The increase in online education has allowed a new type of teacher to emerge-an artificial one.But just how accepting students are of an artificial instructor remains to be seen.That's why researchers at the University of Central Florida's Nicholson School of Communication and Media are working to examine student perceptions of A-based teachers.Some of their findings published recently in the International Journal of Human-Computer Interaction indicate that for students to accept an AI teaching assistant it needs to be effective and easy to talk to.
    According to Jihyun Kim，the lead author of the study，the hope is that by understanding how students relate to AI-teachers，engineers and computer scientists can design them to easily integrate into the education experience.
    "To use machine teachers effectively we need to understand students' views on machine teachers their leaning experiences with them and more，" Kim says. "This line of research is needed to design effective machine teachers that can actually facilitate positive learning experiences."
    AI teaching assistants can help ease a teacher's workload，such as by responding to commonly asked questions by students.These questions，which often pear each semester and become numerous in online classes with hundreds of students，can become a large task for a teacher.The quick delivery of answers also helps students.
    An example of an AI teaching assistant is one named Jill Watson that was created by a researcher at the Georgia Institute of Technology.Jill was fed the thousands of questions and answers commonly asked in the researcher's online class that he'd taught over the years.With some additional learning and adjustments，Jill was eventually able to answer the students' commonly asked questions accurately without any human assistance as if she was one of the researcher's human teaching assistants.
    "I hope our research findings help us find an effective way to incorporate AI agents into education，" Kim says. "By adopting an AI agent as an assistant for a simple and repetitive task，teachers would be able to have more things scheduled such as meeting with students and developing teaching strategies."

（1）What kind of AI teaching assistants can students easily accept？

Ones that are effective and easy to talk to.

Ones that are effective and easy to talk to.

（2）What do researchers need to do to design effective AI teaching assistants？

They need to understand students' views on machine teachers，their learning experiences with them and more.

They need to understand students' views on machine teachers，their learning experiences with them and more.

（3）Please decide which part is false in the following statement，then underline it and explain why.
With the help of AI-based teaching assistants，human teachers can not only be relieved from heavy work but also have more time to answer commonly asked questions by students.

According to the passage，it is the Al-based teaching assistants rather than teachers that can answer commonly asked questions by students.

According to the passage，it is the Al-based teaching assistants rather than teachers that can answer commonly asked questions by students.

（4）Explain how AI technology can be used in a different field in our life. （about 40 words）

AI is widely used in the field of transportation.Using AI，the navigation systems in cars and on cellphones are able to recommend the best routes based on real time traffic data.Also，AI can be used to make self-driving vehicles more convenient and much safer.

AI is widely used in the field of transportation.Using AI，the navigation systems in cars and on cellphones are able to recommend the best routes based on real time traffic data.Also，AI can be used to make self-driving vehicles more convenient and much safer.