Writing prompt: Written Expression.
Following the sequence of pictures below, write a passage titled 'How to make a banana milk shake?'.
How to make a banana milk shake?
Do you like a banana milk shake? And do you know how to make it? If you don't know, let me tell you.

Student essay:
First , we can peel the banana and we cut up it. Then we put banana into the blender, pour milk into. Turn on. We can drink.

Corrected essay:
First, we can peel the banana and cut it up. Then we put the banana into the blender and pour milk into it. I turn it on. We can drink.

Error analysis:
error_sentence: First , we can peel the banana and we cut up it.
correct_sentence: First, we can peel the banana and cut it up.
error: we cut up it
correction: cut it up
error_type: Word Redundancy Error
error_severity: 4
error_description: ① Word Order Error: According to English grammar rules, the object 〈it〉 of the phrasal verb 〈cut up〉 should be placed between the verb and the adverb; therefore, 〈cut up it〉 needs to be changed to 『cut it up』 to comply with English grammar rules; ② Word Redundancy Error: According to English syntax rules, when the same subject performs two actions in the same sentence, the subject does not need to be repeated. Since the preceding clause already has the subject 〈we〉, the redundant subject before 〈cut it up〉 needs to be deleted to comply with English syntax rules.

error_sentence: Then we put banana into the blender, pour milk into.
correct_sentence: Then we put the banana into the blender and pour milk into it.
correction: the
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: According to English grammar rules, when a singular countable noun refers to a specific item, it requires a definite article before it. Therefore, there is a determiner error here. The definite article 『the』 needs to be added before 〈banana〉 to indicate specificity, complying with the original meaning and English grammar rules.

error_sentence: Then we put banana into the blender, pour milk into.
correct_sentence: Then we put the banana into the blender and pour milk into it.
error: ,
correction: and
error_type: Conjunction Error
error_severity: 3
error_description: Conjunction Error: According to English syntax rules, the original clauses 〈Then we put the banana into the blender〉 and 〈 pour milk into〉 are the last two parallel clauses before the end of the same compound sentence, and there is a close sequential relationship in meaning, requiring connection with a comma and a conjunction. Therefore, there is a conjunction error here. The coordinating conjunction 『and』 needs to be added before the parallel clause 〈 pour milk into〉 to comply with English syntax rules and ensure close semantic connection.

error_sentence: Then we put banana into the blender, pour milk into. Turn on.
correct_sentence: Then we put the banana into the blender and pour milk into it. I turn it on.
error: . Turn
correction: it. I turn it
error_type: Sentence Structure Error
error_severity: 4
error_description: ① Sentence Structure Error: According to the original meaning, it means "pour milk into the blender," so the pronoun 『it』 referring to the blender needs to be added after the preposition 〈into〉 to complete the sentence structure and match the original meaning; According to the original meaning, it means "I turn on the blender," the original sentence lacks a subject, so the subject 『I』 needs to be added to form a complete subject-verb structure indicating the agent of the action; according to English writing conventions, except for proper nouns, the first letter of a word not at the beginning of a sentence should not be capitalized. Therefore, 〈Turn〉 needs to be changed to 『turn』 to comply with English writing conventions; ② Pronoun Error: According to the original meaning, it means "I turn on the blender," a pronoun is needed here to specify the recipient of the action. Furthermore, according to English grammar rules, the object 〈it〉 of the phrasal verb 〈turn on〉 should be placed between the verb and the adverb; therefore, 〈turn on〉 needs to be changed to 『turn it on』 to comply with the original meaning and grammar rules.