Question

   Here's a very clever idea: A book that not only contains information about clean drinking water printed on its pages,but the actual pages themselves can be tom off and used as high-tech filters(过滤器) that will remove 99% of bacteria from the filtered water. The idea came out of Dr. Theresa Dankovjch's chemistry PhD work at McGill University in Montreal,during which she invented a new bactericidal (杀菌的) silver nanoparticle (银纳米颗 粒) paper and a green method of producing it using cheap processes. She and her team are now trying to make the Drinkable Book a reality to contribute to the effort to bring clean water to the 663 million people who don't have access to it.

   Here's the description of the project from the official website: 

   The Drinkable Book ^TM is both a water filter and a manual for how and why to clean drinking water. This filter works to produce clean drinking water by pouring dirty water through a thick,strong sheet of paper containing silver nanoparticles,which can kill microbes（微生物）. This paper was created and shown to be highly antibacterial. Additionally,these filters meet US EPA guidelines for bacteria removal to produce safe drinking water. The filters can last a couple of weeks,even up to a month,so the entire books could provide the tools to filter clean water for approximately a year.

   I hate to rain a little bit on this parade,but ... While it's a very clever idea,and it looks like a lot of work and effort has been put into designing and testing the Drinkable Book,sometimes the simplest ideas are best. Getting clean water instruction and water filters to people in need separately might still be the best and most cost-effective way to do things. Manuals with instructions printed in the local language would be very cheap to produce,and mass-produced water filters,which can use the same technology as the book,if that's the best,would probably be cheaper if they are not bound into nice-looking books.

25. What is the main function of the book?

   A. It can find water.

   B. It can store water.

   C. It can purify water.

   D. It can produce water.

26. The content in the book is mainly to .

   A. instruct readers   B. entertain readers   C. inspire readers   D. warn readers

27. What does the author think of the book?

   A. It is nearly useless.

   B. It is poorly designed.

   C. It is not very beautiful.

   D. It is not very economical.

28. Where is the text most probably taken froin?

   A. A book review. B. A personal diaiy.

   C. An advertisement. D. A science magazine.

Answer 1

25.    C 26.    A 27.   D 28.   D

(现代技术)

本文是说明文。文章介绍了一种可用于净化水的书及作者对此书的评价.

25.    C。细节理解题。由第一段中的the actual pages themselves can be tom off and used as high-tech filters that will remove 99% of bacteria from the filtered water可知，该书的主要功能是 可以净化水。

26.    A. 推理判断题。由第三段中的a manual for how and why to clean drinking water可推断，书中的内容主要用来指导读者怎么样及为什么净 化饮用水。最后一段的clean water instruction 也是提示。

27.   D. 推理判断题。由最后一段中的the simplest ideas are best ... would probably be cheaper if they are not bound into nice-looking books 可推 断，作者认为该书虽有很好的创意，但是不够经济。

28.   D. 文章出处题。通读全文可知，作者首先介绍 了一项关于可净化水的书的发明，然后发表了 对该发明的看法。故本文最有可能选自某科学杂志。