Question 10 is based on the conversation you have just heard.

听力原文

W: Rays Solar. Lisa speaking. How can I help?

M: Hi, my name is Winston. (8) [I wish to enquire about solar panel installations.]

W: Yes, what would you like to know?

M: Well, my neighbor installed panels on his roof about a year ago in order to power his hot water. He tells me it has saved him over $500 thus far. Does that sound about right to you?

W: Well, I’m not familiar with your neighbor or his particular setup, but that amount is definitely possible. I can tell you that the average four-bedroom house may typically have a roof with 50 square meters of surface area. Four panels on one side of that roof could save a family of four around $300 a year.

M: OK. That sounds about right then. My house is about the size you described, but my neighbor’s is bigger. I’m not sure how many panels he has up there, (9) [but he does have a large family of six.]

W: Are you interested in installing some solar panels on your roof, sir?

M: Yes, I’m considering it.

W: If you wish to come into our office, we could show you the different solutions we offer.

M: OK. I might do that. (10) [But just quickly, if you don’t mind, could you tell me approximately how much a typical installation costs, like, say, four panels?]

W: Prices do vary depending on different factors, but as a rough estimate, it’s around $2,000. But you know, (11) [a typical household will make back that initial investment in about five years.]

M: OK. I see. Thank you.

10. What is one of the man’s chief concerns? （男士主要关心的一点是什么？）

解析：B。此题可用到视听一致原则作答，需注意出题点在问句。录音中男士问女士常规安装大约需要多少钱，由此可知，男士关心的是安装太阳能电池板的费用，B项与录音内容一致，故为正确答案。

错项排除：录音中男士主要咨询的是太阳能电池板的节省情况以及相关费用，并未提及太阳能电池板公司的服务以及太阳能电池板的维护和质量问题，故排除A、C、D三项。