1 . 听下面一段独白，回答以下小题
1. What is the speaker mainly talking about?

A．A painting.

B．An artist.

C．An experiment.

D．A disease.

2. Which of the following best explains prosopagnosia?

A．The weakness of sight.	B．The inability to recall a face once seen.
C．The decline of memory with age.	D．The failure to memorize different orders.

3. What conclusion can be drawn from the study introduced in the passage?

A．Landscapes are easier to identify than other things.

B．Face recognition skills cannot be taught and improved.

C．Human brains handle faces differently from other objects.

D．People with some kind of blindness have a unique brain structure.