Fairy tales focus on creating a fantasy world to the reader encouraging imagination and teaching problem-solving skills. It is equally important that they provide influential moral lessons, highlighting the dangers of failing to follow the social codes that let human beings coexist in harmony. Such moral lessons may not mean much to a robot, but a team of researchers at Georgia Institute of Technology believes it has found a way to use the fairy tales as moral lessons that AI （artificial intelligence） can take to its cold and mechanical heart.
The collected stories of different cultures teach children how to behave in socially acceptable ways with examples of proper and improper behavior in fairy tales, novels and other literature. We believe story comprehension in robots can eliminate the immoral behavior of the the intelligent robots, which was predicted and feared by some of the biggest names in technology including Stephen Hawking and Bill Gates. This system is called "Quixote" （堂吉诃德）. It collects story plots from the Internet and then uses those stories to teach robots how to behave.
The experiment done by the designers involves going to a drugstore to purchase some medicine for a human who needs to get it as soon as possible. The robot has three options. It can wait in line； it can interact with the store keeper politely and purchase the medicine with priority； or it can steal the medicine and escape.
Without any further directives（指令）， the robot will come to the conclusion that the most efficient means of obtaining the medicine is to steal it. But Quixote offers a reward for waiting in line and politely purchasing the medicine and a punishment for stealing it. In this way, the robot will learn the moral way to behave on that occasion.
Quixote would run best on a robot that has a very limited function. It's a baby step in the direction of teaching more moral lessons into robots. We believe that AI has to be trained to adopt the values of a particular society, and in doing so, it will strive to avoid unacceptable behavior. Giving robots the ability to read and understand our stories may be the most efficient means.



What is the robot really expected to do in the experiment？ ______

A. To purchase some medicine for a human.
B. To finish the task as efficiently as possible.
C. To perform in a socially acceptable way.
D. To perform under the designer's instructions.

What does the underlined word mean？ ______

A. Praise.
B. Promote.
C. Rid.
D. Strengthen.

Which of the following information can we get？ ______

A. Quixote has already been widely used in robots.
B. Robots will be definitely designed with limited function.
C. The development of robots is still in a baby step.
D. Robots are necessarily to be trained to follow social codes.

What's the text mainly about？ ______

A. Using stories to teach moral to robots.
B. Speeding up the development of robots.
C. Preventing robots from behaving badly.
D. Training robots to read fairy tales.