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The psychological foundation of CA is behaviorism psychology.Based on behaviorismpsychology,CA believes that errors in foreign language acquisition are the result of thenegative transfer of learners’original mother tongue knowledge.In behaviorist psychology,language is regarded as a habit,and foreign language acquisition also means the acquisitionof a new habit.In the process of acquiring new habits,the original old habits will inevitablyaffect the acquisition of new ones,so will the acquisition of foreign language.Thephenomenon that the original mother tongue knowledge has an impact on the learning ofnew target language knowledge is called“transfer”.According to the influence of transfer,itcan be divided into positive and negative transfer.

Chapter 3 Research Methodology......................21

3.1 Research Questions.........................21

3.2 Subjects and Materials..............................21

3.3 Research Instruments.................................22

Chapter 4 Results and Discussion..........................28

4.1 Distribution of Errors in Students’English Writings.....................28

4.1.1 Distribution of Students’Writing Errors in Each Grade.................28

4.1.2 Differences of Writing Errors between High and Low-scored Compositions inthe Same Grade.........................31

Chapter 5 Conclusion..........................56

5.1 Major Findings...........................56

5.2 Implications............................57

5.3 Limitations and Suggestions........................60

Chapter 4 Results and Discussion

4.1 Distribution of Errors in Students’English Writings

This part mainly deals with the distribution and number of students’writing errors interms of the eleven error dimensions in each grade of junior middle school,and also analyzesdifferences of writing errors between high and low-scored compositions in the same gradeand the differences of writing errors in different grades.

4.1.1 Distribution of Students’Writing Errors in Each Grade

Adopting the error classification method in CLEC by Gui Shichun and Yang Huizhong(2003),this paper divides writing errors into 11 dimensions:lexical errors(fm),word errors(wd),syntactic errors(sn),verb phrase errors(vp),noun phrase errors(np),collocationerrors(cc),pronoun errors(pr),preposition errors(pp),adjective errors(aj),adverb errors(ad)and conjunction errors(cj).After coding the writing errors,with the help of AntConc3.5.8(Windows),the number of errors in each grade are retrieved and counted from these 11dimensions.The results are shown in Table 4-1.

Chapter 5 Conclusion

5.1 Major Findings

This study investigates the writing errors of junior middle school students,by analyzing300 mid-term examination compositions in the three grades of No.1 Junior Middle School ofWuhan ETDZ with the help of the corpus retrieval software AntConc 3.5.8(Windows).Theresearch mainly presents the following findings.

In terms of the overall analysis of the amount of errors,the three grades have the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。