3、Teachers and textbooks beware―your future could be under threat from a quickly developing and very smart technology．

University of California researchers led by Jacob White hill recently programmed teaching robots to react to facial expression．White hill's achievement marked a major step forward in the way people could one day learn by establishing facial expression recognition in robot teachers.

The teaching robots or，Intelligent Tutoring Systems（ITS）are computer systems that provide personalized instruction and feedback to students without human intervention．The facial expression recognition allows a computer to react according to expressions a user makes.

He said that the system was an important development in improving learning systems. “Classical I T S typically have a somewhat rigid architecture of ‘first I ask a question; then I wait for a response; then I talk some more；then 1 wait for another response.’ Facial expression recognition，l believe，will allow the feedback from student to teacher to happen while the robot teacher is talking．”White hill said．

Experts agree the latest developments in ITS open new possibilities for how people could learn．University of Memphis researcher, Dr Andrew Olney，who recently received a US $1.3 million grant to develop an ITS，said the key to future learning will be enabling interactive（交互的），one-on-one instruction．

“The technology can benefit these more advanced learning scenarios（方案），”he said．

Although robot teachers of varying abilities have existed for more than 30 years，ITS developments such as White hill's and Olney's are pushing beliefs that robots could soon be as effective as―if not more effective than human teachers．

“The ITS which have been developed are already better teachers than people who have no experience。”Olney said．

So，what is the future for today's teachers，classrooms，and textbooks?

 

65．The underlined word “beware” in paragraph 1 has the similar meaning to_____________.

A．take care    B．get ready    C．take it easy    D．have a look

66．The newly teaching robots are more advanced because they have_______________.

A．Jacob White hill as the designer

B．a program reacting to facial expressions

C．a system to help people learn

D．a set of instruments to recognize your voice

67．Compared with classical ITS，developed ITS can__________________.

A．ask and answer questions in turns

B．provide feedback to students in less time

C．somewhat interact with the students

D．make different facial expressions

68．According to the text，we can infer that_______________.

A．in the future，students will not need textbooks at all

B．the developed ITS can answer any question students ask

C．facial expression recognition in ITS has existed for a long time

D．in the future teaching robots will possibly take the place of human teachers

69．The writer seems to ___________ the newly-developed teaching robots．

A．throw doubt on          B．object to

C．take no interest in       D．approve of

70．The author wrote the passage aiming to____________．

A．warn teachers against robot teachers in advance

B．explain how robot teachers in the future work

C．introduce a newly developed teaching robot

D．show his respect for the designers of the advanced ITS