单选题 Question 16-20 are based on the following dialogue:
【正确答案】 B
【答案解析】[听力原文]
M: Now would you go through that door and slip off your pullover and bra, please? I"d like to examine your breast. Do you feel any pain?
W: No.
M: Have you noticed any discharge from the nipple?
W: No, nothing like that.
M: And your periods. Are they regular?
W: No. They are a bit unpredictable. I think I must be going through the change.
M: Could you put your arms behind your head, please? Good.
W: Can you feel the lump in my breast?
M: Yes. There is no doubt a little lump in the breast.
W: What is it? Is it serious?
M: That"s what I am going to find out. I can"t tell you now what it is just by manipulating it. But the sooner we find it out, the better. So I"d like you to have some special X-rays and some blood tests.
W: What are these X-rays for?
M: Well, they can tell us where the lump is and what it may be. And I"d like you to come into hospital for your operation on Friday.
W: An operation?
M: The only way we can be sure about the lump is to take it out and examine it under a microscope.
W: Will I have to have an operation?
M: I"m afraid so, yes. The lump will have to be investigated.
W: But I don"t want to lose my breast.
M: Don"t worry. It shouldn"t be necessary. I hope it will be a minor one, and shouldn"t leave too much of a scar. But naturally it"s impossible to rule it out completely. All right? If you go along with the nurse now, she"ll take you over to the radiology department to get those pictures taken.
W: Thank you, doctor.

According to the woman, what causes the irregularity of her periods?

[解析] 推断题。男士问女士的经期是否正常。女士回答说有一点不正常,她认为是她现在正在经历更年期的原因。
【正确答案】 D
【答案解析】[听力原文]
Why does the man ask the woman to come into hospital before the due date of her operation?

[解析] 推断题。由男士的话可知,在女士做手术之前,还需要拍X光片及血液检查。
【正确答案】 D
【答案解析】[听力原文]
How does the man attempt to relieve the woman"s anxiety about the operation?

[解析] 细节题。由女士的话可知,她害怕做手术会失去她的胸部。男士安慰她说不必担心,这只是一个小手术,不会留下太大的疤痕。
【正确答案】 A
【答案解析】[听力原文]
What does "it" refer to when the man says "rule it out"?

[解析] 推断题。男士所说的话是为了安慰女士害怕失去胸部,因此他解释说只是一个小手术,不会切除整个胸部。
【正确答案】 C
【答案解析】[听力原文]
Who will take the special X-rays?

[解析] 推断题。由男士的最后一句话可知,他让女士和护士一起去放射科,去那里拍X光片,因此应是由放射技师来拍。