Writing prompt: Written Expression.
Using the given vocabulary and sentence patterns, and referring to the picture, write a short essay.
Based on the information provided by Tom below, and referring to the picture, describe Tom's activities for next weekend using the simple future tense:
Writing hints:
On Saturday: do his homework 9:30; watch TV 11:00; go to the park in the afternoon
On Sunday: clean his room 10:00; play basketball 14:00; have a bath 18:00

Student essay:
In the weekend. On saturday , Tom is going his homework in the 9:30. In the11:00, he is going watching TV. And going to the park in the afternoon. On sunday , Tom going to clean his room in 10:00. In the 14:00, he is going go playing basketball. Last, he is have a bath in 18:00.

Corrected essay:
On Saturday, Tom is going to do his homework at 9:30 a.m. At 11:00 a.m., he is going to watch TV, and go to the park in the afternoon. On Sunday, Tom is going to clean his room at 10:00 a.m. At 14:00, he is going to play basketball. Lastly, he is going to have a bath at 18:00.

Error analysis:
error_sentence: In the weekend. On saturday , Tom is going his homework in the 9:30.
correct_sentence: On Saturday, Tom is going to do his homework at 9:30 a.m.
error: In the weekend. On saturday
correction: On Saturday
error_type: Word Redundancy Error
error_severity: 5
error_description: ① Word Redundancy Error: According to the sentence's meaning, the text describes Tom's activities next weekend, and time adverbs "On Saturday" and "On Sunday" are already present later; repeating the time adverb "In the weekend" is unnecessary. This word redundancy causes a sentence structure error; the redundant 〈In the weekend.〉 needs to be deleted; ② Case Error: According to English writing conventions, days of the week are proper nouns and should be capitalized. Therefore, 〈saturday〉 needs to be changed to 『Saturday』 to comply with English writing standards.

error_sentence: On saturday , Tom is going his homework in the 9:30.
correct_sentence: On Saturday, Tom is going to do his homework at 9:30 a.m.
correction: to do
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to English grammar rules, the fixed phrase “be going to do something” means “plan to do something”. Here, 〈his homework〉 is equivalent to “something”, thus there is a nonfinite verb form error. 『to do』 needs to be added before 〈his homework〉 to mean “do homework” to conform to the fixed phrase and grammar rules.

error_sentence: On saturday , Tom is going his homework in the 9:30. In the11:00, he is going watching TV.
correct_sentence: On Saturday, Tom is going to do his homework at 9:30 a.m. At 11:00 a.m., he is going to watch TV, and go to the park in the afternoon.
error: in the 9:30. In the11:00
correction: at 9:30 a.m. At 11:00 a.m.
error_type: Preposition Error
error_severity: 4
error_description: ① Preposition Error: According to English grammar rules, specific time points should be modified by “at” not “in”; the original 〈in the〉 and 〈In the〉 need to be changed to 『at』 and 『At』 respectively to comply with English grammar rules; ② Space Error: According to English syntax rules, words in a sentence need separation to avoid run-ons. Therefore, a space is needed before the number in 〈In the11:00〉; it should be changed to 『At 11:00』; ③ Determiner Error: According to English expression conventions, specific times are usually followed by a time identifier to specify AM/PM. Therefore, 〈9:30.〉 and 〈11:00〉 need to be changed to 『9:30 a.m.』 and 『11:00 a.m.』 respectively to conform to the original sentence meaning and English expression standards.

error_sentence: In the11:00, he is going watching TV. And going to the park in the afternoon.
correct_sentence: At 11:00 a.m., he is going to watch TV, and go to the park in the afternoon.
error: watching TV. And going
correction: to watch TV, and go
error_type: Nonfinite Verb Form Error
error_severity: 5
error_description: ① Nonfinite Verb Form Error: According to English grammar rules, the fixed phrase “be going to do something” means “plan to do something”. After “be going”, an infinitive is required; 〈watching〉 needs to be changed to 『to watch』 to comply with grammar rules; similarly, the original 〈going〉 needs to be changed to 『go』 to be parallel with 〈watch〉 to comply with English syntax rules; ② Punctuation Error: According to the sentence's meaning, the clause introduced by 〈And〉 describes a specific action following 〈he is going to〉, parallel to 〈watch TV〉, and can share 〈he is going to〉. Thus, they can be combined into two parallel clauses within one main sentence. Here, 〈. And〉 needs to be changed to 『, and』 to comply with English syntax rules.

error_sentence: On sunday , Tom going to clean his room in 10:00.
correct_sentence: On Sunday, Tom is going to clean his room at 10:00 a.m.
error: sunday
correction: Sunday
error_type: Case Error
error_severity: 1
error_description: Case Error: According to English writing conventions, days of the week are proper nouns and should be capitalized. Therefore, there is a case error here. 〈sunday〉 needs to be changed to 『Sunday』 to comply with English writing standards.

error_sentence: On sunday , Tom going to clean his room in 10:00.
correct_sentence: On Sunday, Tom is going to clean his room at 10:00 a.m.
correction: is
error_type: Auxiliary Error
error_severity: 3
error_description: Auxiliary Error: According to English grammar rules, the fixed phrase “be going to do something” means “plan to do something”. The auxiliary verb “be” must be retained in this structure, so there is an auxiliary error here. The third-person singular present tense 『is』 needs to be added to conform to the context and grammar rules.

error_sentence: On sunday , Tom going to clean his room in 10:00. In the 14:00, he is going go playing basketball.
correct_sentence: On Sunday, Tom is going to clean his room at 10:00 a.m. At 14:00, he is going to play basketball.
error: in 10:00. In the
correction: at 10:00 a.m. At
error_type: Preposition Error
error_severity: 5
error_description: ① Preposition Error: According to English grammar rules, specific time points should be modified by “at” not “in”; the original 〈in〉 and 〈In the〉 need to be changed to 『at』 and 『At』 respectively to comply with English grammar rules; ② Determiner Error: According to English expression conventions, specific times are usually followed by a time identifier to specify AM/PM. Therefore, 〈10:00.〉 needs to be changed to 『10:00 a.m.』 to conform to the original sentence meaning and English expression standards.

error_sentence: In the 14:00, he is going go playing basketball.
correct_sentence: At 14:00, he is going to play basketball.
error: go playing
correction: to play
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to English grammar rules, the fixed phrase “be going to do something” means “plan to do something”. Here, 〈basketball〉 is equivalent to “something”, thus there is a nonfinite verb form error. 〈go playing〉 needs to be changed to 『to play』 to mean “play basketball” to conform to the fixed phrase and grammar rules.

error_sentence: Last, he is have a bath in 18:00.
correct_sentence: Lastly, he is going to have a bath at 18:00.
error: Last
correction: Lastly
error_type: Adverb Error
error_severity: 3
error_description: Adverb Error: According to English expression conventions, the sequence adverb “lastly” should be used instead of the adjective 〈Last〉 to mean “finally”. Therefore, there is an adverb error here. 〈Last〉 needs to be changed to 『Lastly』 to comply with English expression standards.

error_sentence: Last, he is have a bath in 18:00.
correct_sentence: Lastly, he is going to have a bath at 18:00.
correction: going to
error_type: Auxiliary Error
error_severity: 3
error_description: Auxiliary Error: According to English grammar rules, the fixed phrase “be going to do something” means “plan to do something”. Here, 〈have a bath〉 is equivalent to “do something”, thus there is a missing auxiliary verb error. 『going to』 needs to be added before 〈have a bath〉 to mean “going to take a bath” to conform to the original context and grammar rules.

error_sentence: Last, he is have a bath in 18:00.
correct_sentence: Lastly, he is going to have a bath at 18:00.
error: in
correction: at
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: According to English grammar rules, specific time points should be modified by “at” not “in”, thus there is a preposition error here. The original 〈in〉 needs to be changed to 『at』 to comply with English grammar rules.