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:
Tom has fun weekend He is going to do his homework at 9:30. He will is going to watch TV , and is going to the park in the after on Saturday On Sunday, He will is going to cleam his room at10:00 and is going to play basketabll. At 18:00 he must to have a bath and go to sleep at 21:00 because he goes to school tommor

Corrected essay:
Tom is going to have a fun weekend. He is going to do his homework at 9:30. He will watch TV, and is going to go to the park in the afternoon on Saturday. On Sunday, he will clean his room at 10:00 and is going to play basketball. At 18:00, he has to have a bath and go to sleep at 21:00 because he needs to go to school tomorrow.

Error analysis:
error_sentence: Tom has fun weekend He is going to do his homework at 9:30.
correct_sentence: Tom is going to have a fun weekend.
error: has
correction: is going to have a
error_type: Verb Tense Error
error_severity: 3
error_description: ① Verb Tense Error: According to the prompt's requirement to describe future events (weekend plans), the original sentence's use of the simple present tense verb 〈has〉 does not conform to tense rules. According to English grammar rules, it should be changed to the future tense structure 『is going to have』 to accurately express the subject's future planned action; ② Determiner Error: As a singular countable noun, 〈weekend〉 usually requires a determiner before it. Here, the meaning is to have a fun weekend, so 『a』 needs to be added for generic reference and to satisfy grammatical requirements.

error_sentence: Tom has fun weekend He is going to do his homework at 9:30.
correct_sentence: Tom is going to have a fun weekend.
correction: .
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English grammar rules, two complete independent clauses 〈Tom has fun weekend〉 and 〈He is going to...〉 must be separated by a period. Therefore, a terminal punctuation mark 『.』 needs to be added after 〈weekend〉 to split the original sentence into two grammatically correct independent sentences, ensuring clear sentence boundaries and correct structure.

error_sentence: He will is going to watch TV , and is going to the park in the after on Saturday On Sunday, He will is going to cleam his room at10:00 and is going to play basketabll.
correct_sentence: He will watch TV, and is going to go to the park in the afternoon on Saturday.
error: is going to
error_type: Word Redundancy Error
error_severity: 3
error_description: Word Redundancy Error: According to English expression norms, the simultaneous appearance of 〈is going to〉 and 〈will〉 in the sentence causes redundant expression of the future tense. Therefore, 〈is going to〉 is deleted, retaining 『will』 to simplify the sentence structure while ensuring the accuracy of the future tense meaning and conciseness of expression.

error_sentence: He will is going to watch TV , and is going to the park in the after on Saturday On Sunday, He will is going to cleam his room at10:00 and is going to play basketabll.
correct_sentence: He will watch TV, and is going to go to the park in the afternoon on Saturday.
correction: to go
error_type: Sentence Structure Error
error_severity: 3
error_description: Sentence Structure Error: According to English grammar rules, using the present continuous tense to express the future indicates something about to happen; here, it refers to next weekend, so the simple future tense is preferred, hence the 'be going to do' structure. The necessary nonfinite verb is missing before 〈to the park〉, so 『to go』 needs to be added to form the structure 『is going to go to the park』, which conforms to grammatical norms and fully expresses the meaning of 'planning to go to the park'.

error_sentence: He will is going to watch TV , and is going to the park in the after on Saturday On Sunday, He will is going to cleam his room at10:00 and is going to play basketabll.
correct_sentence: He will watch TV, and is going to go to the park in the afternoon on Saturday.
error: after
correction: afternoon
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: As a preposition/subordinating conjunction, 〈after〉 cannot independently express a time concept, whereas the sentence requires a noun to indicate a time period. According to English vocabulary norms, the preposition/subordinating conjunction 〈after〉 needs to be corrected to the noun 『afternoon』 to accurately convey the time information and maintain syntactic validity.

error_sentence: He will is going to watch TV , and is going to the park in the after on Saturday On Sunday, He will is going to cleam his room at10:00 and is going to play basketabll.
correct_sentence: He will watch TV, and is going to go to the park in the afternoon on Saturday.
correction: .
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: 〈He will watch TV, and is going to go to the park in the afternoon on Saturday〉 is a complete sentence, but it lacks the necessary period 〈.〉 at the end. 『.』 needs to be added to comply with written expression punctuation norms. According to English punctuation rules, when listing consecutive dates or events, different time adverbials should be separated by a period for distinction. Therefore, a period 『.』 is added after 〈on Saturday〉, changing the run-on structure to 『on Saturday. On Sunday』 to clearly indicate two independent time units.

error_sentence: He will is going to watch TV , and is going to the park in the after on Saturday On Sunday, He will is going to cleam his room at10:00 and is going to play basketabll.
correct_sentence: On Sunday, he will clean his room at 10:00 and is going to play basketball.
error: He will is going to cleam
correction: he will clean
error_type: Word Redundancy Error
error_severity: 4
error_description: ① Word Redundancy Error: According to English future tense expression norms, both 〈will〉 and 〈is going to〉 indicate the future tense, causing semantic repetition. Therefore, the latter is deleted, retaining 『will』 to maintain tense conciseness; ② Spelling Error: According to English vocabulary spelling rules, 〈cleam〉 does not conform to word formation patterns. Based on the sentence meaning, it should express the meaning 'clean', so it is corrected to the proper spelling form 『clean』.

error_sentence: He will is going to watch TV , and is going to the park in the after on Saturday On Sunday, He will is going to cleam his room at10:00 and is going to play basketabll.
correct_sentence: On Sunday, he will clean his room at 10:00 and is going to play basketball.
error: at10:00
correction: at 10:00
error_type: Space Error
error_severity: 2
error_description: Space Error: According to English writing conventions, a space is required between the preposition and the number in the time expression 〈at10:00〉. Therefore, the run-on form 〈at10:00〉 is changed to the standard format 『at 10:00』 to meet written expression requirements.

error_sentence: He will is going to watch TV , and is going to the park in the after on Saturday On Sunday, He will is going to cleam his room at10:00 and is going to play basketabll.
correct_sentence: On Sunday, he will clean his room at 10:00 and is going to play basketball.
error: basketabll
correction: basketball
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to English vocabulary spelling rules, the word 〈basketabll〉 has a letter order error; the correct spelling should be 『basketball』. Therefore, the incorrect spelling 〈basketabll〉 is corrected to the proper form 『basketball』 to conform to standard English spelling norms.

error_sentence: At 18:00 he must to have a bath and go to sleep at 21:00 because he goes to school tommor
correct_sentence: At 18:00, he has to have a bath and go to sleep at 21:00 because he needs to go to school tomorrow.
error: he must
correction: , he has
error_type: Auxiliary Error
error_severity: 4
error_description: ① Punctuation Error: According to English grammar rules, when the time adverbial 〈At 18:00〉 is at the beginning of the sentence, it is usually separated from the main clause by a comma. Therefore, the missing punctuation is added, changing it to 『At 18:00,』 to comply with English punctuation usage norms; ② Auxiliary Error: According to English modal verb usage rules, the modal verb 〈must〉 expressing 'necessity' should be followed by the base form of the verb, whereas the original sentence uses the to-infinitive 〈to have〉. 'have to do' can be used to express 'have to', which is close in meaning to the original sentence. Also, according to the subject-verb agreement principle, the subject 〈he〉 requires 『has to』 to express the necessity of taking a bath.

error_sentence: At 18:00 he must to have a bath and go to sleep at 21:00 because he goes to school tommor
correct_sentence: At 18:00, he has to have a bath and go to sleep at 21:00 because he needs to go to school tomorrow.
error: goes
correction: needs to go
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: According to English tense usage rules, the verb 〈goes〉 is the third-person singular simple present tense form and cannot express the obligation within the future time frame of 'tomorrow'. Therefore, it is changed to 『needs to go』 to accurately convey future necessity while maintaining consistency with the third-person singular subject.

error_sentence: At 18:00 he must to have a bath and go to sleep at 21:00 because he goes to school tommor
correct_sentence: At 18:00, he has to have a bath and go to sleep at 21:00 because he needs to go to school tomorrow.
error: tommor
correction: tomorrow.
error_type: Punctuation Error
error_severity: 4
error_description: ① Spelling Error: According to English vocabulary spelling rules, the word 〈tommor〉 has missing letters and order errors; the correct spelling should be 『tomorrow』. Therefore, the incorrect spelling 〈tommor〉 is corrected to the proper form 『tomorrow』 to conform to standard English spelling norms; ② Punctuation Error: According to English punctuation rules, a declarative sentence must end with a period as the terminal punctuation. Therefore, the missing period is added at the end of the sentence 『.』 to ensure the completeness of the sentence structure.