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Does using ChatGPT for schoolwork harm students’ ability to think for themselves? A new study from researchers at the Massachusetts Institute of Technology’s Media Lab, in Cambridge, has returned concerning results.

To conduct the study, researchers divided 54 adults into several groups. Each person was asked to write several essays. People in the first group could use ChatGPT. People in the second group could use Google’s search engine. And people in the last group could use only their minds.

Researchers used a medical device called an EEG to monitor the subjects’ brains. Of the three groups, ChatGPT users had the lowest level of brain activity. They showed decreased brain activity with each essay, and remembered little of what they wrote.

The study was relatively small. But researcher Nataliya Kosmyna felt it was important to release the results. She worries that AI tools will be increasingly used in school settings. “That would be absolutely bad and harmful,” she says. “Developing brains are at the highest risk.”

Kosmyna wanted to explore the impact of using AI for schoolwork. So she and her team told subjects to write the essays based on test prompts (提示). They found that people in the ChatGPT group delivered similar essays. The essays lacked original ideas, and depended on the same phrases. Two English teachers who reviewed these essays called them “soulless”.

“Education on how we use these tools — and promoting the fact that your brain does need to develop in a more analog (模拟的) way — is absolutely important,” Kosmyna says.

1.1.How many groups were the adults divided into?

A Two groups.

B Three groups.

C Four groups.

D Five groups.

解析：选B。B 细节理解题。根据第二段中的“the first group”“the second group” “the last group”可知，这54名成年人被分成了三组进行研究。故选B。

2.2.What does the underlined word “decreased” mean?

A Recycled.

B Changed.

C Reduced.

D Increased.

解析：选C。C 词义猜测题。根据划线词所在句的前文“ChatGPT users had the lowest level of brain activity”ChatGPT用户的大脑活动水平最低，可知他们每写完一篇文章时大脑活跃度就会下降。由此可推断，decreased表示“下降的，减少的”，与reduced意思相近。故选C。

3.3.What is Nataliya Kosmyna’s concern about AI tools?

A They are too expensive for schools.

B They harm developing brains.

C They are not accurate enough.

D They are difficult to use.

解析：选B。B 推理判断题。根据第四段中“She worries that AI tools will be increasingly used in school settings. ‘That would be absolutely bad and harmful,’ she says. ‘Developing brains are at the highest risk.’”可知，她担心人工智能工具会在学校环境中得到更广泛的应用，她认为那将会是非常糟糕且有害的情况，而且（学生）正在发育的脑部受到的影响最大。由此可推断，她非常担心AI工具损害大脑发育。故选B。

4.4.How were the ChatGPT users’ essays?

A They were similar and dull.

B They were full of original ideas.

C They were different from each other.

D They were rich in personal stories.

解析：选A。A 细节理解题。根据第五段中的“They found that people in the ChatGPT group delivered similar essays. The essays lacked original ideas, and depended on the same phrases.”可知，使用 ChatGPT 的那组人员所撰写的论文内容相似，这些论文缺乏新颖的观点，且都重复使用着相同的语句，并且第五段最后一句提到，两名老师认为这些文章“没有灵魂”。故选A。

5.5. What is the main idea of the passage?

A Ways to write good essays.

B Benefits of brain activity.

C How to use ChatGPT properly.

D Risks of ChatGPT for students.

解析：选D。D 主旨大意题。文章开篇提出问题：将ChatGPT用于学业会损害学生独立思考的能力吗？接下来文章围绕 “使用 ChatGPT 完成作业对学生（尤其是大脑发育）的风险” 展开，核心是其潜在危害。故选D。