文字稿
美國的研究人員設計了一本教人們?nèi)绾瓮ㄟ^過濾方式獲取飲用水的說明書。而這本書的每一頁紙都可以被撕下來充當濾紙。 BBC 的 Jonathan Webb 有以下報道：
More than 600 million people around the world lack access to clean drinking water and this book has the potential to help.
It's relatively cheap, easy to ship and its pages serve two purposes: firstly, they are printed with instructions on how and why water should be filtered; secondly, they can be torn out and used as filters.
The paper contains nanoparticles of copper or silver, which kill bacteria and the new trial results from water sources in South Africa, Ghana and Bangladesh confirm that on average the paper slashes the bacteria count of contaminated water by well over 99%.
詞匯表
lack 缺乏
potential 潛力
torn out （從書本里）撕下來
nanoparticles 納米粒子
copper 銅，銅的
silver 銀，銀的
bacteria 細菌
slashes 削減，大幅降低
contaminated 受污染的
測驗
請聽報道并回答下列問題。
1. How will people know how to use the book to make water safe to drink?
2. True or false? Any book can be used to make water drinkable.
3. How effective is the filter in making water safe?
4. Which word in the article means 'scientific test'?
答案
1. How will people know how to use the book to make water safe to drink?
Answer: Instructions on how to use it are written on the pages.
2. True or false? Any book can be used to make water drinkable.
Answer: False. The pages of this particular book contain copper and silver, which kill bacteria.
3. How effective is the filter in making water safe?
Answer: According to the report, it removes over 99% of bacteria from contaminated water.
4. Which word in the article means 'scientific test'?
Answer: Trial.
