Writing prompt: What Is a Good Teacher?

Student essay:
What is a good teacher?I think he should be nervous and shy as it was that he first lesson with us.But with the study life he should be strict and unsmiling.He like to give students a lot of tests and rich in knowledge.He will get on well with students and make friends with them,they will always talk about together.He cares about the students,and kind and patient.He is very popular.When you answer incorrectly that you don't feel stupid.He should teach the knowledge clear that even I can understand it.This is a good teacher.

Corrected essay:
What is a good teacher? I think he should be nervous and shy as it was his first lesson with us. But in daily study life he should be strict and unsmiling. He likes to give students a lot of tests and is rich in knowledge. He will get on well with students and make friends with them. They will always talk together. He cares about the students, and is kind and patient. He is very popular. When you answer incorrectly, you don't feel stupid. He should teach the knowledge clearly so that even I can understand it. This is a good teacher.

Error analysis:
error_sentence: What is a good teacher?I think he should be nervous and shy as it was that he first lesson with us.
correct_sentence: What is a good teacher? I think he should be nervous and shy as it was his first lesson with us.
error: teacher?I
correction: teacher? I
error_type: Space Error
error_severity: 1
error_description: Space Error: According to English punctuation usage rules, a space should be kept after a question mark, so 〈teacher?I〉 is modified to 『teacher? I』 to meet writing format requirements.

error_sentence: What is a good teacher?I think he should be nervous and shy as it was that he first lesson with us.
correct_sentence: I think he should be nervous and shy as it was his first lesson with us.
error: that he
correction: his
error_type: Word Redundancy Error
error_severity: 5
error_description: ① Word Redundancy: According to English clause structure rules, the relative pronoun 〈that〉 in 〈as it was that he first lesson〉 is redundant and does not conform to grammatical structure; it should be directly deleted to keep the sentence concise and correct; ② Pronoun Error: According to English possessive usage rules, the noun phrase 〈first lesson〉 needs to be modified by a possessive adjective, so the nominative pronoun 〈he〉 is changed to the possessive 『his』, forming the standard expression 『his first lesson』.

error_sentence: But with the study life he should be strict and unsmiling.
correct_sentence: But in daily study life he should be strict and unsmiling.
error: with the
correction: in daily
error_type: Adjective Error
error_severity: 4
error_description: ① Preposition Error: According to English preposition collocation rules, 『in』 should be used instead of 〈with〉 to indicate a time background, so 〈with our study life〉 is changed to 『in our daily study life』 to make the meaning more accurate; ② Adjective Error: Based on the need for contextual comparison, the generic determiner 〈the〉 is changed to the descriptive adjective 『daily』, forming 『daily study life』 to create an effective contrast with the specificity of "the first lesson" in the preceding text.

error_sentence: He like to give students a lot of tests and rich in knowledge.
correct_sentence: He likes to give students a lot of tests and is rich in knowledge.
error: like
correction: likes
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: Subject-Verb Agreement Error: According to English subject-verb agreement principles, the third-person singular subject 〈He〉 requires the predicate verb to be in the third-person singular form, so the base form verb 〈like〉 is changed to 『likes』 to comply with third-person singular rules.

error_sentence: He like to give students a lot of tests and rich in knowledge.
correct_sentence: He likes to give students a lot of tests and is rich in knowledge.
correction: is
error_type: Sentence Structure Error
error_severity: 3
error_description: Sentence Structure Error: According to English predicative structure rules, the adjective phrase 〈rich in knowledge〉 needs to be connected to the subject by a linking verb, so 『is』 is added after the coordinating conjunction 〈and〉 to form the complete predicate 『is rich in knowledge』.

error_sentence: He will get on well with students and make friends with them,they will always talk about together.
correct_sentence: He will get on well with students and make friends with them. They will always talk together.
error: ,they
correction: . They
error_type: Punctuation Error
error_severity: 3
error_description: Punctuation Error: According to English sentence structure rules, two independent clauses 〈make friends with them〉 and 〈they will talk〉 need to be separated by a period, so the comma is changed to 『make friends with them. They will』.

error_sentence: He will get on well with students and make friends with them,they will always talk about together.
correct_sentence: They will always talk together.
error: about
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: According to English verb collocation rules, 〈talk〉 can be directly followed by the adverb 〈together〉 to mean "talk together", without needing the preposition 〈about〉, so the redundant 〈about〉 is deleted to make the expression more concise and accurate.

error_sentence: He cares about the students,and kind and patient.
correct_sentence: He cares about the students, and is kind and patient.
correction: is
error_type: Sentence Structure Error
error_severity: 3
error_description: Sentence Structure Error: According to English parallel predicate structure rules, the adjective phrase 〈kind and patient〉 needs to be connected by a linking verb, so the linking verb 『is』 is added after the coordinating conjunction 〈and〉 to form the complete predicative structure 『is kind and patient』.

error_sentence: When you answer incorrectly that you don't feel stupid.
correct_sentence: When you answer incorrectly, you don't feel stupid.
error: that
correction: ,
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English adverbial clause punctuation rules, the adverbial clause of time 〈When you answer incorrectly〉 and the main clause need to be separated by a comma, so the incorrect conjunction 〈that〉 is changed to 『When you answer incorrectly, you don't feel stupid.』 to comply with punctuation norms.

error_sentence: He should teach the knowledge clear that even I can understand it.
correct_sentence: He should teach the knowledge clearly so that even I can understand it.
error: clear
correction: clearly so
error_type: PoS Confusion Error
error_severity: 5
error_description: ① PoS Confusion: According to English adverb modification rules, an adverb form should be used to modify the verb 〈teach〉, so the adjective 〈clear〉 is changed to the adverb 『clearly』 to correctly express the teaching manner; ② Conjunction Error: According to English logical connection rules, the purposive conjunction 『so』 needs to be added to clearly express the cause-and-effect relationship, making the sentence meaning more coherent and complete.