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:
Amy is my classmate. She is a beautiful girl. Today she waer a pink drees, wear white shoes. She say : " Is I beautiful ? " We say : "Yes, you is very beautiful! "

Corrected essay:
Amy is my classmate. She is a beautiful girl. Today she wears a pink dress and white shoes. She says,"Am I beautiful?" We say, "Yes, you are very beautiful!"

Error analysis:
error_sentence: Today she waer a pink drees, wear white shoes.
correct_sentence: Today she wears a pink dress and white shoes.
error: waer
correction: wears
error_type: Subject-Verb Agreement Error
error_severity: 4
error_description: ① Spelling Error: According to English verb spelling rules, the word 〈waer〉 involves a letter order error; the correct spelling should be the singular verb 『wears』, meaning "to put on clothing"; ② Subject-verb Agreement Error: According to English grammar rules, the subject 〈she〉 is a third-person singular pronoun, requiring the predicate verb to be in its corresponding singular form. Therefore, the base form verb 〈waer〉 is changed to the third-person singular form 『wears』 to form the correct subject-verb structure 『She wears...』, complying with the basic grammatical principle of "third-person singular subject + singular verb form".

error_sentence: Today she waer a pink drees, wear white shoes.
correct_sentence: Today she wears a pink dress and white shoes.
error: drees, wear
correction: dress and
error_type: Word Redundancy Error
error_severity: 5
error_description: ① Spelling Error: According to English vocabulary norms, the noun 〈drees〉 has a spelling error; the correct form should be the clothing noun 『dress』, meaning a one-piece garment; ② Word Redundancy Error: The original sentence's repeated use of the verb 〈wear〉 violates the principle of conciseness in English parallel structures; deleting the second 〈wear〉 makes the sentence conform to the standard structure of "subject + predicate + parallel objects"; ③ Conjunction Error: According to English rules for connecting parallel elements, the conjunction 『and』 must be used to connect the two noun phrases 〈dress〉 and 〈white shoes〉. Changing the comma to 『and』 forms 『dress and white shoes』, conforming to parallel structure norms.

error_sentence: She say : " Is I beautiful ? "
correct_sentence: She says,"Am I beautiful?"
error: say : " Is
correction: says,"Am
error_type: Subject-Verb Agreement Error
error_severity: 5
error_description: ① Subject-verb Agreement Error: According to English grammar rules, the subject 〈She〉 is third-person singular, requiring the predicate verb to be in singular form. The original verb 〈say〉 should be changed to the third-person singular form 『says』 to form the correct subject-verb structure 『She says...』, complying with the basic grammatical principle of "third-person singular subject + singular verb form"; ② Punctuation Error: According to English punctuation rules for direct speech, a comma, not a colon, should be used when a declarative sentence introduces direct speech. Therefore, the colon 〈:〉 is changed to a comma 『,』 to form the standard structure 『She says, "..."』; ③ Subject-verb Agreement Error: In the interrogative sentence within the direct speech, the subject 〈I〉, as a first-person singular pronoun, must be paired with the linking verb 『am』, not 〈is〉. Therefore, 〈is〉 is changed to 『am』 to form the correct interrogative structure 『Am I...?』.

error_sentence: We say : "Yes, you is very beautiful! "
correct_sentence: We say, "Yes, you are very beautiful!"
error: :
correction: ,
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English punctuation rules for direct speech, a comma, not a colon, should be used when a declarative sentence introduces direct speech. Therefore, the colon 〈:〉 is changed to a comma 『,』 to form the standard structure 『We say, "..."』.

error_sentence: We say : "Yes, you is very beautiful! "
correct_sentence: We say, "Yes, you are very beautiful!"
error: is
correction: are
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: Subject-verb Agreement Error: According to English grammar rules for subject-linking verb agreement, the second-person subject 〈you〉 must always be paired with the plural linking verb 『are』 in any tense. The original sentence's use of the singular linking verb 〈is〉 violates this basic grammatical principle, thus it must be changed to 『are』 to form the correct subject-verb structure 『you are』.