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:
It is 7:00 o'clock, let's look at Linda's family now. Linda is helpng her mother do housework, and her mother is cooking for dinner. Linda's grandparents is watching TV. Her brother is playing computerr games, and her sister is listen to the radio.

Corrected essay:
It is 7:00 p.m. Let's look at Linda's family now. Linda is helping her mother do housework, and her mother is cooking dinner. Linda's grandparents are watching TV. Her brother is playing computer games, and her sister is listening to the radio.

Error analysis:
error_sentence: It is 7:00 o'clock, let's look at Linda's family now.
correct_sentence: It is 7:00 p.m. Let's look at Linda's family now.
error: o'clock, let
correction: p.m. Let
error_type: Noun Error
error_severity: 3
error_description: ① Noun Error: In the sentence, 〈o'clock〉 does not clearly indicate whether it is morning or evening; according to the prompt, 〈o'clock〉 should be changed to 『p.m.』 to use a more standard time format; ② Punctuation Error: According to English writing conventions, two independent clauses should be separated by a period; therefore, the 〈,〉 in the original sentence should be changed to 『.』, and combined with the preceding 『p.m.』 to form 『p.m.』. Additionally, 〈let〉 at the beginning of the sentence needs to be capitalized as 『Let』 to comply with writing rules.

error_sentence: Linda is helpng her mother do housework, and her mother is cooking for dinner.
correct_sentence: Linda is helping her mother do housework, and her mother is cooking dinner.
error: helpng
correction: helping
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to the basic word formation rules for English present participles, the verb 〈help〉 should retain all its original letters when adding the -ing suffix. The original spelling 〈helpng〉 incorrectly omits the vowel letter 『i』, resulting in an incomplete present participle form. Therefore, the missing letter 『i』 needs to be added, correcting the misspelling to the standard present participle form 『helping』 that conforms to English word formation rules, accurately expressing the progressive meaning of 'is helping'.

error_sentence: Linda is helpng her mother do housework, and her mother is cooking for dinner.
correct_sentence: Linda is helping her mother do housework, and her mother is cooking dinner.
error: for
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: According to the fixed collocation rules for English verb phrases, 『cook dinner』 is a transitive verb phrase that takes a direct object, requiring no preposition 〈for〉. The use of the preposition 〈for〉 in the original sentence violates idiomatic English usage. Therefore, the redundant preposition 〈for〉 should be deleted, correcting the phrase to the idiomatic 『cook dinner』 to maintain the conciseness and accuracy of the verb phrase structure.

error_sentence: Linda's grandparents is watching TV.
correct_sentence: Linda's grandparents are watching TV.
error: is
correction: are
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: Subject-Verb Agreement Error: According to the basic principle of subject-verb agreement in English grammar, the plural subject 〈grandparents〉, being a third-person plural noun, must be paired with a plural form of the linking verb. The singular verb 〈is〉 used in the original sentence does not match the plural subject. Therefore, the incorrect singular verb 〈is〉 needs to be corrected to the plural form 『are』, forming the correct linking verb structure 『grandparents are』, to fully comply with the mandatory rule in English grammar that a plural subject must correspond to a plural predicate verb.

error_sentence: Her brother is playing computerr games, and her sister is listen to the radio.
correct_sentence: Her brother is playing computer games, and her sister is listening to the radio.
error: computerr
correction: computer
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to the standard spelling rules for the English noun 〈computer〉, the word ends with a single consonant letter 〈r〉. The original spelling 〈computerr〉 incorrectly adds an extra final letter 〈r〉, violating English word formation conventions. Therefore, the redundant letter 〈r〉 needs to be deleted, correcting the misspelling to the standard dictionary spelling of the singular noun 『computer』, to ensure the correctness and standard form of the noun.

error_sentence: Her brother is playing computerr games, and her sister is listen to the radio.
correct_sentence: Her brother is playing computer games, and her sister is listening to the radio.
error: listen
correction: listening
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: According to the core structure requirements of the English present continuous tense, the fixed collocation 'be verb + present participle (V-ing)' must be used. The base form of the verb 〈listen〉 in the original sentence does not meet this tense structure requirement. Therefore, it needs to be converted to the present participle form 『listening』, thus forming the complete continuous tense structure 『is listening』, to strictly adhere to the morphological norms for the continuous tense in English grammar.