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Whether in everyday life or in academic research,identity is a term with multiplemeanings.It includes the most personal aspects of who people are,as well as group-levelidentification(Karen Tracy,2013,p.3).In everyday conversation,we often talk about peoplehaving an“identity crisis”,which means confusion about who they are.We also see identityas something that belongs to the individual,property that can be stolen called“identity fraud”.The term also refers to the boxes that societies use to classify their members.When people fillin the forms,the descriptive stuff is seen as informative and necessary.When people fromthese groups fight over who is or is not entitled to resources and respect,we call this process“identity politics”.Since Norton(1995,p.7)injected the social perspective of identity intosecond language acquisition(SLA),there has been intense interest in identity and itsrelationship to language in applied linguistics.

Social psychologists Henry Tajffel and John Turner,or those influenced by sociolinguistWilliam Labov,have adopted a categorical approach that equates identity with group-levelcategories such as race,nationality and social class.Categorization approaches treat identityas a stable aspect of people,shaping the way they communicate(Turner&Oakes,1986,p.10).In contrast,other scholars have adopted a social constructivist approach.Socialconstructivists believe that people are formed through the actions they choose,especially their expressive choices.That is,instead of seeing identity as fixed and stable,identity is seen asfluid,best expressed in the plural(identities),the parts of which are liable to conflict.Peoplechange their identities to fit the needs of the moment.Having an identity is an achievement,not a pre-existing fact(Ochs,1993,p.112).

2.2 Previous studies of corporate identity construction

The following is a detailed review of previous studies from four perspectives:criticaldiscourse analysis,appraisal theory,genre analysis and discourse-historical approach.

2.2.1 Previous studies from the perspective of critical discourse analysis

The fact that the world has entered a new historical period means that it has entered theera of a low carbon economy.Due to the high level of pollution in the production processes ofenergy companies,the pressure on the ecological environment has increased.Therefore,theurgent task for energy companies at this stage is how to transform the traditional energychemical industry so as to further reduce pollution levels and thus better adapt to therequirements of building an environmentally friendly society.Sun Xiuli(2021)studies thecorporate identity construction of China National Petroleum Corporation(CNPC)in order tobetter establish a positive image of energy companies and provide help to improve thestrength of Chinese energy companies.Hu Kaibao and Sheng Dandan(2020)also analyze andstudy Huawei’s corporate image according to its Sustainable Development Report.Theyadopt Fairclough’s three-dimensional discourse analysis theory and the method of corpus andfind that Huawei has built an aggressive and pragmatic corporate image and contributed toimproving the international im本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。