Writing prompt: Assume you are Emily. Below is your family photo. Please introduce your family members based on the picture. Requirement: Write at least 6 sentences.

Student essay:
Look, this is our family photo. This is my father. He is very tall. He is also very young. He is 37 years old this year. Is a teacher. He likes green. This is my mom. She is not tall. My mother is a nurse. Mom is 38 years old. She likes the red one. Look, This is my brother. He likes skateboarding. He is very sunny. He is 13 years old this year. He is a student. My name is Emily. I am seven years old this year. I am a pupil. This is a picture of our family. I love my home. What about you?

Corrected essay:
Look, this is our family photo. This is my father. He is very tall. He is also very young. He is 37 years old this year. He is a teacher. He likes green. This is my mom. She is not tall. My mother is a nurse. Mom is 38 years old. She likes red. Look, this is my brother. He likes skateboarding. He is very sunny. He is 13 years old this year. He is a student. My name is Emily. I am seven years old this year. I am a pupil. This is a picture of our family. I love my family. What about you?

Error analysis:
error_sentence: Is a teacher.
correct_sentence: He is a teacher.
error: Is
correction: He is
error_type: Sentence Structure Error
error_severity: 4
error_description: ① Sentence Structure Error: According to basic English sentence patterns, 〈Is a teacher〉 lacks the necessary subject, forming an incomplete sentence structure. The third-person singular subject 『He』 should be added to form the complete structure 『He is a teacher』, conforming to the basic S+V+P grammar requirement for simple English sentences.; ② Case Error: According to English capitalization rules, the modified 『is』 is in the middle of the sentence, not at the beginning, so the original capitalized 〈Is〉 should be changed to lowercase 『is』, resulting in the grammatically correct expression 『He is a teacher』, fully complying with the capitalization rules for English declarative sentences.

error_sentence: She likes the red one.
correct_sentence: She likes red.
error: the red one
correction: red
error_type: Word Redundancy Error
error_severity: 3
error_description: Word Redundancy Error: According to the principle of conciseness in English expression, the article 〈the〉 and the pronoun 〈one〉 in 〈the red one〉 are redundant in this context; using the adjective 『red』 directly clearly expresses the color preference. Changing it to 『She likes red』 maintains the clarity of the original meaning while making the language more concise and refined, aligning with the common English usage for expressing preferences.

error_sentence: Look, This is my brother.
correct_sentence: Look, this is my brother.
error: This
correction: this
error_type: Case Error
error_severity: 1
error_description: Case Error: According to English punctuation rules, the first letter of a word following a comma should remain lowercase (unless it is a proper noun). Therefore, the incorrectly capitalized 〈This〉 is corrected to the lowercase form 『this』, resulting in the correct format 『Look, this is my brother.』, fully adhering to the grammatical rule of lowercase first letters after punctuation marks in English.

error_sentence: I love my home.
correct_sentence: I love my family.
error: home
correction: family
error_type: Noun Error
error_severity: 3
error_description: Noun Error: Based on semantic analysis, 〈home〉 primarily refers to a physical residence, whereas the context expresses affection for family members. Therefore, 〈home〉 is replaced with the more accurate 『family』; the revised expression more aptly conveys the emotional content of "love for family members", aligning with the customary English expression of feelings regarding family relationships.