DeepSeek, an artificial intelligence system developed in China, has recently gained worldwide popularity. According to a report by TechWorld Magazine, its user base has exceeded 50 million globally within just three months of release.

This AI tool can help users with various tasks like writing essays, solving math problems, and even creating digital artwork. What makes it special is its ability to understand 28 languages and provide real-time translation. Many teachers in Europe have started using DeepSeek to prepare teaching materials.

“We aim to make AI accessible to everyone,” said Dr. Li, the chief developer. The team is now working on a new version that can recognize human emotions through voice analysis. However, some experts warn about the risks of over-relying on AI technology.

1.1. How many languages can DeepSeek understand?

A 15.

B 20.

C 25.

D 28.

解析：选D。D 细节理解题。原文第二段中明确说明 “understand 28 languages”，故选D。

2.2. What can we infer about DeepSeek’s future development?

A It will stop updating.

B It may add emotional recognition.

C It will focus only on translation.

D It plans to reduce language support.

解析：选B。 B 推理判断题。第三段提到正在开发"recognize human emotions"，暗示未来可能加入情感识别功能。故选B。

3.3.The underlined word “accessible” in Paragraph 3 most probably means ________.

A expensive

B easy to use

C dangerous

D complicated

解析：选B。 B 词义猜测题。上下文显示开发者的目标是让人工智能“触手可及”，对应“easy to use”。故选B。

4.4. Who has started using DeepSeek for teaching preparation?

A Chinese engineers.

B European teachers.

C American doctors.

D African farmers.

解析：选B。B 细节理解题。第二段明确提到“Many teachers in Europe”使用该工具。故选B。

5.5. What is the main purpose of this passage?

A To warn about AI dangers.

B To introduce a popular AI tool.

C To compare different AI systems.

D To explain how AI works.

解析：选B。B推理判断题。全文围绕DeepSeek的功能和影响展开，属于产品介绍类文章。故选B。