1. Introduction

In the context of globalization, the importance of English as an international language has become increasingly prominent [1]. In recent years, with the rapid development and iterative update of artificial intelligence technology, Artificial Intelligence(AI) has penetrated various aspects of people’s jobs and lives. People's attention to teaching support tools like intelligent teaching systems has spread throughout the entire educational environment as the usage of AI and other technology in education has developed [2]. In the field of education, Al can assist teachers in evaluating students' academic performance and help teachers prepare lessons, which have been very common in Shanghai. Iwrite, based on artificial intelligence, is an English writing teaching and evaluation system that includes writing teaching, intelligent correction and automatic grading, which can play a great role in English writing teaching [3]. Nowadays, the potential of chatbots in education, especially in simulating human interactions and generating human-like texts, has been widely highlighted [4]. In reviewing previous studies, the author found that ChatGPT is used in most of the literature. Preparing lessons for teachers is a core part of the daily work of educators, which requires a lot of time and energy. ChatGPT, as a language processing tool, has been widely used in teaching plan design [5]. As Lotze argues, AI diagnostic systems still need to meet some key criteria (i.e., spontaneity, creativity, and shared knowledge) before they can serve as a real-life language teacher. Although AI has great potential to facilitate English as a Foreign Language (EFL), the integration of new technologies into classroom teaching generally requires teachers to overcome multilayer barriers [6]. Hence, along with providing more technical support to upgrade diagnostic systems of AI chatbots, future work is required to empirically investigate their adaptability to different language proficiency levels and various instructional contexts [7]. In order to explore whether AI-based iWrite assisted English writing teaching mode can effectively improve students’ English writing ability, the study adopts two different teaching methods to compare. In this paper, the author pays attention to ERNIE Bot 4.0 and ZECOBA 4o AI chat, trying to find out whose writing ability is better. The author sets Shanghai high school entrance examination English composition in 2022, 2023, 2024 as an example, letting two Al intelligent software generate relevant model essays, through the form of tables to compare them in words, grammar, special sentence patterns and etc., in order to find which software can better assist teachers in the teaching of writing. With AI technology tools and teacher coaching, students can make significant progress in their English learning experiences [8].

2. Research Design

2.1. AI Model Selection

In terms of software selection, the author chose two AI intelligence software developed by Chinese developers, because when looking up a lot of literature, the author found that there was little research on AI software in China.

However, the author wants to compare the intelligent software independently developed by Chinese developers, so as to see the continuous progress and strength of China's independent research capacity.

ERINE Bot is a generative dialogue product launched by Baidu based on ERINE big model technology. It can talk with people, interact with them, answer questions, assist creation, and help people get information efficiently and conveniently.

Although ZECOBA Al chat is not well known at present, it is an intelligent software independently developed and established by Shanghai Technology Company. In this topic, the author takes the English composition for the Senior high School entrance examination in Shanghai in the past two years as an example, so it may have a better understanding of some local English learning modes in Shanghai and generate more intelligent essay models.

2.2. Evaluation Criteria

1. Vocabulary sources. How many advanced words are beyond the scope of the exam syllabus? In this way, the advanced character of Al-generated model words is judged.

2. Will be judged by the emphasis sentence, inversion sentence, special clause, and several aspects.

3. Precision. Evaluate whether the model essay meets the standards and requirements, and whether the writing is coherent and smooth.

2.3. Text Sources

This paper takes the English composition questions of the 2022-2024 Shanghai high School Entrance exam as an example and lets Al generate model essays.

2022: Your school will add a student activity room, there are six ideas about the use of the activity room. You need to choose one of them and give your reasons. The situation is: The school is trying to find out the students' intentions through the school newspaper. Suppose you are Li Hua, please write an email to Miss Zhang in the school newspaper, indicating that you like it best one of the ideas, and explain why. The six ideas about the use of the activity room include: readers' home, labor workshop, art and sports world, charity bazaar, science and innovation hut and spiritual station. Candidates need to choose one of the ideas, explain why they chose the idea, and how it will benefit students.

2023: Your community plans to hold a training program called "time management" and is asking for comments on the training program. If you are Li Hua, a junior student, please read the following training program and write an email to Mr. Wang, the community leader. The email should contain the following content:

(1) Whether you will attend the training and give a brief explanation of the reasons

(2) Suggest changes to one item in the program and how it will benefit students.

Training Plan

2024: Suppose you are Li Feng and you are going to say goodbye to Frank, a foreign student you met at the school International Exchange Festival. You have given him a gift with Chinese elements. Please write down what you say to him on the gift card. This essay question requires the examinee to use his imagination to create a practical essay based on the specific situation. The examinee should consider the name, features and functions of the gift, as well as the reasons for choosing the gift.

3. Result & Conclusion

3.1. Compositions Produced by Two AI Models

Table 1 is the English compositions completed by ZECOBA 4o Chat according to the writing topic of 2022-2024.

Table 1: English compositions from 2022-2024 completed by ZECOBA 4o Chat

Table 2 is the English compositions completed by ERINE 4.0 Bot according to the writing topic of 2022-2024.

Table 2: English compositions from 2022-2024 completed by ERINE 4.0 Bot

3.2. Data Analysis

Table 3 is based on Table1 and Table2, comparing the compositions produced by ERINE 4o Bot and ZECOBA 4.0 in the following aspects.

Table 3: Comparison of the results

First, ZECOBA has more words out of the syllables, like “preference”, “enhance”, “practical”, “innovation”, “collaborate”, “management”, “effectively”, “components”, “engaging”, “unforgettable”, “calligraphy”, “significant”, “endeavors”, etc. (see Table 3).

Second, seeing from the special sentence patterns, ZECOBA has non- non-restrictive attributive clause, an objective clause and some adverbial clauses while ERINE has an adverbial clause and objective clause, too (see Table 3).

Third, ZECOBA uses more diversified conjunctions like “not only… but also…” “moreover”, “additionally”, and “whenever”, while ERINE just uses “also”, “so”, and “like” (see Table 3).

4. Conclusion

According to the data shown in the table above, the following conclusions can be drawn:

First, ZECOBA is more advanced and uses more words other than the syllabus. The words of ERINE are relatively simple, most of them belong to the scope of the exam, which belongs to the standard words.

Secondly, from the point of view of special sentence patterns, both use attributive clauses, adverbial clauses, object clauses and other basic clauses, and there is no big difference in special sentence patterns.

Thirdly, in terms of textual connectives, the connectives of ZECOBA are more diversified and advanced, while the conjunctions of ERINE are more simple.

Fourth, in terms of the number of words, the number of words is generally more than the specified number of words required by the test.

Overall, ERINE’s ability in the generation of junior high school essay model is more unstable, and its words and sentences are more regular, which can not be used as a good middle school exam model to be used as a reference; The generative ability of ZECOBA is relatively stable, and its words and sentences, including the fluency of writing. It has a good reference value. Therefore, the author thinks it can be better used as an auxiliary tool for junior middle school English teachers in Shanghai to generate compositions.

However, this study also has some limitations, it can’t know whether the two Al tools have a better teaching aid role in English essay writing in higher education, and it remains to be explored in this aspect.