Writing prompt: Using the given vocabulary and sentence patterns, and referring to the picture, write a short essay. It is currently 7 PM. Based on the information provided by Linda below, use the present continuous tense to describe what Linda and her family are doing. Writing hints: Linda: help mother do housework; grandparents: watch TV; brother: play computer games; mother: cook; sister: listen to the radio.

Student essay:
At 7:00 o'clock pm. I'm help mother doing housework and grandparents is watching TV Mather is cooking Bother playing compurter games and sister is listening to the radio

Corrected essay:
At 7:00 pm, I'm helping my mother do housework and my grandparents are watching TV. My mother is cooking. My brother is playing computer games, and my sister is listening to the radio.

Error analysis:
error_sentence: At 7:00 o'clock pm.
correct_sentence: At 7:00 pm, I'm helping my mother do housework and my grandparents are watching TV.
error: o'clock pm.
correction: pm,
error_type: Word Redundancy Error
error_severity: 4
error_description: ① Word Redundancy Error: In English time expressions, 'o'clock' and 'pm' are semantically repetitive; using both causes word redundancy. The original sentence contains both 〈o'clock〉 and 〈pm〉, which is unconventional and constitutes a word redundancy error; the redundant 〈o'clock〉 should be deleted; ② Punctuation Error: According to English grammar rules and conventions, a time adverbial is typically followed by a comma to separate it from the main clause and clarify the sentence structure. The original sentence lacks a comma after the time adverbial 『At 7:00 pm.』, violating grammatical rules and constituting a punctuation error; 〈pm.〉 should be changed to 『pm,』.

error_sentence: I'm help mother doing housework and grandparents is watching TV Mather is cooking Bother playing compurter games and sister is listening to the radio
correct_sentence: At 7:00 pm, I'm helping my mother do housework and my grandparents are watching TV.
error: help mother doing
correction: helping my mother do
error_type: Verb Tense Error
error_severity: 5
error_description: ① Verb Tense Error: According to English grammar rules and conventions, the present continuous tense structure requires 'be verb + verb-ing form'. The original phrase 〈I‘m help〉 does not conform to the present continuous structure, constituting a verb tense error; 〈help〉 should be changed to 『helping』; ② Nonfinite Verb Form Error: When the verb 'help' indicates assisting with an action, it should be followed by the infinitive 'to do' or the bare infinitive form. The original phrase 〈help mother doing〉 constitutes a nonfinite verb form error; it should be changed to 『helping my mother do』; ③ Pronoun Error: To clarify the family relationship, a possessive pronoun is needed. The original sentence lacks a determiner before 〈mother〉, making the reference unclear, which constitutes a pronoun error; 『my』 should be added before 〈mother〉 to specify the object.

error_sentence: I'm help mother doing housework and grandparents is watching TV Mather is cooking Bother playing compurter games and sister is listening to the radio
correct_sentence: At 7:00 pm, I'm helping my mother do housework and my grandparents are watching TV.
error: grandparents is
correction: my grandparents are
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: ① Subject-Verb Agreement Error: According to English grammar rules, a plural subject requires a plural verb form. In the original sentence, 〈grandparents〉 is a plural subject, while the accompanying verb 〈is〉 is singular, violating subject-verb agreement rules. This constitutes a subject-verb agreement error; 〈is〉 should be changed to 『are』; ② Pronoun Error: To clarify the family relationship, a possessive pronoun is needed. The original sentence lacks a determiner before 〈grandparents〉, making the reference unclear, which constitutes a pronoun error; 〈my〉 should be added to make the expression clearer and more accurate.

error_sentence: I'm help mother doing housework and grandparents is watching TV Mather is cooking Bother playing compurter games and sister is listening to the radio
correct_sentence: At 7:00 pm, I'm helping my mother do housework and my grandparents are watching TV. My mother is cooking.
error: Mather
correction: . My mother
error_type: Punctuation Error
error_severity: 3
error_description: ① Punctuation Error: Independent clauses cannot be run together; they must be separated by a period. In the original sentence, 〈My grandparents are watching TV〉 and 〈My mother is cooking〉 are two independent clauses. The original sentence lacks a period for separation, constituting a punctuation error; a period 『.』 should be added after TV, making it 『TV.』 to ensure clear and standard sentence structure; ② Spelling Error: Based on the context, the intended word is 'mother'. The word 〈Mather〉 is misspelled; the correct form is 『mother』. 〈Mather〉 should be changed to 『mother』 for correct expression.

error_sentence: I'm help mother doing housework and grandparents is watching TV Mather is cooking Bother playing compurter games and sister is listening to the radio
correct_sentence: My mother is cooking. My brother is playing computer games, and my sister is listening to the radio.
error: Bother playing compurter games and
correction: . My brother is playing computer games, and my
error_type: Verb Tense Error
error_severity: 5
error_description: ① Punctuation Error: According to English grammar rules, independent sentences require separation by punctuation such as a period. The original sentence fails to properly separate multiple independent expressions; a period 『.』 should be inserted between the preceding clause (ending with 'cooking') and 『My brother』, resulting in 『. My』 to separate the independent sentences and clarify the structure; ② Determiner Error: To clarify family relationships, possessive pronouns are needed. The original sentence lacks determiners before 〈brother〉 and 〈sister〉, making the references unclear, which constitutes a determiner error; 〈brother〉 and 〈sister〉 should be changed to 『my brother』 and 『my sister』 for clearer and more accurate expression; ③ Spelling Error: Based on the context, the intended words are 'brother' and 'computer'. 〈Bother〉 and 〈compurter〉 are misspelled; the correct forms are 『brother』 and 『computer』 respectively. 〈Bother〉 should be changed to 『brother』, and 〈compurter〉 should be changed to 『computer』 for correct expression; ④ Verb Tense Error: According to English grammar rules and conventions, the present continuous tense structure is 'be verb + verb-ing form'. The original phrase 〈Bother playing computer games〉 lacks the 'be' verb, thus not conforming to the present continuous structure. This constitutes a verb tense error; 〈playing〉 should be changed to 『is playing』; ⑤ Punctuation Error: According to English grammar rules, in the original clause 〈Bother playing compurter games and sister is listening to the radio〉, a comma should precede 〈and〉, changing it to 『, and』, to separate the clauses and enhance sentence clarity.

error_sentence: I'm help mother doing housework and grandparents is watching TV Mather is cooking Bother playing compurter games and sister is listening to the radio
correct_sentence: My brother is playing computer games, and my sister is listening to the radio.
correction: .
error_type: Punctuation Error
error_severity: 2
error_description: ① Punctuation Error: According to English writing conventions, a complete sentence requires an end punctuation mark. The original sentence lacks a period at the end, which does not conform to the formal standards for English sentences and constitutes a punctuation error; a period should be added at the end, making it 『radio.』, to ensure the sentence structure is complete.