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Elon Musk’s AI company, xAI, has just released a new AI called Grok 3. Elon Musk says it’s the smartest AI in the world. He believes Grok 3 can think better than any other AI they have tested.

In November 2023, xAI made its first big AI, Grok-1. This AI had 314 billion parameters (参数). In March 2024, they let everyone see how Grok works by making it open-source. Then, in August 2024, they launched Grok-2.

The newest version, Grok 3, is special because it can think step-by-step like humans do. This means it can solve tricky problems and give clearer answers. It also improves on writing code, looking at text, and analyzing pictures.

At the same time Elon Musk announced Grok 3, Sam Altman, who runs OpenAI, said their newest AI, GPT-4o, became smarter too. GPT-4o can now understand and write language better than before.

DeepSeek, another AI, is growing very fast. In less than a week, many companies joined DeepSeek. These include big names like Microsoft, Nvidia, and Amazon. WeChat, a popular messaging app, is trying to work with DeepSeek. Several leading state-owned tech companies are also thinking about working with DeepSeek to build smart computing centers to handle lots of data for 5G and future 6G networks.

1.1.What’s Elon Musk’s attitude towards Grok 3?

A He speaks highly of it.

B He doesn’t like it at all.

C He has no strong opinion.

D He thinks it’s just-so-so.

解析：选A。A 细节理解题。根据第一段“Elon Musk says it’s the smartest AI in the world. He believes Grok 3 can think better than any other AI they have tested.”可知，马斯克高度赞扬了Grok 3。故选A。

2.2. Everyone could see Grok’s code since ______.

A November 2023

B March 2024

C August 2024

D March 2025

解析：选B。B 细节理解题。根据第二段“In March 2024, they let everyone see how Grok works by making it open-source.”可知，2024年3月，xAI通过开源使公众能查看Grok的代码。故选B。

3.3.What’s new with Grok 3?

A It mainly deals with the human voice.

B It has increased the number of parameters.

C The public can check its code now.

D It thinks in a way similar to humans.

解析：选D。D 细节理解题。根据第三段“Grok 3, is special because it can think step-by-step like humans do.”可知，Grok 3的特殊之处是能像人类一样逐步思考。故选D。

4.4.What does the last two paragraphs imply?

A Old businesses lead AI technology.

B Big companies work together to stop AI growth.

C Data centers will take over 5G systems.

D Many groups speed up AI competition.

解析：选D。D 推理判断题。根据最后两段内容，Elon Musk的Grok 3和OpenAI的GPT-4o都在提升以及DeepSeek的快速发展，吸引了微软、英伟达、亚马逊各大公司合作，显示了更多的参与者进入AI领域，竞争加剧。故选D。

5.5.In which part of a magazine can we most probably read the passage?

A Entertainment

B Business Strategies

C Science & Technology

D Travel & Lifestyle

解析：选C。C 推理判断题。根据全文内容可知，文章通过马斯克旗下人工智能初创公司xAI正式发布新一代聊天机器人Grok 3这一新闻，引出AI技术的迭代发展及科技公司的技术竞争与合作。属于科技文章。故选C。