Exposition Shanghai China 2010,English,next to our mother tongue,has become the most important language in China.Therefore,learning English well is very important for most Chinese people.However,learning a foreign language well is not easy.We have to master several learning strategies and methods to learn it successfully.This paper will help all the foreign language learners to find the effective way in learning the second foreign languge.The paper mainly talks about two aspects:improving the abilities in listening,speaking and reading in order to communicate well;developing the ability of writing in English and perfecting the function of social communication.It gives out the concrete methods in listening,speaking,reading,writing,and translating.The authors hope that the paper would be helpful in assisting the foreign language learners to learn and master the second foreign language.展开更多
In the second language acquisition, the study focus of linguistics is the influence of age factors which has always been considered as one of the most controversial issues. Some experts hold that the younger the bette...In the second language acquisition, the study focus of linguistics is the influence of age factors which has always been considered as one of the most controversial issues. Some experts hold that the younger the better and would get good competence to learn language well, meanwhile others believe that adult have more strong motivation and competence.Based on the Brain Plasticity Theory and the Critical Period Hypothesis, and the intention of this thesis is to reveal such a hypothesis that the younger the learner who starts to learn a second language, the greater performance that he will achieve like a native does, through the comparative research between children and adults. The subjects are 100 Chinese learners who begin learning at different levels and ages. According to the results of integrated scores and a collection of the data in the questionnaire, an analysis show that the results acquired would be consistent with the hypothesis.The intention of this research is not only to argue which is better, earlier or later, but also an trial, through investigation and study, to provide some insights and suggestion to the existent issues, especially the children second language education and college English study in China.展开更多
Independent language learning is one aspect of what the research literature calls learner autonomy, in other words, the ability and willingness of learners to study foreign languages on their own. This article illustr...Independent language learning is one aspect of what the research literature calls learner autonomy, in other words, the ability and willingness of learners to study foreign languages on their own. This article illustrates the strategies I used to design, carry out and sustain my independent language learning project.展开更多
Anxiety is considered to be one of the key psychological variables as well as one of the important emotional factors that affect language learning. Taken into account that classroom is the main place in which Chinese ...Anxiety is considered to be one of the key psychological variables as well as one of the important emotional factors that affect language learning. Taken into account that classroom is the main place in which Chinese college students learn English,it is of great significance to study students' language anxiety in the classroom environment. Based on the previous researches, this paper reviews the relevant studies in this area conducted at home and abroad.展开更多
Negative transfer is the basic term we need to master in second language acquisition.This paper tries to analyze negative transfer of Chinese from the aspects of lexis,syntax and pragmatics.Besides,it provides suggest...Negative transfer is the basic term we need to master in second language acquisition.This paper tries to analyze negative transfer of Chinese from the aspects of lexis,syntax and pragmatics.Besides,it provides suggestions on how to minimize negative transfer in second language teaching.展开更多
This essay begins with a brief introduction to the changes in foreign language education policy and the main motives for those changes in the context of socio-political circumstances. It then examines the development ...This essay begins with a brief introduction to the changes in foreign language education policy and the main motives for those changes in the context of socio-political circumstances. It then examines the development of language education system in a new college of a university in China over a period of ten years in relation to the issue of internationalization and globalization.The study shows that the language education system of the new college has developed in parallel with the recently-emerged trends in language education in China. Finally,it seeks to interpret these trends in terms of global,national,regional forces that currently drive it forwards.展开更多
Language tests are frequently used as devices to evaluate language learning and teaching; therefore,we must be concerned about the quality—reliability and validity—of our tests.Many researches have showed that the q...Language tests are frequently used as devices to evaluate language learning and teaching; therefore,we must be concerned about the quality—reliability and validity—of our tests.Many researches have showed that the quality of language tests has been decreased owing to the misuse of multiple-choice items.It is necessary to reduce the percentage of objective items in the tests,but what is more important is test writers’ professional skills which can directly affect the quality of the tests. This essay focuses on how to optimize the quality of language tests through the training for test writers. It has become quite urgent and important now,which should involve in familiarizing the writers with basic testing theories,purposes and types of testing,and main specific testing methods.展开更多
L1A(first language acquisition)is expected to shed light on the L2(second language)teaching.However,how far L1A correlates with second language teaching is an argument that never ends.Hence,the hypotheses on L1A and i...L1A(first language acquisition)is expected to shed light on the L2(second language)teaching.However,how far L1A correlates with second language teaching is an argument that never ends.Hence,the hypotheses on L1A and its connection with L2 Teaching are analyzed,along with a discussion on the relationship between L1A,L2A and L2 Teaching.The limitation of L1A to L2T is elaborated from the aspect of literacy,age and time distinction.展开更多
News is an important medium to transmit social information and reflect social reality. Its effects are irreplaceable and the news language which is a carrier to spread information is in fact influenced by many factors...News is an important medium to transmit social information and reflect social reality. Its effects are irreplaceable and the news language which is a carrier to spread information is in fact influenced by many factors such as society, economy and culture. In order to exert its function to gain different social ends, the presentation of news language owns distinguishing features. This article starts from Verschueren's Adaption Theory to have the final conclusion that the adaption to the social, mental and physical world is the key element for the determination of the originality in news language.展开更多
English language teaching and learning in China has achieved enormous prosperity in recent years.It is said that the number of people learning and speaking English in China possibly exceeds the total population of the...English language teaching and learning in China has achieved enormous prosperity in recent years.It is said that the number of people learning and speaking English in China possibly exceeds the total population of the United States and Britain combined.However,the development of English language education in China has experienced several diverse phases and problems and controversies kept emerging especially when a new teaching approach was introduced.Based on the current situation,this paper tries to provide a comprehensive and in-depth overview on English language education in China.This paper is generally divided into two parts.Part one outlines the development of English language education in China with regard to the place of English and the development of teaching approaches.Part two discusses the recent teaching approach promoted official,its progress as well as problems.The focus of the whole paper is on secondary-level education as this is the stage when most students study English.展开更多
Task-based language teaching approach(TBLTA), which lays stress on "learning by doing", gained increasing popularity in English teaching in recent years. The design of phonetic teaching calls for more emphas...Task-based language teaching approach(TBLTA), which lays stress on "learning by doing", gained increasing popularity in English teaching in recent years. The design of phonetic teaching calls for more emphasis from English educators since it is one of the basic rounds of English teaching. This paper made a trial on the utilization of TBLTA in the English phonetic teaching context and designed a TBLTA model for English phonetic teaching based on discussions about model and merits of TBLTA.展开更多
Beyond the stories,Golding spends much effort on an issue called"impotence of language"in his works,especially Lord of the Flies and Darkness Visible.Thus Golding's language view is worthwhile to researc...Beyond the stories,Golding spends much effort on an issue called"impotence of language"in his works,especially Lord of the Flies and Darkness Visible.Thus Golding's language view is worthwhile to research.With help of Lacan's theory of signifier and signified,this paper made a primary glance about Golding's language view within the two novels.展开更多
This thesis tries to analyze the language features of Barack Obama's two inaugural speeches in 2008 and 2012 from the linguistic aspects,including sentence types as well as figures of speech which included imperat...This thesis tries to analyze the language features of Barack Obama's two inaugural speeches in 2008 and 2012 from the linguistic aspects,including sentence types as well as figures of speech which included imperative sentences,parallelism,rhetorical question,alliteration,hyperbole,simile,metaphor and so on.展开更多
Communication is a combination of both verbal language and nonverbal language. Verbal language varies in different cultures, so does nonverbal language. Nowadays more and more teachers have realized the necessity for ...Communication is a combination of both verbal language and nonverbal language. Verbal language varies in different cultures, so does nonverbal language. Nowadays more and more teachers have realized the necessity for students to speak the foreign language in class. However, there are still some problems in teaching, studying and testing foreign language, which will be dealt with in this paper. Some teachers speak foreign language with Chinese body language. Thus students, while talking in class,also use Chinese body language to indicate their thoughts. How can't misunderstanding occur when they communicate with native speakers of foreign language? So body language should be set as one of the contents of foreign language teaching. Therefore,body language and courtesies should play an important role in tests.展开更多
文摘Purpose:Evaluating the quality of academic journal articles is a time consuming but critical task for national research evaluation exercises,appointments and promotion.It is therefore important to investigate whether Large Language Models(LLMs)can play a role in this process.Design/methodology/approach:This article assesses which ChatGPT inputs(full text without tables,figures,and references;title and abstract;title only)produce better quality score estimates,and the extent to which scores are affected by ChatGPT models and system prompts.Findings:The optimal input is the article title and abstract,with average ChatGPT scores based on these(30 iterations on a dataset of 51 papers)correlating at 0.67 with human scores,the highest ever reported.ChatGPT 4o is slightly better than 3.5-turbo(0.66),and 4o-mini(0.66).Research limitations:The data is a convenience sample of the work of a single author,it only includes one field,and the scores are self-evaluations.Practical implications:The results suggest that article full texts might confuse LLM research quality evaluations,even though complex system instructions for the task are more effective than simple ones.Thus,whilst abstracts contain insufficient information for a thorough assessment of rigour,they may contain strong pointers about originality and significance.Finally,linear regression can be used to convert the model scores into the human scale scores,which is 31%more accurate than guessing.Originality/value:This is the first systematic comparison of the impact of different prompts,parameters and inputs for ChatGPT research quality evaluations.
基金supported by the National Key R&D Program of China under Grant No.2022YFB3103500the National Natural Science Foundation of China under Grants No.62402087 and No.62020106013+3 种基金the Sichuan Science and Technology Program under Grant No.2023ZYD0142the Chengdu Science and Technology Program under Grant No.2023-XT00-00002-GXthe Fundamental Research Funds for Chinese Central Universities under Grants No.ZYGX2020ZB027 and No.Y030232063003002the Postdoctoral Innovation Talents Support Program under Grant No.BX20230060.
文摘The integration of artificial intelligence(AI)technology,particularly large language models(LLMs),has become essential across various sectors due to their advanced language comprehension and generation capabilities.Despite their transformative impact in fields such as machine translation and intelligent dialogue systems,LLMs face significant challenges.These challenges include safety,security,and privacy concerns that undermine their trustworthiness and effectiveness,such as hallucinations,backdoor attacks,and privacy leakage.Previous works often conflated safety issues with security concerns.In contrast,our study provides clearer and more reasonable definitions for safety,security,and privacy within the context of LLMs.Building on these definitions,we provide a comprehensive overview of the vulnerabilities and defense mechanisms related to safety,security,and privacy in LLMs.Additionally,we explore the unique research challenges posed by LLMs and suggest potential avenues for future research,aiming to enhance the robustness and reliability of LLMs in the face of emerging threats.
基金funded by the Informatization Plan of Chinese Academy of Sciences(Grant No.CASWX2021SF-0102)the National Key R&D Program of China(Grant Nos.2022YFA1603903,2022YFA1403800,and 2021YFA0718700)+1 种基金the National Natural Science Foundation of China(Grant Nos.11925408,11921004,and 12188101)the Chinese Academy of Sciences(Grant No.XDB33000000)。
文摘The exponential growth of literature is constraining researchers’access to comprehensive information in related fields.While natural language processing(NLP)may offer an effective solution to literature classification,it remains hindered by the lack of labelled dataset.In this article,we introduce a novel method for generating literature classification models through semi-supervised learning,which can generate labelled dataset iteratively with limited human input.We apply this method to train NLP models for classifying literatures related to several research directions,i.e.,battery,superconductor,topological material,and artificial intelligence(AI)in materials science.The trained NLP‘battery’model applied on a larger dataset different from the training and testing dataset can achieve F1 score of 0.738,which indicates the accuracy and reliability of this scheme.Furthermore,our approach demonstrates that even with insufficient data,the not-well-trained model in the first few cycles can identify the relationships among different research fields and facilitate the discovery and understanding of interdisciplinary directions.
基金National Research Foundation(NRF)Singapore,under its NRF Fellowship(Grant No.NRFNRFF11-2019-0002).
文摘High-angle annular dark field(HAADF)imaging in scanning transmission electron microscopy(STEM)has become an indispensable tool in materials science due to its ability to offer sub-°A resolution and provide chemical information through Z-contrast.This study leverages large language models(LLMs)to conduct a comprehensive bibliometric analysis of a large amount of HAADF-related literature(more than 41000 papers).By using LLMs,specifically ChatGPT,we were able to extract detailed information on applications,sample preparation methods,instruments used,and study conclusions.The findings highlight the capability of LLMs to provide a new perspective into HAADF imaging,underscoring its increasingly important role in materials science.Moreover,the rich information extracted from these publications can be harnessed to develop AI models that enhance the automation and intelligence of electron microscopes.
基金Supported by the National Talent Fund of the Ministry of Science and Technology of China(20230240011)China University of Geosciences(Wuhan)Research Fund(162301192687)。
文摘A large language model(LLM)is constructed to address the sophisticated demands of data retrieval and analysis,detailed well profiling,computation of key technical indicators,and the solutions to complex problems in reservoir performance analysis(RPA).The LLM is constructed for RPA scenarios with incremental pre-training,fine-tuning,and functional subsystems coupling.Functional subsystem and efficient coupling methods are proposed based on named entity recognition(NER),tool invocation,and Text-to-SQL construction,all aimed at resolving pivotal challenges in developing the specific application of LLMs for RDA.This study conducted a detailed accuracy test on feature extraction models,tool classification models,data retrieval models and analysis recommendation models.The results indicate that these models have demonstrated good performance in various key aspects of reservoir dynamic analysis.The research takes some injection and production well groups in the PK3 Block of the Daqing Oilfield as an example for testing.Testing results show that our model has significant potential and practical value in assisting reservoir engineers with RDA.The research results provide a powerful support to the application of LLM in reservoir performance analysis.
文摘With the successful hosting of the Beijing Olympic Games in 2008 and the World Exposition Shanghai China 2010,English,next to our mother tongue,has become the most important language in China.Therefore,learning English well is very important for most Chinese people.However,learning a foreign language well is not easy.We have to master several learning strategies and methods to learn it successfully.This paper will help all the foreign language learners to find the effective way in learning the second foreign languge.The paper mainly talks about two aspects:improving the abilities in listening,speaking and reading in order to communicate well;developing the ability of writing in English and perfecting the function of social communication.It gives out the concrete methods in listening,speaking,reading,writing,and translating.The authors hope that the paper would be helpful in assisting the foreign language learners to learn and master the second foreign language.
文摘In the second language acquisition, the study focus of linguistics is the influence of age factors which has always been considered as one of the most controversial issues. Some experts hold that the younger the better and would get good competence to learn language well, meanwhile others believe that adult have more strong motivation and competence.Based on the Brain Plasticity Theory and the Critical Period Hypothesis, and the intention of this thesis is to reveal such a hypothesis that the younger the learner who starts to learn a second language, the greater performance that he will achieve like a native does, through the comparative research between children and adults. The subjects are 100 Chinese learners who begin learning at different levels and ages. According to the results of integrated scores and a collection of the data in the questionnaire, an analysis show that the results acquired would be consistent with the hypothesis.The intention of this research is not only to argue which is better, earlier or later, but also an trial, through investigation and study, to provide some insights and suggestion to the existent issues, especially the children second language education and college English study in China.
文摘Independent language learning is one aspect of what the research literature calls learner autonomy, in other words, the ability and willingness of learners to study foreign languages on their own. This article illustrates the strategies I used to design, carry out and sustain my independent language learning project.
文摘Anxiety is considered to be one of the key psychological variables as well as one of the important emotional factors that affect language learning. Taken into account that classroom is the main place in which Chinese college students learn English,it is of great significance to study students' language anxiety in the classroom environment. Based on the previous researches, this paper reviews the relevant studies in this area conducted at home and abroad.
文摘Negative transfer is the basic term we need to master in second language acquisition.This paper tries to analyze negative transfer of Chinese from the aspects of lexis,syntax and pragmatics.Besides,it provides suggestions on how to minimize negative transfer in second language teaching.
文摘This essay begins with a brief introduction to the changes in foreign language education policy and the main motives for those changes in the context of socio-political circumstances. It then examines the development of language education system in a new college of a university in China over a period of ten years in relation to the issue of internationalization and globalization.The study shows that the language education system of the new college has developed in parallel with the recently-emerged trends in language education in China. Finally,it seeks to interpret these trends in terms of global,national,regional forces that currently drive it forwards.
文摘Language tests are frequently used as devices to evaluate language learning and teaching; therefore,we must be concerned about the quality—reliability and validity—of our tests.Many researches have showed that the quality of language tests has been decreased owing to the misuse of multiple-choice items.It is necessary to reduce the percentage of objective items in the tests,but what is more important is test writers’ professional skills which can directly affect the quality of the tests. This essay focuses on how to optimize the quality of language tests through the training for test writers. It has become quite urgent and important now,which should involve in familiarizing the writers with basic testing theories,purposes and types of testing,and main specific testing methods.
文摘L1A(first language acquisition)is expected to shed light on the L2(second language)teaching.However,how far L1A correlates with second language teaching is an argument that never ends.Hence,the hypotheses on L1A and its connection with L2 Teaching are analyzed,along with a discussion on the relationship between L1A,L2A and L2 Teaching.The limitation of L1A to L2T is elaborated from the aspect of literacy,age and time distinction.
文摘News is an important medium to transmit social information and reflect social reality. Its effects are irreplaceable and the news language which is a carrier to spread information is in fact influenced by many factors such as society, economy and culture. In order to exert its function to gain different social ends, the presentation of news language owns distinguishing features. This article starts from Verschueren's Adaption Theory to have the final conclusion that the adaption to the social, mental and physical world is the key element for the determination of the originality in news language.
文摘English language teaching and learning in China has achieved enormous prosperity in recent years.It is said that the number of people learning and speaking English in China possibly exceeds the total population of the United States and Britain combined.However,the development of English language education in China has experienced several diverse phases and problems and controversies kept emerging especially when a new teaching approach was introduced.Based on the current situation,this paper tries to provide a comprehensive and in-depth overview on English language education in China.This paper is generally divided into two parts.Part one outlines the development of English language education in China with regard to the place of English and the development of teaching approaches.Part two discusses the recent teaching approach promoted official,its progress as well as problems.The focus of the whole paper is on secondary-level education as this is the stage when most students study English.
文摘Task-based language teaching approach(TBLTA), which lays stress on "learning by doing", gained increasing popularity in English teaching in recent years. The design of phonetic teaching calls for more emphasis from English educators since it is one of the basic rounds of English teaching. This paper made a trial on the utilization of TBLTA in the English phonetic teaching context and designed a TBLTA model for English phonetic teaching based on discussions about model and merits of TBLTA.
文摘Beyond the stories,Golding spends much effort on an issue called"impotence of language"in his works,especially Lord of the Flies and Darkness Visible.Thus Golding's language view is worthwhile to research.With help of Lacan's theory of signifier and signified,this paper made a primary glance about Golding's language view within the two novels.
文摘This thesis tries to analyze the language features of Barack Obama's two inaugural speeches in 2008 and 2012 from the linguistic aspects,including sentence types as well as figures of speech which included imperative sentences,parallelism,rhetorical question,alliteration,hyperbole,simile,metaphor and so on.
文摘Communication is a combination of both verbal language and nonverbal language. Verbal language varies in different cultures, so does nonverbal language. Nowadays more and more teachers have realized the necessity for students to speak the foreign language in class. However, there are still some problems in teaching, studying and testing foreign language, which will be dealt with in this paper. Some teachers speak foreign language with Chinese body language. Thus students, while talking in class,also use Chinese body language to indicate their thoughts. How can't misunderstanding occur when they communicate with native speakers of foreign language? So body language should be set as one of the contents of foreign language teaching. Therefore,body language and courtesies should play an important role in tests.
