Writing prompt: My Teacher

Student essay:
My spoken English teacher from Canada named Mr.Smith. Now let 'me tell you something about him. He has a pair of glasses on his face. He is medium build and very young. We all think he is Handsome. He is an outgoing man. His teaching method is well known to us. His class is lively and interesting because of his humor. As a teacher,he is rich in knowledge. At the same time,he is also strict with us in our study. He makes a great contribution to the improvement of our English speaking ability. As a friend,his colour is different from us,but I don't feel like he was a stranger. He is considered as an enthusiastic man in the class. He often helps others. We get along very well. We all like him because of his enthusiasm and responsibility for the work. I wish he can live a happier life in China.

Corrected essay:
My spoken English teacher from Canada is named Mr. Smith. Now let me tell you something about him. He has a pair of glasses on his face. He is of medium build and very young. We all think he is handsome. He is an outgoing man. His teaching method is well known to us. His class is lively and interesting because of his humor. As a teacher, he is rich in knowledge. At the same time, he is also strict with us in our study. He makes a great contribution to the improvement of our English speaking ability. As a friend, his colour is different from ours, but I don't feel like he is a stranger. He is considered as an enthusiastic man in the class. He often helps others. We get along very well. We all like him because of his enthusiasm and responsibility for the work. I wish he could live a happier life in China.

Error analysis:
error_sentence: My spoken English teacher from Canada named Mr.Smith.
correct_sentence: My spoken English teacher from Canada is named Mr. Smith.
correction: is
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: According to basic English sentence structure, 〈named Mr.Smith〉 is detected as a past participle phrase that cannot independently serve as a predicate. The linking verb 『is』 needs to be added to form a complete subject-copula-predicative structure, corrected to 『He is named Mr. Smith』 (passive voice structure: be + past participle).

error_sentence: Now let 'me tell you something about him.
correct_sentence: Now let me tell you something about him.
error: '
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: Analyzing the structure 〈'me〉, it is found that the single quote is used non-standardly. According to the English writing rules for pronouns as objects, it should be written directly as 『let me』, deleting all interfering punctuation marks.

error_sentence: He is medium build and very young.
correct_sentence: He is of medium build and very young.
correction: of
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: When 〈medium build〉 serves as a predicative, according to English adjective phrase construction rules, the preposition 『of』 must be used to connect the descriptive adjective with the noun, fully corrected to 『of medium build』, standard collocation: “of + adjective + noun”.

error_sentence: We all think he is Handsome.
correct_sentence: We all think he is handsome.
error: Handsome
correction: handsome
error_type: Case Error
error_severity: 1
error_description: Case Error: As 〈Handsome〉 is a common adjective and not at the beginning of a sentence, according to general English capitalization rules, it should be uniformly changed to lowercase 『handsome』, unless used for proper nouns.

error_sentence: As a friend,his colour is different from us,but I don't feel like he was a stranger.
correct_sentence: As a friend, his colour is different from ours, but I don't feel like he is a stranger.
error: us
correction: ours
error_type: Pronoun Error
error_severity: 3
error_description: Pronoun Error: After the comparative structure 〈different from〉, according to the English principle of consistent comparison objects, the possessive pronoun 『ours』 must be used to refer to the item of comparison, forming a correct corresponding relationship with the objective personal pronoun 〈us〉.

error_sentence: As a friend,his colour is different from us,but I don't feel like he was a stranger.
correct_sentence: As a friend, his colour is different from ours, but I don't feel like he is a stranger.
error: was
correction: is
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: When the main clause uses the present tense 〈don't feel〉, the subordinate clause needs to maintain tense agreement. Change the past tense 〈was〉 to the present tense 『is』 to form a logically coherent present tense declarative sentence 『he is a stranger』, expressing a current continuous state.

error_sentence: I wish he can live a happier life in China.
correct_sentence: I wish he could live a happier life in China.
error: can
correction: could
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: The object clause introduced by 〈wish〉 needs to follow subjunctive mood rules; when expressing a wish contrary to present fact, the predicate verb uses the past tense (be verbs uniformly use were). Therefore, 〈can〉 is changed to 『could』, standard structure: 『I wish he could...』 to adapt to the usage of the subjunctive mood.