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:
I am a student , I have a lots of classmate , Xiao YaoYao is my classmate . She wear a shirt is pink , her shoes are black and white . She is coat is red and beautiful , I like it very much .

Corrected essay:
I am a student. I have a lot of classmates. Xiao Yaoyao is my classmate. She wears a pink shirt. Her shoes are black and white. Her coat is red and beautiful. I like it very much.

Error analysis:
error_sentence: I am a student , I have a lots of classmate , Xiao YaoYao is my classmate .
correct_sentence: I am a student.
error: ,
correction: .
error_type: Punctuation Error
error_severity: 2
error_description: ① Space Error: According to English writing conventions, there should be no space before a punctuation mark following a word, so 〈student ,〉 should be changed to 『student.』; ② Punctuation Error: According to English grammar rules and writing conventions, independent clauses cannot be joined by a comma but should be separated by a period. In the original sentence, 〈I am a student〉 and 〈I have a lots of classmate〉 are two independent clauses, each with its own subject-verb structure and capable of standing alone. Using a comma to connect them is a punctuation error; 〈student ,〉 should be changed to 『student.』 to correctly separate the two sentences.

error_sentence: I am a student , I have a lots of classmate , Xiao YaoYao is my classmate .
correct_sentence: I have a lot of classmates. Xiao Yaoyao is my classmate.
error: lots of classmate , Xiao YaoYao
correction: lot of classmates. Xiao Yaoyao
error_type: Noun Number Error
error_severity: 5
error_description: ① Noun Number Error: According to English grammatical structure, to express 'many, a large amount', one should use 'a lot of' or 'lots of'. Thus, in the original phrase 〈a lots of〉, 〈lots〉 represents a noun number error and should be changed to 『lot』; ② Noun Number Error: According to English grammar rules and usage, 'classmate' is a countable noun. After 『a lot of』, it should be in the plural form to express a plural concept, so 〈classmate〉 needs to be changed to 『classmates』; ③ Space Error: According to English writing conventions, there should be no space before a punctuation mark following a word, so 〈classmate ,〉 should be changed to 『classmate.』; ④ Punctuation Error: According to English grammar rules and writing conventions, independent clauses cannot be joined by a comma but should be separated by a period. In the original sentence, 〈I have a lots of classmate ,〉 and 〈Xiao YaoYao is...〉 are two independent clauses, each with its own subject-verb structure and capable of standing alone. Using a comma to connect them is a punctuation error; 〈classmate ,〉 should be changed to 『classmate.』 to correctly separate the two sentences; ⑤ Spelling Error: The spelling format of the name 〈Xiao YaoYao〉 is incorrect. According to English writing conventions, the spelling of names should follow the correct format; 〈Xiao YaoYao〉 should be changed to 『Xiao Yaoyao』.

error_sentence: She wear a shirt is pink , her shoes are black and white .
correct_sentence: She wears a pink shirt. Her shoes are black and white.
error: wear a shirt is pink , her
correction: wears a pink shirt. Her
error_type: Sentence Structure Error
error_severity: 5
error_description: ① Subject-Verb Agreement Error: When the subject is the third-person singular 〈She〉, the verb in the simple present tense needs to be in the third-person singular form. In the original sentence, the verb 〈wear〉 is not inflected accordingly, which is a subject-verb agreement error; 〈wear〉 should be changed to 『wears』; ② Sentence Structure Error: According to English grammar rules and usage, the sentence structure here is subject-verb-object. Therefore, 〈is pink〉 in 〈She wear a shirt is pink ,〉 is a structural error. It is clear that an adjective is modifying a noun, which usually requires placing the adjective before the noun. Thus, 〈a shirt is pink〉 should be changed to 『a pink shirt』; ③ Space Error: According to English writing conventions, there should be no space before a punctuation mark following a word, so 〈shirt ,〉 should be changed to 『shirt.』; ④ Punctuation Error: In the original sentence, 『She wears a pink shirt』 and 〈her shoes are black and white〉 are two independent clauses. Independent clauses cannot be joined by a comma but should be separated by a period. The comma is used improperly in the original sentence, which is a punctuation error; 〈, her〉 should be changed to 『. Her』.

error_sentence: She is coat is red and beautiful , I like it very much .
correct_sentence: Her coat is red and beautiful.
error: She is
correction: Her
error_type: Word Redundancy Error
error_severity: 5
error_description: ① Pronoun Error: According to English grammar rules, the subject pronoun 〈She〉 cannot directly modify the noun 〈coat〉 and fails to correctly express possession, which is a pronoun error. The subject pronoun needs to be changed to the possessive adjective 『Her』 to indicate possession; 〈She〉 should be changed to 『Her』; ② Word Redundancy Error: According to English grammar rules, the correct sentence structure is subject-linking verb-complement, where the subject is 『Her coat』, and there is already a linking verb 〈is〉 following the subject. Therefore, the 〈is〉 in 〈she is coat〉 is redundant and needs to be deleted to form the correct subject-verb structure 『Her coat is...』.

error_sentence: She is coat is red and beautiful , I like it very much .
correct_sentence: Her coat is red and beautiful.
error: ,
correction: .
error_type: Punctuation Error
error_severity: 4
error_description: ① Space Error: According to English writing conventions, there should be no space before a punctuation mark following a word, so 〈beautiful ,〉 should be changed to 『beautiful.』; ② Punctuation Error: According to English grammar rules and writing conventions, independent clauses cannot be joined by a comma but should be separated by a period. 〈Her coat is red and beautiful〉 and 〈I like it very much〉 are two independent clauses, each containing its own subject-verb structure. Using a comma to connect them in the original sentence is a punctuation error; 〈,I〉 should be changed to 『.I』 to correctly separate the sentences and standardize the sentence structure; ③ Space Error: According to English writing conventions, there should be no space before a punctuation mark following a word, so 〈much .〉 should be changed to 『much.』.