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 have a school. My have a lot classmate. Linda is my friend. She like black shoes, black shirt and blue trousers. She look is very beautiful

Corrected essay:
I am at school. I have a lot of classmates. Linda is my friend. She likes black shoes, black shirts and blue trousers. She looks very beautiful.

Error analysis:
error_sentence: I have a school.
correct_sentence: I am at school.
error: have a
correction: am at
error_type: Verb Choice Error
error_severity: 3
error_description: ① Verb Choice Error: According to English grammar rules and context, the sentence should express “I am at school” rather than “I own a school”. 〈have〉 in English means “to possess”, which doesn't fit the context of “being at school”; 『am』 should be used to indicate state; ② Preposition Error: According to English grammar rules and context, the preposition 『at』 is needed to express “being at a place” in English; the original sentence lacks a preposition and cannot correctly express the location. Therefore, 〈have a〉 needs to be changed to 『am at』 to make the sentence grammatically correct and contextually appropriate, correctly expressing the meaning of “at school”.

error_sentence: My have a lot classmate.
correct_sentence: I have a lot of classmates.
error: My
correction: I
error_type: Pronoun Error
error_severity: 3
error_description: ① Pronoun Error: According to English grammar rules, only subject pronouns can function as the subject of a sentence. The possessive pronoun 〈My〉 is a possessive adjective, primarily used to indicate possession, and cannot serve as the subject. It needs to be changed to 『I』 to comply with grammar rules and form a correct subject-verb structure.

error_sentence: My have a lot classmate.
correct_sentence: I have a lot of classmates.
error: classmate
correction: of classmates
error_type: Noun Number Error
error_severity: 3
error_description: ① Preposition Error: According to English grammar rules, when 〈a lot〉 is followed by a noun, 『of』 must be added to form the correct phrase “a lot of” to properly express “many”. In the original sentence, there is a preposition error with 〈a lot〉. Therefore, 〈a lot〉 should be changed to 『a lot of』; ② Noun Number Error: According to English grammar rules, 『a lot of』 means “many” and should be followed by a plural noun when the noun is countable. The original noun 〈classmate〉 is singular, which is inconsistent with the meaning; it should be changed to 『classmates』.

error_sentence: She like black shoes, black shirt and blue trousers.
correct_sentence: She likes black shoes, black shirts and blue trousers.
error: like
correction: likes
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: ① Subject-Verb Agreement Error: According to English grammar rules, when the subject is a third-person singular 〈She〉, the present tense verb must take the third-person singular form. In the original sentence, the subject 〈She〉 is third-person singular, but the verb 〈like〉 is in the base form; they do not agree, which is a subject-verb agreement error. Therefore, 〈like〉 needs to be changed to 『likes』 to make the sentence grammatically correct.

error_sentence: She like black shoes, black shirt and blue trousers.
correct_sentence: She likes black shoes, black shirts and blue trousers.
error: shirt
correction: shirts
error_type: Noun Number Error
error_severity: 3
error_description: ① Noun Number Error: According to English grammar rules, in parallel structures, similar nouns should maintain consistent singular or plural forms. In the original sentence, 〈black shoes〉 and 〈blue trousers〉 are both plural, while 〈shirt〉 is singular; the forms are inconsistent, constituting a noun number error. Therefore, 〈shirt〉 needs to be changed to 『shirts』 to make the sentence grammatically correct.

error_sentence: She look is very beautiful
correct_sentence: She looks very beautiful.
error: look is
correction: looks
error_type: Word Redundancy Error
error_severity: 4
error_description: ① Subject-Verb Agreement Error: According to English grammar rules, the subject 〈She〉 is third-person singular, so in the simple present tense, the verb must be in the third-person singular form. In the original sentence, 〈look〉 is in the base form, which does not agree with the subject; it should be changed to 『looks』; ② Word Redundancy Error: According to English usage, the sensory verb 〈look〉 can directly connect to an adjective as a predicative, without needing an additional 〈is〉. In the original sentence 〈She look is very beautiful〉, 〈is〉 is redundant, constituting word redundancy; 〈is〉 should be deleted to make the sentence concise and grammatically correct.

error_sentence: She look is very beautiful
correct_sentence: She looks very beautiful.
correction: .
error_type: Punctuation Error
error_severity: 2
error_description: ① Punctuation Error: According to English writing conventions, a declarative sentence requires a period at the end to ensure completeness. The original sentence 〈She look is very beautiful〉 has a punctuation error; a period 『.』 needs to be added at the end to comply with English writing conventions.