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:
On Saturday, Tom is going to do his homework at 9:30a.m., Then at 11:00a.m., Tom is going to watch TV. In the afternoon, Tom is going to go to the park. He will plays velloyball with his friends. On Sunday, Tom is going to clean the room at 10:00a.m.. At 14:00p.m., Tom is going to play basketball with friends. Tom will go home after play basketball. At 18:00p.m., Tom is going to have a bath. What a fun week.

Corrected essay:
On Saturday, Tom is going to do his homework at 9:30 a.m. Then at 11:00 a.m., Tom is going to watch TV. In the afternoon, Tom is going to go to the park. He will play volleyball with his friends. On Sunday, Tom is going to clean his room at 10:00 a.m. At 2:00 p.m., Tom is going to play basketball with friends. Tom will go home after playing basketball. At 6:00 p.m., Tom is going to have a bath. What a fun weekend!

Error analysis:
error_sentence: On Saturday, Tom is going to do his homework at 9:30a.m., Then at 11:00a.m., Tom is going to watch TV.
correct_sentence: On Saturday, Tom is going to do his homework at 9:30 a.m.
error: 9:30a.m.,
correction: 9:30 a.m.
error_type: Space Error
error_severity: 1
error_description: ① Space Error: In time expressions, a space is needed between the time and "a.m."; in the original sentence 〈9:30a.m.〉, there is no space between the time 〈9:30〉 and "a.m.", so a space is added to conform to correct writing standards; ② Punctuation Error: The sentence following 〈9:30a.m.〉 is an independent clause with a subject and verb, so the comma after it should be changed to a period.

error_sentence: On Saturday, Tom is going to do his homework at 9:30a.m., Then at 11:00a.m., Tom is going to watch TV.
correct_sentence: Then at 11:00 a.m., Tom is going to watch TV.
error: 11:00a.m.
correction: 11:00 a.m.
error_type: Space Error
error_severity: 1
error_description: Space Error: In time expressions, a space is needed between the time and "a.m."; in the original sentence 〈11:00a.m.〉, there is no space between the time 〈11:00〉 and "a.m.", so a space is added to conform to correct writing standards.

error_sentence: He will plays velloyball with his friends.
correct_sentence: He will play volleyball with his friends.
error: plays velloyball
correction: play volleyball
error_type: Verb Tense Error
error_severity: 3
error_description: ① Verb Tense Error: According to English grammar rules, the auxiliary verb 〈will〉 in the simple future tense should be followed by the base form of the verb, so 〈plays〉 needs to be changed to 『play』 to comply with grammatical rules; ② Spelling Error: The word 〈velloyball〉 is misspelled and should be corrected to 『volleyball』 to conform to English writing standards; the word means "volleyball".

error_sentence: On Sunday, Tom is going to clean the room at 10:00a.m..
correct_sentence: On Sunday, Tom is going to clean his room at 10:00 a.m.
error: the
correction: his
error_type: Determiner Error
error_severity: 3
error_description: Determiner Error: Based on the prompt's requirement listing “clean his room 10:00”, the definite article 〈the〉 needs to be changed to 『his』 to meet the requirement.

error_sentence: On Sunday, Tom is going to clean the room at 10:00a.m.. At 14:00p.m., Tom is going to play basketball with friends.
correct_sentence: On Sunday, Tom is going to clean his room at 10:00 a.m. At 2:00 p.m., Tom is going to play basketball with friends.
error: 10:00a.m.. At 14:00p.m.
correction: 10:00 a.m. At 2:00 p.m.
error_type: Space Error
error_severity: 2
error_description: ① Space Error: In time expressions, a space is needed between the time and "a.m."; in the original sentence 〈10:00a.m.〉, there is no space between the time 〈10:00〉 and "a.m.", so a space is added to conform to correct writing standards; ② Punctuation Error: If "a.m." is at the end of a declarative sentence, no additional period is needed, so the following punctuation mark 〈.〉 is deleted; ③ Space Error: In time expressions, a space is needed between the time and "p.m."; in the original sentence 〈14:00p.m.〉, there is no space between the time 〈14:00〉 and "p.m.", so a space is added to conform to correct writing standards; ④ Number Error: In the 12-hour clock system, time is typically indicated using am (morning) and pm (afternoon). “14:00 p.m.” does not conform to English standards and should be changed to 『2:00 p.m.』 to match the conventional time format.

error_sentence: Tom will go home after play basketball.
correct_sentence: Tom will go home after playing basketball.
error: play
correction: playing
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to English grammar rules, the preposition 〈after〉 should be followed by the gerund form, so 〈play〉 is changed to 『playing』 to comply with nonfinite verb rules.

error_sentence: At 18:00p.m., Tom is going to have a bath.
correct_sentence: At 6:00 p.m., Tom is going to have a bath.
error: 18:00p.m.
correction: 6:00 p.m.
error_type: Space Error
error_severity: 2
error_description: ① Space Error: In time expressions, a space is needed between the time and "p.m."; in the original sentence 〈18:00p.m.〉, there is no space between the time 〈18:00〉 and "p.m.", so a space is added to conform to correct writing standards; ② Number Error: In the 12-hour clock system, time is typically indicated using am (morning) and pm (afternoon). “18:00 p.m.” does not conform to English standards and should be changed to 『6:00 p.m.』 to match the conventional time format.

error_sentence: What a fun week.
correct_sentence: What a fun weekend!
error: week.
correction: weekend!
error_type: Noun Error
error_severity: 3
error_description: ① Noun Error: According to the prompt's requirement to describe Tom's activities next weekend, 『weekend』 should be used instead of 〈week〉; ② Punctuation Error: This sentence is an exclamation, so an exclamation mark should replace the period at the end to better suit the expressive style.