Writing prompt: My House

Student essay:
My house is in the city. It is on the eighth flat. My house has got three bedrooms. This is a big badroom and two small badrooms. My house is in a small badroom. My house has got two bookcases. Because is my book are very much. My house is very beautiful.

Corrected essay:
My house is in the city. It is on the eighth floor. My house has three bedrooms. They are one big bedroom and two small bedrooms. My room is the small bedroom. My house has two bookcases. Because I have too many books. My house is very beautiful.

Error analysis:
error_sentence: It is on the eighth flat.
correct_sentence: It is on the eighth floor.
error: flat
correction: floor
error_type: Noun Error
error_severity: 3
error_description: Noun Error: According to British and American English differences, 〈flat〉 means 'apartment' in British English, while here a noun meaning 'floor level' is needed, so the common American English word 『floor』 is used for more accurate meaning.

error_sentence: My house has got three bedrooms.
correct_sentence: My house has three bedrooms.
error: got
error_type: Word Redundancy Error
error_severity: 3
error_description: Word Redundancy: In standard English (especially American English), 〈got〉 in 〈has got〉 is a redundant expression; using 『has』 directly can concisely express the meaning of 'to own', so it is changed to 『My house has three bedrooms』 to conform to language habits.

error_sentence: This is a big badroom and two small badrooms.
correct_sentence: They are one big bedroom and two small bedrooms.
error: This is a big badroom
correction: They are one big bedroom
error_type: Subject-Verb Agreement Error
error_severity: 5
error_description: ① Pronoun Error: According to the context, 〈This〉 refers to the plural rooms mentioned earlier, so it needs to be changed to the plural pronoun 『They』 to ensure the pronoun agrees in number with its antecedent; ② Subject-Verb Agreement Error: Since the subject has been changed to the plural pronoun 『They』, the verb needs to be adjusted to its plural form, changing 〈is〉 to 『are』 to comply with the English subject-verb agreement principle; ③ Determiner Error: When expressing a quantity comparison, structural parallelism needs to be maintained. The original 〈a〉 should be changed to the cardinal number 『one』 to form a correct correspondence with the subsequent 〈two〉; ④ Spelling Error: 〈badroom〉 does not conform to English word formation rules; according to the meaning, it should be corrected to 『bedroom』 to ensure accurate spelling and correctly express the meaning of 'bedroom'.

error_sentence: This is a big badroom and two small badrooms.
correct_sentence: They are one big bedroom and two small bedrooms.
error: badrooms
correction: bedrooms
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: 〈badroom〉 does not conform to English word formation rules; according to the meaning, it should be corrected to 『bedroom』 to ensure accurate spelling and correctly express the meaning of 'bedroom'.

error_sentence: My house is in a small badroom.
correct_sentence: My room is the small bedroom.
error: house is in a small badroom
correction: room is the small bedroom
error_type: Noun Error
error_severity: 5
error_description: ① Noun Error: According to contextual semantic analysis, 〈house〉 (building) does not match the described indoor space characteristics and should be changed to the specific spatial unit 『room』, meaning 'room', to ensure descriptive accuracy; ② Preposition Error: The original sentence contains an unnecessary preposition 〈in〉; according to English grammar rules, when the verb already implies location, there is no need to repeat a locational preposition, so it is deleted directly to keep the sentence concise; ③ Determiner Error: Change the indefinite article 〈a small bedroom〉, which is general, to the definite article 『the small bedroom』, which is specific, because the context has already clarified the specific bedroom being referred to, conforming to the English rule of 'use the for second mention', accurately pointing to the small bedroom known to both parties in the conversation.

error_sentence: My house has got two bookcases.
correct_sentence: My house has two bookcases.
error: got
error_type: Word Redundancy Error
error_severity: 3
error_description: Word Redundancy: In standard English (especially American English), 〈got〉 in 〈has got〉 is a redundant expression; using 『has』 directly can concisely express the meaning of 'to own', so it is changed to 『My house has three bedrooms』 to conform to language habits.

error_sentence: Because is my book are very much.
correct_sentence: Because I have too many books.
error: is my book are very much
correction: I have too many books
error_type: Sentence Structure Error
error_severity: 5
error_description: ① Sentence Structure Error: The original sentence 〈Because is my book are very much〉 is missing a subject; according to basic English sentence structure rules, the subject 『I』 needs to be added; ② Verb Choice Error: According to verb semantic requirements, neither 〈is〉 nor 〈are〉 can express 'possession'; the verb 『have』 is used instead to express 'having many books'; ③ Adverb Error: According to English adverb usage rules, the adverb phrase 〈very much〉 modifies uncountable nouns; here, 『too many』 is needed to modify the countable plural noun 〈books〉. In summary, it is corrected to 『I have too many books』 to conform to grammatical norms and logical meaning.