Question 9 is based on the conversation you have just heard.

A

It makes the hostess’s job a whole lot easier.

B

It enables guests to walk around and chat freely.

C

It saves considerable time and labor.

D

It requires fewer tables and chairs.

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答案：

B

解析：

听力原文

M: (8) [So what time do you think we should have the party on Saturday?]

W: How about inviting people to come at 6 pm? Then we’ll have the afternoon to prepare food and drink and stuff like that.

M: Yes, I was thinking that around 6 would be good, too. What food should we provide?

W: Well, I had thought about baking a cake and some biscuits. And now, I think we should prepare some sandwiches and snacks and some other kinds of food, so that (9) [people can just help themselves, rather than getting everyone to sit down at the table to eat a meal. I think that’s a bit too formal. It’s better to let people walk around and talk to each other, or sit where they like.]

M: Yes, that sounds good. I’ll go to the supermarket to get some drinks. I think I might try that big new supermarket on the other side of town and see what they have. I’ve not been there before. I think we should get some beer and wine, and some fruit juice, and other soft drinks. What do you think?

W: Sounds great. I think those drinks would be enough. (10) [And I heard that the new supermarket offers some big discounts to attract customers,] so going there should be a great idea. What should we do about music?

M: (11) [Maybe we should ask Paul to bring his computer and speakers so that we can play some music.] He has a great collection of different stuff!

W: Yes, all right.

9. Why does the woman say it is a good idea to serve foods that guests can help themselves to? （为什么女士说提供客人们能自取的食物是个好主意？）

解析：B。在录音中间部分女士提到，桌餐有些过于正式，如果让客人可以自取食物，他们就可以四处走动，互相交谈。B项与此内容相符，其中的walk around为原词复现，chat freely对应录音中的talk to each other，故B项为正确答案。

错项排除：A项和C项在录音中没有依据，故均排除。录音中虽然提到了table和sit，但这里只是就桌餐和自助餐进行了对比，并没有提到桌椅的数量多少，故排除D项。