题目内容：

    While the start of a new school year is always exciting, this year was even more so for some elementary school students in Auckland, New Zealand. They became the world’s first kids to be “taught” by a digital teacher. Before you start imagining a human-like robot walking around the classroom, Will is just an avatar that appears on the student’s desktop, or smartphone screen, when ordered to come.

The autonomous animation platform has been modeled after the human brain and nervous system, allowing it to show human-like behavior. The digital teacher is assigned to teach Vector’s “Be sustainable with energy”— a free program for Auckland elementary schools.

Just like the humans it replaced, Will is able to instantly react to the students’ responses to the topic. Thanks to a webcam and microphone, the avatar not only responds to questions the kids may have, but also picks up non-verbal cues. For instance, if a student smiles at Will, he responds by smiling back. This two-way interaction not only helps attract the students’ attention, but also allows the program’s developers to monitor their engagement, and make changes if needed.

Nikhil Ravishankar believes that Will-like avatars could be a novel way to catch the attention of the next generation. He says, “I have a lot of hope in this technology as a means to deliver cost-effective, rich, educational experience in the future.”

The program, in place since August 2018, has been a great success thus far. Ravishankar says, “ What was fascinating to me was the reaction of the children to Will. The way they look at the world is so creative and different, and Will really captured their attention.” However, regardless of how popular it becomes, Will is unlikely to replace human educators any time soon.

1.What was special for some elementary school students in Auckland?

A. A digital teacher taught them.

B. They first saw something digital.

C. This was the start of a new school year.

D. They could get close to smartphone screen.

2.What is the benefit of this two-way interaction?

A. It can smile back. B. It can use microphone.

C. It can talk any topic for free. D. It can change if necessary.

3.What’s Ravishankar’s attitude to Will’s replacing Human educators soon?

A. Optimistic. B. Doubtful.

C. Unclear. D. Disapproving.

4.What might be the best title for the passage?

A. New High-tech Contributes to Education

B. The World’s First Digital Teacher Appears in Classroom.

C. The World’s First Digital Teacher, a Help to Students

D. New Zealand Will Replace Teachers in Classrooms