Writing prompt: Using the given vocabulary and sentence patterns, and referring to the picture, write a short essay. Assume you are Linda; this is a picture of your room. Please use the 'There be' sentence structure and the information provided below to describe your room. Writing hints: a bed; a bedside table; a wardrobe; some books on the shelf; lamp; on the wall.

Student essay:
There is my bed, Is so big! There is a bedsidde tably. There are my some books on the shelf. There is a lamp'on the wall.

Corrected essay:
This is my bed. It is so big! There is a bedside table. There are some of my books on the shelf. There is a lamp on the wall.

Error analysis:
error_sentence: There is my bed, Is so big!
correct_sentence: This is my bed.
error: There
correction: This
error_type: Pronoun Error
error_severity: 2
error_description: Pronoun Error: According to contextual semantic analysis, the adverb of place 〈There〉 cannot effectively refer to a specific item; the demonstrative pronoun 『This』 should be used for accurate reference. After correction, 『This』 clearly points to the bed mentioned in the picture, conforming to the logical expression norms of English reference relationships.
error_sentence: There is my bed, Is so big!
correct_sentence: This is my bed. It is so big!
error: , Is
correction: . It is
error_type: Pronoun Error
error_severity: 3
error_description: ① Punctuation Error: According to English grammar rules, a comma 〈,〉 cannot connect two independent clauses (comma splice error); it must be replaced with a period to separate them into two complete, independent sentences; ② Pronoun Error: For contextual coherence, the second clause requires the addition of the subject pronoun 『It』 to clearly refer to the previously mentioned bed, maintaining the integrity of the sentence structure; since the second clause becomes an independent sentence after modification, the original capitalized verb 〈Is〉 needs to be adjusted to the complete subject-verb structure 『It is』, where the pronoun 『It』 remains capitalized and the linking verb 『is』 is lowercased, conforming to English capitalization rules for sentence beginnings.
error_sentence: There is a bedsidde tably.
correct_sentence: There is a bedside table.
error: bedsidde tably
correction: bedside table
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to English word formation rules, 〈bedsidde〉 has a consonant doubling error; the correct spelling should be the single consonant form 『bedside』 to conform to the standard spelling of this compound noun; according to English vocabulary spelling rules, 〈tably〉 has a spelling error and should be corrected to the proper noun 『table』; both errors are common basic spelling mistake types for beginner learners.
error_sentence: There are my some books on the shelf.
correct_sentence: There are some of my books on the shelf.
error: my some
correction: some of my
error_type: Word Order Error
error_severity: 5
error_description: ① Word Order Error: According to English grammar rules, the determinative structure expressing partial possession must follow the fixed word order 'quantifier + of + possessive pronoun'. The original structure 〈my some〉 has inverted word order and should be corrected to the standard expression 『some of my』; ② Preposition Error: According to English collocation principles, 『some of』 is an inseparable determinative phrase meaning 'some among them'. The original expression omits the necessary preposition 『of』; this preposition must be added to form a complete and grammatically correct phrase structure, ensuring compliance with English phrase collocation norms.
error_sentence: There is a lamp'on the wall.
correct_sentence: There is a lamp on the wall.
error: lamp'on
correction: lamp on
error_type: Punctuation Error
error_severity: 3
error_description: ① Punctuation Error: According to English writing conventions, an apostrophe was incorrectly added in 〈lamp'on〉; the extraneous symbol needs to be deleted; ② Space Error: According to English fixed phrases, 〈lampon〉 is not a complete word; a space needs to be added to correct the prepositional phrase to 『lamp on』 to meet grammatical structure requirements.