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, everyone. His is my firend, he wear white T-sher blue shoess. He is beautiful . I like it

Corrected essay:
Hello, everyone. He is my friend. He wears a white T-shirt and blue shoes. He is beautiful. I like him.

Error analysis:
error_sentence: His is my firend, he wear white T-sher blue shoess.
correct_sentence: He is my friend.
error: His
correction: He
error_type: Pronoun Error
error_severity: 3
error_description: ① Pronoun Error: According to English pronoun usage rules, possessive pronouns indicate possession and cannot stand alone as subjects; subjective pronouns are used as subjects. In the original sentence, 〈His〉 is a possessive pronoun incorrectly used as the subject; this is a pronoun error. Therefore, it needs to be changed to the subjective pronoun 『He』 to correctly refer to the person, conforming to grammatical rules.

error_sentence: His is my firend, he wear white T-sher blue shoess.
correct_sentence: He is my friend. He wears a white T-shirt and blue shoes.
error: firend, he wear
correction: friend. He wears a
error_type: Subject-Verb Agreement Error
error_severity: 5
error_description: ① Spelling Error: Based on the sentence's meaning, the intention is to express "friend," so 〈firend〉 is a misspelling of 『friend』; it needs to be corrected to 『friend』 for clarity; ② Punctuation Error: According to English grammar rules, two independent clauses cannot be joined by a comma; they need to be separated by a period. The comma 〈,〉 in the original sentence is used incorrectly and should be changed to 『.』; ③ Case Error: According to English writing conventions, the first letter of a word at the beginning of a sentence must be capitalized. In the original sentence, 〈he〉 is at the beginning of the sentence, but its first letter is not capitalized; this is a case error. Therefore, 〈he〉 needs to be changed to 『He』 to comply with conventions; ④ Subject-Verb Agreement Error: According to subject-verb agreement rules, when the subject is third-person singular, the verb must take the corresponding third-person singular form. In the original sentence, the subject 〈He〉 is third-person singular, but the verb 〈wear〉 is not in the third-person singular form; this is a subject-verb agreement error. Therefore, 〈wear〉 needs to be changed to 『wears』 to comply with grammar rules; ⑤ Determiner Error: According to English grammar rules, singular countable nouns usually require a determiner when not specific. In the original sentence, the noun 〈T - shirt〉 is a singular countable noun lacking a determiner; this is a determiner error. Therefore, the article 『a』 needs to be added before 〈T - shirt〉 to conform to English expression habits.

error_sentence: His is my firend, he wear white T-sher blue shoess.
correct_sentence: He wears a white T-shirt and blue shoes.
error: sher blue shoess
correction: shirt and blue shoes
error_type: Conjunction Error
error_severity: 4
error_description: ① Spelling Error: According to English spelling rules, the word 〈sher〉 is misspelled; the intended word is "shirt," correctly spelled as 『shirt』; the word 〈shoess〉 is misspelled; the intended word is "shoes," correctly spelled as 『shoes』. Therefore, change 〈sher〉 to 『shirt』 and 〈shoess〉 to 『shoes』 to fit the meaning and spelling conventions; ② Conjunction Error: According to English expression habits, coordinate noun phrases need to be connected by a conjunction. The original sentence has two coordinate noun phrases lacking a conjunction. Therefore, this is a conjunction error; 『and』 should be added between 〈white T - shirt〉 and 〈blue shoes〉 to make the sentence structure complete and conform to English expression norms.

error_sentence: I like it
correct_sentence: I like him.
error: it
correction: him.
error_type: Pronoun Error
error_severity: 3
error_description: ① Pronoun Error: According to the semantic rules of English pronouns, the pronoun 〈it〉 is used to refer to things, while the sentence needs to refer to a person; the objective pronoun 『him』 is used to refer to a male and serves as an object. The use of 〈it〉 in the original sentence is a pronoun error; 〈it〉 should be changed to 『him』 to conform to semantic rules; ② Punctuation Error: The independent sentence 〈I like it〉 lacks punctuation at the end; a period should be added to comply with declarative sentence writing conventions.