Writing prompt: Based on what you learned in this unit and the provided hints, use colors to describe your classmate's attire.
Writing hints: wear; shirt; shoes; beautiful; like

Student essay:
Hello, I am ben. I have a good friend, his name Lilei. He likes different clothes and colors. He has a white shirt and a pair of black shoes. He also have three pairs of ieans. He favorite dress is blue sportwear.

Corrected essay:
Hello, I am Ben. I have a good friend, and his name is Li Lei. He likes different clothes and colors. He has a white shirt and a pair of black shoes. He also has three pairs of jeans. His favorite outfit is blue sportswear.

Error analysis:
error_sentence: Hello, I am ben.
correct_sentence: Hello, I am Ben.
error: ben
correction: Ben
error_type: Case Error
error_severity: 1
error_description: Case Error: According to English writing conventions, proper nouns like names must be capitalized; therefore, 〈ben〉 is corrected to 『Ben』 to comply with grammatical rules.

error_sentence: I have a good friend, his name Lilei.
correct_sentence: I have a good friend, and his name is Li Lei.
correction: and
error_type: Conjunction Error
error_severity: 3
error_description: Conjunction Error: According to English grammar rules, the two independent clauses 〈I have a good friend〉 and 〈his name is Li Lei〉 lack a connecting element; the coordinating conjunction 『and』 needs to be added to establish a logical relationship and ensure coherence.

error_sentence: I have a good friend, his name Lilei.
correct_sentence: I have a good friend, and his name is Li Lei.
error: Lilei
correction: is Li Lei
error_type: Auxiliary Error
error_severity: 2
error_description: ① Auxiliary Error: According to basic English sentence structure rules, a subject-complement structure must include a linking verb. The original phrase 〈his name Lilei〉 lacks a linking verb, so 『is』 needs to be added between the subject 〈his name〉 and the complement 〈Lilei〉 to form a complete structure; ② Spelling Error: According to the conventions for transliterating Chinese names into English Pinyin, the syllables should be written separately with the first letter of each capitalized; therefore, the run-on 〈Lilei〉 is corrected to the standard 『Li Lei』.

error_sentence: He also have three pairs of ieans.
correct_sentence: He also has three pairs of jeans.
error: have
correction: has
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: Subject-Verb Agreement Error: According to English grammar rules, when the subject is the third-person singular 〈He〉, the verb must be in the singular form. The original sentence uses the plural verb 〈have〉, which violates the subject-verb agreement principle; therefore, it is corrected to the singular form 『has』.

error_sentence: He also have three pairs of ieans. He favorite dress is blue sportwear.
correct_sentence: He also has three pairs of jeans. His favorite outfit is blue sportswear.
error: ieans. He favorite dress
correction: jeans. His favorite outfit
error_type: Noun Error
error_severity: 4
error_description: ① Spelling Error: According to English spelling rules, 〈ieans〉 is misspelled; the correct form is 『jeans』, so it is corrected to 『jeans』 to ensure accurate spelling; ② Pronoun Error: According to English grammar rules, the noun phrase 〈favorite dress〉 requires a possessive determiner before it. The original sentence uses the subject pronoun 〈He〉, which is grammatically incorrect; it should be changed to the possessive adjective 『His』 to form the complete noun phrase 'His favorite...'; ③ Noun Error: Based on semantic analysis, 〈dress〉 has too narrow a meaning, while 『outfit』 more accurately covers combinations including jeans; therefore, 〈dress〉 is replaced with 『outfit』 for a more logical expression.

error_sentence: He favorite dress is blue sportwear.
correct_sentence: His favorite outfit is blue sportswear.
error: sportwear
correction: sportswear
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to English compound noun formation rules, 〈sportwear〉 is misspelled; the correct form is 『sportswear』 to conform to correct spelling.