Unit 1 —— What does he look like?

1c：
A: What does your friend look like?
B: She's of medium height, and she has long straight hair.

2d：
Mike: Hi, Tony. Are you going to the movie tonight?
Tony: Yes. We're meeting at seven, right?
Mike: Yeah, but I may be a little late. My friend David is going, too. Just meet him in front of the cinema first.
Tony: Oh, but I don't know him. What does he look like?
Mike: Well, he has brown hair and wears glasses.
Tony: OK. Is he tall or short?
Mike: He isn't tall or short. He's of medium height.
Tony: OK, sure. See you later then.

2b：
An Interesting Job
Joe Brown has a very interesting job. He is a police artist. Some people see crimes and then talk to Joe. They tell him what the criminal looks like. Then Joe draws a picture of the criminal, and the police put it in newspapers and on television to find him.
He wants to draw a good picture of each criminal, but this job is sometimes difficult. Many people don't always see things the same way so they may describe the same person differently. Also, they don't always remember well. “The criminal is of medium build and young. He has long straight black hair and big eyes,” says one woman. Another woman says,“He is tall and thin, and he has curly blond hair. He's about thirty years old.” A man says, “He is of medium height. He has a long nose and small eyes. He wears a brown jacket.” In the end, the real criminal is a short and heavy old man, and he has short black hair!
1.What does Joe Brown do?
2.Is this job easy or difficult? Why?