听力题 M: Have you done the lab for physiology yet — the one on taste? W: Yeah, it was kind of fun — mapping the taste buds. Didn''t you think so? M: I''m doing it this afternoon. How long will it take? W: It went pretty quickly — under an hour, anyway. See, first you mix up the four solutions. M: You take water and add either sugar, lemon juice, salt, or... uh... What was it? W: Bitter kwinnine. M: That''s it... uh ... then what? W: Then all you have to do is taste each sample and describe where each flavor seems most intense. M: Is that hard? W: Not really. One thing to remember though — not all the taste buds are on the tongue. M: Right. I''ll keep that in mind. And thanks for going over this with me. Maybe we could talk about this after I''ve tried it — we could get a pizza or something. W: Great. Give me a call.