2.For those who have no access to clean water,the phrase"a thirst for knowledge"may soon have a new meaning.Researchers have developed a book with specially treated pages that can make water safe to drink.The researchers say their invention could improve the lives of many in the developing world.
An estimated 600 to 700 million people around the world are at risk of disease or even death because their drinking water is not clean.The water is infected with harmful bacteria or other pollutants.But researcher Teri Dankovich has developed a special book that could turn dirty water into clean,drinkable water.The book contains 25 pages.Each page is about one millimeter thick.The pages contain very small particles (微粒) of silver.The pages can be used as filters (過濾器) to remove harmful microorganisms that can pollute drinking water.The filter kills the organisms that pass through it.Ms.Dankovich says each page can treat up to 100 liters of water.Pictures on the pages show the dangers of dirty water and how to use the book for those unable to read.The pages are made of filter paper.They are designed to be torn from the book.Water can be poured through the paper to be decontaminated.
Teri Dankovich and another researcher tested the drinkable book in Bangladesh,Ghana and South Africa.The tests proved to be successful.At the meeting of the American Chemical Society in Boston,Ms.Dankovich was asked whether she has considered adding classic literature on the book's pages."The idea of classical texts-that's of interest maybe later.But we have discussed a little bit more exciting text.But we really haven't had the time to go through that part,"she laughed.
Water for Life,a non-governmental organization,has provided financial support for the project.It costs just pennies per page to produce each book.
28.How does the book help people get clean water?A
A.The tiny metal particles on the pages remove the pollution.
B.Its pages can produce small particles when dropped into water.
C.It contains knowledge of water cleaning on each of the pages.
D.It carries information about the harm caused by dirty water.
29.The underlined word"decontaminated"in Paragraph 2 probably meanD.
A.tested B.boiled C.a(chǎn)bsorbed D.cleaned
30.What can we infer about the drinkable book with classical texts?D
A.It will be available soon.
B.It's a joke to the researchers.
C.It's a waste of time to do research on them.
D.It has not been on the researchers'schedule.
31.What is the passage mainly about?A
A.Book pages providing safe drinking water.
B.Water pollution in developing countries.
C.Books designed to improve people's lives.
D.A new test carried out successfully.
分析 本文是一篇人物故事類閱讀,屬于說明文,對(duì)于那些無(wú)法獲得干凈的水,這個(gè)短語(yǔ)"求知欲"可能很快就會(huì)有一個(gè)新的意思,研究者已經(jīng)開發(fā)出一本書,頁(yè)面可以過濾,提供安全的飲用水,研究人員說他們的發(fā)明可以挽救發(fā)展中國(guó)家的許多人的生命.
解答 28.答案:A.細(xì)節(jié)理解題.根據(jù)The book contains 25 pages.Each page is about one millimeter thick.The pages contain very small particles (微粒) of silver.The pages can be used as filters (過濾器) to remove harmful microorganisms that can pollute drinking water.The filter kills the organisms that pass through it.可知,通過書中頁(yè)面上的金屬微粒去除污染.故選A.
29.答案:D.詞義猜測(cè)題.根據(jù)上下文內(nèi)容可知,Water can be poured through the paper to be decontaminated.句意為水可以通過紙張被凈化.故該詞意為凈化.故選D.
30.答案:D.細(xì)節(jié)理解題.根據(jù)But we really haven't had the time to go through that part可知,研究者還沒有規(guī)劃這部分時(shí)間.故選D.
31.答案:A.主旨大意題.文章給我們介紹了一種能過濾水中有害物質(zhì)的書,通過書頁(yè)過濾然后給我們提供安全地飲用水.故選A.
點(diǎn)評(píng) 本文是一篇人物故事類閱讀,題目涉及多道細(xì)節(jié)理解題,詞義猜測(cè)題,主旨大意題.做題時(shí)學(xué)生應(yīng)仔細(xì)閱讀原文,把握文章主要內(nèi)容,聯(lián)系文章上下文內(nèi)容并結(jié)合所給選項(xiàng)含義,從中選出正確答案,一定要做到有理有據(jù),切忌胡亂猜測(cè).