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:
This my photo. Thay was my father, mother, bother and I. My father was strong and heath. I want to be a goodman like he.

Corrected essay:
This is my photo. They are my father, mother, brother, and me. My father is strong and healthy. I want to be a good man like him.

Error analysis:
error_sentence: This my photo.
correct_sentence: This is my photo.
correction: is
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: The original sentence 〈This my photo.〉 lacks the necessary predicate verb 『is』, making it grammatically incomplete and unclear; the linking verb 『is』 should be added to connect the subject 〈This〉 with the predicative 〈my photo〉, forming a complete declarative sentence.

error_sentence: Thay was my father, mother, bother and I.
correct_sentence: They are my father, mother, brother, and me.
error: Thay was
correction: They are
error_type: Verb Tense Error
error_severity: 5
error_description: ① Spelling Error: Based on the sentence's meaning, the intended word is '他们' 『They』; the original sentence uses 〈Thay〉, which is a spelling error; 〈a〉 should be changed to 〈e〉, so the correct form is 『They』, a pronoun referring to a plural subject; ② Verb Tense Error: The verb 〈was〉 in the sentence is used improperly because the context describes a current fact or state, not something that happened in the past. Therefore, 〈was〉 should be changed to 『are』 to agree with the plural subject 『They』 and accurately express the current situation.

error_sentence: Thay was my father, mother, bother and I.
correct_sentence: They are my father, mother, brother, and me.
error: bother and I.
correction: brother, and me.
error_type: Pronoun Error
error_severity: 5
error_description: ① Spelling Error: Based on the sentence's meaning, the intended word is '兄弟' 『brother』; the original sentence uses 〈bother〉, which is a spelling error; the letter 〈r〉 should be added, so the correct spelling is 『brother』; ② Punctuation Error: According to English writing conventions, when listing three or more items, a comma ',' should separate each item, and 『, and』 should connect the last two items; therefore, a ',' should be added before 『and』 here to conform to writing standards; ③ Pronoun Error: In the original sentence 〈They are my father, mother, brother and I.〉, 〈I〉 functions as an object within the parallel structure, so the objective case pronoun 『me』 should be used instead of the subjective case 〈I〉.

error_sentence: My father was strong and heath.
correct_sentence: My father is strong and healthy.
error: was
correction: is
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: Based on the context, the intended meaning is that 'the father is currently still strong', indicating a present state; the original text uses the past tense 〈was〉, expressing a past state, which is a verb tense error; it needs to be changed to the simple present tense 『is』 to fit the context.

error_sentence: My father was strong and heath.
correct_sentence: My father is strong and healthy.
error: heath
correction: healthy
error_type: PoS Confusion Error
error_severity: 3
error_description: ① Spelling Error: Based on the context, it is inferred that the intended word is 'health', thus 〈heath〉 is a spelling error for 'health'; ② PoS Confusion Error: The original sentence 〈My father is strong and health.〉 intends to express 'My father is strong and healthy'; using the noun 〈heath〉 is a morphology error/PoS confusion; it needs to be changed to the adjective 『healthy』 to modify the subject 〈My father〉 and accurately describe his state.

error_sentence: I want to be a goodman like he.
correct_sentence: I want to be a good man like him.
error: goodman like he
correction: good man like him
error_type: Pronoun Error
error_severity: 4
error_description: ① Space Error: The original sentence incorrectly spells 〈goodman〉 as a single compound noun; in English, 『good man』 is a phrase composed of the adjective 〈good〉 and the noun 〈man〉, meaning 'a good person'; merging these two words into 〈goodman〉 leads to grammatical and semantic inaccuracy; therefore, the correct form should be the separate words 『good man』; ② Pronoun Error: In the original sentence 〈I want to be a good man like he.〉, 〈he〉 serves as the object of the preposition 〈like〉 and requires the objective case 『him』, not the subjective case 〈he〉; the sentence contains a pronoun error, requiring the subjective pronoun 〈he〉 to be changed to the objective pronoun 『him』 to comply with grammatical rules.