2015年職稱英語考試?yán)砉ゎ愰喿x理解模擬題(1)
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2015年職稱英語考試理工類閱讀理解模擬題(1)
Batteries Built by Viruses
What do chicken pox,the common cold, the flu,and AIDS have in common? They’re all disease caused by viruses,tiny microorganisms that can pass from person to person.It’s no wonder1 that when most people think about viruses, finding ways to steer clear of2 viruses is what’s on people’s minds.
Not everyone runs from the tiny disease carriers, though3.In Cambridge, Massachusetts4, scientists have discovered that some viruses can be helpful in an unusual way.They are putting viruses to work, teaching them to build some of the world’s smallest rechargeable batteries.
Viruses and batteries may seem like an unusual pair,but they’re not so strange for engineer Angela Belcher,who first came up with5 the idea.At the Massachusetts Institute of Technology (MIT) in Cambridge, she and her collaborators bring together different areas of science in new ways.In the case of the virus-built batteries, the scientists combine what they know about biology, technology and production techniques.
Belcher’s team includes Paula Hammond,who helps put together the tiny batteries, and Yet-Ming Chiang, an expert on how to store energy in the form of a battery.“We’re working on things we traditionally don’t associate with nature.” says Hammond.
Many batteries are already pretty small.You can hold A.C and D batteries6 in your hand.The coin―like batteries that power watches are often smaller than a penny.However,every year,new electronic devices like personal music players or cell phones get smaller than the year before.As these devices shrink, ordinary batteries won’t be small enough to fit inside.
The ideal battery will store a lot of energy in a small package.Right now,Belcher’s model battery,a metallic disk completely built by viruses,looks like a regular watch battery.But inside,its components are very small―so tiny you can only see them with a powerful microscope.
How small are these battery parts? To get some idea of the size,pluck one hair from your head.Place your hair on a piece of white paper and try to see how wide your hair is―pretty thin,right? Although the width of each person’s hair is a bit different,you could probably fit about l0 of these virus―built battery parts,side to side,across one hair.These microbatteries may change the way we look at viruses7.
詞匯:
chicken pox水痘
microorganism n.微生物
metallic adj.金屬的
collaborator n.合作者,協(xié)作者
pluck v.拔,摘,采
注釋:
1.no wonder:不足為奇的,難怪
2.steer clear of:避開,繞開
3.though:意思為“然而,可是”。在句中使用時(shí)通常放在句末。
4.Cambridge,Massachusetts:馬薩諸塞州的劍橋市。本文第三段提到的the Massachusetts
Institute of Technology (MIT) in Cambridge即指坐落于劍橋市的麻省理工學(xué)院。麻省理工學(xué)院于1861年由著名自然科學(xué)家威廉?巴羅吉杰斯創(chuàng)立。這是美國的一所私立研究型大學(xué),培養(yǎng)高級(jí)科技人才和管理人才,是以理工科為主的、世界一流的綜合性大學(xué)。
5.came up with:提出
6.A,C and D batteries:A、C、D均為電池型號(hào)。
7.These microbatteries may change the way we look at viruses:這些微型電池可能會(huì)改變我們看待病毒的方式。作者想表達(dá)的意思是:人們一直認(rèn)為病毒有害無益,現(xiàn)在病毒可用來制作電池,人們對(duì)病毒的看法可能會(huì)因此而發(fā)生變化。
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