Writing prompt: Written Expression.
Using the given vocabulary and sentence patterns, and referring to the picture, write a short essay.
Assume you are Tommy; please describe your life last weekend based on the picture and the hints.

Student essay:
Hello, I'm tommy. I have a wonderful weekend. I got up early on saturday, and then I played in the park with my best friends. In the afternoon, I played basketball, because it's my favorite sport. On sunday, I had to do my homework in the morning. Then my families and I cleaned the room, it's so tired. So planed to watch TV on evening to ralax to myself.

Corrected essay:
Hello, I'm Tommy. I had a wonderful weekend. I got up early on Saturday, and then I played in the park with my best friends. In the afternoon, I played basketball, because it's my favorite sport. On Sunday, I had to do my homework in the morning. Then my family and I cleaned the room. It was so tiring, so I planned to watch TV in the evening to relax.

Error analysis:
error_sentence: Hello, I'm tommy.
correct_sentence: Hello, I'm Tommy.
error: tommy
correction: Tommy
error_type: Spelling Error
error_severity: 1
error_description: Spelling Error: According to English writing conventions, names as proper nouns must be capitalized; the original word 〈tommy〉 does not follow this rule, so the lowercase common noun form is corrected to the proper noun 『Tommy』, which conforms to naming conventions.

error_sentence: I have a wonderful weekend.
correct_sentence: I had a wonderful weekend.
error: have
correction: had
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: According to English grammar rules, the time adverbial 〈last weekend〉 clearly indicates a past time frame, while the original sentence uses the present perfect tense 〈have〉, causing a tense contradiction; the non-durative verb 〈have〉 needs to be changed to the past tense 『had』 to form the simple past tense, thus maintaining tense consistency with the past time marker.

error_sentence: I got up early on saturday, and then I played in the park with my best friends.
correct_sentence: I got up early on Saturday, and then I played in the park with my best friends.
error: saturday
correction: Saturday
error_type: Case Error
error_severity: 1
error_description: Case Error: According to English writing conventions, names of days of the week are proper nouns and must be capitalized; the original word 〈saturday〉 violates this rule, so the all-lowercase form is corrected to the standard written form 『Saturday』. This modification complies with the standardized writing requirements for time nouns in English grammar.

error_sentence: On sunday, I had to do my homework in the morning.
correct_sentence: On Sunday, I had to do my homework in the morning.
error: sunday
correction: Sunday
error_type: Case Error
error_severity: 1
error_description: Case Error: According to English writing conventions, names of days of the week are proper nouns and must be capitalized; the original word 〈sunday〉 violates this rule, so the all-lowercase form is corrected to the standard written form 『Sunday』. This modification complies with the standardized writing requirements for time nouns in English grammar.

error_sentence: Then my families and I cleaned the room, it's so tired.
correct_sentence: Then my family and I cleaned the room.
error: families
correction: family
error_type: Noun Number Error
error_severity: 2
error_description: Noun Number Error: The noun 〈families〉 is plural, referring to multiple families, but based on the context, it refers to a single family; therefore, 〈families〉 needs to be changed to 『family』 to match the meaning.

error_sentence: Then my families and I cleaned the room, it's so tired. So planed to watch TV on evening to ralax to myself.
correct_sentence: Then my family and I cleaned the room. It was so tiring, so I planned to watch TV in the evening to relax.
error: , it's so tired. So planed
correction: . It was so tiring, so I planned
error_type: Verb Tense Error
error_severity: 4
error_description: ① Punctuation Error: According to English grammar rules, a comma splice is detected, incorrectly connecting two independent clauses with a comma 〈, it's〉; it needs to be changed to a structure separated by a period 『. It』 to comply with English punctuation standards. ② Verb Tense Error: Based on the principle of tense consistency in context, the original sentence's present tense 〈it's〉 conflicts with the narrative background and should be changed to the past tense 『was』 to align the predicate verb with the overall tense. ③ Adjective Error: Inappropriate word choice; 〈tired〉 describes a person's feeling, while here the characteristic of something is needed, so it is changed to the present participle adjective 『tiring』 to accurately convey the meaning 'causing fatigue'. ④ Punctuation Error: Based on sentence components, a necessary comma is missing when connecting the two clauses; a connecting comma should be added between 〈it's so tired〉 and 〈so planned to〉, and the capitalized 〈So〉 should be changed to lowercase 『so』 to fit the grammatical structure. ⑤ Pronoun Error: According to subject-verb-object structure requirements, the fragment 〈So planned to〉 lacks a subject; the subject 『I』 needs to be added to form the complete subject-verb structure 『so I planned to』, making the sentence components complete. ⑥ Spelling Error: According to English writing conventions, the correct past tense form of 'plan' should be 『planned』.

error_sentence: So planed to watch TV on evening to ralax to myself.
correct_sentence: It was so tiring, so I planned to watch TV in the evening to relax.
error: on
correction: in the
error_type: Preposition Error
error_severity: 2
error_description: ① Preposition Error: According to English time expression conventions, when generally referring to a part of the day (like evening/night), the fixed phrase 『in the evening』 should be used instead of 〈on evening〉; the original sentence's preposition 〈on〉 is incorrect and lacks an article, so 〈on evening〉 is changed to 『in the evening』 to conform to English idiomatic expression. ② Determiner Error: According to standard English time expressions, when indicating 'in the evening,' the definite article 『the』 is required before 〈evening〉 to specify a particular evening.

error_sentence: So planed to watch TV on evening to ralax to myself.
correct_sentence: It was so tiring, so I planned to watch TV in the evening to relax.
error: ralax to myself
correction: relax
error_type: Word Redundancy Error
error_severity: 3
error_description: ① Spelling Error: According to English spelling rules, the correct spelling of 〈ralax〉 should be 『relax』; the original word has an error in letter order. ② Word Redundancy Error: According to the usage rules for English reflexive pronouns, 〈to myself〉 is a redundant component in the sentence and does not conform to English expression habits; deleting it makes the sentence more concise.