Writing prompt: Written Expression. Assume you are Lin Chen and have just made a new pen pal named Ted. Please write a letter to him describing your personal background, family situation, and your plan to visit Beijing over the summer. Writing hints: Tian'anmen Square, the Palace Museum, Beijing Roast Duck.
Dear Ted,
________
Welcome to China. Have a good day!
Yours,
Lin Chen

Student essay:
Dear Ted, Hi, I'm Lin Chen. I'm 13 years old now. I live in Xuzhou and study at the Sunshine Middle School. This summer, my family and I will go to Beijing. First day, we will visit the Tian'anmen Square. The next day, we will go to the Place Museum and Wangfujing Street to buy some things. Finally, we will eat Beijing Roast Duck. It will be a great travel. Welcome to China. Have a good day! Yours, Lin Chen

Corrected essay:
Dear Ted,
Hi, I'm Lin Chen. I'm 13 years old now. I live in Xuzhou and study at the Sunshine Middle School. This summer, my family and I will go to Beijing. On the first day, we will visit Tian'anmen Square. The next day, we will go to the Palace Museum and Wangfujing Street to buy some things. Finally, we will eat Beijing Roast Duck. It will be a great trip. Welcome to China. Have a good day!
Yours, Lin Chen

Error analysis:
error_sentence: Dear Ted, Hi, I'm Lin Chen.
correct_sentence: Dear Ted,
Hi, I'm Lin Chen.
correction: 

error_type: Format Error
error_severity: 3
error_description: Format Error: According to English letter writing conventions, the salutation 〈Dear Ted,〉 is the beginning of the letter and should be followed by a line break to separate it from the body content. Therefore, a line break 『
』 needs to be added after the salutation, changing it to 『Dear Ted,
』 to ensure the format meets standard requirements.
error_sentence: First day, we will visit the Tian'anmen Square.
correct_sentence: On the first day, we will visit Tian'anmen Square.
error: First
correction: On the first
error_type: Preposition Error
error_severity: 3
error_description: ① Preposition Error: According to English rules for expressing time, the preposition 『on』 should be used before a specific day. The time adverbial 〈First day〉, placed alone at the beginning of the sentence and separated by a comma, lacks the necessary preposition; it needs to be corrected by adding the preposition to 『On the first day』; ② Determiner Error: According to English grammar rules, the ordinal number 〈first〉 must be preceded by the definite article 『the』 when indicating a specific order. Therefore, the definite article 『the』 needs to be added before the ordinal number 〈first〉, changing it to 『On the first day』.
error_sentence: First day, we will visit the Tian'anmen Square.
correct_sentence: On the first day, we will visit Tian'anmen Square.
error: the
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: According to the grammatical rules for English proper nouns, when a specific place name like 〈Tian'anmen Square〉 serves as a unique geographical identifier, it does not require an article before it. Therefore, the redundant definite article 〈the〉 needs to be deleted, changing 〈the Tian'anmen Square〉 to 『Tian'anmen Square』 to ensure adherence to the correct expression of English proper nouns.
error_sentence: The next day, we will go to the Place Museum and Wangfujing Street to buy some things.
correct_sentence: The next day, we will go to the Palace Museum and Wangfujing Street to buy some things.
error: Place
correction: Palace
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to the standard writing conventions for English proper nouns, 〈Place〉 in 〈Place Museum〉 is a spelling error; the correct name should be 〈Palace Museum〉. Therefore, 〈Place〉 is corrected to 『Palace』 to ensure the spelling of the proper noun conforms to standard English expression norms.
error_sentence: It will be a great travel.
correct_sentence: It will be a great trip.
error: travel
correction: trip
error_type: Noun Error
error_severity: 3
error_description: Noun Error: According to the semantic distinction between English nouns, 〈travel〉 is an uncountable noun, generally referring to the act or concept of "travel"; whereas 〈trip〉 is a countable noun, specifically referring to a particular journey. Given that the context here clearly points to the specific "trip to Beijing," 〈travel〉 should be changed to 『trip』 to accurately convey the meaning of a specific journey, aligning with the precise usage norms of English vocabulary.
error_sentence: Have a good day! Yours, Lin Chen
correct_sentence: Have a good day!

correction: 

error_type: Format Error
error_severity: 3
error_description: Format Error: According to standard English letter format requirements, the closing salutation 〈Yours,〉 needs a line break separating it from the preceding text. Therefore, a line break needs to be added before 〈Yours,〉, changing it to 『Have a good day!
Yours,』, to ensure the letter format complies with the layout norms of formal written documents.