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:
My name is Peng si han, she is my friend, her name is chen ye jia, she is wear a white shirt and wear a pair of red shoes, she looks very beautiful today. I also really like her shoes.

Corrected essay:
My name is Peng Sihan. This is my friend, and her name is Chen Yejia. She is wearing a white shirt and a pair of red shoes. She looks very beautiful today. I also really like her shoes.

Error analysis:
error_sentence: My name is Peng si han, she is my friend, her name is chen ye jia, she is wear a white shirt and wear a pair of red shoes, she looks very beautiful today.
correct_sentence: My name is Peng Sihan. This is my friend, and her name is Chen Yejia.
error: si han, she
correction: Sihan. This
error_type: Sentence Structure Error
error_severity: 4
error_description: ① Spelling Error: According to English writing conventions for Chinese names, the first letter of the surname's pinyin should be capitalized, and the pinyin for a two-character given name should be written together with the first letter of the first character's pinyin capitalized. Here, the name 〈si han〉 is misspelled and should be corrected to 『Sihan』 to comply with English spelling rules; ② Punctuation Error: The sentences “My name is Peng si han” and “she is my friend” each contain independent predicate structures and are separate sentences; they cannot be joined by a comma but require a period for separation, thus it should be changed to 『Sihan. This』; ③ Pronoun Error: According to the prompt, the author is introducing a friend. When mentioning the friend for the first time, the pronoun 『This』 should be used for introduction, not 〈she〉. Also, being at the beginning of the sentence, the first letter must be capitalized, changed to 『This』.

error_sentence: My name is Peng si han, she is my friend, her name is chen ye jia, she is wear a white shirt and wear a pair of red shoes, she looks very beautiful today.
correct_sentence: This is my friend, and her name is Chen Yejia.
correction: and
error_type: Conjunction Error
error_severity: 3
error_description: Conjunction Error: The sentences 〈she is my friend〉 and 〈her name is Chen Yejia〉 each contain independent predicate structures and are separate sentences; therefore, 『and』 needs to be added between them to connect the two independent clauses and maintain semantic flow.

error_sentence: My name is Peng si han, she is my friend, her name is chen ye jia, she is wear a white shirt and wear a pair of red shoes, she looks very beautiful today.
correct_sentence: This is my friend, and her name is Chen Yejia. She is wearing a white shirt and a pair of red shoes.
error: chen ye jia, she is wear
correction: Chen Yejia. She is wearing
error_type: Nonfinite Verb Form Error
error_severity: 4
error_description: ① Spelling Error: According to English writing conventions for Chinese names, the first letter of the surname's pinyin should be capitalized, and the pinyin for a two-character given name should be written together with the first letter of the first character's pinyin capitalized. Here, the name 〈chen yejia〉 is misspelled and should be corrected to 『Chen Yejia』 to comply with English spelling rules; ② Sentence Structure Error: The sentences 〈Her name is Chen Yejia〉 and 〈she is wearing...〉 each contain independent predicate structures and are separate sentences; they cannot be joined by a comma but require a period for separation, 『Chen Yejia. She is wearing.』; ③ Case Error: According to English writing conventions, the first letter of the first word in a sentence should be capitalized. Therefore, 〈she〉 at the beginning of the sentence should be changed to 『She』 to comply with the rule; ④ Nonfinite Verb Form Error: According to English grammar rules, in the original sentence 〈she is wear〉, the nonfinite verb form 〈wear〉 is incorrect; it needs to be changed to 『She is wearing.』 to comply with the present continuous tense rule.

error_sentence: My name is Peng si han, she is my friend, her name is chen ye jia, she is wear a white shirt and wear a pair of red shoes, she looks very beautiful today.
correct_sentence: She is wearing a white shirt and a pair of red shoes.
error: wear
error_type: Word Redundancy Error
error_severity: 4
error_description: Word Redundancy Error: According to English grammar rules, both 〈a white shirt〉 and 〈a pair of red shoes〉 serve as objects of the preceding verb 『is wearing』; therefore, the redundant 〈wear〉 before 〈a pair of red shoes〉 should be deleted.

error_sentence: My name is Peng si han, she is my friend, her name is chen ye jia, she is wear a white shirt and wear a pair of red shoes, she looks very beautiful today.
correct_sentence: She is wearing a white shirt and a pair of red shoes. She looks very beautiful today.
error: , she
correction: . She
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: Using a comma 〈,〉 before the sentence 〈she looks very beautiful today〉 to separate two independent clauses does not conform to English written expression standards; it should be changed to a period 『. She』 to separate the two complete sentences.