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[originaltext]W: Excuse me, I’ve been using this old book for a research projec
[originaltext]W: Excuse me, I’ve been using this old book for a research projec
游客
2024-03-03
65
管理
问题
W: Excuse me, I’ve been using this old book for a research project and I notice that a lot of pages are turning brown and becoming brittle.
M: Yes. Unfortunately, that’s a common problem with books made from wood pulp.
W: I suppose that to make paper from wood you have to add a lot of chemicals and acids to make it turn white.
M: Exactly, and it’s the acid that eventually eats away the paper:
W: Oh, that actually makes sense, but this book’s not even 75 years old and I’ve seen books in museum that are hundreds of years old and they’re in free condition.
M: Well, you see, books have been made from wood pulp only since the 1850s, before that they were made from materials mostly animals’ skins, and no chemicals were added.
W: It’s a shame those older wood pulp books are going to fall apart some day. Is there anything that can be done to preserve them?
M: Eh, currently the only way to stop the books from decaying is to remove the binding and treat each page individually to remove the acid.
W: That doesn’t sound very economical.
M: No, it isn’t. It’s not practical to treat a large number of books with this process, so we only try to rescue the most valuable edition books in our collection.
W: Well, thanks for the explanation. I’d better get back to my project.
M: Good luck and I hope the old book will hold long enough for you to finish it.
选项
A、The early history of bookbinding.
B、How old books become valuable.
C、Economical ways to protect old books.
D、Why some books decay.
答案
D
解析
What are the speakers mainly discussing?
综合推断题。结合听力材料,特别是对话开头提到的old book...a lot of pages are turning brown and becoming brittle可以推断,对话谈论的是书的腐烂问题,所以D正确。
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