A humanoid (人形机器人) robot named “Xiao An” recently assisted in a science lesson at a primary school in Hefei, Anhui Province. This special class showed how artificial intelligence (AI) can be used in real education.

Xiao An is 1.4 meters tall and was developed by a local technology company. During the science lesson, which was about designing small instruments, the robot worked together with the teacher to help students explore the topic of sound. The robot acted much like a professional teacher. It can guide students step by step and encourage them to think more deeply. What makes Xiao An special is its ability to understand students’ emotions and move naturally when it talks.

When the robot entered the classroom, the children were immediately interested. For example, before class began, Xiao An imitated the sounds of different musical instruments. This made the students curious. They started guessing the names and features of the instruments, which sparked (引发) their creativity. The robot is smart enough to answer students’ questions thoughtfully. Instead of just giving simple answers, it helps them learn by encouraging them to find answers themselves.

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1.1. What was Xiao An’s main role in the primary school?

A Teaching English lessons.

B Assisting in a science class.

C Organizing sports activities.

D Cleaning the classroom.

解析：选B。B 细节理解题。根据第一段的“A humanoid robot named ‘Xiao An’ recently assisted in a science lesson”可知，小安机器人在这个学校的主要角色是协助科学课教学。故选B。

2.2. What do we know about Xiao An from Paragraph 2?

A Its weight.

B Its color.

C Its height.

D Its age.

解析：选C。C 细节理解题。根据第二段第一句“Xiao An is 1.4 meters tall and was developed by a local technology company”可知，小安的身高是1.4米。A选项“体重”、B选项 “颜色”、D 选项 “使用时长（年龄）”在第二段均未提及。故选C。

3.3. How did the children react when Xiao An came into the classroom?

A They became bored.

B They showed interest.

C They kept quiet.

D They felt scared.

解析：选B。B 细节理解题。第三段第一句直接说明 “When the robot entered the classroom, the children were immediately interested”，即孩子们立刻表现出兴趣，对应选项 B。A 选项 “感到无聊”、C 选项 “保持安静”、D 选项 “感到害怕” 均与原文描述相反，不符合文意，因此排除。故选B。

4.4. How does Xiao An handle students’ questions?

A By giving simple answers.

B By ignoring their questions.

C By encouraging self-learning.

D By imitating instrument sounds.

解析：选C。C 推理判断题。第三段提到 “Instead of just giving simple answers, it helps them learn by encouraging them to find answers themselves”，说明小安不会只给简单答案，而是鼓励学生自己寻找答案，核心是引导自主学习，对应选项 C。A 选项 “给出简单答案” 与原文 “instead of just giving simple answers” 矛盾；B 选项 “忽视问题”、D 选项 “模仿乐器声音” 均与处理问题的方式无关，故排除。故选C。

5.5. What will the company do for Xiao An in the future?

A Add more functions.

B Make it heavier.

C Stop using it.

D Sell it cheaply.

解析：选A。A 细节理解题。最后一段明确指出 “In the future, the company plans to add more functions”，即公司未来计划为小安增加更多功能，对应选项 A。B 选项 “让它更重”、C 选项 “停止使用它”、D 选项 “低价出售它” 在文中均未提及，无相关依据，因此排除。故选A。